牛津版八年级英语上8A_Unit_8_Natural_disasters_Grammar课件(53张).ppt

Grammar 1.I _ when it started to rain.2.I _ when the earthquake started.3.Outside,people _ in all directions while pieces of glass and bricks _ down.4.I felt nervous and my heart _ _ fast.5.Hours later,as I _ to find way out,I suddenly heard some noise above me.was sleepingwas sleepingwere runningwere fallingwas beatingwas tryingWhat were you doing at 7 oclock last night?I was doing some housework.I was having dinner.ExerciseWhat 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.1.过去进行时主要表示：过去进行时主要表示：2.在过去在过去某一时刻某一时刻正在进行的动作正在进行的动作(a)They were eating breakfast at 7:00 am(b)yesterday.(b)I was writing a letter at this time yesterday.(c)Five minutes ago,Danny was looking out of the window and Suzy was reading a book.Past continuous tense 在过去在过去某段时间某段时间一直在进行的动作一直在进行的动作(a)From 1983 to 1998,he was teaching at Yale.(b)They were building a dam last winter.Past continuous tense 2.过去进行时的句式过去进行时的句式 (1)基本结构：基本结构：was/were+verb-ing (2)否定式：否定式：was/were not+verb-ing was not=wasnt were not=werentI was doing some shopping.People were running wildly.I was not reading.People were not running wildly.(3)疑问句：将疑问句：将 was/were 调到主语前调到主语前 结构为结构为:Was/Were+主语主语+verb-ing?回答：回答：Yes,主语主语+was/were.No,主语主语+was not/wasnt.were not/werent.Was he running?Yes,he was./No,he wasnt.Were they running?Yes,they were./No,they werent.What was the girl doing just now?She was running just now.What was the boy doing just now?He was jumping just now.What was the bear doing just now?It was skiing just now.It was snowing this morning.Do you know what Sandy was doing early this morning?What happened to her?Complete the conversation below.A snowstorm hit Sunshine TownMr.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 readingwerewas havingdoingMillie:I _(walk)to the bus stop.Sandy,I saw you 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 ringingWerewaitingwas walking一、用所给动词的适当形式填空。一、用所给动词的适当形式填空。It was ten oclock on Sunday morning.The family were all 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 sittingwere talkinglaughing was readingwas playing QuizPast continuous tense with while,when and as1.I was sleeping when it started to rain.2.2.I was sleeping when the earthquake3.started.Look at the following sentences carefully.Pay attention to the colored parts.3.Outside,people were running in all directions while pieces of glass and bricks were falling down.4.Hours later,as I was trying to find way out,I suddenly heard some noise above me.1.when,while 和和 as 这三个词都有这三个词都有2.“当当时候时候”的意思。的意思。3.There were fewer sandstorms when my grandparents were young.4.我祖父母年轻时沙尘暴要少些。我祖父母年轻时沙尘暴要少些。Past continuous tense with while,when and asWhile Mille was watching TV,her mum was sleeping.米莉在看电视时，妈妈在睡觉。米莉在看电视时，妈妈在睡觉。I saw a traffic accident as I was riding to school this morning.今天早晨我骑自行车时看到一起交通事故。今天早晨我骑自行车时看到一起交通事故。2.when 和和 as 既可以指某一点时间，既可以指某一点时间，也可以指某一段时间，其从句谓语动也可以指某一段时间，其从句谓语动词表示的动作既可以是瞬间性的，也词表示的动作既可以是瞬间性的，也可以是延续性的；可以是延续性的；while指一段时间，指一段时间，从句中的谓语动词必须是延续性的。从句中的谓语动词必须是延续性的。即：指一段时间时即：指一段时间时when,while 和和as都都可用；指一点时间时，只能用可用；指一点时间时，只能用when或或as，不能用，不能用while。试比较：试比较：1.When/As he woke up,it was eight2.oclock.3.2.While he woke up,it was eight 4.oclock.5.3.When/While/As I was waiting for a 6.bus,I met her.3.当当 while,when 和和 as 放在句首时，放在句首时，两个句子应用逗号隔开。两个句子应用逗号隔开。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.Playing in the snowLook at the picture on page 98,and describe what the students were doing when Simon arrived.Use the words in brackets to help you.1._ Simon _(arrive),Amy _(get)some snow from the ground.2._ Suzy and Kitty _(build)a snowman,Millie _(take)photos.3.Daniel _(fall)over _ he _(make)a big snowball.Whenarrivedwas gettingWhen/While/As was building was takingfellwhen/while/aswas making4.Peter _(hide)behind a tree _ a snowball _ (hit)him.5._ Millie and her classmates _(play)in the snow,Andy _(run)towards them.was hidingwhenWhen/While/Aswere playinghitran1.-What were you doing this time 2.yesterday?-I _ on the grass and drawing a picture.2011北京北京 A.sit B.sat C.am sittingD.was sittingI.Multiple choice.2.When I came back yesterday evening,my brother _ his homework.2011长沙长沙 A.is doing B.has done C.was doing 3.-I called you at 4:00 yesterday afternoon,but no one answered.-Sorry,I _ with my friends at that time.2011河南河南 A.swim B.swam C.will swim D.was swimming4.-Amy,I called you yesterday evening,but nobody answered the phone.-Oh,I _ a walk with my mother at that time.2011宁波宁波 A.take B.took C.am taking D.was taking5.He _ when the UFO arrived.He didnt wake until the UFO disappeared.2011枣庄枣庄 A.slept B.was sleeping C.was doing homework D.was singingII.Fill in the blanks.People _(run)wildly while pieces of bricks _(fall)down.We should prevent hunters form _(catch)wild animals.Natural disasters may _(cause)by bad weather.Our maths teacher warned us _(not copy)others answers.The temperature _(drop)a lot today.were running were fallingcatchingcausenot to copydrops1.过去进行时主要表示：过去进行时主要表示：在过去某一时刻正在进行的动作在过去某一时刻正在进行的动作 在过去某段时间一直在进行的动作在过去某段时间一直在进行的动作2.过去进行时的句式过去进行时的句式 (1)基本结构：基本结构：was/were+verb-ing (2)否定式：否定式：was/were not+verb-ing (3)疑问句：将疑问句：将 was/were 调到主语前调到主语前3.连词连词 while,when and as 与与过去进行时过去进行时Translation 1.地震开始的时候，很多人正在地震开始的时候，很多人正在床上床上2.睡觉睡觉。3.2.我昨天这个时候正在搜索因特网。我昨天这个时候正在搜索因特网。4.3.老师老师进教室时，一些学生进教室时，一些学生正在小声正在小声5.说话说话。6.4.当当他们在一家咖啡店里闲聊时他们在一家咖啡店里闲聊时，突，突7.然然听到一声像打雷似的巨响。听到一声像打雷似的巨响。1.To preview Integrated skills on 2.Pages 99-1003.2.To preview Study skills on Page 4.101