语法总结

用于现在完成时得句型

布局中得从句局部,用现在完成时, 1，It is the first / second time.... that

比方,

It is the first time that I have visited the city.

这为我第一次访问这都会,

这为我第一次听他唱歌, ， that ， I've heard him sing. This is the first time

留意, It was the third time that the boy had been late.

从句要用现在完成时,比方,

2，This is + 形容词最高级 +that 布局,that

这为我看过得最好得影戏, ，ever ， seen. This is the best film that I've

典范例题

，1， ---Do you know our town at all?

---No, this is the first time I here.

A. was B. have been C. came D. am coming

背面所加从句应为如今完成时,应选 答案 B. This is the first time B,

2， ---Have you been to our town before?

---No, it's the first time I here.

A. even, come B. even, have come C. ever, come D. ever, have come

答案D. ever 意为曾经或无论何时,反意词为 never ,此两词常用于完成时,

留意,非连续性动词得否认情势可以与表现连续时间得状语连用, 即行动不产生

得状态为可以一连得,

，错，I have received his letter for a month.

，对，I haven't received his letter for almost a month.

比拟since 与 for 11.12

用去阐明行动起始时间, for 用去阐明行动连续时间长度,比方, Since

我住在这儿二十多年了, I have lived here for more than twenty years.

我从出生起就住在这儿了, I have lived here since I was born.

作为时间状语得句子都用如今完成时, 留意,并非有 for

，我如今已不在这里事变,， I worked here for more than twenty years.

，如今我仍在这里事变,， I have worked here for many years.

留意,用句型转换得要领,很轻易清除非连续动词在有 布局得完成时 for/since 中得误用,

1，，对， Tom has studied Russian for three years. = Tom began to study Russian three years ago, and is still studying it now.

2，，错， Harry has got married for six years. = Harry began to get married six years ago, and is still getting married now.

显然,第二句不对, 它应改为 或 Harry has Harry got married six years ago.

been married for six years.

11.13 since 得四种用法

1， since + 已往一个时间点 ，如详细得年、 月、日期、钟点、1980, last month,half pastsix，,比方,

起,我不停在这儿, I have been here since 1989. 1989

2， since + 一段时间 + ago ,比方,

我在这儿,已经有五个月了, I have been here since five months ago.

3， since + 从句,比方,

你走后,变革可大了, Great changes have taken place since you left.

我们走后,变革可大 Great changes have taken place since we were here. 了,

从句,比方, 4， It is + 一段时间 + since

It is two years since I became a postgraduate student. 我考上研究生有两年了,

连续动词与刹时动词11.14

1， 用于完成时得区别

连续动词表现履历、履历, 刹时动词表现举动得效果,不能与表现段得时间状语连用,比方,

他已完成了那项事变, ，表效果， He has completed the work.

我从当时起就熟悉他了,，表履历， I've known him since then.

从句得差别

2， 用于 till / until

直到, 连续动词用于肯定句, 表现 " 做 刹时动词用于否认句, 表现 " 到 " 才 ",比方,

他到10 点才回去, He didn't come back until ten o'clock.

他不停睡到10 点, He slept until ten o'clock.

       编辑推荐：

       2023年中考各科目重点知识汇总