北京市海淀区2018届高三第二学期期中练习(一模)英语试卷【附答案】

北京市海淀区2018届高三第二学期期中练习(一模)英语试卷【附答案】
北京市海淀区2018届高三第二学期期中练习(一模)英语试卷【附答案】

海淀区高三年级第二学期期中练习

英语2018.4

本试卷共12页,共120分。考试时长100分钟。考生务必将答案答在答题纸上,在试卷上作答无效。考试结束后,将答题纸交回.

第一部分:知识运用(共两节,45分)

第一节单项填空(共15小题;每小题1分,共15分)

从每题所给的A、B、C、D四个选项中,选出可以填人空白处的最佳选项,并在答题纸上将

该项涂黑。

1. The course is designed to help students learn to show respect for .

A. others

B. both

C. those

D. either

2. He will never make progress in math he really wants to learn it.

A. if

B. as long as

C. unless

D. in case

3. A report on food safety in Beijing on January 15th, 2018 and it has received positive reviews.

A. published

B. was published

C. has published

D. has been published

4. good air quality, the government is replacing coal fuel with natural gas.

A. Guaranteed

B. Guaranteeing

C. To guarantee

D. Guarantee

5. leaves the classroom last should turn off the lights.

A. Which

B. Who

C. Whichever D .Whoever

6. This problem again? We it many times!

A. are discussing

B. discussed

C. had discussed

D. have discussed

7. On Sunday morning, Nancy plans for the trip when her mother walked in.

A. is reviewing B_ will review C. was reviewing D . reviewed

8. ——I went to the concert last night. It was fantastic!

—You were so lucky! How I wish I the ticket too.

A. had got

B. would get

C. got

D. get

9. Once by the soccer team, yourself need to train three times a week.

A. accepting

B. accepted

C. to accept

D. accept

10. — Have you heard that Space X sent a Tesla car into space?

—Yes. they have achieved is amazing.

A. Where

B. How

C. That

D. What

11. It is through decades of hard work China has progressed to a new stage.

A. that

B. where

C. which

D. what

12. The mayor made a statement his concern for the misuse of shared bicycles.

A. voiced

B. voice

C. voicing

D. having voiced

13. Michael was happy that he had a roof _ his head when it rained.

A. on

B. over

C. up

D. around

14. You something great, otherwise you wouldn’t have got the promotion.

A. should do

B. must do

C. should have done

D. must have done

15.Across the street is the research center Stephen Hawking made his ground-breaking discoveries in physics.

A. where

B. that

C. when

D. which

第二节完形填空(共20小题;每小题1.5分,共30分)

阅读下面短文,掌握其大意,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。

My parents divorced when I was 11 years old. One year later, my father 16 providing any type

of financial support for us. Times were definitely 17 then. I remember the threatening calls from bill collectors, and the sound of my mother crying late at night. 18 the memory that surfaces much more strongly than all the others is one in which I learned a dear lesson about 19 .

To 20 our family my mother worked day and night. Driving home late one night, she stopped at a red light. A 21 car racing up crashed into the back of my mother's car. Amazingly, my mother 22 ,but her car didn’t. The driver of the other car was a young man with no 23 ,so he couldn’t afford to repair her car. The next day, I saw our neighbors, the Claytons handing my mother an envelope with $500 inside. I remember my 24 ,tough mother insisting that she couldn’t take their money. There was no way she could 25 pay them back.

Mr. Clayton said with a smile. “Don’t worry about paying us back. When times are better, just help someone else who is in 26 . That will be 27 enough. ”

My mother took his words to heart. A year later, on her way back home from work, she met a young woman holding a crying baby. She invited them into our kitchen and 28 some food for them.

As the night wore on, the young woman's story 29 . She had run away from an unfortunate marriage, taking only her kid and a handful of 30 .

My mother made them a makeshift bed on our living room couch. Later, I saw her open her purse and hand the young woman some money. I knew that was almost all the money she had, yet I saw such a look of 31 upon her face as she handed it freely to the girl.

Through the years, times continued to be tough for our family. In spite of this, my mother still 32 out to help others however she could, whether it was 33 money, time, or another form of service.

It has been several decades since our neighbors gave their 34 The sweet lesson I have learned

from the dear neighbor and my mother was that when times are tough, acts of kindness and generosity can make such a 35 .

