Unit5SectionAGrammarFocus3c課件人教版英語(yǔ)八年級(jí)下冊(cè)

Unit5Whatwereyoudoingwhentherainstormcame?人教版八年級(jí)英語(yǔ)下冊(cè)SectionAGrammarFocus-4cFillintheblankswith“be”.1.I_____16yearsoldthisyear.2.I_____15yearsoldlast

year.3.How_____theweathertoday?4.How_____theweatheryesterday?5.They_____goodfriends.6.They_____goodfriendsthree

years

ago.amwasiswasarewere

RevisionWhatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.GrammarFocus過去進(jìn)行時(shí)WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.when與while引導(dǎo)的時(shí)間狀語(yǔ)從句一、

過去進(jìn)行時(shí)1.概念:表示過去某一時(shí)刻或某段時(shí)間內(nèi)正進(jìn)行

的動(dòng)作。2.構(gòu)成:was/were+動(dòng)詞現(xiàn)在分詞3.用法:

a:表示某一時(shí)刻正進(jìn)行的行為，與特定的過去

時(shí)間狀語(yǔ)連用，常見的時(shí)間有:at8lastnight,atthistime,atthattime,atthatmoment等過去進(jìn)行時(shí)含義:表示過去某個(gè)時(shí)刻

正在進(jìn)行的動(dòng)作。結(jié)構(gòu)：

was/were+doing例句：IwashavinganEnglishclassatthistimeyesterday.現(xiàn)在進(jìn)行時(shí)含義:表示現(xiàn)在正在進(jìn)行

的動(dòng)作。結(jié)構(gòu)：

is/am/are+doing例句：IamhavinganEnglishclass.

現(xiàn)在進(jìn)行時(shí)和過去進(jìn)行時(shí)的區(qū)別二、when與while引導(dǎo)的時(shí)間狀語(yǔ)從句相同點(diǎn)：when和while均可作連詞，意為“當(dāng)……的時(shí)候”，引導(dǎo)時(shí)間狀語(yǔ)從句。1.when的用法(1)指時(shí)間點(diǎn)，也可指時(shí)間段，其從句的謂語(yǔ)動(dòng)詞

既可以是延續(xù)性的，也可以是非延續(xù)性的。例句：當(dāng)交通燈是綠色的時(shí)候，你可以過馬路。

Youcanwalkacrossthestreetwhentraffic

lightsaregreen.

延續(xù)性動(dòng)詞指動(dòng)作可以延續(xù)一段時(shí)間,而不

是瞬間結(jié)束。

如:work、study、drink、eat等。

非延續(xù)性動(dòng)詞指動(dòng)作極為短暫，瞬間結(jié)束。

如:start、begin、hit、jump、knock等。when后面可接短暫性動(dòng)作和延續(xù)性動(dòng)作while只能接延續(xù)性動(dòng)作(2)引導(dǎo)的從句的謂語(yǔ)動(dòng)作既可與主句謂語(yǔ)動(dòng)作同時(shí)發(fā)

生，也可以是之前或之后發(fā)生。例句：邁克給我打電話時(shí)，我正在跟喬討論一道數(shù)

學(xué)題。

IwasdiscussingamathproblemwithJoewhenMikecalledmeup.(3)若主句是一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)表示將來(lái)。例句：我到了上海會(huì)給你打電話。I’llcallyouwhenIarriveinShanghai.2.while的用法(1)指時(shí)間段，其從句的謂語(yǔ)動(dòng)詞必須是延續(xù)性的。例句：請(qǐng)?jiān)谀愕母改附≡诘臅r(shí)候愛他們，不要等到

一切都太遲了。Loveyourparentswhiletheyarealive.Don’twaituntilitistoolate.(2)強(qiáng)調(diào)主句動(dòng)作發(fā)生時(shí)，從句動(dòng)作正在進(jìn)行，常用

while引導(dǎo)從句。主句常用一般過去時(shí)或一般現(xiàn)在

時(shí)，從句常用進(jìn)行時(shí)。例句：當(dāng)我正在河邊釣魚時(shí)，我看到附近有一

條空船。WhileIwasfishingbytheriver,Isawan

emptyboatnearby.(3)強(qiáng)調(diào)主、從句動(dòng)作同時(shí)進(jìn)行，常用while引導(dǎo)從句，

此時(shí)主從句常用進(jìn)行時(shí)。例句：康康在上音樂課的時(shí)候，Darren在爬山。

Darrenwasclimbingamountainwhile

Kangkangwashavingamusiclesson.1.____Jenniferwasreadingamagazine,hersisterwaslisteningtothepopmusic.A.WhileB.WhenC.Whattime2.Iwastryingtodrawacatontheboard_____theteachercamein.A.whileB.whenC.whattime3.MybestfriendvisitedmyhousewhileI_____dinnerinthekitchen.

A.cookedB.cookingC.wascookingA

B

C

Exercises4.―

When

______thecar______?―

In1885.

A.did;invent

B.was;inventedC.does;invent

D.is;invented5.Ourteacherwantsustobe______

when

wetalkwiththeforeigners.A.comfortable

B.unusual

C.grateful

D.confidentB

D

6.—Dickgavemeanote

while

I______inthelibrary.

—Iguesshemadeittosay“sorry”toyou.

A.amreadingB.wasreading

C.reads

D.willread

B

Lookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecar

wash4aWhileJohnwascleaninghisroom,Maryturnedontheradio.JohnwascleaninghisroomwhenMaryturned

ontheradio.WhileJohnwasshopping,Marytookthecartothecarwash.JohnwasshoppingwhenMarytookthecartothecarwash.At7:00a.m.,Iwokeup.

________I

______makingmybreakfast,mybrother_______listeningtotheradio.______Iwaseating,theradionewstalkedabout

acaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook.

_______wegottotheplaceoftheaccident,thecar______inbadshapefromhittingatree.Butluckily,thedriver______fine.Theroads______icybecauseoftheheavysnowfromthenightbefore.WhilewaswasWhileWhenwaswaswere4bFillintheblankswithwas,were,whenorwhile.Whatwereyoudoingatnineo’clocklastSundaymorning?Iwassleeping.Howaboutyou?Iwasdoingmyhomework.You’rekidding!kid在此句中作動(dòng)詞，意為“開玩笑”。其現(xiàn)在分詞為kidding，過去式為kidded。1.What______(be)you______(do)whenhe

arrived?2.Jim_______________

(sleep)whenIcamein.3.They_______________(watch)TVat8:00yesterdayevening.4.Nowhe__________(read)and________

(write).were

doing

was

sleeping

were

watching

is

reading

writingI.用所給詞的正確形式填空。Exercises5.Mother_____________(wash)clotheswhenI_____(get)homefromschoolyesterday

afternoon.6.Look,mysister_____(be)thereinthebarbershop.Thebarber____________(cut)herhair.7.—When_______you________(see)theaccident?—I______(see)itfifteenminutesago.was

washinggotisiscuttingdidseesaw1.上課鈴響時(shí),你在干什么?What_____you______whentheclassbellrang?2.當(dāng)我媽媽進(jìn)來(lái)時(shí)我正在看書.I_