课件49张PPT。课 前 预 习考 点 学 练课件12张PPT。课件22张PPT。课 前 预 习考 点 学 练点此进入该word板块word部分： 请做： 第四单元综合测评双基限时练(十) Unit 4 Part Ⅰ
Ⅰ.单词拼写
1．What he said did not ________(影响) my decision.
答案 affect
2．The company suffered a heavy ________(损失) of that mistake.
答案 loss
3．The airport is about ten miles ________(距离) from the city, so you'd better take a taxi.
答案 distant
4．What he said in the meeting is of great ________(重要性), so we should pay attention to it.
答案 importance
5．You should________(申请) immediately, in person or by letter.
答案 apply
6．These seats are________(留给) for special guests.
答案 reserved
7．The western food________(含有) too much fat and sugar.
答案 contains
8. Butterflies, bees, flies, and ants are all ________(昆虫)．
答案 insects
Ⅱ.单句语法填空
1．I had a sudden feeling that his life was in ________ (dangerous)．
答案 danger
2．As a result ________ the earthquake, Jack can't work any longer.
答案 of
3．He didn't respond ________ my question.
答案 to
4．She succeeded in ________ (pass) the final examination.
答案 passing
5．The cruel girls killed the little cat ________ mercy.
答案 without
6．I really appreciate ________ (have) time to relax with you on this nice island.
答案 having
7．Wearing sunglasses can give you ________ (protect) against the sun.
答案 protection
8．The number of students ________ (decrease) so far.
答案 has decreased
Ⅲ.根据课文内容，完成语法填空
Daisy had always longed __1__(help) endangered species of wildlife. One day a flying carpet took her to a __2__ (distance) land in Tibet where Daisy saw an antelope looking sad. It told Daisy that they were being killed for the wool __3__ their stomachs. As a result, they are now an endangered species.
Then the flying carpet took Daisy to Zimbabwe, __4__ Daisy burst into laughter __5__ relief. There an elephant told her that they used to be an endangered species, __6__ that their numbers were increasing with the government's help. Daisy smiled when she heard that so many things __7__(do) there to save local wildlife, which showed the __8__ (important) of wildlife protection.
__9__ (final) the flying carpet and Daisy were in a thick rainforest, where a monkey was protecting __10__from mosquitoes by rubbing an insect over his body. The monkey also told Daisy to pay more attention to the rainforest and appreciate how the animals live together.
答案 1.to help 2.distant 3.beneath 4.where 5.in 6.and 7.were being done 8.importance
9．Finally 10.himself
Ⅳ.阅读理解
When I was a child, my favorite books were Gerald Durrell's animal books. I once tried to get a dog, but my parents did not seem to believe I would walk the dog three times a day, no matter how I promised I'd do it.
Then my mother told me a friend's cat had kittens and we could go and get one. At first I was disappointed, but with time I learned to love our cat so much.
I have said that owning cats must be close to madness, but at least life is interesting with cats around!
I just have to remember to fix everything in its place. If I don't, things fly. They seem to get airborne when cats are around — the more expensive an object is, the more it seems to enjoy flying. Also watering plants is no problem. During the years all the eatable plants have disappeared. The cactuses (仙人掌) that are left don't seem to interest cats much. Nor do they need much water. So in that respect life is easier.
Changing furniture is nice, too. Cats help in letting us know when it is time to change the sofa. Either when the fabric (织物) that has been combed with the cat's paws starts to look like Einstein's hair, or when no amount of work helps in finding the original color of the couch, thanks to the generous donation of the cat's hair. A soft sofa is nice, sure, but it sometimes gets a bit embarrassing (尴尬的) when all our guests leave the house with fur-trousers.
It would be nice to get flowers, but I do advise anyone against bringing them to me. It gets a bit tiring to walk around holding the flower vase all the time. If I put it down, the flowers meet their destiny(命运). No matter what flower — it is considered a kitty's snack.
1．The author's parents refused her a dog because ________.
A. she probably couldn't take good care of it
B. the family was too poor to afford one
C. it would probably do harm to her health
D. it would cause much trouble to the family
答案与解析 A 细节理解题。根据第一段第二句可知，作者的父母不给作者买狗的原因是担心作者不能照顾好它。
2．What does the author mainly tell us in the fourth paragraph?
A. The cat leads a comfortable life in the house.
B. The arrival of the cat makes the author happy.
C. The cat is naughty and always makes a mess.
D. The author does her best to make the cat happy.
答案与解析 C 主旨大意题。第四段作者主要说明了小猫的淘气，它经常把屋子弄得一团糟。
3．The author mentions Einstein in the passage mainly because of his ________.
