问题 单项选择题

男,56岁,右膝关节疼痛半年,加重5天,尤以上楼梯加剧,X线片显示膝关节退行性改变,诊断为髌骨软骨软化症,非手术治疗首先应制动膝关节

A.1~2周

B.3~4周

C.5~6周

D.无需制动

E.制动2个月

答案

参考答案:A

阅读理解

阅读短文,选择正确答案。

    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 (捕蝇草).

    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 Venus flytrap grows in             . [ ]

A. most parts of the world

B. some parts of Africa

C. dry parts of the United States

D. wet parts of England

3. From the passage, we learn that             . [ ]

A. all plants can eat people

B. all plants can eat animals

C. some plants can eat people

D. some plants can eat animals

4. The underlined word "presses" probably means              in Chinese. [ ]

A. 挤压

B. 关上

C. 打开

D. 松开

5. Why do some plants eat animal meat? Because             . [ ]

A. plants are dangerous to animals

B. animals are dangerous to plants

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

D. Plants want to protect themselves against animals

选择题