NSEC Module 7Unit 2 RobotsRevising Useful StructuresMaterials: Revising useful structures (Page 14); Using structures (Page 56) Content: The infinitive, mainly the passive infinitiveObjectives: Language Aim：Revise: a) the form of the passive. b) when the passive is used. 动词不定式的被动式: a）何时用动词不定式的被动式？b）用动词不定式的主动形式表示被动意义的几种情形。Some useful expressions in this part.Ability aim：Be able to apply the passive to express one’s ideas in daily life.Be able to distinguish the passive, especially in NMET.Be able to apply the passive in English writing.Methods: Group discussion；Cooperation with group members；Autonomous learning；References；Asking teachers。 References: Textbook (PP: 14, 56 and 95); Student Times (Issue 27: B3; Issue 28: B3); Oxford Advanced Learner’s English-Chinese Dictionary;Other references.Procedures:Task 1 Revision英语的语态：英语的语态有主动语态和被动语态。主动语态表示主语发出动作，被动语态表示主语承受动作。I bought the dictionary last week. （主语 I 发出“买(bought)”的动作）The dictionary was bought last week. （主语“the dictionary”承受“买(bought)”的动作, 即“被买”）被动式的形式：被动式的原形: be + 过去分词, 其中 be 有各种时态，由此可知：一般现在时的被动式：is/am/are + 过去分词一般过去时的被动式：was/were + 过去分词现在进行时的被动式：is/am/are + being + 过去分词过去进行时的被动式：was/were + being + 过去分词现在完成时的被动式：has/have been + 过去分词过去完成时的被动式：had been + 过去分词一般将来时的被动式：shall/will be + 过去分词过去将来时的被动式：would/should be + 过去分词含有情态动词的被动式：情态动词 + be + 过去分词（情态动词有：can, could, may, might, must, 1need, will, would, shall, should, ought to, dare; 通常把 used to, have to, be able to, would rather, had better 等也当做情态动词来使用。）还要注意：1) be goin...
