2021高中英语课时作业 Unit4 新人教版必修2

课时作业13
Ⅰ.Fast­reading
1．Match the following paragraphs with their main ideas.
①Para.1A．What we can get from wildlife protection
②Para.2 B．Why we need wildlife protection
③Paras.3&4 C．A good example of wildlife protection
2．What does the passage tell us?
A．It is about some protection of wildlife.
B．It is about a journey of a flying chair.
C．It is about Daisy's wonderful experience with some animals.
D．It is about a flying carpet's story.
答案
1．①B②C③A 2.C
Ⅱ.Careful­reading
Read the text carefully and choose the best answer.
1．Why did elephants use to be an endangered species in Zimbabwe?
A．Tourists hunted too many elephants.
B．Farmers hunted them without mercy.
C．The government encouraged farmers to hunt them.
D．Their living environment was seriously polluted.
2．What can be inferred fr om the elephant's words “Have you come to take my photo”？
A．It thinks itself a beautiful animal.
B．Elephants are friendly to human beings.
C．Money from tourists went to the large tour companies.
D．Now many more tourists come to take its photos rather than hunt it.
3．Antelopes in Tibet become endangered because ________.
A．they are killed by other animals for food
B．the environment is badly polluted
C．people kill them to use their fur
D．their food chain (食物链) is cut off
4．It can be learned from the text that ________.
A．the Zimbabwe government did a good job in saving the elephants
B．the rainforest produces drugs that are good for millipede insects
C．the farmers also got some money from tourists after the WWF helped
D．mosquitoes help protect monkeys from millipede insects
5．It can be inferred from the text that next Daisy would ________.
A．go and buy a flying carpet
B．work with WWF to help wildlife
C．laugh over what she had experienced
D．cry because she could not make her new drug
答案
1．B 2.D 3.C 4.A 5.B
Ⅲ.Summary
One day a girl called Daisy dreamed a strange dream. She __1__ (fly) to Tibet in a flying carpet and talked with an antelope. The sad antelope told her that they __2__ (hunt) because their fur can be used to make sweaters for people __3__ her. In several years they may all __4__ (go). Later, Daisy was taken to Zimbabwe where she talked with an elephant and learned __5__ (happy) that the farmers there no longer hunted then. That's __6__ the government decided to help and allowed the tour companies to bring __7__ (tour) to the area to take photos or to hunt. And they set the number of __8__ (animal) to be hunted. As a result, farmers made a lot of money. At last, Daisy arrived at a thick rainforest where a monkey told her that it had found a millipede insect and rubbed it over __9__ (it) body to prevent mosquitoes. The monkey also told her, “No rainforest, no animals, no drugs.” __10__ it was only a dream, Daisy had learned so much.
答案
1．flew 2.were hunted 3.like 4.be gone 5.happily
6．because 7.tourists 8.animals 9.its
10．Though/Although
阅读理解
A
George Watford works at the American Society for the Prevention of Cruelty to Animals (ASPCA)in New York City. He gets some unusual phone calls. One day, he got a call about a mountain lion living in a small building. “We didn't believe it，” Watford said. “But when we went out there, sure enough, there was a mountain lion sitting at the front window looking out at us.” The big cat's owner knew that his neighbors were unhappy about the animal. He didn't try to stop us taking it away.
In one year，the ASPCA took in 9,459 different animals, not counting cats and dogs. That number includes a lot of rabbits and monkeys, but the ASPCA has also taken many other exotic (外来的) pets from people's homes. These animals can't be set free into the wild because they wouldn't survive. The ASPCA tries to find homes for them in zoos or special areas for animals.
It's against the law to sell wild animals in New York City. Many buildings don't even allow dogs and cats, not to mention more exotic animals. Still, the ASPCA takes away most of the exotic animals not because of complaints (怨言)，but because the pet's owner needs help. A lovely baby lion or bear will finally grow up to be dangerous. “When they bite(咬人), it isn't because they hate you. It's because they' re wild animals，”said exotic animal expert Kathi Travers.
Travers is quick to give speeches against raising wild animals as pets. Too often people think that caring for a wild animal is the same as caring for a dog or a cat. “To love an animal is not enough，” Travers said. “There has to be respect(尊重)，and respect is not taking an animal, sticking it in a little cage, and expecting the animal to be happy.”
1．When he got the call，Watford felt ________.
A．excited B．surprised
C．fearful D．angry
2．When it finds an exotic animal in the city, the ASPCA ________.
A．keeps it until it grows up
B．sets it free into the wild
C．helps find it a home
D．sells it to a zoo
3．What can we infer from Paragraph 3?
A．Pets' owners can't really control a wild animal.
B．A baby wild animal behaves badly at home.
C．Wild animals have their joy and anger.
D．A wild animal often destroys a home.
4．The last paragraph is written to show that ________.
A．it takes effort to care for a wild animal
B．keeping wild animals as pets is unwise
C．wild animals are happy in big spaces
D．wild animals can be dangerous
答案与解析
本文是一篇说明文。

