最新高中人教版英语选修7课后练：Unit 3 Under 课后限时作业3.1 Word版含答案

合集下载

新课标新高考之人教版高中英语选修七课时习题精做：Unit 3 Under the sea Section Ⅲ 含答案解析

Unit 3Under the seaSection ⅢLearning about Language & UsingLanguage课时习题精做Ⅰ.单句语法填空1．Everything in the room was turned upside down.2．Before he became aware of what had happened，the taxi had disappeared.3．On seeing a snake crawling towards her，the little girl was scared to death.4．Being held up in the water，the boy looked rather happy.5．Having cleaned the whole house，he went out to throw all the rubbish away.6．Because of the serious pollution，some fish are in danger of disappearing in the river.7．She was on the way home hurriedly in case that she would be trapped in a traffic jam.8．His parents hope in years to come he will reflect on his decision.Ⅱ.单句改错1．I don't like this kind of television advertisements targeting at children.targeting→targeted 2．There are many cars catching in the traffic jams on the weekend.catching→caught 3．I always keep my sheep tying to a tree on the riverbank.tying→tied 4．Tom is angry.The reason is because he doesn't like being laughed at in public.because→that 5．I didn't become aware his arrival.aware后加of Ⅲ.阅读理解A(2019·四川绵阳检测)German artist HA Schult is an unusual artist who uses trash(废物) to make sculptures(雕塑)．“We are living in a time of garbage，”says Schult.“I created a thousand sculptures of garbage.They a re a mirror of ourselves.”Here，Schult was talking about his 1,000 trash sculptures in the form of humans.He first exhibited (展览) them in 1996 in the western German state of North Rhine-Westphalia.“They are social sculptures，”he explains.“They are not onl y sculptures for the eyes.They are sculptures to spread the idea that we live in a time of garbage.”So far，Schult's social sculptures have been on show in Paris，in Moscow's Red Square，on the Great Wall of China，and in the desert next to the Pyramids of Giza near Cairo.HA Schult's work is unforgettable.Although his work has had a big influence on the art world，Schult remains modest about his creations：“Artists have to learn all the time.We are not important.All that counts is the time in which we are living.”Trash art has been around for years.But it seems that only the popular artists are regarded as true artists when working with trash.Why can't common people be considered artists when they use the same things and change them into some form of personal art？Maybe it's because we all have our own preset ideas of what art is and isn't，or whom artists are or should be.You can be an artist like Schult if you try.Look at used metal cans.What might be done with them？Imagine them in any number of new uses，or imagine them simply as an art form.What about boxes or clothing? Boxes can usually serve as new storage containers and houses for pets.And clothing? Imagine taking old clothes and turning them into hats or bags.【解题导语】本文主要讲述了一位德国艺术家利用垃圾创造艺术作品的故事，并以此鼓励读者行动起来，为环保出一分力。

2019-2020学年人教版高中英语选修七课时作业：Unit 3 Under the sea Se

姓名，年级：时间：Unit 3Under the seaSection ⅣGrammar & Writing课时作业Ⅰ.单句语法填空1．（2019·江西南昌校级月考）The lion was lucky that it just missed being caught (catch）．2．He enjoys being praised （praise) by others。

3。

_Having been told (tell） many times，he still couldn’t understand what the professor said。

4．Everyone has the right to speak，but not every idea is worth putting (put) into practice。

5. Being exposed （expose) to the sunlight for too much time will do harm to your skin.6．We have to go now,for we can’t risk being punished （punish) by our teacher。

7．What frustrated Lily most was her not being allowed （allow) to go abroad alone。

8．As is known to us all，the children’s being educated （educate） ina good atmosphere is what all parents wish for.9. Being watched （watch） by a crowd of people,Shirley felt nervous,not knowing what to say。

