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.doc

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 / ifI 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’ing. 但是不可以说: I don ’t care if or not your car break s 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 ’e. 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 muc h 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. 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 todo it in time. _______________________________________ 值得注意的是: 【考点提示】【即学即练】 1