2023年仁爱科普版英语初中八大时态详解

初中八大时态 八大时态的分类:一般现在时、一般过去时、一般将来时、过去将来时、现在进行时、过去 进行时、现在完成时、过去完成时。 一、一般现在时 概念:指经常、习惯性、反复发生的动作或行为及现在的某种状况,常与表示频度的时间状 语连用。 结构:动词+原形(如主语为第三人称单数,动词上要加(eS)(be/not+do) 否定形式:am/is/are+not;此时态的谓语动词若为行为动词,则在其前加don't,如主语为 第三人称单数,则用doesn't,同时还原行为动词。 一般疑问句:把be动词放于句首;用助动词do提问,如主语为第三人称单数,则用does, 同时,还原行为动词。 一般现在时的用法 1、经常性或习惯性的动作,常与表示频度的时间状语连用。 时间状i语:every.,sometimes,,at,on Sunday,,usually,often 例句:I leave home for school at7:O0 every morning He cycles to work every day. 2、客观真理,客观存在,科学事实。 例句:The earth moves around the sun. Shanghai lies in the east of China. Water boils at 100 centigrade degrees. 3、表示格言或警句中。 例句:Pride goes before a fall.骄者必败。 注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。 例知:Columbus proved that the earth is round.. 4,现在时刻的状态、能力、性格、个性。 例句:Idon't want so much. Ann Wang writes good English but does not speak well. 比较:Now|put the sugar in the cup. I am doing my homework now. 第一句用一般现在时,用于操作演示或指导说明的示范性动作,表示言行的瞬间动作。再如: Now watch me,I switch on the current and stand back,第二句中的now是进行时的标志,表 示正在进行的动作的客观状况。 4、谈论时间表、旅程表等。 例句:What time does the film begin? The football match starts at 8o'clock. Tomorrow is Thursday. 5、谈论籍贯、国籍等。 例句:Where do you come from? I come from China.你是哪国人?我是中国人。 Where do you come from? I come from Guangzhou.你是哪里人?我是广州人。 6、询问或者引用书籍、通知或新近接到的信笺内容。 例句:What does that notice say? What does Ann say in her letter? She says she's coming to Beijing next week. Shakespears says,"Neither a borrower or a lender be." 莎士比亚说:“既不要向人借钱,也不要借钱给别人。” 知识扩展:一般现在时表将来 1)下列动词:come,go,arrive,,leave,start,begin,return的一般现在时表将来。这主要用来 表示在时间上己确定或安排好的事情。 The train leaves at six tomorrow morning. When does the bus star?It stars in ten minutes. 2)倒装句,表示动作正在进行,如: Here comes the bus.The bus is coming. There goes the bell.The bell is ringing. 3)在时间或条件句中。 When Bill comes will come),ask him to wait for me. I'll write to you as soon as I arrive there. 4)在动词hope,take care that,,make sure that等后。 I hope they have a nice time next week. Make sure that the windows are closed before you leave the room. 二、一般过去时