河北省唐山一中2020高三英语下学期高考仿真试题(一) 新人教版

河北省唐山一中2020高三英语下学期高考仿真试题(一) 新人教版
河北省唐山一中2020高三英语下学期高考仿真试题(一) 新人教版

唐山一中2020年高考仿真英语试题(一)

说明:

1.考试时间120分钟,满分150分。2.将卷Ⅰ答案用2B铅笔涂在答题卡

上,卷Ⅱ用蓝黑钢笔或圆珠笔答在试卷上.。3.Ⅱ卷卷头和答题卡均填涂本

次考试的考号,不要误填学号,答题卡占后5位。

卷Ⅰ(选择题共115分)

第一部分听力(总分30分)(略)

第二部分英语知识运用(共两节,满分45分)

第一节单选填空(共15 小题,每小题1分,满分15分)

从A、B、C、D四个选项中,选出可填入空白处的最佳选项,并在答题卡上将该项涂黑。

21. It is known that water is not _____ endless resource, nor _____ that can be made once more.

A. the; 不填

B. an; one

C. an; that

D. 不填; one

22. The environmentalists said wild goats’ _____ on the vast grasslands was

a good indication of the better environment.

A. escape

B. absence

C. attendance

D. appearance

23. I wanted some string but there was _____ in the house.

A. nothing

B. none

C. no one

D. not one

24. On an annual basis, the output of the construction sector this year is much smaller than _____ of last year as there is a steep decline by 11.1%.

A. what

B. those

C. that

D. it

25. I guess we’ve already talked about this before but I’ll ask you again just _____.

A. by nature

B. in return

C. in case

D. by chance

26. The first time he had a dinner with some high officials, he felt _____ uneasy.

A. a sort of

B. sort of

C. of a sort

D. all sorts of

27. Stella was disappointed to find her new plan _____ and fell into great depression.

A. set down

B. turned down

C. calmed down

D. written down

28. Had it been possible I would have gone to the movies but I _____ too busy.

A. had been

B. am

C. was

D. would be

29. I was on the highway when his car went past, followed by a police car. They _____ at least 150km an hour.

A. should have been doing

B. would have done

C. could have done

D. must have been doing

30. _____ that the government can lead them out of the financial crisis, people are optimistic about the future of the country.

A. Convincing

B. Convinced

C. To convince

D. Having convinced

31. If you don’t persuade him to accept it, _____ make him see the importance of it.

A. if only I don’t

B. nor will I

C. nor I don’t

D. nor do I

32.Although Jim had expected something special from Della, he was still

surprised by _____ he saw.

A. what

B. which

C. that

D. How

33. According to the report, as many as 50 percent of patients do not take medicine _____ directed, _____ has drawn doctors’ attention.

A. when; it

B. as; what

C. that; and

D. as; which

34. Jack is clever and works hard at his lessons. _____.

A. So is Mike

B. So does Mike

C. It was the same with Mike

D. So it is with Mike

35.—Shall I lock the lab before I leave?

—_____. I’ll check it myself late r.

A. Go ahead

B. No problem

C. No hurry

D. Don’t bother

第二节完形填空(共20小题;每小题1.5分,满分30分)

阅读下面短文,从短文后所给各题的四个选项(A、B、C、D)中,选出可以填

入空白处的最佳选项,并在答题卡上将该项涂黑。

As a teacher, my daily activity involves driving to a new school almost every day.

On one particular day, I was teaching in a very 36 classroom. I was managing behavior all morning, and by lunchtime I knew I needed a coffee to 37 the afternoon. So during my lunch break, I drove to a nearby square to get a coffee. Upon returning to the 38 , I realized I had locked my phone and my 39 inside! I had about 15 minutes to get back to the 40 , which was a good five –minute drive. If I ran back really quickly, I could 41 it. But it was winter, and a sudden fall on the ice would only make the situation much 42 .

