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初一下学期英语语法讲解

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初一下学期英语语法讲解
急用啦
初一下学期英语语法讲解
11.动词的时态
11.1 一般现在时的用法
I leave home for school at 7 every morning.每天早上我七点离开家.
2) 客观真理,客观存在,科学事实.例如:
The earth moves around the sun.地球绕太阳转动.
4) 现在时刻的状态、能力、性格、个性.例如:
I don't want so much.我不要那么多.
Ann writes good English but does not speak well.安英语写得不错,讲的可不行.
比较:Now I put the sugar in the cup.把糖放入杯子.
I am doing my homework now.我正在做功课.
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.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,所以后句用一般现在时.
返回动词的时态目录
11.2 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.例如:时间状语有:yesterday,last week,an hour ago,the other day,in 1982等.例如:
Where did you go just now?刚才你上哪儿去了?
2)表示在过去一段时间内,经常性或习惯性的动作.例如:
When I was a child,I often played football in the street.我是个孩子的时候,常在马路上踢足球.
Whenever the Browns went during their visit,they were given a warm welcome.
那时,布朗一家无论什么时候去,都受到热烈欢迎.
3)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 that sb.did sth."时间已迟了" "早该……了" ,例如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.还是明天来吧.
4) wish,wonder,think,hope 等用过去时,作试探性的询问、请求、建议等,而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.例如:I thought you might have some.我以为你想要一些.
比较: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)
注意:用过去时表示现在,表示委婉语气.
1)动词want,hope,wonder,think,intend 等.例如:
Did you want anything else?您还要些什么吗?
I wondered if you could help me.能不能帮我一下.
2)情态动词 could,would.例如:
Could you lend me your bike?你的自行车,能借用一些吗?
返回动词的时态目录
11.3 used to / be used to
used to + do:"过去常常"表示过去习惯性的动作或状态,但如今已不存在.例如:
Mother used not to be so forgetful.老妈过去没那么健忘.