A. theory B. appearance
C. nationality D. habit
答案与解析 B 推理判断题。根据倒数第二段第三句可知，作者把小猫弄坏的沙发罩等织物比作爱因斯坦凌乱的头发。
4．We know from the last paragraph that ________.
A. the author is willing to receive flowers as gifts
B. the author's cat suffers hunger from time to time
C. the author doesn't like playing with flower vases
D. the author's flowers are frequently damaged by the cat
答案与解析 D 推理判断题。文章最后一段暗示，作者的小猫经常毁坏她房间里的花。
Ⅴ.完形填空
We find different kinds of animals in the world. Some animals, such as tigers and lions, live in big forests and they are called __1__ animals. Some others like sheep and dogs are __2__ by men and they are called domestic animals (家养动物). These animals are very different from one another, but we can __3__ them into big groups: those that eat other animals and those that eat grass and leaves. Animals like the __4__ belong to the first group.
Animals are __5__ great use to human beings. Men __6__ wild animals for their fur and meat. Domestic animals are __7__ more important to men. Without them, life will be __8__. People make use of animals in many __9__.
Cows and pigs are useful to men's __10__. They give 80% of the __11__ men eat every year. Skin of some animals can be __12__ into expensive overcoats and shoes, which are warm and comfortable and __13__ a long time. They are very welcome in __14__ countries.
Wool, which is now one of the most important materials for textile (纺织) __15__， comes from some certain __16__. From cows, we get milk. And we shouldn't __17__ that some domestic animals are kept for transport (运输). Many people __18__ ride horses. Arabs ride on camels that travel in deserts for days without __19__. In some places animals are still used to plough the field. __20__ is clear that men just can't live without these animals.
1．A. wild B. serious
C. terrible D. fighting
2．A. trapped B. treated
C. sold D. kept
3．A. separate B. divide
C. turn D. change
4．A. chicken B. tiger
C. cow D. goat
5．A. with B. to
C. for D. of
6．A. hunt B. discover
C. raise D. care for
7．A. quite B. very
C. even D. some
8．A. smooth B. difficult
C. easy D. perfect
9．A. ways B. groups
C. places D. kinds
10．A. life B. work
C. family D. food
11．A. meal B. meat
C. dinner D. animal
12．A. put B. turned
C. made D. changed
13．A. last B. cost
C. take D. dress
14．A. cool B. cold
C. warm D. foreign
15．A. business B. worker
C. industry D. factory
16．A. sheep B. goats
C. cows D. animals
17．A. forget B. remember
C. realize D. notice
18．A. always B. hardly
C. still D. just
19．A. resting B. drinking
C. sleeping D. stopping
20．A. That B. This
C. It D. So
答案与解析
1．A wild意为“野生的”，由前面的“live in big forests”可知是野生动物。serious“严肃的”， terrible“可怕的”和fighting“斗争的”均不符合语境。故选A项。
2．D keep意为“饲养”，由后面的“domestic animals (家养动物)”可知此处填kept。trap意为“使……落入圈套(或困境)”， treat“对待；治疗”和sell“卖，销售”均不符合语境。故选D项。
3．B separate ... from ...“把……与……分开”不符合搭配。turn/change ... into ...“把……变成”不符合句意。divide ... into ...“把……分成”符合搭配和句意。故选B项。
4．B 由常识可知老虎是属于吃别的动物肉为生的动物。而鸡属于杂食性动物，奶牛属于食草动物，山羊也属于食草动物。故选B项。
5．D be of great use＝be very useful是固定搭配，意为“非常有用的”，其他选项均无此搭配。故选D项。
6．A hunt意为“狩猎”，此处是指人类捕猎野生动物是为了得到它们的皮毛和肉。discover“发现”， raise“增加；提高”和care for“照顾；喜欢”均不符合句意。故选A项。
7．C quite, very和some不能修饰比较级。故选C项。
8．B difficult意为“困难的”，此处是指没有家养动物，生活将很难。smooth“顺利的；光滑的”， easy“容易的”和perfect“完美的”均不符合语境。故选B项。
9．A way“方面”，此处是指人们从很多方面利用动物。group“群；组”， place“地方”和kind“种类”均不符合语境。故选A项。
10．A life意为“生活”，此处是指奶牛和猪对人类的生活是有用的。food“食物”， work“工作”和family“家庭”均不符合语境。故选A项。
11．B meat意为“肉”，此处是指它们提供人类所食用的肉的80%。meal“(一顿)饭”， dinner“晚餐；正餐”和animal“动物”均不符合语境。故选B项。
12．C be made into意为“被制作成”，此处是指一些动物的皮能被制成昂贵的大衣和鞋子。be put into“被放入”和be turned/changed into“被转变成”均不符合语境。故选C项。
