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It is possible that the weather of the world may be changing. Some scientists imagine that this could even mean the beginning of another ice age. The effects of such a change in weather on human population of the world would be frightening.
Recent research suggests that the warming trend(倾向)of the past hundred years or so may be coming to an end. During the past ten years, scientists tell us that the temperature of the world has dropped a little. This would have effects on wind and rain in the weather picture.
Scientists believe clouds may be an important factor (因素) in changing the amount of heat on the earth. Another possibility is that man’s agriculture and industry ways may affect the natural weather.

The temperature of the world in the past ten years has dropped a little （　）
A. because wind and rain changed the weather
B. , which would have effects on wind and rain
C. because wind and rain did not change the weather
D. , which would not have effects on wind and rain

[单项选择]

It is possible that the weather of the world may be changing. Some scientists imagine that this could even mean the beginning of another ice age. The effects of such a change in weather on human population of the world would be frightening.
Recent research suggests that the warming trend(倾向)of the past hundred years or so may be coming to an end. During the past ten years, scientists tell us that the temperature of the world has dropped a little. This would have effects on wind and rain in the weather picture.
Scientists believe clouds may be an important factor (因素) in changing the amount of heat on the earth. Another possibility is that man’s agriculture and industry ways may affect the natural weather.

The weather of the world seems to be getting（　）
A. hotter
B. colder
C. warmer
D. freezing

[单项选择]A. The weather forecast. B. The cancellation of playing tennis.
C. The hot weather. D. The tennis being played.

[简答题]______(很多科幻故事都有一个共同的主题)that the world may one day be taken over by insects．

[简答题]In certain remote corners of the Old World you may sometimes stumble upon little places which seem to have been forgotten among the general tumult and which have stayed still while all around them moves. The inhabitants are mostly very ignorant and very poor; they take no part in affairs of government, and often governments oppress them. But yet they seem serene and often have a jovial disposition.
In America I have seen the freest and best educated of men in circumstances the happiest to be found in the world; yet it seemed to me that a cloud habitably hung on their brow, and they seemed serious and almost sad even in their pleasures.
The chief reason for this is that the former do not give a moment’s thought to the ills they endure. whereas the latter never stop thinking of the good things they have not got.
It is odd to watch with what feverish ardor the Americans pursue prosperity and how they are ever tormented by the shadowy suspicion that they may not have c

[单项选择]A. The possible variables.
B. The possible constants.
C. Patterns of change and development.
D. The guaranteed forms of things.

[简答题]It may be possible for large scale change to occur without leaders with magnetic personalities, but the pace of change would be slow, the vision uncertain, and the committee meetings endless.

[单项选择]Woman: If the weather is this hot tomorrow, we may as well give up the idea of playing tennis in the afternoon.
Man: Oh, I don’t think it’ll last long. The weather forecast says it will cloud over by mid-afternoon.
Question: What does the man mean（）。
A. Weather forecasts are not reliable.
B. They’d better change their mind.
C. The tennis game won’t last long.
D. They shouldn’t change their plan.

[填空题]Around the world there may be as many as a million and a half traffic fatalities every year.

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