阶段评估检测(二)
Part Ⅰ Language Knowledge (45 marks)
Section A (15 marks)
Directions: For each of the following unfinished sentences there are four choices marked A, B, C and D. Choose the one that best completes the sentence.
1．They got up very early that morning ________ they wouldn't miss the first bus.
A．in case B．as if C．so that D．even though
2．Yi Siling was the first Chinese athlete ________ the gold medal in the London Olympic Games.
A．winning B．to win C．wins D．won
3．Alice said that she saw two strange people ________ in her neighbor's house at 9 o'clock yesterday, so she reported it to the police.
A．steal B．to steal C．stole D．stealing
4．Professor Williams keeps telling his students that the future ________ to the well-educated.
A．belongs B．is belonged C．is belonging D．will be belonged
5．It is reported that the family who got lost in the valley ________with the help of the local police recently.
A．was found B．had been found
C．have been found D．has been found
6．This new model of car is so expensive that it is ________ the reach of those with average incomes.
A．over B．within C．beyond D．below
7．He agrees with us. In other words, his opinion is ________ to ours.
A．similar B．common C．popular D．the same
8．Disney, ________money was now no problem, started a new film company.
A．for whose B．for whom C．for which D．to which
9．—Jenny took the 8：00 bus to Guangzhou this morning.
—Really? She ________ the 9：00 train. It's much more comfortable and safer to travel by train.
A．could have taken B．should take
C．must have taken D．can take
10．He realized that she was crying ________ what he said.
A．because B．because of C．as D．since
11．Jennifer is always absent from school, ________ I suppose is why she is criticized now and then.
A．which B．who C．that D．what
12．—What can I do for you, sir?
—I'd like to see the manager ________ of sales department.
A．in the charge B．under charge C．in charge D．is in charge
13．Put everything ________to you in your bag, not others.
A．belongs B．belonged C．belonging D．to belong
14．If you stand on ________ high floor, you'll get ________ better view.
A．/; the B．/; a C．the; a D．the; the
15．Great attention must be paid ________ welfare, especially in the poor area.
A．develop B．to develop C．to developing D．developing
Section B (18 marks)
Directions: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.
I've heard the phrase “all bosses are mean” several times throughout my life. But that is not how I__16__about my present boss. My mother and I work in the__17__factory together. She's been there for nearly twenty years, but I've been there for only__18__than ten years. It was in 1990, my senior year in high school, that I realized what kind of man this boss was.
My grandmother, my mom's mother, __19__away on the morning of February 19, 1990. Of course, everyone in the family__20__a day's work or school that day. My mother was unable to work that week. Before the following Monday, my__21__boss, called and gave his condolences (慰唁), and told my mother not to worry about her work. She could take as many weeks off as she needed. He would still__22__her and her job would be remaining.He sent flowers and he also had some__23__sent to our home.
I spent some time in looking more closely at what this man did. That year he paid her for five weeks of__24__time, three weeks for my grandmother's death, and two weeks for normal__25__. He was kind to send flowers and food. From this I grow a deep__26__for this man. He did the extra that was not asked of him, nor expected. So when I hear that__27__“all bosses are mean”， I just smile and say，“Not my boss.”
16．A.feel B．complain C．suppose D．recall
17．A.different B．modern C．same D．private
18．A.less B．more C．later D．earlier
19．A.put B．turned C．passed D．died
20．A.missed B．avoided C．started D．finished
21．A.mean B．former C．present D．gentle
22．A.pay B．accept C．allow D．employ
23．A.projects B．employees C．salaries D．food
24．A.personal B．terrible C．pleasant D．worrying
25．A.work B．travel C．amusement D．vacation
26．A.concern B．attention C．respect D．praise
27．A.text B．phrase C．situation D．word
Section C(12 marks)
Directions: Complete the following passage by filling in each blank with one word that best fits the context.
