2016-2017学年人教版选修7Unit2RobotsGrammar课件（64张）.ppt

Learning about  language;; My mother felt alarmed when I had my hair coloured purple. My mother was alarmed when I had my hair coloured purple. ;Discovering useful structures Go over the passive voice 1. be+ V+-ed/-en/-t My homework was eaten by the dog. The toy is made by hand.;使用被动语态的情况;2)当我们出于礼貌、措辞圆通等方面的 考虑不愿说出动作的执行者是谁时。 You are requested to give a performance. You are cordially(诚挚地) invited to a party to be given at the Teachers Club at 3 p.m. Nov. 23.;使用被动语态的情况;被动语态由be＋过去分词构成，be随时 态的变化而变化。以give为例，各种时 态的被动语态形式为： 一般现在时：am/is/are＋given 　　　 The first section of New College English is designed for speaking practice and is based on pictures and topics.;一般过去时：was/were＋given 　　【例句】 　　These computers were made in our own country. 一般将来时：will/shall be＋given 　　【例句】 　　Shall we be asked to attend the opening ceremony? 　;　　Sir Denis, who is 78, has made it known that much of his collection ____to the nation. (CET-4 1996, 6) has left B) is to leave　 C) leaves D) is to be left ;过去将来时：would be＋given 　　【例句】 　　The news would be sent to the soldiers mother as soon as it arrived. 　　;【例句】The machine is being repaired in the workshop. The fifth generation computers, with artificial intelligence, are ____and perfected now. developed B) have developed C) are being developed D) will have been developed;本句测试点是动词的时态和语态 develop和perfect是两个并列的谓语动词 perfect 用的是被动形式，develop也应该 用被动形式，而且句子的时间状语为now 故develop应用现在进行时的被动语态， 答案为C。; 过去进行时：was/were being＋given 　　　The feast was being prepared when the birds arrived in the sky 现在完成时：has/have been＋given 　　　Swift progress has also been made in culture and education. ;过去完成时：had been＋given The huge bridge had been damaged before the World WarⅡ. 　　 将来完成时：will/shall have been＋given The book will have been published by the end of next month.;含有情态动词的动词变成被动语态：情态动词+be +过去分词 ;George might be sent to American by his c