16. A. stopped B. r emembered c. avoided D. suggested

17. A. puzzling B. m emorable c. challenging D. valuable

18. A. And B. S o c. But D. Or

19. A. accepting B. r especting c. sharing D. caring

20. A. support B. e ducate c. uniteD. serve

21. A. shiny B. s peeding c. passing D. costly

22. A. suffered B. s creamed c. escaped D. survived

23. A. insurance B. licence c. experience D. family

24. A. desperate B. inspiring c. proud D. loving

25. A. secretly B. p ossibly c. naturallyD. seriously

26. A. anxiety B. n eed c. turn D. depression

27. A. politenessB. success c. payment D. effort

28. A. cooled B. bought c. stored D. prepared

29. A. unfolded B. continued c. ended D. paused

30. A. possessions B. jewels c. tools D. purses

31. A. hesitation B. confusion c. determination D. caution

32. A. rushed B. worked c. gave D. reached

33. A. about B. with c. at D. for

34. A. lesson B. opinion c. chance D. 碑

35. A. sense B. difference c. request D. decision

高三年级(英语)第3页(共l2页)

第二部分:阅读理解(共两节,40分)

第一节(共15小题;每小题2分,共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

How do I book a place on Airbnb?

When you book a place on Airbnb, you are making arrangements to stay in

Someone’s home. Each host has their own style of hospitality, starting with how

They like to get to know their guests. Some hosts want to approve reservations,

while others are comfortable letting you book their place instantly without waiting for approval.

1. Complete Your Personal Details

In either case, it’s important to know that Airbnb is a c ommunity that relies on trust. Complete your personal details before you request a reservation with a host, so they can know a little bit about you when they confirm. Your personal details should include photos and verifications (证明),especially because some hosts require guests to have a profile photo and verified ID in order to book.

2. Find the Right Place

With over 800,000 unique listings around the world,you’ll want to make sure the place you choose has everything you need for a comfortable and memorable trip. When searching for a place, make sure to include your dates and number of guests to get the most accurate pricing. Read reviews, descriptions, house rules, and facilities for each place to see if it’s the right fit for you r trip. You can always contact the host if you have any questions about their home.

3. Book It!

You’ve found the perfect place,and now it’s time to make it official. This is where the host’s preferred way of booking will determine how you5ll confirm your reservation.

? Instant Book

For hosts who don’t want to approve each reservation,you’ll see a button on their listing that says Instant Book. Like the name suggests,you can confirm a reservation at these places right away.

? Request to Book

Many hosts prefer to approve reservations before they’re final. In this case,you’ll see a button on their listing that says Request to Book. T o submit a reservation request, you’ll need to enter your

?payment details.

Hosts have 24 hours to accept your request, and your reservation is automatically confirmed once they do.

? Pre-approvals and Special Offers

If you decide to contact the host to ask questions before attempting to book, the host may respond to your message by inviting you to make a reservation with either a Pre-approval or a Special Offer. A Pre-approval is an invitation to finish booking for the dates and number of guests you noted in your message. A Special Offer gives the host the opportunity to provide special pricing, dates, and other reservation details before you book.

36. When filling in your personal information, you need to .

A. request a reservation with a host

B. ask for approval from the host

C .provide your proof of identity D. trust the community where you live

37. To know the exact price, you should .

A. check the listings online in advance

B . contact the host to ask questions first

C. confirm your dates and number of guests

D. read previous reviews written by other users

38. If you click the Request to Book button, you can .

A. get some special discounts

B. know the result within a day

C. get the approval immediately

D. receive a Pre-approval message

39. Where is the passage most probably from?

A. A news report.

B. A shopping guide.

C. A travel magazine.

D. A research paper.

B

When Chris moved in across the hall from Norma

Cook four years ago in a Los Angeles-area apartment

complex, the 31-year-old actor waved to his 85-year-old

neighbor for a few weeks before finally knocking on her door and introducing himself.

“the day I enter her apartment and spoke with her face to face was the day my life was changed forever,”Chris says.

He learned that Cook had no family living in California and that she suffered from a long list of illnesses, including leukemia (白血病).The pair quickly became close friends, as Chris took he r to doctor’s appointments, cooked with her and they ran errands together. He shared their adventures on social media.

