2021学年Section A课前预习课件ppt

这是一份2021学年Section A课前预习课件ppt，文件包含公开课Unit12LifeisfulloftheunexpectedSectionA2dGrammarfocus-4cpptx、Unit12SectionA2d听力wav、Unit12Lifeisfulloftheunexpected-1mp4、WHEREISmp4、过去完成时一24_标清_clipmp4等5份课件配套教学资源，其中PPT共37页， 欢迎下载使用。

What happened t the by？
D yu ever be late fr schl?What happened?
I verslept.
The bus was t crwded t get n.
There was an accident when I was n my way t schl.
I frgt t take my schlbag!
I left my schlwrk in my huse! I had t g back and get it !
I thught it was Saturday, but actually it was Friday!
S, dn’t be late next time, r the teacher will punish yu.
Lk at the picture.
What can yu see in the picture?Can yu guess what the dialgue is abut?
Is smene late fr schl?
Des smene get up late?
Read 2d carefully and answer the questins.
1.Why was Kevin late fr class?2.What did he d that mrning? 3.Did he catch the bus?4.Hw did he get t schl?
Because his alarm clck didn’t g ff. He kept sleeping, and when he wke up it was already 8:00 a.m.!
He quickly put n sme clthes and rushed ut the dr even withut brushing his teeth r washing his face.
N. Befre he gt t the bus stp, the bus had already left.
Carl’s dad saw him, and gave him a lift in his car.
give sb. a lift 捎某人一程
g ff 发出响声
1.My alarm clck didn’t g ff.2.I wke up.　　　　　　 　　　　　　 　　　　　　 　　　　　　 　　　　　　 　　　　　　
3.I quickly put n sme clthes and rushed ut f the dr withut breakfast.
4.The bus had left.
5.I gt t the bus statin.
6.I started walking.
7.Carl’s dad gave me a lift.
8.I gt t schl and I was nly five minutes late fr class.
Read again and write the events in the crrect rder.
Matt: Why were yu late fr class tday, Kevin?Kevin: My alarm clck didn’t g ff! I kept sleeping, and when I wke up it was already 8:00 a.m.!Matt: Oh, n!Kevin: S I just quickly put n sme clthes and rushed ut the dr.Matt: Yu didn’t eat breakfast?Kevin: N, I didn’t even brush my teeth r wash my face! But befre I gt t the bus stp, the bus had already left.Matt: Then hw did yu get here?Kevin: Luckily, Carl’s dad saw me n the street and gave me a lift in his car.Matt: Well, at least by the time yu gt t schl, yu were nly five minutes late fr class.
Listen and repeat.
1.My alarm clck didn’t g ff. 我的闹钟没有响。
g ff (警报器等)突然发出巨响g ff还有“中断，失去对……的兴趣”的意思，也可表示(食物)变坏，变质，(灯)熄灭，(水，电)断掉，(质量)下降。
例： My alarm clck _________at 6: 00 every mrning.我的闹钟每天早上6: 00 响。The siren went ff suddenly and the rbbers drpped their things and dashed ff. ________________________________
突然警笛大作，盗贼丢下他们的东西撒腿便跑。
Language pints
2.S I just quickly put n sme clthes and rushed ut the dr.
put n 意为“穿上；戴上”，用于穿衣服、穿鞋、戴帽子、戴眼镜等，强调动作。put n是动副短语，强调动作，反义短语是take ff。其宾语若是代词，代词要放在put与n中间。【拓展】put n的其他用法：1）增加（体重）；发胖2）上演；举办
例： 外面很冷，请穿上暖和的衣服。________________________________你外出时最好是穿上它。_______________________________
It’s cld utside. Please put n yur warm clthes.
Yu’d better put it n when yu g ut.
【辨析】put n, dress, wear
强调穿的动作，宾语是物，反义词组为take ff。
既可表动作也可表状态，既可作及物动词也可作不及物动词，但多接人作宾语。
强调穿的状态，以物为宾语，可用于进行时。
3.S I just quickly put n sme clthes and rushed ut the dr.
rush ut 冲出，奔出rush用作动词，意为“冲，奔，赶紧”。常用短语rush t d sth.意为“赶紧做某事”。rush还可用作名词，意为“匆忙，忙碌，争购”。常用短语：rush hur“高峰时间”，the Christmas rush “圣诞节前的忙碌”。
例： 亨利冲出房间，消失在了雨中。________________________________She's always rushing t finish first._______________________________
Henry rushed ut the rm and disappeared in the rain.
