2014-2015学年人教版选修7Unit1LivingwellPeiod1学案.doc

Unit 1 Living well (Module 7) Period 1 New words and warming up Week ______ Period _____ 一. 结构 : to do (否定) not to do 二. 时态与语态 ?主动语态被动语态一般式to doto be done进行式to be doing?完成式to have done?to have beendone 完成进行式to have been doing---------三. 用法/ 功能 (1)不定式做主语 不定式做主语一般表示具体的某次动作。 To complete the 30 storied building in one year was quite a difficult task.To do that implies taking responsibility. 当主语较长，谓语较短时，常用it做形式主语，而将不定式放到谓语的后面。It is important for modern young people to master at least two foreign languages. It做形式主语，不定式放在谓语动词之后常用于下列结构中： a) It is＋形容词(easy, important, difficult, foolish, inconvenient, unnecessary, right, wrong...)＋( for/of sb.)＋不定式 It is essential to reserve a table in advance of Christmas Eve. It is not easy to catch fish with your hands only. It is important for us young people to learn English and master it. b) It is＋名词(a pleasure, a pity, ones duty, an honor, a shame, no easy job...)＋不定式 It is a waste of time to read that kind of book. It is a pity to have to go without her. c) It takes (sb.) some time (hours, months, days, a lot of time, patience...) ＋不定式 It takes me three hours to learn English each day. It took them half the night to get home in the snow. (2) 不定式作表语 不定式作表语常表示将来的动作，主语常常是表示意向、打算、计划的词，如wish, idea, task, purpose, duty, job等。 The most important thing for ones health is to have plenty of exercise. What I wanted was to get the work done as quickly as possible. 3)不定式作宾语 不定式常在下列动词后面作宾语： afford, agree, apply, arrange, ask, attempt, beg, begin, choose, claim, demand, decide, desire, determine, expect, fail, hope, hesitate, hate, intend, learn, like, manage, mean, offer, plan, prepare pretend, promise, refuse, seek, want等。 I want to go home. The workers demanded to get better pay. 不定式作宾语还常用在下面结构中: 主语＋动词＋it＋形容词＋不定式。 We found it impossible to get everything ready in time. I think it important to learn English well in college. 使用这种句型的常见动词有： believe