2019北京四中高一(上)期中英语含答案

2019北京四中高一(上)期中英语含答案
2019北京四中高一(上)期中英语含答案

2019北京四中高一(上)期中

英语

第一部分听力(略)

第二部分英语知识运用(共两节,满分50分)

第一节语法填空(共10小题;每小题2分,满分20分)认真阅读,完成下列各题。

21. It was unbelievable that the fans waited outside the gym for three hours just _______(have ) a look at the sports stars.

22. I didn't mean ___________(eat)anything but the ice cream looked so good that I couldn’t help trying it.

23. I live next door to a couple ________ children often make a lot of noise.

24. Please send us all the information _________ you have about the candidate for the position.

25. The boy _________is leaning against the door is our monitor.

26. Nowadays, swimming_________ (consider) to be one of the best all-round forms of exercise.

27. The students have been working hard on their lessons and their efforts _________(reward) with success in the coming exam.

28. Despite the previous rounds of talks, no agreement _________(reach) so far by the two sides.

29. Last night, I _________(choose) from hundreds of students to attend the opening ceremony.

30. My washing machine _________(repair) this week, so I have to wash my clothes by hand.

第二节完形填空(共20小题;每小题1.5分,满分30分)

“Meow, meow, meow,”is what I heard as I walked through the alley. I approached the noise and noticed a tail sticking our from under a piece of wood. Under the wood was a 1 black and white cat. I picked him up and 2 he must be freezing to death. I 3 home with the cat held in my jacket.

My new best friend, who soon became known as Little Bit, received his name because he was almost 4 when I held him in my hands. He stood about five inches tall. Little Bit's small size had a great advantage - he 5 perfectly in the pocket of my jacket, which made 6 him everywhere very easy. Any time I was home, he wouldn't leave my 7 . He was always eager to play with me. When I fell asleep at night, he would always 8 up around my head to ensure that I was

warm. Unfortunately, I grew up. My teenage life 9 my relationship with Little Bit. I lived at such a fast pace that I stopped 10 time for him. My free time was spent with my friends instead. I would come in the house on my phone and

not 11 him at all. His meows became an annoyance to me, but it wasn't his 12 that he wanted his best friend back.

Time had caused a 13 to Little Bit. His body began 14 down and by the time I realized something was wrong with him, he had already lost his balance. He lay there and looked at me, and 15 this day I still remember the 16 look in his bright green eyes. I took him to the vet (兽医), but there was nothing he could do. The last time I 17 him he wasn't the same tiny cat I had found ten years before. Little Bit filled my arms and he was put to sleep that day.

Little Bit's 18 made me realize how much he meant to me. He was always there for me when I needed him. I 19 our last years together and I feel sorry for not always being there for him. I will always 20 the special memories we made.

( )1. A. lovely ( )2. A. agreed ( )3. A. left

( )4. A. weightless ( )5. A. grew ( )6. A. showing ( )7. A. mind ( )8. A. rise ( )9. A. weakened ( )10. A. making ( )11. A. overlook ( )12. A. desire ( )13. A. fear ( )14. A. dropping ( )15. A. on

( )16. A. shameful ( )17. A. helped ( )18. A. illness ( )19. A. regret ( )20. A. treasure B. tiny

B. insisted

B. stayed

B. useless

B. fitted

B. keeping

B. heart

B. stand

B. fastened

B. losing

B. interrupt

B. purpose

B. loss

B. tearing

B. to

B. hateful

B. protected

B. death

B. bother

B. admire

C. pretty

C. realized

C. drove

C. breathless

C. played

C. taking

C. body

C. wake

C. deepened

C. wasting

C. acknowledge

C. fault

C. delay

C. calming

C. in

C. harmful

C. held

C. sadness

C. confuse

C. evaluate

D. friendly

D. proved

D. hurried

D. hopeless

D. existed

D. guiding

D. side

D. roll

D. sharpened

D. gaining

D. recognize

D. greed

D. concern

D. shutting

D. for

D. sorrowful

D. cured

D. pressure

D. dream

D. explore

第三部分:阅读理解(共15小题;每小题2分,满分30分)

阅读下列短文,从每题所给的A, B,C, D四个选项中,选出最佳选项,并在答题纸上将该项涂黑。

A Powerisers

The ability to jump two meters in the air may not be something you have thought too much about. And most people have never considered running at 30 kilometers an hour. But just stop for a moment and think about how our new product could change your life.

Your daily journey to your place of work is probably a mad dash for the bus. There is no point in taking your car because there are traffic jams, and anyway the car parks are probably very expensive or, worse still, full. Here is where Powerisers can help. It takes just a couple of minutes to put them on and then you are away, going past others or even jumping over the object which blocks your way.

That is the practical use for our product, but then there is sport and exercise. Powerisers are set to be the next extreme sport and the deep-fit tools. You can imagine the 100 meters, the high jump or basketball performed by athletes wearing Powerisers. And what better way to build your muscles and keep fit?

Our product is very simple. It is powered by a superlight spring, which uses the gravitational() pull from your body weght and pushes you with superhuman strength. There have been no records of serious injury related to the use of Powerisers, but extreme caution is recommended. We strongly advise the wearing of protective clothing, including at least a helmet().

Powerisers make you feel as if you were walking on the moon. Now we make two different models: Basic and Professional. The Basic model is designed for the occasional users and costs around $ 500. The Professional model, which is designed for the competitive use, has a strongly-made structure and different springs, though that comes at the increased price of $800. Our Powerisers are guaranteed for two years and will be replaced without question if they fail during that period. That is how confident we are.

51. According to the passage, Powerisers can help you ______.

A. get on the bus

B. jump over blocks

C. relax hard muscles

D. lift heavy weights

52.A helmet is recommended to users to _______.

A. prevent them from being injured

B. provide them with superhuman strength

C. Offer them the feeling of walking on the moon

D. Bring them good results in competitive situations

53.What is the author’s purpose of writing the passage?

A.To advertise a sports product.

B. To show advantages of taking exercise

C. To explain basic principles of Powerisers.

D. To introduce the development of Powerisers

B

My teacher held up a piece of broken glass and asked, “Who broke this window?”

Thirty boys tried to think about not only what they had done, but also what our teacher may have found out. She seldom became angry, but she was this time.

“Oh,”I thought. I was the one who broke the window. It was caused by a naughty throw of a baseball. If I admitted guilt, I would be in a lot of trouble. How would I be able to pay for a big window like that? I didn’t even get an allowance. “My father is going to have a fit.”I thought. I didn’t want to raise my hand, but some force much stronger than I was pulled it skyward. I told the truth. “I did it.”It was hard enough to say what I had.

My teacher took down a book from one of our library shelves and I had never known my teacher to strike a student, but I feared she was going to start with me.

“I know how you like bird,”she said as she stood looking down at my guilt-ridden face. “Here is that field guide about birds that you are constantly che cking out. It is yours now. It’s time we got a new one for the school anyway. You will not be punished as long as you remember that I am not rewarding you for your misdeed, I am rewarding you for your truthfulness.”

I couldn’t believe it! I wasn’t bei ng punished and I was getting my own bird field guide---the very one that I had been saving up money to buy.

All that remains of that day is my memory and the lesson my teacher taught me. That lesson stays with me every day, and it will echo forever.

54.From the story, we can learn that the boy _____.

A. didn’t break the window on purpose

B. lacked the strength to admit his guilt

C. tried to think about what he had done

D. didn’t know what the teacher would find out

55.If the boy admitted guilt, he thought he would NOT ______.

