2021年重庆皇冠中学高三英语上学期期中试卷及参考答案

2021年重庆皇冠中学高三英语上学期期中试卷及参考答案
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
Firefighters in Florida this week helped rescue a bald eagle with a fishing hook stuck in its beak（嘴）and the attached line wrapped around its wing and beak. Firefighters at Pasco County Fire Rescue Station 21 on Thursday were greeted by two children holding the injured bald eagle and seeking help, according to the station’s Facebook page.
The firefighters called Owl’s Nest Sanctuary（保护区）for Wildlife in Odessa for assistance and a volunteer came out to help. "It appears that the eagle was wrapped in the line for about two days, was underweight, and thirsty,” the post said.Floridahas one of the densest concentrations of nesting bald eagles in the lower 48 states with an estimated 1 ,500 nesting pairs according to the Florida Fish and Wildlife Conservation Commission.PascoCountyis located in the state's west central coast north ofTampa.
After the eagle was examined, it was placed in a container and taken to the sanctuary for treatment where Kris Potter, the sanctuary's director, successfully removed the hook.
The sanctuary posted on its Facebook page that the eagle is making up for lost time when it comes to food. "He's eating all his meals with great enthusiasm and doesn't leave a crumb（碎屑）behind,“ the post said. "In the meantime, this big guy is resting and recovering ——he's already looking so much better!”
After the eagle is considered stable, it will be taken toBuschGardensinTampafor further treatment, according to the post.
“ Thankfully the eagle appears in good health and veterinarians（兽医）believe that the eagle will fully recover," the post said.
When the eagle is cleared for return to the wild, it will be released in the area around Station 21 , the station said in its post.
“A big thank-you to everyone who helped save this bald eagle's life! We are thankful for this happy outcome!” the post concluded. The sanctuary used the story to remind those who enjoy fishing to properly dispose of their garbage.
4. Who initially found the injured bald eagle?
A. Firefighters.
B. Two children.
C. The sanctuary's founder.
D. A volunteer.
5. Where will the eagle be set free?
A. AtPascoCounty Fire Rescue Station 21.
B. In the neighborhood around Station 21.
C. In the sanctuary inOdessa.
D. InBuschGardensinTampa.
6. Why did the sanctuary post the story?
A. To win a good reputation.
B. To praise those firefighters.
C. To appeal to people to protect bald eagles.
D. To remind fishing lovers to deal with rubbish properly.
7. What can we know about the outcome of the event?
A. It's unexpected.
B. It's beautiful.
C. It's humorous.
D. It's discouraging.
C
According to the study posted onScienceDirect, gardening just two to three times a week increase the benefits of better well-being as much as possible and lower stress levels.
The research explored why residents engaged with gardening and the extent to which they recognized any health benefits from the activity.
A questionnaire was handed out electronically within theUK, with 5,766 gardeners and 249 non-gardeners responding. Data was collected on factors including garden typology（类型学）, frequency of gardening and
individual awareness of health and well-being.
"This is the first time the dose response（剂量效应）to gardening has been tested and the evidence from the survey strongly suggests that the more frequently you garden, the greaterthe health benefits," said Royal Horticultural Society (RHS) lead author Dr Lauriane Chalmin-Pui. In fact, gardening every day has the same positive impact on well-being than undertaking regular and powerful exercise like cycling or running.
When gardening, our brains are pleasantly entertained by nature around us. Gardening takes our attention away from ourselves and our stresses, therefore, it helps restore our minds and reduce unfavorable feelings.
Improving health, however, was not the main motive power to garden, but rather the direct pleasure gardening brought to the participants.
"Gardening is like effortless exercise because it doesn't feel as exhausting and hard as going to the gym, for example, but we canexpendsimilar amounts of energy," Chalmin-Pui added.
Most people say they garden for pleasure and enjoyment, so people who like gardening may be easy to be addicted to it. However, this sometimes may become a piece of good news, from the aspect of mental health. "We hope all the millions of new gardeners will be getting their daily gardening and feeling all the better for it. " Chalmin-Pui said in the interview.
8. What can be inferred about gardening from the survey?
A. Improving health is the aim of the participants.
BGardening makes no difference to health.
C. Health benefits from frequent gardening.
D. Too much gardening always does harm to health.
9. What does the underlined word "expend" mean in paragraph 7?
A. Consume.
B. Make use of.
C. Increase.
D. Save.
10. Why do so many participantslike gardening?
A. It isn't exhausting.
B. It is good for health.
C. It brings pleasure.
D. It is like going to the gym.
11. What is Chalmin-Pui's attitude to the new gardeners' gardening?
A. Carefree.
B. Supportive
C. Tolerant.
D. Indifferent.
D
The relationship between humans and the Amazon Rainforest has not always been a harmonious one. However, recent research suggests that the native peoples ofthe Putumayo region helped to protect the rainforest,
leaving it unchanged for 5,000 years. Perhaps humans’ coexisting with nature is possible after all.
