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必修3 Module 6 课下作业（一、二）课下作业（一）单元语基扎根练Ⅰ.单词拼写1．It was not until he removed (摘掉) his sunglasses that I recognized him.2．Most dams (坝，堤) are built to control a river's water flow, improve navigation and control flooding.3．Still, the variety of the structures (结构) used in the example sentences benefits me greatly.4．He is a very careful man, but he can make mistakes which seem ridiculous (荒唐的)．5．Fathers have an enormous (巨大的) effect on their children's personalities.6．The plane crashed (撞上) into the mountain, but luckily the pilot survived.7．They made 30 days'accommodations (膳宿) for us in the activity during the summer holiday.8．We need to hold back global (全球的) warming and prepare for its outcome.9．It was so foggy (有浓雾的) that the driver could hardly make out the way ahead.10．The bridge, due to completed at the end of the year is still under construction (建造)．Ⅱ.语境语法填空1．Li Hua has always dreamed ❶of being admitted to Tsinghua University, which dates ❷from the 1910s. Now his dream ❸has_come (come) true. He is so excited that he can't hold ❹back his happy tears.2．Your opinion is ❶of great importance to the matter. But now ❷that the decision has been made, it makes no sense ❸to_argue (argue) about it any more. So we should bring ❹an end to the meaningless dispute.Ⅲ.语境改错文中共有6处错误，每句中最多有两处，请找出并改正。
题组层级快练(六)Ⅰ. 阅读理解(2019·河北衡水质量检测)Over a hundred years ago in 1911, something strange was found in the glaciers of Antarctica. Crilffith Taylor —an Australian geologist, had discovered a blood red stream pouring out of the ice cascades (瀑布)of Talor Glacier! Popularly known as the Blood Falls, scientists had not been able to find the reason behind the blood red liquid flowing through the ice—until recently. The mystery of the Blood Falls had finally been solved.When these falls were first discovered, scientists had believed that the red colour came from a large amount of red algae(海藻)concentrated in the water. Red algae contain a pigment(色素)which reflects red light, making the algae appear red.This theory made sense, until it was later found that algae do not play a part in the red color of the flowing liquid at all. What really causes Talor Glacier's waters appear blood red, is the presence of iron oxide in the liquid. The waters of the blood falls are rich in salt and iron content, and when this water comes in contact with the air, it turns red—just like rust! The water in these falls is often referred to as “brine” by scientists because of the high salt content in the water.This reasoning behind the red colors of the falls was found back in2003. However, the entire mystery had not yet been solved. How is it then, that the Blood Falls are not frozen?Researchers at the University of Colorado and University of Alaska found that inside the glacier, there was a network of channels and reservoirs that move the water around. Salt water has a lower freezing temperature. In addition, when any substance undergoes a change in state, it gives off heat. Therefore, the brine actually warm itself up while it's freezing! How this works, is that when the brine is flowing through the Talor Glacier, some of it does freeze. As a result of changing state from liquid to ice, the brine gives off heat. This heat is enough to keep the rest of the brine in liquid form, which is why it flows out of the glacier.Incredible new chemistry facts found, and mystery solved!1. According to the text, the red algae theory was once considered ________．A. ridiculousB. reasonableC. impracticalD. complex2. Why does the Blood Falls look red in colour?A. Because there is too much salt and iron in its water.B. Because its liquid is rich in red algae.C. Because the flowing liquid reflects red sunlightD. Because the air is thin and rare in Antarctica.3. What is the main reason for the Blood Falls' not freezing?A. The water continued flowing constantly.B. There is too much salt in the water.C. The brine gives off heat while freezingD. Temperatures aren't high enough for flowing water.4. What is the passage mainly about?A. The discovery of the blood glacier.B. The birth of the Talor Glacier.C. The flowing red water in Antarctica.D. The mystery of the Blood Falls.答案与解析【文章大意】一百多年前的1911年澳大利亚地质学家在南极洲的冰川中发现了一些奇怪的东西——血瀑布。
