牛津高中英语必修3语法复习提要

牛津高中英语必修3语法复习提要 Senior English Revision for Grade 1(B) that 无意无用（宾语从句中常省略） IV. Grammar 1) 连接词 if/whether 有意无用 名词性从句 wh- how 有意有用 语序：陈述句语序：S V. 时态（主要是宾语从句的时态受主句影响） P/S. 在名词性从句中，whether 和 if 一般可互换，但下列情况下，whether 不可以用if 代替： 当介词或discuss 后接宾语从句时，只能用whether; We are talking about whether we should attend a lecture on Pompeii tomorrow. We are discuss whether we should attend a lecture on Pompeii tomorrow. 2)当名词性从句用在句首作主语从句时，只能用whether; Whether the work can be completed in advance is doubtful. 3)与or not 连用时，只能用whether; I don’t know whether or not the plane will take off in such foggy weather. 4) 其后接动词不定式时，只能用whether。 He was still hesitating over whether to go or to stay. it 的用法 非人称代词：指天气、时间、距离、环境 It was sunny yesterday, but today it is pouring with rain. It’s nearly 7:00. Let’s raise the national flag. Don’t panic! It’s only half an hour’s ride to the hospital. Unlike winter, it gets very crowed here in summer. a)代替刚刚提到的事物Look at the table.It occupies too much room. 2)人称代词 b)代指抽象事物 It’s all my fault. I should whisper it to you. c)代指性别不详的婴儿 What a beautiful baby-- is it a girl? d) 代指一个双方都知道的东西 What does it consist of? 3)作形 a)It takes some time to do sth. It took me a year to learn to read Chinese character. 式 b) It +be +adj. (of/for sb. )+to do sth. It’s kind of you to raise funds to help needy youngsters. It’s important for us to grasp this opportunity. c)It +be +n. +to do/that 从句. It is an honor to to share my wealth. 语 d)It +be +n./adj. +doing It is no use crying over split milk.覆水难收。 e) It +be +过去分词+从句 It was reported that a heavy snowstorm hit the mainland last week.据报道上周大陆遭到强暴风雪的袭击。 f) It +动词 +名词 +动词不定式 It occupies most of my leisure time to do that. g) It +feels +adj. +动词不定式 It feels wonderful to have a swim in the river such a hot weather. 4）作形式宾语，代替后面真正的宾语（动词不定式或从句等） 常用的句型结构：主语+谓语V +it +adj./n. +动词不定式或从句 （常用此句型结构的动词有make, think, feel, find, consider....) I think it a long progress to get fit again. She found it important to learn English. 5)用于强调句型： It is/was +被强调部分+that/who +其他. It was finding his home that the volunteer aided the old man in. It was the volunteer who/that aided the old man in finding his home. P/S. 在强调not... until 句型中的时间状语时，主句的not 要前移到until 前。 It was not until he came back that he recognized he had lost his keys. it 的 a) 表示“是谁（在某处或做某事）”-- Is that Tom over there? --No, it’s Bob 其他 b)表示电话中的“你/我” -- Who’s that speaking? -- It’s Lily. Is it Bob？ 用法 c)泛指某事物 It doesn’t matter. It’s your turn now. 3. 宾语补足语 a) 使役动词 make, let, have, keep, get... 常见能接 He made/let/had the workers decorate his house in green and black. 宾语补 ... ...