3．suffer from 遭受

　　4．apart from 除了；远离

　　5．quit 停止；放弃

　　6．lung cancer 肺癌

　　7．cause/lead to/result in 导致

　　Ⅱ.巧用单元句式、语法

　　(一)完成句子

　　1．众所周知，吸烟有害健康。

　　As we all know，smoking is harmful to our health.

　　2．吸烟导致许多疾病。

　　Smoking causes/leads to/results in many illnesses．

　　3．吸烟对中学生的危害更大。

　　Smoking is even more harmful to middle school students．

　　4．吸烟对他们的身心健康都有损害。

　　Smoking does great harm to their health physically and mentally．

　　5．由吸烟导致的最严重的疾病就是肺癌。

　　The most serious illness that was caused by smoking is lung cancer.

　　(二)句式升级

　　6．用it作形式主语改写1句

　　It is known to all that smoking is harmful to our health.

　　7．用强调句式改写2句

　　It is smoking that causes many illnesses.

　　8．用过去分词短语作定语改写5句

　　The most serious illness caused by smoking is lung cancer.