摘要：有一类名词作主语时往往需要不定式作表语.这类名词有: hope, idea.job.mistake.plan.suggestion.wish.work.aim.purpose.thing.business.news.information e.g. The purpose of the trip was to record all the wildlife. 旅行的目的是记录所有的野生动物.His aim is to go to a famous university.他的目的是上一所名牌大学.Her job is to clean the building.他的工作是打扫这栋楼. ⅵ.作状语 1)目的状语 in order to / so as to do sth e.g. He stopped to have a look. 他停下来看了一看. In order to earn enough money, he worked late into the night. 为了赚到足够的钱, 他工作到深夜. He ran quickly in order to / so as to catch the last bus. 他跑得很快以便赶上那末班车. 2)结果状语. aso-as to do sth / such-as to e.g. Would you please be so kind as to help me? 请你发发慈悲帮帮我吧? He is such a fool as to believe them. 他是那样一个傻瓜结果竟相信了他们. b表示出乎意料的结果.常与only.never等连用. e.g. He went to school early only to find nobody was there.他很早去了学校.结果发现学校没人. She went back home only to find there was a thief in her house.她回到家结果发现她家有个贼. She went abroad never to return.她出国了结果再也没后来. 3)原因状语 sb be adj. to do 其中的不定式作状语.形容词为“高兴.激动.兴奋.愤怒angry.delighted. excited, glad, pleased.sorry.surprised, - 等表示情绪的词. e.g.He was sorry to have done her harm.他很抱歉伤害了她. 不定式的一些结构:1)too glad / happy / anxious / eager / ready / willing / thankful-to do 表肯定:He is too ready to get the dictionary.他太愿意得到那本词典. 2)sb / sth be heavy/ light/ hard/ difficult/ easy/ important/ (un)comfortable/ interesting/ boring, tiring/(im)possible /pleasant /nice /safe /dangerous /cheap /fit /--to do 结构中的不定式用主动表示被动. e.g. The story is easy to read.这故事读着容易. 3) 不定式符号to的保留与省略: 在be able (glad, happy, pleased, delighted) to; have to; expect.hope, plan.seem, want, wish; mean, intend; suppose; would like / love 等后的不定式.可承前省略to后的部分.保留to. e.g. ---Would you go there? --- I’d like to, but I’m too busy. I have said what I meant to. 但是.如果to后是be, have, have been.要保留这些词. ---I didn’t tell him the news. ---Oh, you ought to have. ---Are you a doctor? ---No, but I used to be. 作like, try的宾语时.to可一并省略. e.g. You can stay at home or go out, in a word, you can do whatever you like. 练一练1. Sorry, I’m very busy and I can’t help you the house. A. clean B. cleaning C. to clean D. A or C

网址：http://m.1010jiajiao.com/timu3_id_2959895[举报]