英语时态的语法总结

　　【基本用法】

英语时态的'语法总结

　　“过发现影”--- 表示过去发生，对现在造成了影响。

　　e.g. Their parents have known the good news.They look excited.

　　“过发持续”--- 表示从过去开始，持续到现在的动作或状态。

　　e.g. I have learned English for 10 years.

　　“经历” --- 表示曾经做过某事，或曾做过n次

　　e.g. I have seen the film Titannic twice.

　　【时间状语】

　　already, just, yet, since, since then, for, recently / lately,

　　so far = till / until now = up to now, in the last / past few years,

　　How long…ever, never, before, once, …times

　　【重难点】

　　延续性与非延续性动词的用法

　　什么时候才必须用延续性动词？出现how long, for+时间段, since+时间点

　　非延续性动词转化

　　▲ 高频考点

　　borrow → keep buy → have

　　finish / end → be over begin / start → be on

　　open → be open die → be dead

　　join → be in / be a…member leave →be away（from）

　　▲ 需了解记忆

　　get up → be up fall asleep → be asleep

　　fall ill → be ill, lose → be lost

　　become → be return / come back / get back → be back

　　close → be closed catch / get a cold → have a cold

　　arrive /come / go / move / reach /get to → be in /at / be here /be there

　　【易错点】

　　in the past few years (不是 a few)

　　have been to, have gone to和have been in的区别

　　already与yet区别

　　since+时间点，for+时间段（since 3 years ago; for 3 years）

　　since 引导的从句要用一般过去时

　　It is /has been + 时间段 + since + 从句（一般过去时）

　　He came to our school in 2000, since then he has taught English here.

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