Unit 7 被动语态-修改.ppt

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?Electricity is used to run machines. (电用于驱动机器。) 含有情态动词的谓语变成被动语态时,用“情态动词(can, may, must)+be +过去分词构成。 例如: This machine must be operated with care. 这台机器必须小心操作。 含有 “be going to” “be to” 等结构的谓语,变成被动语态时,分别用“be going +to be +过去分词 “和 “be +to+过去分词“构成。 例如: The problem is going to be discussed at the meeting. The meeting is to be held on the 10th of October. 被动语态与基本句型 (Passive-Voice---Basic Patterns) 主+动(SV) He studies very hard. 主+动+表 (SVP) He is a student. 主+动+宾 (SVO) He studies English. 主+动+宾+补 (SVOC) His father will make him a doctor. 主+动+间宾+直宾 (SVOiOd) He gave me some book. 主语+动词+宾语 People grow rice in the south. (主动) 在南方人们种植水稻。 Rice is grown in the south. (被动) 水稻在南方种植。 主语+动词+宾语+宾补 1)They elected him chairman of the club. 他们选举他为这个俱乐部的主席。 He was elected chairman of the club. 他被选为这个俱乐部的主席。 The teacher asked the students to write a composition. The students were asked to write a composition. Tom painted the door blue. The door was painted blue by Tom. [注] 如果主动句子中的宾补是不带to的不定式,当句子变成被动语态时作为主补的不定式则应该加上to例如: The manager made his secretary work overtime. 经理迫使他的秘书加班加点。 The secretary was made to work overtime. 这个秘书被迫使加班加点。 主语+动词+间接宾语+直接宾语 该句型有两种被动语态形式,即:间接宾语和直接宾语均可成为被动句的主语。 例如: Father will give her and expensive present. (Active voice) She will be given and expensive present. (by her father) An expensive present will be given (to) her (by her father) [注] 及物的短语动词也可使用被动语态,但是要防止遗漏与动词连用的介词或副词。 例如: a. John turned on the radio. The radio was turned on by John. Grandma takes care of my sister. My sister is taken care of by Grandma. 有些动词虽然是及物的,但是由于表示的是状态或关系,通常不用于被动语态,常见的这部分动词有: cost, fit, have, hold, lack, last, own, possess, resemble, suit 例如: The boy resembles his father. 不可以说成:His father is resembled by the boy. 有少数短语动词如:be taken in (上当,受骗),be supposed to do something (应该,被期望),be intended for something (somebody)/to do something(旨在,用于),通常只用于被动语态。 例如: If you trust him, you will certainly be taken in. 如果你相信她,你肯定会上当的。 我们应该七点在大

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