A teacher let her class play a game. The teacher told each child to bring a bag with a few potatoes in it. Each potato will be given a name of a person the child hates, 28.________ the number of potatoes a child will put into his or her bag will depend 29.________ the number of people the child hates.
Some children had two potatoes; some had three and 30.________ had up to five potatoes. The teacher then told the children to carry the bag wherever they go for a week.
31．________ the days went by, the children started to complain because of the unpleasant smell coming from the rotten potatoes. After a week, the teacher asked, “ 32.________ did you feel？” The children started complaining about the trouble they had in carrying the potatoes.
Then the teacher said, “This is 33.________ situation when you carry your hate for somebody inside your heart. The smell of hate will pollute your heart and you'll carry 34.________ with you wherever you go. If you cannot bear the smell of rotten potatoes for just one week, can you imagine 35.________ it is like to have the smell of hate in your heart for your lifetime？”
Part Ⅱ Reading Comprehension (30 marks)
Directions: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage.
A
When we see other people being given presents, we tend to want one ourselves. Birthdays allow people in most cultures a chance to receive gifts on their own special day once a year. At Christmas, on the other hand, some people who are not given presents may feel left out. It is a tricky issue for religious minorities in most Christian countries.
The Netherlands (Holland) provides an interesting example of how people can respond to others' luck. In a weekly lottery, about a third of the Dutch population waits for the one-in-430，000 draw of a winning postcode. All ticket-owners in the lucky area get a cash payment of about 10，000 ($13，000) and one of them receives a car as well. It is like a local Christmas: everyone in the postcode knows that some neighbors have won. A recent study found that the neighbors of winners are more likely to buy a new car within the next six months and might decorate the outside of their house, even though they did not buy a ticket.
Few children get Christmas presents which are worth 10，000 in value. Nevertheless, for a kid, Christmas is equal in value to a Wall Street trader's bonus. The competitive attitude can be almost as strong and obvious. American Jews are a case in point. The festival of lights, Hanukkah, is a relatively minor Jewish holiday, celebrated not long before Christmas. It is sometimes called “Jewish Christmas”， and the holiday season in families with a mixed religious background has been named “Chrismukkah”. Ran Abramitzky, Liran Einav and Oren Righi of Stanford University studied the behavior of Jewish parents in America and found that families with children under 18 celebrate Hanukkah more seriously. The fewer Jews there are in a given county, the more they spend on holiday-related products.
Austrians and Germans with a Turkish background are another example. There is no Muslim holiday close to Christmas. The competitive pressure has instead led some to behave like atheists (people who believe God doesn't exist): they simply celebrate Christmas without its religious meaning. According to EthnOpinion, a Vienna-based market-research institute, almost one in seven Austrians with a Turkish background observes the holiday. “The overall approach is very practical，” says a German-Turkish author and psychologist, Deniz Baspinar. “Even the Christmas tree in Turkish homes is no longer the ironic statement it once was.”
36．It can be inferred from the passage that ________．
A．there are a total of 430，000 postcodes in Holland
B．the Dutch postcode lottery is held every other week
C．about 1/2 of the Dutch buy postcode lottery tickets
D．the biggest lottery winner gets a car instead of cash
37．The author takes the Dutch postcode lottery as an example to ________．
A．illustrate what competitive pressure is
B．appeal to readers to join postcode lottery
C．show the right way to respond to others' luck
D．tell readers every day in Holland is Christmas
38．What can we know about American Jews?
A．They call Christmas Hanukkah.
B．They celebrate the festival of lights.
C．They have mixed religious backgrounds.
D．They spend little on products on holidays.
39．Some Austrians with a Turkish background celebrate Christmas because ________．
A．they want to make Christmas Turkish
B．they want to mix with the local people
C．they feel left out since they are not religious
D．they feel bad when others are all celebrating
40．How does the author develop the passage?
A．By giving examples. B．By quoting wise words.
C．By making comparisons. D．By making assumptions.
