9BUnit3单元测试

9BUnit3单元测试
9BUnit3单元测试

9BUnit3单元测试

姓名:欧阳凝磊得分

细心认真地去做,就一定可以做到最好!要加油哦!

二、单项选择(20分)

( ) 1. Y ou can?t catch up with others you work hard.

A. until

B. after

C. unless

D. when

( ) 2. I have a raincoat an umbrella. That?s why I have to wait until the rain stops.

A. neither, nor

B. either, or

C. not only, but also

D. both, and

( ) 3. He is to carry the big box.

A. enough strong

B. strong enough

C. enough tall

D. tall enough

( ) 4. It is to cycle aroung Guilin.

A. a great fun

B. a fun

C. great fun

D. a great funny

( ) 5. I didn?t go to bed my mother came back last night.

A. until

B. if

C. since

D. while

( ) 6. The children without parents good care of by their teachers.

A. are taken

B. is taken

C. take

D. takes

( ) 7. of us knew anything about soul.

A. None

B. Nobody

C. No one

D. Nothing

( ) 8. there?s still a long way to go, we?d better continue to the end.

A. Although

B. Though

C. But

D. A and B

( ) 9. At the opening ceremony of the 2008 Beijing Olympic Games, Li Ning was to light the torch.

A. raised

B. risen

C. raising

D. rising

( ) 10. Mr King walks to work take some exercise at the same time.

A. so tht

B. in order to

C. in order that

D. such that

( )11. The American exchange students will leave Japan other Asian countries 28th May.

A. for, on

B. for, at

C. to, in

( ) 12. Have you heard of the scientist Julian?

A. call

B. calls

C. called

D. calling

( ) 13. is said that tourists visit Geyuan Garden every day.

A. That, thousands of

B. It, five thousand of

C. It, thousands of

D. This, three thousand of

( ) 14. – Excuse me, could you tell me ? -- Sorry, I?m new here, too.

A. where is the nearest bank

B. how can I get to the bank

C. which is the way to the bank

D. is there a bank near here

( )15. The eggs by the hen are still there.

A. lay, lying

B. lain, lay

C. laid, lying

D. laid, lie

( ) 16. He passed me a glass water.

A. fill with

B. filled of

C. full with

D. filled with

( ) 17. Y ou bought a new computer last week, you?

A. aren?t

B. don?t

C. didn?t

D. haven?t

( ) 18. – Would you mind my smoking here?

-- . Look at the sign. It says “No Smoking”.

A. It doesn?t matter

B. Y ou had beeter not

C. No, I don?t

( ) 19. I am sure that he is a lie.

A. saying

B. talking

C. speaking

D. telling

( ) 20. – What would some students like to do after finishing their education?

- They would like to start to work they needn?t depend on their parents completely.

A. as soon as

B. so that

C. before

D. while

三、完形填空(共2篇,20题,30分)

A

Allan comes from America. His father works in Beijing and his family come to 1 , too. The boy is studying in our school. He is only fourteen, but he is 2 than any othrer boy. So he sits in Row Six. Allan?s father has a 3 , but Allan comes to school by bus or by bike. Sometimes he 4 here. He likes playing football. So he?s 5 in our class. He can put the pictures and maps on the wall.

Allan can 6 English and French. And he knows a little Chinese,too. He often helps Miss Gao to 7 us English. After class we often talk in English or in Chinese. He tells us something about his country. It?s Mid-Autumn Day today. After 8 I ask the American boy to my home to have dinner. My parents give him 9 Moon-cakes. He likes them very much and eats a lot. He says they are 10 , so we give him some and ask him to take them to his parents before he leaves.

( ) 1. A. Canada B. America C. England D. China

( ) 2. A. longer B. taller C. younger D. older

( ) 3. A. car B. plane C. ship D. train

( ) 4. A. jumps B. sits C. runs D. stands

( ) 5. A. heavier B. the heaviest C. stronger D. the strongest

( ) 6. A. say B. speak C. read D. write

( ) 7. A. ask B. make C. teach D. count

( ) 8. A. breakfast B. work C. lunch D. school

( ) 9. A. much B. a lot of C. a lot D. one

( ) 10. A. bad B. delicious C. big D. round

B

Mr and Mrs King have lived in our town for nearly twenty years. They have a book shop by the bus station. They?re polite to everyone and have a lot of friends. They often 1

the poor students and sell them some bo oks cheaply. So there?re many young men in their shop. Of course people 2 them and their friends often visit them and 3 them. We can always hear their room is full of

4 and quarrel.

It was a Friday evening. Mr and Mrs King were going to have a picnic on the island the next

5 . it was little far from their town. So they had to

6 earlier than usual to catch a six o?clock train. After

7 a few friends came to see them while they were cooking some food for the picnic. Mr King and his wife had to stop to receivce them. They talked a lot and few of them looked at the

8 on the wall. It was late. Mr and Mrs King were anxious but they couldn?t tell the visitors about it. Mrs King thought for a few minutes and had an idea. She said to her husband, “Oh, it?s eleven o?clock!Y ou?d better stop talking, dear! Our guests are anxious to

9 !”

Mr King heard this and stood up, then he said 10 to the visitors and they left soon. ( ) 1. A. help B. hurt C. hit D. watch

( ) 2. A. know B. understand C. meet D. like

( ) 3. A. play with B. fight with C. talk with D. catch up with

( ) 4. A. voice B. shout C. noise D. laugh

( ) 5. A. morning B. afternoon C. evening D. night

( ) 6. A. go to work B. get up C. go to sleep D. open the shop

( ) 7. A. breakfast B. lunch C. supper D. meal

( ) 8. A. phone B. photo C. clock D. picture

( ) 9. A. go home B. go to bed C. go shopping D. have a seat

( ) 10. A. hello B. hi C. sorry D. nothing

四、阅读理解(共两篇文章,共20分)

A

The big red American car was much too wide for an English country road. When Jack saw it coming toward him, he stopped his own car at the side of the road to make room for it pass. The American car went slowly past, so close that he could see the driver?s face quite clearly.

“Where have I seen that face before?”he thought. “Wait a minute! I remember now. It was in the newspaper!” he took out the newspaper from his bag, and turned quickly to the middle page. There was a picture of the face in it. Y es, it had a large mouth and small ears, and his eyes were behind dark glasses.

“Wanted by the police,” read by Jack. “The City Bank will give a lot of money to anyone who helps the police to catch this man.”

“Call the police at once,” he said to himself. But a few minutes later, he was sad. “This man was caught this morning,” answered the police.

( ) 1. In which country didi the story happen?

A. It happened in America.

B. It happened in Australia.

C. It happened in England.

D. The story didn?t tell us.

( ) 2. Why did Jack stop his car?

A.He wanted to see who the driver was.

B.He didn?t want to pass by first.

C.The road was too narrow for the two cars to pass at the same time.

D.Because it was good for an Englishman to stop to let others go.

( ) 3. Who was wanted by the police in this passage?

A. Jack.

B. The driver in the American car.

C. Either Jack or the driver.

D. Neither Jack nor the American driver.

( ) 4. What did Jack do when he had read the newspaper again?

A. He drove to the City Bank.

B. He drove to the police.

C. He made a telephone call.

D. He stopped the American car.

( ) 5. Who caught the man with a large mouth and small ears?

A. The police.

B. Jack.

C. Nobody.

D. The American drive.

B

JOLIN Tsai (蔡依林), a famous singer, has become an English teacher! But she has published(出版) a new book, “Jolin?s English Diary Book”. It came out in Taiwan in March. Jolin is helping you learn English in a light hearted way and give you useful w ords for life outside your textbooks.

“I hope it?s a happy English book,” she said. “When you learn English in a fun way, you will keep on doing it.” This certainly doesn?t mean just reciting(背诵) words. Jolin has a lot of clever ways of learning. She likes to listen to English songs or find friends to talk to in English. She has been good at English since Grade 3 in primary school. Because of this, she hosted news programme on the radio herself.

Jolin knows it?s important to put English to good use. S o, in her English diaries, she wrote something about her everyday life, like study, fashion, travel and family. After each diary, she gives you lots of notes. Y ou can use them often, too! Jolin also asks you to keep diaries like her. ( ) 1. When did J olin Tsai publish “Jolin?s English Diary Book”?

A. In May.

B. In April.

C. In March.

D. In June.

( ) 2. She has been good at English .

A. since she became a famous singer

B. since she was in Grade 3

C. since she was in college

D. since she was 3 years old

( ) 3. Jolin thinks that is important for us to learn English.

A. just reciting words

B. hosting a programmer on the radio

C. studying in the classroom

D. putting English to good use

( ) 4. What?s the meaning of “light-hearted” in the passage?

A. 轻松愉快的

B. 漫不经心的

C. 迷迷糊糊的

D. 乐于助人的

( ) 5. From the passage we know that .

