(
课件网) Module 5 Balance and harmony Unit 1 Getting along with others Guangde No.3 Middle School The fifth period 本单元的Grammar主要讲的是不定式和动名词的用法。目的在于让学生了解动词不定式在句中的六个主要作用以及否定式、完成式、进行式、一般式被动、完成式被动、不定式复合结构。第二个语法内容是动名词在句中的四个功能和否定式、完成式、一般式被动、完成式被动、动名词复合结构。 设计思路： 在课件的开始用一个flash(过山车)作为导入激发学生的兴趣,由此展开对动词不定式的学习。在整个过程中，始终坚持先练后讲的原则，在实践中由学生自己总结，老师再作适当的补充。作为高二的学生，适当了解一些高考题考查该语法的热点和考点是十分必要的。 To-infinitive Part 1 To-infinitive 1.to do as a subject The cat said, “To take roller coaster is terrible ”. 不定式短语作主语时，可以直接放在句首，但在很多情况下，尤其是在疑问句和感叹句中，往往放在谓语之后，而用先行代词it作形式主语。 The cat said, “It’s terrible to take roller coaster.” How long did it take you to take roller coaster? How terrible it is to take roller coaster! 过山车. wmv 不定式作主语常见句型： a) It is + adj. (easy, important, difficult…) + 不定式 b) It is + n. (a pity, a pleasure, one’s duty, a shame…) + 不定式 c) It takes/needs/requires + some time (hours, months, days, patience…) + 不定式 It requires patience to be a good teacher. It’s my duty to teach you how to be a student of Nanjing No.3 Middle School. 2.to do as a predictive Our most important task now is to make a plan. 当句子的主语是aim, idea, policy, question, suggestion, wish, task, duty, job, purpose等或者主语是what引导的名词性从句时，后面可以用不定式做表语，用以说明主语所包含内容。 注：作表语的不定式都带to，但当主语部分有实义动词do时，to可以省略。 Now the only thing we can do is wait. 3.to do as an object The cat said “Remember not to take it next time!” (Tips:不定式否定为not to) a) 可以直接用不定式作宾语的动词很多，如agree, afford, tend, ask, decide, determine, expect, fail, hope, learn, intend, manage, offer, plan, promise, refuse, want, wish 天津卷12题：I don’t want _____ like I’m speaking ill of anybody, but the manager’s plan is unfair. A. to sound B. to be sounded C. sounding D. to have sounded 当不定式短语比宾补长时，往往将 不定式放到宾补后，而用先行代词it 作形式宾语，常用动词有feel, think, find, believe, consider, make等。 The cat felt it terrible to take roller coaster. b) 只有少数介词如but, except等后面可以跟不定式作宾语。一般情况下作介词宾语的不定式都带to，但如果but或except所在句子里的谓语动词含有do, does, did时，通常省略to。 We have no choice but to wait. Cf. We can do nothing but wait. 4. to do as an object complement You should get them to help you . (They will help you.) They believed him to be honest. (He was honest.) (常用谓语动词有: get,ask,force, order, tell, invite, allow, wish, want,like ,expect,advise , beg等。) 但在谓语动词believe, find , think, feel, consider, suppose, imagine, prove 等后面 跟to be…作宾补,不跟to do… The boss made her work long hours. 主语 谓语 ... ...
