主动语态和被动语态Many students study English. S V.O.动作执行者动作动作接受者动作执行者动作动作接受者先找主谓宾，再把宾变主，主动变被动，主语变介宾！bymany students. English is studied不同时态下的被动语态构成:be done一般现在时：一般过去时：情态动词：一般将来时：am/is /are +donewas/were +donecan/may/must/should + be+ donewill+be+ done The desk is made of wood.She was told to return the book in time.Now computers can be used to help them.The work will be finished by them in ten days.Teenagers should be kept away from the Internet.被动语态的用法（1）不知道或没有必要说明动作的执行者是谁It’s / was said / believed / reported / + that …It’s said that a Chinese ruler called ShengNong was the first to discover tea as a drink.（2）强调动作的承受者，这时应用by短语。The cup was broken by David.（3）作客观说明时，采用一种被动语态句型.如：1.He gave me a book. －I was given a book by him. （以I做主语） －A book was given to me by Tom. （以物book作主语） 注意事项1.带双宾语句子的被动语态.见的接双宾语的动词有:五给一带: pass, tell, lend, give，write, bring 买画唱做: buy, draw, sing, make, get,以“人”当主语时，变法和一般的变法一样；以“物”当主语时，在保留的间接宾语前必须加to或for.五给一带 to 不少，买画唱做 for 来帮He gives me a flower everyday. 被动句1：I am given a flower by him everyday. 被动句2：A flower is given to me by him everyday. e.g. My mother bough |