So I hurried into a McDonald’s in the same square, and 43 the man

at the counter, who happened to be the 44 , to call a taxi for me. After

I 45 explained my situation to him, he rushed inside to make the phone

46 I waited anxiously in the restaurant. I had less than 10 minutes to 47 to my school at this point.

A moment later, the manager returned 48 to tell me that the line was

49 , and that he had not been able to 50 the taxi yet. I think both 51 and fear could be seen in my face.

Without a thought, he grabbed his coat and 52 to drive me to the school. Without hesitation, I followed him into his car and got back to the classroom with two minutes to 53 before the bell rang!

This experience made me 54 that out of every seemingly hopeless situation, there is the opportunity for acts of kindness to happen, which has a(n) 55 influence on those who receive them.

36. A. modern B. difficult C. comfortable D. old

37. A. survive B. enjoy C. forget D. remember

38. A. shop B. bar C. counter D. car

39. A. textbooks B. cards C. keys D. gloves

40. A. home B. school C. party D. restaurant

41. A. do B. see C. make D. meet

42. A. worse B. more different C. easier D.

more stable

43. A. advised B. arranged C. ordered D. asked

44. A. manager B. secretary C. guest D. waiter

45. A. slowly B. briefly C. effectively D. successfully

46. A. since B. unless C. while D. if

47. A. get across B. get around C. get over D. get back

48. A. yet B. only C. comfortable D. old

49. A. busy B. broken C. full D. ready

50. A. get B. repair C. drive D. show

51. A. excitement B. anger C. hopelessness D. surprise

52. A. offered B. refused C. wanted D. hesitated

53. A. wait B. spare C. waste D. spend

54. A. doubt B. argue C. regret D.

realize

55. A. bad B. harmful C. unimaginable D. indirect 第三部分:阅读理解(共两节;满分40分)

第一节(共15小题:每小题2分,满分30分)

阅读下列短文,从每题所给的四个选项(A、B、C、D)中,选出最佳选项,并在答题卡上将该项涂黑。

A

A few days ago I got a call from my old college friend whom I haven’t seen for a very long time. The topic, which was about all the good old times that we had changed to a touching story when he started talking about his father.

His father’s declining health made him stay at the hospital. Because of his illness, his father suffered from insomnia(失眠) and often talked to himself. My friend, who had not been able to sleep for a few days as he had to keep watching his father’s condition, became irritated and told his father to keep silent and try to get some sleep. His father said that he really

wanted to sleep well because he was very tired and told my friend to leave him alone in the hospital if he did not want to keep him company.

After his father finished talking, he fell unconscious(失去知觉) . My friend was very sorry for speaking the ill words towards his father. My friend, whom I knew as a tough person, cried as a baby on the other end of the telephone. He said that from that moment on, he prayed every day, asking God to let his father wake up from his coma. He promised himself that whatever words came out from his father’s mouth after he regained his consciousness, he would gladly take them. His only hope for God was to give him a chance to rectify his past mistake.

Often, we complain when we have to accompany or watch over our parents for years, months, days, hours or even minutes. But do we realize that our parents keep us company and watch over us for as long as we (or they)live? From the day we were born to our adulthood, and even when deaths come to us, they are always at our side.

Imagine how sad our parents will be when they hear a seemingly innocent word of “no” come out from our mouths. We can make promises to ourselves that from now on there will be no more complaints that come out from our mouths when we have to watch over or accompany our parents. No more complaints come out from our mouths when we feel that our parents have treated us like little children. There are so many unlucky ones who have neither fathers nor mothers. They long to have the things that we most complain about, but never have them.

Actually, it takes only a second to think and light the lamp that will bring us to a place where peace is dwelling.

56. Which of the following word can be used to describe the writer’s friend?

A. Sad

B. Sorry

C. Regretful

D. Pitiful

57. What does the underlined word “rectify” mean in Para. 3?

A. p ut…right

B. r ecite…by heart

C. realize

D. recognize

58. What does the writer want to tell us in the passage?

A. Your parents will keep talking to themselves when they are old.

B. Be good to your parents when you still have the chance.

C. You will regret in your life if you don’t show your kindness to your parents.

D. It is not easy to take good care of sick old parents.

B

After successfully serving their term for 4 years, military service men and women are given the choice to stay in the military or return to civilian life.

