Unit 8 Grammar课件牛津译林版八年级上册英语.pptx

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1、Unit 8 Natural disasters,Grammar,Grammar A,1. 过去进行时主要表示： 在过去某一时刻正在进行的动作 They were eating breakfast at 7:00 a.m. yesterday.(b) I was writing a letter at this time yesterday. 在过去某段时间一直在进行的动作(a) From 6:40 a.m. to 7:20 a.m., we were reading English today.(b) He was playing computer games until 12 oclock

2、 yesterday evening.,Past continuous tense,2. 过去进行时的句式(1) 基本结构：was / were + verb-inge.g. I was doing some shopping. People were running wildly.(2) 否定式：was / were not + verb-ing was not = wasnt were not = werente.g. I was not reading. People were not running wildly.(3) 疑问句：将 was / were 调到主语前e.g. -Was

3、he running? -Yes, he was. / No, he wasnt. -Were they running? -Yes, they were. / No, they werent.,Watch, read and answer,What were you doing at 7 oclock last night?,I was doing some housework.,I was having dinner.,What were you doing from 7 to 9 p.m. yesterday?,I was doing my homework.,I was watchin

4、g 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.,A snowstorm hit Sunshine Town. Mr Wu is asking the students about it. Complete their conversation with the correct forms o

5、f the verbs in brackets.,Mr. Wu: What a terrible snowstorm! It started at about seven this morning. I _ (read) the newspaper then. What _ you _ (do), Simon?Simon: I _ (have) breakfast.Mr. Wu: What about you, Millie?,was reading,were doing,was having,Millie: I _ (walk) to the bus stop. Sandy, I saw y

6、ou and your parents standing on the side of the road. _ you _ (wait) for a taxi?Sandy: Yes. My dads car broke down because of the cold weather. He _ (ring) someone to come and help when you saw us.,was walking,Were waiting,was ringing,Practice,It was ten oclock on Sunday morning. The family were all

7、 in the garden. Mr King and Mrs King _ (sit) under the tree, and they _ (talk) and _ (laugh). Their son Jack _ (read) an interesting book. Their daughter Wendy _ (play) with their dog. Everyone was happy.,were sitting,were talking,laughing,was reading,was playing,Grammar B,while , when and as,1. whe

8、n, while 和 as 这三个词都有“当时候”的意思。e.g. I was sleeping when the earthquake started. As I was trying to find my way out, I suddenly heard some noise above me. People were running in all directions while pieces of glass and bricks were falling down.,2. 用while, when, as这三个连词连接时间状语从句时，从句和主句的谓语动词时态有规定：1) 当短动作和

9、长动作同时发生，我们用过去进行时表示长动作，用一般过去时表示短动作2) 两个都是长动作。用while连接从句e.g. People were running while bricks were falling down.3) 主句是短动作，用while, as, when连接从句(长动作)e.g. While/As/When Millie was watching TV, Andy came into the room.4) 主句是长动作，用when连接从句(短动作)e.g. I was sleeping when the earth started to shake.5) 两个都是短动作，常

10、用as连接从句，强调同时发生e.g. As Millie sat down, Andy came in.,3. 当 while , when 和 as 放在句首时，两个句子应用逗号隔开。放在主句后面时，不必用逗号隔开。e.g. When the teacher came in, we were talking. While the pig was dancing, the rabbit was jumping. As the two men were leaving, a message arrived.,Practice,1. I _ (sleep) when it started to r

11、ain.2. I was sleeping _ the earthquake started.3. Outside, people _ (run) in all directions _ pieces of glass and bricks _ (fall) down.4. Hours later, _ I _ (try) to find way out, I suddenly heard some noise above me.,was sleeping,when,were running,while,were falling,when/while/as,was trying,Some Cl

12、ass 1, Grade 8 students went to play in the snow. Complete the sentences with the correct forms of the verbs in brackets. Use when, while or as to connect the sentences.,1. _ Simon _ (arrive), Amy _ (get) some snow from the ground.2. _ Suzy and Kitty _ (build) a snowman, Millie _ (take) photos.,When

13、,arrived,was getting,While,were building,was taking,3. Daniel _ (fall) over _ he _ (make) a big snowball.4. Peter _ (hide) behind a tree _ a snowball _ (hit) him.5. _ Millie and her classmates _ (play) in the snow, Andy _ (run) towards them.,fell,when/while/as,was making,was hiding,when,hit,While,we

14、re playing,was running,Exercises,1. - What were you doing this time yesterday? - I _ on the grass and drawing a picture. A. sit B. sat C. am sittingD. was sitting2. When I came back yesterday evening, my brother _ his homework. A. is doing B. has done C. was doing 3. - I called you at 4:00 yesterday

15、 afternoon, but no one answered. - Sorry, I _ with my friends at that time. A. swim B. swam C. will swim D. was swimming,4. - Amy, I called you yesterday evening, but nobody answered the phone. - Oh, I _ a walk with my mother at that time. A. take B. took C. am taking D. was taking5. He _ when the U

16、FO arrived. He didnt wake until the UFO disappeared. A. slept B. was sleeping C. was doing homework D. was singing6. _ I took the brush away, I dropped some paint _ the paper. A. As; onto B. While; on C. When; in D. Since; on,1. 上周这时候你正在干嘛？ _2. 当开始下雨的时候，我正和朋友们在操场上打篮球。 _3. 当我妈妈在做晚饭的时候，我在卧室做作业。 _4. 当她下公交车时，我看到了她。 _,What were you doing at this moment last week?,I was playing basketball with my friends in the playground when it started to rain.,I was doing my homework in the bedroom while my mother was cooking supper.,I saw her as/when/while she was getting off the bus.,Thank you!,