问题 选择题

由于水的比热容比沙石或干泥土的比热容大,所以在沿海地区陆地表面的气温比海面的气温昼夜变化显著。因此 (     )

A.白天的海风多是从陆地吹向海面,夜晚的海风多是从海面吹向陆地

B.白天的海风多是从海面吹向陆地,夜晚的海风多是从陆地吹向海面

C.白天和夜晚的海风多是从陆地吹向海面

D.白天和夜晚的海风多是从海面吹向陆地

答案

答案:B

题目分析:水比大地的比热容大,水吸热温度升高较慢,放热温度降低较慢。白天,在太阳照射下,水升温较慢,水面上的空气温度比陆地上的空气温度低,空气的密度大,气压也较大,反之陆地上的气压较小,空气形成对流从气压高的地方向气压低的方向流动,风从海面吹向陆地。晚上风从陆地吹向海面。

阅读理解

     Many people who work in London prefer to live outside it , and to go into their offices or schools

every day by train, car or bus, even though this means they have to get up early in the morning and

reach home late in the evening.

     One advantage of living outside London is that houses are cheaper. Even a small flat in London

without a garden costs quite a lot to rent. With the same money, one can get a little house in the country

with a garden of one's own. Then, in the country one can rest from the noise and hurry of the town.

Even though one has to get up earlier and spend more time in trains or buses, one can sleep better at

night and during weekends and on summer evenings, one can enjoy the fresh, clean air of the country.

If one likes gardens, one can spend one's free time digging, planting, watering and doing the hundred

and one other jobs which are needed in a garden. Then, when the flowers and vegetables come up, one

has the reward of one who has shared the secret of Nature.

      Some people, however, take no interest in country things: for them, happiness lies in the town, with

its cinemas and theatres, beautiful shops and busy streets, dancehalls and restaurants. Such people

would feel that their life was not worth living if they had to live it outside London. An occasional walk in

one of the parks and a fortnight's (two weeks') visit to the sea every summer is all the country they

want: the_rest they are quite prepared to leave to those who are glad to get away from London every

night.

1. Which of the following statements is NOT true?

A. People who like country things prefer to live outside the city.

B. People who work in London prefer to live in the country.

C. Because of certain disadvantages of living outside London, some people who work in London prefer

to live inside London.

D. Because of certain advantages of living outside London, many people who work in London prefer

to live outside London.

2. One can use the same money for ________ to buy a little house with a garden in the country.

A. getting a small flat with a garden

B. having a small flat with a garden

C. renting a small flat without a garden

D. buying a small flat without a garden

3. When the flowers and vegetables in the garden come up, those ________ have the reward of one

who has shared the secret of Nature.

A. who live in the country

B. who have spent time working in the garden

C. who have a garden of their own

D. who have been digging, planting and watering

4. People who think happiness lies in the town would feel that________if they had to live it outside

London.

A. their life was meaningless

B. their life was invaluable

C. they didn't deserve a happy life

D. they were not worthy of their happy life

填空题