But recently, Cook’s health declined and she was in and out of the hospital s everal times. She once spent weeks in the hospital fighting pneumonia (肺炎)and breathing issues. Eventually Cook was told by one of her doctors that she could no longer live at home unless she had 24-hour care. Because Cook had no money saved to pay her health care costs, Chris started a GoFundMe account to help cover her bills.

But caretakers are expensive and Cook quickly went through the $34,445 they raised. Knowing her days at home were limited, Chris invited Cook to move in with him to save money.

“She loves it! I do most of my work at home so I am here most of the time to care for her. It only made sense to both of us, ”Chris wrote. “She is my adopted grandmother after all and I am her grandson

she never had.”

“Cook still has weekly hospice health care visits and regular visits from caregivers, so any funds raised cover those expenses,”he wrote.

Though doctors say Cook’s days are very limited, the pair are enjoying spending time together drinking champagne and snuggling with her cat, Hermes, who also made the move.

“She does not want to change, ”Chris told Today. “My apartment was the only place she would have moved. She has strong opinions about where she wants to carry out the rest of her days, and she wants to stay here. ”

Chris says he feels like the relationship was fate. “Moving her in....it feels as though it was meant to be all along, ”he said. “It’s really fulfilling (有成就感的)to be there for her.”

40. Chris invited Cook to live with him because she .

A. had no other family members

B. was unable to afford 24-hour care

C. shared similar adventures with him

D. was told not to live at home by the doctor

41. From the passage, we can learn that Chris ?

A. worked as an actor for GoFundMe

B. was legally adopted as Cook5s grandson

C. collected money for Cook’s private care

D. paid Cook’s expensive health care cos ts

42. Which of the following words can best describe Chris?

A. Kind and sympathetic,

B. Optimistic and friendly.

C. Patient and enthusiastic.

D. Warm-hearted and outgoing.

C

The Lifecycle of a T-shirt

We all probably have a lot of T-shirts, but do you ever stop and think about the influence of a T-shirt on the planet? You’d probably be surprised to learn what's involved in the lifecycle of just one T-shirt.

There are 5 major stages: material, production, shipping, use and disposal The material stage involves farming, irrigating, fertilizing, harvesting and ginning. While cotton is a natural fiber (纤维)and not as harmful to the environment as manmade fibers, it still takes a toll in the material and production stages. Commercial cotton farming uses a large amount of water, and the use of pesticides (杀虫剂)is widespread across the globe, especially in cotton farming. Studies have shown that farmers spend around $4.1 billion on pesticides annually, of which 25% was spent on cotton crops in the US.

Once the cotton is grown and harvested, so begins the production stage: spinning, knitting, bleaching, dyeing, cutting, sewing, etc.——these processes also use a great deal of water and energy. Commercial dyes and bleaches are harmful pollutants and can eventually pollute groundwater.

After the T-shirt is produced, it enters the transportation stage. This often involves overseas shipping. Take a look in your closet. Chances are that most of your cotton garments (衣服)are made in China or India. Garments can be shipped via plane, ship or truck…,all of which spill CO2 into the atmosphere.

Calculations show that C02 emissions from light trucks alone amount to 1.15 pounds per mile.

Once the T-shirt reaches the retail market, it is purchased. This stage may seem like the least environmentally damaging part. But consider the number of times you5ve washed and dried your favorite T-shirt. Washing machines are certainly becoming more efficient. However, the average American household does 400 loads of laundry per year, using about 40 gallons of water per load. Such excessive water use is combined with the large amount of energy used by dryers.

The final stage of life is disposal. This releases harmful emissions, or involves a landfill where cotton takes years to break down. Current US records show that an estimated 15% of clothes and shoes are recycled, which means that consumers send a shocking 85% of these materials to landfills.

We all need new clothes every once in a while, but let’s all try to keep in mind what goes into the production of clothing... It has a real impact on the planet.

There are a lot of things you can do to help reduce your impact. Reuse and recycle clothes. If they5re too worn out to wear, cut them up and use them as cleaning rags. Donate them to charity or another organization that recycles textiles. When possible, make an effort to buy organic cotton. Turn down the thermostat on your washer, and line dry your clothes when the weather will allow it.

