2020-2021学年西安市铁一中学高三英语下学期期中考试试卷及答案

2020-2021学年西安市铁一中学高三英语下学期期中考试试卷及答案第一部分阅读（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A、B、C、D四个选项中选出最佳选项
A
You might not expect it, but cows are a large source of the greenhouse gases that are driving climate change. Cows produce lots of methane by breaking down the grass, Now scientists have shown that the pollution from cows canbe reduced by adding a little seaweed to their food.
Scientists first discovered that seaweed could help control methane from cows several years ago. But this work was done in a laboratory, there were many questions about whether the idea could work in real life.
In the lab studies, the cows were given quite a bit of seaweed, and they would cause losing weight. That wasn't helpful, since cows are often sold by weight. It also wasn't clear if the seaweed would stop working if it was used for a longer period of time.
Now, scientists from the University of California, Davis have answered several of these questions.
The researchers studied 21 cows on a farm for about five months. They taught the cows to get their food from inside a special hood, which allowed the scientists to measure the methane that the cows were giving off. This time, they used a much smaller amount of seaweed, which they mixed with the cows' food.
The results were surprisingly good. In some cases, the cows produced 82% less methane. The improvement depended on the kind of food the cows were given, but even the worst-polluting cows produced 33% less methane.
Over the five months, the scientists didn't see any signs that the cows' stomachs were getting used to the seaweed and starting to produce more methane again.
Another surprise came when they looked at the weight of the cows. The cows that were fed seaweed gained just as much weight as the other cows, but they didn't need as much food.
But there are still some big problems with the idea of feeding cows seaweed. For one thing, there's notadequateseaweed to feed all of the cows in the world. So farmers would have to figure out a way to grow lots of seaweed.
A bigger problem is that for most of their lives, cows live in fields, where they eat the grass. That means there's no chance to feed them seaweed every day. These problems need to be taken seriously if the world is going to avoid the worst effects of the climate crisis.
Still, it's true that something as simple as feeding cows seaweed can help reduce some of the pollution causing the climate crisis.
1. Why did the scientists do the experiment on the farm?
A. To control the amount of seaweed.
B. To record the weight cows gained.
C. To confirm the effect of seaweed in real life.
D. To measure the amount of seaweed cows ale.
2. The underlined word “adequate” means ________ .
A. common
B. special
C. lacking
D. enough
3. The passage is written to ________ .
A. appeal to people not to raise the cows
B. encourage people to plant the seaweed
C. remind people of controlling cows' weight
D. call on people to take actions to reduce the pollution
B
For 30 years we have been told how temperatures have been rising rapidly to unheard of levels. This is causing polar ice to melt, sea-levels to rise and has brought about adangerous increase in extreme weather events. These intense climatic changes would likely present challenges to our society and environment.
The causes of climate change are mainly anthropogenic (人为的) in nature. Since the industrial revolution, human activities have increased the amount of greenhouse gases in the atmosphere. The increased amount of gases which absorb heat has led to more heat being kept in the atmosphere, causing global warming.
The certainty of global warming can be seen through some of the natural phenomena like the effect on crops and extreme weather conditions around the world. The most recent assessment report says that the earth’s average temperature has risen by 0. 74 degrees in the period from 1906 to 2005, and that the average temperature will continue to rise. There have also been more violent downpours, sea levels have risen and the ice at the world’s poles and on its mountains is melting. The rising sea level is flooding the low-lying countries inAsiaand small islands in the Pacific. This may lead to the displacement of millions of people, loss of millions of land and consequently billions of dollars.
Troubled by the serious situation, world leaders came together for the 2015 United Nations (UN) Climate Change Conference inParis. The climate talks led to 196 countries reaching a landmark agreement that will, for the first time, commit nearly every country to lowering planet-warming greenhouse gas emissions to address global climate change. That was certainly an encouraging step forward for our earth and mankind!
As the world leaders continue to commit themselves to monitor our sick planet, we need to continue to take
small steps to heal the world. We are left with not much of a choice. If only we could just pack our bags and migrate to Mars!
