问题 单项选择题

取用试剂时,错误的说法是()

A.不能用手接触试剂,以免危害健康和沾污试剂

B.瓶塞应倒置桌面上,以免弄脏,取用试剂后,立即盖严,将试剂瓶放回原处,标签朝外

C.要用干净的药匙取固体试剂,用过的药匙要洗净擦干才能再用

D.多取的试剂可倒回原瓶,避免浪费

答案

参考答案:D

阅读理解

阅读理解。

     What makes one person more intelligent than another? What makes one person a genius, like the brilliant

Albert Einstein, and another person a fool? Are people born intelligent or stupid, or is intelligence the result

of where and how you live? These are very old questions and the answers to them are still not clear.

     We know, however, that just being born with a good mind is not enough. In some ways, the mind is like

a leg or an arm muscle. It needs exercise. Mental (done with the mind) exercise is particularly important for

young children. Many child psychologists (心理学家) think that parents should play with their children more

often and give them problems to think about. The children are then more likely to grow up bright and intelligent.

If, on the other hand, children are left alone a great deal with nothing to do, they are more likely to become

dull and unintelligent. Parents should also be careful with what they say to young children. According to some

psychologists, if parents are always telling a child that he or she is a fool or an idiot, then the child is more likely

to keep doing silly and foolish things. So it is probably better for parents to say very positive (helpful) things to

their children, such as "That was a very clever thing you did." or "You are such a smart child."

1. The words "intelligent" and "brilliant" in the first paragraph probably mean _____ while "dull" in the second paragraph means _____. [ ]

A. bright and splendid; slow in thinking and understanding

B. pretty and handsome; ordinary-looking

C. great and important; common

D. hopeful and helpful; careless 

2. According to the context we can guess that a genius is _____ while an idiot is _____. [ ]

A. a normal person; a funny person

B. a strong person; a weak person

C. a highly intelligent person; a foolish or weak-minded person

D. a famous person; an ordinary person 

3. A person _____ is more likely to become a genius. [ ]

A. whose parents are clever

B. often thinking about difficult problems

C. often helped by his parents and teachers

D. born with a good brain and putting it into active use 

4. It is better for parents _____. [ ]

A. to praise and encourage their children more often

B. to be hard on their children

C. to leave their children alone with nothing to do

D. to give their children as much help as possible 

5. Which of the following is NOT true according to the article?[ ]

A. Parents play an important part in their children's growth.

B. The less you use your mind the duller you may become.

C. Intelligence is obviously the result of where and how you live.

D. What makes a person bright or stupid is still under discussion.

问答题 案例分析题