Question

Can plants eat people? Probably not, but there are many plants that eat meat. Some of them are big. And they can eat small animals. One famous meat-eating plant is the Venus flytrap(捕蠅草).

The Venus flytrap is a very strange plant. It grows in dry parts of the United States. Its leaves are like the pages of a book. They can open and close very quickly. Inside the leaves, there are three small hairs. If a fly touches one of the hairs, the leaf closes quickly. The fly cannot get out. In about half an hour, the leaf presses the fly until it is dead. Then, the plant covers the fly. Slowly, the plant eats the fly.

Why do plants do it? Most plants get what they need from the sun, the air, and the ground. In some places, the ground is very poor. It doesn't have all these important things, especially nitrogen(氮). Animal meat has a lot of nitrogen, so some plants eat meat to get what they need. Let's hope that some of the bigger plants don't get the same idea!

1.The Venus flytrap is a kind of _________.   

A．plant             B．animal            C．food             D．meat

2.The underlined word "presses" probably means _________ in Chinese．

A．擠壓             B．關上             C．打開             D．松開

3.Why do some plants eat animal meat?

A．Because plants are dangerous to animals.

B．Because animals are dangerous to plants.

C．Because plants want to get what they need from animal meat.

D．Because plants want to protect themselves against animals.

 

Answer 1

【答案】

1.A

2.A

3.C

【解析】

試題分析：這篇短文描寫了世界上的食肉植物，以捕蠅草為例講述了植物的捕食過程，并解釋了植物為什么捕食動物的原因。

1.根據(jù)One famous meat-eating plant is the Venus flytrap(捕蠅草).及上文描述可知只是一種植物，故選A。

2.聯(lián)系上文If a fly touches one of the hairs, the leaf closes quickly.可知這是擠壓之力，故選A。

3.根據(jù)Animal meat has a lot of nitrogen, so some plants eat meat to get what they need.可知選C。

考點：關于食肉植物的說明文

點評：本文淺顯易懂，層次分明，學生很容易把握文中中心內容。答題中注意帶著問題閱讀短文，一般就能順利找出答題依據(jù)。對于不能直接找到根據(jù)的問題注意聯(lián)系上下文，根據(jù)短文中心總結出正確答案。