4. What does paragraph 2 mainly talk about?
A. The information of industrial revolution.
B. The greenhouse gases in the atmosphere.
C. The reasons of climate change.
D. The result of extreme weather events.
5. What can we infer from the last paragraph?
A. We have made great achievements.
B. Some measures are still required to take.
C. Mars is suitable for people’s living.
D. Some countries will receive urgent aid.
6. Which can be a suitable title for the text?
A. Long Live Planet Earth!
B.Environment Changes Rapidly!
C. What Serious Global Warming!
D. How Important the UN Agreement Is!
7. Which of the following shows the structure of the whole text?
A. B.
C. D.
C
I have a memory of being about five years old, picking up a beautiful grilled(烧烤的）cheese sandwich made for me by my hard —working mother and turning it over to see that theother side was burned. Suddenly what I thought was the perfect sandwich was not so perfect. Mom had tried to hide that fact from me. There was no question; I ate it anyway without complaining. However, that moment has stuck in my mind for many years. Now, at the age of 43 as a mother of two children and as a biology professor where I am routinely the "academic mother" of hundreds of students every year,I find that I believe inThe Grilled Cheese Principle.Here is what I mean
Making a grilled cheese sandwich is easy right? But when I think of how many burned grilled cheese sandwiches I have eaten, or I have made myself, I realize that most of the grilled cheese sandwiches I have known have had at least one burned side. The thing is that although it is a ly easy thing to make, I can also easily lose focus, and before long the sandwich is burned. For my mother, the first side was usually perfect and the second side got burned due to her being distracted. For me,I have tended to burn the first side,but then I more carefully monitor the second side.Either way,the grilled cheese sandwich suffers because it has not been given the attention it deserves
So, I have learned that even the simplest task deserves my full attention. When I am multi-tasking, I am doing none of the tasks well. And when I allow myself to be distracted, I am not in the present moment — not paying attention to the small details of living or enjoying the process
So now, I believe the best way to make a perfect grilled cheese sandwich is to make only one at a time and give it my full attention.
8. How did the writer react to the sandwich with burned side?
A. She ate it with some complaints
B. She showed no interest.
C. She thought it was still perfect
D. She was deeply impressed with it
9. What doesThe Grilled Cheese Principlemean?
A. Even simple things deserve full attention
B. Losing focus makes the sandwich burned
C. Self-made sandwiches are always burned
D. we should make only one sandwich at a time
10. Which of the following can we infer from the passage?
A. Everything cannot be done well without full attention
B. Moms always like to lie to kids when they have done something wrong
C. We can lose focus more easily when we do easy things.
D. Multi-tasking can be an obstacle to the achievement of tasks.
11. What does the writer mainly want to tell us?
A. Nothing is perfect
B. Learn to appreciate the burned sandwiches
C. Devote yourself to one thing at a time.
D. Never do multi-tasks
D
Coke was introduced by the Coca Cola company in 1886, making it a rather true andtested favorite of generations of people in over 200 countries. This list should give you some ideas on how to get more from your coke than usual.
. Coca Cola is an excellent rust buster (除锈剂). If you have a bunch of small rusty objects, put them in coke overnight and give them a goodscrubin the morning. Coke helps to break down the rust, making cleaning much easier. Be sure to throw out the used coke when you are done with it or you might be taking a trip to the doctor.
. Like the previous item, the citric acid (柠檬酸) in coke makes for an excellent window cleaner. This is especially useful for car windows. Pour a can of coke over the window and rub the window, then wipe it off with a wet cloth to remove any sugary matter from the sugar in the drink. As coke is fullof sugar, you should clean the sticky matter off the window glasses, or it will be not a cleaner but a dirt.
. For those of you who live in areas where skunk (臭鼬) smells can be an issue from time to time, one can of coke added to water with detergent (清洁剂) really helps to break the smell down. If you have been sprayed, stand in the shower and cover yourself from head to toe with coke — wait for a few minutes, then wash yourself with a shower. Coke is an excellent hair treatment so you get two tips for the price of one with this item!
. Pots can sometimes get black on the bottom. The black is almost impossible to remove; this is caused by over-cooking. To remove the black and renew your pot, pour in a can of coke (or as much as you need to cover the blackened area by an inch) and put it on the stove on a low heat. After an hour or so, wash the pot as normal.
