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【基本用法】 “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. (责任编辑：admin) |