Skim the passage and do the following exercises.

1．What's the main idea of the first part?

A．The grandfather lives a healthy life because of his quitting smoking.

B．The three ways of becoming addicted to smoking.

C．The harmful effects of smoking.

D．A letter explaining how a smoker becomes addicted to cigarettes and why he should give them up.

答案　D

2．What's the main idea of the second part?

A．Advice on how to stop smoking.

B．How to prepare yourself.

C．Suggestions on breaking the habit of smoking.

D．Millions have managed to quit smoking and so can you.

答案　A

3．Find out the main idea (or topic sentence) of each paragraph.

Para.1　　　A．Grandad talks about James' problem of smoking.

Para.2　　　B．The harmful effects of smoking.

Para.3　　　C．Grandad tells about the life he is living and the importance of a healthy life.

Para.4　　　D．Grandad's hope for James and his advice on stopping smoking.

Para.5　　　E．The three different ways of becoming addicted to smoking.

Para.1：C　Para.2：A　Para.3：E　Para.4：B　Para.5：D

Read the passage carefully and choose the best answer.

1．Why did James' grandfather write to James?

A．Because he wanted to tell James his experience.

B．Because he wanted to tell James the harmful effects of smoking.

C．Because he wanted to help James give up smoking.

D．Because he wanted to help James get some information.

答案　C

2．In what way did grandad try to persuade James?

A．By using scientific theory.