43. The underlined phrase “takes a toll” probably means “”

A. wastes water

B. takes a lot of time

C. uses energy

D. has a bad effect

44. We can learn from the passage that in the US, .

A. pesticides in cotton farming cost over 4 billion dollars every year

B. C02 emissions of land transport amount to 1.15 pounds per mile

C. about 15% of the clothes and shoes are made of materials that are recycled

D. about 16, 000 gallons of water is used annually by an average family on laundry

45. What can be inferred from this passage?

A. The production process may affect water safety.

B .The clothing cost is relatively low in China and India.

C. Cotton clothes are buried because they are hard to break down.

D. The use stage is the least environmentally harmful of the five stages.

46. What is the purpose of this article?

A. To encourage people to donate clothes to charity.

B. To promote eco-friendly actions related to clothes.

C. To persuade people to purchase more organic cotton.

D. To introduce the five stages in the lifecycle of clothing.

D

Eudaimonia is an Ancient Greek word, particularly stressed by the philosophers Plato and Aristotle, which deserves far more attention than it has because it corrects the shortfalls (缺失)in one of the most central, but troubling words in our modem language: happiness.

When we nowadays try to clearly express the purpose of our lives,it is the word “happiness”that we commonly turn to. We tell ourselves and others that the most important principle for our jobs, our relationships and the conduct of our day-to-day lives is the pursuit of happiness. It sounds like an innocent enough idea, but too much reliance on the term means that we frequently unfairly tend to quit or, at least, heavily question a great many challenging but worthwhile situations. The Ancient Greeks did not believe that the purpose of life was to be happy; they proposed that it was to achieve Eudaimonia, a word which

has been best translated as “fulfilment”.

What distinguishes happiness from fulfilment is pain. It is very possible to be fulfilled and—at the same time—under pressure, suffering physically or mentally, overburdened and, quite frequently, in an irritable (易怒的)mood. This is a slight psychological difference that is hard for the word “happiness”to capture, for it’s tricky to speak of being happy yet unhappy, or happy yet su ffering. However, such a combination is readily accommodated within the respected and noble-sounding idea of Eudaimonia.

The word encourages us to trust that many of life’s most worthwhile projects will sometimes be in conflict with contentment, and yet will be worth pursuing. Properly exploring our professional talents, managing a household, keeping a relationship going, creating a new business venture or engaging in politics... none of these goals are likely to leave us cheerful and grinning on a daily basis. They will, in fact, involve us in all manner of challenges that will deeply exhaust and weaken us, provoke (激怒)and wound us. And yet we will perhaps, at the end of our lives, still feel that the tasks were worth undertaking. Through them, we’ll have a chieved something deeper and more interesting than happiness.

With the word Eudaimonia in mind, we can stop imagining that we are aiming for a pain-free existence—and then blaming ourselves unfairly for being in a bad mood. We’ll know that we are trying to do something far more important than smile all the time: we're striving to do justice to our full human potential.

47. What do we know about “Eudaimonia” from the passage?

A. It was first created by two Greek philosophers.

B . It has received a lot of attention from the public.

C. It still has some shortfalls that need to be corrected.

D. It was regarded as the purpose of life in ancient Greece.

48. According to Paragraph 3, happiness .

A. is the opposite of fulfillment

B. is free from physical or mental pain

C. stresses the psychological difference

D. serves as a respected and noble life goal

49. We can leam from the passage that .

A. aiming for happiness may lead to wrong self-blaming

B. goals that wound and weaken us result in happiness

C. challenges leading to contentment are worth undertaking

D. feeling fulfilled means we should avoid tough situations

50. The passage encourages the readers to .

A. find fulfillment with all efforts

B. seek for a pain-free existence

C. keep optimistic whatever happens

D. balance happiness and suffering

第二节(共5小题;毎小题2分,共10分)

根据短文内容,从短文后的七个选项中选出能填人空白处的最佳选项。选项中有两项为多余

选项。

Radar is an electronic device that detects planes, ships, coastlines, landmarks, and even storm clouds. The name radar comes from the first letters of the words radio direction and ranging. As the human eye uses light waves to see, radar “sees” with radio waves. Without radar, planes could not land safely in bad

weather and ships could not move safely in thick fog. 51

In the 1800s it was discovered that radio waves could be reflected from objects. But scientists did not make great advances in radar research until the 1930s, when the world was threatened by war. 52 It has been used widely in almost every conflict since then.

Echoes make it possible for radar to work. When a beam of radio waves is sent out, it strikes on an object and returns an echo. This echo is picked up by radar and recorded on a screen similar to television screen. On the screen an observer sees a flash, or a blip, that shows the direction and distance of the object.

