Unit3Grammar課件級英語下冊

Unit3Treesandus

GrammarThepresentcontinuous行業(yè)PPT模板:///hangye/Icanunderstandthestructureandmeaningofthepresentcontinuoustense.LearningObjectiveBytheendofthelesson,Iwillbeableto...understandthestructureandmeaningofthepresentcontinuoustense.knowthesentencechangesinthepresentcontinuoustense.knowtherulesofformingVerb-ing.usethepresentcontinuoustensetofinishtheexercisecorrectly.行業(yè)PPT模板:///hangye/Lookandsay.Usingthestructure“be+Ving”LeadinTom,whatareyoudoingnowIamreadingabook.WhatisthegirldoingnowSheisplayingthepiano.行業(yè)PPT模板:///hangye/Lookandsay.Usingthestructure“be+Ving”LeadinWhataretheydoingnowTheyareplantingatree.WhatistheboydoingnowHeisstudying.行業(yè)PPT模板:///hangye/LeadinTheyarediggingahole.Heisstudying.Iamreadingabook.Sheisplayingthepiano.Thepresentcontinuous現(xiàn)在進行時Whattenseisusedinthesesentences行業(yè)PPT模板:///hangye/

PresentationLiNaistalkingtoWangJieonthephone.Readthedialogueandcirclethepresentcontinuousbelow.LiNa:HiWangJie.WhatareyoudoingnowAreyouathomeWangJie:No,myparentsareaway,soI’mstayingwithmygrandmotherthisweek.I’mwatchingaTVprogrammeabouttrees.LiNa:ReallySuSuandIareworkingonourgroupproject.It’sabouttrees.CouldyouhelpusWangJie:Sure,noproblem!Wecanmeetuptomorrowafterschool.行業(yè)PPT模板:///hangye/WhendothesethingshappenInthepast,present,orfutureWeusethepresentcontinuoustoshowthatsomethingishappeningnow.PresentationWhatareyoudoingnowI’mwatchingaTVprogrammeabouttrees.SuSuandIareworkingonourgroupproject.行業(yè)PPT模板:///hangye/Presentation一般現(xiàn)在時VS現(xiàn)在進行時1.Weplay

football

everyday

afterschool.2.He

cleans

hisroom

everyday.3.They

often

come

toChinaforavisit.1.Weareplaying

football.2.He

iscleaning

hisroom

now.3.They

arevisiting

China.

每天放學(xué)后我們都踢足球。我們在踢足球。他正在打掃房間。他每天都打掃房間。他們經(jīng)常來中國觀光。他們正在中國觀光。一般現(xiàn)在時

表示習(xí)慣性或經(jīng)常性的行為

現(xiàn)在進行時表示正在進行的行為行業(yè)PPT模板:///hangye/

Presentation現(xiàn)在進行時的含義1.現(xiàn)在進行時可以表示說話時正在進行或發(fā)生的動作。(1)HiWangJie.Whatareyoudoingnow嗨，王杰。你現(xiàn)在在做什么(2)Rightnow,sheiscookingdinner.此刻，她正在做晚飯。(3)Listen!TheyaresinginganEnglishsong.聽！他們正在唱一首英文歌?！铿F(xiàn)在進行時常與now,

rightnow,

atthemoment等時間狀語,或look，listen等詞連用。行業(yè)PPT模板:///hangye/

Presentation現(xiàn)在進行時的含義2.現(xiàn)在進行時也可表示現(xiàn)階段一直持續(xù)的動作，但說話時動作不一定進行，常帶有thisweek,thesedays等時間狀語。(1)I'mstayingwithmygrandmother

thisweek.我這周住姥姥家。(2)We

arenotworking

onafarmthesedays.這些天我們不在農(nóng)場工作。(3)I'mwritingalongnovelthesedays.我最近在寫一部長篇小說。行業(yè)PPT模板:///hangye/PresentationThinkWhat’sthestructureofthepresentcontinuoustenseIamreadingabook.Sheisplayingthepiano.They

arediggingahole.Heisstudying.主語be動詞(am/is/are)V-ing①Weuseam

+ingformofaverbwiththesubject____.②Weuseis

+ingformofaverbwiththesubjects_____,_____,and____.③Weuseare

+ingformofaverbwiththesubjects____,_____,and____.Ihesheittheyyouwe現(xiàn)在進行時的結(jié)構(gòu)行業(yè)PPT模板:///hangye/Presentation現(xiàn)在進行時的句式變化(1)肯定句:________________________________Iam

readingabook.主語+am/is/are+V-ing+其他.(2)否定句：_______________________ ①Iam

notwriting.

②SheisnotwatchingTV.

③Theyarenotstudying.主語+am/is/are+not+V-ing+其他.我正在看書。我沒在寫東西。她沒有在看電視。他們沒有在學(xué)習(xí)。Sheisn’twatchingTV.Theyaren’tstudying.isnot可以縮寫為isn’t，arenot可以縮寫為aren’t，但是amnot通常不縮寫。行業(yè)PPT模板:///hangye/Presentation(3)一般疑問句:_____________________________肯定回答:______________________________否定回答:______________________________①-Ishereading-Yes,heis./No,heisn't.