A. be punished by the teacher

B. make his father angry

C. pay for the broken window

D. get a bird field guide

56.Which of the following best describes the changes in the boy’s feelings?

A. Afraid--Surprised--Thankful

B. Frightened--Amazed--Proud

C. Regretful--Guilty--Excited

D. Nervous--Afraid--Satisfied

57.What is the lesson the boy’s teacher taught him?

A. Every coin has two sides

B. Honesty is always valued

C. Bad luck never comes alone

D. It’s never too late to be careful

C

The next time you attend a social function or go to a place where people meet and interact, take note of the number of people who have adopted the same gestures and posture---the way you sit or stand--of the person with whom they are talking. This “carbon copying” is a means by which one person tells the other that he is in agreement with his ideas and attitudes. By this method, one is non-verbally (非语言的) saying to the other, “A s you can see, I think the same as you, so I will copy your posture and gesture.”

This unconscious (无意识地) mimicry is quite interesting to observe. Take, for example, the two men standing at the hotel bar. They have mirrored each other’s gestures and i t is reasonable to assume that they are discussing a topic upon which they have the same thoughts and feelings. If one man uncrosses his arms and legs or stands on the other foot, the other will follow. If one puts his hand in his pocket the other will copy and this mimicry will continue for as long as the two men are in agreement.

This copying also occurs among good friends or people of the same social position and it is common to see married couples walk, stand, sit and move in very similar ways. People who are strangers, however, try hard to avoid holding mutual() positions. The significance of carbon copying can be one of the most important non-verbal lessons we can learn, for this is one way that others tell us that they agree with us or like us. It is also a way for us to tell others that we like them, by simply copying their gestures.

If an employer wishes to develop immediate friendliness and create a relaxing atmosphere with an employee, he needs to copy the employee’s posture to achieve th e end. Similarly, an up-and-coming employee may be seen copying his boss’s gestures in an attempt to show agreement. Using the knowledge, it is possible to influence a face-to-face encounter() by copying the positive gestures and postures of the other person. This has the effect of putting the other person in a receptive and relaxed frame of mind and he can “see” that you understand his point of view.

58.What is the best title for the passage?

A. Carbon Copying---Showing Agreement

B. Developing Non-verbal Communication

C. How to avoid Carbon Copying

D. Proper Social Behavior

59. What is "carbon copying" according to the passage?

A.To adopt identical gesture of others.

B.To repeat what others have said.

C.To show agreement with others.

D.To mock others.

60.In which of the following groups is carbon copying NOT frequently seen?

A. Married couples

B. People not familiar with each other.

C. Good friends.

D. People of the same social position.

61.What should an employer do to created a relaxing atmosphere for an employee?

A. Be polite.

B. Avoid copying the employee’s gesture.

C. Be helpful.

D. Copy the gesture of the employee.

D Seeds on Ice

Close to the North Pole, remote and rocky Plateau Mountain in the Norwegian archipelago of

Svalbard seems an unlikely spot for any global effort to safeguard agriculture. In this cold and

deserte d environment, no grains, no gardens, no trees can grow. Yet at the end of a 130-meter-

long tunnel cut out of solid stone is a room filled with humanity’s most precious treasure, the

largest and most diverse seed collection ---more than a half-billion seeds.

A quiet rescue mission is under way. With growing evidence that unchecked climate change

will seriously affect food production and threaten the diversity of crops around the world, the Svalbard Global Seed Vault represents a major step towards ensuring the preservation of hundreds of thousands of crop varieties. This is a seed collection, but more importantly, it is a collection of the traits found within the seeds: the genes that give one variety resistance to a particular pest and another variety tolerance for hot, dry weather.

Few people will ever see or come into contact with the contents of this vault. In sealed boxes, behind multiple locked doors, monitor ed by electronic security systems, enveloped in below-zero temperatures, and surrounded by tons of rock, hundreds of millions of seeds are protected in their mountain fortress. Frozen in such conditions inside the mountain, seeds of most major crops will remain viable for hundreds of years, or longer. Seeds of some are capable of retain ing their ability to grow for thousands of years.

Everyone can look back now and say that the Seed Vault was a good and obvious idea, and that of course the Norwegian government should have approved and funded it. But back in 2004, when the Seed Vault was proposed, it was viewed as a crazy, impractical, and expensive idea.

We knew that nothing would provide a definite guarantee. But we were tired, fed up, and frankly scared of the steady, greater losses of crop diversity. The Seed V ault was built by optimists who wanted to do something to preserve options so that humanity and its crops might be better prepared for change. If it simply resupplied seed gene banks with samples those gene banks had lost, this would repay our efforts.

The Seed Vault is about hope and commitment—about what can be done if countries come together and work cooperatively to accomplish something significant, long-lasting, and worthy of who we are and wish to be.

62. According to the passage, the Seed Vault is _______.

A. a tunnel where the collected seeds are displaye d

B. a stone room that contains the seeds of endangered crops

C. a seed gene bank that stores diverse seeds for future agriculture

D. a lab where researchers study how to maintain the diversity of crops

63. The underlined word “viable” in Paragraph 3 probably means _______.

A. mature

B. clean

C. alive

D. valuable

64. Paragraph 3 mainly tells us ___________.

A. how the seeds are preserved

B. where people keep the seeds

C. why the seeds are protected

D. what people do to study the seeds

65. We can know from the passage that ____________.

A.the Seed Vault offers a solution to climate change

B.most countries took part in rescuing the seed varieties

C.the Seed Vault guarantees to prevent the loss of crop diversity

D.many people originally considered building the Seed Vault unwise

第四部分:书面表达(共两节,满分30分)

第一节翻译句子(共5小题;每小题3分,满分15分)

使用所给的词或短语翻译句子,不使用者不得分。

66.我期待在2020年游览故宫或在那里做志愿者。(look forward to, the Forbidden City)

67.我奶奶现在会把照片附在电子邮件里了。(capable, attach)

68.相比于占别人便宜,我们更愿意通过努力工作来获得好处。

(prefer...rather than, gain benefit, take advantage of )

69.昨天你提醒他给我的朋友们在酒店订三个房间了吗?(remind,book)

70.Mark发现学英语很有趣,在英语上付出的努力也终会有回报。(find...adj., pay off)

第二节应用文(满分15分)

假设你是中国某高中学生李华。请给你的朋友Mark介绍一个中国节日,包含以下内容:1.节日名字,时间 2. 节日的习俗 3. 节日的意义

2019北京四中高一(上)期中英语

参考答案

知识运用: to have, to eat, whose, that, who/that, is considered, will be rewarded, has been reached, chose, is being repaired 完形: BCDAB CDDAA CCBDB DCBAA

阅读理解: A: BAA B: ADAB C: AABD D: CCAD

翻译句子:

66. I look forward to visiting the Forbidden City in 2020 or working there as a volunteer.

67. My grandma is now capable of attaching photos to emails.

68. We preferred to work hard to gain benefits rather than take advantage of others.

69. Did you remind him to book three rooms in the hotel for my friends?

70. Mark finds learning English interesting and the efforts in learning it will finally/eventually pay off,

2020-2021年北京四中高三(上)期中语文

2020北京四中高三(上)期中 语文 (试卷满分为150分,考试时间为150分钟) 一、本大题共5小题,共18分。 认真阅读下面的材料,然后完成1-5题。 材料一 就算让贾公彦拍破脑袋,也不会知道在一千年后,他会被人们认为是指纹识别技术的最早发现者。这位唐朝的儒生凭借对周礼的研究,曾做过太常博士。《周礼》中介绍过周代的一个官职“司市”,类似于现在的市场监管人员。在对“司市”的描述中,提到了一个词叫“质剂”。汉代的郑玄注释说:“质剂谓两书一扎,同而别之也,若今下手书。”“下手书”这个汉代的名词到唐朝时已经不被人熟悉了,贾公彦就在《周礼义疏》中写道:“汉时下手书即今画指券。”也就是说,汉朝的“下手书”就相当于唐朝的一种被称为“画指券”的契约文书, 它要求签约的甲乙方及中间人都要把手指在纸张上平放,画下食指上三条指节,以此作为证明。本来,贾公彦的这条注释十分平常,但德国学者罗伯特·海因德尔偶然看到了这一段文字,顿时大感兴奋。他不仅将文字的内容写入了其在1927年出版的《指纹鉴定》,还盛赞贾公彦是世界上最早发现并阐述指纹性质及其应用的人。于是,贾公彦这位古人就莫名其妙地多了一个身份——指纹识别第一人。 欧洲人对指纹的应用似乎要晚得多。但在认清了指纹的科学性质之后,他们迅速地把这些发现应用到了实践。渐渐地,人们还发现人脸、虹膜、声纹、DNA等都有和指纹类似的独特、 唯一的性质,可以被用来进行人的身份识别。于是,一种全新的,综合运用多种高科技手段,通过人体固有的生理特性和行为特征等“生物密钥”来实现个人身份鉴别的技术就诞生了。这种技术,就是我们现在十分熟悉的生物识别技术。 近几年,在智能手机、移动互联、人工智能等技术的推进之下,生物识别技术更是迅速普及。有了按指纹、刷脸等技术,我们就不再需要记忆繁琐的密码,进行身份验证时的效率一下子就提升了很多。当然,生物识别技术也有着缺陷和相应的风险。用生物密钥来进行身份识别的原理就是对关键点采样,然后对这些采样点的特征进行比对。在这样的背景下,很多因素都可能对识别结果产生干扰。一方面,一些外部环境因素可能对生物识别的准确性产生比较大的影响;另一方面,人们本身的生物特征变化也可能干扰生物识别的准确性,像整容、受伤、年龄变化,乃至佩戴隐形眼镜等事件都可能会对生物识别的结果产生影响。 (取材于陈永伟的相关文章) 1.根据材料一,下列表述正确的一项是(3分)

北京四中高一化学上学期期末试题

北京四中高一化学上学期期末试题 (考试时间为100分钟,试卷满分为150分) 相对原子质量:H-1 C-12 N-14 O-16 Na-23 Mg-24 Al-27 Si-28 S-32 Cl-35.5 K-39 Ca-40 Fe-56 Cu-64 I 卷(模块)满分100分 一、选择题(每小题只有1个选项符合题意,每小题3分,共69分。) 1. 下列物质属于纯净物的是 A. 钢 B. 液氯 C. 空气 D. 氨水 2. 氧化还原反应的实质是 A. 电子转移 B. 元素化合价变化 C. 氧元素参加反应 D. 原子重新组合 3. 下列仪器中,可用酒精灯直接加热的是 A. 烧杯 B. 烧瓶 C. 锥形瓶 D. 坩埚 4. 下列物质中,属于非电解质的是 A. 稀盐酸 B. 铜丝 C. 氯化钠固体 D. 蔗糖 5. 下列常用的混合物分离或提纯操作中,需使用冷凝器的是 A. 过滤 B. 蒸发 C. 蒸馏 D. 分液 6. 下列物质中的氮元素只能体现氧化性的是 A. 3NH B. NO C. 2NO D. 3HNO 7. 人体中的下列离子能够调节血液酸碱性的是 A. + Na B. - 3HCO C. + 2Fe D. - Cl 8. A N 代表阿伏加德罗常数的数值。下列有关A N 的叙述中,正确的是 A. 1mol 任何物质所含的分子数均为A N 个 B. 14g 氮气所含的N 原子数为A N 个 C. 标准状况下,22.4L 水所含的O H 2分子数为A N 个 D. 在钠与氯气的反应中,1mol 钠失去电子的数目为A N 2个 9. 下列各组混合物中,能用分液漏斗进行分离的一组混合物是 A. 酒精和水 B. 碘和四氯化碳 C. 水和四氯化碳 D. 氯化钠和水 10. 除去2CO 中的HCl 杂质最好是将混合气体通过足量的 A. 饱和NaOH 溶液 B. 饱和3NaHCO 溶液

2019海淀高三期末语文试卷

2019北京海淀区高三(上)期末 语文 2019.1 一、本大题共6小题,共25分。 阅读下面的材料,完成1-6题。 材料一 一篇文章的优劣,取决于能否映射现实、有无社会观照。倘若文风浮夸自大,标题一’晾 -乍,事实似是而非,这不仅唐突了读者,也丧失了传播价值,污染了舆论生态。 最近在网上,“美国害怕了”“日本吓傻了”“欧洲后悔了”之类的文章,总能赚取不少莫名点击。然而,纵观这些所谓“爆款”文章,其实却了无新意,一味夸大,文风堪忧。比如,有的任意拔高、以偏概全,高喊《在这些领域,中国创下多个“世界第一”!无人表示不服》;有的自我安慰、贻人口实,鼓吹《别怕,我国科技实力超越美国,居世界第一》;有的内容一厢情愿、断章取义,将国外的只言片语,放大成“中国在世界舞台上占据中心位置…中国现在是全球第一经济体”等声音。 这些“雄文”的共性,一无事实骨架,二无内容血肉,三无思想含量,徒有浮躁外壳,经不起一点风吹日晒。要知道,文章不会因为浮夸而增色,国家也不会因为自大而变强。挑动极端情绪、肆意传播偏见,容易造成公众走进夜郎自大、自吹自擂的狂妄误区,导致社会陷入信息碎片化、思维程序化的认知闭环。 新闻学有一种观点认为,“最好的编辑一定是个营销专家”。而某些媒体,其浮夸自大的文风,无异于“吸晴涨粉”的气球,一触即破。这类文章的始作俑者,把标题当作一枚带着诱饵的鱼钩,诸如“全球首款”“世界第一”的标题党,给标题大加“刺激”的猛料,以博人眼球,吊人胃口。然而,新闻不是爽文。如果只讲营销不讲营养,只要眼球不讲责任,即使一时流量爆棚,也是在误导大众。 有网友感慨,进入了自媒体时代,新闻越来越多,离真相却越来越远。的确,浮夸自大的文风套路,看似抄了“10万+”的近路,实则误入新闻生产的歧路。据统计,去年新媒体运营行业人数超过300万,各类机构对内容创业者的投资金额超过50亿元,可谓既有前途,又有“钱途”。然而,面对如此大好的形势,自媒体要想创作自如,就更需恪守自律。倘若毫无底线蹭热点,肆无恩障造噱头,结果只能是漫出道德水位,偏离法治轨道,消解媒体公信力。 言之无文,行而不远。有人疑惑,是文章不会写了吗?并不是。还记得,南海仲裁闹剧群情激愤,“中国一点都不能少”的新闻作品却产生共鸣。针锋相对却有礼有节,气贯长虹而又言之有物,这样的文风文气,怎能不引发舆论场同声同气?全媒体时代,真实客观理性的新闻准绳没有变,新鲜有趣优质的价值取向没有变,平实求实务实的文风导向也没有变。只有创作者自律自觉,将文风与世风勾连,给流量和情绪松绑,方能写出真正从容自信的作品。