B
I still clearly remember that day. I was on the side of the road for close to four hours with my big Jeep. I put signs in the windows that said, “NEED A JACK(千斤顶)．”
Right as I was about to give up, a truck stopped and a man got off. He sized up the situation and went back to take a jack. After about two hours, we finished the job with sweats. We were both dirty. His wife produced a large water jug for us to wash our hands in.
I tried to put $20 in the man's hand, but he wouldn't take it, so instead I went up and gave it to his wife as quietly as I could. I thanked them up one side and down the other. I asked the little girl, their daughter, where they lived, thinking maybe I'd send them a gift. She said they lived in Mexico. They were in Oregon now so Mommy and Daddy could pick cherries for the next few weeks. After that, they were going to pick peaches, and then go back home.
After I said my goodbyes and started walking back to the Jeep, the girl called out and asked if I'd had lunch. When I told her no, she ran up and handed me a tamale(玉米粽子). I thanked them again and walked back to my car. When I opened the tamale, what did I find inside? My $20 bill! I ran to the van and the guy rolled down his window. He saw the $20 in my hand, started shaking his head smiling, and with what looked like great concentration said in English: “Today you, tomorrow me.” Then he rolled up his window and drove away, with his daughter waving to me from the back.
This family, working on a seasonal basis where time is money, took a couple of hours to help a stranger while others passed by quietly.
Since then I've helped many people like the Mexican family. I didn't accept money. But every time I was able to help, I felt as if I was putting something in the bank.
41．From the passage we know that ________．
A．the Mexican man couldn't speak English
B．the author's car broke down on the road
C．the Mexican family came to Oregon for a visit
D．$20 was a small amount for the Mexican family
42．Why did the author give the money quietly to the man's wife?
A．Because the man had refused to accept it.
B．Because the man's wife needn't wash her hands.
C．Because the author thought the Mexican family was poor.
D．Because the author thought the man's wife would take it.
43．The Mexican man helped the author because he tended to think that ________．
A．it was completely wrong for others to pass by quietly
B．it was quite easy to help the author mend the Jeep
C．it was possible that everyone might get into trouble
D．the author was a polite stranger and deserved the help
44．Which of the following is TRUE about the author?
A．He hated those who didn't offer help.
B．He would send a present to the family soon.
C．He wondered why they didn't take the money.
D．He considered helping others as saving money in the bank.
45．What can we infer from the passage?
A．The Mexican family lived a richer life than the author.
B．The Mexican family did seasonal work in Oregon each year.
C．The author was inspired to help others by the Mexican family.
D．What made the writer moved was the tamale given by the girl.
C
Running like the wind, roaring like thunder, tigers have long been feared and respected as a king of the animal world. But last week a report said that there are no more than 30 wild tigers left in South China.
This was the conclusion of a team of scientists from China's State Forestry Administration and the World Nature Fund.
The South China tiger, also known as the Chinese tiger, is native to southern China. In the 1950's, there were over 4，000 tigers found in mountain forests in the country. But due to the destruction of their natural habitat and uncontrolled hunting, it has been pushed on to the list of the world's top ten most endangered species.
Sixty-six of the big cats can be found in the cages of a dozen zoos around China. But they are nothing like their wild cousins. They have lost their natural skills such as hunting and killing. If they were set free they could not look after themselves.
“Breeding has damaged the quality of the species，” said Pei Enle, deputy director of the Shanghai Zoo.
To reintroduce the species into the wild, the country started a programme to send five to ten young tigers to South Africa. Four of them have already arrived. Progress has been made as two elder tigers have recovered some of their instincts(本能)and can hunt wild animals by themselves at the African base.
“South Africans are very experienced in reintroducing big animals to the wild. The country has very good natural conditions for the tigers to learn in，” said Lu Jun, office director of the National Wildlife Research and Development Center. “We tried in Fujian Province, but it was not successful as there was not a complete eco-chain(生物链) and there was a lack of space.”The tigers should return to China when the reservations in Fujian are ready.
