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want to know if the train leaves at six .. He asked who the boy was looking for. I don’t know when he arrived. (5)if和 whether引導(dǎo)賓語(yǔ)從句通常可互換,但在下列情況下只可用 whether。 ( 3)若賓語(yǔ)從句陳述的是 客觀真理、客觀事實(shí)、科學(xué)原理、格言、諺語(yǔ)等,則不受主句時(shí)態(tài)的限制,通常用 一般現(xiàn)在時(shí)。 ( 2)若主句用了過(guò)去時(shí),則賓語(yǔ)從句需用 過(guò)去時(shí)態(tài)(一般過(guò)去時(shí)、過(guò)去進(jìn)行時(shí)、過(guò)去將來(lái)時(shí)、過(guò)去完成時(shí))的某種形式。 I think he ____________ here tomorrow. ( e) 我認(rèn)為明天他會(huì)來(lái)這兒。t understand _________ you said. 我不能理解你說(shuō)的話。其意義是 _______ 例如: He asked me if/whether I could speak English. 他問(wèn)我是否會(huì)說(shuō)英語(yǔ)。 【學(xué)習(xí)過(guò)程】 新知導(dǎo)入。 能用賓語(yǔ)從句進(jìn)行聽(tīng)、說(shuō)、讀、寫(xiě)。 能在學(xué)習(xí)語(yǔ)法的過(guò)程中,學(xué)會(huì)一些區(qū)分與歸納的學(xué)習(xí)方法。 (1)介紹: a. I know that your father is a doctor. Betty thinks that it is going to rain this afternoon. b. He asks whether/if we’ll go fishing on Sunday. He doesn’t know whether /if they will plant trees on Saturday or not. c. He asks where the nearest book shop is. Can you tell me how I can get to the station? (2)歸納:請(qǐng)仔細(xì)觀察以上例句,回答下列問(wèn)題 : 以上三組例句均屬賓語(yǔ)從句 , 賓語(yǔ)從句由哪些連詞引導(dǎo)? 語(yǔ)法講解: 賓語(yǔ)從句的具體用法如下: (一)賓語(yǔ)從句通常由以下連詞所引導(dǎo): ( 1)由 _________引導(dǎo)時(shí),它無(wú)實(shí)義,常省略。 I wonder if/whether he is a teac