词汇：
profile n．侧影，概貌
hazard n．危险，危害
checkup n．健康检查，体检
martini n. 马提尼酒
portrait n．画像，肖像
addiction n．嗜好，瘾
baseline n．基础，起点
marihuana n．大麻烟(一种毒品)
练习：
1．A)know B) have known C) need know D) need to know
2．A)with B) in C) on D) at
3．A)diet B) meals C) food D) dinner
4．A)use B) devote C) spend D) take
5．A)on B) in C) with D) about
6．A)if B) whether C) either D) neither
7． A)To complete B) Completing
C) Completion D) To be completed
8． A)as B) for C) on D) about
9．A)Unless B) Once C) If D) Although
10．A) around B) with C) about D) on
11．A)work B) task C) job D) place
12．A) on B) with C) after D) by
13．A) thought B) idea C) thinking D) talk
14．A)for B) in C) with D) on
15．A) reap B) harvest C) benefit D) lead