12. What does the underlined word “scrub”in Paragraph 2 probably mean?
A. Start.
B. Cleaning.
C. Shake.
D. Example.
13. What is important while using coke to clean car windows?
A. Use a dry cloth.
B. Rub the window lightly.
C. Don’t pour too much coke.
D. Clean the sugary matter thoroughly.
14. For which purpose does coke have to be mixed with other material?
A. To get rid of the black on the pot.
B. To breakdown the rust,
C. To remove smells.
D. To clean windows.
15. What type of writing is this text?
A. An advertisement.
B. A review.
C. A news report.
D. A practical guide.
第二节（共5小题；每小题2分，满分10分）
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。

选项中有两项为多余选项You may have grown up living with sisters and brothers, or this may be your first time sharing your living space with someone else.___16___However, it can also be a great part of your college experience. Follow these tips to make sure you and your roommate keep things pleasant and supportive throughout the year.
Be clear from the beginning.
Maybe you hate it when someone interrupts you when you are sleeping every morning. Maybe you need ten minutes to yourself before talking to anyone after you wake up.___17___It's not fair to expect him or her to accept them right away, and communicating what you need is one of the best ways to get rid of problems before they become problems.
___18___
This may seem simple, but it's probably one of the biggest reasons why roommates experience conflicts. Don't you think he’ll mind if you borrow his shoes for a quick soccer game? For all you know, you just stepped over an uncrossable line. Don't borrow, use, or take anything without getting permission first.
Be open to change.
You should expect to learn and grow and change during your time at school.___19___As the term progresses, realize things will change for both of you. Be comfortable dealing with things that unexpectedly come up, setting new rules, and being flexible to your changing environment.
Follow the Golden Rule.
___20___No matter what your relationship is at the end of the year, you can take comfort knowing you acted like an adult and treated your roommate with respect.
A. Respect your roommate's things.
B. You should correct your bad habits first.
C. Let your roommate know about your preferences.
D. Having a roommate surely has its challenges.
E. Treat your roommate like you'd like to be treated.
F. Living with a roommate is really a wonderful thing.
G. And the same should happen to your roommate, if all goes well.
第二部分语言运用（共两节，满分45分）
第一节（共20小题；每小题1.5分，满分30分）
阅读下面短文，从每题所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项
I first heard about several cases of coronavirus in January, 2020. But I did not___21___the outbreak to have such a sudden and powerful effect on the rest of the world. In March, towards the end of winter quarter, it was___22___that we would take all the finals online. It was unexpected, and all university teachers and students were___23___.
Due to the coronavirus pandemic, our University of California at San Diego（UCSD）student-run free dental clinics are closed___24___, and most research laboratories are only open for____25____personnel. Thus, I have had a lot more spare time than before,___26___most of the events have been switched to be held online. To___27___time, I learned to follow___28___to make different dishes. The period of quarantine（隔离）has become a time when I can learn some new life___29___.
Besides cooking I have been___30___a new hobby—playing puzzles. At first, solving a puzzle was justa way for me to___31___endurance（忍耐性）and patience. Then I realized that I learned much more than that. When I___32___1,000 pieces of a puzzle on the table, I___33___not buying a simpler one. I suddenly realized how impatient I was that I couldn’t even focus on such a simpler task.
Electronic devices have been training me to constantly stare at a blinking（闪烁）screen and___34___what I was doing. I decided to solve a puzzle while___35___devices for several hours, and enjoy one simple task like a little child.
When I started to look for different pieces to see if they could fit in a larger___36___, I started to look for shortcuts. I tried to collect puzzles with similar patterns or color1 s and___37___their edges.
During this time, I slowly forgot all the madness and___38___of quarantine life. Every time I got one piece in the right place, I was___39___awarded by such a small success and motivated to keep on trying. It was surprising and unexpected for me to receive so much___40___from focusing on solving puzzles.
