4、wearehaving!Whatbeautifulflowerstheyare!Howcarefullyheisriding!Howbeatifulthegirlis!(2)whether,if引导的宾语从句whether和if都可以引导宾语从句,表示“是否”,在口语或间接引语中两者可以互换使用。如: I wonder if / whether I can get some advice from you. Ask him whether / if he can come. 但在有些情况下,whether和if的用法有一定区别。 1. whether引导的从句常
5、可以与连词or或or not直接连用,而if一般不能。如: 正: Let me know whether you can come or not. 误: Let me know if you can come or not. 2. 当宾语从句提到句首时,只能用whether引导,而不能用if。如: 正: Whether it is true or not, I can’t tell. 误: If it is true or not, I can’t tell. 3. whether可以引导带to的不定式,if则不能。如: 正: I don’t know
6、whether to accept or refuse. 误: I don’t know if to accept or refuse. 4. whether及其引导的成分可放于介词之后,作介词的宾语,但if不能。如: 正: I worry about whether I hurt her feelings. 误: I worry about if I hurt her feelings. 五,训练评价1.Idon'tknow_________hewillcometomorrow._________hecomes,I'lltellyou.A.if;Whether
7、B.whether;WhetherC.if;ThatD.if;If2.Idon'tknow_________thedayaftertomorrow.A.whendoeshecomeB.howwillhecome3.DidPetercomehereyesterday?LiLeiwantstoknow.(改为含宾语从句的复合句)LiLeiwantstoknow_________Peter_________hereyesterday.选词填空(What / What a / What an / H