For some, having to readjust to civilian life is one of the most challenging assignments our returning soldiers and marines(水兵)will ever to undertake. While people may think readjusting should be simple, they must take into consideration all physical and mental stress our servicemen went through. Post-traumatic Stress Disorder(创伤后应急障碍),or PTSD, is a mental disorder that can occur following the experience or witnessing of life-threatening events such as military combat(打仗).

Most survivors of trauma return to normal given a little time. In the military, the marines are given a two-week course on how to return to civilian life. Unfortunately, some will have stress reactions that do not go away on their own, or may even get worse over time. These individual may develop PTSD. People who suffer from PTSD have difficulty sleeping because they are often

reliving the experience through nightmares(梦魇)and flashbacks, and feel deserted or often stand off, and these symptoms can be severe enough and last long enough to significantly damage the person’s daily life.

Fullerton College, like most colleges, has its own Veteran’s(老兵)Office. Ray Bustos has been running the office for 3 years. Bustos acts as a liaison (联络) for the school and the veteran students. He makes sure the veterans returning to school get the right benefits. There are various types of financial aid for soldiers and marines. He strongly encourages the use of the Veteran Affairs website.

The website is very informative and extremely helpful for veterans as well as for friends and relatives of veterans who want to learn more.

59. One purpose of the writer in writing the passage is ________________.

A. to introduce some methods to cure PTSD

B. to instruct PTSD patients to return to civilian life

C. to recommend a website to veterans and people concerned

D. to give military service men and women advice on civilian life

60. What problems will some returning soldiers and marines meet with?

A. How to readjust to civilian life.

B. how to get rid of mental diseases.

C. How to get along with PTSD patients.

D. How to return to school for benefits.

61. Which of the following is true about Ray Bustos?

A. He’s a veteran who has just come back from a military combat.

B. He runs Fullerton College with a veteran office.

C. He’s in charge of an office dealing with veteran affairs.

D. He provides a lot of financial aid for soldiers and marines.

62. The best title for the passage is __________.

A. PTSD: Killer of A Civilian Life

B. The Last Assignment For All Military Persons

C. How to Overcome PTS

D.

D. Ready for a Civilian Life?

C

A brand is a name, word, sign, symbol, design, or a combination of these, intended to identify the goods or services of a company or a group of companies. Another purpose of a brand is to contrast one company from another. The most important skill of professional marketers is the ability to create, maintain, protect, and enhance the brands of their products and services. Branding has become so important that today hardly any company or product is without one. Therefore, brand management is an increasingly important element in marketing.

Brand power refers to the relative strength of a company’s brand in the minds of consumers, and can influence consumers’ choice of products. Brands are powerful to the extent that they give high brand loyalty and strong brand associations, name recognition, perceived quality and other assets to a comp any. A strong brand can be one of a company’s most important assets.

High brand power provides a company with many competitive advantages.

A powerful brand enjoys a high level of consumer brand awareness and loyalty. Because consumers expect stores to carry the brand, the company has more bargaining power when negotiating with retailers (零售商). And because the brand name brings high credibility, a company with a strong brand can more easily launch new products with the same brand name.

Many companies use the advantage of a strong brand power strategically to expand their business. When a company introduces an

additional item with a new flavour, form, colour or package size in a given product category and under the same brand name, it is called a line extension. Another strategy is called brand extension. This involves the use of a successful brand name to launch new or modified products in a new category, thereby employing brand recognition in order to increase sales of new products.

Brand recognition is certainly important. Because consumers often hold long-standing perceptions about brands, high brand power ensure a company continued sales of its products.

