初中英语外研社版九年级上册：Module 2 Public holidays Unit 3 Language practice (1)-教学课件.pptxVIP

Module2PublicholidaysUnit3Languagepractice(1)

年级：九年级学科：初中英语(外研版)

Leadin

Theyhavecelebratedthefestivalsince

thefirstpioneersfromEnglandarrivedinAmerica.(NSE9AM2U2)

WhiletheywerecrossingtheAtlantic,

manypeopledied,andaftertheylanded,theirfirstwinterwasworsethananyEnglishwinter.(NSE9AM2U2)

WTe

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Definition

Theyhavecelebratedthefestivalthen.adverb

TheyhavecelebratedthefestivalsincethefirstpioneersfromEnglandarrivedinAmerica.

subordinatingadverbial

conjunctionclause

(subjecttverb)

main

clause

(subject+verb)

Theyhavecelebratedthefestivalsincethefirst

pioneersfromEnglandarrivedinAmerica.

SincethefirstpioneersfromEnglandarrivedinAmerica,theyhavecelebratedthefestival.

Whenwebeginasentencewithanadverbialclause,weshouldputacommaattheendoftheclausebeforethemainclause.

timeplacecauseconditionpurpose

concessioncomparisonmannerresult

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adverbialclauseof

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adverbialclauseoftime

conjunction:

when,while,before,after,assoonas,until,since

Andmyfamilyalwaysgosomewhereinterestingassoonastheholidaybegins.(NSE9AM2U1)

Thefestivalisaverybusytimefortravelwhenfriends

andfamiliescometogethertocelebrate.(NSE9AM2U2)

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when当……的时候

表示主句与从句的动作或事情同时发生或者先后发生。从句的谓语动词既可以是短暂性动词，也可以是持续性动词。

Whentheweatherisfine,manypeoplegoout

forawalk.

WhenIgothome,Ifoundmybabygirlsinginginthesittingroom.

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while当....的时候

表示主句的行为在从句行为进行的过

程中发生。从句中要用持续性动词或状

态动词，且持续性动词常用进行时态。

WhiletheywerecrossingtheAtlantic,manypeopledied.

DontmakeanynoisewhileIamreading.

when从句的谓语动词既可与持续性动词也可与短暂性动词连用。

while从句的谓语动词用持续性动词或状态动词，且持续性动词常用进行时态。

1.Ipickedupthephonewhenitrang.while

2.Wewerelyingonthebeachwhile_theywereplaying

volleyball.

when

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whenVSwhile

Beforewebegi