A.she is not only a famous singer but also an English teacher in a primary school

B.you don't have to keep English diaries

C.she teaches us how to be a famous singer in “Jolin?s English Diary Book”

D.Jolin Tsai shows us how to learn English in a fun way

9BUnit3单元测试答题卷

细心检查后,认真填写答案。后面的内容更要仔细哦!

Name: Class: Mark:

一、听力测试(30分)

My name is Wei Ke, and I live in Beijing. Beijing is in China. It is the

of China and is a very big city. you have a map, you will get

easily in it.

At the of Beijing is the Forbidden City. Although the Forbidden City is almost 600 years old, it is still very beautiful. The emperors of the Ming and Qing dynasties

to live there. It was changed to a in . Y ou will be by the beautiful of the buildings and the clothes and that the emperors used in the past.

Just next to the Forbidden City is Tian?anmen Square. The word …Tian?anmen?means …a

of heavenly peace?. It is the biggest square in the world and is often with tourists. Every day, many tourists gather there early in the morning so that they can

the of the . Local people like to take a walk and fly their there.

In the of Beijing is the Summer Palace. It is a famous Chinese-style garden

in a natural landscape. In the past, the emperors used to spend the there. The Summer Palace consists mainly of a hill and a lake, with bridges, pagodas and all over the area.

My attraction is the Great Wall. It is a long wall which more than 5,000 kilometres across northern China. It was built with stones and bricks in

times so that the northern border of the country could be protected. It is one of the wonders of the world. Y ou can its beauty and , although it is very

to climb it step step.

Come and visit my city!

三、完形填空(30分)

四、阅读理解(20分)

五、词汇考查(分为两个部分,共20分)

A. 用所给词的适当形式填空(10分)

1. Sanya is a famous tour city in the (south) part of China.

2. It is great fun (cycle) around Beijing beside the Y outh Park.

3. We can see hundrends of (shop) in the shopping district.

4. Most tourist enjoy going (ski) in Bears Town Ski Resort.

5. A talk on developmnents in science and technology

(give) in the school hall next week.

6. Mr Smith has (serve) in the army for thirty years.

B. 完成词组

六、句型转换(共20分)

1. We held the 2008 Olympic Games in Beijing. (改为被动语态)

The 2008 Olympic Games in Beijing.

2. Y ou can?t drive your car, but you can walk or ride a bicycle.(同义句)

Y ou can walk or ride a

bicycle your car.

3. Trees should be planted in spring. (改为一般疑问句)

Trees in spring?

4. The car hit the big tree yesterday, ?

(改为反意疑问句)

5. Who did she go shopping with? Can you tell us? (合并为一句)

Can you tell us shopping

?

6. Some scientists believe that the journey to Mars will be comfortable.(改为否定句) Some scientists believe that the journey to Mars

be comfortable.

7. Could I use a pencil in the test? (作出肯定回答)

, you .

8. We no longer use plastic bags for free. (改为同义句)

We don?t use plastic bags for free .

七、完成句子(10分)

1. 桂林位于中国的南部。

Guilin the south in China.

2. 我要动身去北京。

I am Beijing.

3. 南京在中国古代史上占有重要地位。

Nanjing an important in ancient Chinese history.

4. 布郎先生过去常乘火车旅行,因为他害怕乘飞机。

Mr Brown travle by train as he is

Flying.

9BUnit3单元测试第一

细心认真地去做,就一定可以做到最好!要加油哦!

Name: Class:

二、单项选择(20分)

( ) 1. Y ou can?t catch up with others you work hard.

A. until

B. after

C. unless

D. when

( ) 2. I have a raincoat an umbrella. That?s why I have to wait until the rain stops.

A. neither, nor

B. either, or

C. not only, but also

D. both, and

( ) 3. He is to carry the big box.

A. enough strong

B. strong enough

C. enough tall

D. tall enough

( ) 4. It is to cycle aroung Guilin.

A. a great fun

B. a fun

C. great fun

D. a great funny

( ) 5. I didn?t go to bed my mother came back last night.

A. until

B. if

C. since

D. while

( ) 6. The children without parents good care of by their teachers.

A. are taken

B. is taken

C. take

D. takes

( ) 7. of us knew anything about soul.

A. None

B. Nobody

C. No one

D. Nothing

( ) 8. there?s still a long way to go, we?d better continue to the end.

A. Although

B. Though

C. But

D. A and B

( ) 9. At the opening ceremony of the 2008 Beijing Olympic Games, Li Ning was to light the torch.

A. raised

B. risen

C. raising

D. rising

( ) 10. Mr King walks to work take some exercise at the same time.

A. so tht

B. in order to

C. in order that

D. such that

( )11. The American exchange students will leave Japan other Asian countries 28th May.

A. for, on

B. for, at

C. to, in

( ) 12. Have you heard of the scientist Julian?

A. call

B. calls

C. called

D. calling

( ) 13. is said that tourists visit Geyuan Garden every day.

A. That, thousands of

B. It, five thousand of

C. It, thousands of

D. This, three thousand of

( ) 14. – Excuse me, could you tell me ? -- Sorry, I?m new here, too.

A. where is the nearest bank

B. how can I get to the bank

C. which is the way to the bank

D. is there a bank near here

( )15. The eggs by the hen are still there.

A. lay, lying

B. lain, lay

C. laid, lying

D. laid, lie

( ) 16. He passed me a glass water.

A. fill with

B. filled of

C. full with

D. filled with

( ) 17. Y ou bought a new computer last week, you?

A. aren?t

B. don?t

C. didn?t

D. haven?t

( ) 18. – Would you mind my smoking here?

-- . Look at the sign. It says “No Smoking”.

A. It doesn?t matter

B. Y ou had beeter not

C. No, I don?t

( ) 19. I am sure that he is a lie.

A. saying

B. talking

C. speaking

D. telling

( ) 20. – What would some students like to do after finishing their education?

- They would like to start to work they needn?t depend on their parents completely.

A. as soon as

B. so that

C. before

D. while

三、完形填空(共2篇,20题,30分)

A

Allan comes from America. His father works in Beijing and his family come to 1 , too. The boy is studying in our school. He is only fourteen, but he is 2 than any othrer boy. So he sits in Row Six. Allan?s father has a 3 , but Allan comes to school by bus or by bike. Sometimes he 4 here. He likes playing football. So he?s 5 in our class. He can put the pictures and maps on the wall.

Allan can 6 English and French. And he knows a little Chinese,too. He often helps Miss Gao to 7 us English. After class we often talk in English or in Chinese. He tells us something about his country. It?s Mid-Autumn Day today. After 8 I ask the American boy to my home to have dinner. My parents give him 9 Moon-cakes. He likes them very much and eats a lot. He says they are 10 , so we give him some and ask him to take them to his parents before he leaves.

( ) 1. A. Canada B. America C. England D. China

( ) 2. A. longer B. taller C. younger D. older

( ) 3. A. car B. plane C. ship D. train

( ) 4. A. jumps B. sits C. runs D. stands

( ) 5. A. heavier B. the heaviest C. stronger D. the strongest

( ) 6. A. say B. speak C. read D. write

( ) 7. A. ask B. make C. teach D. count

( ) 8. A. breakfast B. work C. lunch D. school

( ) 9. A. much B. a lot of C. a lot D. one

( ) 10. A. bad B. delicious C. big D. round

B

Mr and Mrs King have lived in our town for nearly twenty years. They have a book shop by

the bus station. They?re polite to everyone and have a lot of friends. They often 1 the poor students and sell them some books cheaply. So there?re many young men in their shop. Of course people 2 them and their friends often visit them and 3 them. We can always hear their room is full of

4 and quarrel.

It was a Friday evening. Mr and Mrs King were going to have a picnic on the island the next

5 . it was little far from their town. So they had to

6 earlier than usual to catch a six o?clock train. After

7 a few friends came to see them while they were cooking some food for the picnic. Mr King and his wife had to stop to receivce them. They talked a lot and few of them looked at the

8 on the wall. It was late. Mr and Mrs King were anxious but they couldn?t tell the visitors about it. Mrs King thought for a few minutes and had an idea. She said to her husband, “Oh, it?s eleven o?clock!Y ou?d better stop talking, dear! Our guests are anxious to

9 !”

Mr King heard this and stood up, then he said 10 to the visitors and they left soon. ( ) 1. A. help B. hurt C. hit D. watch

( ) 2. A. know B. understand C. meet D. like

( ) 3. A. play with B. fight with C. talk with D. catch up with

( ) 4. A. voice B. shout C. noise D. laugh

( ) 5. A. morning B. afternoon C. evening D. night

( ) 6. A. go to work B. get up C. go to sleep D. open the shop

( ) 7. A. breakfast B. lunch C. supper D. meal

( ) 8. A. phone B. photo C. clock D. picture

( ) 9. A. go home B. go to bed C. go shopping D. have a seat

( ) 10. A. hello B. hi C. sorry D. nothing

四、阅读理解(共两篇文章,共20分)

A

The big red American car was much too wide for an English country road. When Jack saw it coming toward him, he stopped his own car at the side of the road to make room for it pass. The American car went slowly past, so close that he could see the driver?s face quite clearly.