53

Airport control towers use radar to guide planes in for safe landings. Almost all large ships depend on radar to prevent collisions with icebergs or other ships. 54 Weather forecasters “see” the size, direct ion, and speed of storms on radar screens. Astronomers can even use radar to measure accurately the distance to the moon. Thus, the device has generated major advancements.

55 Huge radar antennas have been installed all over the United States. They guard us against possible enemy attacks. We have ballistic—missiles (战略导弹)warning systems that can alert us to attacks when missiles are more than 1,000 miles away. Other radar systems warn us against enemy aircraft and even spying space satellites.

A. Police track speeders in radar-equipped cars.

B. These measurements are now highly accurate.

C. The device can be used in a wide range of fields.

D. It is therefore especially valuable to shippers and travelers.

E. During World War II many countries used radar effectively.

F. Today radar is used by commercial airliners and weather forecasters.

G. Strengthening national defense is one of radar’s most important functions.

第三部分:书面表达(共两节,35分)

第一节(15分)

下面是你的美国朋友Jim给你发的一封邮件。请给他回一封邮件。

Feb. 16, 2018 Dear Li Hua,

Happy Chinese New Year!

According to the Chinese zodiac,a baby born this year is a “dog”. So amazing! How many zodiac signs are there in Chinese culture? You know, I was born in the summer of 2000. Could you please tell me what my zodiac sign is? And what does it mean?

Thank you and I’m looking forward to your reply.

Yours,

Jim

(请务必将作文写在答题纸指定区域内)

第二节(20分)

假设你是红星中学高三学生李华。请根据下面四幅图的先后顺序,用英语为校刊写一篇短文,记录今年春节你带奶奶去澳大利亚旅游的经历。

注意:词数不少于60。

提示词:悉尼Sydney

(请务必将作文写在答题纸指定区域内)

海淀区高三年级第二学期期中练习

英语

参考答案及评分标准2018.04

第一部分:知识运用(共两节,45分)

第一节单项填空(共15小题;每小题1分,共15分)

1. A

2. C

3. B

4. C

5. D

6. D

7. C

8. A

9. B 10. D

11. A 12. C 13. B 14. D 15. A

第二节完形填空(共20小题;每小题1.5分,共30分)

16. A 17. C 18. C 19. D 20. A 21. B 22. D 23. A 24. C 25. B

26. B 27. C 28. D 29. A 30. A 31. C 32. D 33. B 34. D 35. B

第三部分:阅读理解(共两节,40分)

第一节(共15小题;每小题2分,共30分)

36. C 37. C 38. B 39. C 40. B 41.C 42. A 43. D 44. D 45. A

46. B 47. D 48. B 49. A 50. A

第二节(共5小题;每小题2分,共10分)

51. D 52. E 53. B 54. A 55. G

第四部分:书面表达(共两节,35分)

第一节(15分)

一、评分原则:

1.本题总分15分,按4个档次给分。

2.评分时,先根据文章的内容和语言质量初步确定其档次,然后以档次的要求来衡量,确定或降低档次,最后给分。

3.评分时应考虑:内容是否完整,条理是否清楚,交际是否得体,语言是否准确。

4.拼写、标点符号或书写影响内容表达时,应视其影响程度予以考虑。英、美拼写及词汇用法均可以接受。

分值评分标准说明

第一档

(13分—15分) 完全完成了试题规定的任务。

内容完整,条理清楚;

交际得体,表达时充分考虑到了交际的需求;体现出较强的语言运用能力。

完全达到了预期的写作目的。

第二档

(9分—12分)基本完成了试题规定的任务。

内容、条理和交际等方面基本符合要求;

所用语法和词汇满足了任务的要求;

语法和用词方面有一些错误,但不影响理解。基本达到了预期的写作目的。

第三档

(4分—8分)未恰当完成试题规定的任务。

内容不完整;

所用词汇有限,语法或用词方面的错误影响了对所写内容的理解。未能清楚地传达信息。

第四档

(1分—3分)未完成试题规定的任务。

写了少量相关信息;

语法或用词方面错误较多,严重影响了对所写内容的理解。

0 未能传达任何信息;写的内容与要求无关。

One Possible Version

Dear Jim,

Thank you for your New Year greetings, and I’m very happy about your interest in C hinese zodiac.