文章主要讲述了纽约有很多人将野生动物当宠物养。

1．B 细节理解题。

根据第一段的We didn't believe it 可知，Watford 感到很惊讶。

2．C 细节理解题。

根据第二段的The ASPCA tries to find homes for them in zoos or special areas for animals. 可知ASPCA 还要帮这些动物找一个家。

3．A 推理判断题。

根据第三段的．..but because the pet's owner needs help. A lovely baby lion or bear will finally grow up to be dangerous. 可知，将野生动物当成宠物养的人有时会受到宠物的威胁。

由此可推测，养宠物的人并不能完全驾驭或控制野生动物。

4．B 段落大意题。

该段首句为主题句，由此可知，该段主要想说明野生动物不适合当宠物养。

B
Nola is a 41­year­old northern white rhino(犀牛) that lives at the San Diego Zoo Safari Park in Escondido, California. She is one of the only four remaining northern white rhinos in the world, and the only one in the western part of the earth. The other three live in Kenya(肯尼亚)．
Rhinos have lived on earth for more than 40 million years, but they are now at the risk of dying out. Hunters illegally hunt rhinos for their horns (角), which are used for art, jewellery, and decorations. They sell the horns for thousands of dollars per pound, though it is not allowed by law. Rhino horns are also prized as a key part in traditional medicine, even though scientific tests have proven that the horns cannot cure illnesses. Experts say that every eight hours, one rhino will be hunted.
Scientists are trying to find ways to prevent rhinos from dying out. In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a programme through which researchers have collected cell samples(细胞样品) from more
than 8,000 different animal species until now, including the northern white rhino. Scientists hope that by studying the rhino cells, they will gain greater understanding of the species, and will find ways to increase its number.
Jeanne Loring works with the Frozen Zoo. Loring's research focuses on pluripotent stem cells (多能性干细胞), which are cells that can renew and become any cell type. Loring's lab at TSRI is working together with scientist Oliver Ryder of the San Diego Zoo to use pluripotent stem cells to try to increase the number of the northern white rhino. Loring said the goal is to start producing new rhinos through this method over the next couple of years.
5．What can we know about northern white rhinos?
A．They can live a very long life.
B．Their horns have been used to save lives.
C．They have become seriously endangered.
D．They mainly live in the western part of the earth.
6．What caused the decrease in the number of white rhinos?
A．Human activities.
B．Serious pollution.
C．The terrible weather.
D．The disappearance of their food.
7．What was the Frozen Zoo started for?
A．Studying the life of the animals.
B．Collecting cell samples from plants.
C．Offering tourists chances to feed animals.
D．Studying animals to help them survive.
答案与解析
本文属于说明文，介绍了目前处于濒危状况中的白犀牛，科学家们正在进行各种努力保护这种动物免于灭绝。

5．C 推理判断题。

根据第一段最后两句“She is one of the only four remaining northern white rhinos in the world, and the only one in the western part of the earth. The other three live in Kenya(肯尼亚)．”可知世界上只有四头白犀牛，这种动物正处于灭绝的危险之中。