题组层级快练(十)Ⅰ. 阅读理解(2019·东北三省模拟)Spending money on time－saving services reduces stress and boosts(增进)happiness, according to a new research, but shockingly, few of us do it.Whillans, a professor at HBS said, “Buying time helps to protect us from the stress in our lives caused by time pressure, and the feeling that we don't have enough minutes in the day to complete our tasks.”The effect was clearest in the Canadian experiment, in which 60 working adults were given $40 to spend in two different ways. One weekend, they were told to spend the money on a material purchase—a gift for themselves. The next weekend, they were instructed to spend the $40 on anything that saved them time, from paying the neighbor's kid to run errands(跑腿)to taking an Uber instead of a bus.“On the day they made the time－saving purchase, they felt happier, in a better mood, and lower feelings of time stress than on the day they bought a material purchase，”said Whillans.The biggest surprise to the researchers was how few people would spend money on time－saving services. When they asked 98 working adults how they would spend a “windfall” of $40, only two percent named a purchase that would save them time.“One reason，”said Whillans, “is that we're very bad at remembering how much we hate doing certain tasks once the suffering has passed. That makes us less likely to take active steps to avoid thatoverburdened feeling in the future.” But another possible cause is good old－fashioned guilt. “If you feel guilty about getting someone to clean your house for you, then you might get less happiness from outsourcing(外包)that task，”said Whillans, “or you might just be less likely to spend your money in that way.”1. In the Canadian experiment, the participants ________．A. were divided into two groupsB. were given $ 40 every two weeksC. were asked to give money to a neighbor's kidD. were asked to spend the money in different ways2. According to the author, what can make people less time－stressed?A. Paying much for a concert ticket.B. Taking a regular bus to get to work.C. Employing someone to clean the garden.D. Buying themselves an expensive present.3. When it comes to spending money on “buying time”，________．A. no people would like to do itB. a small percentage of people choose to do itC. more people will do it if extra money is givenD. most people like the idea but don't practice it in life4. What do the underlined words “that overburdened feeling” in Paragraph 6 refer to?A. The good old－fashioned guilt.B. The feeling of spending money on goods.C. The stress of having someone clean your house.D. The discomfort when completing tasks we hate doing.答案与解析【文章大意】本文讲述了如何解决时间不足的问题并且提升快乐。
必修3 Module 4 课下作业（一、二）课下作业（一）单元语基扎根练Ⅰ.单词拼写1．Universities call all the students to learn to recycle (重新利用) all the waste paper.2．The weatherman has forecast (预报) that it will stay hot for another 5 days.3．Economic development is both consistent with and contradictory to environment (环境)．4．Cycling is an absolutely (绝对地) energy-saving means of transportation.5．By painting buildings white, cities may slow down the warming process (进程)．6．In life and work, many of us have used emoticons to send positive atmosphere (气氛) or soften statements.7．There is convincing evidence (根据) that listening to loud music can do great harm to our hearing.8．He did nothing but complain (抱怨) to me about the food and the service of the restaurant.Ⅱ.语境语法填空1．It's generally agreed that trees do a lot of good to the environment. They take ❶in carbon dioxide and give ❷out oxygen.However, if we keep on ❸cutting (cut) down trees, disasters like sandstorms are likely to come one after ❹another.2．Nowadays the number of electric cars is rising rapidly, which has a bad effect ❶on/upon the road safety. Often we ❷are_caught (catch) in the traffic jam ❸as a result of electric car drivers not obeying traffic rules. And if we look ❹through newspapers, we can often see accidents caused by electric cars.3．Now more and more people have realised that air pollution affected their health and complained ❶of/about it. However, it is no use complaining. As far as I'm ❷concerned (concern), it is urgent to ❸strengthen (strength) people's awareness of the environmental protection.Ⅲ.语境改错文中共有5处错误，每句中最多有两处，请找出并改正。
