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1、英语语法基础入门集合学习】一年级网权威发布一年级学生英语语法集合学习,更多一年级学生英语语法集合学习相关信息请访问小学一年级网。正确的语法可以简化信息,简洁的一句话就能传达许多信息,甚至包含多重意思,就像双关语一样。语法正确还能避开歧义,明确指代关系和修饰对象等,是很有用的,学进去了就明白了。以下是大范文网整理的相关资料,希望对您有所帮助! 一般过去时现在完成时主要用于:1 、表示到现在为止这一时期中发生的动作或状况,即多次动作的总和。e.g. We have learnt four English songs this month.How many times have you read t
2、he novel?For many days we havent seen each other.2 、表示对现在有影响的某一已发生的动作。e.g. The delegation has left 代表团已经走了(说明现在不在这里)Look, what you have done. 看你干的事。与这一时态连用的时间状语有:already, yet, just, ever, never, by now, so far, recently, by the end of this month, since, for 短语,连词 since 引导的时间状语从句。一般过去时与现在完成时的区分:一般过去时
3、:重在说明动作在过去发生时的详细状况(时间、地点、方式、对象、细微环节等)。现在完成时:只提起已发生的动作(事实)及其影响,不说明动作发生时的详细状况。cf. Have you had your lunch?What did you have for lunch?I have ever been to the Great Wall,_and_I went there last summer with my father.注:现在完成时表达的动作常具有反复性,故下面一句是错的:Have you seen the six thirtys news program?应改为:Did you see t
4、he six thirtys news program?过去进行时主要用于:表示过去某个时刻或阶段正在进行的动作。e.g. At that time she was working in a PLA unit.那时她在解放军某部工作。What were you doing this time yesterday?与这个时态连用的时间状语常用:at nine oclock, this time last night, these days, at that time 等。用 when 引导的时间状语从句表示主句的动作正在进行的时间。e.g. When he came in, I was read
5、ing a newspaper.注:1 、 while 引导时间状语从句叙述过去的动作时,从句常用过去进行时。e.g. I read a magazine while I was waiting for the bus.2 、 when 用作并列连词,意为“这时”,连接两分句时,第一句多用过去进行时。e.g. I was reading a newspaper when he came in.一般过去时与过去进行时的区分:一般过去时:强调过去某一时间起先或完成的动作。过去进行时:强调过去某一时间正在进行的动作。试区分下面两句: We were building a reservoir last
6、 winter.去年冬天我们在修建一座水库。(可能尚未建成) We built a reservoir last winter.去年冬天我们修建了一座水库。(已经建成)一般将来时主要用于:表示将要发生的动作或状况e.g. Tom will have a bike of his own.与这个时态连用的时间状语常用:tonight, tomorrow, the day after tomorrow, next week, in three hours, two days later 等。一般将来时态与其它结构表将来状况的区分:一般将来时态 :主要从时间的角度表将要发生的动作或状况。be goin
7、g to 结构 :表(主观上)准备或打算做某事时。 表有发生某事的预兆时。e.g. They are going to have a competition with us in studies. It is going to rain.据以上区分,故下面一句是错的:I am going to be eighteen years old next year.应改为: I shall be eighteen years old next year.be about to do sth 结构 :意为“刚要做某事”、“立刻要做某事”强调时间之紧迫性。e.g. We are about to discuss this problem.