故C项正确。

6．A 细节理解题。

根据第二段第二句“Hunters illegally hunt rhinos for their horns(角)，which are used for art, jewellery, and decor ations.”和本段最后一句“Experts say that every eight hours, one rhino will be hunted.”可知非法捕猎是
犀牛数量减少的主要原因。

7．D细节理解题。

根据第三段“In 1975, the San Diego Zoo Institute for Conservation Research started the Frozen Zoo, a programme...Scientists hope that by studying the rhino cells, they will gain greater understanding of the species, and will find ways to increase its number.”可知科学家建立the Frozen Zoo 就是为了研究这些动物的细胞样品，希望在未来能找到增加它们数量
的方法。

课时作业14
Ⅰ.单词拼写
1．The story has a happy ________ (结尾)．
2．Their dog ________ (咬) a hole in my trousers.
3．After a ________ (激烈的) battle, the enemy was forced to retreat.
4．I gasped in astonishment at the ________ (出乎意料的) news.
5．The teacher walked around ________ (检查) their work.
6．His movie of the ________ (灭绝) of dinosaurs was a great success.
7．There's too much ________ (尘土) in the room.
8．I ________ (真诚地) hope you will have a bright future.
9．Best ________ (问候) to your family.
10．The unexpected ________ (小事) left a lasting impression on me.
答案
1．ending 2.bit 3.fierce 4.unexpected 5.inspecting
6．extinction 7.dust 8.sincerely 9.regards
10．incident
Ⅱ.单句语法填空
1．This rare bird has become ________ (danger) species.
2．What's the ________ (distant) between Beijing and Shanghai?
3．He suffered a gradual ________ (lose) of memory.
4．Health is of great ________ (important) in our life.
5．He looked shocked, and then burst into ________ (laugh)．
6．For many students, great attention must be paid to ________ (improve) their handwriting.
7．Lucy has been hunting ________ a job everywhere since she graduated last month.
8．She lost her handbag, ________ (contain) lots of money, while shopping.
9．________ is certain that Mr Smith is asking for you.
10．He didn't respond ________ my question.
11．She succeeded in ________ (pass) the final examination.
12．The number of students ________ (decrease) so far.
13．Every species has its own way to protect himself from ________ (harm) by his enemies.
14．I really appreciate your ________ (give) me so much help.
15．I'm busy, so I have to employ a housekeeper ________ (look) after my children.
答案
1．endangered 2.distance 3.loss 4.importance
5．laughter 6.improving 7.for 8.containing 9.It
10．to 11.passing 12.has decreased 13.being harmed
14．giving 15.to look
Ⅲ.选词填空
2．Because of human activities, many animals are ________.
3．The old people prefer to live ________ in the countryside.
4．You must ________ your teacher in the class.
5．In order to ________ his men ________ hunger and disease, Captain Cook loaded his ship with everything necessary.
6．Why are these animals ________ of disappearing?
7．Seeing him fall down the stairs, they ________.
答案
1．in relief 2.dying out 3.in peace 4.pay attention to
5．protect; from 6.in danger 7.burst into laughter
Ⅳ.课文语法填空
Not long ago there was a girl __1__ (call) Daisy, who went to see the animals that gave fur to make her sweater __2__ the help of a flying carpet. In Tibet, she
saw an antelope with a sad face looking at her, __3__ told her that they were killed for the wool that was taken from under their __4__ (stomach). In Zimbabwe, the elephant Daisy saw said they were __5__ (danger) there. Farmers used to hunt them because they were considered __6__ (destroy) the farms. Later, the government tried to help the farmers by asking the tour companies to bring __7__ (many) tourists to the area and setting the number of animals to be hunted, which brought the farmers a lot of incomes. As __8__ result, farmers started to protect them. In the thick rainforest, Daisy saw a monkey __9__ (rub) an insect over his body to protect against mosquitoes. With all __10__ experience, Daisy had learned how to work with WWF to protect wildlife.
答案
1．called 2.with 3.who 4.stomachs 5.endangered
6．to have destroyed 7.more 8.a 9.rubbing 10.her
Ⅰ.完形填空
I am the kind of person who goes out of the way to avoid hurting turtles that are crossing the road. __1__ that, I will stop to move them out of the __2__ and save them if they are injured.
Well, one day I stopped to __3__ a turtle suffering an injury on his shell, about half of which was gone. I didn't have much __4__ for this little guy, but I took him home anyway. __5__ I am a nurse and have worked in the hospital for about 20 years, I know “sick” and I __6__“dying”. I had fallen in love with the little guy, but was in despair (绝望) because I knew his __7__ to survive were very small and there was __8__ I could do.
One morning, when I __9__ the turtle, I knew he was dying. His color had gone from normal green to __10__ grey. He would be dead within __11__. This broke my heart. I sat down with the turtle beside me, __12__ my eyes and prayed (祈褥).
I prayed something __13__ lucky would happen and bring me out of the sadness, since I knew he could not __14__. I even cried for the little guy.
When I opened my eyes again, the turtle was looking at me, standing and acting like a(n) __15__ turtle again. His color was normal! The __16__ was still there, but I knew the miracle (奇迹) was in control and would take special __17__ of this
very lucky turtle. It __18__ our hearts for that moment to show us how much it __19__ us. It is watching for those teachable moments in our life. Don't __20__ yours.
1．A.But for B．Except
C．Besides D．Instead of
2．A.water B．way
C．ground D．grass
3．A.save B．catch
C．pull D．treat
4．A.money B．sense
C．time D．hope
5．A.Although B．When
C．If D．Since
6．A.understand B．recognize
C．respect D．accept
7．A.effects B．choices
C．chances D．methods
8．A.something B．nothing
C．anything D．everything
9．A.checked B．washed
C．pressed D．held
10．A.lovely B．lonely
C．sickly D．friendly
11．A.minutes B．days
C．weeks D．years
12．A.raised B．closed
C．covered D．turned
13．A.possibly B．seemingly
C．hardly D．extremely
14．A.die B．wake
C．escape D．survive
15．A.normal B．quiet
C．active D．natural
16．A.color B．heart
C．injury D．memory
17．A.place B．control
C．care D．charge
18．A.breaks B．enters
C．opens D．watches
19．A.loves B．hates
C．thanks D．challenges
20．A.mind B．miss
C．bury D．forget
答案与解析
作者救了一只受伤的海龟，明知它快要死了，还是为它祈祷，最后真的有奇迹发生。