题组层级快练(十七)Ⅰ. 阅读理解(2019·河南开封模拟)Eighteen years ago, Terry Grahl, was pregnant with her fourth child. “Money was very tight.”Terry recalls. So when her mom called to ask if she'd like to go shopping at the local fabric(布料)store for the coming Christmas, she couldn't say no because she knew she badly needed some fabrics to make new clothes for her children. “I remember walking around, gazing at all this beautiful fabric, wondering whether there is anything cheap that I could afford. And I could still get som e money left to buy Christmas gifts for my family.”Well, Terry's mom must have known what Terry was thinking. Smiling kindly, she whispered to Terry, “You pick any fabrics you like. It's your Christmas gift from me.”Terry's eyes were filled with tears as the cart began to overflow with many fabrics, but not because Terry was planning on making herself a pretty dress or a pair of curtains for the kitchen. Rather, Terry's mom's kindness had inspired some holiday gift ideas in Terry, and it didn't take long for Terry to figure out what she was going to do with all that fabric.“I was going to make my first quilt.”She explains. “Every night I would work on this queen－size quilt. With every stitch(一针), I thought about all that my mom had done for me over the course of my childhood, during which we were always battling homelessness, but Momsomehow managed to fill our lives with love and make everything okay.”On Christmas day, five days after her baby girl was born, Terry handed her mom a gift box. Inside was the quilt she had sewn, from the fabric her mother had given her as a gift.1. What do we know about Terry eighteen years ago?A. Terry made a living by making clothes.B. Terry had a bad relationship with her mom.C. Terry and her family lived a hard life at that time.D. Terry often went shopping at the local fabric store.2. Which of the following words best describes her mom?A. Strict.B. Critical.C. Faithful.D. Considerate.3. What made Terry change her idea about Christmas gift?A. The value of the fabric.B. The responsibility for her family.C. The memory of her childhood.D. The endless love from her mother.4. What is the best title for the text?A. A Christmas DayB. The First QuiltC. Colorful FabricsD. Hard Childhood答案与解析【文章大意】这篇文章主要讲述了十八年前，Terry和她的家人在那时过着非常艰难的生活。
题组层级快练(十一)Ⅰ. 阅读理解(2019·安徽省高三上学期考试)Have you ever wondered when dogs first became “man's best friend” and the world's favourite pet? If you have, then you're not alone. When and where dogs first began living side by side with humans are questions that have stirred hot debate among scientists. There are a few hard facts that all agree on. These include that dogs were once wolves and they were the first animal to be domesticated(驯养) by humans. They came into human lives some 15，000 years ago, before the dawn of agriculture.Beyond that, there is little agreement. The earliest bones found that are unquestionable dogs' and not wolves' date from 14，000 years ago. However, 30，000yearold skulls have been discovered in France and Belgium that are not pure wolves' and some scientists think could be dogs'.With such puzzling evidence, many scientists are now turning to DNA to find out when and where dogs were first domesticated. In one research project, tens of thousands of blood samples have been taken from street dogs around the world. The plan is to compare them with those of wolves. It's even possible to analyse DNA from ancient bones. Tiny pieces of the 30，000yearold skulls mentioned earlier are currently being studied, and another DNA study has already shown that ancientdogs preserved in the Alaskan ice fields evolved from Asian wolves, not American ones.Indeed, the ancient DNA may turn out to be more informative than the DNA of living dogs. Because dogs have accompanied humans around the world for thousands of years, their current distribution may tell us very little of their origins. This is why different groups of scientists believe that dogs variously originated in eastern Asia, Mongolia, Siberia, Europe or Africa.But why were the animals domesticated in the first place? The most recent theory is that dogs domesticated themselves, initially living in and around our ancient villages to eat any food thrown out. Today, this is a way of life still shared by three quarters of a billion unowned dogs worldwide.1. Which is the only statement generally agreed on by scientists studying