If we had become aware of danger earlier, we _____ to stay in that temporary shelter.

A．wouldn’t choose                      B．wouldn’t be choosing

C．wouldn’t have been choosing             D．wouldn’t have chosen

Three minutes earlier ____ we could have caught the early train to Philadelphia.

Three minutes earlier _______ we could have caught the early train to Philadelphia.

A. or B. but?

C. and D. so?

.

第二部分：阅读理解（共两节，满分50分）

第一节（共20小题，每小题2分，满分40分）阅读下列短文，从每题所给的四个选项A、B、C、D中选出最佳选项。

Judging from recent surveys, most experts in sleep behaviour agree that there is virtually an epidemic （流行病）of sleepiness in the nation. “I can’t think of a single study that hasn’t found Americans getting less sleep than they ought to,” says Dr. David. Even people who think they are sleeping enough would probably be better off with more rest.

The beginning of our sleep-deficit crises can be traced back to the invention of the light bulb a century ago. From diary entries and our personal accounts from the 18th and 19th centuries, sleep scientists have reached the conclusion that the average person used to sleep about 9. 5 hours a night. “The best sleep habits once were forced on us, when we had nothing to do in the evening down on the farm, and it was dark.” By the 1950s and 1960s, the sleep schedule had been reduced dramatically, to between 7. 5 and 8 hours, and most people had to wake to an alarm clock. “People cheat in their sleep, and they don’t even realize they’re doing it,” says Dr. David. “They think they’re okey because they can get by on 6. 5 hours, when they really need 7. 5, 8 or even more to feel ideally energetic. ”

Perhaps the most merciless robber of sleep, researches say, is the complexity of the day. Whenever pressures from work, family, friends and community increase, many people consider sleep the least expensive item on their programme. “In our society, you’re considered dynamic if you say you need only 5. 5 hours’ sleep. If you’ve got to get 8. 5 hours, people think you lack drive and ambition. ”

To determine the consequences of sleep-deficit, researchers have put subjects through a set of psychological and performance tests requiting them, for instance, to add columns of numbers or recall a passage read to them only minutes earlier. “We’ve found that if you’re in sleep deficit, performance suffers,” says Dr. David. “Short-term memory is weakened, as are abilities to make decisions and to concentrate. ”

41. What is the main topic of the passage?

A. Research on the causes and consequences of sleep-deficit.

B. The epidemic of sleepiness in the modern times.

C. The history of people’s sleeping patterns.

D. The minimum of our sleeping hours.

42. Which of the following is Dr. David’s opinion?

A. People who think they are sleeping enough are better off than those who don't.

B. Some people can remain energetic with only 6. 5 hours’ sleep a night.

C. If they get 8. 5 hours’ sleep, people will be full of drive and ambition.

D. People’s metal power suffers if they are lacking in sleep.

43. People in the 18th and 19th centuries slept about 9. 5 hours a night because _______.

A. they were forced by their parents to do so

B. they knew what was best for their health

C. they had no electricity

D. they were not so dynamic and ambitious as modern people are

44. What does the word “subjects” in paragraph 4 mean?

A. Persons or things being discussed or described.

B. Branches of knowledge studied in a school.

C. Persons or things being treated in a certain way or being experimented on.

D. Any member of a state apart from the the supreme ruler.

第四部分：任务型阅读（每小题1分，满分10分）

请认真阅读下面短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。

注意：每空格1个单词。

At the age of twelve years, the human body is at its most vigorous. It has yet to reach its full size and strength, and its owner his or her full intelligence; but at this age the likelihood of death is least. Earlier we were infants and young children, and consequently more vulnerable; later, we shall undergo a progressive loss of our vigour and resistance which, though not felt at first, will finally become so sudden and quick that we can live no longer, however well we look after ourselves, and however well society, and our doctors, look after us. This decline in vigour with the passing of time is called ageing. It is one of the most unpleasant discoveries which we all make that we must decline in this way, that if we escape wars, accidents and diseases we shall eventually die of old age, and that this happens at a rate which differs little from person to person, so that there are heavy odds in favour of our dying between the ages of sixty-five and eighty. Some of us will die sooner, a few will live longer-- on into a ninth or tenth decade. But the chances are against it, and there is a virtual limit on how long we can hope to remain alive, however lucky and strong we are.

Normal people tend to forget this process unless and until they are reminded of it. We are so familiar with the fact that man ages, that people have for years assumed that the process of losing vigour with time, of becoming more likely to die the older we get, was something self-evident, like the cooling of a hot kettle or the wearing-out of a pair of shoes. They have also assumed that all animals, and probably other organisms such as trees, or even the universe itself, must in the nature of things 'wear out'. Most animals we commonly observe do in fact age as we do if given the chance to live long enough; and mechanical systems like a wound watch or the sun, do in fact run out of energy in accordance with the second law of thermodynamics (whether the whole universe does so is a matter about which there may be disagreement or uncertainty at present). But these are not similar to what happens when man ages. A run-down watch is still a watch and can be rewound. An old watch, by contrast, becomes so worn and unreliable that it eventually is not worth mending. But a watch could never repair itself, it does not consist of living parts, only of metal, which wears away by friction. We could, at one time, repair ourselves well enough, at least, to overcome all but the most instantly fatal illnesses and accidents. Between twelve and eighty years we gradually lose this power; an illness which at twelve would knock us over, at eighty can knock us out, and into our grave. If we could stay as vigorous as we are at twelve, it would take about 700 years for half of us to die, and another 700 for the survivors to be reduced by half again.