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告訴你。如: I worry about whether I hurt her feelings. 我擔(dān)心是否傷了她的感情。如: I don’t know whether or not he will e tomorrow. 我不知道他明天是否要來。如 : Did the train leave? She didn’t know. →She didn’t know if/whether the train had left. Ⅲ . if和 whether的區(qū)別。如: Does Mr Zhao live in Room 208? Could you tell me? →Could you tell me if/whether Mr Zhao lives in Room 208? 其次要注意時態(tài)變化: 1. 若主句是一般現(xiàn)在時,從句用任何所需時態(tài)。如: Millie asked if/whether he liked this sweater. 米莉問他是否喜歡這件羊毛衫。如: She said (that) she would e and that she would also bring her son. 她說她要來,還要帶她的兒子來。 2. that從句中含有主從復(fù)合句。 that不能省略的幾種情況: 在由 that引導(dǎo)的賓語從句中,由于連詞 that只起引導(dǎo)功能,無具體意義,不擔(dān)當(dāng)任何成份,因此在口語或非正式的文體中??墒÷浴T俑鶕?jù)下句 I have already got “不需要” , 故可排除 C。 Exercises: 1. —May I go surfing alone this afternoon, Dad? —No, you ____. It is dangerous. A. may not B. can’t C. needn’t D. don’t 選 B。 might是 may的過去式,它也可以用來表示征求對方意見,不過很少用。 b) —Could I hand in our homework later, Mr Lin? 林老師,我可以稍后交作業(yè)嗎? —No, you can’t. 不,不行。如: —Can I borrow your bike, Simon?