“Where have I seen that face before?”he thought. “Wait a minute! I remember now. It was in the newspaper!” he took out the newspaper from his bag, and turned quickly to the middle page. There was a picture of the face in it. Y es, it had a large mouth and small ears, and his eyes were behind dark glasses.

“Wanted by the police,” read by Jack. “The City Bank will give a lot of money to anyone who helps the police to catch this man.”

“Call the police at once,” he said to himself. But a few minutes later, he was sad. “This man was caught this morning,” answered the police.

( ) 1. In which country didi the story happen?

A. It happened in America.

B. It happened in Australia.

C. It happened in England.

D. The story didn?t tell us.

( ) 2. Why did Jack stop his car?

E.He wanted to see who the driver was.

F.He didn?t want to pass by first.

G.The road was too narrow for the two cars to pass at the same time.

H.Because it was good for an Englishman to stop to let others go.

( ) 3. Who was wanted by the police in this passage?

A. Jack.

B. The driver in the American car.

C. Either Jack or the driver.

D. Neither Jack nor the American driver.

( ) 4. What did Jack do when he had read the newspaper again?

A. He drove to the City Bank.

B. He drove to the police.

C. He made a telephone call.

D. He stopped the American car.

( ) 5. Who caught the man with a large mouth and small ears?

A. The police.

B. Jack.

C. Nobody.

D. The American drive.

B

JOLIN Tsai (蔡依林), a famous singer, has become an English teacher! But she has published(出版) a new book, “Jolin?s English Diary Book”. It came out in Taiwan in March. Jolin is helping you learn English in a light hearted way and give you useful words for life outside your textbooks.

“I hope it?s a happy English book,” she said. “When you learn English in a fun way, you will keep on doing it.” This certainly doesn?t mean just reciting(背诵) words. Jolin has a lot of clever ways of learning. She likes to listen to English songs or find friends to talk to in English. She has been good at English since Grade 3 in primary school. Because of this, she hosted news programme on the radio herself.

Jolin knows it?s important to put English to good use. So, in her English diaries, she wrote something about her everyday life, like study, fashion, travel and family. After each diary, she gives you lots of notes. Y ou can use them often, too! Jolin also asks you to keep diaries like her. ( ) 1. When did Jolin Tsai publish “Jolin?s English Diary Book”?

A. In May.

B. In April.

C. In March.

D. In June.

( ) 2. She has been good at English .

A. since she became a famous singer

B. since she was in Grade 3

C. since she was in college

D. since she was 3 years old

( ) 3. Jolin thinks that is important for us to learn English.

A. just reciting words

B. hosting a programmer on the radio

C. studying in the classroom

D. putting English to good use

( ) 4. What?s the meaning of “light-hearted” in the passage?

A. 轻松愉快的

B. 漫不经心的

C. 迷迷糊糊的

D. 乐于助人的

( ) 5. From the passage we know that .

E.she is not only a famous singer but also an English teacher in a primary school

F.you don't have to keep English diaries

G.she teaches us how to be a famous singer in “Jolin?s English Diary Book”

H.Jolin Tsai shows us how to learn English in a fun way

9BUnit3单元测试答题卷

细心检查后,认真填写答案。后面的内容更要仔细哦!

Name: Class: Mark:

一、听力测试(30分)

My name is Wei Ke, and I live in Beijing. Beijing is in China. It is the

of China and is a very big city. you have a map, you will get

easily in it.

At the of Beijing is the Forbidden City. Although the Forbidden City is almost 600 years old, it is still very beautiful. The emperors of the Ming and Qing dynasties

to live there. It was changed to a in . Y ou will be by the beautiful of the buildings and the clothes and that the emperors used in the past.

Just next to the Forbidden City is Tian?anmen Square. The word …Tian?anmen?means …a

of heavenly peace?. It is the biggest square in the world and is often with tourists. Every day, many tourists gather there early in the morning so that they can

the of the . Local people like to take a walk and fly their there.

In the of Beijing is the Summer Palace. It is a famous Chinese-style garden

in a natural landscape. In the past, the emperors used to spend the there. The Summer Palace consists mainly of a hill and a lake, with bridges, pagodas and all over the area.

My attraction is the Great Wall. It is a long wall which more than 5,000 kilometres across northern China. It was built with stones and bricks in

times so that the northern border of the country could be protected. It is one of the wonders of the world. Y ou can its beauty and , although it is very

to climb it step step.

Come and visit my city!

三、完形填空(30分)

四、阅读理解(20分)

五、词汇考查(分为两个部分,共20分)

A. 用所给词的适当形式填空(10分)

1. Sanya is a famous tour city in the (south) part of China.

2. It is great fun (cycle) around Beijing beside the Y outh Park.

3. We can see hundrends of (shop) in the shopping district.

4. Most tourist enjoy going (ski) in Bears Town Ski Resort.

5. A talk on developmnents in science and technology

(give) in the school hall next week.

6. Mr Smith has (serve) in the army for thirty years.

B. 完成词组

六、句型转换(共20分)

1. We held the 2008 Olympic Games in Beijing. (改为被动语态)

The 2008 Olympic Games in Beijing.

2. Y ou can?t drive your car, but you can walk or ride a bicycle.(同义句)

Y ou can walk or ride a

bicycle your car.

3. Trees should be planted in spring. (改为一般疑问句)

Trees in spring?

4. The car hit the big tree yesterday, ?

(改为反意疑问句)

5. Who did she go shopping with? Can you tell us? (合并为一句)

Can you tell us shopping

?

6. Some scientists believe that the journey to Mars will be comfortable.(改为否定句) Some scientists believe that the journey to Mars

be comfortable.

7. Could I use a pencil in the test? (作出肯定回答)

, you .

8. We no longer use plastic bags for free. (改为同义句)

We don?t use plastic bags for free .

七、完成句子(10分)

1. 桂林位于中国的南部。

Guilin the south in China.

2. 我要动身去北京。

I am Beijing.

3. 南京在中国古代史上占有重要地位。

Nanjing an important in ancient Chinese history.

4. 布郎先生过去常乘火车旅行,因为他害怕乘飞机。

Mr Brown travle by train as he is

Flying.

苏教版科学各单元测试题

苏教版六年级科学上册第一单元测试题 一、我会填空(每空 0.5分,共 10分) 1、细菌、霉及病毒,要用显微镜才能看清楚,所以通常把它们称作 _________。 2、在适宜的温度下,_________会使牛奶发酵变成酸奶。 3、________是构成生物体的基本单位。。 4、青霉菌分泌出的某种物质能杀死细菌,这种物叫 _______。 5、食物在______和_______的环境条件下,容易发霉。 6、_________是构成生物体的基本单位,皮肤、骨骼、肌肉、血液和脂肪等 都是由这种微小结构组成。 7、生物体的生长发育过程就是______的生长发育过程;生物体的衰老、死亡 也是由_____ _的衰老、死亡造成的。 8、物体在 ______和 _____的环境条件下,容易发霉;防止发霉的方法有: ______、________、_______、__________。 9、细菌体积 _________,几万个细菌合在一起才有头发那么粗,它们有三种 形态: ________、________、__________。 10、绝大多数的微生物只有在 ________下才能看到。 二、我能判断(5分) ()1、在空气中、水中、地下、动植物和人体里,都有微生物。 ()2、所有的微生物都是有害的,如霉菌、病毒和孢子虫等。 ()3、大多数细菌对人类是有害的。 ()4、发霉主要是霉菌造成的,霉菌不是微生物的一种。 ()5、霉菌引起疾病,对人类只有危害。 ()6、电冰箱能保鲜食物,主要是利用它产生较冷的环境,创造使食物 不容易发霉的条件。 ()7、服用抗生素,可以有效地治疗因病毒导致的疾病。 ()8、植物、动物的细胞是完全相同的。 ()9、注射疫苗是预防传染病的一种方法。 ()10、有的微生物是有生命的,而有的微生物是无生命的。 三、我能选择(5分) 1、下面不是水滴里的微生物是( A 、鼓藻 B 、草履虫 C 、水蚤 D 、青霉菌 2、下列属于微生物的是( A 、蜂鸟 B 、砂粒 C 、病毒 D 、树叶 3、晚上刷牙的主要目的是( A 、牙齿变白 B 、容易睡觉 C 、清理微生物 D 、促进生长 4、对于微生物的特点,下列叙述不正确的是( A 、种类繁多 B 、生长繁殖慢 C 、分布广泛 D 、容易变异 ) )。 )。 )。

