被動語態(tài)課件講解-文庫吧
2025-07-21 15:32 本頁面
【正文】 4]. Three bridges ____ since last year. A. have built B. were built C. have been built 現(xiàn)在完成時的被動語態(tài)：have/ has+ been + done [5]. Flowers ____ every day. A. has been watered B. should be watered C. should water 含有情態(tài)動詞的被動語態(tài)： 情態(tài)動詞 + be + done Oral practice1. Change each sentence into passive voice: 1)A car knocked him down yesterday. 2)Two doctors and ten nurses make up the medical team． 3)When I got there, they were cutting up a fallen tree． ?He was knocked down by a car yesterday． ?The medical team is made up of by two… ． ?A fallen tree was being cut up, when I got there. 4)We’ll put on the play next Sunday． 5)Workers are building a new teaching building in our school． 6)They had pleted the railway by the end of last year． ?The play will be put on next Sunday． ?A new teaching building is being built by workers in our school． ?The railway had been pleted by the end of last year． 7)We should protect the earth． 8)You need to paint the wall． ?The earth should be protected． ?The wall needs to be painted． (三 )何時使用被動語態(tài)？ 行為主體不明確，不必說出或者無法說出動作的執(zhí)行者時。例如： Football is played all ove
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