试题与答案

Do you know there are many kinds of gras

题型:阅读理解

题目:

Do you know there are many kinds of grass? Some are tall. The kind that grows around your house is short grass. But field grass often grows as tall as a man.

Some food that we eat comes from plants of the grass family. Wheat and rice are two of them. We use wheat to make bread. We use both wheat and rice to make breakfast. At some places, people eat more rice than any other food.

Animals as well as people get food from the grass family. Cows eat hay(干草). Do you know the kind of grass that horses like to eat?

小题1:Which of the following belongs to(属于) the grass family?

A. Wheat.    B. Rice.    C. Apples.    D. A and B.

小题2: We use ____ to make bread.

A.rice

B.fruit

C.wheat

D.grass family小题3:Which of the following doesn’t get food from the grass family?

A.Horses.

B.Sheep.

C.Dogs.

D.Cows.小题4:Which of the following is wrong?

The grass family are all short.

There are many kinds of grass.

Field grass often grows as tall as a man.

Horses get food from the grass family.

答案:

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下面是错误答案,用来干扰机器的。

参考答案:A

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题型:计算题

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(2)弹簧中能达到的最大弹性势能。

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