dogs?A. Dogs originally were used as farm animals.B. Dogs evolved from wolves found in Europe.C. Dogs helped the development of agriculture.D. Dogs were the first animals to be kept as pets.2. Why does the writer first mention the 30, 000yearold animals' skulls?A. To show that dogs were much larger in the past.B. To prove that dogs developed from Asian wolves.C. To suggest that dogs may have evolved much earlier.D. To argue that dogs were first kept in France and Belgium.3. How did scientists determine the origins of the ancient dogs found in Alaska?A. By analyzing the age of their bones.B. By examining the animals' DNA.C. By studying the shape of their skulls.D. By comparing them with modern dogs.4. Why did dogs start living with humans?A. Because they were attracted by food.B. Because they were trapped by humans.C. Because they couldn't survive in the wild.D. Because they were trained to protect villages.答案与解析【文章大意】本文是一篇说明文。
研究发现，狗是从狼驯养而来的，早在一万五千年之前狗就进入了我们的生活。
科学家通过分析DNA去查证狗最初是在何时何地被驯养的。
1. 答案 D解析考查细节理解。
根据第一段第一句“Have you ever wondered when dogs first became ‘man's best friend’and the world's favourite pet？”，再结合倒数第二句可知，狗是第一种被人类驯养成宠物的动物，故D项正确。
2. 答案 C解析考查推理判断。
根据第二段第三句“However, 30, 000yearold skulls have been discovered in France and Belgium that are not pure wolves’and some scientists think could be dogs’．”可知，在法国和比利时已经发现了3万年前的头骨，它们不完全是狼的，科学家认为有一些可能是狗的。
据此可推知，该处提及三万年前的头骨旨在说明狗的进化历史更早，故C项正确。
3. 答案 B解析考查细节理解。
根据第三段尾句中的“another DNA study has already shown that ancient dogs preserved in the Alaskan ice fields evolved from Asian wolves, not American ones.”可知，科学家是通过检测DNA的方法来判断阿拉斯加狗的起源的，故B项正确。
4. 答案 A解析考查推理判断。
根据尾段第二句“The most recent theory is that dogs domesticated themselves, initially living in and around our ancient villages to eat any food thrown out.”可知，最近的一种说法是，狗是自己驯养自己的，最初生活在我们古老的村庄里或周围，吃人们扔掉的食物。
据此可推知，狗和人生活在一起的原因是它们被食物所吸引，故A项正确。
Ⅱ. 完形填空(2019·河北邯郸质量检测)Mike and I wanted to celebrate ourwedding anniversary. We made a __1__ at our favorite restaurant, but when we arrived, our __2__ wasn't well prepared.We walked toward the bar in the restaurant to wait. Mike __3__ a chair for me and the man next to me __4__ over to give me room to slide in. I smiled my thanks.“I'm here on business. Can you __5__ some interesting things to do __6__ when I have some time off？” the man asked.Mike and I immediately shifted our attention to the stranger. We love our adopted hometown and quickly suggested half a dozen fun __7__．The stranger's name was Bill. He and Mike __8__ to be both mechanical engineers. The two men had __9__ to talk about. Seconds turned into minutes and strangers turned into friends.When the hostess __10__ and told us our table was __11__，we said goodbye to Bill.“We're out to __12__ our wedding anniversary，”I said as we __13__ to follow the waitress to our table.“Wow! I really __14__ you taking the time to talk to me，”Bill said. “You could have __15__ me. Happy anniversary！”The evening sped by. Soon we had to go home. Mike signaled our waiter for the bill. __16__，the waiter smiled and handed us a note：Thank you again for talking to a stranger. I really appreciate your kindness. __17__ is on me.__18__，we looked at the waiter.“Yes，”he said. “It's true. He paid your bill.”We walked back to the __19__ to thank Bill, but his seat was __20__. But we never forgot his generosity and decided to pay it forward.1. A. reservation B. wishC. preparationD. plan2. A. room B. breakfastC. tableD. arrangement3. A. ordered in B. picked upC. took upD. pulled out4. A. moved B. gotC. jumpedD. came5. A. choose B. think ofC. recommendD. refer to6. A. frequently B. locallyC. entirelyD. exactly7. A. stories B. booksC. restaurantsD. activities8. A. announced B. seemedC. pretendedD. happened9. A. nothing B. littleC. plentyD. everything10. A. approached B. returnedC. repliedD. apologized11. A. full B. collectedC. readyD. clean12. A. congratulate B. celebrateC. holdD. watch13. A. got up B. took upC. came backD. showed up14. A. imagine B. appreciateC. mindD. enjoy15. A. helped B. seenC. forgivenD. ignored16. A. Instead B. ThereforeC. BesidesD. Otherwise17. A. Praise B. BlameC. ResponsibilityD. Dinner18. A. Curious B. SurprisedC. GratefulD. Relaxed19. A. kitchen B. barC. doorD. entrance20. A. dirty B. goneC. emptyD. occupied答案与解析【文章大意】文章主要讲述了作者和丈夫花时间与陌生人聊天，陌生人充满感激，主动为作者菜单买单的故事。