1．C 根据下文的I will stop to move them... 可知，前后两句是递进关系，表示“除此之外还……”，故选C。

2．B 作者不仅会避开海龟，还会把它们移出马路。

3．A 根据上文．..and save them if they are injured. 可知是救(save)了一只海龟。

4．D 根据后文的but I took him home anyway 可知，尽管作者不抱什么希望，但还是把这只海龟带回了家。

5．D 根据下文I know “sick”and...可知，前后两个分句是因果关系，故选Since 表因为。

6．B 根据上文可知，作者是一位护士且在医院工作多年，所以她能辨认乌龟是否快要死了。

7．C 根据上文可知，这只海龟快要死了，所以它生存的几率(chances)就很小。

8．B 作者感觉很绝望，因为明知道乌龟快要死了，自己却什么也做不了。

9．A 根据下文我发现海龟要死了可知，作者是去检查(check)了它。

10．C 根据后文He would be dead 可推断，是颜色变成sickly grey。

11．A 根据前文的颜色发生变化及后文and prayed(祈祷)可推断，乌龟马上要死了。

12．B 根据后文I prayed...可知，作者闭上(closed)眼睛，开始祈祷。

13．D 作者祈祷有特别幸运的事情能发生，带走自己的悲伤。

14．D 根据上文He would be dead...和下一句I even cried for the little guy. 可知，我知道它不会活下来，所以很伤心。

15．A 根据下文His color was normal! 可知，海龟居然恢复正常(normal) 了。

16．C 根据第二段提过的伤口，和下文but I knew the miracle (奇迹) was in control 可知，虽然伤口还在，但是现在奇迹发生了。