46．What is the main reason for the South China tiger becoming one of the world's top ten most endangered species?
A．Because it has lost its natural instincts.
B．Because there is not a complete eco-chain.
C．Because there is no space for it.
D．Because uncontrolled hunting has destroyed its natural living conditions.
47．How is the programme of sending several tigers to South Africa getting on?
A．Its effect still remains to be seen.
B．Two tigers can already compete with their wild cousins.
C．Some of the tigers are already on the road to recovering their natural skills.
D．The tigers should be able to recover their instincts completely.
48．By saying “But they are nothing like their wild cousins”， the writer means that ________．
A．they are no longer feared by other wild animals
B．they don't know how to hunt or kill
C．a complete change has resulted in the species because of breeding
D．to reintroduce them into the wild has become an urgent task
49．What is the purpose of sending young tigers to South Africa?
A．To help the tigers recover their ability to live in the wild.
B．To provide them with a better environment.
C．To get the tigers to go on a tour.
D．To find a complete eco-chain for them.
50．Which one is not the reason for South Africa being chosen as the training place?
A．Because the tigers can hunt wild animals by themselves at the African base.
B．Because South Africans are skilled at dealing with the tigers.
C．Because there is a complete eco-chain and enough space there.
D．Because the country has good natural conditions for the tigers to learn in.
Part Ⅲ Writing (45 marks)
Section A (10 marks)
Directions：Read the following passage. Fill in the numbered blanks by using the information from the passage.
Write NO MORE THAN THREE WORDS for each answer.
Happy birthday! Do birthdays really make people happy? Of course they do.Birthdays celebrate the day when we were born.Besides, that extra candle on the cake suggests another year of growth and maturity—or so we hope.We all like to imagine that we are getting wiser and not just older.Most of us enjoy seeing the wonder of growth in others, as well.For instance, seeing our children develop and learn new things makes us feel proud.For Americans, like people in most cultures, growing up is a wonderful process.But growing old? That is a different story.
Growing old is not exactly for people in youth-oriented(以年轻人为中心)American culture.Most Americans like to look young, act young and feel young.As the old saying goes, “You're young as you feel.” Older people joke about how many years young they are, rather than how many years old.People in some countries value the aged as a source of experience and wisdom.But Americans seem to favor those that are young, or at least “young at heart”．
Many older Americans find the “golden years” to be anything but golden.Economically, “senior citizens” often struggle just to get by.Retirement at the age of 65 brings a sharp decrease in personal income.Social security benefits usually cannot make up the difference.Older people may suffer from poor nutrition, medical care, and housing.Some even experience age discrimination.American sociologist(社会学家) Pat Moore once dressed up like an older person and wandered around city streets.She was often treated rudely—even cheated and robbed.However, when dressed as a young person, she received much more respect.
Unfortunately, the elderly population in America is increasing fast.Why? People are living longer.Fewer babies are being born.And middle-aged “baby boomers” are rapidly entering the group of the elderly.America may soon be a place where wrinkles(皱纹)are “in”．Marketing experts are ready noticing this growing group of consumers.
Title: Different Opinions about 51.________
Items
Descriptions/Details
General idea
Growing older, being mature and wiser
52.________
53.________
A wonderful process: children 54.________ new things, enjoying another birthday party
About the old
Being respected by the young
Being valued as a source of 55.________
Living happily in the golden years
Negative
attitudes
Never being young again
Feeling lonely in a youth-oriented culture
Economical 56.________： personal income 57.________
Health problem: suffering from 58.________ and medical care
Housing problem: poor and simple
59.________ problem: the old being ill-treated—experiencing age discrimination, being cheated and even robbed
Solution
Improving 60.________ benefits
The young caring for and respecting the old
Section B (10 marks)
Directions: Read the following passage. Answer the questions according to the information given in the passage.
