牛津译林版八年级英语上册课件：unit8 natural disasters grammar （共25张PPT）
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| 名称 | 牛津译林版八年级英语上册课件：unit8 natural disasters grammar （共25张PPT） |  | |
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| 文件大小 | 354.3KB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 牛津译林版 | ||
| 科目 | 英语 | ||
| 更新时间 | 2016-10-08 14:46:07 | ||
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课件25张PPT。Unit 8 Grammar一、小组合作朗读单词和词组或句子（整齐，响亮）
1.损坏；打破vi.
(过去式 ; 形容词 )
2.昨晚十点钟我正在/不在睡觉。
3.(车辆或机器)出故障；坏掉
4.由于；因为breakbrokebrokenbecause of
I was/wasn’t sleeping at 10p.m. last night.
break down课前热身5.地震开始时我正在睡觉。
I was sleeping when the earthquake started.
6. 人们四处奔跑，同时成片的玻璃与砖头纷纷落下来。
People were running in all directions while pieces of glass and bricks were falling down.
7.摔倒 (fall过去式 )
8.当我正在尽力寻找出路时，我突然听到头上有嘈杂声。
As I was trying to find my way out, I suddenly heard some noise above me. fall overfell9. 击中；打；撞(vt) (过) (现分) 10.Millie 在看电视时, Andy进来了。
While/When/As Millie was watching TV, Andy came into the room.
11.hide(过)
12.在马路边
13.Andy进来时Millie 在看电视。
Millie was watching TV when Andy came into the room. hithithitting hid on the side of the road Present continuous tense
be (am/is/are) + verb-ing现在进行时学海拾贝What are you doing now ?What is the boy doing now ?What are they doing now ?I am cleaning the house now .He is swimming now .They are running now .学海拾贝What were you doing
at that moment?What was the boy doing at that moment?What were they doing at that moment?I was cleaning the house.He was swimming.They were running.学海拾贝Past continuous tense
be (was/were) + verb-ing过去进行时学海拾贝1.比较：“I am cleaning the house now.”是_________时态，谓语是 ___ ____
I was cleaning the house just now.这句话用的结构和前一句几乎一样，不过be动词用的是 。be动词的过去式有 和 。 现在进行am cleaningwaswas were过去进行时的概念
过去进行时表示过去某一时刻正在进行的
动作或过去某一段时间内持续进行的动作。学海拾贝它的用法主要有以下四种：
A．表示过去某一时刻正在进行的动作
I was doing my homework at 9p.m. last Sunday.
B.表示过去某一阶段内正在进行的动作
What were you doing during the holiday?
C.表示过去某一动作发生时，另一动作也在同时进行
My mother was cooking while I was doing my homework.
D.过去不断重复的动作
When he worked here, John was always making mistakes.例句：He was playing basketball at this time yesterday.过去进行时的句型结构 ①肯定句的句型结构 ：主语wasdoing其他成分 主语 + was / were + doing +其他成分.He was not/wasn’t playing basketball at this time yesterday.②否定句的结构为： 主语 + was / were + not + doing +其他成分.Was he playing basketball at this time yesterday?③一般疑问句的结构为： Was / Were +主语 + doing +其他成分？
肯定回答： Yes , … was/were .否定回答： No ，… wasn’t / weren’t.否定句：一般疑问句：学海拾贝过去进行时的句式
（1）基本结构：was/were + v-ing
（2）否定式： was/were not + v-ing
was not = wasn’t
were not = weren’t
（3）疑问句：
将 was/were 调到主语前学海拾贝4. 过去进行时常与表示过去的具体时间连用，如：at that time，
at this time yesterday，
at that moment ,
yesterday afternoon,
the whole morning，
at 8p.m.yesterday，
between 8 and 9 last night等。学海拾贝5.过去进行时与一般过去时的区别
过去进行时着重描述当时正在进行的动作，它的特点是：未完成，强调过程；
一般过去时表示一个已完成的动作，表示动作发生过，而且已经结束了，强调结果。
学海拾贝Mary __________?a dress when she cut her finger.
A. made?????????? B. is making
C. was making??? ?D. makes was making表示正在做衣服的过程，如用made则表示这一动作已结束，做衣服的动作已结束与cut her finger就没有联系。2. He _____(write) a letter，then
went to bed． wrotewrote表示动作已结束，做另一件事，如用was writing就与went to bed在逻辑上相矛盾。注：下列几类动词通常不用于进行时。
① 表示状态的动词be；
② 感官动词：feel，hear，sound，see，look，
smell，taste等；
③ 表示思维、心理状态或情感的动词：
believe, forget，know，remember，hope，
wish，want，love，hate，like等；
④ 表示所属关系的动词：belong, have, own，
hold（容纳）等；
⑤ 短暂性动词：decide，stop等。学海拾贝was readingWere doingwas havingwas walkingWerewaiting
was ringing6.when、while和as
1)都有“当……时候”之意，但“while”连接的从句只能是延续性动词的进行时态。即 when/as + 句子(一般过去时/过去进行时)， while + 句子(过去进行时) 2)①主从句都是短暂性动词，用__________时态，用________ 连接，如：
当我到的时候,天开始下雨了。______ I _______(arrive) , it _________ (start) to rain.天开始下雨时我到了。I ________(arrive) ______ it _________ (start) to rain.
