第一章八年级知识点复习1.系动词表示不完全谓语关系的动词，本身有含义，但是不能单独做谓语，后面必须跟表语一起构成谓语，称为系表结构。形容词，名词及动词不定式（to do ）都可以做表语。系动词有三类： A. be 动词： am is are was were B. 表示感官类的动词： look smell sound feel taste C. 表示变化类的词： go( 变得⋯ ) get become grow turn keep stay . I feel terrible. The food went bad. The weather becomes warmer and warmer. The leaves turn green.2.使役动词make /let 的用法make 的常用句型： a. make + 宾语 + n ：使⋯成为⋯ They made him captain. b. make + 宾语 +adj.：使⋯处于某种状态：Eating too much made him ill. c. make + 宾语 +v ：使人做某事 : Doing exercise makes us keep fit.Let 的常用句型： a. let + 宾语 +v:让某人做某事： He doesn’t let her drink wine.b. let +宾语 +adv ：Let him out. c. let +宾语 + conj：Who let him intothe room 3. 动词不定式 ：to + 动词原形 （to 有时可省）不定式的否定形式是在to 的前面直接加 not. . Mom told me not to smoke.不定式可以和疑问词what, how, where, which, when, who连用。（ why不用）. Can you tell me how to get to the bankI can ’t de cide which to buy在复合句与简单句之间的转换，也可用这种句型：. I don’t know what I should do next time. = I don’t know what to do next time.不定式在句子中除了谓语之外，可充当任何句子成分。. To learn English well is very important. (做主语 )His job is to save people in danger.(作表语 )I want to take part in the meeting. (作宾语 )It 做形式主语的句型A.It + adj + for sb. + to do sthB.It + adj. + that 从句C.It takes sb. + 时间 + to do sth.. It is necessary for us to eat healthily.It is necessary that we should eat healthily. It took me three hours to finish my work yesterday.It 做宾语和形式宾语可以接带 to 的动词不定式作宾语的动词主要有：要求、选择、同意(ask, choose, agree)，期...
