2、,强调,插入语)教学内容一、知识点1、现在完成时一、定义:现在完成时表示的是在过去某个时间开始并持续到现在的动作/状态,或者过去的动作或状态对现在造成的影响或结果。 Idon’twanttoseethefilm,becauseIhaveseenitbefore也可表示持续到现在的动作或状态,或有可能有可能停止,或有可能继续延续下去。 He has learned English since 2001. 从2001年开始学的(,现在还在继续学着呢)二、.现在完成时的结构现在完成时的构成形式: have /has
3、(助动词)+done(过去分词) I/You/They/We have talked . He/She has talked. 现在完成时的否定结构就是在助动词have或has后加上否定词not; I/You/They/We haven’t(have not) talked . He/She hasn’t(has not) talked. 其一般疑问句就是将助动词have或has提到句首, Have I/You/They/We talked . Has he/she talked. 肯定的简略回
4、答是:Yes,主语+have/has.,否定的简略回答是:No,主语+have/has not.。 如: I have seen the film. →Have you seen the film? Yes, I have./No, I haven’t.三、现在完成时的标志 1、for+时段②since+过去一个时间点(过去从句)为标志.for 与since区别: for +时间段 since+ 时间点 I have lived in Changchun_______
5、___ two years. I have been here__________7 o'clock. IhavestudiedinthisschoolsinceIcametoChina用since和for填空 ______ two years 2._______ two years ago 3. _______ last month 4.______ 1999 2、already(肯定句),yet(否定,疑问句)I have already finished m
6、y homework. already用在_______,位于_______。 “已经” Have you finished your homework yet? yet用在_______和________中,位于_______。“仍然,已经” 3)so far(目前;迄今为止) up to now=till now=by now到现在为止;直到现在 recently 最近 by the end of…到…末/结束by the end of this year 到今年年末 by the e
7、nd of this month到本月末 in the last /past months在过去的几个月中 in the past/last few days/years 在过去的这几天4、用于现在完成时的句型 1)It is the first / second time that+现在完成时。 2)It was the first / second time that+过去完成时 这是我第一次欣赏月光。 __________________________________________________
8、_______3) 用“It is/has been+时间段+since…”句型。如:It is/has been three years since I bought the book. (从买这本书起到现在已三年了) 四、跟一段时间连用表示持续动作或状态的动词必须是延续性动词。例如:(1)这本书我已经买了三个月了。错误:Iha