一般过去when/asWhen/Aswhen/asarrivedstartedarrivedstarted②主从句都是延续性动词，用__________时态，用________________ 连接，如：
他在打电话时，我在写一封电子邮件。_______________ he _____________(make) a phone call, I _____________(write) an email. 我在写一封电子邮件时，他在打电话。
He _____________(make) a phone call _________________ I ____________(write) an email.
过去进行when/while/asWhen/While/Aswhen/while/aswas makingwas writing was writing was making③主从句一个是短暂性动词另一个是延续性动词时，用________ 连接短暂性动词，用_______连接延续性动词时，
如：我们在吃晚饭时电话铃响了。
________ we __________ (have) dinner, the telephone _________(ring).
电话铃响时我们在吃晚饭。
We __________ (have) dinner _____ the telephone _____(ring).whenwhilewhilewere havingrangwere havingwhenrangWhen arrivedwas gettingWhen/While/As were buildingwas takingfellwhen/while/ aswas makingwas hidingwhenhitWhen/While/Aswere playingran【堂清巩固】
1 My father (have) his breakfast
when I ___________(leave) for school this
morning.
2 Oh, you are here! I (think) you
were in the classroom.
3 Look! Some children ___________(make) a
snowman over there now.
4 The dog (lie) dead in the trees
when they ______(find) it.was havingleftthoughtare makingwas lyingfound5.昨天下午5点你在做什么？
What ________ you _______at five yesterday afternoon?
6.去年夏天的这个时候我正在英国度假。
I _____________ my vocation in England
this time last summer.
?7.昨天晚上迈克来的时候我正在写作业。
I _________my homework _____ Mike _____last night.
?8.安正在看电视时，她父亲回来了。
_____ Ann ____________TV, her father ___ home.
?
9.昨天这个时候你在堆雪人吗？不。我和妈妈在购物。
_______ you ________ (make) a snowman
this time yesterday? No, I_________.
_______ _______ ______ _______ ________ __________. were doingwas spendingwas doing when cameWhile was watching came/gotWere makingwasn’tMy mother and I were shopping
1.损坏；打破vi.
(过去式 ; 形容词 )
2.昨晚十点钟我正在/不在睡觉。
3.(车辆或机器)出故障；坏掉
4.由于；因为breakbrokebrokenbecause of
I was/wasn’t sleeping at 10p.m. last night.
break down课前热身5.地震开始时我正在睡觉。
I was sleeping when the earthquake started.
6. 人们四处奔跑，同时成片的玻璃与砖头纷纷落下来。
People were running in all directions while pieces of glass and bricks were falling down.
7.摔倒 (fall过去式 )
8.当我正在尽力寻找出路时，我突然听到头上有嘈杂声。
As I was trying to find my way out, I suddenly heard some noise above me. fall overfell9. 击中；打；撞(vt) (过) (现分) 10.Millie 在看电视时, Andy进来了。
While/When/As Millie was watching TV, Andy came into the room.
11.hide(过)
12.在马路边
13.Andy进来时Millie 在看电视。
Millie was watching TV when Andy came into the room. hithithitting hid on the side of the road Present continuous tense
be (am/is/are) + verb-ing现在进行时学海拾贝What are you doing now ?What is the boy doing now ?What are they doing now ?I am cleaning the house now .He is swimming now .They are running now .学海拾贝What were you doing
at that moment?What was the boy doing at that moment?What were they doing at that moment?I was cleaning the house.He was swimming.They were running.学海拾贝Past continuous tense
be (was/were) + verb-ing过去进行时学海拾贝1.比较：“I am cleaning the house now.”是_________时态，谓语是 ___ ____
I was cleaning the house just now.这句话用的结构和前一句几乎一样，不过be动词用的是 。be动词的过去式有 和 。 现在进行am cleaningwaswas were过去进行时的概念
过去进行时表示过去某一时刻正在进行的
动作或过去某一段时间内持续进行的动作。学海拾贝它的用法主要有以下四种：
A．表示过去某一时刻正在进行的动作
I was doing my homework at 9p.m. last Sunday.
B.表示过去某一阶段内正在进行的动作
What were you doing during the holiday?