面向对象存储oos教程说明

O O S客服脚本 1、OOS基本知识 什么是OOS 面向对象存储(Object-Oriented Storage,OOS)是中国电信为客户提供的一种海量、弹性、高可用、高性价比的存储服务,是一种开放式的存储服务。 OOS基本概念 面向对象存储的主要概念有:Account(账户)、Service(服务)、Object(对象)和Bucket(对象容器)。它们之间的关系如下图所示。在使用OOS之前,首先需要在注册一个账号(Account),注册成功之后,OOS会为该账号提供服务(Service),在该服务下,用户可以创建1个或多个对象容器(Bucket),每个对象容器中可以存储不限数量的对象(Object)。 Account 在使用OOS之前,需要在注册一个账号(Account)。注册时邮箱、密码和联系方式、用户名是必填项。注册成功之后,用户可以用该账号登录并使用OOS服务。 Service Service是OOS为注册成功的用户提供的服务,该服务为用户提供弹性可扩展的存储空间及上行和下行流量。用户可以对存储空间和能力进行管理,例如,文件的上传下载、文件的保存、存储空间的访问控制等。 Bucket Bucket是存储Object的容器。面向对象存储的每个Object都必须包含在一个Bucket 中。Bucket不能嵌套,每个Bucket中只能存放Object,不能再存放Bucket。 每个用户最多可以建立10个Bucket,并且在创建Bucket时需要设定其操作权限。用户只有对Bucket拥有相应的权限,才可以对其进行操作,这样保证了数据的安全性,

防止非授权用户的非法访问。 Bucket的命名规范如下: 对象容器(Bucket)的命名规范是: Bucket名称必须全局唯一 Bucket名称长度介于3到63字节之间 Bucket名称可以由一个或者多个小节组成,小节之间用点(.)隔开 各个小节需要:只能包含小写字母、数字和短横线(-) 必须以小写字母或者数字开始 必须以小写字母或者数字结束 Object 用户存储在OOS上的每个文件都是一个Object。文件可以是文本、图片、音频、视频或者网页。OOS支持的单个文件的大小从1字节到5T字节。 用户可以上传、下载、删除和共享Object。此外用户还可以对Object的组织形式进行管理,将Object移动或者复制到目标目录下。 1.3OOS有什么特点 (1)弹性扩展,按需付费 对用户来说,OOS是一种低成本的存储资源,并且可以无限扩容,用户只需根据所使用的存储量进行付费即可,节约了成本。 (2)安全可靠 OOS采用多级加密数据,对用户数据进行分片加密保存,保证用户数据的安全性。(3)性能可靠 OOS采用高可用的服务集群及动态负载均衡,保证用户顺利度过访问高峰。

2020年高考备考方案

2020年高考备考方案 语文 2020一轮复习规划 高考语文考查考生识记、理解、分析综合、鉴赏评价、表达应用和探究六种能力,表现为六个层级。考试内容分为阅读和表达两个部分。阅读部分包括现代文阅读和古诗文阅读,表达部分包括语言文字应用和写作。考试的各部分内容均可有难易不同的考查。 针对以上内容,在2020年语文考试的第一轮复习中,主要需要注意以下几点: 1.理清知识系统。这有利于同学们明确复习的目标,从而形成知识网络,并在答题时更好的寻找解题依据。语文知识的大系统包括语音知识系统、词及短语系统、单复句知识系统、修辞知识系统、标点知识系统、现代文体知识系统、写作知识系统和文言文知识系统等。而小系统就是每一个语文知识点的性质、分类、意义或用法。第一轮复习时要有意地将所复习的知识点和其所属的知识系统联系起来。 2.要注重利用教材。因为教材是教学的依据,教材中的主干就是高考考查的核心。像一些文言文、诗歌、文学常识等就是完全考查教材中的内容。而对教材加以熟悉也有利于学生对知识的积累和能力的培养。 3.要明确语文学科的特点,调整心态。语文不同于其他学科,成绩的提高需要长时间的坚持。这就要求学生要调整好学习的心态,不能因

为短期内成绩没有提高而放弃。只要根据老师的要求,学习时多加些细心和耐心,成绩的提高就会指日可待。 4.语文考试内容分为阅读和表达两个部分。阅读部分包括现代文阅读和古诗文阅读,表达部分包括语言文字应用和写作。要根据不同的题型做专项训练,这种训练更加有针对性,可以通过一定时间的训练更牢固的掌握这一知识点的解题思路和方法,然后再进行整合练习,这样做会事半功倍。 总之,第一轮复习需要同学们投入大量的时间,不断积累基础知识和解题方法,相信同学们只有更加耐心、细心的了解教材,大量训练,勤于思考总结,才能更快的提高成绩,并为后面的几轮复习打好基础。 数学 2020一轮复习规划 1.拓实基础,强化通性通法 高考对基础知识的考查既全面又突出重点。抓基础就是要重视对教材的复习,尤其是要重视概念、公式、法则、定理的形成过程,运用时注意条件和结论的限制范围,理解教材中例题的典型作用,对教材中的练习题,不但要会做,还要深刻理解在解决问题时题目所体现的数学思维方法. 2.认真阅读考试说明,减少无用功 在平时练习或进行考试时,要注意培养考试心境,养成良好的习惯.首先认真对考试说明进行领会,并要按要求去做,对照说明后的题例,体会说明对知识点是如何考查的,了解说明对每个知识的要求,千万

苏教版六年级下册科学各单元测试卷

六年级下册科学第一单元测试卷 一、填空题:(每空1分,共27分) 1、青春期男女()最先出现快速生长。 2、()是我们由()向()过度的时期.女孩大约从(10)岁开始,将陆续进入青春期;在这个时期,我们的()、()都发生着巨大的变化。 3、人的一生大约可分()、()、 () 三个阶段。 4、人的一生要经过()、()、()、()、()、()、()七个时期。 5、青春期出了身高突增之外,另一特点就是()开始。 6、人的一生的各个时期中,需要别人照顾的时期有()和()。 7、()和()两项数据是儿童生长发育的重要指标,它们可以反映儿童的营养状况。 8、科学用脑的五要素是()、()、()、()、()。 二、判断题:(每题2分,共20分) ()1、一个人的成长与成熟意味着他(她)将要更加自觉地承担起更多的责任。

()2、进入青春期我们要尽量避免穿高跟鞋。 ()3、吸烟和酗酒不仅是少年健康的大敌,还会养成不良习气。()4、青春发育期是人体的第一快速增长期。(第三快速增长期) ()5、一般来说,青春期的发育男生早于女生。 ()6、体育锻炼占用时间,会影响学习和智力发育。 ()7、在青春期,男生女生德身体都会发生许多变化,这是正常的生理现象。 ()8、为了促进自己的生长发育,每天睡眠时间越多越好。()9、人只要吃得好,身体就能健康地生长发育。 ()10、养成良好的生活习惯有益于我们的身体健康。 三、选择题:(每题2分,共20分) 1、对于青春期的心理特点,下列叙述不正确的是()。 A、性意识骤然增长,易对异性产生好感; B、智力水平迅猛提高; C、兴趣爱好日益广泛,求知欲和好奇心强烈; D、身体形态发生巨大变化 2、我们已经跨入青春期,每天需要保证()小时的睡眠。 A、8 B、9 C、10 D、11 3、在成长过程中,我们的身体会发生一些变化,对待这些变化不正

高二化学上学期期中测试

高中学生学科素质训练系列试题 高二化学上学期期中测试 [原人教版] 1-2章 本试题分为第Ⅰ卷和第Ⅱ卷两部分,第Ⅰ卷为选择题,共45分;第Ⅱ卷为非选择题,共55分。满分100分,考试时间为90分钟。 第Ⅰ卷(选择题,共45分) 一、选择题(每题3分,共45分) 1.运动会上使用的发令枪,所用火药的成份是氯酸钾和红磷,经撞击发出响声并同时产生白色烟雾,此时发生的反应为:5KClO3 + 6P == 3P2O5 +5KCl,则下列有关叙述错误的是 ()A.上述反应中消耗3molP时,转移15mol电子 B.上述反应中氧化剂和还原剂的物质的量之比是5:6 C.产生白色烟雾的原因是生成的P2O5为白色小颗粒(烟)吸水性很强,吸收空气中水分,部分生成磷酸小液滴(雾) D.因红磷和白磷互为同素异形体,所以在此火药中可以用白磷代替红磷 2.德国科学家日前利用卫星数据和一种先进的仪器,绘制了一幅地球上空二氧化氮的分布图。从科学家绘制的二氧化氮分布图看,欧洲和北美洲的一些大城市上空二氧化氮浓度很高。近几年,珠江三角洲地区也有类似的情况,其原因是这些地区的:()A.硝酸工业发达B.雷雨天气较多 C.燃料以煤为主D.机动车辆过多 3.诺贝尔化学奖授予德国化学家Gerhard Ertl,以表彰他对固体表面化学研究过程中的重大发现。使CO、NO x等在铂表面发生化学反应转变成无毒气体,以减少汽车尾气中有毒气体的排放,正是此项研究的重要应用之一。下列有关说法不正确 ...的是()A.CO在铂表面被氧化生成CO2,铂起催化作用 B.汽车尾气中NO x在铂表面发生反应的产物是N2 C.CO在铂表面可能和O2、NO x反应 D.NO x、CO、CO2均能与人体中的血红蛋白结合 4 在热的浓硝酸中加入铜粉和过量铁粉,充分反应后,溶液中大量存在的金属阳离子是 ()A.Fe2+B.Fe3+C.Fe2+、Fe3+D.Fe3+、Cu2+ 5.实验室里常见到如图所示的仪器,该仪器为两头密封的玻璃管,中间带有一根玻璃短柄。

