第4部分：阅读理解（第31-45题，每题3分，共45分)
下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每题确定1个最佳选项。
第一篇Operation Migration
If you look up at the sky in the early fall in the northern part of North America, you may see groups of birds. These birds are flying south to places where they can find food and warmth for the winter. They are migrating(迁徙). The young birds usually learn to migrate from their parents. They follow their parents south, in one unusual case, however, the young birds are following something very different. These birds are young whooping cranes, and they are following an airplane!
The young whooping crane is the largest bird that is native to North America. These birds almost disappeared in the 1800s. By 1941, there were only about 20 cranes alive. In the
www.med126.com 1970s, people were worried that these creatures were in danger of disappearing completely. As a result, the United States identified whooping cranes as an endangered species that they needed to protect.
Some researchers tried to help. They began to breed whooping cranes in special parks to increase the number of birds. This plan was successful. There were a lot of new baby birds. As the birds became older, the researchers wanted to return them to nature. However, there was a problem: These young birds did not know how to migrate. They needed human help.
In 2001, some people had a creative Idea. They formed an organization called Operation Migration. This group decided to use very light airplanes, instead of birds, to lead the young whooping cranes on their first trip south. They painted each airplane to look like a whooping crane. Even the pilots wore special clothing to make them look like cranes. The cranes began to trust the airplanes, and the plan worked.
Today, planes still lead birds across approximately 1,200 miles (1,931 kilometers), from the United States-Canadian border to the Gulf of Mexico. They leave the birds at different sites. If a trip is successful, the birds can travel on their own in the future. Then, when these birds become parents, they will teach their young to migrate. The people of Operation Migration think this is the only way to maintain the whooping crane population.
Operation Migration works with several other organizations and government institutes. Together, they assist hundreds of cranes each year. However, some experts predict that soon, this won’t be necessary. Thanks to Operation Migration and its partners, the crane population will continue to migrate. Hopefully, they won’t need human help any more.
31. Whopping cranes migrate in winter to
A. raise baby whooping cranes.
B. get human help.
C. find warmth and food.
D. lay eggs.
32. Whopping cranes are native to
A. Mexico.
B. South America.
C. the Persian Gulf
D. North America.
33. Operation Migration aims to
A. lead young cranes on their first trip south.
B. teach adult cranes how to fly.
C. breed cranes in special parks.
D. transport cranes to the North.
34. The distance covered by the young whooping cranes on their trip south is
A. 1,200 miles.
B. 120 miles
C. 1,931 miles
D. 2,000 miles
35. If Operation Migration is successful, whooping cranes will
A. follow airplanes south every year.
B. learn to migrate on their own.
C. live in Canada all year round.
D. be unable to fly back.
第二篇"Lucky" Lord Lucan — Alive or Dead
On 8th November 1974 Lord Lucan, a British aristocrat, vanished. The day before, his children's nanny had been brutally murdered and his wife had been attacked too. To this day the British public are still interested in the murder case because Lucan has never been found. Now, over 30 ye
www.med126.comars later, the police have reopened the case, hoping that new DNA techniques will help solve this murder mystery.
People suspected that "Lucky", as he was called by friends, wanted to kill his wife he no longer lived with. They say that Lucan entered his old house and in the dark, killed the nanny by mistake. His estranged wife heard noises, came downstairs and was also attacked, but managed to escape. Seven months after the murder, a jury concluded that Lucan had killed the nanny.
What happened next is unclear, but there are several theories which fall into one of three categories: he may have killed himself, he could have escaped or he might have been killed. It appears that the night after the murder, "Lucky" borrowed a car and drove it, Lucan's friend Aspinall said in an interview that he thought Lucan had committed suicide by sinking his boat in the English Channel.
Another version of events says that "Lucky" left the blood-soaked car on the coast and took a ferry to France. He was met there by someone who drove him to safety in another country. However, after a time, his rescuers became worried that they would become involved in the murder too and so Lucan was killed.
A further fascinating theory was made in the book Dead Lucky by Duncan MacLaughlin, a former detective. He believes that Lucan travelled to Goa, India, where he assumed the identity of a Mr Barry Haplin. Lucan then lived in Goa till his death in 1996. In the end the claim turned out to be a case of mistaken identity. The man who died in 1996 was really Haplin, an ex-schoolteacher turned hippy. So what is the truth about "Lucky"? DNA testing has solved many murder cases, but who knows if it can close the book on this one.
36. British public are still interested in the murder case because
A. the murderer was an aristocrat.
B. the murderer's DNA has been found.
C. the murderer was a famous man.
D. the murderer has not been caught
37. it was suspected that Lucan killed the nanny because
A. she was cruel to his children.
B. she attacked his wife.
C. she stole his car
D. she was mistaken for his wife.
38. Aspinall thought Lucan killed himself
A. by sinking his boat.
B. in a car accident.
C. on the night 30 years after the murder.
D. by jumping into the English Channel.
39. According to the version in Paragraph 4, Lucan
A. had escaped but was killed later
B. was involved in a murder in France.
C. was caught in another country.
D. met his partners on a ferry.
40. The word "assumed" in the last paragraph means
A. disclosed.
B. set up.
C. took on.
D. changed.
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