Unit 12 Section A (Grammar Focus-4c)課件 英語人教版（新目標(biāo)）九年級上冊

1、Section A (-Grammar Focus4c)Unit 12 Life is full of the unexpected.1)當(dāng)我到達(dá)學(xué)校的時候，我才意識到我把書包忘在家里了。 _ I got to school, I realized that I _ _ my backpack at home. 2)到我返回學(xué)校的時候，鈴聲已經(jīng)響過了。 _ _ _ I got back to school, the bell _ _.WhenhadleftBy the time had rung根據(jù)漢語提示完成句子。Grammar Focus3)我到達(dá)公共汽車站之前， 汽車已經(jīng)離開了。 Bef

2、ore I _ _ the bus stop, the bus _ _ _.4)我決定先買一杯咖啡，然后再去辦公室。 I _ _ _ go up to my office when I decided to get a coffee first.5)就在我和別的工作人員一起排隊(duì)等候的時候，聽到了一個巨大的聲響。 As I _ _ _ _ with other officeworkers, I_ _ _ _.got to hadalready left was about toGrammar Focuswas waiting in line heard a loud sound過去完成時的用法概

3、念：過去完成時表示某一動作或狀態(tài)在過去某一時間或動作之前已經(jīng)發(fā)生或完成，也可以指過去的動作延續(xù)到過去的某一時刻，它表示發(fā)生的時間是“過去的過去”。過去的過去過去某時現(xiàn)在將來過去完成時Grammar1. 過去完成時的構(gòu)成：_+_2. 過去完成時表示： _3. 過去完成時常與_等引導(dǎo)的時間狀語連用。had過去分詞when, before, by the time 過去某一時刻或動作之前已經(jīng)發(fā)生或完成的動作。Grammar關(guān)于過去完成時的幾個考點(diǎn)：1.過去完成時的句型轉(zhuǎn)換。變否定句時，在had后加not，一般疑問句把had提到句首。2.過去完成時的判斷依據(jù)。過去完成時是一個相對的時態(tài)。只有和過去的某

4、個時間或動作相比較時才會用到。常見的時間狀語(從句)由by，before，when，by the end of，by the time，until等引導(dǎo)。Grammar過去完成時還可表示過去某一時刻之前發(fā)生的動作或狀態(tài)持續(xù)到過去某個時間，常與“for時間段”或“since時間點(diǎn)”連用。e.g. When Jack arrived，Mary had been away for almost an hour.當(dāng)杰克到時，瑪麗已經(jīng)離開差不多一個小時了。Grammar過去完成時經(jīng)常用于主句為一般過去時的賓語從句中，表示從句動作先于主句動作發(fā)生，像在told，said，knew，heard，though

5、t等動詞后的賓語從句中。 在表示過去概念的句子中，常出現(xiàn)與完成時態(tài)連用的詞，如：already，yet，since，for，ever，never及表次數(shù)的詞，此時句子常用過去完成時。e.g. I met Jim in the street yesterday. We hadnt seen each other since he went to Beijing.我昨天在街上碰見了吉姆。自從他去北京后，我們彼此沒有見過面。Grammar過去完成時及句型轉(zhuǎn)換口訣：過去的過去之動作，用過去完成時來掌舵。構(gòu)成“had過去分詞”結(jié)構(gòu)，切記had是助動詞。沒錯，had 后加not 即否定，had提句首有把握

6、，過去分詞穩(wěn)住不用變，上述內(nèi)容記清好處多。Grammar1Tim went into the bathroom.Mary got up. By the time Mary got up,Tim had already gone into the bathroom. 2The coffee became cold.I put cream in the coffee._3The teacher collected the math homework.I got to school._4I completed the work for my boss.The workday ended._4a Ma

7、ke sentences using by the time or before.By the time I put cream in the coffee，it had become cold.Before I got to school，the teacher had collected the math homework.Before the workday ended，I had completed the work for my boss.5The movie started.I arrived at the cinema._6My mother finished making th

8、e apple pie.I got home from my language course._By the time I arrived at the cinema，the movie had started.By the time I got home from my language course，my mother had finished making the apple pie.4a Make sentences using by the time or before.4b Fill in the blanks with the correct forms of the words

9、 in the box.1By the time I arrived at the party，everyone else _ already _.2When he put the noodles into a bowl，he realized he _ to add the green beans.rush outforgetarrive at go intoshow up find outhadshowed uphad forgottenshow up出現(xiàn)；露面e.g. She did not show up at the party.這次聚會她沒露面。show的常用詞組：show off

10、 炫耀show ones face露面show up(使)看得見，變得明顯3By the time my mother came back from the market，I_ already_ of the door to go to my piano lesson.4Before she got to the airport，she_about the earthquake.5When she_ the movie theater，she remembered she had forgotten to feed her dog.6Before she got a chance to say

11、 goodbye，he _ the building.hadrushed outhad found outarrived athad gotten intorush outforgetarrive at go intoshow up find out4c Write two true statements and one false statement about your day yesterday. Then ask your classmates to guess the false statement.1By the time I left for school in the morn

12、ing, _ _2By the end of the school day，_ _3By dinner time，I_ I realized that I had left my keys at home. I had already finished my homework.had made the egg soup. 一、根據(jù)首字母或漢語提示填寫單詞1You can buy some things in the m_2The moon was a_ the trees in the east.3People do not know the value of health t_ they l

13、ose it.4The sun rises in the east and sets in the w_5If you travel by air，you must arrive at the a_ very early.arketboveillestirportExercises二、用括號中所給單詞的適當(dāng)形式填空1My family _already_(paint)the walls before we _(move)into the new house last year.2Nick _(turn)off the lights by the time he _(leave)the clas

14、sroom.hadpaintedmovedhad turnedleft Exercises3All the tickets _been _(sell)out before the movie _(begin). 4By the end of last month, we _ (finish)the work.5_(luck), the famous temple was not damaged in the earthquake.had finishedLuckilyhadsoldbegan Exercises三、根據(jù)漢語意思，補(bǔ)全句子1這瓶子里裝滿了水。 The bottle _ _ _ water.2他即將去海南度假。 He _ _ _go to Hainan