人教版三年级科学单元测试题(完整版)

2020年秋期三年级科学学习评价测试题(一) 第一单元水 等级 ______ 一、我来填空: 1.________ 冰是_____________ 态的水,水是_____ 态,水蒸气是的水。 2.食盐在水中溶解的速度与_____ 的高低以及是否_____ 有关。 二、我来选择:把正确答案番号填入下表,未填入方框不得分。 1.把湿衣服晾在太阳下,过一会儿就干了,是因为 A.太阳把水吸收了 B.水变成水蒸气跑到空气中了 C.水掉到地上了 2.在屮乙两个大小相同的杯子里加入等量的水,甲用塑料膜盖好杯口并扎紧,乙不盖,两杯均放在通风向阳无雨处,两天后 A.甲杯中的水更少 B.乙杯中的水更少 C.两杯一样多 3.—般情况下,在给水加热一段时间后,水会沸腾, 这时的温度是

A.约100°C B.—定是100°C 4.水变成水蒸气后,体积会 A.变大 B.变小 5.水通常会在什么温度时开始结冰 A. O O C B. IOO O C 6.水结冰后,体积会 C.不确定C.不确定C. 50°C C.不确定 7.试管里的冰融化成水,液面会

10. 把食盐和小苏打溶解在相同的水中 A.食盐溶解得多些 B.小苏打溶解得多些 C.无法比较 11. 可以把沙子和食盐分离的方法是 A. 用筛子筛 B.用磁铁吸 C.放入水中过滤后蒸发 12.分离食盐和水 时, 应在什么时候熄灭酒精灯火焰 A.水干后 B.当有白色颗粒出现时 C.等酒精灯自然熄灭 13.乒乓球被踩瘪 了, 怎样能恢复原状 A.再踩一下 14.撕纸和捏橡皮泥 B.放入热水中 C.不要了,重新买新的 A ?只是形状变化了,本质上没变 B. 纸和橡皮泥巴本质上发生了变化,不再是纸和橡皮泥了 C. 一点变化都没有 15.天上有下不完的雨,是因为 A. 天上的水很多 B. 水通过三态变化在不断循环 C. 天上的雨会下完的 题号 1 2 3 4 5 6 7 8 9 10 三.我来判断:对的打错的打X, 答案填入方框,否则不得分。 A ?上升 B ?下降 C.不变 8?水和冰的变化中,起作用的是 A.温度的变化 B.容器的变化 9 ?杯中糖块溶解的最快的是 C.体积的变化 IOr 4(rc

面向对象系统设计(超经典的指导手册)

面向对象系统设计 当你阅读到这里时,我假设你已经理解了面向对象的基本概念,初步掌握了的UML语言。 第三章、架构设计 3.1 架构设计原则 系统设计的第一步就是确定软件的架构,它决定了各子系统如何组织以及 如何协调工作。架构设计的好坏影响到软件的好坏,系统越大越是这样。进行架构设计时,有两个重要的原则可以遵循: 一、分层。 将系统分层是简化系统的好方法,而且已经得到了很好的证实,如OSI 七 层模型网络协议,数据库管理系统的外模式、模式、内模式等。分层的思路是将系统按功能职责进行划分,将同一类职责的功能抽象为一层。在信息系统中软件架构通常采用典型的三层结构: 1、表示层――用户界面。 2、业务层――业务处理流程。 3、数据层――持久化存储。 与传统的两层结构相比,它最大的特征是将业务层独立了出来,从而提高 了业务层的可复用性。在两层结构中,用户界面和业务处理流程放在一起,因此无法直接复用业务处理的相关功能,也无法将业务处理功能进行灵活的部署。在三层结构中,表示层只处理用户界面相关的功能,业务层专心处理业务流程,可以对业务层进行灵活的部署,开发时也便于业务处理的开发和用户界面的开发同时进行。 当然也可以分为更多的层,关键是尽量提高层内各功能的内聚,降低各层 之间的耦合。 二、各层之间通讯。 OSI 中要求高层只能调用它的下一层提供的接口,我们设计接口时也尽量 遵守这样的约束,例如典型的三层结构的访问关系为: 数据层在业务层中是可见的,业务层在表示层中是可见的,反之则不可见。为什么在业务层中不能直接访问表示层呢?因为业务层要相对独立,它不能依赖于任何表示层,以至于一个业务层可以对应多个表示层。业务层可以间接与表示层通讯,这种通讯方式根据实际需要来确定。 3.2 信息系统的架构设计 下面我们将根据架构设计原则和信息系统原理来建立一个信息系统的架构设计模型。将信息系统中比较关心的对象分层,可分为三层:用户界面层、业务层、数据访问层,再把各层中的一些公共部分提出来:权限管理、异常处理,这样得到包图如下:

高二化学《氮族元素》测验题答案

高二化学《氮族元素》单元测验试卷 姓名 班级 座号 成绩 第I 卷(60分) 一. 选择题(本题包括20小题,每小题3分,共60分。每小题只有一个选项符合题意) 1、造成光化学烟雾的有害气体主要是( ) A .CO 2、碳氢化合物 B .NO 和NO 2 C .SO 2 D.氟氯烃 2、下列关于氮族元素的说法中不正确的是( ) A 、原子的最外层均有5个电子,最高价均为+5价 B 、非金属性比同周期的氧族元素和卤族元素弱 C 、原子半径比同周期的氧族元素、卤族元素小 D 、稳定性:NH 3 > PH 3 3、氮气能大量存在于空气中,且能维持含量基本稳定的主要原因是( ) A .氮分子结构稳定 B .氮气难溶于水 C .氮分子是非极性分子 D .氮气比空气轻 4、下列互为同素异形体的是( ) A. H SO H SO 2423和 B. 红磷和白磷 C. H O D O 22和 D. O O 18 8168和 5、将氨气通过灼热的氧化铜后,发现氧化铜变红色,此外还收集到一种单质气体,这种气体估计应是( ) A. O 2 B. H O 2 C. NO D. N 2 6、在8363242NH Cl NH Cl N +=+反应中,若有1023.g NH 被氧化,则反应用去的氯气在标准状况下体积为( ) A. 5.04L B. 6.72L C. 20.16L D. 40.32L 7、有一种盐A 和KOH 反应,生成有刺激性气味的气体B ,B 经过一系列氧化再溶于水可得到 酸C ,B 和C 反应又可以生成A ,则A 是 ( ) A .NH 4Cl B .(NH 4)2SO 4 C .NH 4NO 3 D .NH 4HCO 3 8、用以下三种途径来制取相同质量的硝酸铜:○ 1铜与浓硝酸反应;○2铜与稀硝酸反应;○3铜与氧气反应生成CuO ,CuO 再与稀硝酸反应。下列有关叙述不正确的是( ) A . 所消耗的硝酸的量:①>②>③ B .对环境造成的危害,③最小 C .因铜与浓硝酸作用最快,故制取硝酸铜的最佳方案是① D .三种途径所消耗的铜的质量相等

