2024年人教版八年级英语下册unit5 Period 3课件（50张）.pptVIP

Unit5

Whatwereyoudoingwhen

therainstormarrived?;Whatwereyoudoingwhentherainstormcame?;Iwascooking.;Iwasreading.;Iwasinthebathroom.;Iwasinthekitchen.;WhenI…;WhileI…;WhenI…;Whatwereyoudoingateightlastnight?

Iwastakingashower.;Whatwashedoingwhentherainstormcame?

Hewasreadinginthelibrarywhentherainstormcame.;??1.以when和while引导的时间状语从句;2)在本单元中,出现了以when和while引导的

时间状语从句。

when表示“当……的时候”。从句中既可用延续性

动词,又可用非延续性动词,这些动词既可以

表示动作,又可表示状态。从句中的动作既可

和主句的动作同时发生,又可在主句的动作之前

或之后发生。如：

????MarywashavingdinnerwhenIsawher.

????Theboywasstillsleepingwhenhismothergot

homeyesterdaymorning.;while表示“在……的时候”、“在……期间”。

它强调主句的动作与从句的动作同时发生或

主句的动作发生在从句的动作过程中。While

从句中必须是表示动作或状态的延续性动词。如：

????TheweatherwasfinewhilewewereinBeijing.

????ShecalledwhileIwasout.

如果主句的动作在从句的动作过程中发生，

从句常用进行时。如:

Whilewewereswimmingsomeonestoleourclothes.

Don’ttalksoloudwhileothersareworking.;?总结;1._____Jenniferwasreadingamagazine,

hissisterwaslisteningtothepopmusic.

A.While B.When C.Whattime

2.Iwastryingtodrawacatontheboard

_____theteachercamein.

A.while B.when C.whattime

3.MybestfriendvisitedmyhousewhileI

_____dinnerinthekitchen.

A.cooked B.cooking C.wascooking;4.―?When?______thecar______?

―?In1885．?

A.did;invent??????B.was;invented

C.does;invent?D.is;invented

5.Ourteacherwantsustobe______?when?wetalkwiththeforeigners.

A.comfortable????B.unusual???????

??C.grateful???????D.confident;2.过去进行时;b:表示过去某段时间内正进行的动作。

e.g.Wewerebuildingahouselastwinter.

Theywerewaitingforyouyesterday.

否定句和疑问句：

e.g.Wewerenotsleepingathome.

Washefeelingwell?;??3.现在分词的构??;4)以字母y结尾的单词,直接加ing。

????如carrying、playing、studying。

5)以字母ie结尾的动词,变ie为y,再加ing。

??die→dying????????????lie→lying

6)