How we look and how we appear to others probably worry us more when we are in our teens or early twenties than at any other time in our life.Few of us are content to accept ourselves as we are, and few are brave enough to ignore the trends of fashion.
Most fashion magazines or TV advertisements try to persuade us that we should dress in a certain way or behave in a certain manner.If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment.
Changing fashion, of course, does not apply just to dress.A barber today does not cut a boy's hair in the same way as he used to, and girls do not make up in the same way as their mothers and grandmothers did.The advertisers show us the latest fashionable styles and we are constantly under pressure to follow the fashion in case our friends think we are odd or dull.
What causes fashions to change? Sometimes convenience or practical necessity or just the fancy of an influential person can establish a fashion.Take hats for example—In cold climates, early buildings were cold inside, so people wore hats indoors as well as outside.In recent times, the late President Kennedy caused a depression in the American hat industry by not wearing hats: more American men followed his example.
There is also a cyclical pattern in fashion.In the 1920s in Europe and America, short skirts became fashionable.After World War Ⅱ， they dropped to ankle length.Then they got shorter and shorter and the miniskirt was in fashion.After a few more years, skirts became longer again.
Today, society is much freer and easier than it used to be.It is no longer necessary to dress like everyone else.Within reason, you can dress as you like or do your hair the way you like instead of the way you should because it is the fashion.The popularity of jeans and the “untidy” look seems to be a reaction against the increasingly expensive fashion of the top fashion houses.
61．What do the fashion magazines or TV advertisements claim to bring us? (No more than 2 words)
________________________________________________________________________
62．Why does the writer take President Kennedy as an example? (No more than 14 words)
________________________________________________________________________
63．What does the writer try to explain by talking about short skirts? (No more than 8 words)
________________________________________________________________________
64．Why are jeans so popular according to the writer? (No more than 10 words)
________________________________________________________________________
Section C (25 marks)
Directions: Write an English composition according to the instructions given below in Chinese.
在伦敦奥运会上，中国代表团在奖牌榜上成绩斐然。请据此以学生李华的名义给某英语日报写一封信，要点如下：
1．为中国体育健儿取得的好成绩感到自豪；
2．但是另一方面，肥胖和患近视的青少年数量在不断增加，体质也在不断下降，令人担忧；
3．很多地方，人民群众可以享受的体育设施不足；