她总是赶着第一个完成。
4.Luckily, Carl’s dad saw me n the street and gave me a lift in his car.
luckily是副词,意思是“幸运的是”, 反义词是unluckily, 意为“不幸地”。【拓展】　(1)lucky adj.“幸运的”,既可以作表语,也可以作定语, unlucky“不幸的”。(2)luck n.“运气”。 gd luck表示“好运”, 用于祝福某人。bad luck表示“真糟糕,运气不好”。
例： ________________________________那是一次严重的事故,但是所幸没有人受伤。有些人认为十三是个不幸运的数字。________________________________
It was a bad accident, but luckily, nbdy gt hurt.
Sme peple think thirteen is an unlucky number.
give sb. a lift 是动词短语，意为 “捎某人一程”, 相当于give sb. a ride / give a ride t sb/ffer sb. a ride. 类似的还有give sb. a hand 意为“给予某人帮助”，相当于help sb. 。
例： ________________________________请问你能否捎我一程？Jim gave me a lift n my way hme yesterday.________________________________
Culd yu give me a lift, please?
吉姆昨天在我回家的路上捎了我一程。
常考的有关give的短语：give sth.t sb.把某物给某人give in交上；屈服；让步give up放弃　give ut分发；散发give away泄露；暴露；赠送
by the time ... alarm clck g ffkeep ding sth. wake up put n sme clthes rush ut f the dr give ... a lift at least be five minutes late fr class
在……以前闹钟(闹钟)发出响声一直做某事醒来穿上衣服冲出门外捎……一程至少上课迟到5分钟
Rle-play the cnversatin between Matt and Kevin.Try nt t lk at yur bk.
Matt: Why were yu late : My alarm clck ...! I !Matt: Oh, n!Kevin: S I just : Yu didn’t eat breakfast?Kevin: N, I...! But : Then : Luckily, : Well, at least...
根据课本内容，完成下列句子。
1)当我到达学校的时候，我才意识到我把书包忘在家里了。 _______ I gt t schl, I realized that I ______ ______ my backpack at hme. 2)到我返回学校的时候，铃声已经响过了。 _____ _____ _____ I gt back t schl, the bell ______ _______.3)我到达公共汽车站之前， 汽车已经离开了。 Befre I _____ _____ the bus stp, the bus ____ _______ _____.
By the time
had rung
already left
由when, by the time, befre等引导时间状语从句时，若描述发生在过去的事，主句常用过去完成时(had + 过去分词)表示动作发生在过去的过去。
4)我决定先买一杯咖啡，然后再去办公室。 I ______ ______ ______ g up t my ffice when I decided t get a cffee first.5)就在我和别的工作人员一起排队等候的时候，听到了一个巨大的声响。 As I ______ _______ ______ ______ with the ther ffice wrkers, I ______ _____ _____ ______.
was abut t
was waiting in line
heard a lud sund
be abut t 打算做某事
be abut t d, be ding等表示即将或正在做某事时，常用when/as引导从句表示突然发生的动作。
Grammar Fcus
1. 过去完成时的构成：_____+___________________________2. 过去完成时表示： __________________________________3. 过去完成时常与 ___________________________等引导的时间状语连用。
动词的过去分词形式(V-ed)
when, befre, by the time, by
过去某一时刻或动作之前已经发生或完成的动作。
Past Perfect Tense现在完成时
The bell rang.
By the time _______________, the bell _________.
Mary gt t schl.
过去完成时以一个过去的时间点为参照，表示该动作发生在“过去的过去”。
The teacher started teaching in the classrm.
When _________________________, ___________________________________________.
the teacher had started teaching in the classrm.
She gt int the classrm.
The bus left.
Befre _______________________________, ___________________________________________.
the bus had already left.
She arrived at the bus stp.
过去完成时的具体用法:
(1)表示一动作或状态在过去某一时间或动作之前已经完成，即发生在“过去的过去”。这个过去的时间可以用by, befre等介词短语或者一个时间状语从句来表示。
例：我醒来时，雨已经停了。 When I wke up, it had stpped raining.
(2)表示某一动作或状态在过去某时之前已经开始，一直延续到这一过去的时间。常用表延续的时间状语如by the end f+过去的时间点， by the time +从句等。
例：到去年年底，她已经在这家工厂工作20年了。By the end f last year, she had wrked in the factry fr twenty years.
过去完成时的判断依据:
(1)由时间状语来判定：① by+过去的时间点（从句用by+时间点,主句用现在完成时。）例：到昨天9点钟时，她已经读完了这本书。She had finished reading the bk by 9 ’clck yesterday.
