九年级英语下册unit10SectionA.ppt

By the time 到到的时候的时候By the time I got home,By the time I came in,By the time I got to school,By the time the bell rang,By the time I got up.I got homenow9:00pm8:00pmMy little brother went to bedBy the time I got home,my little brother had gone to bed I got to schoolnow8:158:00amThe teacher came into the classroomBy the time I got to school,the teacher had come into the classroomBy the time she got outside,the bus had already left.By the time she got outside,the bus had already left.她出去的时候她出去的时候,公共汽车已经开走了公共汽车已经开走了.by the time 意思是意思是“到到的时候的时候”,相当于相当于 when,后接过去时的句子后接过去时的句子时时,主语的谓语动词用过去完成时态主语的谓语动词用过去完成时态.The Past Perfect Tense过去完成时1.过去完成时的构成2.助动词 had(用于各种人称和数用于各种人称和数)+过去分过去分词词 2.过去完成时态的含义:主要是表示在过去某个时间,或是动作之前已经发生或完成的动作.也就是：过去的过去过去的过去.Questions:1.What do you usually do in the morning before school?2.Do you like mornings?Why or why not?What do you usually do in the morning before school?brush my teethWhat do you usually do in the morning before school?take a showerWhat do you usually do in the morning before school?have a breakfastWhat do you usually do in the morning before school?go to schoolTinas morningShe overslept Someone was taking a shower The bus left She had to run to school quicklyShe left her backpack at home 1b1.By the time I got up,my brother2.already in the shower.3.2.By the time I got outside,the bus4.already .5.3.When I got to school,I realized6.I my backpack at home.gottenhadhadhadleftleftPair work:1c Look at the pictures below and tell what happened to Tina this morning.Tinas bad morning Tina overslept yesterday.By the time she got up,her brother had already gotten in the shower.And by the time she got outside,the bus had already left.So she had to run to school.When she got to school,she realized she had left her backpack at home.2aNumber the pictures 1-4 in the correct order.Number the pictures 1-4 in the correct order.1234 getgotgotten realizerealizedrealized leaveleftleft ringrangrung walkwalkedwalked startstartedstarted 2b1.When I (get home),I (realize)I (leave)my keys in the backpack.2.By the time I (get)back to school,the bell (ring).3.By the time I (walk)into class,the teacher (start)teaching already.got homegothad rungwalkedhad startedrealizedhad left2c Pair workMake up an ending for the story and share it with the rest of the class.The teacher looked at Tina and asked her to sit back her seat.After class,the teacher asked Tina to come to her office and why she was late.Tina told her the whole story this morning.The teacher asked her to get up earlier and not to be late for class.过去完成时态的用法：1、表示过去的过去，通常由、表示过去的过去，通常由when或或by引引导的短语或者从句做时间状语或时间状导的短语或者从句做时间状语或时间状语从句语从句 By the end of last year,I had learned about one thousand English words By the time he was twenty,he had won about ten medals When I got there,they had already left2、常用在宾语从句中、常用在宾语从句中 He told me he had already finished his homework I realized he had fooled me again3、体现在上下文中、体现在上下文中 I didnt go to the movies yesterday because I had seen it twice本课出现的主要动词的过去式和过去分词本课出现的主要动词的过去式和过去分词ring rang rungget got gottengo went goneleave left leftstart started startedbe was/were beentake took takenrun ran runwake woke wokenHOMEWORK1.Revise when to use the Past Perfect tense and the verb structure.2.Make sentences using each form of the verbs below:Leave walk start oversleep ring 3.Review the Grammar Focus.gothadhadgottenleftran When I got to school,I realized that I had left my backpack at home.构成：过去完成时由助动词构成：过去完成时由助动词hadhad+过去分词构成。过去分词构成。用法：过去完成时表示在过去某一时间或动作之前已经发用法：过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作。它表示动作发生的时间是过去的过去。生或完成了的动作。它表示动作发生的时间是过去的过去。常与常与byby、beforebefore等构成的短语连用。等构成的短语连用。They had already had breakfast before they arrived at the hotel.在他们到达旅馆之前，他们已经吃早饭了。在他们到达旅馆之前，他们已经吃早饭了。He said that he had never seen such a beautiful bird before.他说他以前从来没有看过这样美丽的鸟。他说他以前从来没有看过这样美丽的鸟。When I _(get home),I _(realize)I _(leave)my keys in the backpack.By the time I _(get)back to school,the bell _(ring).By the time I _(walk)into class,the teacher _(start)teaching already.got homerealizedhad leftgothad rungwalkedhad started1.We _(learn)two thousands words by the 1.We _(learn)two thousands words by the end of last year.end of last year.3.When we _(arrive)at the station,they 3.When we _(arrive)at the station,they _(wait)for more than twenty minutes._(wait)for more than twenty minutes.had learnedarrivedhad waited2.I _him when I was a student.2.I _him when I was a student.had known4.One of the men couldnt move,because he _ 4.One of the men couldnt move,because he _ (break)his legs.(break)his legs.had broken Write down Tinas whole morning.Write down Tinas whole morning.Write down your unlucky story.go off (铃铃)响响ran off 跑步离开跑步离开came by 路过路过give sb.a ride 捎某人一程捎某人一程make it 成功成功Have you ever overslept?Have you ever been late for school?Have you ever forgotten to bring your homework to school?Have you ever locked your keys in your house?Have you ever forgotten a relatives birthday?Have you ever forgotten a doctors or dentists appointment?blow away 刮走刮走 get back 拿回拿回 step on 踩到踩到上上 dirty 脏的脏的