2024年人教九年级英语 unit10 Grammar Focus-课件 (2).pptVIP

Unit10;Readthesentencespayingattentiontothecoloredparts.;Whenwereyousupposedtoarrive?

Iwassupposedtoarriveat7:00.

AmIsupposedtowearjeans?

It’sveryimportanttobeontime.

Itispoliteforboystoshakehandsandforgirlstokisseachotheronthesideoftheface.;“besupposedto”的用法

1.besupposedto意为“应该；被期望/期待;理应”，用来表示根据规定人们不得不做某事，或期待发生某事，时态、人称和句式的变化在be上体现，to为不定式符号，后接动词原形。

2.besupposedtodo的否定式，要在be后加not,此时相当于benotallowedtodo,意为“不被许可；不应当”。;3.如果表达“过去某时应该(不应该)做”时，用was(wasn’t)/were(weren’t)supposedtodo,相当于should(shouldn’t)have+动词过去分词。;besupposedtodosth.“应该做某事”,某人被期望做某事，主语通常是人,相当于beexpectedtodosth.，常用来提出建议，其否定结构为benotsupposedtodosth.。

You’resupposedtogetthereearly.

你应该早点到那儿。

You’renotsupposedtosmokehere.

你们不应该在这里吸烟。;拓展:

★当besupposedto的主语为“物”时，意为“本应，本该”，表示某事本应该发生而没有发生。

Thetrainwassupposedtoarrivetenminutesago.

火车应该在十分钟前到达。;★当besupposedto的主语是人时，后面还可以接“have+过去分词”，意为“本应,应该”，表示本应该做某事而没做。

YouaresupposedtohavearrivedinBeijingnow.

你本应该现在已经到了北京了。;besupposedtodosth为系表结构，强调客观上有责任/义务作某事。

Youaresupposedtocleantheblackboard,foryouareondutytoday.

should强调主观上应该做某事。

Youshouldstudyhard,foryouareastudent.;Whatareyousupposedtodowhenyouseeanoldmanfalldown?;Whatareyousupposedtodowhenyougoacrosstheroad?;Whatareyousupposedtodowhenyouseeathiefstealingsomeone’swallet?;Whatareyousupposedtodowhenyoufindrubbisheverywhere?;Whatareyousupposedtodowhensomeoneasksyouforhelp?;用所给词的适当形式填空

Asastudent,IknowIam_________

(suppose)tostudyhard.

2.Heis__________(notsuppose)tosmoke

here.;3.What______you_______(suppose)todo

whenyoumeetsomeoneforthefirsttime

inAmerica?

4.Iwas_________(suppose)toarriveatthe

partyat6:30p.m.,butIarrivedat7:30

p.m..;①You________askfortheteacherspermission

ifyouwanttoleave