63. What does the word “assets” in the 2nd paragraph mean?

A. points

B. advantages

C. aspects

D. elements

64. All of the following statements are the advantages of a high brand power EXCEPT that______.

A. a high brand wins the loyalty of consumers

B. a high brand usually sets a much higher price

C. it’s easy for a high brand company to launch new products

D. a high brand company is more competitive when doing business with retailers

65. A brand extension ______.

A. happens when the company is developing a new product

B. means the expansion of a company’s business in its established field

C. takes place when the company introduces a similar item but with a new colour

D. refers to the use of an established brand name to promote a new product in a new category

66. What might be the best title of this passage?

A. Brand Power

B. Famous Brands

C. Company Brands

D. Brand Products

D

TEENSGIVING in SPRING 2020

Frequently Asked Questions

What is TEENSGIVING?

TEENSGIVING is an exciting event where hundreds of New York City teens gather together annually for a remarkable day of community service. This year, TEENSGIVING in SRING 2020 participants will once again better New York City and impact thousands of lives!

When is TEENSGIVING in SPRING2020?

SUNDAY, APRIL 25, 2020

Where is TEENSGIVING?

All over New York City. Everyone will meet at the 92nd Street Y (92nd and Lexington) at 9:00 AM for the event kick-off. Then, all TEENSGIVING volunteers will disperse across the city to work with our partnering agencies where they will make a HUGE difference and have fun!

Who participates in TEENSGIVING?

Hundreds of teenagers from around the city. Teens come from the 92nd Street Y, various city schools, youth groups, and organizations in the area. In addition, many adult volunteers (aged 21 and older) will donate their time to TEENSGIVING in SPRING 2020.

What projects do participants do at the agencies?

Sample projects include painting park benches, planting gardens, visiting and playing with underprivileged children, assembling craft kits for children in hospitals, assisting at animal shelters, working at soup kitchens, delivering meals and celebrating with families at homeless shelters.

Do I get anything for participating in TEENSGIVING?

Yes! Everybody benefits! Teen volunteers will receive *6 hours* of community service credit, good towards honor society, high school graduation and college application requirements. Adult volunteers will be “thanked” with a light breakfast, a gift certificate for their troubles, and the satisfaction of helping our city’s youth contribute to their community. In addition, all teen and adult volunteers will receive a cool TEENSGIVING in SPRING 2020 T-shirt.

This sounds awesome! How do I register for TEENSGIVING in SPRING2020? Interested teens and/or adults should e-mail the TEENSGIVING Coordinator Josh Hyman at jhyman@https://www.360docs.net/doc/e74814165.html, (subjet:TEENSGIVING) to receive more information and to register for this fantastic event!

**Teens can also contact their school’s Community Service Advis

or**

TEENSGIVING is sponsored by the 92nd Street Y.

67. TEENSGIVING is an event which is held ______.

A. from time to time

B. once every year

C. every two years

D. twice a year

68. Teenagers may do all the following in the event EXCEPT

______.

A. watering flowers

B. cooking

C. cleaning streets

D. taking care of animals

69. An adult volunteer may get _____ for his time devoted t o TEENSGIVING in SPRING 2020.

A. community service credit and a T-shirt

B. a high school certificate and a light breakfast

C. a T-shirt and a gift certificate

D. a gift certificate and community service credit

70. The writer’s purpose in writing this passage is to ____ ___.

A. inform readers of some frequently asked questions

B. introduce TEENSGIVING in SPRING 2020 to readers

C. encourage readers to ask more questions about TEENSG IVING

D. call on readers to participate in TEENSGIVING in SP RING 2020

第二节(共5小题:每小题2分,满分10分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。注意:涂卡时,如答题卡上没有E、F、G选项,请按如下方式填涂:选E涂AB;选F涂AC;选G涂AD。

In America, seldom do you go anywhere without hearing a principle called WIN-WIN. 71 However, as time goes by, I have gradually comprehended the meaning of WIN-WIN principle --- it is the attitude of seeking mutual benefit.When I was little, I used to play Chinese checkers(跳棋)which include two basic tactics(战术): 72 The other is to block the passages of your rival. Players may apply these two totally different approaches in the game, but the key for the player to win is to continuously create paths for him even if his opponent may take advantage of it. 73 Meanwhile, some player

may take another approach to prevent his opponent from moving forward at all costs. By this he may get a short-term benefit, but couldn’t fix attention on the final goal, thus he would never truly develop further.

