Ⅰ.Match the word with its meaning.
1．powerful A．上瘾的
2．needle B．(注射用的)针；针管
3．inject C．减少；缩减
4．danger D．毒品；药品
5．tobacco E．香烟
6．cigarette F．癌症
7．cancer G．烟草；烟丝
8．drug H．危险
9．reduce I．注射
10．addictive J．有力的；(药等)有功效的
答案：1～5 JBIHG 6～10 EFDCA
Ⅱ.Write down the meaning of phrases in each sentence.
1．It may also be related to childhood. 与……有关系
