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sked me if I liked maths. u 賓語從句與簡單句的交換。 例: The teacher said that the earth goes round the sun. He told me that Japan is an island country. lCould you tell me… 是用來征詢對方的意見,語氣委婉,并不表示過去。如果從句的動作發(fā)生在主句之前,則從句要用過去完成時態(tài)。 賓語從句的時態(tài)受主句的限制, 既:主句是一般現(xiàn)在時態(tài),從句根據(jù)實際情況而定。連接代詞 who,whom,whose, what, which,和連接副詞when, where, why, how 等連接的賓語從句,它們在句中即有連接從句的作用,又在句中充當(dāng)句子的成分。 例: I don’t know if/whether he will e tomorrow. The teacher asked if/whether we had finished the experiment. l在介詞后面的賓語從句中不用 if 引導(dǎo) 例: Everything depends on whether we have enough money。 例: We think it wrong that he told a lie to everyone (我認(rèn)為他向每一個人撒謊是錯誤的 ) B,由連詞 if、 whether 引導(dǎo)的表示 “是否 …” 的賓語從句。 例: I told him that he was wrong. l在 think,believe, suppose, expect等動詞引起的賓 語從句中,有時謂