新高考英语人教版一轮复习课后练习第1部分选修7Unit3Underthesea

第一部分选修7Unit 3Ⅰ.阅读理解A(2021年山东省济南外国语学校质量检测)Almost anywhere you go in the United States, you’re bound to find a fast－food joint to serve you quick and tasty , a consumer research brand, conducted a survey and reported on the percentage of customers who said their last visit to one of these fast food joints.SbarroNothing says easy eating like ordering a fact, you can quickly satisfy your Italian craving (渴望)by going to one of the Brooklyn－based pizza joints now located in over 20 prove how simple it is to get your extra large slice, take it from the 66 percent of customers who said they last went to Sbarro because it was a convenient option.Denny’sThis American diner is where you can go to order a Grand Slam at any hour of the day. Seriously, what could be better than a full plate of diner food at midnight? Perhaps some of their 24－hour locations contributed to 66 percent of customers saying that eating at Denny’s was convenient for them.Quiznos SubsMaking your own sandwich is a great option for a grab－and－go lunch. It’s so convenient that 65 percent of customers said that’s the reason why they last ate at a Quiznos. However, eating an Italian sub might not always be the healthiest are the 9 foods nutritionists never order at fast food restaurants.McDonald’sIn the United States, there are over 14,000 McDonalds locations! Having so many golden arches glowing across the states helps place McDonalds at the number one spot of most convenient fast－food the customers surveyed, 72 percent went to McDonalds last because it was the most convenient option.()1．Which is the most convenient restaurant?A．Sbarro.B．Denny’s.C．Quiznos Subs.D．McDonald’s.()2．What helps Denny’s attract customers?A．24－hour locations.B．Midnight customers.C．Brooklyn－based pizza.D．The grab－and－go lunch.()3．What’s the similarity of these restaurants?A．They are located in many countries.B．They provide Italian fast food.C．They sell nutritional meals.D．They serve quick and tasty food.【语篇解读】本文是一篇说明文，介绍了Datassential的一项调查，讲述了美国四家连锁快餐店的顾客百分比以及他们受欢迎的原因。

人教版高中英语选修7Unit 3Under the Sea同步练习3

选修7 Unit 3 Under the sea单元测试题姓名班级得分自我评价第一部分听力略（共两节，满分30分）第二部分英语知识运用（共两节，满分35分）第一节单项选择（共15小题；每小题1分，满分15分）从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