13．A last“维持；够用”，此处是指昂贵的大衣和鞋子经久耐用。cost“花费”， take“拿走”和dress“(给……)穿衣”均不符合语境。故选A项。
14．B 由前面的“warm”可知动物的皮制成的暖和大衣和鞋子在寒冷的国家受欢迎。cool“凉爽的”， warm“温暖的”和foreign“外国的；陌生的”均不符合语境。故选B项。
15．C industry意为“行业”，此处是羊毛是纺织行业最重要的材料之一。business“商业，生意”， worker“工人”和factory“工厂”均不符合语境。故选C项。
16．D 毛来自某些动物。A、B和C三个选项概括不全面。故选D项。
17．A forget意为“忘记”，此处是指我们不应该忘记一些家养动物可以当作运输工具。remember“记得”， realize“意识到；实现”和notice“注意到”均不符合语境。故选A项。
18．C still意为“仍然”，现在仍然有许多人骑马。always“总是”， hardly“几乎不”和just“正好，仅仅”均不符合语境。故选C项。
19．B drink意为“喝水”，骆驼在沙漠里行走好几天都不用喝水。rest“休息”， sleep“睡觉”和stop“停止”均不符合语境。故选B项。
20．C It is clear that ...为固定句型，意为“显然……”，其他选项均不符合句型要求。故选C项。
双基限时练(十一) Unit 4 Part Ⅱ
Ⅰ.用所给动词的适当形式填空
1．— Can I use your telephone?
— Sorry, the telephone ________ (use) now.
答案 is being used
2．— I don't suppose the teacher knows who broke the vase.
— Well, surprisingly she does. Tom has been called and ________ (question) now.
答案 is being questioned
3．Kevin is always ________ (praise) by the teacher in class.
答案 being praised
4．We can't use our classroom, for it ________ (paint) now.
答案 is being painted
5．Your experiment report ________ (type) now and it ________ (finish) soon.
答案 is being typed; will be finished
6．No decision ________ (make) about any future appointment until all the candidates have been interviewed.
答案 will be made
7．Little Tony ________ (take care of) by his aunt because his parents are both busy with their work.
答案 is being taken care of
Ⅱ.语法填空
We are sad to know that nowadays great damage __1__(do) to animals by human beings. Many animals are endangered just because their habitats __2__(threaten). Rainforests __3__(cut) at such a speed that they will disappear from the earth in the near future. Rivers and lakes __4__(pollute) by factories. Another reason why many species are dying out is that they __5__(kill) either for food or for clothing. What if we continued to do whatever we like?
Thankfully, there is an organization called WWF, which is very concerned about this problem. With its help, wildlife parks __6__(set) up to protect endangered animals. For example, the African elephant now __7__(protect) in a wildlife park by WWF and their numbers __8__(increase) quickly.
Personally, I think it is everyone's responsibility __9__(protect) animals. Do remember：to protect animals is __10__(protect) ourselves!
答案 1.is being done 2.are being threatened
3．are being cut 4.are being polluted 5.are being killed 6.have been set 7.is being protected 8.are increasing 9.to protect 10.to protect
Ⅲ.阅读理解
A
Studies show that dogs and human beings have similar brain activity when they sleep. Researchers use a test called an electroencephalogram (脑电图) to study such activity.
When dogs first go to sleep, they enter a period of light sleep. This is when they can be easily awakened. In light sleep, dogs lie still and their breathing is normal.
When dogs enter deep sleep, they have difficulty waking up. Brain wave activity greatly increases. Dogs begin unusual breathing. Rapid eye movement also begins. During rapid eye movement, the eyes are moving quickly, forward and backward. Then dogs may begin to make sounds. Their bodies may make uncontrolled movements. Their legs move as if they are running. It may seem as if the dog is having a bad dream. It is best not to wake a sleeping dog. Like people, dogs need continuous sleep for healthy mental activity.
Researchers say dogs have several dreams each night. The amount of time spent sleeping is different with each animal. Most dogs sleep thirteen to fourteen hours a day.
