40. 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.

39. 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　

38. 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　

37. 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　

36. 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　

9.　　　 A. to light　　　 　 B. light　　　　　 C. lit　　　　　　 　D. lighting

8.　　　 A. to run　　　　 　 B. ran　　　　　　 C. run　　　　　　 　 D. running

7.　　　 A. has changed　　　　　　　　　 　　 B. have changed　　

C. having changed　　　　　　　 　　　　 D. have been changed

6.　　　 A. how to use　　 　 B. how using　　 　　 C. what to use　　 　D. what using