21. —I don’t think this TV set is of good quality. Can you replace it with a new one?— ___________. But I have to talk to my manager first.A. I’m sorryB. No wayC. No problemD. That’s a question22. One of the judges __________ to Gana’s film festival was a famous artist from China, Zhang Ziyi.A. invitedB. to inviteC. had been invitedD. being invited23. I was scared _______ when I saw the tiger jumped out of the cage and ran to the little child.A. to the deathB. of deathC. into the deathD. to death24. Please post this letter in the post office nearby, and __________, I will get two tickets in the train station.A. in meantimeB. on the meanwhileC. in meanwhileD. in the meantime25. Don’t turn the room __________, as I have just tidied it.A. upside downB. insideC. outsideD. inside down26. Most parents are not __________ the danger of their babies’ eating jelly, which causes most unfortunate incidents to happen.A. well aware toB. very aware ofC. aware thatD. well aware of27.Wang Gang is considering buying a computer, is considered to be a great help in our work and study.A. asB. whichC. thatD. what28.As we grow up, it always _______ that after we give something up, we gain something new in its place.A. suggestsB. promisesC. requiresD. seems29. The Chinese are proud of the 29th Olympic Games _____ in Beijing in 2008.A. holdB. being heldC. heldD. to be held30. They ______ the _______ snake by using a special kind of powder.A. poisoned; poisonedB. poisoned; poisonousC. poisonous; poisonedD. poisonous; poison31. I need time to _______ on what you offered.A. considerB. reflectC. imagineD. suggest32. While shopping, people sometimes can’t help ________ into buying something they don’t really need.A. to persuadeB. persuadingC. being persuadedD. be persuaded33. Getting a notebook to help you keep a schedule of the things will _______ you putting things off.A. stopB. keepC. makeD. allow34. Can you imagine a person ___________ in the institutional revolution for doing nothing wrong?A. putting into prisonB. to stay in the prisonC. being put into prisonD. to put into prison35. —I’m dead tired. I can’t walk any farther, Jenny.— _______, Tommy. You can do it!A. No problemB. No hurryC. Come onD. That’s OK第二节完形填空（共20小题；每小题1分，满分20分）Many young people in the United States never finish high school. Exactly how many drop out is another issue. Recent studies of 36 rate have had conflicting results.For one thing, schools define and measure their dropout rates 37 . Some researchers say about 15 to 20 percent of public school students do not 38 their education on time. 39 many other experts and policymakers believe that for the past 20 years, the dropout rate has been around 30 percent. For Latino and black students, the 40 are even larger. Researchers say almost half of them 41 school. At the same time, almost half of the states let students leave school 42 the age of 18 without informing their parents.Finding a good job 43 a high school education is becoming more and more difficult. A Northeastern University 44 in 2002 found that almost half of all dropouts aged 16 to 24 did nothave a job. The 45 of a high school education can also 46 other problems. It is estimated that two-thirds of prisoners in the United States dropped out of high school.Recent studies have 47 that the majority of students who drop out do it because they are failing. Many are 48 with their classes or feel disconnected from their school and teachers. Some students feel that educators place low 49 on them.During the past 20 years, there have been efforts to 50 graduation rate through education reforms. Some communities are working on dropout 51 programs. These include some alternative high schools to meet special 52 .Experts think “early warning systems” can help 53 young schoolchildren at the risk of dropping out of high school. They say schools also need to get 54 more involved, especially if their children are 55 school often.36. A. research B. finishing C. dropout D. completing37. A. personally B. individually C. differently D. similarly38. A. complete B. reach C. practise D. operate39. A. And B. Besides C. Instead D. But40. A. people B. students C. dropouts D. numbers41. A. approach B. leave C. stay D. enter42. A. after B. until C. before D. when43. A. without B. together with C. out of D. off44. A. project B. design C. sketch D. study45. A. importance B. lack C. need D. requirement46. A. lead to B. result C. conclude D. include47. A. noticed B. watched C. shown D. inspected48. A. bored B. interested C. indifferent D. unconcerned49. A. outlook B. prediction C. remark D. expectations50. A. decrease B. reduce C. increase D. unite51. A. prevention B. conservation C. permission D. admittance52. A. needs B. ways C. advantages D. means53. A. receive B. accept C. get D. identify54. A. mates B. teachers C. parents D. neighbours55. A. missing B. staying C. leaving D. studying第三部分阅读理解（共20小题；每小题2分，满分40分）AFor many years, women could only be seen on the seat behind the men operating the two-wheeled motorcycle. Now more and more women are taking the front seat. More than twenty million people in the United States ride motorcycles.Since 1998 the number of female bikers has risen sharply. Lady Sport Riders began in 1999 in Washington. The women formed the organization to share their love of motorcycle riding. But later it wanted to be more than just an organization for women to gather and ride motorcycles, so it started to organize events that help national health organizations and women’s shelters. It also permits women to share a strong sisterhood, and gives financial awards to poor students. Like other motorcycle clubs, the members of Lady Sport Riders also help their community.Different from male riders, female riders ride for more than fun. This sport gives women a sense of freedom and control. Female riders have helped change motorcycle culture. More than five years ago manufacturers began making equipment especially for women. Some bikes now have smaller, softer seats and controls that are easier to reach. Modern clothes for riding now look good and still provide protection. In the past, women rode motorcycles that traveled at a moderate speed. Now theirs are as powerful as the ones men ride. Safety is very important when riding because the risk of injury is high. So the women wear protective clothing and equipment at all times, especially for the head.Lady Sport Riders believes women have earned their place in the sport of motorcycle riding. When speaking of male motorcyclists, the members of the club say, “They Made the Game. We Came to Play!”56. What can we learn from the first paragraph?A. Motorcycle riding used to be considered a male sport.B. The number of female motorcyclists is now larger than that of male riders.C. Female motorcyclists are more skilled at riding than male riders.D. More and more women have an adventurous spirit.57. In the beginning, Lady Sport Riders was organized to .A. allow women to take up motorcyclingB. offer help to national health organizationsC. share their great interest in the sport of motorcyclingD. supply financial help to poor students58. What do men motorcyclists mainly expect to get from motorcycling?A. Strength and power.B. A sense of freedom.C. Money and fame.D. Pleasure from this sport.59. Compared with the past, the present equipment makes riding more ______ for women.A. difficultB. pleasantC. riskyD. expensive60. What is the purpose of the passage?A. To talk about the development of motorcycle riding.B. To talk about the characteristics of the sport of motorcycling.C. To introduce a female motorcycle club to readers.D. To talk about the role women have played in the sport of motorcycling.BAbout 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drink seawater, how can it be important?Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important seawater is!Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in turn consumed by larger animals. These food chains are delicately balanced.The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most countries have introduced fishingrestrictions to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important seawater is!61. Which of the following is the proper order of the food chain?A. small animals→algae→microscopic animals→large animals→manB. algae→microscopic animals→large animals→larger animals→manC. small animals→algae→large animals→microscopic animals→manD. microscopic animals→algae→large animals →larger animals→man62. People used to think that the rubbish thrown into the sea ________.A. wouldn’t harm the fish in the seaB. would change the balance of the food chainC. would be broken down in the seaD. wouldn’t do much harm to the sea63. From the passage, we learn that _________.A. most fish and sea animals live at the surface of the seasB. it is very difficult to break the balance of a food chainC. excessive fishing has caused the decrease in fish stockD. it won’t be long before the problems concerning oceans will be solved64. Which of the following is NOT a way being used to protect oceans?A. The use of international agreements.B. Forbidding fishing to protect fish stocks.C. The use of new techniques.D. Raising people’s awareness of the need to protect oceans.65. What would be the best title of the passage?A. The importance of seawater.B. Life in the oceans.C. How to protect food chains.D. How to deal with seawater pollution.CHomes & Gardens12mths: £27.04Established for over 80 years, Homes & Gardens has always been engaging and accessible. Delivering inspirational decorating through real-life stories and beautiful photography, it is theultimate sourcebook of beautiful ideas and detailed information, and inspires its readers to become their own interior designers.Delicious12mths: £29.99Whether you are passionate about cooking and entertaining, or simply love food, Delicious is the magazine for you. Every month it’s packed with mouth-watering recipes, including menus from Jamie Oliver, tasty mid-week suppers and children’s meal ideas.Mother & Baby12mths: £19.50Mother & Baby is the UK’s best selling parenting magazine, and is full of information on pregnancy, birth and caring for your baby. Mother & Baby has over 40 years of experience on advising mothers how to care for their babies and is a well loved and trusted brand.TIME12mths: £34.99TIME brings you the pick of the most interesting and relevant new stories, delivering accurate knowledge at all times on all topics, which allows you to anticipate trends. With more than 30 million eager readers every week, can you afford not to take TIME?ON THE WHEEL12mths: £55.00The perfect read for anyone interested in classic cars, as it has the best buying advice, road tests and features. Features on restorations, road tests, reader models, keep the car fan entertained every month. The classified section and buyers guide provide a rich source of valuable information on price and makes and models.66. Those who want to learn about the latest changes in different fields will probably choose _______.A. Homes& GardensB. DeliciousC. TIMED. ON THE WHEEL67. Mrs Smith has a baby of only three and she likes to make her home unique, so she may be interested in _______.A. TIME and DeliciousB. Delicious and Mother& BabyC. TIME and ON THE WHEELD. Homes & Gardens and Mother & Baby68. What does Jamie Oliver (mentioned in Delicious) probably do?A. An engineer.B. A chef.C. An actor.D. A designer.69. What is the purpose in writing this passage?A. To talk about the contents of these magazines.B. To introduce these magazines to readers.C. To get more readers to subscribe to these magazines.D. To encourage readers to read as much as possible.70. The readers of these magazines are possibly _______.A. menB. womenC. childrenD. grown-upsDNow, we know that if we do not get enough vitamins, we are at risk of developing a number of diseases. As a result, vitamin supplements（补品），though expensive, are popular with people who worry that they are not getting enough vitamins from the foods they eat. But contrary to what many people think, medical experts have found little evidence that most supplements do anything to improve health or protect against disease.In fact, medical experts warn that taking too many of some vitamins can be harmful. For example, too much vitamin E can cause bleeding. People should discuss what vitamins they take with their doctors, as some vitamins can produce harmful side effects when mixed with medicines. Experts, however, do say that sometimes vitamins can help prevent disease. People who know they lack a particular vitamin should take vitamin supplements. Some older adults, for example, may not have enough vitamin B-twelve. This is because, as people get older, their body loses its ability to take it from foods. Also, people who spend much time inside may need some extra vitamin D as the skin makes this vitamin from sunlight.Different vitamins are found in different foods. Vitamin A is found in fish liver oil. It also is in the yellow part of eggs. Sweet potatoes, carrots and other darkly colored fruits and vegetables contain substances that the body can change into vitamin A. Vitamin B-twelve is found in green leafy vegetables and other foods, like fruits. Vitamin K can be found in pork products.In fact, for most people, a balanced diet can ensure enough of the vitamins our bodies need. So, it is important for us to eat a mixture of foods every day to ensure that we get enough vitamins our bodies need.71. What is probably talked about before this passage?A. How many vitamins a person’s body needs.B. How many vitamins some foods contain.C. The benefits that vitamins bring to our health.D. What people should do to stay healthy.72. Vitamin supplements are popular with people because ________.A. people mistakenly think that they are good for their healthB. they contain more vitamins than the foods people eatC. food does not provide enough vitamins people needD. people fear that a lack of vitamins will lead to disease73. From the passage, we can learn that medical experts advise people _________.A. never to take any vitamin supplementsB. to depend only on food for their vitaminsC. not to take any vitamins together with medicinesD. to consult doctors before taking vitamin supplements74. For people who lack Vitamin B-twelve, they can eat more from _______.A. sweet potatoesB. pork productsC. green leafy vegetablesD. eggs75. What would be the best title of the passage?A. Getting enough vitamins through a balanced diet.B. Vitamin supplements do harm to our health.C. Vitamins are important to our health.D. Lacking vitamins can cause many diseases.第四部分写作（共两节，满分45分）第一节阅读表达（共5小题；每小题3分，满分15分）阅读下面的短文，并根据文章后的题目要求回答76-80小题。