74 Its core is to achieve your objective while giving other people some benefits, so there is no real loser. One example of applying the WIN-WIN principle is the voluntary system in the US. 75

It is quite usual that some people are too selfish and never take other people’s interests into consideration, while someone who really has courage to do something for the public is often called “foolish” or “stupid”. Actually helping other people can be of great delight to the helper, for he can also learn something crucial for his life such as sympathy, care, devotion, etc. So only if you take other people’s interests into earnest consideration can you assure your own gain.

A. Playing Chinese checkers really needs skill.

B. In the 1990s, a strategy called WIN-WIN became widespread in the western world.

C. It was important for me after I knew its meaning.

D. One is to create paths for yourself.

E. Most Americans advocate the spirit of social service and voluntary contribution.

F. It sounded strange to me at first.

G. Finally he can always reach the destination a few steps ahead of the other player.

卷Ⅱ(非选择题共35分)

第四部分写作(共两节,满分35分)

第一节:短文改错(共10小题;每小题l分,满分l0分)

假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文,

文中共有l0处语言错误,每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加:在缺词处加一个漏字符号(∧),并在其下面写出该加的词。

删除:把多余的词用斜线(\)划掉。

修改:在错的词下划一横线,并在该词下面写出修改后的词。

注意:1.每处错误及其修改均仅限一词;

2.只允许修改l0处,多者(从第11处起)不计分。

(试题内容见答题卡)

第二节 书面表达(满分25分)

假如你叫李华,你的美国笔友Johnson 想和家人来中国定居,请你帮他在A 、B 两个城市中做出选择。下面的图表是对这两个城市在就业、娱乐和环境等方面所作的对比。请你根据该表提供的信息用英语给他写封电子邮件,提出你的建议并说明理由。

注意:1.图表左边的数字说明人们对这两个城市的喜爱程度;

2.词数120左右。电子邮件的开头和结尾已为你写好,不计入总词数。

Johnson,

I’m so glad to learn that you and your family are coming to settle down in China. 020********

0e m p l o y m e n t e n t e r t a i n m e n t e n v i r o n m e n t

_______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ ______________________________________________________

Yours,

Li Hua

唐山一中2020年高考仿真英语试题(一)

参考答案

第二部分英语知识运用

第一节单选填空

21—25 BDBCC 26—30 BBCDB 31—35 BADDD

第二节完形填空

36—40 BADCB 41—45 CADAB 46—50 CDBAA 51—55 CABDC

第三部分:阅读理解

第一节56—58 CAB 59—62 CACD 63—66 BBDA 67—70 BCCB

第二节71—75 FDGBE

第四部分写作

第一节:短文改错

1. our→us

2. too→so

3. improving→improve

4. enrich→enriching

5. While→However

6. overuse→overusing

7. into→to

8. or→and

9. which∧thought: is 10. a good use

第二节书面表达

Dear Johnson,

I’m so glad to learn that you and your family are coming to settle down in China.

After a careful study of the information about the two cities, I suggest you choose to live in City A.

First, City A is a more popular city to live in. The environment in City A is better than that in City B and the climate there is very pleasant. Then, there are many places for entertainment where you can enjoy yourselves in your spare time. As for the employment, though the job opportunities are not so good as in City B, yet I don’t think it’s a problem for you as a

teacher of English.

In a word, I think City A is a better choice, but it’s up to you to decide. Hope to hear from you again.

