必修一一英语阅读理解试题(科技类)

(1)

The computer is a useful machine. It is the most important invention in many years. The oldest kind of computer is the abacus(算盘), used in China centuries ago, but the first large, modern computer was built in 1946. A computer then could do maths problems quite fast.

Today computers are used in many ways and can do many kinds of work. In a few years the computer may touch the life of everyone, even people in faraway villages.

In the last few years, there have been great changes in computers. They are getting smaller and smaller, and computing faster and faster, Many scientists agree that computers can now do many things, but they cannot do everything. Who knows what the computers of tomorrow will be like? Will computers bring good things or bad things to people? The scientists of today will have to decide how to use the computers of tomorrow.

1. The computer is a _______ machine.

A. helpful

B. strange

C. large

D. dangerous

2. The first large, modern computer was built about _______ years ago.

A. a few

B. forty

C. sixty

D. eighty

3. The computers of today are _______ than before.

A. bigger

B. fewer

C. smaller

D. taller

4. Computers can do _______.

A. everything

B. anything

C. nothing

D. lots of things

5. The scientists of today _______ how to use the computers of tomorrow.

A. may decide

B. must decide

C. can make

D. needn’t make

(2)

Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail(桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.

1. Hundreds of years ago, Sir Francis Bacon found _______.

A. the temperature of warm water drops faster than that of cold water

B. warm water is heavier than cold water

C. warm water has the same temperature as cold water

D. warm water is not as useful as cold water

2. What Sir Francis Bacon said was right, but people didn't believe him until _______.

A. late in the 20th century

B. early in the 20th century

C. three years ago

D. late in the 19th century

3. Leave a pail with warm water and another pail w ith cold water in the same low temperature, you’ll find that _______.

A. cold water freezes first

B. warm water turns into ice before cold water

C. warm water and cold water freeze at the same time

D. much of cold water is changed into air.

4. Why does warm water freeze first in the same freezing weather?

A. Because some of the warm water turns to vapor, the amount(数量) becomes less than that of cold water.

B. Because warm water is lighter than cold water.

C. Because the temperature of warm water is lower than that of cold water.

D. Because cold water freezes with more difficulty than warm water.

(3)