4．应同时大力发展全民体育事业，增强人民体质。
注意：1.词数不少于120，可适当增加细节。
2．开头和结尾已给出，不计入总词数。
Dear editor，
I'm proud of ________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
Yours，
Li Hua
参考答案
阶段评估检测(二)
Part Ⅰ
Section A
1．C 考查连词辨析。句意为：他们那天早上起得很早目的是不错过头班车。in case万一； as if好像； so that以便； even though即使。
2．B 考查不定式作定语。句意为：易思玲在伦敦奥运会上为中国夺得了第一枚金牌。“the first/second/third…＋名词”后面跟不定式作定语。
3．D 考查非谓语动词。see sb. doing sth. 意为“看见某人正在做某事”。
4．A 考查belong的用法。belong to意为“属于”，不能用于被动语态，也无进行时态。
5．C 考查动词的时态和主谓一致。句中的主语为the family，为一家人，是复数概念，且根据句中的recently可判断此处应该使用现在完成时态且要使用被动语态，故选C项。
6．C 考查介词。价格之高已经超过了收入不高者的能力范畴，故选C项。
7．A 考查形容词辨析。be similar to类似于。
8．B 考查定语从句。句意为：迪斯尼，对他来说，钱不是问题，他开办了一家新的电影公司。Disney是先行词，在定语从句中whom指的是Disney。
9．A 考查动词时态。句意为：——珍妮今天早上乘坐8点的公共汽车去了广州。——真的吗？她应该乘坐9点的火车。坐火车旅游更舒服、更安全。依题意可知答案。
10．B 考查介词短语。句意为：他意识到她是因为他说的话才哭的。because，as，since当“因为”讲时，都是连词，引导一个原因状语从句，而because of是介词短语，后面跟名词、代词或宾语从句。故选B项。
11．A 考查非限制性定语从句。句意为：詹妮弗总是旷课，我认为这就是她为什么常挨批评的原因了。I suppose是插入语，在定语从句中缺少主语，又因为是非限制性定语从句，先行词为Jennifer is always absent from school这件事，故选A项。
12．C 考查介词短语。句意为：——先生，你有什么事吗？——我想见销售部的当班的经理。in charge of“负责，主管”，主语用人，in the charge of“由……负责”，主语是事，又因为句中已经有谓语，后面用介词短语作定语，修饰the manager。
13．C 考查belong的用法。句意为：请把属于你的而不是别人的东西放到你的包里。这是一个祈使句，belonging to you作定语修饰everything。
14．C 考查冠词的用法。句意为：如果你站在高层，你会看得更清楚一些。第一个空the high floor表示特指，第二个空表泛指。
15．C 考查固定搭配。句意为：尤其在贫困地区，要特别注意发展福利事业。pay attention to注意，其中to为介词，后面跟名词或动名词。
Section B
16．A 联系上文中“所有的老板都是吝啬的”，再结合下文的转折，作者在这里是想说“那不是我对我目前的老板的感受”。
17．C 作者和妈妈都在同一家工厂工作，这和下文中描述的情节吻合。A项和文意不符；而B和D项也和文章的意思没有联系。
18．A 上文说明了妈妈在该厂工作的时间，所以这里也是说工作的时间，该句的意思是说“我在这个厂子工作了不到10年”。less than意为“少于；比……少”。
19．C put away收起来；turn away拒绝，转身；pass away去世；die away消失。根据文意，应选C项。
20．A miss a day's work意思是“一天没去上班”。
21．C my present boss表示“我现在的老板”，从第一段第二句可知答案。
22．A 这里仍然是老板向她说明的内容，她可以根据需要请假，并且能够带薪休假，意思是仍付给她工资。从下一段也能了解这个情况。
23．D 结合下一段的“He was kind to send flowers and food”可知此处选D。
24．A personal time指她在假期中做自己的私事，此处可以说是“私人时间”。
25．D 这里指两周正常的“假期”，而不是“工作”；其中B、C项与文意不符。
26．C 通过这些事，作者心中对老板怀有深深的敬意，故C项合乎文意。
27．B 根据文章首句的提示，可知B项为正确答案。
Section C
28．so 考查并列句。根据前后的因果关系可判断该空用so。
29．on 考查介词。depend on意为“依赖，依靠”，是固定搭配。
30．others 考查不定代词。some…，some…，others…意为“一些……一些……，另一些是……”，为常用搭配。
31．As 考查状语从句引导词。as the days went by意为“随着日子的流逝”。
32．How 考查疑问副词。根据后面的“The children started complaining about the trouble they had in carrying the potatoes”可推断老师是在问“你们感觉怎么样呢？”，故该空用how。
33．the 考查冠词。此处特指上文所描述的处境，故用定冠词the。
34．it 考查代词。该空指“the smell of hate”，故用it替代。
35．what 考查名词性从句引导词。该空引导宾语从句且在从句中作is like的表语，故用what。
Part Ⅱ
A
[文章大意] 这是一篇说明文，说明了竞争压力在庆祝圣诞节的时候的体现。
36．A 推理判断题。从第二段第二句和第三句可知，有1/3的荷兰人买邮政编码彩票，该彩票每周开一次奖，从全部43万个邮政编码中抽取一个获奖，而该邮政编码区域中所有买该彩票的人都可获现金奖，其中一人还会获得一辆汽车。
37．A 推理判断题。荷兰邮政编码彩票的获奖彩民能得到丰厚的奖金，而他们的邻居，虽然没有获奖，但是通常会在半年内买车或装修房子。这个例子是对competitive pressure的诠释。
38．B 细节理解题。美国的犹太人在圣诞节前庆祝光明节，选B。
39．D 推理判断题。从最后一段可知，这是关于competitive pressure在圣诞节的时候对人们的消费产生的影响。
