Unit 1 reading&grammar 课件 2020-2021学年人教版高中英语选修七

Unit 1 Revise the Infinitive Marty says… Self-study 主语 宾语 主语 表语 宾补 状语 定语 动词不定式的作用 Functions of Infinitive 1 主语 (subject) 2 表语 (predicative) 3 宾语 (object) 4 宾补 (object complement) 5 定语 (attribute) 6 状语 (adverbial) 7 独立结构 (absolute construction) 三. 用法/ 功能 To see is to believe. It’s important to learn English. (1). 主语 不定式作主语时,往往放在谓语之后, 用it作形式主语. 三. 用法/ 功能 My job to teach students. Your task to clean the classroom. is is (2). 表语 Seeing is to believe. To see is believing. Seeing is believing. To see is to believe. × √ √ × 不定式常用在系动词 be, seem, appear, get, remain等后作表语。 All you have to do is (to) finish the job quickly. 如果主语部分有个表示不定式内容的do, 用作表语的不定式可省略to。(前有do，后无to) I want to go home. I found it necessary to talk to him again. (3) 宾语 think/ consider/ find it + adj.+ to do 同意提出做计划， 要求答应来帮忙。 准备决定遭拒绝， 敢于选择有希望。 不能做到莫假装， 设法做成决心坚。 通常只能接不定式作宾语的动词：（口诀） agree (同意)； offer (提出)； intend， plan (打算，计划)； demand， ask (要求)； promise (答应)； help (帮忙)； prepare (准备)； decide (决定)； refuse (拒绝)；dare (敢于)； choose (选择)； wish，hope，want， expect (希望，想要)； fail （不能；忘记）； pretend (假装)； manage (设法)； determine （决心）。 The teacher told me to clean the blackboard. I expect you to give me some help. (4). 宾补 My mum asks me to play the piano two hours every day. The teacher told me to clean the blackboard. I expect you to give me some help. 引导不定式作宾补的动词： 五看 watch see look at observe notice 三使 let make have 二听 listen to hear 一感觉: feel warn, tell, allow, help, ask, force等 +sb to do sth + sb do sth （省略to） I made him do his work. He was made to do his work (by me). 变成被动，被省略的to 要还原。 不定式用在介词but, except, besides 后时,如果这些介词前有行为动词do的 各种形式,那么介词后的不定式不带to, 相反则带to. (1). She could do nothing but cry. (2). I have no choice but to go. Note 1 Note 2 I have something to say. He has a lot of homework to do . He is looking for a room to live in . There is nothing to worry about. (5). 定语（后置） (如果不定式中的动词是不及物动词, 则不定式中要有介词.) 当名词被the first ,the last, the only等词以及形容词最高级修饰时，其后也用不定式修饰 eg