北京四中高一数学上学期期末试题

高中数学精品资料 2020.8 【人教版高一数学模拟试卷】 北京市四中上学期高一年级期末测验数学试卷 试卷分为两卷,卷(I )100分,卷(II )50分,共计150分 考试时间:120分钟 卷(I ) 一、选择题:(本大题共10小题,每小题5分,共50分) 1. ?210cos = A. 2 1 B. 2 3 C. 2 1- D. 2 3- 2. 设向量()?? ? ??==21, 21,0,1,则下列结论中正确的是 A. ||||= B. 2 2= ? C. 与-垂直 D. ∥ 3. 已知?? ? ??- ∈0,2πα,53cos =a ,则=αtan A. 43 B. 4 3- C. 3 4 D. 3 4- 4. 已知向量a 、b 满足2||,1||,0===?,则=-|2| A. 0 B. 22 C. 4 D. 8 5. 若 2 4 π θπ < <,则下列各式中正确的是 A. θθθtan cos sin << B. θθθsin tan cos << C. θθθcos sin tan << D. θθθtan sin cos << 6. 设P 是△ABC 所在平面内的一点,且2=+,则 A. 0=++PC PB PA B. 0=+PC PA C. 0=+PC PB D. 0=+PB PA 7. 函数14cos 22 -?? ? ? ?- =πx y 是 A. 最小正周期为π的奇函数 B. 最小正周期为π的偶函数

C. 最小正周期为π2的奇函数 D. 最小正周期为π2的偶函数 8. 若向量()()1,1,4,3-==d AB ,且5=?AC d ,则=?BC d A. 0 B. -4 C.4 D. 4或-4 9. 若函数()?? ? ? ?<≤+=20sin 3cos πx x x x f ,则()x f 的最小值是 A. 1 B. -1 C. 2 D. -2 10. 若()()m x x f ++=?ωcos 2,对任意实数t 都有()t f t f -=??? ? ?+4π,且18-=?? ? ??πf ,则实数m 的值等于 A. 1± B. 3± C. -3或1 D. -1或3 二、填空题(本大题共6小题,每小题4分,共24分) 11. 已知ααcos 3sin =,则=ααcos sin _________。 12. 已知向量()()()2,1,,1,1,2-=-=-=c m b a ,若() c b a ∥+,则=m ________。 13. ??? ? ? + 6tan πα21=,316tan -=??? ? ? -πβ,则()=+βαtan _________。 14. 若函数()x x f 2 sin =,则=?? ? ??12πf _________, ,单调增区间是_________。 15. 如图,在△ABC 中,AD ⊥AB ,BD BC 3= ,1||=AD ,则=?AD AC _________。 16. 定义运算b a *为:()()? ??>≤=b a b b a a b a *。例如:12*1=,则函数()x x x f cos *sin =的值域为_________。 三、解答题(本大题共3小题,共26分) 17. (本小题满分6分) 已知:如图,两个长度为1的平面向量和,它们的夹角为3 2π ,点C 是以O 为圆心的劣弧AB 的中点。

2019海淀区高三年级第二学期期中练习语文

2019年海淀区高三年级第二学期期中练习 前言:现在距离高考越来越近,时间也越来越紧张,没有多少时间了!这个时候很多学生由于心理紧张,每天坐立不安,特别烦躁,不能静下心来学习。(关于高考心理辅导,另文刊登)这时候可不能放松 C小石潭的凄清、岳阳楼的阴晴、荷塘月色的宁静是文学家与客观景物沟通、交流、融合的产物。 D自然中的美景是由各种因素随机排列而成的组合,自然美景不可多得,不可再造,也不能失而复得。15.人为什么能从自然中获得美的体验?请根据文章内容概括说明。(5分)五、本大题共4小题,共25分。阅读下面的作品,完成16—19题。 看麦熟 肥沃的关中平原,从头年冬到次年春,走到田野上,十有八九都铺着日渐加厚的小麦的绿毡。而到了清明节呢,农谚说:“清明麦子埋老鸹。”于是,田野处处,是厚可盈尺的绿绒被了。“清明时节雨纷纷”,一块又一块的绿绒被儿,绿光闪烁,好不喜人。从此小麦就可着劲儿长了,那绿绒被便膨起来,膨起来,一天一个样子,一天一个样子,直至像隆起的海浪碧波,涛声震响。忽然有那么一天,麦稍儿迎风摇摆,一浪推着一浪,有了金子一样的颜色。麦梢儿的这一变化是一种信号,它触动了每一个庄稼人的心,而跳得最快最欢最

美的,却是婆娘们的心。 婆娘,关中农村特有的称谓,把自己的一颗心分作两半——一半在婆家,一半在娘家。婆娘负重最多、爱最多,最具人性美,最有人情味。 这不,看见麦梢儿黄了,她们立即想到了娘,想到了娘家的麦田,都准备着看望辛苦了大半年的爹娘和兄嫂弟妹,同时分享娘家麦子即将成熟的欢乐。于是,她们都忙碌起来了:蒸馍馍,烙锅盔,采拔菜蔬……丈夫、公婆都理解她们,由着她们的心性。咱关中俗话:“麦梢黄,女看娘”呀!这种风俗辈辈沿袭。她们小曲悄唱,加紧了手中的活儿。手疾脚快地找篮篮,装礼物,梳洗打扮——家家屋中大体都是这样。她们恨不得转眼间就能扑到亲娘的怀里。 于是,麦黄天,人们都惊叹关中路广漠的田野上,到处闪耀着看麦熟的婆娘的身影。她们的肌肤有的粉红,有的微黑,有的如春萝卜般的细嫩,有的如秋白菜般的健康,真是摇曳多姿、风情万种。于是,这麦黄天,田野是大片大片的黄的色块,她们是红的绿的花的荡漾的曲线。色块有了曲线喜悦的旋律,曲线有了色块的成熟的神韵。而这一切是被馨香浸透。 天那么蓝,那么纯,布满麦田的大地显得更黄了。大地焕发出我们民族的原色,它那么丰盈,那么辉煌。婆娘们就走在那原色之中。丰收在望,庄稼人被它所燃烧,田野上便此起

2017-2018学年北京四中下学期高一年级期中考试数学试题(解析版)

2017-2018学年北京四中下学期高一年级期中考试数学试题 一、单选题 1.某影院有40排,每排46个座位,一次新片发布会坐满了记者,会后留下了每排20号的记者进行座谈,这样的抽样方法是 A. 抽签法 B. 随机数表法 C. 系统抽样法 D. 分层抽样法 【答案】C 【解析】分析:根据抽样形式确定抽样方法. 详解:因为留下了每排20号的记者,等距抽样,所以抽样方法为系统抽样法, 选C. 点睛:抽签法根据签抽样,随机数表法根据数表抽样,系统抽样法是等距抽样,分层抽样法按比例抽样. 2.下列命题中,正确命题的个数是 ①有三个公共点的两个平面重合②梯形的四个顶点在同一平面内 ③三条互相平行的直线必共面④四条线段顺次首尾相接,构成平面图形 A. 0 B. 1 C. 2 D. 3 【答案】B 【解析】分析:根据平面确定的公理判断命题真假. 详解:因为有三个不共线公共点的两个平面重合,所以①错; 因为梯形有两条直线相互平行,所以梯形的四个顶点在同一平面内,②对; 因为三条互相平行的直线不一定共面,如长方体三条平行的棱就不共面,所以③错,因为四条线段顺次首尾相接可构成空间四边形,所以④错; 选B. 点睛:公理3是确定平面的公理,注意其中条件:三个不共线的点,两条平行直线,两条相交直线,一直线以及直线外一点. 3.如图,正方形ABCD内的图形来自中国古代的太极图,正方形内切圆中的黑色部分和白色部分关于正方形的中心成中心对称,在正方形内随机取一点,则此点取自黑色部分的概率是