40．A 篇章理解题。本文用得最多的写作方法就是举例子。举例子诠释competitive pressure，然后再举例子来印证competitive pressure在圣诞节的时候对人们的消费产生的影响。
B
[文章大意] 这是一篇记叙文。记述了作者在途中汽车抛锚，得到了墨西哥人一家的帮助，他们并不求回报，作者受到鼓舞，也不求回报去帮助需要帮助的人。
41．B 推理判断题。从第一段作者出示牌子，需要千斤顶到下文墨西哥人一家对他的帮助看，作者的车是抛锚了。
42．A 细节理解题。从文章的第四段那个司机的女儿通过给作者玉米粽子，又把那20美元给了作者看，那个司机是不愿意接受作者给的钱的。
43．C 推理判断题。从第四段这个墨西哥司机说的话Today you, tomorrow me.看出，人人都会遇到麻烦的。
44．D 细节理解题。从最后一段Since then I've helped many people like the Mexican family. I didn't accept money. But every time I was able to help, I felt as if I was putting something in the bank. 看出答案。
45．C 推理判断题。从文章最后看出作者受到墨西哥人一家的鼓舞，也帮助别人，不求回报。
C
[文章大意] 昔日号称百兽之王的华南虎，今天却陷入濒危的边缘。无奈“留学”非洲，只为重振虎门。
46．D 细节理解题。题干关键词为：the world's top ten most endangered species。第三段中的“But due to the destruction of their natural habitat and uncontrolled hunting”告诉我们华南虎成为十大濒临灭绝物种之一的原因。由此可知答案。
47．C 细节理解题。倒数第二段中的Progress has been made as two elder tigers have recovered some of their instincts and can hunt wild animals by themselves at the African base.告诉我们，在有关人员的努力下，一些喂养的老虎正在恢复它们的本能。
48．B 句意推测题。下一句话对此做了进一步的解释：They have lost their natural skills such as hunting and killing. 也就是B项所说的they don't know how to hunt or kill。
49．A 细节理解题。由倒数第二段的To reintroduce the species into the wild, the country started a programme to send five to ten young tigers to South Africa.可以看出，启动该项目就是为了让老虎获得野外生存的能力，从而把它们再放归野外。
50．A 细节理解题。用排除法。由最后一段的第一句话可知B是一个原因，由第二句话可知D项是一个原因，由倒数第二句可知C项也是一个原因，故选A。
Part Ⅲ
Section A
51．Growing Old
52．Positive attitudes
53．About the young
54．developing and learning
55．experience and wisdom
56．problem
57．decreasing sharply
58．poor nutrition
59．Social
60．social security
Section B
61．Confidence.
根据第二段的If we do, they tell us, we will be able to meet new people with confidence and deal with every situation confidently and without embarrassment.
62．To show the fancy of an influential person can establish a fashion.
答案在第四段第二句。
63．There is a cyclical pattern in fashion.
答案在第五段第一句。
64．Because it's a reaction against the increasingly expensive fashion.
答案在最后一段最后一句。
Section C
One possible version：
Dear_editor，
I'm_proud_of what China has achieved at the London Olympic Games. Chinese athletes won many medals at the sports event. Obviously, China is a leading country in sports in the world. But on the other hand, we still have many problems. The number of overweight and short-sighted teenagers is increasingly growing. Teenagers seem to have more health problems than their older generation. In many cities, people have no easy access to sports facilities. So I think it's the government's responsibility to provide more and better sports services for its people and to encourage more and more people to take various forms of exercise to enjoy a healthy lifestyle.
Yours，
Li_Hua
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