概要：初中英语延续动词与瞬间动词语法讲解1) 用于完成时的区别延续动词表示经验、经历; 瞬间动词表示行为的结果，不能与表示段的时间状语连用。例如：He has completed the work. 他已完成了那项工作。 (表结果)I've known him since then. 我从那时起就认识他了。(表经历)2) 用于till / until从句的差异延续动词用于肯定句，表示"做……直到……" 瞬间动词用于否定句，表示"到……，才……"。例如：He didn't come back until ten o'clock. 他到10 点才回来。He slept until ten o'clock. 他一直睡到10点。典型例题1. You don't need to describe her. I ___ her several times.A. had met B. have m

初中英语延续动词与瞬间动词语法讲解

1) 用于完成时的区别

延续动词表示经验、经历; 瞬间动词表示行为的结果，不能与表示段的时间状语连用。例如：

He has completed the work. 他已完成了那项工作。 (表结果)

I've known him since then. 我从那时起就认识他了。(表经历)

2) 用于till / until从句的差异

延续动词用于肯定句，表示"做……直到……" 瞬间动词用于否定句，表示"到……，才……"。例如：

He didn't come back until ten o'clock. 他到10 点才回来。

He slept until ten o'clock. 他一直睡到10点。

典型例题

1. You don't need to describe her. I ___ her several times.

A. had met B. have met C. met D. meet

答案B. 首先本题后句强调对现在的影响，我知道她的模样，你不用描述。再次，several

times告知为反复发生的动作，因此用现在完成时。

2. ---I'm sorry to keep you waiting.

---Oh, not at all. I ___here only a few minutes.

A. have been B. had been C. was D. will be

答案A. 等待的动作由过去开始，持续到现在，应用现在完成时。

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初中英语语法：介词短语整理

1.介词+动名词: in doing so, to my saying that

2.介词+连接副词/连接代词/what从句:over what he had better do

3.介词+名词：at the door, into the bag

4.介词+代词: for me, of others

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初中英语语法：时间介词整理

(1)at,in , on 在……时

at表示某一时刻或较短暂的时间，或泛指圣诞节，复活节等。

如: at 3:20, at this time of year, at the beginning of, at the end of …,

at the age of …, at Christmas， at night, at noon, at this moment

在last, next, this, that, some, every 等词之前一律不用介词

如：We meet every day.