Researchers also say small dogs dream more than large ones. The number of dreams each animal has is also linked to many things, including age. Young dogs dream more than adult dogs.
Many people wonder what their dogs are dreaming about. Researchers believe it is likely that dogs dream in a way similar to humans. They believe dogs dream of things that are pleasing to them, but unreal. They also say dogs dream of things that happen in everyday life, such as chasing things, playing and eating.
If you are wondering, cats dream, too.
1．When a dog is in light sleep, it may ________.
A. not breathe normally
B. lie still
C. make sounds
D. move its eyes quickly
答案与解析 B 细节理解题。根据第二段最后一句可知：狗在浅度睡眠时，躺着不动，呼吸正常，故选B。
2．When dogs enter deep sleep, ________.
A. they are easy to wake up
B. their breathing becomes abnormal
C. they begin to run when dreaming
D. they are as quiet as a mouse
答案与解析 B 细节理解题。第三段中提到狗在熟睡时begin unusual breathing，B项中abnormal意为“不正常的；反常的”，正与文中意思相符。
3．Which of the following indicates a dog doesn't enter deep sleep?
A. The eyes are moving rapidly.
B. The dog lies calmly and makes no noise.
C. The dog seems like it is having a bad dream and moves his body.
D. The dog is angry when you wake it up.
答案与解析 B 推理判断题。结合第二、三段可知，狗在浅度睡眠时会静静地躺着。
4．What's the best title of this passage?
A. Dogs Sleep at Night
B. Light Sleep and Deep Sleep
C. Dogs Dream as Human Beings Do
D. Dogs Need Sleep to Be Healthy
答案与解析 C 主旨大意题。文章第一句就点明大意，即狗和人类在睡眠过程中有同样的脑部活动。然后对其进行具体说明，故选C。
5．Which of the following statements is TRUE?
A. In deep sleep, dogs' breathing is normal.
B. It's no harm to wake a sleeping dog.
C. Dogs have several dreams each night.
D. Young dogs dream no more than adult dogs.
答案与解析 C 细节理解题。由第一段最后一句话排除A项；由第三段最后两句话排除B项；由第五段最后一句话排除D项；由第四段第一句可知C项正确。
B
Wildlife faces threats (威胁) from habitat destruction, pollution, and other human actions. Although protecting wildlife may seem too hard at times, even small actions in your own neighborhood can help protect many different animals. Here are some tips on how to protect wildlife through small actions.
1. Create wildlife friendly areas in your backyard.
When trying to make your garden more beautiful, you can choose plants that can provide food and shelter to native wildlife. This will also help cut down on pollution. And bird or bat houses to your yard or garden to attract and shelter these species.
2. Avoid harming the natural ecosystem (生态系统) in your area.
Some plants from other places can kill or harm native plants that provide food and shelter for wildlife.
3. Have a greener lifestyle.
By using less water and fewer fuels, you will be helping to protect the wildlife around you. Take buses or the subway when you can, turn off electric devices when you're not using them, take shorter showers, and keep your room temperature at or below 68 Fahrenheit degrees during the winter.
4. Buy products that are wildlife friendly.
Don't buy products that are made from endangered animals. Keep in mind that some endangered animals are killed by traps, catches or hunters who are after other wildlife within the same habitat.
5. Donate money or time to organizations that protect wildlife and their habitats.
You can give money to organizations or groups that protect wildlife species in your neighborhood.
6．We infer that the purpose of this passage is to ________.
A. tell us why protecting wildlife is extremely important now
B. suggest that we protect wildlife through actions
C. explain why protecting wildlife is not as hard as people think
D. give us some tips on how to protect wildlife through small actions
答案与解析 D 推理判断题。根据第一段最后一句和下文的小标题可知D项正确。
7．Which of the following threats to wildlife is NOT mentioned in the passage?
A. Animal diseases. B. Loss of habitat.
C. Pollution. D. Hunters.
答案与解析 A 细节理解题。根据文中的第一段第一句可知B、C两项提到了；D项是在第四条中第三句提到的。综观全文，只有A项没提到。
8．What behaviour do you think the author can disagree with?
A. Planting right trees in gardens.
B. Buying an ivory vase for a gift.
C. Donating some money to WWF.
D. Reading books about wildlife.
答案与解析 B 细节理解题。比较选项，并结合常识可知B项是作者所不能同意的。
9．In which section of a newspaper would you most probably read this passage?