A. 14 B. 8π C. 12 D. 4 π 【答案】B 【解析】设正方形边长为a ,则圆的半径为 2 a ,正方形的面积为2a ,圆的面积为2 4a π.由图形的对称性可知,太极图中黑白部分面积相等,即各占圆面 积的一半.由几何概型概率的计算公式得,此点取自黑色部分的概率是 221248 a a ππ? =,选B. 点睛:对于几何概型的计算,首先确定事件类型为几何概型并确定其几何区域(长度、面积、体积或时间),其次计算基本事件区域的几何度量和事件A 区域的几何度量,最后计算()P A . 4.△ABC 中,若B =45°,,则A = A. 15° B. 75° C. 75°或105° D. 15°或75° 【答案】D 【解析】分析:先根据正弦定理求C ,再根据三角形内角关系求A. 详解:因为,所以 所以 因此, 选D. 点睛:在已知三角形两边及其中一边的对角,求该三角形的其它边角的问题时,首先必须判断是否有解,如果有解,是一解还是两解,注意“大边对大角”在判定中的应用.

北京四中:高一《数学》第一学期期中考试和答案

高一数学(必修1)期中模拟卷 一、选择题:(每小题5分,共12小题,合计60分) 1、 下列几个关系中正确的是( ) A 、0{0}∈ B 、 0{0}= C 、0{0}? D 、{0}?= 2、设:f M N →是集合M 到集合N 的映射,下列说法正确的是( ) a 、M 中每一个元素在N 中必有输出值。 b 、N 中每一个元素在M 中必有输入值。 c 、N 中每一个元素在M 中的输入值是唯一的。 d 、N 是M 中所有元素的输出值的集合。 3、下列函数与y x =有相同图象的一个是( ) A 、y = B 、2 x y x = C 、 log (0,a x y a a =>且1)a ≠ D 、log (0,x a y a a =>且1)a ≠ 4、集合11 {|,},{|,}2442 k k M x x k Z N x x k Z == +∈==+∈,则( ) A 、M N = B 、M N ? C 、N M ? D 、M N =? 5、已知53()2f x x ax bx =-++且(5)17f -=,则(5)f 的值为( ) A 、19 B 、 13 C 、 -19 D 、 -13 6、若0a <,则函数(1)1x y a =--的图象必过点( ) A 、(0,1) B 、(0,0) C 、(0,-1) D 、(1,-1) 7、要得到函数(2)1y f x =-+的图象,只需将函数()y f x =的图象( ) a 向右平移2个单位,向下平移1个单位。 b 向左平移2个单位,向下平移1个单位。 c 向右平移2个单位,向上平移1个单位。 d 向左平移2个单位,向上平移1个单位。 8、定义集合A 、B 的一种运算:1212{,,}A B x x x x x A x B *==+∈∈其中,若{1,2,3}A =,{1,2}B =,则A B *中的所有元素数字之和为( ) A .9 B. 14 C.18 D.21 9、已知函数()312f x ax a =+-在区间(-1,1)上存在0x ,使得0()0f x =,则( ) A 、115a -<< B 、15a > C 、1a <-或1 5 a > D 、1a <- 10、对任意实数x 规定y 取1 4,1,(5)2 x x x -+-三个值中的最小值,则函数y ( A 、有最大值2,最小值1, B 、有最大值2,无最小值, C 、有最大值1,无最小值, D 、无最大值,无最小值。 11、如图所示的是某池塘中的浮萍蔓延的面积(2m )与时间t (月) 的关系:t y a =,有以下叙述: ① 这个指数函数的底数是2;② 第5个月时,浮萍的面积就会超过230m ; ③ 浮萍从2 4m 蔓延到2 12m 需要经过1.5个月; t/月

北京市海淀区2019届高三下学期期末练习(二模)语文试题(含答案)

海淀区高三年级第二学期期末练习 语文 2019.5 一、本大题共7小题,共26分。 阅读下面的材料,完成1-7题。 材料一 路遥是我国当代文学史上一位极其重要的现实主义作家,他把目光投向变革中的现实生活,关注社会底层小人物的情感与命运。他用生命所建构的文学世界,呈现了积极向上的时代精神也照亮了无数人前行的路。 路遥的长篇小说《平凡的世界》主要反映1975年到1985年城乡广阔的社会生活。他在《早晨从中午开始》中这样说:“这十年是中国社会的大转型时期,其间充满了密集的重大的历史事件。我的基本想法是,要用历史和艺术的眼光观察在这种社会大背景下人的生存与生活状态。作品中将要表露的对某些特定历史背景下政治事件的态度,看似是作者的态度,其实基本应该是那个历史条件下人物的态度,作者应该站在历史的高度上,真正体现巴尔扎克所说的书记官’的职能。” 现实主义作品的创作方式,要求路遥一丝不苟、全方位地占有资料,熟悉所书写时代的特征与气质。路遥用6年左右的时间,潜心 ..阅读了一百多部长篇小说,阅读了大量政治、经济、历史、宗教、文化以及农业、工 业、科技、商业等方面的书籍,还翻阅过这十年间的各类报刊杂手指头翻烂了,就缠上胶布翻。他屡次 ..重返陕北故乡,深入到工矿企业、学校、集镇等地,进行生活的“重新到位”,加深对农村、城镇变革的感性体验。应该说,路遥在动笔创作这部“宏大叙事”的作品前就做足了功课。但路遥所坚持的现实主义创作方法,在当时被文学评论界认为“过于陈旧”。 在新的文学潮流面前,路遥并没有选择迎合,而是坚定地固守传统。路遥所以执拗 ..地坚持现实主义创作方法,按他的说法:“生活和题材决定了我应采用的表现手法,文学的‘先进’不是因为描写了‘先进’的生活,而是对特定历史进程中的人类活动作了准确而深刻的描绘。在中国这种一贯的文学环境中,独立的文学品格自然要经受重大考验。在这种情况下,你之所以还能够坚持,是因为你的写作干脆不面对文学界,不面对批评界,而直接面对读者。只要读者不遗弃你,就证明你能够存在。” 就这样,路遥以极大的艺术自信向着既定的目标前行,抱病 ..完成了《平凡的世界》的创作。198年12月30日,路遥给时任《文学评论》常务副主编蔡葵的信中,再次明确地宣誓了自己现实主义的创作观:“当别人用西式餐具吃中国这盘菜的时候,我并不为自己仍然拿筷子吃饭而害臊……” 事实上,路遥用最在乎读者的创作方法为读者做出的“这盘菜”,果真赢得了大众的好评。《平凡的世界》于1991年3月荣获第三届茅盾文学奖,其时的路遥仍保持着高度清醒的头脑,他强调“全身心地投入到生活之中,在无数胼手胝足创造伟大历史、伟大现实、伟大未来的劳动人民身上领悟人生大境界、艺术大境界,应该是我们毕生的追求”。 路遥是地道的陕北农民的儿子,陕北文化大气、包容、担当、进取、利他的特点给予其特殊的熏陶与滋养。他懂得自己的艺术创作在本质上与父亲的劳动并无二致,并由此生发出许多至理名言:如“像牛一样劳动,像土地一样奉献”“有耕种才有收获;即使没有收获,也不为此而终生遗憾”……这些具有农民哲思的人生箴言,是路遥这位有着深刻农民情结与土地情结的作家人生体悟的真实流露,这也是他长期思考人生的出发点与落脚点。由此,他才有“作家的劳动,绝不仅是为了取悦于当代,更重要的是给历史一个深厚的交代”的响亮声音。 《平凡的世界》真实地记录了那个大转型时期,承担了“历史书记官”的功能;小说所传达出的精神价值,是对中华民族千百年来“自强不息、厚德载物”精神传统的继承,提供了鼓舞读者向上与向善的正能量。小说中的人物成为改革开放大潮下芸芸众生的缩影,人生充满挫折但自强不息,出身卑微但敢于追求爱情。《平凡的世界》重构了中国社会的精神食粮,温暖了无数人心。它尊重了大众并引导了大众、提升了大众,让无数读者