人教版英语选修7课后练：Unit 3 Under 课后限时作业3.3 Word版含答案

Ⅰ.单句语法填空1.The possible reactions of the market should ______________(consider) before we act.2.Most teenagers are not aware ____ the bad effect of playing computer games.3.We haven’t discussed yet ________ we are going to place our new furniture.4.—What made you so _______(scare)?—The terrible noise outside the room.5.One of the most beautiful mountains _______ I’ve ever climbed is Mount Tai.6._________ a useful book you lent me last week！7.But for your help, I __________________(solve) that problem.8.It is reported that the temperature will decline ___________(sharp) in one or two days.9.—What can I do if I see someone injured?—You must stop him _____________(bleed) first.10.Thanks to the workers’great efforts, the construction work was completed ahead_____ schedule.答案：1.be considered句意：考查被动语态。

句意：我们行动前应该考虑市场可能的反应。

人教版高中英语选修七Unit 3 Under the sea

高中英语学习材料（灿若寒星*制作整理）Unit 3 Under the sea单元练测卷（时间：90分钟满分：120分）Ⅰ. 单项填空（共15小题；每小题1分，满分15分）从A、B、C、D四个选项中选出可以填入空白处的最佳选项。

1. Many lifestyle patterns do such __________ great harm to health that they actually speed up __________ weakening of the human body.A. a; /B. /; theC. a; theD. /; ／2. After the earthquake, the first thing the local government did was to provide __________ for the homeless families.A. accommodationB. occupationC. equipmentD. furniture3. —May I use your car tonight?—__________ . I'm not using it anyhow.A. Sure, go aheadB. I don't knowC. Yes, indeedD. I don't care4. Hearing the dog barking fiercely, away __________.A. the thief fledB. was the thief fleeingC. the thief was fleeingD. fled the thief5. In the near future, China will increase supply of smaller houses, __________ to help low-income families to buy houses of their own.A. aimsB. being aimedC. aimingD. having aimed6. The captain urged that the mission __________ before dark.A. must be finishedB. be finishedC. ought to be finishedD. was finished7. The lost car of Tom was found __________ in the woods off the highway.A. vanishedB. abandonedC. scatteredD. refused 8. __________ the city centre, we saw a stone statue of about 10 metres in height.A. ApproachingB. ApproachedC. To approachD. To be approached9. The couple have decided to __________ buying a car until their economic condition becomes much better.A. hold offB. hold onC. hold upD. hold back10. Whenever she heard that someone had trouble, she would go to __________ .A. find outB. work outC. carry outD. help out11. __________ from other continents for millions of years, Australia has many plants and animals not found in any other country in the world.A. Being separatedB. Having separatedC. Having been separatedD. To be separated12. The living room is clean and tidy, with a dining table already __________ for a meal to be cooked.A. laidB. layingC. to layD. being laid13. Many people are not __________ the danger of their children's bad habits.A. well aware toB. very aware ofC. aware thatD. well aware of14. In 1888, a major French newspaper announced the death of Nobel in an article __________ “The merchant of dea th is dead”, which indicated that Nobel was only thought of as one __________ from killing.A. read; profitingB. read; to profitC. reading; profitedD. reading; profiting15. The driver couldn't react quickly enough when the road bent __________ .A. seriouslyB. directlyC. positivelyD. sharplyⅡ. 完形填空（共20小题；每小题1.5分，满分30分）阅读下列短文，掌握其大意，然后从16~35各题所给的四个选项（A、B、C和D）中，选出最佳选项。