The study, published in PNAS, looked at soil samples in the Putumayo region of the Amazon in Peru to find how humans influenced the land. The researchers found that the trees still growing in the region today have been growing there for the last 5,000 years — evidence that the area has not been home to cities and farmland in that time. Traces of charcoal(木炭) found in the, soil, however, indicate that people did live there; they just did so in a way that had minimum influence on their environment.
To come to these conclusions the team dug a 0.6-0.9 meter deep column into the ground, taking samples of soilfrom different heights along the column. Back in the lab, samples were carbon- dated to determine their age and then sorted under a microscope to look for microscopic mineral particles, known as phytoliths (植硅体). Phytoliths are essential evidence of plants— they remained in the soil thousands of years after the plant died. So researchers can use them to tell which plants have grown in an area in the past.
Over 5,000 years’ worth of samples, no species loss was detected. These findings suggest that contrary to common belief, the Amazon is not untouched by humans, but rather has been protected by them for thousands of years. The management of the rainforest by native peoples appears to have been vital in preserving its biodiversity and will continue to be important in the fight to prevent it from acollapse.
As Nigel Pitman, a co-author on the paper, said: “Since this particular forest is still being protected by native peoples, I hope this study reminds us all how important it is to support their work.”
12. How did native peoples deal with the rainforest in the region of Putumayo?
A. They always destroyed the rainforest.
B. They had a side effect on the rainforest.
C. They never lived in the area of the forest.
D. They had been in harmony with the forest.
13. What did the researchers try to find in the Amazon forest in Peru?
A. The diversity of the plants in the rainforest.
B. The evidence of human influence on the forest.
C. The nutrition of the soil samples in the rainforest.
D. The survival age of growing trees in the rainforest.
14. What does the underlined word “collapse” mean in Paragraph 4?
A. Sudden decrease.
B. Bad management.
C. Poor preservation.
D. Over development.
15. What can be inferred from Nigel Pitman's words?
A. Native peoples should protectthe rainforest.
B. We should help protect the Amazon Rainforest.
C. More science research should be done on rainforest.
D We should make good use of the Amazon Rainforest.
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
Tips for Submitting a Good Letter of Recommendation
If you consider applying for any colleges abroad, one of the most important parts is the recommendation letter. Its purpose is to give universities a complete picture of you.
___16___
But a credible (可信的) reference saying you’ve consistently worked hard on a project can be the difference between getting accepted or rejected.
Choose the right references
Universities want to know how well you work under pressure and how you react to criticism, basically your characteristics, abilities and mentality. A good referee (推荐人) should have a solid professional relationship with you and be able to communicate your academic and personal strengths.
___17___
Most universities ask for two recommendation letters. They are regularly split between a school professor and an extracurricular (课外的) source. Undoubtedly, it’s good to show your skills in the subject you want to study.___18___
Time
Professionals can sometimes find it hard to make time for writing recommendations.___19___So give them plenty of time and send them a link of your university’s recommendation letter guidance page, if possible.
Clear goals
Don’t be afraid to ask your referees to include certain qualities or examples you want to highlight. You should inform at least one of your referees about your career goals, grades and recent projects. They may not be referenced. But giving referees additional evidence to back up their points can make the letter more convincing.
___20___It’s where you can find what a university lays stress on, as well as some important information such as deadlines and so on.
A.Make sure to know more about your university.
B.You can write that you’re hard-working yourself.
C.They can be quite occupied during application season.
D.The more information you include, the better it may be.
E.Don’t forget to check each university’s guidelines for reference letters.
F.Examples of how you have demonstrated them are needed to add more credibility.
G.But other abilities that may not be apparent in the classroom can be equally valuable.
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It was a few days before Christmas many years ago. It looked like it would be a(n)___21___one for my family. The factory where I was working had laid off(解雇) many of us workers, so we didn’t have much___22___. My wife and I had saved to buy our young children some toys,___23___an unexpected car repair had taken most of our cash. We decided that we could only___24___to get one small gift for each of our children.
We arrived at the___25___, walked down the parking lot and saw people putting gifts into their___26___. We searched all through the store___27___to find one thing each of our small children would like.___28___, we were able to get one for each of them. We___29___the checkout (结账台), bought the toys and were___30___that we even had a few dollars___31___finning. As we walked out of the store into the winter___32___, I stopped and dropped those___33___into the charity box. I didn’t have a dime (一角硬币) left but that didn’t___34___. Suddenly, it felt like Christmas.
I think the___35___actress Dale Evans___36___it best when she said: “Christmas, my child, is love in___37___.” It doesn’t have to be a gift of money, either. When we___38___our smile, it’s Christmas. When we give others our___39___and compassion (同情), it’s Christmas. When we do anything at any time to___40___another, it’s Christmas. May you do all you can to make it Christmas every day of the year and every day of your life here.
