问题 单项选择题

分子具有电子能级、振动能级和转动能级,各能级的能量顺序为()。

A、E转动>E振动>E电子

B、E电子>E振动>E转动

C、E电子>E转动>E振动

答案

参考答案:B

选择题
阅读理解

阅读理解。

                                                                   Life in 2060

      Let us suppose it is now about A.D. 2060. Let's imagine it is about fifty years from now. Of course, things have changed and life is very different.

     Voyages to the moon are being made every day. It is as easy to take a holiday on the moon today as it was

for the people in 1960 to take a holiday in Europe. At a number of scenic spots on the moon, many hotels have

been built. The hotels are air-conditioned, naturally. In order that everyone can enjoy the beautiful scenery on

the moon, every room has at least one picture window. Everything imaginable is provided for entertainment of

young and old.

     What are people eating now? People are still eating food. But many foods now come in pill form, and the

food that goes into the pill continues to come mainly from green plants.

     Since there are several times as many people in the world today as there were a hundred years ago, most of

our planet's surface has to be filled. The deserts are irrigated with water and crops are no longer destroyed by

pests. The harvest is always good.

     Farming, of course, is very highly developed. Very few people have to work on the farm. It is possible to

run the farm by just pushing a few buttons now and then.

     People are now largely vegetarians (素食者). You see, as the number of people increases, the number of

animals decreases. Therefore, the people have to be vegetarians and we are healthier both in our bodies and in

our minds, and we know the causes and cure of disease and pain, and it is possible to get rid of diseases. No

one has to be ill any more.

     Such would be our life in 2060.

1. According to the passage, what will be on the moon in about A. D.2060?

A. Many tourists.

B. Many other animals.

C. Many plants.

D. A sea.

2. What will people eat then according to the passage?

A. Biscuits in pill form.

B. Foods in pill form.

C. Foods in water form.

D. Foods in gas form.

3. The passage tells us that in 2060, _____ on the earth than now.

A. there are fewer population

B. there are more pests

C. there is less water

D. the crops are getting better

4. Why are people largely vegetarians in 2060?

A. Because they don't eat meat.

B. Because doctors advise them not to eat meat.

C. Because the number of animals decreases.

D. Because all the animals have died of diseases.