A. Environment. B. Teaching.
C. Business. D. Geography.
答案与解析 A 推理判断题。本文主要讲了野生动物保护的一些建议。这些建议与环境有关系。故选A项。
Ⅳ.短文改错
As summer vacation is come soon, my classmates are trying very hardly to get train tickets to go home. But I have made up my minds to spend the vacation far from home for first time in my life. My parents have agreed to visiting me, but I will have a different vacation. When they come here, I will show they around my university and the city as well as. I have decided to buy them some nice gifts. It will be a big surprise for them. My parents had done a lot for me, and I think it is high time that I did something special to express their thanks.
答案
As summer vacation is soon, my classmates are trying very to get train tickets to go home. But I have made up my to spend the vacation far from home for first time in my life. My parents have agreed to me, I will have a different vacation. When they come here, I will show around my university and the city as well . I have decided to buy them some nice gifts. It will be a big surprise for them. My parents done a lot for me, and I think it is high time that I did something special to express thanks.
双基限时练(十二) Unit 4 Part Ⅲ
Ⅰ.单词拼写
1．The dog has ________(咬) a hole in my trousers.
答案 bitten
2．There were many types of ________(恐龙), some of which were very large.
答案 dinosaurs
3．The ________(事件) caused a series of events that nobody had foreseen.
答案 incident
4．The old table was covered in ________(尘土)．
答案 dust
5．The dog looks ________(凶猛的), but it is gentle really.
答案 fierce
Ⅱ.选词填空
have a good effect on， protect ... from ...， in danger of， set up， pay attention to， in peace， die out， come into being， without mercy， do harm to
1．This medicine ________ this disease.
答案 has a good effect on
2．This kind of animal is ________ in the world.
答案 dying out
3．Leave him ________； he's trying to work.
答案 in peace
4．Our teachers always ________ combining theory with practice.
答案 pay attention to
5．His father gave him some money to ________ him ________ in business.
答案 set; up
6．How many workers are ________ losing their jobs?
答案 in danger of
7．They huddled together in the corner to ________ themselves ________ the wind.
答案 protect; from
8．Dinosaurs lived on the earth tens of millions of years ago, long before humans ________.
答案 came into being
9．In the past farmers in Africa hunted wild elephants ________.
答案 without mercy
10．Nuclear power will ________ our health and safety if it is not used properly.
答案 do harm to
Ⅲ.用所给词的适当形式填空
1．No matter how ________ (power) the enemy seems, we must fight against them to the end.
答案 powerful
2．I tried to call him, but without ________ (succeed)．
答案 success
3．She felt very lonely after the ________ (lose) of her husband.
答案 loss
4．Fruit juice can be ________ (harm) to children's teeth.
答案 harmful
5．My father gives________ (protect) against the dog.
答案 protection
6．The Teachers' Day is a special day for the ________ (appreciate) of teachers.
答案 appreciation
7．Nowadays college students' ________ (employ) difficulty has become a major social problem.
答案 employment
8．Now a new factory ________ (build) near my village. The trees ________ (cut) down and the ground has been flattened.
答案 is being built; have been cut
Ⅳ.阅读理解
New research shows sheep are clever
People often make jokes about how dull sheep are, but new research shows they may be cleverer than we think. Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents (啮齿动物). Tests found that the sheep can map the area they live in, and some may even be able to plan ahead.
Young fish prefer noisy neighbours
A new study has shown that young fish like to live on reefs with noisy neighbours! Researchers from the universities of Auckland and Bristol found that young fish looking for a home choose areas where other noisy fish live. The scientists produced all kinds of sounds which had been recorded in different natural environments. The young fish seemed to prefer the sounds of natural reefs, complete with noisy animals! The scientists compared the choice to a music fan wandering around at a music festival, choosing to set up a tent closest to the music they like best!
Butterflies are disappearing
A new study has shown that 17 species (物种) of butterfly found in Europe have dropped by 70% in the last 20 years. The information collected from 3,000 sites across 15 countries shows it may be caused by the loss (减少) of grasslands covered with flowers. You can encourage butterflies to come into your garden by planting flowers.
1．What is the passage mainly about?
A. Some new studies about animals.
B. People's wrong ideas about animals.
C. Why the number of animals has dropped.
D. The importance of protecting animals.
答案与解析 A 这篇文章讲了对羊、鱼和蝴蝶三种动物的新发现。A项正确。
2．According to the first paragraph, we may infer that sheep ________.
