中考英语知识点现在完成时

中考英语知识点现在完成时 出guo中考网为大家提供中考英语知识点：现在完成时，更多中考英语复习资料请关注的更新! 现在完成时： 1.概念： 过去发生或已经完成的动作对现在造成 * 或结果，或从过去已经开始，持续到现在的动作或状态。 2.时间状语： recently, lately, sincefor,in the past few years, already ,yet ,never ,ever, just, before, so far ,once, twice etc. 3.基本结构： have/has + done 4.否定形式： have/has + not +done. 5.一般疑问句： 把have或has放于句首。 6.反义疑问句： 直接用has /have 进行反问 7.注意： 1).have been to /have gone to /have been in 的区别 have been to +地点 表示曾经去过某地，现人已返回。(once ,twice .) have gone to +地点 表示人已去了某地，人还未返回。(where is sb ?) have been in +地点 表示在某地呆多长时间。(for./ since .) 2).与时间段连用时，短暂性动词应改为相应的延续性动词。 Come/go to - be at /in leave -be away from buy -have borrow /lend -keep open -be open close-be closed die-dead start/begin -be on join-be in /be a member of /be a soldier bee be make friend -be friend get up -be up fall asleep -be asleep catch a cold have a cold reach/get/arrive-stay/be 3).现在完成时的四种句型： A).主语+短暂性动词的过去式+ 时间+ago B).主语+have/has +延续性动词的过去分词+for./since . ago . C).Its +时间段+since +短暂性动词的过去式 D).时间段+has passed +since +短暂性动词的过去式 His grandfather died two years ago . His grandfather has _ _ for two years. _two years _ his grandfather _. Two years _ _ _ his grandfather _. 4).现在完成时与一般过去时的区别 现在完成时与现在有关的时态，他侧重于过去的动作对现在造成 * 。而一般过去时侧重于表示过去的动作与现在无关，若询问该动作发生的具体的时间时，只能用一般现在时。 Has he returned the library book ? Yes, he has. W