北京四中2013-2014学年下学期高一年级期中考试数学试卷

北京四中2013-2014学年下学期高一年级期中考试数学试卷 卷(Ⅰ)满分100分,卷(Ⅱ)满分50分,共150分 考试时间120分钟 卷(Ⅰ) 一、选择题(本大题共10小题,每小题5分,共50分) 1. 若0a <、0b >,则下列不等式中正确的是( ) A. a b > B. 22a b < C. < D. 11 a b < 2. 直线10x y ++=的倾斜角、在y 轴上的截距分别是( ) A. 45°、1 B. 45°、—l C. 135°、1 D. 135°、—1 3. 等比数列{}n a 中,11 9a =,59a =,则3a =( ) A. 1 B. 3 C. ±1 D. ±3 4. 直线经过坐标为(1,0)的点,且与直线220x y --=平行,该直线的方程是( ) A. 210x y -+= B. 210x y --= C. 210x y +-= D. 220x y +-= 5. 函数1 ()(2)2f x x x x =+>-在x a =取最小值,则a =( ) A. 4 B. 3 C. 1 D. 1+6. 在△ABC 中,sin :sin :sin 3:5:7A B C =,则△ABC 的最大角等于( ) A. 56π B. 34π C. 23π D. 3π 7. 数列{}n a 的前n 项和为n S ,若21 n a n n =+,则10S =( ) A. 1 B. 11 12 C. 10 11 D. 9 10 8. 在△ABC 中,45B =?,b =c =A =( ) A. 15° B. 75° C. 75°或105° D. 15°或75° 9. 数列{}n a 的前n 项和29n S n n =-,若58k a <<,则k =( ) A. 6 B. 7 C.8 D.9

2020-2021年北京四中高一(上)期中物理含答案

2020北京四中高一(上)期中 物理 一、单项选择题(本大题共8分,每小题3分,共24分。) 1、关于力,下列说法中正确的是 A.只有相互接触的物体间才能产生力的作用 B.重心是物体所受重力的等效作用点,重心一定在物体上 C.弹力是接触力,两个互相接触的物体一定会产生弹力 D.静止的物体也可以受到滑动摩擦力 2、ab为一圆周的直径,一物体先由a点沿圆周运动到b点,再由b点沿另一半圆周回到a点。在这两个运动的过 程中,物体的 A.位移和路程都相同B.位移和路程都不相同 C.位移相同,路程不相同D.位移不相同,路程相同 3、下列“画阴影”的物体受力分析正确的是 4、两个共点力作用于一个物体上,力的方向可以任意调节,其中一个力为20N,另一个力是F,它们的合力是 50N。则F的大小不可能的是 A.20N B.30N C.40N D.50N 5、中国飞人刘翔在第十一届全运会男子110米栏的比赛中,以13秒34的成绩如愿摘金,完美实现了王者归来, 关于比赛的下列说法中正确的是 A.刘翔在110米中点的速度一定等于8.2m/s B.刘翔在13秒34的中间时刻的速度一定等于8.2m/s

C.刘翔在110米终点的速度一定等于8.2m/s D.刘翔比赛中的平均速度约是8.2m/s 6、舰载机通过弹射系统获得初速度,再利用自身发动机在航空母舰的跑道上加速,进而飞离航空母舰。某型号的 舰载机在航空母舰的跑道上加速时,发动机产生的最大加速度为5m/s2,起飞所需的速度为50m/s,跑道长只有90m。为了使飞机能正常起飞,弹射系统使飞机获得的初速度至少为 A.40m/s B.35m/s C.32m/s D.30m/s 7、北京地下铁道某电气列车,以12m/s的速度行驶。快进站时司机刹车使列车做匀减速直至停住。加速度大小为 0.5m/s2。那么从刹车开始经30s列车通过的位移大小是 A.135m B.144m C.180m D.360m 8、如图,小球用细绳系住,绳另一端固定于O 点。现用水平力F缓慢推动斜面体,小球在斜面上无摩擦地滑动, 细绳始终处于拉直状态,当小球升到接近斜面顶端时细绳接近水平,此过程中斜面对小球的支持力N以及绳对小球的拉力T的变化情况是 A.N逐渐减小,T逐渐增大 B.N逐渐减小,T逐渐减小 C.N逐渐增大,T先增大后减小 D.N逐渐增大,T先减小后增大 二、多项选择题(本大题共6小题。每小题4分,共24分。在每小题给出的四个选项中,有多个选项正确,漏选 得2分,错选不得分。请将答案填涂在答题卡上) 9、下列关于加速度和速度的说法是正确的是 A.物体的速度变化越大,加速度一定越大B.物体的速度变化越快,加速度一定越大 C.物体的加速度增大,速度可能减小D.物体的加速度增大,速度一定增大 10、甲、乙两物体沿同一直线运动,它们的x—t图如图所示。由图像可知

北京四中高一上学期期末考试地理试题(含答案)

北京四中高一上学期期末考试地理试题(含答案) 第Ⅰ卷(选择题,共60分) 一、单项选择题:本卷共40小题,每小题1.5分,共60分。 1.读下图,下面天体系统层次简图中与②④⑤对应的是() A.太阳系、银河系、总星系B.太阳系、河外星系、总星系 C.地月系、太阳系、银河系D.太阳系、银河系、河外星系 2.晴朗的夜晚,我们用肉眼看见的满天星星绝大多数是() A.恒星B.行星C.卫星D.流星 3.太阳的能量来源是() A.黑子和耀斑爆发时放出的强烈射电B.太阳风抛出的太阳粒子流 C.放射性元素衰变产生的热能D.内部物质的核聚变反应 读下图,完成4~6题。 4.图中甲、乙、丙、丁四点中,与诗句“坐地日行八万里,巡天遥看一千河”最吻合的地点 是() A.甲B.乙C.丙D.丁 5.图中四地的自转线速度() A.甲>乙>丙>丁B.乙>丙>甲>丁 C.丙>乙>丁>甲D.丁>丙>乙>甲 6.图中四地的自转角速度() A.甲>乙>丙>丁B.乙>丙>甲>丁 C.丙>乙>丁>甲D.丁=丙=乙=甲 7.右图能正确表示地球自转方向的是