② by the end f+过去的时间点 “到……结束时”（+过去的时间点，主句用过去完成时） 例：到上个月月底，我们已经完成了所有工作。We had cmpleted all the wrk by the end f last mnth.
注意：by the end f+将来的时间点， 主句用将来完成时；By the end f next mnth, I will have finished my new bk. 到下个月结束时我将要完成我的新书。
③ by the time “到……时候(为止)”，是一个介词短语，在句中常起到连词的作用，引导时间状语从句。如果从句中的谓语动词是一般过去式，那么主句的谓语动词通常用过去完成时，表示“截止到从句动作发生时，主句动作已经完成，即过去的过去”。例：By the time yu came back, I had finished this bk. 你回来时我已经把这本书看完了。
注意：如果从句中的谓语动词为一般现在时或现在完成时，那么从句中的谓语动词常用将来完成时，表示“截止到将来的某一时刻为止，主句动作将已完成。”By the time I graduate next year, I will have lived here fr five years. 到明年毕业时，我将已经在这待了五年了。
①含有宾语从句的复合句中：当主句为一般过去时，且从句的动作先于主句的动作发生时，从句要用过去完成时。如在tld，said，knew，heard，thught等动词后的宾语从句中。例：她说她以前已看过这部电影了。 She said that she had seen the film befre.
(2)由“过去的过去”来判定
②含有状语从句的复合句中，主、从句的动作发生有先后关系，动作在前的要用过去完成时，动作在后的要用一般过去时。例: 我到达车站时，火车已经离开了。 When I gt t the statin, the train had already left.
③表示意向的动词，如hpe，wish，expect，think，intend，mean，suppse等，用过去完成时表示“原本……，但未能……”。 例：我们本希望你能来，但你没来。 We had hped that yu wuld cme,but yu didn’t.
过去完成时及句型转换口诀：过去的过去之动作，用过去完成时来掌舵。构成“had＋过去分词”结构，切记had是助动词。没错，had 后加nt 即否定，had提句首有把握，过去分词稳住不用变，上述内容记清好处多。
【运用】按要求改写句子。 I had sld the ticket when she came.（改为否定句） __________________________________2. By the time he gt t the airprt, the plane had taken ff. (改为一般疑问句) __________________________________________________?3. Jack didn’t g t the cinema because he had seen the film.（对划线部分提问）__________________________________4. We cked the dumplings. We ate them up. （用过去完成时连接两句） __________________________________
I had nt sld the ticket when she came.
Had the plane taken ff by the time he gt t the airprt
Why didn’t Jack g t the cinema?
After we had cked the dumplings, we ate them up.
【中考链接】1. Since we began t use the Internet, ur lives _______ a lt.( 江西)  A. change      B. had changed C. will change   D. have changed 2. —Lk at the blue sky! The rain ________. —Let’s g ut fr a walk.   (江苏泰州) A. stps                       B. will stp　  C. has stpped　　    D. had stpped 3. My parents ________ t wrk by the time I ________ up.   ( 四川巴中) A. began; get      B. had begun; had gt  C. had begun; gt   
Make sentences using by the time r befre.
1. Tim went int the bathrm. Mary gt up. By the time Mary gt up, Tim had already gne int the bathrm.2. The cffee became cld. I put cream (n. 奶油) in the cffee. _________________________________ _________________________________3. The teacher cllected the math hmewrk. I gt t schl. __________________________________ __________________________________
Befre I put cream in the cffee, the cffee had becme cld.
By the time I gt t schl, the teacher had cllected the math hmewrk.
4. I cmpleted the wrk fr my bss. The wrkday (n. 工作日) ended. __________________________________ __________________________________5. The mvie started. I arrived at the cinema. _________________________________6. My mther finished making the apple pie (n. 果馅派). I gt hme frm my language curse. __________________________________ __________________________________
I had cmpleted the wrk fr my bss befre the wrkday ended.
The mvie had started, befre I arrived at the cinema.
By the time I gt hme frm my language curse, my mther had finished making the apple pie.
Fill in the blanks with the crrect frms f the wrds in the bx.
rush ut, frget, arrive at, g int, shw up (赶到；露面), find ut
1. By the time I arrived at the party, everyne else _____ already __________.2. When he put the ndles int a bwl, he realized he ____________ t add the green beans (n. 豆).3. By the time my mther came back frm the market (n. 市场), I ____ already __________ f the dr t g t my pian lessn.
had frgtten
4. Befre she gt t the airprt, she _________ ___ abut the earthquake. 5. When she _________ the mvie theater, she remembered she had frgtten t feed her dg.6. Befre she gt a chance t say gdbye, he ____________ the building.
had gne int