17．C 根据前文内容可知，奇迹发生在海龟的身上，并会好好眷顾这只幸运的海龟。

18．D 根据下一句It is watching for those teachable moments...可知，奇迹会关注我们，在我们需要它的时候发生在我们身边。

19．A 奇迹会在一些重要时刻关注我们以表示它是爱(loves)我们的。

20．B 奇迹一直关注着每一个人，所以我们要相信它，不要错过它。

Ⅱ.语法填空
Breakfast dishes in China __1__ (wide) differ from region to region. Therefore, it is hard __2__ (list) all the food that the Chinese eat for breakfast. Here we will introduce some __3__ (tradition ) Chinese breakfast foods. Usually these dishes __4__ (find) in snack streets every morning.
Soy milk(豆浆) is made with a blender. You can find freshly boiled soy milk in cups at most breakfast stalls. It's very convenient __5__ a take­out. In northern China, __6__ wheat is more commonly eaten, a bowl of hot and flavorful wheat noodles is __7__ popular breakfast dish. In Wuhan, hot dry noodles are eaten at breakfast by almost everyone. Lanzhou beef lamian is a popular food in China.
Now, with wheat noodle stores __8__ (spread) to other parts of China, you can have wheat noodles in nearly every city. Rice noodles are more commonly eaten in the south, especially in Guangxi and Yunnan __9__ (province). In Guilin, Guilin rice noodles are a very famous and popular cheap meal. Local people eat the dish not only for breakfast, but for lunch or dinner, It __10__ (make) with boiled rice noodles, fried peanuts or soybeans, thin pieces of different meat, and other ingredients (食材) that you can choose according to your preferences.
答案与解析
本文是一篇说明文，介绍了中国一些地区的早点。

1．widely 考查副词。

空位处于动词differ 之前，修饰谓语动词，因此用其副词形式。

2．to list 考查固定句型。

此处考查“it is＋adj.＋to do”句型，意为“做……是……的”，其中to do 为真正的主语，故填to list。

3．traditional 考查形容词。

空处修饰名词foods，因此用形容词traditional。

4．are found 考查时态和语态。

主语these dishes 与 find 是被动关系，并且整篇文章使用了一般现在时，因此要用一般现在时的被动语态。

5．for 考查介词。

be convenient for...是固定搭配，表示“对……方便”。

6．where 考查定语从句。

“__6__ wheat i s more commonly eaten”是定语从句，从句中缺少地点状语，故填where。

7．a 考查冠词。

此处表示泛指，又因popular 的发音以辅音音素开头，因此填a。

8．spreading 考查非谓语动词。

此处为with 复合结构，因spread 与宾语wheat noodle stores 是逻辑上的主谓关系，因此用现在分词作宾补。

9．provinces 考查名词复数。

该空前是Guangxi和Yunnan 两个省，因此用复数形式。

10．is made考查语态。

根据语境可知，It 和make 之间是被动关系，故用被动语态。

课时作业15
Ⅰ.单句语法填空
1．It suddenly rained when the mayor ________ (inspect) our new school last week.
2．The boy was sent to a hospital because he ________ (bite) by a dog.
3．His books never fail to attract the readers with those surprising ________ (end)．
4．A new law that protects the disabled people's right has been passed so that they can ride buses ________ free.
5．By working ________ (faith) eight hours a day you may eventually get to be boss and work twelve hours a day.
6．All of a sudden, a mouse rushed out of the hole, ________ (disappear) into the darkness.
7．Joe, don't give up now; you're improving all the time. It won't be long ________ you can speak English well.
8．According to the researchers, passive smokers ________ (harm) even more than the smokers themselves.
9．She could find no reasonable explanation for the ________ (disappear) of the money in the locked safe.
10．He was becoming angry, and was staring ________ (fierce) at me as if he was about to lose control.
答案
1．was inspecting 2.was bitten 3.endings 4.for
5．faithfully 6.disappearing 7.before
8．are (being) harmed 9.disappearance 10.fiercely
Ⅱ.短语填空
is sure to be happy forever.
2．I'm afraid you must get out of the habit, for it'll ________ your health.
3．Some reports said he had left the camp only a couple of hours earlier, but we never knew ________.
4．The company has a free long­distance telephone number ________ consumers can call with any questions they have about the products.
5．The examination was coming and the school students ________ preparing their lessons.
6．When the expression first ________， people refused to use it but gradually they began to accept it.
7．Don't be so upset. It won't be ________ your children can return to school again.
8．________ the weather forecast, there will be a heavy rain tomorrow morning.
9．In recent years, ________ wild animals have been found in the forest.
10．If too many of these rare animals are killed, their kind will ________.
答案
1．come after 2.do harm to 3.for sure 4.so that
5．were employed in 6.came into being 7.long before
8．According to 9.a number of 10.die out
Ⅲ.句型训练
1．The middle school students should learn how to protect themselves __________________ unexpectedly.(harm)
中学生应学会如何保护自己免遭意外伤害。