②-Areyoulisteningtomusic-Yes,Iam./No,I’mnot.Am/Is/Are+主語+V-ing+其他？Yes,主語+am/is/are.No,主語+am/is/are+not.—他在讀書嗎—是的，他是。/不，他不是?！阍诼犚魳穯帷堑?，我是。/不，我不是。直接把am/is/are提句首,若原句有第一人稱，把第一人稱變成第二人稱。行業(yè)PPT模板:///hangye/PresentationMymotheriscookingdinnerinthekitchen.(4)特殊疑問句：

_______________________________

WhereisyourmothercookingdinnerWhatisyourmotherdoinginthekitchenWhoiscookingdinnerinthekitchen疑問詞+一般疑問句行業(yè)PPT模板:///hangye/Practice根據(jù)題目要求，完成下列句子。1.Theyaredoingthehouseworknow.(分別改成一般疑問句和否定句) Aretheydoingthehouseworknow Theyaren’tdoingthehouseworknow.2.Thestudentsarecleaningtheclassroom.(改為一般疑問句并作肯定和否定回答)ArethestudentscleaningtheclassroomYes,theyare./No,theyaren’t.行業(yè)PPT模板:///hangye/Practice3.I’mplayingfootballintheplayground.(改為否定句)I’mnotplayingfootballintheplayground.4.Tomisreadingbooksinhisroom.(改為一般疑問句)IsTomreadingbooksinhisroom行業(yè)PPT模板:///hangye/PresentationThinkHowtomakethe-ingformofaverb①一般在動詞末尾加ing。read—drink—meet—readingdrinkingmeeting②以不發(fā)音字母e結(jié)尾的動詞，去掉e,再加ing。write—make—have—writinghavingmaking行業(yè)PPT模板:///hangye/Presentation③以ie結(jié)尾的動詞，變ie為y,再加ing。lie—die—lyingdying④一些以一個元音字母+一個輔音字母結(jié)尾的動詞

雙寫最后一個輔音字母，再加ing。get—swim—sit—gettingsittingswimming行業(yè)PPT模板:///hangye/Presentation情況

變形示例一般情況

加-ingwork-working,listen-listening,study-studying以不發(fā)音字母e結(jié)尾去e,再加-ingwrite-writing,make-making,hopehoping重讀閉音節(jié)結(jié)尾的動詞

雙寫詞尾輔音字母加-ingrun-running;put-putting;begin--beginningswim-swimming;cut-cutting;travel-travelling以ie結(jié)尾

變ie為y再加-inglie-lying;tie-tying;die-dying行業(yè)PPT模板:///hangye/ExerciseChangetheverbsinto–ingform.think __________tell __________sit __________come __________smile __________lie __________sing __________fight__________change__________run __________thinkingtellingsittingcomingsmilinglyingsingingfightingchangingrunning行業(yè)PPT模板:///hangye/Presentation★一些表示感官、認知、情感類的動詞常用于一般現(xiàn)在時，不用于現(xiàn)在進行時(1)Iknowtheanswernow.Iamknowingtheanswernow.

Sheislikingthispoem.(2)Shelikesthispoem.行業(yè)PPT模板:///hangye/Presentation不用現(xiàn)在進行時的動詞行業(yè)PPT模板:///hangye/Presentation1、存在狀態(tài)類動詞be,stay,remain等2、表示“擁有，屬于”have,own,belongto,possess,consistof等2、心理狀態(tài)和情感類動詞like,dislike,love;hate等3、認知類動詞think,believe,want,mind,know,understand,wish,agree3、系動詞類seem,taste,turn,remain,appear,look,sound等4、瞬間動詞類accept,refuse,receive,decide,promise等不用現(xiàn)在進行時的動詞行業(yè)PPT模板:///hangye/Presentation一般來說，瞬間動詞不能用現(xiàn)在進行時表達，但是像come，go，leave,arrive，start，fly

等瞬間動詞用現(xiàn)在進行時表達時常與表示將來時的時間狀語連用，表示將要發(fā)生的動作。例如:TheyareleavingforAustraliatomorrowafternoon.Iamcoming,Mum!瞬間動詞的用法行業(yè)PPT模板:///hangye/PracticeChenLiismakingavideoabouthowtreesprotectthemselvesfromenemies.Helphercompletethevideoscriptwiththecorrectformoftheverbsinbrackets.areeatingamfeelingismovingiswaiting行業(yè)PPT模板:///hangye/Practiceiseatingisisenjoyinggiving行業(yè)PPT模板:///hangye/PracticeTreesareveryimportantinourlives.They

(provide)uswithfoodandoxygen.Inthepast,people____(cut)downmanytrees.This____(cause)alotofenvironmentalproblems.Theair________(become)worseandsomeanimals____(lose)theirhomes.Now,people________

(become)moreawareoftheimportanceofprotectingtrees.Look!Somevolunteers______(dig)holesand____(put)thetree