高中英语选修６二单元

＊在听讲之前，找出下文中的

＊各种从句 ＊读不懂的地方

＊起修饰作用各种的非谓语动词

（介词短语、动词不定式、

现在分词、过去分词等）

①When I was young, I didn't know much about the harmful effects of smoking.

②I didn't know, for example, that it could do terrible damage to your heart and lungs or that it was more difficult for smoking couples to become pregnant.

 ③I certainly didn't know their babies may have a smaller birth weight or even be abnormal in some way. ④Neither did I know that my cigarette smoke could　affect  the health of non-smokers.