Actually, there are altogether twelve zodiac signs in Chinese culture. As you were born in 2000, the year of dragon, your zodiac sign is “dragon”.

Dragon in Chinese culture mainly conveys two meanings. First, it is the symbol of power and nobleness. Second, Chinese dragon delivers the meaning of being outstanding and extraordinary. Parents often put Chinese character “Long”, which means dragon, in kids’ name to show their higher expectations.

That’s all about my brief introduction. Hoping it’ll help you have a better understanding of China. If you have any further question, please let me know.

Yours,

Li Hua

第二节(20分)

一、评分原则:

1.本题总分为20分,按5个档次给分。

2.评分时,先根据文章的内容和语言质量初步确定其档次,然后以该档次的要求来衡量,确定或调整档次,最后给分。

3.评分时应考虑:内容要点的完整性、上下文的连贯、词汇和句式的多样性及语言的准确性。

4.拼写、标点符号或书写影响内容表达时,应视其影响程度予以考虑。英、美拼写及词汇用法均可接受。

5.词数少于60,从总分中减去1分。

二、内容要点:

1. 入住酒店

2. 游览歌剧院或拍照留念

3. 参观大学或观看书法展

4. 分享照片

三、各档次的给分范围和要求:

第一档完全完成了试题规定的任务。

·覆盖了所有内容要点;

·运用了多样的句式和丰富的词汇;

·语法或用词方面有个别错误,但为尽可能表达丰富的内容所致;体现18分—20分

了较强的语言运用能力;

·有效地使用了语句间的连接成分,所写内容连贯、结构紧凑。

完全达到了预期的写作目的。

第二档完全完成了试题规定的任务。

·覆盖了所有内容要点;

·运用的句式和词汇能满足任务要求;

·语法和用词基本准确,少许错误主要为尽可能表达丰富的内容所致;

15分—17分

·使用了简单的语句间连接成分,所写内容连贯。

达到了预期的写作目的。

第三档基本完成了试题规定的任务。

·覆盖了内容要点;

·运用的句式和词汇基本满足任务要求;

12分—14分

·语法和用词方面有一些错误,但不影响理解。

基本达到了预期的写作目的。

第四档未恰当完成试题规定的任务。

·漏掉或未描述清楚主要内容;

·所用句式和词汇有限;

6分—11分

·语法或用词方面的错误影响了对所写内容的理解。

未能清楚地传达信息。

第五档未完成试题规定的任务。

·明显遗漏主要内容;

·句式单调、词汇贫乏;

1分—5分

·语法或用词方面错误较多,严重影响了对所写内容的理解。

0分未能传达任何信息;所写内容与要求无关。

One Possible Version

This Spring Festival, I went to Australia for a trip with my beloved grandma. We appreciated the

beauty of Sydney and witnessed Chinese elements everywhere.

The instant we stepped into the hotel lobby to check in, we were surprised to find it decorated with red Chinese lanterns. And we were greeted with “Happy Chinese New Year”.

Our first destination was the world-famous Sydney Opera House, in front of which stood a giant lantern of zodiac dog, reminding visitors of the Chinese New Year. Delighted and excited, Grandma had a photo taken with it. Afterwards, we headed for the University of Sydney. When we were touring the amazing campus, a Chinese calligraphy exhi bition caught our sight. How amazing it was to see “Fu” so far away from home!

Surprised at the festive atmosphere, I shared some pictures on WeChat with the words “Chinese Style Everywhere”. Immediately, I got 60 Likes! We were proud of the increasing inf luence of China.

北京市朝阳区2018年初中英语一模试题(Word版含答案)2018.4

北京市朝阳区2018年初中英语一模试题(Word版含答案)2018.4

北京市朝阳区2018 年初中毕业考试 知识运用(共40 分) 一、单项填空(共24 分,每小题2 分) 从下列各题所给的A、B、C、D 四个选项 中,选择可以填入空白处的最佳选项。 1. My father is a teacher. works in No. 5 Middle School. A. I B. He C. She D. You 2. We usually have the first class 8:00 in the morning. A. at B. in C. on D. for 3. —Excuse me, is the bank, please? — It's next to the supermarket. A. which B. when C. where D. what

didn’t rain D. isn’t raining 11.The trees here two years ago . A. plant B. planted C. are planted D. were planted 12. —Do you know ? —Tomorrow morning . A. when will they come to visit us B. when did they come to visit us C. when they will come to visit us D. when they came to visit us 二、完形填空(共16 分,每小题2 分)