人教版高中英语选修7课后习题 Unit 3 Under the sea Section Ⅰ

Unit3UndertheseaSectionⅠ—WarmingUp,Pre-reading,Reading&Comprehending课后篇巩固提升一、写作词汇预习Reading部分的词汇,完成下列小对话或语段。

1.—Did anyone (目击) the robbery?—Yeah.Someone called the police.2.—What did he do when the fire broke out?—He (逃离) the burning building without doing anything.3.—Why were you so late for the conference?—My car broke down,so I had to (放弃) the car and walk the rest of the way.4.I (暂停) when I heard someone (呼喊) at me.5.We (催促) both sides to continue the(每年的) conference to discuss the problem.二、阅读词汇预习Reading部分的词汇,并写出画线部分的汉语意思。

If I had enough money,I would have a large house built as accommodation 1. on the shore 2. .I would go and live there in the summer holidays,watching sharks 3. swimming in the depth 4. of the sea with my telescope 5..Now I’m studying the wildlife conservation 6. and I hope everyone can help me.I know I can’t do it well without teamwork 7. and we’ll build a good relationship 8.with whoever likes studying the wildlife.住所 2.海滨 3.鲨鱼 4.深处 5.望远镜 6.保护7.合作8.关系三、单句语法填空1.The people in the earthquake-stricken area are in(urge) need of food,medicine and shelters.2.They abandoned (carry) out the plan for lack of money.3.I can’t help (wonder) what happened to that little girl.4.Italy,which has a much weaker tradition of immigration, (witness) a sharp increase in immigration in recent years.5.As we all know,long and short are (opposite).6.He (pause) before making the important decision.7.It was a time I had no interest in study and wanted to drop out of school.四、完成句子1.Although he (亲眼看见了这场交通事故),he didn’t remember what the driver looked like.2.As they(正要逃离去美国时),the war began.3.“No,”he replied,(没有停下来想).4. (被拽起来) from her bed,she felt very angry.5.There will be one day(当这些被遗弃的孩子) will find their natural parents.6.Even though I strongly(要求他留下来),he left finally.7.The doctor will be here soon.(在此期间),please be relaeantime8.He was obviously in some kind of trouble,but I didn’t know (如何帮助他).9. (随着我们更加靠近),I could see a whale (被攻击) by a pack of about six other killers.10.(花了半个多小时的时间) get the boat back to James.五、阅读理解ASharks use their good sense of smell to search for prey(猎物).But a new study shows that the rising levels of carbon dioxide in the ocean could reduce sharks’ ability to find food.It’s bad news for a healthy ocean.Sharks are top predators(掠食动物) and are like the ocean’s weed controllers.Dixson works at the Woods Hole Oceanographic Institution in Massachusetts.Her earlier work has shown that clown fish in acidifying(酸化的) water act strangely.“We want to expand this research to sharks,because we know how important it is for sharks to find their food through their sense of smell,” said Di started by placing sharks in each of three different pools for five days.Each pool had a different level of carbon dioe amount as today’s ocean water.The second had a level of carbon dioxide that scientists expect to reach by .The third pool had the highest level of carbon dioxide that could develop by the year 2100.Sharks weren’t allowed to eat any food while in the pools.This made sure that they would be hungry.Then,Die into a pool with two side-by-side streams of flowing water.In one stream,the researchers pumped water,in which a dead squid had been overnight.This water smelled strongly of the squid.The other stream contained ocean water with no scent(气味).Because each stream flowed at the same rate and in the same direction,the squid smell stayed in its stream.The sharks could choose to swim in either stream.Sharks that had been swimming for five days in pools of regular ocean water spent more than 60 percent of their time in the squid-scented stream.The same was true for sharks that had been in water with the carbon dioxide level that could develop by the year .But sharks exposed to the highest level of carbon dioxide spent just 15 percent of their time in the squid-scented stream.1.Why did the writer mention the sharks,smell at the beginning of the passage?A.Because the writer appreciates their ability to find food.B.Because the writer considers them dangerous to human beings.C.Because the writer intends to show how to control weed in the ocean.D.Because the writer worries about the sharks in the ocean.,主要是引出主题,即:海洋环境的改变会对鲨鱼的觅食能力造成危害。

