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1、现在完成时,现在完成时:表示过去已经发生或已经完成的某一动作对现在造成的影响或结果。 即“过去的动作 + 现在的结果”, 强调结果。如: I have bought a new bike. (= I bought a new bike, and I have a new bike now.) 我已经买了一辆新的自行车。(强调我现在有了一辆新车。) 构成形式: 助动词have / has + 动词的过去分词 肯定句: I have seen the film. 我已经看过这部电影。 否定句: I havent seen the film. 我没看过这部电影。 一般疑问句: Have you se
2、en the film? 你看过这部电影了吗?,现在完成时常与下列表不明确的状语连用: 1already 和 yet already “已经”(多用于肯定陈述句),如:He has already gone home. 他已经回家了。 yet “已经; 还”(用于否定句或疑问句),如:Have you found him yet? 你已经找到他了吗? I havent finished my homework yet. 我还没完成作业。 already 也可用于疑问句,表“出乎意料或惊奇” Have you finished your homework already? 难道你已经完成作业了?
3、 2ever 和 never ever “曾经”(多用于疑问句,问初次经历),如:I have ever been abroad. 我曾出过国。 never never“从未;从来不”(多用于否定陈述句),常回答ever的句型。如: I have never seen him before. -Has he ever been abroad? 他曾出过国吗?-No, never. 不,从来不。 3just just “刚刚”(多用于肯定句,位于谓语动词之前),如: I have just tried to call you. 我刚刚打电话给你。 4before before “之前”(一般位于
4、句末;常与never呼应), 如: He says he has never seen such beautiful scenery before. 他说他以前从来没看过这么美的风景。,回答: Yes, I have. 是的,我看过了。 No, I havent. 不,我没看过。 特殊疑问句: What have you done? 你已经做了什么?,have/ has been to与 have/ has gone to have/ has been to + 某地, 到过某地,说话时人已经回来了。 have /has gone to + 某地, 说明去了某地, 说话时人还没回来。 如: I have been to Beijing twice. 他去过北京两次。 - Where is Jim? 吉姆在哪儿?- He has gone to the library? 他去图书馆了,