C.表示过去某一动作发生时，另一动作也在同时进行
My mother was cooking while I was doing my homework.
D.过去不断重复的动作
When he worked here, John was always making mistakes.例句：He was playing basketball at this time yesterday.过去进行时的句型结构 ①肯定句的句型结构 ：主语wasdoing其他成分 主语 + was / were + doing +其他成分.He was not/wasn’t playing basketball at this time yesterday.②否定句的结构为： 主语 + was / were + not + doing +其他成分.Was he playing basketball at this time yesterday?③一般疑问句的结构为： Was / Were +主语 + doing +其他成分？
肯定回答： Yes , … was/were .否定回答： No ，… wasn’t / weren’t.否定句：一般疑问句：学海拾贝过去进行时的句式
（1）基本结构：was/were + v-ing
（2）否定式： was/were not + v-ing
was not = wasn’t
were not = weren’t
（3）疑问句：
将 was/were 调到主语前学海拾贝4. 过去进行时常与表示过去的具体时间连用，如：at that time，
at this time yesterday，
at that moment ,
yesterday afternoon,
the whole morning，
at 8p.m.yesterday，
between 8 and 9 last night等。学海拾贝5.过去进行时与一般过去时的区别
过去进行时着重描述当时正在进行的动作，它的特点是：未完成，强调过程；
一般过去时表示一个已完成的动作，表示动作发生过，而且已经结束了，强调结果。
学海拾贝Mary __________?a dress when she cut her finger.
A. made?????????? B. is making
C. was making??? ?D. makes was making表示正在做衣服的过程，如用made则表示这一动作已结束，做衣服的动作已结束与cut her finger就没有联系。2. He _____(write) a letter，then
went to bed． wrotewrote表示动作已结束，做另一件事，如用was writing就与went to bed在逻辑上相矛盾。注：下列几类动词通常不用于进行时。
① 表示状态的动词be；
② 感官动词：feel，hear，sound，see，look，
smell，taste等；
③ 表示思维、心理状态或情感的动词：
believe, forget，know，remember，hope，
wish，want，love，hate，like等；
④ 表示所属关系的动词：belong, have, own，
hold（容纳）等；
⑤ 短暂性动词：decide，stop等。学海拾贝was readingWere doingwas havingwas walkingWerewaiting
was ringing6.when、while和as
1)都有“当……时候”之意，但“while”连接的从句只能是延续性动词的进行时态。即 when/as + 句子(一般过去时/过去进行时)， while + 句子(过去进行时) 2)①主从句都是短暂性动词，用__________时态，用________ 连接，如：
当我到的时候,天开始下雨了。______ I _______(arrive) , it _________ (start) to rain.天开始下雨时我到了。I ________(arrive) ______ it _________ (start) to rain.
一般过去when/asWhen/Aswhen/asarrivedstartedarrivedstarted②主从句都是延续性动词，用__________时态，用________________ 连接，如：
他在打电话时，我在写一封电子邮件。_______________ he _____________(make) a phone call, I _____________(write) an email. 我在写一封电子邮件时，他在打电话。
He _____________(make) a phone call _________________ I ____________(write) an email.
过去进行when/while/asWhen/While/Aswhen/while/aswas makingwas writing was writing was making③主从句一个是短暂性动词另一个是延续性动词时，用________ 连接短暂性动词，用_______连接延续性动词时，
如：我们在吃晚饭时电话铃响了。
________ we __________ (have) dinner, the telephone _________(ring).
电话铃响时我们在吃晚饭。
We __________ (have) dinner _____ the telephone _____(ring).whenwhilewhilewere havingrangwere havingwhenrangWhen arrivedwas gettingWhen/While/As were buildingwas takingfellwhen/while/ aswas makingwas hidingwhenhitWhen/While/Aswere playingran【堂清巩固】
1 My father (have) his breakfast
when I ___________(leave) for school this
morning.
2 Oh, you are here! I (think) you
were in the classroom.
3 Look! Some children ___________(make) a
snowman over there now.
4 The dog (lie) dead in the trees
when they ______(find) it.was havingleftthoughtare makingwas lyingfound5.昨天下午5点你在做什么？
What ________ you _______at five yesterday afternoon?
6.去年夏天的这个时候我正在英国度假。
I _____________ my vocation in England
this time last summer.
?7.昨天晚上迈克来的时候我正在写作业。
I _________my homework _____ Mike _____last night.
?8.安正在看电视时，她父亲回来了。
_____ Ann ____________TV, her father ___ home.
?
9.昨天这个时候你在堆雪人吗？不。我和妈妈在购物。
_______ you ________ (make) a snowman
this time yesterday? No, I_________.
_______ _______ ______ _______ ________ __________. were doingwas spendingwas doing when cameWhile was watching came/gotWere makingwasn’tMy mother and I were shopping