Yours,

Li Hua

{高中试卷}河北唐山市高三期末考试理综试卷[仅供参考]

20XX年高中测试 高 中 试 题 试 卷 科目: 年级: 考点: 监考老师: 日期:

试卷类型:A 唐山市20XX一20XX学年度高三年级第一学期期末考试 理科综合能力测试 本试卷分第Ⅰ卷和第Ⅱ卷(非选择题)。第Ⅰ卷1至4页,第Ⅱ卷5至12页,共300分。 考生注意: 1.答题前,考生务必将自己的准考证号、姓名填写在答题卡上。考生要认真核对答题卡上粘贴的条形码的“准考证号、姓名、考试科目”与考生本人准考证号、姓名是否一致。 2.第Ⅰ卷每小题选出答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑,如需改动,用橡皮擦干净后,再涂选其它答案标号。第Ⅱ卷用黑色墨水签字笔在答题卡上书写作答,在试题卷上作答,答案无效。 3.考试结束后,监考员将试题卷、答题卡一并交回。 第Ⅰ卷 本卷共21小题,每小题6分,共126分。 可能用到的相对原子质量(原子量):H-1;C-12;N-14;O-16;Al-27;Cl-35.5;Sn -119 一、选择题(本题包括13小题,每小题只有一个选项符合题意) 1.下列关于核酸的叙述正确的是 A.噬菌体内的碱基有5种,核苷酸有8种 B.人体细胞质中的遗传物质由4种脱氧核糖核苷酸组成 C.叶绿体、线粒体和核糖体都含有DNA D.DNA聚合酶和RNA聚合酶的结合位点分别是DNA和RNA 2.新鲜马铃薯块茎中含有:淀粉9%~20%,蛋白质1.5%~2.3%,脂肪0.1%~1.1%。下列实验描述正确的是 A.马铃薯富含淀粉可作鉴定还原糖的实验材料 B.新鲜马铃薯块茎滴加过氧化氢溶液出现气泡 C.新鲜马铃薯块茎滴加苏丹Ⅲ染液呈现红色 D.煮熟的马铃薯块茎滴加碘液不会变成蓝色 3.右图是蝗虫细胞中同源染色体(A1和A2)的配对情况。下列关于此种变异判断错误的是 A.是染色体片段增加或缺失造成的 B.对蝗虫很可能是不利的 C.可通过光学显微镜观察到 D.会导致基因结构的改变 4.下列关于免疫的叙述错误的是 A.吞噬细胞在非特异性免疫和特异性免疫中均发挥作用 B.T细胞在体液免疫和细胞免疫中均发挥作用 C.浆细胞和B细胞在免疫过程中均能产生抗体 D.T细胞和B细胞均能增殖分化形成记忆细胞 5.下列实例中符合“随生长素浓度的降低而体现两重性”的是 A.去掉顶芽后侧芽处生长素浓度的变化

高三第一学期期中考试(化学)

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河北省唐山市2017届高三下学期第三次模拟考试理科综合化学试题Word版含答案

第I卷 本卷共21小题,每小题6分,共126分。 可能用到的相对原子质量:N-14 O-16 Na-23 S-32 Zn-65 7、下列说法正确的是 A.CO2的电子式为 B.浓H2SO4试剂瓶上应贴上危险警告标签 C.根据分散质微粒直径大小,可将分散系分为浊液,胶体和溶液 D.核内打8个中子的碳原子可表示为86C 8、N A为阿伏加德罗常数的值,下列说法中正确的是 A.22.4LNH3分子中含有3N A个N—H键 B.2.3 g Na完全与O2反应生成3.6 g产物时失去的电子数为0.1N A C.1 L0.1 mol·L-1蔗糖溶液中所含分子数为0.1N A D.常温常压下,46g NO2含有的原子数小于3N A 9、下列实验设计及其对应的离子方程式均正确的是 A.用FeCl3溶液腐蚀铜线路板:Cu + 2Fe3+= Cu2++2Fe2+ B.Na2O2 与H2O反应制备O2:Na2O2+H2O = 2Na++ 2OH-+O2↑ C.硫化钠水溶液呈碱性的原因:S2-+2H2O H2S↑+2OH- D.铝粉与NaOH溶液反应产生H2:2A1+2OH-+2H2O=2Al(OH)3↓+3H2↑ 10、用下图装置制备、净化、收集下表中的四种气体(a、b、c表示相应仪器中加入的试剂), 其中可行的是