21. A. color1 ful B. poor C. early D. exciting
22. A. time B. energy C. noise D. money
23. A. but B. or C. so D. if
24. A. refuse B. remember C. afford D. hesitate
25. A. store B. station C. gym D. hospital
26. A. offices B. bedrooms C. cars D. houses
27. A. forgetting B. agreeing C. pretending D. hoping
28. A. Immediately B. Thankfully C. Sadly D. Strangely
29. A. headed for B. gave up C. turned off D. kept off
30. A. discouraged B. worried C. puzzled D. surprised
31. A. watched over B. looked over C. left over D. taken over
32. A. air B. forest C. cave D. season
33. A. gifts B. books C. dollars D. fruits
34. A. work B. bend C. stop D. matter
35. A. lucky B. wonderful C. foolish D. proud
36. A. put B. broke C. threw D. cleaned
37. A. force B. control C. action D. silence
38. A. hide B. share C. change D. support
39. A. truth B. power C. kindness D. health
40. A. choose B. hold C. enjoy D. help
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
Many of us are raised with the saying “Waste not, want not.” None of us, however, can___41.___(complete) avoid waste in our life.
Whether we waste our potential talents, our own time, our___42.___(limit) natural resource ,our money___43.___other people’s time, each of us can become more aware and careful. The smallest good habits can make a big___44.___(differ). It’s a good feeling to know in our hearts we are doing our best in the world___45.___is in serious trouble. By focusing on___46.___(save) oil, water, paper, food and clothing, we are playing___47.___vital part in cutting down on waste..
We must keep reminding___48.___(we) that it is easier to get into something than to get out of it. Actually, sever damage___49.___(do) to our land is fairly recent in the history of our evolution. It’s time for us to say no to waste so that our grandchildren’s children_____50._____(be) able to develop well. We can’t solve all the problems of waste, but we can encourage mindfulness.
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.When doing homework at the weekend at home, I sometimes have a hard time concentrate. Recently, I have found solution to the problem. One day, I happened to finding that a teenage girl was hosting a "study with
me" livestream, in which she simple sat at her desk and studied. I decided to join her and it turns out that having a virtual study partner were helpful. Every time I was about to turn to her phone or other activities, I saw her still working hard, what inspired me to focus on my study. I love her video so many that I have got used to studying while having been the girl at the comer of my desk.
第二节书面表达（满分25分）
52.阅读下面短文，根据内容写一篇60词左右的内容概要。

Not everyone is lucky and can claim that they share a great relationship with their own parents. As you age, your points of view on life may greatly differ from those of your parents. Due to the generation gap, there is a huge possibility of misunderstandings between parents and children. All these can lead to conflicts. So what can you do to get along well with your parents as a teenager?
First, make sure that your behavior is responsible and mature. Carry out the duties your parents have assigned to you. If you complete your daily chores on time, you will realize your parents don't blame you so much! Don't go out of the way to do something which your parents have forbidden you from doing.
As you enter your mid-teens, you will realize you want to be independent, from choosing what to eat for breakfast, to buying your clothes, and making new friends. This change is going to cause a conflict between you and your parents. Keep in mind that parents will not agree to your decisions right away. You will feel you have controlling parents, and that there is no way out of the situation. To avoid further conflicts, talk to them. Hear them out. It's the best way to solve a lot of problems. In addition, calm yourself down when conflicts occur. It might take some time for your parents to realize that their little kid is growing up and is entitled to his or her own opinions.
Make it a point to talk to your parents every day about your school life, friends, your day-to-day activities, your teachers, just about anything. If you're stressed about any problem at school, discuss it with your parents. They are the best people to help you out and deal with it.
In a word, love and respect your parents for what they are and everything they've done for you, and no doubt, they'll in turn respect you for turning into responsible adults.
_____________________________________________________________________________________________ _____________________________________________________________________________________________ _________________________________________________________________________
参考答案
1. C
2. D
3. D
4. B
5. B
6. D
7. B
8. C 9. A 10. C 11. B
12. D 13. B 14. A 15. B
16. B 17. F 18. G 19. C 20. E
21. B 22. D 23. A 24. C 25. A 26. C 27. D 28. B 29. A 30. D 31. C 32.
A 33. C 34. D 35.
B 36. A 37.
C 38. B 39. C 40. D
41. completely
42. limited
43. or 44. difference
45. that/which
46. saving 47. a
48. ourselves
49. done 50. will be
51.(1). concentrate→concentrating
(2). found 后添加a
(3). finding→find
(4). simple→simply
(5). turns→turned
(6). were→was
(7). her→my
(8). what→which
(9). many→much
(10).去掉been
52.略。