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【正文】 1. I think the TV was invented before the 。被動語態(tài)一般的構(gòu)成形式為:be+動詞過去分詞(+by+動作的發(fā)出者)。其中助動詞be有人稱、數(shù)和時態(tài)的變化。一般現(xiàn)在時:am/is/are+done(過去分詞)一般過去時:was/were+done(過去分詞)一般將來時:will+be+done(過去分詞)含有情態(tài)動詞的:情態(tài)動詞+be+done(過去分詞)即學即用:1),The mobile phone has influenced people’s life a lot since it . A. invents B. invented C. is invented D. was invented 2). Who designed this game? It by Tom in 1999.A. is designed B. designs C. was designed 2.—What are they used for?—They are used for seeing in the dark.——它們是用來做什么的?——它們是被用來在黑暗中照明的。1).be used for意為“(某物)被用做……”,其后接名詞、代詞或動名詞 。 即學即用:This kind of knife is often used for (cut) 。2)be.“used to+動詞原形”表示“過去常常干某事(現(xiàn)在不再干了)”。如:即
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