11、M是中药狼把草的成分之一,具有消炎杀菌作用,其结构如图所示。下列叙述正确的是 A.M的分子式为C9H10O4 B. M与浓溴水既能发生取代反应,又能发生加成反应 C.—定条件下,1 mol M最多能与3molH2发生反应 D.M能分别与Na、NaOH、NaHCO3发生反应 l2、已知X、Y、Z、W、R是原子序数依次增大的短周期主族元素,其中只有一种金属元素,X是周期表中原子半径最小的元素,Y的最高正价与最低负价绝对值相等,W最外层电子数是最内层电子数的3倍,R是同周期元素中原子半径最小的元素。下列说法不正确的是 A.原子半径Z>W>R B.对应的氢化物的热稳定性:R>W>Y C.单质Z可与R的最高价含氧酸发生置换反应 D.W与R所形成的简单离子均能影响水的电离平衡 13、某温度下,向一定体积0.1 mol·L-1一元弱酸HA溶液中逐滴加入等浓度的NaOH溶液, 溶液中pH与pOH[pOH=-1gc(OH-)]的变化关系如图所示。下列说法错误的是 A.此温度下,水的离子积常数为1.0×10-2x B.M、N两点所示的溶液中,水的电离程度相同 C.Q点消耗的NaOH溶液的体积等于HA溶液的体积

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本试卷分第I卷(选择题)和第II卷(非选择题)两部分。考试时间90分钟,总分100分。可能用到的数据:H:1 C:12 O:16 S:32 Cl:35.5 Fe:56 Na:23 Cu:64 第I卷(选择题共42分) 选择题(每小题只有一个选项符合题意,每小题2分,共42分) 1.化学在生产和日常生活中有着重要的应用。下列说法正确是() A.高纯度的硅单质广泛用于制作光导纤维 B.向煤中加入适量石灰石,在煤燃烧时SO2最终生成CaSO4,可减少对大气的污染 C.将盛满二氧化氮气体的试管倒立在水中,可观察到溶液充满试管 D.为测定熔融氢氧化钠的导电性,可将氢氧化钠固体放在石英坩埚中加热熔化 2.N A为阿伏加德罗常数的数值,下列说法中正确的是() A.在密闭容器中加入l.5mol H2和0.5molN2,充分反应后得到NH3分子数为N A B.一定条件下,2.3g的Na完全与O2反应生成3.6g产物时失去的电子数为0.1N A C.1.0L的0.1 mol·L-1Na2S溶液中含有的S2-离子数为0.1N A D.标准状况下,22.4L的CCl4中含有的CCl4分子数为N A 3.下列叙述不正确 ...的是()

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3、下列关于酶的叙述,错误的是() A.溶酶体本身不能合成和分泌多种酸性水解酶 B.激素都是通过影响细胞内酶活性来调节细胞代谢 C.同一个体内的各类活细胞所含酶的种类有差异,数量不同 D.酶既可以作为催化剂,也可以作为另一个化学反应的底物 4、在两个相同密闭、透明玻璃室内各放置一盆相似的甲、乙两种植物幼苗,在充足的水分、光照和适宜的温度等条件下,用红外线测量仪定时测量玻璃内的CO2含量,结果如下表(假设实验期间光照、水分和温度等条件恒定不变)。下列有关分析,错误的是()记录时间(min)0 5 10 15 20 25 30 35 40 45 甲植物(mg/L)150 110 80 60 50 45 45 45 45 45 乙植物(mg/L)150 115 85 60 40 25 15 15 15 15 A.在0~25min期间,甲和乙两种植物光合作用强度都逐渐减少 B.在30min后,甲和乙植物将不再固定CO2 C.在0~25min期间,影响光合作用强度的主要因素是CO2含量 D.上表数据说明,在低CO2浓度时乙植物比甲植物固定CO2的能力强

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