Unit5SectionAGrammarFocus3c课件人教版英语八年级下册

Unit5Whatwereyoudoingwhentherainstormcame?人教版八年级英语下册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过去进行时WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.when与while引导的时间状语从句一、

过去进行时1.概念:表示过去某一时刻或某段时间内正进行

的动作。2.构成:was/were+动词现在分词3.用法:

a:表示某一时刻正进行的行为，与特定的过去

时间状语连用，常见的时间有:at8lastnight,atthistime,atthattime,atthatmoment等过去进行时含义:表示过去某个时刻

正在进行的动作。结构：

was/were+doing例句：IwashavinganEnglishclassatthistimeyesterday.现在进行时含义:表示现在正在进行

的动作。结构：

is/am/are+doing例句：IamhavinganEnglishclass.

现在进行时和过去进行时的区别二、when与while引导的时间状语从句相同点：when和while均可作连词，意为“当……的时候”，引导时间状语从句。1.when的用法(1)指时间点，也可指时间段，其从句的谓语动词

既可以是延续性的，也可以是非延续性的。例句：当交通灯是绿色的时候，你可以过马路。

Youcanwalkacrossthestreetwhentraffic

lightsaregreen.

延续性动词指动作可以延续一段时间,而不

是瞬间结束。

如:work、study、drink、eat等。

非延续性动词指动作极为短暂，瞬间结束。

如:start、begin、hit、jump、knock等。when后面可接短暂性动作和延续性动作while只能接延续性动作(2)引导的从句的谓语动作既可与主句谓语动作同时发

生，也可以是之前或之后发生。例句：迈克给我打电话时，我正在跟乔讨论一道数

学题。

IwasdiscussingamathproblemwithJoewhenMikecalledmeup.(3)若主句是一般将来时，从句用一般现在时表示将来。例句：我到了上海会给你打电话。I’llcallyouwhenIarriveinShanghai.2.while的用法(1)指时间段，其从句的谓语动词必须是延续性的。例句：请在你的父母健在的时候爱他们，不要等到

一切都太迟了。Loveyourparentswhiletheyarealive.Don’twaituntilitistoolate.(2)强调主句动作发生时，从句动作正在进行，常用

while引导从句。主句常用一般过去时或一般现在

时，从句常用进行时。例句：当我正在河边钓鱼时，我看到附近有一

条空船。WhileIwasfishingbytheriver,Isawan

emptyboatnearby.(3)强调主、从句动作同时进行，常用while引导从句，

此时主从句常用进行时。例句：康康在上音乐课的时候，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在此句中作动词，意为“开玩笑”。其现在分词为kidding，过去式为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.用所给词的正确形式填空。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.上课铃响时,你在干什么?What_____you______whentheclassbellrang?2.当我妈妈进来时我正在看书.I_