2．He was very excited, and it was long ________________.(calm)
他很激动，心情久久不能平静。

3．The lady is looking after the children __________________ in the factory during the daytime.(employ)
这位女士正在照看孩子，这些孩子的父母们白天在工厂里工作。

4．Lucy was having a holiday with her friends in a national park ____________________ on the foot by a snake.(bite)
露西正和朋友们在一个国家公园度假，这时她的脚被蛇咬了。

5．When you enter or leave a country, the customs office is the place __________________. (inspect)
当你进入或离开一个国家时，海关检查处是检查你的行李的地方。

6．We don't know when the river here ________.(come)
我们不知道这儿的这条河是何时形成的。

答案
1．from being harmed 2.before he calmed down
3．whose parents are employed 4.when she was bitten
5．where your luggage is inspected 6.came into being
Ⅰ.阅读理解
Elephants are able to differentiate between ethnicities(种族) and sexes, and can tell an adult from a child—all from the sound of a human voice.
This is according to a study in which researchers played voice recordings to wild African elephants.
The animals showed more fear when they heard the voices of adult Maasai men.
Livestock­herding Maasai people do come into co nflict with elephants, and this suggests that animals have adapted to specifically listen for and avoid them.
The study is published in Proceedings of the National Academy of Sciences.
Prof. Karen McComb and Dr Graeme Shannon from the University of Sussex led the study. They explained that in previous research they had used similar playback experiments to show that elephants could tell—from the sound of a lion's roar—whether the animal was a female or a more dangerous male.
Prof. McComb wanted to find out if the animals used their very sharp sense of hearing to identify a potential danger from humans.
The scientists recorded Maasai men, women and children saying, in their own language, “Look, look over there, a group of elephants are coming.”
They also recorded Kamba men saying this phrase.
While cattle­herding Maasai people often come across free­ranging elephants,
which can result in violent conflict, the Kamba people's more agricultural lifestyle does not generally bring them into aggressive touch with the animals.
When the team played recordings of these different voices through a hidden loudspeaker, they found that elephant family groups reacted more fearfully in response to the voice of a Maasai man, than to a Kamba man's voice.
And the adult male Maasai voices encouraged far more of these defensive reactions than the voices of women or boys.
1．An elephant can tell a man from a woman by the sense of ________.
A．touch B．sight
C．smell D．hearing
2．How did the researchers get to know the elephants' special ability of identification?
A．By observing the elephants in the zoo.
B．By playing voice recordings to them.
C．By recording the behaviours of elephants.
D．By communicating with them in a special way.
3．We can learn from the passage that elephants are especially afraid of ________.
A．Maasai men B．Maasai women
C．Kamba men D．Kamba women
4．What is the best title for the passage?
A．Elephants and human beings
B．Differences between human voices
C．Elephants recognize human voices
D．Elephants conflict with human beings
答案与解析
研究表明大象能根据人类说话的声音判断出说话者的种族和性别以及说话者是成年人还是小孩子。

1．D 细节理解题。

从文中第一段“Elephants are able to differentiate between ethnicities(种族) and sexes, and can tell an adult from a child—all from the sound of a human voice.”可知，大象通过听觉来判断人的种族和性别。

