问题 单项选择题

女性实验员,昏迷送急诊。突出症状为身体极其高热。疑误食入实验室毒物,最可能的是

A.鱼藤酮

B.氰化物

C.二硝基酚

D.二巯基丙醇

E.异戊巴比妥

答案

参考答案:C

解析:[解题思路] 在这些毒物中,二硝基酚是解耦联剂,不抑制电子传递过程,使电子传递产生的自由能都转变为热能,身体极热。其他毒物均抑制呼吸链,不产热。[命题规律] 考察“氧化磷酸化的调节”。重点掌握。

阅读理解

Early to bed, early to rise, makes a man healthy, wealthy and wise.

This is an old English saying. Do you know it before? It says that we must go to bed early and get up early in the morning. Then we should be healthy. We should also be rich (wealthy) and clever (wise).

This is true. The body must have enough sleep to be healthy. Children of a young age should have ten hours’ sleep every night. Children who don’t have enough sleep can’t do their work very well. They will not be wise and they may not become wealthy!

The body also needs exercise. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body strong.

Exercise also keeps the blood(血液)moving around inside the body. This is very important. Our blood takes food to all parts of our body. The head also needs blood. Exercise helps us to think better!

小题1:If a child doesn’t have 10 hours’ sleep every night, he _____.

A.will become wise

B.won’t do well in his work

C.will have to sleep in the daytime

D.can’t go to school in time小题2:A person needs exercise because ______.

A.it makes him healthy

B.he has a lot of homework to do

C.it doesn’t need time

D.it is fun to do exercise小题3:Exercise makes the _______ move quickly and smoothly.

A.body

B.blood

C.children

D.head小题4:Which of the following is not true?

A.Exercise is good for a person’s head

B.A student should have 10 hour’s sleep.

C.It’s good for you to get up early and go to bed early.

D.If you have enough blood, you’ll be wise

阅读理解与欣赏