() A.a、b B.a、c C.a、d D.b、d 8.当北京时间为19点时,纽约(西五区)的区时是() A.8点B.12点C.13点D.6点 9.昼夜交替(周期为24小时)产生的原因与下列 哪些因素有关() ①地球本身不发光也不透明 ②地球是太阳系中唯一有生命的天体 ③地球不停地自转 ④太阳的照射 A.①②④B.①②③C.①③④D.②③④10.下列自然现象与太阳辐射无关的是:() A.生物的形成B.大气和水体的运动 C.煤、石油的形成D.火山的喷发 我国史籍记载,汉成帝河平元年,“三月乙末,日出黄,有黑气,大如钱,居日中央”。 据此回答11--13题。 11.史籍中描述的“黑气”是指() A.耀斑B.黑子C.太阳风D.日珥 12.这种现象发生在太阳大气层的 A.光球层B.色球层C.日冕层D.大气层之外13.产生这种现象的原因() A.“黑气”区域是光球表面的低温区域B.“黑气”区域是光球表面的高温区域C.“黑气”区域是色球表面的低温区域D.黑气”区域是色球表面的高温区域14.关于太阳活动的正确叙述是:() A.主要类型是太阳黑子和太阳风 B.耀斑爆发是太阳活动最激烈的显示 C.太阳黑子多的时候,通常耀斑也多,但它们出现的地方不一样 D.太阳黑子的变化具有明显的周期性,耀斑没有周期性 15.我们日常生活中所说的一天是指() A.地球自转的真正周期B.地球公转的周期 C.一个太阳日D.一个恒星日 16.下列四幅图中(阴影表示夜半球),能正确表示北半球夏至日的是() A.A B.B C.C D. D 17.下列河岸中,冲刷严重的是(箭头表示水流方向)()

2019海淀高三期末语文试题及答案

海淀区高三年级第一学期期末练习 一、本大题共6小题,共25分。 阅读下面的材料,完成1-6题。 材料一 一篇文章的优劣,取决于能否映射现实、有无社会观照。倘若文风浮夸自大,标题一’晾 -乍,事实似是而非,这不仅唐突了读者,也丧失了传播价值,污染了舆论生态。 最近在网上,“美国害怕了”“日本吓傻了”“欧洲后悔了”之类的文章,总能赚取不少莫名点击。然而,纵观这些所谓“爆款”文章,其实却了无新意,一味夸大,文风堪忧。比如,有的任意拔高、以偏概全,高喊《在这些领域,中国创下多个“世界第一”!无人表示不服》;有的自我安慰、贻人口实,鼓吹《别怕,我国科技实力超越美国,居世界第一》;有的内容一厢情愿、断章取义,将国外的只言片语,放大成“中国在世界舞台上占据中心位置…中国现在是全球第一经济体”等声音。 这些“雄文”的共性,一无事实骨架,二无内容血肉,三无思想含量,徒有浮躁外壳,经不起一点风吹日晒。要知道,文章不会因为浮夸而增色,国家也不会因为自大而变强。挑动极端情绪、肆意传播偏见,容易造成公众走进夜郎自大、自吹自擂的狂妄误区,导致社会陷入信息碎片化、思维程序化的认知闭环。 新闻学有一种观点认为,“最好的编辑一定是个营销专家”。而某些媒体,其浮夸自大的文风,无异于“吸晴涨粉”的气球,一触即破。这类文章的始作俑者,把标题当作一枚带着诱饵的鱼钩,诸如“全球首款”“世界第一”的标题党,给标题大加“刺激”的猛料,以博人眼球,吊人胃口。然而,新闻不是爽文。如果只讲营销不讲营养,只要眼球不讲责任,即使一时流量爆棚,也是在误导大众。 有网友感慨,进入了自媒体时代,新闻越来越多,离真相却越来越远。的确,浮夸自大的文风套路,看似抄了“10万+”的近路,实则误入新闻生产的歧路。据统计,去年新媒体运营行业人数超过300万,各类机构对内容创业者的投资金额超过50亿元,可谓既有前途,又有“钱途”。然而,面对如此大好的形势,自媒体要想创作自如,就更需恪守自律。倘若毫无底线蹭热点,肆无恩障造噱头,结果只能是漫出道德水位,偏离法治轨道,消解媒体公

北京四中10-11第一学期高一数学期中测试

北京四中2010-2011学年度第一学期期中测试高一年级 数学试卷 卷(Ⅰ) 一、选择题:本大题共10小题,每小题5分,共50分 1. 若集合{}0123A =, ,,,{}124B =,,,则集合A B =( ) A .{}01234, ,,, B .{}1234,, , C .{}12, D .{}0 【解析】 A {}01234A B =,,,, 2. 函数()lg(1)f x x =-的定义域是( ) A .(2)+∞, B .(1)+∞, C .[)1+∞, D .[)2+∞, 【解析】 B 10x -> ∴1x > 3. 下列各选项的两个函数中定义域相同的是( ) A .2 ()f x = ,()g x = B .()x f x x = ,()1g x = C .()2f x x =-,()g x = D .()f x =()0g x = 【解析】 C 对于A ,()f x 的定义域为0x >,()y x 的定义域为R 对于B ,()f x 的定义域为0x ≠,()y x 的定义域为R 对于D ,()f x 的定义域为1x =,()y x 的定义域为R 4. 下列函数中值域是(0)+∞,的是( ) A .2()32f x x x =++ B .21()4 f x x x =++ C .1 ()|| f x x = D .1 ()12 f x x = + 【解析】 C 对于A , 2231()32()24f x x x x =++=+-,()f x 的值域为1 [,)4 -+∞. 对于B ,2211 ()()42 f x x x x =++=+,()f x 的值域为[0,)+∞. 对于C ,()f x 的值域为 (0)+∞,. 对于D ,()f x 的值域为 R . 5. 函数4 y x = 是( ) A .奇函数且在(0)-∞,上单调递增

北京市高一化学上学期期末考试试题

北京四中2017-2018学年上学 期高一年级期末考试化学试卷 (满分150分,考试时间100分钟) 可能用到的相对原子质量:H 1 C 12 N 14 O 16 Na 23 Cl 35.5 Br 80 Fe 56 I卷 一、选择题(每小题只有 .......,1-10题每小题3分,11-18题每小题2分,共..1.个选项符合题意 46分) 1. 下列物质与危险化学品标志的对应关系不正确的是 A B C D 乙醇甲烷浓硫酸氢氧化钠 2. 氧化还原反应的实质是 A. 电子转移 B. 元素化合价变化 C. 氧元素参加反应 D. 原子重新组合 3. 下列物质中,属于电解质的是 A. 稀盐酸 B. 铜丝 C. 氯化钠固体 D. 蔗糖 4. 下列冶炼金属的方法错误 ..的是 A. 加热分解HgO制金属Hg B. 高温下用CO还原赤铁矿炼铁

C. 电解NaCl 溶液制金属Na D. Fe 和4CuSO 溶液湿法炼铜 5. 目前,很多自来水厂用氯气杀菌、消毒。下列关于氯气的性质描述正确的是 A. 黄绿色 B. 无毒 C. 无味 D. 难溶于水 6. 下列氯化物既能由金属和氯气直接化合制得,又能由金属和盐酸反应制得的是 A. 2CuCl B. 2FeCl C. NaCl D. 3FeCl 7. 下列物质露置于空气中不易变质的是 A. NaCl 溶液 B. 4FeSO 溶液 C. 漂白粉溶液 D. 氯水 8. 下列关于钠及其化合物性质的叙述,正确的是 A. 钠与硫酸铜稀溶液混合制备金属铜 B. 氧化钠和过氧化钠都能与水反应,生成物完全相同 C. 过氧化钠是淡黄色固体,可用作呼吸面具的氧气来源 D. 等质量的碳酸钠和碳酸氢钠分别与足量盐酸反应,产生气体质量相同 9. 现有一瓶甲和乙的混合物,已知甲和乙的某些性质如下表所示: 物质 熔点/℃ 沸点/℃ 密度/(3 /cm g ) 水中的溶解性 甲 -98 57.5 0.93 可溶 乙 -84 77 0.90 可溶 据此,将甲和乙互相分离的方法是 A. 蒸馏法 B. 升华法 C. 萃取法 D. 过滤法 10. 下列离子方程式书写正确的是 A. 氯气通入氯化亚铁溶液中:+-+ +=+3222Fe Cl Cl Fe B. 澄清石灰水中通入少量2CO :O H CaCO CO OH Ca 23222+↓=++-+ C. 大理石与稀盐酸反应:O H CO H CO 2223 2+↑=++- D. 碳酸氢钠溶液与稀盐酸反应:O H CO CO H 2223 2+=+- + 11. 对比3NaHCO 和32CO Na 的性质,下列说法中正确的是 A. 常温下在水中溶解性:323CO Na NaHCO > B. 热稳定性:323CO Na NaHCO <

