Question

Americans love cars. They have more than 250 million (百万) cars ---about one car for every 1.2 people. But these cars cause (引起) too much air pollution. Even children know that cars need gas (汽油)  to run. If there is no gas, today's cars will become tomorrow's about the cars in the future, they usually think of hydrogen (氢气) cars, electric (电的) cars and flying cars.

Hydrogen cars might be the cars of the future. They don't cause pollution and the hydrogen turns into water after it is used. The first hydrogen car was made by Honda. It was very expensive and didn't run very far.

There are some electric cars on the market, but they can't run very far or very fast. In the future, there will be a lot of electric cars on the road. When the batteries (电池) are better and cheaper, electric cars will become more popular.

There will be another kind of car --- flying cars. They will be able to run in the air. But now there is only one company, MDI, making this kind of car.

1.We can know from the text that there are about     _ people in American.

A. 250 million    B. 300 million      C. 208 million

2. Hydrogen turns into       after it is used.

A. water          B. air                   C. gas

3.Which of the following is TRUE about electric cars?

A. They can run fast but not very far.

B. They are very popular with people now.

C. They are still too expensive for people to buy.

4.How many kinds of cars are mentioned in the passage?

A. Two                 B. Three                 C. Four

5. What is the best title for the text?

A. Cars in the future.

B. Americans and cars.

C. Air pollution.

Answer

1.B

2.A

3.C

4.C

5.A

【解析】

试题分析：这篇短文中作者给我们介绍了几种未来汽车的类型，因为我们今天的汽车会造成环境污染，所以未来会出现其他类型的汽车，如氢气汽车、电动汽车和会飞的汽车。

1.细节理解题。根据短文的开头They have more than 250 million (百万) cars ---about one car for every 1.2 people.可知，美国有250百万辆汽车，每1.2个人中就有一辆。由此我们可以计算出美国的人口是300百万。故选B。

2.细节理解题。根据短文第二段中the hydrogen turns into water after it is used.可知，使用过的氢气转变成水。由此可知选A。

3.推理判断题。根据第三段中There are some electric cars on the market, but they can't run very far or very fast.可知，电动汽车跑得不快，故A不对；根据When the batteries (电池) are better and cheaper, electric cars will become more popular.可知B不对；根据When the batteries (电池) are better and cheaper, electric cars will become more popular.可以看出，电动汽车的电池比较贵。故选C。

4.细节理解题。根据短文第一段中If there is no gas, today's cars will become tomorrow's about the cars in the future, they usually think of hydrogen (氢气) cars, electric (电的) cars and flying cars可知，这篇短文中提到了四种汽车，我们今天的燃烧汽油的汽车、氢气汽车、电动汽车和能飞的汽车。故选C。

5.主旨大意题。这篇短文中作者给我们介绍了几种未来汽车的类型，因为我们今天的汽车会造成环境污染，所以未来会出现其他类型的汽车，如氢气汽车、电动汽车和会飞的汽车。因此A选项Cars in the future未来的汽车，这个题目最为合适。故选A。

考点：科普类短文阅读。