故选D。

2．B 细节理解题。

从文中第二段“This is according to a study in which researchers played voice recordings to wild African elephants.”可知，研究者是通过给野生非洲象播放录音发现其有这种能力的。

故选B。

3．A 细节理解题。

根据倒数第二段“...more fearfully in response to the voice of a Maasai man, than to a Kamba man's voice.”可知，当大象听到成年的Maasai 男人的声音时，它们就显得更加害怕。

又根据最后一段“And the adult male Maasai voices encouraged far more of these defensive reactions than the voices of woman or boys.”可知，成年的Maasai 男人的声音比妇人或男孩的声音会引发大象更多防御性的反应。

故选A。

4．C 主旨大意题。

结合全文可知，研究表明大象可以根据人类说话的声音来判别说话者的种族和性别以及说话者是成年人还是小孩，这足以说明大象能识别人的声音。

故选C。

Ⅱ.应用文写作
假如你是李华，请根据下表内容给中国野生动物保护协会CWCA(China Wildlife Conservation Association)的会长写一封建议信。

_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
_______________________________________________________
范文
Dear President，
I'm writing to give some suggestions to further protect the Tibetan antelopes. As is often reported, too many Tibetan antelopes are being hunted and killed illegally for their fur. By selling the fur, the illegal hunters can make great
profits; as a result, the number of the Tibetan antelopes is decreasing repidly from about 1,000,000 in 1990 to less than 100,000 at present.
Immediate measures must be taken to solve the present situation. First, the importance of protecting the Tibetan antelopes should be publicized through your association. Second, would you provide more money for the conservation of the Tibetan antelopes? Last but not least, I suggest that some volunteers be sent there to help protect the Tibetan antelopes.
These are my suggestions and I hope they could mean something for a better future of the Tibetan antelopes.
Looking forward to your reply.
Yours sincerely，
Li Hua
课时作业16
Ⅰ.把下面的句子改成被动语态(每空一词)
1．The government is making great efforts to improve the living conditions of the people.
→Great efforts ________ ________ ________ to improve the living conditions of the people by the government.
2．The farmers are cutting down the jungles in this area so quickly that the wild animals may lose their homes in the near future.
→The jungles in this area ________ ________ ________ ________ by the farmers so quickly that the wild animals may lose their homes in the near future.
3．People are hunting too many animals these years in some places.
→Too many animals ________ ________ ________ by people these years in some places.
4．The teacher is correcting the papers in her office.
→The papers ________ ________ ________ by the teacher in her office.
5．Our headmaster is preparing a speech now.
→A speech ________ ________ ________ by our headmaster now.
6．The family are building a new house over there.
→A new house ________ ________ ________ by the family over there.
7．The doctors are operating on his left leg.
→His left leg ________ ________ ________ ________ by the doctors.
8．The farmers are harvesting crops in the field with their faces covered with sweat.
→The crops in the field ________ ________ ________ by the farmers with their faces covered with sweat.
9．They are discussing whether they will go for a picnic tomorrow.
→Whether they will go for a picnic tomorrow ________ ________ ________ by them.
10．The government is protecting the tigers in the newly­built reserve.
→These tigers ________ ________ ________ in the newly­built reserve by the government.
答案
1．are being made 2.are being cut down
3．are being hunted 4.are being corrected
5．is being prepared 6.is being built
7．is being operated on 8.are being harvested
9．is being discussed 10.are being protected
Ⅱ.用所给词的适当形式填空
1．—Excuse me, what time is it now?
—Sorry, my watch doesn't work. It________ (repair) at the shop.
2．—Are they about to have dinner?
—Yes, it ________ (serve) in the dining room.
3．Can't you see your problem ________ (discuss)?
Have some patience, please.
4．—Do you know what Lily is doing?
—She may ________ (interview) in the office.
5．—By the way, have you moved into the new house?
—Not yet. The walls ________ (paint)．
6．This urgent problem ________ (talk) about by the managers.
7．The new generation of computers, with artificial intelligence, ________ (develop) and perfected now.。