21. A. encourage B. expect C. require D. remind
22. A. announced B. promised C. hoped D. discovered
23. A. unhappy B. unfortunate C. uninterested D. unprepared
24. A. occasionally B. formally C. temporarily D. gradually
25. A. devoted B. eager C. excellent D. limited
26. A. unless B. before C. since D. though
27. A. treasure B. kill C. waste D. save
28. A. schedules B. orders C. targets D. recipes
29. A. secrets B. tracks C. skills D. lessons
30. A. exploring B. spreading C. reviewing D. doubting
31. A. support B. practise C. recommend D. appreciate
32. A. broke up B. handed in C. poured out D. put away
33. A. imagined B. permitted C. advised D. regretted
34. A. forget B. guess C. remember D. emphasize
35. A. putting up with B. staying away from C. watching out for D. taking control of
36. A. basket B. poster C. picture D. board
37. A. touch B. remove C. draw D. compare
38. A. danger B. boredom C. excitement D. amazement
39. A. mentally B. physically C. strangely D. passively
40. A. trouble B. joyfulness C. responsibility D. praise
第二节（共10小题；每小题1.5分，满分15分）
阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式
Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.
Taking a shower is relaxing. You can hum a song, daydream or think about nothing, leaving the real world behind you. But do you know that showering___41.___also benefit your mind?
A research by Scott Barry Kaufman, a psychologist fromYaleUniversityin theUSinterviewed over 3,000 people around the world.___42.___turned out that nearly two-thirds of the interviewees said they experienced new ideas in the shower and were more likely to have them in the shower than at work. So why does a simple shower have such magic power? Science can explain it.
Showering can help to raise our level of dopamine, a hormone___43.___(relate) to our creativity.
“People___44.___(vary) in terms of their level of creativity according to the activity of dopamine”, explained Alice Flaherty, a famous American neuroscientist. “Taking a warm shower can make us feel relaxed and therefore make the dopamine level rise and bring ‘Aha!' moment to us.”
___45.___the chemical changes, showering may give you a break from what you feel you have been stuck with. Especially when you___46.___(think) hard all day about a problem, jumping into the shower can keep you from the outside world so that you can focus on your inner feelings and memories. In this way, according to American psychologist Shelley H. Carson, author of Your Creative Brain, “a showering hour may turn into an ‘incubation (孵化) period’ for your ideas.”
Compared with sitting in front of a computer, taking a shower is something we do___47.___(frequently) in our daily life. When showering, we get a fresh experience with the change of location, temperature and humidity. “New and unexpected experiences can lead to positive changes in thinking,” explained Kaufman. “Getting off the couch and jumping in the shower may create a distance and force you to think from a new perspective.”
Showering allows us to enjoy the creative juices of our minds, but it needn't just be in the bathroom that you get your inspiration. For instance, Gertrude Stein,___48.___female American writer and poet, got new ideas by driving around a farm and stopping at different cows___49.___she found the one that mostinspired her. So try to create your own way to free your mind,____50.____it's a walk near the ocean, a country drive or reading a book at home.
第四部分写作（共两节，满分40分）
第一节短文改错（满分10分）
51.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10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；
只允许修改10处，多者(从第11处起)不计分
As the Internet becomes the more and more popular, some students can’t help play online games or chatting. It was not only a problem of wasting time, but also a seriously problem which does harm to their health. Which teachers should do first is to find out what makes them addicting to computer games. Lack of love from his parents? Poor test scores? Parents can have a heart-to-heart talk with them. Secondly, teacher should help them
build up their confidence but make them interested in studies. Thirdly, find something else for them to do instead playing computer games.
第二节书面表达（满分25分）
52.假定你是李华，上周与交换生Henry一起参加为期三天的社区志愿者活动，但Henry因故缺席了最后一天的活动，请根据以下要点向他介绍相关情况：
1表示慰问；
2.活动内容及流程；
3.个人感受。

注意：1.词数100左右；
2.可以适当增加细节，以使行文连贯。

参考答案
1. C
2. D
3. D
4. C
5. B
6. A
7. D
8. D 9. A 10. D 11. C
12. B 13. D 14. C 15. D
16. D 17. C 18. A 19. G 20. E
21. B 22. A 23. D 24. C 25. D 26. C 27. B 28. D 29. C 30. A 31. B 32.
C 33.
D 34. A 35. B 36. C 37. D 38. B 39. A 40. B
41. can 42. It
43. related 44. vary
45. Besides 46. have thought/have been thinking
47. less frequently
48. a 49. until
50. whether
51.(1).去掉the
(2).play→playing
(3).was→is
(4).seriously→serious
(5).Which→What
(6).addicting→addicted
(7).his→their
(8).teacher→teachers
(9).but→and
(10).instead后添加of 52.略。