A. are less clever than rodents
B. can find their home
C. can read maps
D. are good planners
答案与解析 B 从第一段最后一句中“the sheep can map the area they live in”可知，绵羊可以对自己生活的地域制图，更不用说找到回家的路了。B项正确。
3．When young fish are looking for a home, they like to ________.
A. live in a noisy environment
B. live in areas close to their parents
C. choose the reefs which are quiet
D. choose other kinds of fish as neighbors
答案与解析 A 从Young fish prefer noisy neighbours标题以及第二段内容都可看出，A项正确。
4．Which seems to have to do with the number of butterflies?
A. The species of grass in grasslands.
B. The species of trees in grasslands.
C. The number of flowers in grasslands.
D. The number of animals in grasslands.
答案与解析 C 从文章最后两句话可知，蝴蝶的减少和草地上的花减少有关。C项正确。
5．In which part of a newspaper can we most probably read the passage?
A. Geography. B. Culture.
C. Travel. D. Nature.
答案与解析 D 文章讲了三种动物的新发现，放在Nature“自然”专栏再合适不过。D项正确。
Ⅴ.阅读理解七选五
Say goodbye to your shyness
There is nothing wrong with being shy. __1__ If you want to be more comfortable talking to people, you can do it. Here is how.
Start small
At home, practice smiling and saying hi while looking at yourself in the mirror. __2__ Try to look them in the eye, too. Once that becomes a habit, try doing the same with kids you don't know as well.
Questions are most important
Once you are used to smiling and saying hi, it's time to start a conversation! __3__ What's your favourite movie? Why did you choose that book for your report? Just be careful not to ask questions that might be harmful. If you are feeling unsure (不确定的) about a question, ask yourself if you'd feel bad if someone asked you that same question.
__4__
When you are shy, it's easy to worry about what others think of you. In fact, that's just a thought inside your head, and nobody is watching your every move. So you can change it.
Choose face-to-face time
Many shy girls say it's easier for them to talk to people online. However, using technology to feel safer may make it harder for you to overcome (战胜) your shyness. __5__ And put in some face-to-face time with the people in your life.
A. Conversation starters
B. Change your thinking
C. Many happy, successful people are shy.
D. Most people enjoy talking about themselves.
E. Then try this at school with kids you know well.
F. Ask a question or two about a person's interests.
G. Now put down your phone and step away from the computer.
答案 1.C 2.E 3.F 4.B 5.G
Ⅵ.语法填空
I gain a lot of rewarding experiences from some social activities. Our local Community Youth Club is a very popular organization with young people in my town. I have been a member for four years now and I've taken part in a lot of interesting projects, __1__ include fun activities such as holiday camps and discos. We have organized sports competitions and we have even made a video.
But it isn't all just fun, we have also started doing social work to help people in our neighborhood. We __2__ (organize) activities for small children during the holidays. We have also formed a special support group to help young people stop __3__ (smoke)．
We are particularly proud of the most recent group we have created. It organizes regular visits __4__ the local old people's home. My class spent an afternoon at a home and everyone found the visit very rewarding. The old people there were __5__ (talk) and they told us their personal stories __6__ (cheer). During our visit, the home was filled with __7__ (laugh). But we realized that life wasn't always easy. Some of them were in poor health and were very __8__ (happy)．
Many young people like me do not live with our grandparents and we have little contact with old people. As a result, many young people don't know __9__ they are like. After this visit, my friends and I decided that we should do __10__ to help improve the quality of their lives.
答案与解析
1．which 这是一个非限制性定语从句，先行词 projects，指物，在设空后的从句中作主语，故用关系代词which引导非限制性定语从句。
2．have organized 设空处所填词在句中作谓语，又根据句中时间状语during the holidays可知organize表从过去发生到现在的动作，应用现在完成时态，填have organized。
3．smoking 根据语境可知该空表“停止抽烟”应用动名词作stop的宾语。
4．to visit to ... “对……的拜访”。
5．talkative 设空前是系动词were，故设空处应填形容词作表语。talk的形容词是talkative“健谈的”。
6．cheerfully 设空处所填词在句中作状语修饰谓语told，应用副词形式，故填cheerfully“开心地”。
7．laughter 设空前是介词with，故设空处应填名词。laugh的名词形式是laughter。
8．unhappy 根据语境“他们中有些人身体不好而且不快乐”可知该空填所给词的反义词unhappy。
9．what 设空处所填词引导宾语从句，且在从句中作宾语，故用what引导宾语从句。
10．something 根据语境“我认为我们应该做些事情以提高他们的生活质量”可知该空填代词something。