小学三年级下册科学单元测试题及答案全套

小学三年级下册科学单元测试题及答案全套 一、单项选择题. 1、植物的( C )能够吸收水分和矿物质.还能将植物固定在土壤中. A、绿叶 B、花 C、根 D、果实 E、茎 2、植物的( A )可以制造植物生长所需要的养料. A、绿叶 B、花 C、根 D、果实 E、茎 3、植物的( E )具有支撑植物体及运输水分和养料的作用. A、绿叶 B、花 C、根 D、果实 E、茎 4、有些植物可以用根、茎、叶繁殖后代.但是我们熟悉的绿色开花植物几乎都是从(E ) 开始他们的新的生命的. A、根 B、茎 C、叶 D、花 E、种子 5、植物的这些养料是由植物绿色的( C )依靠阳光提供的能量.利用二氧化碳喝水制成 的. A、根 B、茎 C、叶 D、花 6、1771年.英国科学家普利斯特利发现( C )可以更新空气.后来.实验证明这是植 物光合作用释放氧气的结果. A、草本植物 B、木本植物 C、绿色植物 D、开花植物 7、植物的茎能( D )将根吸收的水分和矿物质运输到物体的各个部分;( B )将 绿叶制造的养料运输到植物体的各个部分. A、从左向右 B、从上向下 C、从右向左 D、从下向上 8、凤仙花又叫指甲花、芨芨草、急性子.是一种常见的( C ). A、开花植物 B、常绿植物 C、草本植物 D、木本植物 9、凤仙花等植物的茎垂直地面向上生长.这样的茎叫(D );牵牛花的茎缠绕在其他 物体上向上生长.这样的茎叫( C );葡萄的茎攀缘在其他物体上生长.叫(B ); 红薯的茎平卧地面蔓延生长.叫( A ). A、匍匐茎 B、攀缘茎 C、缠绕茎 D、直立茎 二、多项选择题.新课标第一 1、绿色开花植物生长一般都要经历一定的生命周期:(ABCD) A、种子萌发 B、幼苗生长 C、营养生长 D、开花结果 2、绿色开花植物有(ABCDEF )等器官. A、根 B、茎 C、叶 D、花 E、果实 F、种子 3、植物在生长过程中需要(ABDC )等条件. A、阳光 B、土壤 C、适宜的水分 D、温度 4、植物在它们的生命过程中都要经历(ABCDE)的过程. A、出生 B、成长 C、繁殖 D、衰老 E、死亡 5、做好凤仙花播种前的准备工作:( ABCD ) A、准备一些凤仙花的种子 B、查阅凤仙花的有关资料 C、了解凤仙花的栽培方法 D、准备播种所需要的材料和工具 6、种植植物是一项长期的观察研究活动.需要做好(ABC )等多项工作. A、管理 B、观察 C、记录 D、播种 7、做观察记录要注意将播种凤仙花、芽出土、出现花芽、开花、果实成熟的准确时间记录下来.还可以用( BCD )等方式写观察日记. A、数字 B、文字 C、图画 D、照片 三、填空题. 1、一颗种子在(适宜)的条件下能够萌发、长成一棵植物.这棵植物又能结出许多种子. 植物的物种就是这样不断繁衍的. 2、植物的(器官)有自己特殊的结构.这种结构与它们在植物的生长过程中所承担的功能 相适应.

氮族元素习题及答案

第十五章氮族元素一选择题 1. 氮气制备的方法是() A. 将硝酸氨NHNO加热 B. 将亚硝酸氨NHNO加热 4342 C. 将氯气与氨气混合 D. B和C 2. 下列化合物中与水反 应放出HCl的是() A. CCl B. NCl C. POCl D. ClO 433273. NO溶解在NaOH溶液中可得到() 2A. NaNO和 HO B. NaNO、O和HO 22222C. NaNO、NO和 HO D. NaNO、NaNO和HO 3252322 4. 硝酸盐加热分 解可以得到单质的是() A. AgNO B. Pb(NO) C. Zn (NO) D. NaNO 332323 5. 下列分子中具有顺磁性的是() A. NO B. NO C. NO D. NO 22234 6. 下列分 子中,不存在离域键的是() (吉林大学《无机化学例题与 习题》) 3 A. HNO B. HNO C. NO D. N322 3 7. 分子中含d—p反馈键的是() (吉林大学《无机化学例题与 习题》) A. HNO B. HNO C. HPO D. NH 32323 8. 下 列物质中酸性最强的是() A. NH B. NHOH C. NH D. HN 242 33 9. 下列酸中为一元酸的是() (吉林大学 《无机化学例题与习题》) A. HPO B. HPO C. HPO D. HPO 427323334 10. 下列各物质按酸性排列顺序正确的是() (吉林大学《无机化学例题与习题》) A. HNO>HPO>HPO B. HPO>HPO>HNO 234427427342C. HPO>HNO>HPO D. HPO>HPO>HNO 427234344272 11. 下列物质中,不溶于氢氧 化钠溶液的是()(吉林大学《无机化学例题与习题》) A.

Java面向对象程序设计单元测试卷三

《面向对象程序设计(Java)》单元测试3 班级姓名 一填空与选择题 1.Java中,InputStream和OutputStream是以()为数据读写单位的输入输出流的基类,Reader和Writer是以()为数据读写单位的输入输出流的基类。 2.用来创建以字节方式对文件进行读写的流是()类和()类。 3.从对异常的处理策略上,Java把异常分为非检查型异常和检查型异常,非检查型异常包括()异常和()异常,编译时编译器不对非检查型异常进行检查;对检查型异常,编译器要求要么对异常进行()处理,要么进行()处理。 4.建立文件"file.txt" 的字节输入流的语句是:() A. InputStream in=new FileInputStream("file.txt"); B. FileInputStream in=new FileInputStream(new File("file.txt")); C. InputStream in=new FileReader("file.txt"); 5.创建一个DataOutputStream 的语句是:() A. new DataOutputStream("out.txt"); B.new DataOutputStream(new File("out.txt")); C. new DataOutputStream(new Writer("out.txt")); D. new DataOutputStream(new OutputStream("out.txt")); E. new DataOutputStream(new FileWriter("out.txt")); F. new DataOutputStream(new FileOutputSream("out.txt")); 6.下面语句正确的是:() A. RandomAccessFile raf=new RandomAccesssFile(“myfile.txt”,”rw”); B. RandomAccessFile raf=new RandomAccesssFile(new DataInputStream()); C. RandomAccessFile raf=new RandomAccesssFile(“myfile.txt”); D. RandomAccessFile raf=new RandomAccesssFile(new File(“myfile.txt”)); 7.下列创建InputStreamReader对象的方法中哪些是正确的方法? A. new InputStreamReader(new FileInputStream(“data”)); B. new InputStreamReader(new FileReader(“data”)); C. new InputStreamReader(new BufferedReader(“data”)); D. new InputStreamReader(“data”); E. new InputStreamReader(System.in); 二.编一程序,从键盘输入一个实数,求其平方根并输出。要求对输入为非数字的数据时所产生的异常进行捕获处理,并给出提示信息。

(完整word版)大学无机化学第十四章试题及答案

第十五章氮族元素 总体目标: 1.掌握氮和磷单质、氢化物、卤化物、氧化物、含氧酸及其盐的结构、性质、制备和用途 2.了解砷、锑、铋单质及其化合物的性质递变规律 各节目标: 第一节氮的单质 掌握N 2 的结构;氮与非金属、金属的反应;氮气的实验室制法和工业制法 第二节氮的成键特征 通过氮的价层电子结构,了解它的成键特征 第三节氮的氢氧化物 1.掌握NH 3 的工业制法和实验室制法以及它的结构 2.了解NH 3 的物理性质;掌握它的配位反应、取代反应、氨解反应和氧化反应以及用途;铵盐的水解性和热稳定性。 3.了解联氨、羟胺、叠氨酸的结构和性质 第四节氮的氧化物 1.掌握氮元素的自由能—氧化图 2.掌握氮的氧化物(N 2O、NO、N 2 O 3 、NO 2 、N 2 O 4 、N 2 O 5 )的结构和重要性质 3.了解HNO 2 及其盐的制备、结构、性质 4.掌握HNO 3 及其盐的结构和性质;硝酸盐热分解的一般规律;王水的成分和性质5.掌握硝酸盐和亚硝酸盐的鉴别方法 第五节磷单质 1.掌握磷原子的价电子层结构;磷的成键特征 2.掌握磷的工业制法、同素异形体、化学性质及用途 第六节磷的化合物 1.掌握磷化氢的制备方法和性质 2.掌握P 4O 6 、P 4 O 10 和H 3 PO 4 的结构、制备、性质和用途;磷酸盐的溶解性 3.了解次磷酸、亚磷酸、焦磷酸、偏磷酸化学式的书写、命名和主要性质;卤化磷、硫化磷的重要性质

