Grade8Unit3SectionB课件

1、 What were you doing What were you doing when the UFO arrived when the UFO arrived？ Section B Section B By Miss Huang Grade8 Language goals:Grasp the use of The Past Continuous TenseDifferences between when and whileRevise the expressions:get out of run awayshout call the policeanywherewalk around s

2、ay to sbWhat happened (to sb)?think aboutwriting / cleaning the blackboard1?Guessing GameGuessing Game: What was he/ she doing at 4:15 yesterday afternoon?reading /doing homework1?Guessing GameGuessing Game: What was he/ she doing at 4:15 yesterday afternoon?writing /reading2?Guessing GameGuessing G

3、ame: What were they doing at 4:15 yesterday afternoon?doing homework/thinking3?Guessing GameGuessing Game: What was he/ she doing at that time?setting the desks /sweeping the floor4?Guessing GameGuessing Game: What was he/ she doing at that time?running/playing football5?Guessing GameGuessing Game:

4、What was he doing?running/riding a house6?Guessing GameGuessing Game: What was he doing?Think and compare. The boy was walking down the street when a UFO landed. While the boy was walking down the street, the UFO landed While the girl was shopping, the alien got out. The girl was shopping when the a

5、lien got out.I know:I know:1 .while 当时候(后面跟的动作延续,多用进行时态)2. when 当时候(后面跟的动作不延续）Lets try to doComplete the following sentences with “when or “while”1.The boy was walking down the street_ a UFO landed.2.The girl was shopping_ she saw the alien get out.3._the alien was buying a souvenir, the girl called

6、 the police.4._the alien was visiting the museum, the boy called the TV station.whenwhenWhileWhileJay _ _ _ _ when I saw him.was riding a bicycle He _ _ in the lake while I was walking by the lake. was swimmingThey _ _ _when I left school.wereplayingbasketballWhile her mother _ _,she knocked at(敲门 )

7、the door.was cookingNamesActivities they were doing What were you doing when you heard the news?Make a survey Ask and answer in pairs Where were you when you heard the news? What were you doing ? 1 in a river swimming 2 in a park playing basketball 3 in a shop doing some shopping 4 at home cooking 5

8、 at home watching TV 6 at home doing my homework -I was calling my friend at home.- Where were you at 7:30 last Sunday? And what were you doing ?Task OneInterview your partnerTimeWhereWhat7:30amat homeCalling a friend 9:00am 12:30am4:00pm8:00pm How was the last weekend?Report He/She was calling his

9、friend at home at 7:30 last Sunday?1、When可指时间点，又可指时间段，从句中可用延续性动词，也可用非延续性动词。 While总是指一个时间段，从句中必须用延续性动词。 2、 when/while写过去发生的事情。 3、统一时态：主句过去式，统一时态：主句过去式， 从句也是过去式从句也是过去式。 Summary Fill with “While” or “When”1._ May was talking on the phone, her sister walked in. 2._ Rita bought her new dog, it was wearin

10、g a little coat.3._ I saw Carlos, he was wearing a green shirt.4._ I was dancing, he was singing loudly.Exercise 1ExercisesChoose “when” or “while” to fill in the blanks. (1)I was walking in the street _ the accident happened. (2)_ you have a meeting, you should turned off your mobile phone. (3)_ yo

11、u have PE class, you should wear sports shoes. (4)_ I was doing my homework, the telephone rang. (5)_ it was raining, the plane took off. (6)_ the teacher was speaking to class, Nick stood up suddenly.1. I (was sleeping/slept) when the phone rang.2.Alan was doing housework when I (was arriving/arrived.)3.While the plane (was taking off/took off), the pilot didnt talk at all.4.I was watching TV when my mother (was turning/turned )it off. Exercise 2Choose the correct the verb formsPlease remember Dont touch it, While the dog is