Key: C

accustomed

【原句回放】This means that after a while your body becomes accustomed to having nicotine in it and when the drug leaves your body, ... (P18)

【点 拨】accustomed adj. 表示"经常的，惯常的"

be accustomed to "习惯于......"，to是介词，后跟名词或-ing形式。

I'm not accustomed to getting up so early to do morning exercise.

He had become accustomed to living without electricity, and missed it very little.

【拓 展】accustom vt. "使习惯于......",常与介词to连用。

They had to accustom themselves to the hot weather.

【随 时 练】Accustomed to______ the steep mountains, he had no difficulty reaching the top.

A. climbing 　　　B. climb　　　 C. having climbed 　　　D. have climb

Key: A

manage

【原句回放】But I did finally manage. (P18)

【点 拨】 manage vi. to succeed in doing sth. especially sth. that needs a lot of effort or skill 表示"设法完成，成功处理"。

manage to do sth. "设法完成某事"

The pilot managed to circle the balloon for some time.

At first, no ready technical data were available, but we managed to go without.

【拓 展】 区别：try to do与manage to do, 两者都表示设法做某事，manage to do 表示"设法完成"，而try to do 则表示"尽力去做但不一定完成"。

He tried to climb the tree, but he could not.

He managed to avoid an accident.

【随 时 练】 They wanted to charge $5,000 for the car, _______ we managed to bring the price down.

A. but 　　　B. so 　　　C. when 　　　D. since

Key: A

quit

【原句回放】When I was taken off the school football team because I was too slow, I knew it was time to quit smoking. (P18)

【点 拨】quit vt. to leave a job or school permanently 表示"停止；辞职"，其过去式和过去分词要重写最后一个字母，后跟-ing形式。

He has not quit smoking, but is holding down to three cigarettes a day.

One friend of mine has decided to quit his highly-paid but demanding position in his company recently.

【拓 展】区别: abandon, desert, quit