春人教英语选修7课后练：Unit 3 Under 课后限时作业3.1 Word含答案

Ⅰ.单句语法填空1.The Browns lost their home in the big fire, and their neighbours provided them with__________ (accommodate).2.If you come to visit China, you will experience a culture of amazing ________(deep)and variety.3.The group called for the ______________(conserve)of water resources.4.These Chinese scientists have studied the______________(migrate)routes of the fish in the ocean for five years.5.I’m not sure of the exact ____________(relation)between Kate and Mary.I think they’re sisters.6.China_______________(witness)great changes in the past 20 years.7.He abandoned_____________(he)to drinking after his company went bankrupt.8.It ______________(urge) that strict measures should be taken to prevent drunken driving.9.Whenever she heard that someone had trouble, she would go to help ______.10.I was sorting ______ my accommodation when he called on me.答案：1.accommodation句意：布朗夫妇的家在大火中毁了，他们的邻居给他们提供膳宿。

1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。

2.depth句意：如果你到中国来游览，你将会体验一种有惊人深度和多样性的文化。

由and后用了variety 可知，所给词应用名词词性。

3.conservation句意：该组织呼吁保护水资源。

由语境可知此处应用所给词的名词形式。

4..migration句意：这些中国科学家研究这些鱼在海洋里的迁移线路已有5年了。

migration routes of the fish 鱼的迁徙线路。

5.relationship句意：我不能确定Mary和Kate之间的确切关系，我认为她们是姐妹。

relationship关系。

6.has witnessed句意：中国见证了过去20年的变化。

由于时间状语是in the past 20 years，因此witness应用现在完成时。

7.himself句意：他的公司倒闭后他沉迷于饮酒中。

abandon oneself to sth.沉迷于……。

8.is urged句意：有人主张应采取严格的措施来制止酒驾。

it is urged有人主张。

9.out句意：无论何时她听说某人有困难，她就会去帮忙。

help out帮忙。

help sb.out帮助某人摆脱困境。

10.out句意：我正在收拾我的住处，这时他来看我。

sort out收拾，整理，归类。

Ⅱ.单句改错1.We are looking for witnesses of the car accident.句意：我们正在寻找这起车祸的目击者。

witness用作名词时常与介词to连用。

2.We were fortunate enough to find the post office as soon as we got off the bus;it just opposite tothe bus stop.句意：我们很幸运，一下公交车就找到了邮局，它就在公交车站的对面。

opposite 在此用作形容词，构成be opposite to 在……对面。

3.They urged that the library must be open during the vacation.句意：他们呼吁图书馆在假日期间照常开放。

urge 后接的that 引导的宾语从句应用(should)+动词原形。

4.They abandoned themselves to drink.句意：他们沉湎于饮酒。

abandon oneself to 沉湎于；to 为介词。

5.I don;t really work here.I am just helping in the store when things are busy.句意：我不在这儿工作，我只帮帮忙而已。

help out 帮忙。

6.I was about to go out while someone knocked at the door.句意：我正准备外出，这时有人敲门。

sb. be about to do sth. when 为固定句型。

7.It was a time that this kind of music was very popular.句意：这种音乐曾经非常流行。

it was a time when 为固定句式。

8.Attention must be paid to stop the jewelry shop being robbed.句意：pay attention to“注意”，to 为介词。