2019海淀高三期中语文答案

海淀区高三年级第一学期期中练习 语文参考答案及评分标准 2019.11 一、本大题共6小题,共21分。 1.(3分)B 2.(3分)C 3.(3分)C 4.(3分)D 5.(3分)C 6.(6分) 答案示例: 打卡地点①:航站楼核心区的一根C型柱前 推荐语:C型钢柱应是本次人文·科技之旅的重点参观项目。我建议同学们可以在航站楼核心区的任一根C型柱前打卡留念,驻足参观。远观,我们可以感受C型柱支撑屋顶,为航站楼带来的开阔感,在宏大与舒适中体会人文机场的内涵。近看,我们可以观察C型柱连接屋面部分特殊的采光设计,观察它与屋顶和地面间的支撑结构。C型柱设计、施工中的科技含量,能让同学们更好的感受到中国制造的独特魅力。 打卡地点②:京雄城际铁路大兴机场高铁站 推荐语:本次游学活动,我建议从北京西站乘坐京雄城际高铁前往大兴机场。游学首站打卡大兴机场高铁站。刷二维码乘车,同学们可以感受到高铁的智能服务。“凤栖梧桐”主题文化墙前拍摄集体照,大家可以留下见证京津冀协同发展的纪念。由高铁站前往航站楼的过程中,大家还可以体验旅客的真实感受。大兴高铁站内清晰的路线导引,与机场航站楼无缝衔接的标识,和机场相同的装修风格,都会让你感到方便、快捷与舒适。 【评分标准】每条推荐语3分,其中主题突出2分(人文、科技体现其一即可),语言简洁、有说服力1分。 二、本大题共7小题,共29分。 7.(3分)A 8.(3分)B 9.(3分)①B ②C ③A(每空1分) 10.(3分)D 11.(5分)①(3分)参考译文:向百姓横征暴敛【评分标准】“厚”“措敛”“乎”,翻译正确,各1分。 ②(2分)参考译文:音乐影响人深远,(它)教化人迅速 【评分标准】“入”“化”,翻译正确,各1分。“也”表停顿,若译为连词,扣1分。 12.(6分)参考答案: 墨子反对“兴乐”的理由:兴乐会加重百姓负担,是不仁的行为(1分);兴乐对于改善百姓生活、国家平定祸乱没有具体作用(2分)。 荀子认为应该“兴乐”的理由:音乐是人情的自然流露,君王通过音乐可以引导人心向善(1分);音乐能够使社会安定、人际关系和谐(1分);音乐能起到教化百姓,团结民众的作用,有利于君王的统治(1分)。 【评分标准】意思对即可。 13.(6分)答案要点: 乐要以仁为基础;乐与礼能够起到完善人格的作用;乐要兼具道德性和艺术性。 【评分标准】每点2分。意思对即可。 三、本大题共4小题,共18分。 14.(3分)D 15.(3分)B 16.(6分)答案要点: 被贬谪后,于羁旅途中的孤独感伤。对时光流逝的愁苦无奈。对归隐生活的向往。面对世俗的清高孤愤。 【评分标准】每点2分(情感内容1分,诗句分析1分)。答出任意三点即可得6分。言之成理即可。 17.(6分)参考答案: ①庶竭驽钝②攘除奸凶③三顾频烦天下计④两朝开济老臣心 ⑤身既死兮神以灵⑥魂魄毅兮为鬼雄(“子魂魄兮为鬼雄”亦可) 【评分标准】6分,每句1分。句中有错别字、多字、少字,该句不得分。 四、本大题共5小题,共22分。 18.(2分)B 19.(3分)C 20.(5分)答案示例:

北京四中2020-2021高一上学期期中考试

北京四中2020-2021高一上学期期中考试 一.选择题 1.已知全集U ,集合{1,2,3,4,5},{3,2}A B ==-,则图中阴影部分表示的 集合为 A.{3} B.{3,2}- C.{2} D.{2,3}-2.不等式20 1x x -≤+的解集是 A.(,1)(1,2]-∞-?- B.[1,2]- C.(,1)[2,)-∞-?+∞ D.(1,2] -3.下列函数中,在区间(0,)+∞上为减函数的是 A.22y x x =- B.||y x = C.21y x =+ D.y = 4.已知函数2()51f x x x =-+,则下列区间中一定包含()f x 零点的区间是 A.(2,1)-- B.(1,0)- C.(0,1) D.(1,2) 5.若函数()f x 是偶函数,且在区间[0,3]上单调递增,则 A.(1)(2)(3)f f f ->> B.(3)(1)(2) f f f >->C.(2)(1)(3) f f f >-> D.(3)(2)(1)f f f >>- 6.已知12,x x 是方程220x -+=的两根,则2212x x += A.2 B.3 C.4 D.5 7.已知,,a b R ∈且,a b >则下列结论中正确的是 A.1a b > B.11a b < C.||||a b > D.33a b >8.“2a =”是“函数()||f x x a =-在区间上[2,)+∞为增函数”的 A.充分不必要条件 B.必要不充分条件 C.充分必要条件 D.既不充分也不必要条件 9.向某容器中匀速注水时容器水面高度h 随时间t 变化的函数()t f h =的图像如右图 所示,则容器的形状可以是

北京四中2019-2020高一上学期英语期末试题(Word版,含答案)

2019北京四中高一(上)期末 英语 第二部分:英语知识运用(共两节, 满分35分) 第一节语法填空(共15小题;每小题1分, 共15分) 从A、B、C、D四个选项中, 选出可以填入空白处的最佳答案, 并在答题纸 上将该项涂黑。 16. With my glasses ________ (break), I will have to buy a new one. 17. It just isn't fair. _________I was working as a waiter last month, my friends were lying on the beach. 18. In some parts of London, missing a bus means _______ (wait) for another hour. 19. This school is only for the children _________ first language is not English. 20. The new English teacher impressed us ________ his sense of humor and rich knowledge. 21. 一Ann is in hospital. 一Oh, really? I ______ know. I _______ go and visit her. A. didn't; am going to B. don't; would C. don't; will D. didn't; will 22. The police are offering a big _________ for information about the murder case. A. award B. prize C. reward D. money 23. Now the Great Wall has become one of the ________ (place) of interest not only to the Chinese people, but also to people from all over the world. 24. Qi Baishi's style of painting often leaves the audience __________ (guess) and (make)them use their imagination. 25. It's already ten o'clock. My father ________ be sleeping now. 26. —Why can't you finish your work on time? —Well, the heavy rain has added ________ a lot of difficulty to our work. 27. They didn't want to come with us first but we _________ persuade them. 28. Looking up, I saw her eyes ______ (fix) on me in curiosity. 29. The classic superheroes like Spiderman or Superman _________ (date) back to many decades ago, but they are still very popular among the youths. 30. We already knew that not everyone would ________ our enthusiasm for this plan. A. relate B. share C. impress D. reject

相关文档
最新文档