第七节砷、锑、铋 了解砷、锑、铋单质及其化合物的性质递变规律 习题 一选择题 1. 氮气制备的方法是() A. 将硝酸氨NH4NO3加热 B. 将亚硝酸氨NH4NO2加热 C. 将氯气与氨气混合 D. B和C 2. 下列化合物中与水反应放出HCl的是() A. CCl4 B. NCl3 C. POCl3 D. Cl2O7 3. NO2溶解在NaOH溶液中可得到() A. NaNO2和H2O B. NaNO2、O2和H2O C. NaNO3、N2O5和H2O D. NaNO3、NaNO2和H2O 4. 硝酸盐加热分解可以得到单质的是() A. AgNO3 B. Pb(NO3)2 C. Zn(NO3)2 D. NaNO3 5. 下列分子中具有顺磁性的是() A. N2O B. NO C. NO2 D. N2O3 π离域键的是()(吉林大学《无机化学例题与习题》) 6. 下列分子中,不存在4 3 N A. HNO3 B. HNO2 C. N2O D. - 3 7. 分子中含d—p反馈π键的是()(吉林大学《无机化学例题与习题》) A. HNO3 B. HNO2 C. H3PO2 D. NH3 8. 下列物质中酸性最强的是() A. N2H4 B. NH2OH C. NH3 D. HN3 9. 下列酸中为一元酸的是()(吉林大学《无机化学例题与习题》) A. H4P2O7 B. H3PO2 C. H3PO3 D. H3PO4 10. 下列各物质按酸性排列顺序正确的是()(吉林大学《无机化学例题与习题》) A. HNO2>H3PO4>H4P2O7 B. H4P2O7>H3PO4>HNO2 C. H4P2O7>HNO2>H3PO4 D. H3PO4>H4P2O7>HNO2 11. 下列物质中,不溶于氢氧化钠溶液的是()(吉林大学《无机化学例题与习题》) A. Sb(OH)3 B. Sb(OH)5 C. H3AsO4 D. Bi(OH)3

近三年高考理综(全国卷2)化学试题分析与启示

近三年高考理综(全国卷2)化学试题分析与启示2014、2015、2016年考点对比分析

二、试题考查特点分析 从近三年高考理综化学卷的对比分析中可以看出,试题遵循新课标高考《考试大纲》和《考试说明》的要求,在继承的基础上有创新,在创新中立足基础,注重能力。在注重对化学学科中的基础知识、基本能力和重要方法考查的同时,突出了对信息整合能力、问题解决能力、计算能力的考查。主要表现在: 1、注重对化学基础知识、主干知识的考查,保持试题稳定 近三年高考全国理综Ⅱ卷化学试题突出了对中学化学核心内容和主干知识的考查,涉及的知识均是中学化学基础知识,尽可能地突出所考查范围的主干知识,题目考查的知识点明确、具体。试题虽然在解答思路和思维层次上要求较高,但知识均源于课本,试题的落脚点比较基础,即高起点低落点。纵观近三年的试题变化,物质的分离、提纯;同分异构体;元素构、位、性关系;电化学;化学反应速率与化学平衡;有机物的结构与性质;化学反应方程式(包括离子方程式、电极反应式);等考点几乎是每年必考的内容,基本涵盖了高中化学的核心内容和主干知识。试题遵循《考试大纲》和《考试说明》的内容和能力要求,体现了“源于教材,高于教材,理在书内,题在书外”的命题原则。 2、突出对能力的考查,注重知识迁移知识迁移 高考作为选拔性考试主要体现在能力考查上,为了选拔具有学习潜能和创新精神的考生,考试以能力测试为主导,在测试考生进一步学习所必需的知识、技能和方法的基础上,全面检测考生的化学学科素养。近三年高考试题在能力测试方面突出下列特色: (1)注重计算能力的考查 近三年高考全国理综卷化学试题均对考生计算能力进行了考查,且加大了考查力度。命题时没有刻意设计一些“玩味”计算,体现基本化学计算思想和化学计算的实用价值。 (2)注重考查考生对图表信息的分析能力和数据处理能力 中学化学中很多材料和事实都可以通过图表信息呈现,如化学反应速率、化学平衡、电解质溶液的导电性、溶解度、酸碱中和滴定中的pH等。图象和表格中含有大量的信息,信息中有的是隐性的,考生必须对观察结果进行分析加工,才能发现其中所反映出来的规律,提取所需要的信息。例2014年26、28题;2015年26、27题都是如此。 (3)注重阅读能力的考查 《考试大纲》和《考试说明》中对考生提取和整合信息的能力提出了要求。近三年高考试题对此都有加强,如果考生不能根据试题提供信息对题中条件进行有效的分析和整合,发散联想基本知识点,对该问就不能做到准确解答。

大学无机化学第十四章试题及答案

第十五章氮族元素 总体目标: 1、掌握氮与磷单质、氢化物、卤化物、氧化物、含氧酸及其盐的结构、性质、制备与用途 2、了解砷、锑、铋单质及其化合物的性质递变规律 各节目标: 第一节氮的单质 掌握N 2 的结构;氮与非金属、金属的反应;氮气的实验室制法与工业制法 第二节氮的成键特征 通过氮的价层电子结构,了解它的成键特征 第三节氮的氢氧化物 1、掌握NH 3 的工业制法与实验室制法以及它的结构 2、了解NH 3 的物理性质;掌握它的配位反应、取代反应、氨解反应与氧化反应以及用途;铵盐的水解性与热稳定性。 3、了解联氨、羟胺、叠氨酸的结构与性质 第四节氮的氧化物 1、掌握氮元素的自由能—氧化图 2、掌握氮的氧化物(N 2O、NO、N 2 O 3 、NO 2 、N 2 O 4 、N 2 O 5 )的结构与重要性质 3、了解HNO 2 及其盐的制备、结构、性质 4、掌握HNO 3 及其盐的结构与性质;硝酸盐热分解的一般规律;王水的成分与性质5、掌握硝酸盐与亚硝酸盐的鉴别方法 第五节磷单质 1、掌握磷原子的价电子层结构;磷的成键特征 2、掌握磷的工业制法、同素异形体、化学性质及用途 第六节磷的化合物 1、掌握磷化氢的制备方法与性质 2、掌握P 4O 6 、P 4 O 10 与H 3 PO 4 的结构、制备、性质与用途;磷酸盐的溶解性 3、了解次磷酸、亚磷酸、焦磷酸、偏磷酸化学式的书写、命名与主要性质;卤化磷、硫化磷的重要性质

第七节砷、锑、铋 了解砷、锑、铋单质及其化合物的性质递变规律 习题 一选择题 1、氮气制备的方法就是( ) A、将硝酸氨NH4NO3加热 B、将亚硝酸氨NH4NO2加热 C、将氯气与氨气混合 D、B与C 2、下列化合物中与水反应放出HCl的就是( ) A、CCl4 B、NCl3 C、POCl3 D、Cl2O7 3、NO2溶解在NaOH溶液中可得到( ) A、NaNO2与H2O B、NaNO2、O2与H2O C、NaNO3、N2O5与H2O D、NaNO3、NaNO2与H2O 4、硝酸盐加热分解可以得到单质的就是( ) A、AgNO3 B、Pb(NO3)2 C、Zn(NO3)2 D、NaNO3 5、下列分子中具有顺磁性的就是( ) A、N2O B、NO C、NO2 D、N2O3 π离域键的就是( ) (吉林大学《无机化学例题与习题》) 6、下列分子中,不存在4 3 N A、HNO3 B、HNO2 C、N2O D、- 3 7、分子中含d—p反馈π键的就是( ) (吉林大学《无机化学例题与习题》) A、HNO3 B、HNO2 C、H3PO2 D、NH3 8、下列物质中酸性最强的就是( ) A、N2H4 B、NH2OH C、NH3 D、HN3 9、下列酸中为一元酸的就是( ) (吉林大学《无机化学例题与习题》) A、H4P2O7 B、H3PO2 C、H3PO3 D、H3PO4 10、下列各物质按酸性排列顺序正确的就是( ) (吉林大学《无机化学例题与习题》) A、HNO2>H3PO4>H4P2O7 B、H4P2O7>H3PO4>HNO2 C、H4P2O7>HNO2>H3PO4 D、H3PO4>H4P2O7>HNO2 11、下列物质中,不溶于氢氧化钠溶液的就是( ) (吉林大学《无机化学例题与习题》) A、Sb(OH)3 B、Sb(OH)5 C、H3AsO4 D、Bi(OH)3

化学考试不及格检讨书范文3篇

化学考试不及格检讨书范文3篇化学考试没考好,化学老师会生气的,罚写检讨算是较轻的惩罚了。那么以下是小编为大家整理的化学考试不及格检讨书范文,欢迎大家阅读! 化学考试不及格检讨书范文一:尊敬的化学老师: 我感觉我这次化学考试的分数是很低的,这远远没有达到我心目当中的一份理想成绩。然而,考试成绩实实在在地公布出来了,我考得不好是板上钉钉,铁一般的事实,不容我丝毫推脱。考试成绩不好,只能够说明我对这一科目的知识掌握得不够深透与全面。 成绩考差以后,我倍感苦恼,经过这一段时间的深刻反省。我总结出了造成这次考试失利的原因: 1、平时不注意化学知识的专研,也可以说是我对于化学这门科目的学习不够重视。 2、日常没有抽出足够的时间来完成化学作业,很多时候是没有时间留给化学作业的。 3、有时候自己也上课开小差,对于一些知识点没有细致、准确地掌握。 现在我考试已然失利,我痛苦难当,我也很懊悔。可是我也知道再多的言辞都显得苍白无力,我只有勇敢地面对目前形势,