9.Patience and love are what takes to be a qualified teacher.句意：耐心和爱心是一位合格教师所需要的。

本题考查了表语从句。

从句运用了一个句型：it takes sth. to do sth.。

what 的宾语，因此从句缺主语。

10.Nowadays people are more concerned about the environment they live.句意：定语从句缺引导词。

该引导词在从句中作状语。

答案：1.We are looking for witnesses 句意：我们正在寻找这起车祸的目击者。

to 连用。

2.We were fortunate enough to find the post office as soon as we got off the bus;it just opposite to the bus stop.句意：我们很幸运，一下公交车就找到了邮局，它就在公交车站的对面。

opposite 在此用作形容词，构成be opposite to (should)+动词原形。

4.They abandoned themselves to . 句意：他们沉湎于饮酒。

abandon oneself to 沉湎于；to 为介词。

5.I don;t really work here.I am just helping in the store when things are busy. 句意：我不在这儿工作，我只帮帮忙而已。

help out 帮忙。

6.I was about to go out someone knocked at the door. 句意：我正准备外出，这时有人敲门。

sb. be about to do sth. when 为固定句型。

7.It was a time this kind of music was very popular. 句意：这种音乐曾经非常流行。

it was a time when 为固定句式。

8.Attention must be paid to the jewelry shop being robbed. 句意：p ay attention to“注意”，to 为介词。

9.Patience and love are what takes to be a qualified teacher. 句意：耐心和爱心是一位合格教师所需要的。

本题考查了表语从句。

从句运用了一个句型：it takes sth. to do sth.。

what 引导表语从句，在从句中作take 的宾语，因此从句缺主语。

10.Nowadays people are more concerned about the environment they live. ∧ out while when drink drinking ∧ it stop stopping that when ∧ was ∧ where句意：定语从句缺引导词。

该引导词在从句中作状语。

Ⅲ.阅读理解(2016·河南鹤壁高中高三月考)It was Mother ’s Day morning last year and I was doingshopping at our local supermarket with my five-year-old son, Tenyson. As we were leaving, wefound that only minutes earlier an elderly woman had fallen over at the entrance and had hit her head on the concrete. Her husband was with her, but there was blood everywhere and the woman was embarrassed and clearly in shock.Walking towards the scene, Tenyson became very upset about what had happened to the couple. He said to me,“Mum, it’s not much fun falling over in front of everyone.”At the front of the supermarket, a charity(慈善) group had set up a stand selling cookedsausages and flowers to raise fund s. Tenyson suggested that we should buy the lady a flower.“It will make her feel better,” he said. I was amazed that he’d come up with this sweet idea. So we went over to the flower seller and asked her if we could buy a flower for the lady to cheer her up . “Just take it,” she replied.“I can’t take your money for such a wonderful gesture.”By now paramedics(急救人员) had arrived, and were attending to the injured woman. As we walked up to her, my son became intimidated by all the blood and medical equipment. He said he was just too scared to go up to her.Instead I gave the flower to the woman ’s husband and told him, “My son was very upset for your wife and wanted to give her this flower to make her feel better.”At that, the old man started crying and said,“Thank you so much. You have a wonderful son. Happy Mother ’s Day to you.”The man then bent down and gave his wife the flower, telling her who it was from. Though badly hurt and shaken, the old lady looked up at Tenyson with love in her eyes and gave him a little smile.1.What does the author intendto tell us?A.One can never be too careful.B.Actions speak louder than words.C.Love begins with a little smile.D.A small act of kindness brings a great joy.2.Which of the following is TRUE according to the passage?A.The elderly woman was knocked down by Tenyson.B.Tenyson ’s idea of buying a flower gained his mother ’s support.C.Tenyson ’s care for the elderly woman puzzled the flower seller.D.The elderly woman was moved to tears by Tenyson ’s gesture.3.The underlined word “intimidated” in the fourth paragraph probably means “______”.A.astonishedB.struck 语篇导读本文是一篇记叙文。