浙江省温州市永嘉中学教育集团楠江校区高二英语 Unit 4 Astronomy the science of the stars language points 学案1. whether …. or not whether 可以引导_______________________________________;而 if 只能引导_______________。引导宾语从句既可以用 whether, 也可以用 if, 两者常可以互换。 He asked me whether / if I could lend him my bike. Could you tell us whether / if it snows in winter in Australia? ① whether 和 if 都可以和________连用, 但是 whether 之后可以直接跟 or not, 而 if则不能, 如：I don’t know whether or not he’s coming.但是不可以说：I don’t care if or not your car breaks down.② whether 引导的从句一般不可以为________ (选择问句的后一部分除外); 而 if 则可以跟否定结构, 如: I don’t care if she doesn’t come. 但是, 在某些动词或形容词之后, 则可以用 whether 引导一个否定结构的句子, 这种结构往往表示肯定的含义, 如： I wonder whether he doesn’t think too much of himself. 其意思相当于: I think he does think too muc h of himself.③ 个别动词之后, 如_______等, 只跟用 whether 引导的宾语从句，如: They discussed whether they should close the shop.④ whether 可以引导_____________________, 而 if 则不能, 如： I’m not interested in whether they’ll go or not.⑤ whether 可以直接跟________________连用, 而 if 则不能, 如: I didn’t know whether to laugh or to cry. She hasn’t decided whether to go or not.2.in time 终于；及时；迟早，总有一天翻译：1) You’d better return it in time.________________________________________2) The storm was in time to stop before the sports meeting._______________________________________________3) You’ll learn how to do it in time._______________________________________【考点提示】【即学即练】1. To complete the project_______, the staff were working at weekends. 为了按时完成工程，全体员工周末都在上班。2. The flowers were so lovely that they we...