集中精力、时间、条件用于提高自身学习成绩,在下一次大考当中取得优秀的化学成绩才是给老师最好的交待。 检讨人:xxx 20xx年xx月xx日 化学考试不及格检讨书范文二:尊敬的老师: 您好! 在这次的化学考试中,我不及格,作为一名理科生,这本来是不应该的行为,但是在数理化这三门重点科目上,我的化学又是最弱的了。其他科目我都可以很好的学习和理解,但是对于化学来说,总是像隔着一层纱一样,上课看起来听懂了,做题目的时候似乎也知道做了,但是一到考试的时候,就现行了,根本就不会做了。这次期末的考试,更是出现了退步,不及格了。我也感到很焦虑,毕竟下学期就是高三了,化学要是没学好,也影响我高考的成绩。 还是在初中的时候我的化学就不是太好,勉强可以70多分,不上不下的样子,进入高中以来,要记的东西,背的东西更多了,虽然勉强,但分数总是提不上去,在面临分班的时候,虽然有点犹豫,但还是选择了理科,毕竟我的历史和政治更是学不好,况且我的物理和数学都是挺好的,所以选择了理科。 到了高二的阶段,化学的知识变得更加复杂而多了,像电解,

科教版四年级上册科学各单元测试卷(含答案)

科教版四年级上册科学各单元测试卷 第一单元天气 一、多项选择题 1.通常通过()等天气特征来描述天气。 A.云量 B.降雨量 C.气温 D.风向 E.风速 2.根据云量的多少,天气可分为()。 A.晴天 B.多云天 C.雨天 D.阴天 3.科学家通过研究大气、云、风和各种形式的降水——()等,可以预测出未来一段时间的天气变化,一些探测仪器和卫星技术能够帮助科学家更准确地观测天气。 A.雨 B.雪 C.冰雹 D.雾 4.气象学家在对云进行描述时还通常把它们分成三类()。 A.积云 B.层云 C.卷云 D.白云 二、填空题 1.()是指室外阴凉、通风地方的温度,每天应选择同一时间来测量气温。 2.风可以通过自然界中事物的变化来感知,可以用()和()来描述。 3.降雨量的多少可以用()来测量。 4.“()”指的是我们居住的地区,在某个时间的大气状况。 5.( )是记录每天各种天气现象的表格。有了(),我们在做长时间的天气观察时,就可以用一些简单的方法进行记录,并利用这些记录,分析一段时间内的天气变

化,找到天气变化的简单规律。 6.()对天气的影响很大,是天气日历中重要的记录数据。通过观察和测量我们周围大气的()。就可以知道当地的气温。 7.()是指风吹来的方向,如北风是由北向南吹来的风,西风是由西向东吹来的风,东南风是由东南向西北吹来的风。 8.风向可以用()来测量。()的箭头指向的是风吹来的方向,我们用它来描述风向。 9.()是测量风速的仪器。它有3~4个风杯,连接在一个类似于自行车轮子的辐条上,辐条在风吹的时候带动中间的轮轴转动,安装在轮轴上的示速器就显示出风的速度。 10.()是天气的一个基本特征,也是天气日历中的重要数据。()的形式很多,常见的有雨、雪、冰雹等。 11.()是测量降雨量多少的装置。()的集水漏斗用来收集雨水,容器中雨水的高度值就是降水量。 12.靠近地球表面形成的扁平层状云是()。()通常是灰色的。()有时候会覆盖大部分甚至整个天空。如果()变厚,将会出现毛毛雨、大雨或雪,所以也称它为() 13.高于层云,看上去像棉花堆一样的云叫做()。()通常和晴好天气相联系,但是也能发展成(),并形成雷阵雨的天气。 14.纤细的云状云是()。()只有在温度非常低的高空才能形成,因为()是由微小的冰晶组成的。 三.填表题 气象学家根据降水量的多少,来区分下雨的等级:

面向对象分析与设计试题及其答案

面向对象分析与设计试题B卷 一、单项选择题( 在每小题的四个备选答案中,选出一个正确答案,并将正确答案的序号填在题干的括号内。每小题2 分,共20 分) 1.到20世纪末,面向对象软件工程已经逐渐发展成熟,特别是()的 形成和广泛使用,采用面向对象分析与编程的软件开发方法已成为软件开发的主流方法。 A. Simula67语言 B. Smalltalk语言 C. Java语言 D. 统一建模语言(UML)的标准 2. 面向对象的运动产生了多种面向对象的语言, 其中()是一种混合性面向对象语言, 既支持面向过程的程序设计方法,又支持面向对象的程序设计方法,有广泛应用的基础和丰富开发环境的支持,因而使面向对象的程序设计能得到很快普及。 A. Smalltalk B. Eiffel C. C++ D. Java 3.下列不属于面向对象技术的基本特征的是()。 A. 封装性 B. 模块性 C. 多态性 D. 继承性 4. 面向对象程序设计将描述事物的数据与( ) 封装在一起,作为一个相互依存、不可分割的整体来处理。 A. 信息 B. 数据隐藏 C. 对数据的操作 D. 数据抽象 5. 关于面向对象方法的优点,下列不正确的叙述是()。 A. 与人类习惯的思维方法比较一致 B. 可重用性好 C. 以数据操作为中心 D.可维护性好 6. ()是从用户使用系统的角度描述系统功能的图形表达方法。 A. 类图 B. 对象图 C. 序列图 D. 用例图 7. ( ) 是表达系统类及其相互联系的图示,它是面向对象设计的核心,建立状态图、协作图 和其他图的基础。 A.对象图 B. 组件图 C. 类图 D. 配置图 8.()描述了一组交互对象间的动态协作关系,它表示完成某项行为的对象和这些对象之 间传递消息的时间顺序。 A.对象图 B. 协作图 C. 状态图 D. 序列图 9.()就是用于表示构成分布式系统的节点集和节点之间的联系的图示,它可以表示系统 中软件和硬件的物理架构。 A. 组件图 B. 协作图 C. 状态图 D. 配置图 10. 使用UML进行关系数据库的()时,需要设计出表达持久数据的实体类及其联系,并把它们映射成为关系数据库表(Table)、视图(View)等。 A. 业务Use Case模型设计 B. 逻辑数据模型设计 C. 物理数据模型设计 C. 物理实现设计 二、填空题( 每空1 分,共20 分) 1. 面向对象开发方法一改过去传统的以___功能分析___为基础的__面向过程__的结 构化分析与设计方法,它模拟人们理解和处理客观世界的方式来分析问题,把系统视为

银行储蓄系统面向对象分析

课题:银行计算机储蓄系统 学院:数学科学学院 班级:信科1202 信科1201 学号:120702203 120702101 姓名: 指导老师:田怀凤

银行储蓄系统面向对象分析 一、建立对象模型 需求陈述: 储户填写存款单或取款单由业务员键入系统。如果是存款则系统记录存款人姓名、住址(或电话号码)、身份证号码、存款类型、存款日期,到期日期,利率以及密码(可选)等信息,并引出存款单给储户,如果是取款而且存款时留有密码,则系统首先核对储户密码,若密码正确或存款时未留密码,则系统计算利息,并印出利息清单给储户。 确定类&对象: 1.找出所有可能的类&对象:储户、存款单、取款单、业务人员、计算机储蓄系统、账户、事务 2.筛选:储户、业务人员、计算机储蓄系统、账户、事务 确定关联: 储户拥有账户 业务人员与计算机通信 业务人员输入事务 最终的关联为如下图: 储户 账户 业务人员事务 业务人员 计算机储蓄系统 1+ 1+ 输入 1+ 通信 拥有 修改 站号

确定属性: 储户:姓名、地址 账户:余额、限额、类型 业务人员事务:类型、日期、金额 业务人员:姓名 建立的对象模型为: 拥有 储户 —姓名 —地址 帐户 —余额 —限额 —类型 业务人员事务 —类型 —日期 —金额 业务人员 —姓名 +录入信息() 计算机储蓄系统 +记录储户信息() +记录存款类型() +纪录存款日期() +记录到期日期() +计算利率() +引出存款单() +打印利息清单() +核对储户密码() 输入 修 改 站号 通信 1+ 1+ 1+

二、建立动态模型 编写脚本: 计算机储蓄系统的正常情况脚本: 储户的填写存款单 业务人员键入系统,系统引出存款单给储户 储户填写取款单,系统核对储户密码,计算利息并打印利息清单给储户 计算机储蓄系统的异常情况脚本: 储户身份证号码填写错误,找不到该储户信息 储户填写取款单的密码错误 画事件跟踪图: 储蓄系统正常情况事件跟踪图: 储户业务人员储蓄系统 填写存款单 填写取款单 要求事务类型 请求处理事务类型

相关文档
最新文档