八年级英语下 unit5 Grammar focus.ppt

1、Unit 5、grammar focus、what were they doing when it began to rain？they were playing computer games when it began to rain。they were playing chess when it began to rain。they were playing football when it began to rain。while Jake was sleeping，what did his brother do？he played basketball。when Jake was sle

2、eping、his brother played basketball。while they were dancing、the telephone rancing They were dancing、while they were dancing、what happened？he was singing when the baby started to cry。while he was singing，the baby started to cry。while he was walking，a taxi came He was walking when a taxi came，both of

3、them mean 当时，Are they the same？不！when and while，when，when牙齿引导的时间副词子句可以表示时间点或持续时间。句子中可以使用临时动词或连续性动词。it was snowing when we got to the airport。我们到达机场的时候正在下雪。my key dropped on the ground when I was walking in the park .我在公园散步，钥匙掉在地上了。while引导牙齿的时间状语经常指持续时间，从句中的动词总是持续的。(威廉莎士比亚，温斯顿，时间，时间，时间，时间，时间，时间)While

4、有时可以表示小节的动作和小节的动作同时发生。While he was reading，the phone rang。他在看书的时候，电话铃响了。some students were reading while others were writing。一些学生在看书，其他学生在写字。while，1)子句是暂时的动作，主子句是持续的动作，when可以使用，但不使用while:it was raining hard when we arrived。我们到达的时候雨下得很大。2)显示主、子句正在进行的动作或状态的对比度时，while:while she was making a phone call，

5、I was writing a letter。when和while的区别，3) when可以用作并行连接词，While可以用作表示“但是”(对比)的并行连接词，但when没有这种用法。were about to start when it began to rain . he likes coffee，while shelikes tea。practice、 1 . I _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _(watch)TV when She _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ to rain . 4 . while John _

6、_ _ _ _ _ _ Were having，started，was sleeping，stole， 5 . while we _ _ _ _ _ _ _ _ _ _ _ _(wait)A girl _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ were testing、went、wasmaking、rang、translation、translate the following sentences into engle、I was playing basket basket be ，2 .我当时都不知道我在做什么。I did not even kn

7、ow what I was doing at that time。3 .我在做妈妈晚餐的时候，我在做卧室作业。I was doing my homework in the bedroom while my mother was cooking supper。4 .我今天早上看到她时，她正赶着上班。when I saw her this morning，she was in a great hurry to go to work。()1 . Mary _ _ _ _ _ _ _ a dress when shecut hut一方面，when手表的同时性，“玛丽做衣服的时候”提供了事情发生的背景，

8、因此将科举进行。c、()2。whileshe _ _ _ the newspaper，granny _ _ _ asleep . a . read；Was falling B. was readingFell C. was readingWas falling D. readFell，解决方案：while“那时”。描述一个茄子事件发生的背景时，过去进行。发生一个长动作时，会发生另一个短动作。文章的意思是：“她读报纸的时候奶奶睡着了。”在句子中，fell (fall的科举)是系动词，后跟形容词(例如fall sick)。科举进行型的基本用法：表示科举任何时刻或时间持续的动作，文章中经常需要表示牙

9、齿特定时间的时间状语。What were they doing just now？他们刚才在做什么？b、4a、look at the table and write sentences with both while and when。while John was taking photos，Mary bought a drink。John was taking photos when Mary bought a drink .while John was playing the piano，Mary left the house。/John was playing the piano whe

10、n Mary left the house。while John was cleaning his room，Mary turned on the radio。/John was cleaning his room when Mary turned on the radio。while John was shopping，Mary took the car to the car wash./John was shopping when Mary took the car to the car wash。4b，fill in the blanks with was，were。At7:00a.m

11、.I wokeup。_ _ _ _ _ _ _ _ _ I _ _ _ _ _ making my break fast，mybrother The radio news标记的about_ _ _ _ _ _ _ we Dent、thecar _ _ _ _、while、was、was、while、when、was、in bhile.the driver _ _ _ _ _ _ _ fine . the roads _ _ _ _ _ _ _ _ icy because of the heavy snow from，I was having dinner。ask and answer。what

12、 were you doing between 7 oclock and 9 oclock yesterday、I was doing my homework、I was watching tv。what was your father doing when you came back home yesterday？he was cooking，what was your brother doing when you saw him half an hour ago？he was playing computer games。what was Tom doing at that time la

13、st Sunday？he was playing the piano。he was riding a bike。how about David？what were they doing at that time last week？They were shopping。How about them？They were having a picnic。(科举进行中)、科举进行中科举特定时间点或一段时间内正在进行的作业。科举进度由was/were动词-ing格式组成。Past Progressive Tense、1 .科举进行的各种文章：肯定语句：赋给was/were动词-ing格式，否定语句：赋

14、给was/were not动词-ing格式，I wasnt reading at this time yesterday。昨天这个时候我没看书。疑问句： (1)一般疑问句3360was/were主语动词-ing形式。必须为：是，主语was/were。否定回答：否，主语wasnt/werent。例如，were you reading at this time yesterday？昨天这个时候你在看书吗？是，I was。/no，I wasnt。是的，我在看。不，我没在看。(2)特殊疑问句：疑问词was/were主语动词-ing形式。例如，what were you doing at this time yesterday？昨天这个时候你在做什么？what was he researching all day last Sunday？上星期天他整天在研究什么？(1)表示在科举的任何时刻或一段时间内进行的动作，经常与时间状语at that time、at