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7.某校春季运动会上,小刚和其他16名同学参加了百米预赛,成绩各不相同,小刚已经知道了自己的成绩,如果只取前8名参加决赛,他想知道自己能否进入决赛,还需要知道所有参加预赛同学成绩的 A . 平均数 B . 众数 C . 中位数 D . 方差 8.如图,将一张三角形纸片ABC 折叠,使点A 落在BC 边上,折痕EF ∥BC ,得到△EFG ;再继续将纸片沿△BEG 的对称轴EM 折叠,依照上述做法,再将△CFG 折叠,最终得到矩形EMNF ,折叠后的△EMG 和△FNG 的面积分别为1和2,则△ABC 的面积为 A . 6 B . 9 C . 12 D . 18 二、填空题(本题共16分,每小题4分) 9.在函数1 2 y x =+中,自变量x 的取值范围是 . 10.分解因式:3m m -= . 11.如图,AB 为⊙O 的弦,半径OC ⊥AB 于点D ,AB =32, ∠B =30°,则△AOC 的周长为 . 12. 在平面直角坐标系xOy 中,动点P 从原点O 出发,每次向上平移1个单位长度或向右 平移2个单位长度,在上一次平移的基础上进行下一次平移.例如第1次平移后可能到达的点是(0,1)、(2,0),第2次平移后可能到达的点是(0,2)、(2,1)、(4,0),第3次平移后可能到达的点是(0,3)、(2,2)、(4,1)、(6,0),依此类推…….我们记第1次平移后可能到达的所有点的横、纵坐标之和为l 1,l 1=3;第2次平移后可能到达的所有点的横、纵坐标之和为l 2,l 2=9;第3次平移后可能到达的所有点的横、纵坐标之和为l 3,l 3=18;按照这样的规律,l 4= ; l n = (用含n 的式子表示,n 是正整数).

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2018北京市朝阳区高三(一模)生物本部分共20小题,每小题6分,共120分。在每小题列出的四个选项中,选出最符合题目要求的一项。 1.以下实验选材不能..达到实验目的的是 A.利用鸡红细胞进行DNA的粗提取 B.利用蛙红细胞观察细胞有丝分裂 C.利用猪红细胞制备纯净的细胞膜 D.利用羊红细胞进行细胞吸水失水实验 2.单细胞浮游植物杜氏盐藻是最耐盐的光合生物之一。研究发现,K+浓度对杜氏盐藻的生长繁殖具有重要作用。下列说法合理的是 A.每天需定时对杜氏盐藻逐个计数以绘制生长曲线 B.4mmol/L的K+对杜氏盐藻生长繁殖具有抑制作用 C.杜氏盐藻的高耐盐性是其与环境共同进化的结果 D.若将K+替换成Na+,则得到的实验结果也一定相同 3.荧光定量PCR技术可定量检测样本中某种DNA含量。其原理是:在PCR反应体系中每加入一对引物的同 时加入一个与某条模板链互补的荧光探针,当Taq酶催化子链延伸至探针处,会水解探针,使荧光监测系统 接收到荧光信号,即每扩增一次,就有一个荧光分子生成。相关叙述错误..的是 A.引物与探针均具特异性,与模板结合时遵循碱基互补配对原则 B.Taq酶可以催化子链沿着3’→5’方向延伸,需dNTP作为原料 C.反应最终的荧光强度与起始状态模板DNA含量呈正相关 D.若用cDNA作模板,上述技术也可检测某基因的转录水平 4.下丘脑的CRH神经元兴奋后可分泌促肾上腺皮质激素释放激素CRH(一种含41个氨基酸的神经肽),促进垂体分泌促肾上腺皮质激素,进而促进肾上腺皮质分泌肾上腺皮质激素。研究发现下丘脑-垂体-肾上腺轴的功能紊乱,可使CRH神经元过度兴奋,导致CRH分泌增多,为抑郁症的成因之一。下列叙述错误..的是 A.正常状态下,兴奋在神经元之间以电信号的形式进行单向传递 B.CRH的合成、加工需要多种细胞器协调配合,分泌方式为胞吐 C.健康人血液中肾上腺皮质激素增多时会增强对下丘脑的抑制

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