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高中英语各种时态讲义全

。 一、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 状语: every…, sometimes, at…, on Sunday I leave home for school at 7 every morning. 2) 客观真理,客观存在,科学事实。 The earth moves around the sun. 3) 表示格言或警句中。 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 如: Columbus proved that the earth is round. 4) 现在时刻的状态、能力、性格、个性。 Ann Wang writes good English but does not speak well. 比较:Now I 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。 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 来表示在时间上已确定或安排好的事情。 The train leaves at six tomorrow morning. 2)倒装句,表示动作正在进行,如: Here comes the bus. = The bus is coming. -可编辑修改- 。 3)在时间或条件句中。 When Bill comes (不是 will come), ask him to wait for me. 4)在动词 hope, take care that, make sure that 等后。 I hope they have a nice time next week. 二、一般过去时的用法 1)在确定的过去时间里所发生的动作或存在的状态。 时间状语有:yesterday, last week, an hour ago, the other day, in 1982 等。 I saw Tom in the street yesterday. 2)表示在过去一段时间内,经常性或习惯性的动作。 When I was a child, I often played football in the street. 3)用过去时表示现在,表示语气委婉礼貌。 (1)动词 want, hope, wonder, think, intend 等。例如: Did you want anything else? I wondered if you could help me. (2)情态动词 could, would,例如: Could you lend me your bike? 4)用在条件句中表示与现在或将来事实不符的虚拟语气。 If he were here now, we could turn to him for help. 注意比较下列句型: ◎ It is time for sb. to do sth “到……时间了;该……了”,例如: It is time for you to go to bed. 你该睡觉了。 ◎ It is time sb. did sth. “时间已迟了;早该……了”,例如: -可编辑修改- 。 It is time you went to bed. 你早该睡觉了。 ◎ would (had) rather sb. did sth. 表示“宁愿某人做某事”,例如: I'd rather you came tomorrow. 一般过去时表示的动作或状态都已成为过去,现已不复存在。 Christine was an invalid all her life. (含义:她已不在人间。) Christine has been an invalid all her life. (含义:她现在还活着) Mrs. Darby lived in Kentucky for seven years. (含义:达比太太已不再住在肯塔基州。) Mrs. Darby has lived in Kentucky for seven years. ( 含义:现在还住在肯塔基州,有可能 指刚离去) 三、一般将来时 1) shall 用于第一人称,常被 will 所代替。will 在陈述句中用于各人称,在征求意见时常用 于第二人称。 Which paragraph shall I read first? Will you be at home at seven this evening? 2) be going to +不定式,表示将来。 a. 主语的意图,即将做某事或打算做某事。 What are you going to do tomorrow? b. 计划,安排要发生的事。 The play is going to be produced next month. c. 有迹象要发生的事 Look at the dark clouds; there is going to be a storm. 3) be +不定式表将来,按计划或正式安排将发生的事。 -可编辑修改- 。 We are to discuss the report next Saturday. 4) be about to +不定式,意为马上做某事。 He is about



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