Unit3-Unit4八年級下冊優(yōu)質(zhì)英語課件Unit3-Unit4八年級下冊優(yōu)質(zhì)英語課件1Mom:Peter,couldyouplease……?Peter:Yes,sure.

/Allright./Noproblem./Certainly./Sorry,Ican't.Ihavetodo...Mom:Peter,couldyouplease…2A:Couldyouplease......?

B:Yes,sure./Allright./Noproblem./Certainly.

Sorry,Ican’t.Ihavetodo......

Sorry,Ican’t.Iamdoing......

Makepoliterequests

禮貌提出請求takeouttherubbish

dochoresdothedishessweepthefloormakedinnerwashthecarmakethebedfoldtheclothescleanthelivingroomA:Couldyouplease......?3Askforpermission

禮貌地取得同意A:CouldI

useyourcomputer?B:

Sorry.I'mgoingtoworkonitnow.A:Well,couldIwatchTV?B:Yes,youcan,butfirstyouhavetocleanyourroom.

No,youcan't....2cMakeconversationsbetweenPeterandhisfather.Askforpermission

禮貌地取得同意A:C4Whatdidwelearntoday?倒垃圾干家務洗餐具掃地做飯整理床鋪疊衣服takeouttherubbishdochoresdothedishessweepthefloormakedinnermakethebedfoldtheclothesWhatdidwelearntoday?倒垃圾t5打掃客廳幫助解決至少完成（做)某事購物回來看到這么凌亂cleanthelivingroomhelpoutatleast

finishdoingsth.bebackfromshoppingseethismess打掃客廳cleanthelivingroom6takeoutthetrashdochoresdothedishessweepthefloormakedinnermakethebedfoldtheclothesA:Couldyoupleasemakesentenceswiththesephrasesinthepasttense?B:Sure.Ididsomechores.cleanthelivingroomhelpoutwithatleastfinishdoingsth.bebackfromshoppingseethismessmothercleanReviewtakeoutthetrashA:Couldyou72.I’mjustastiredasyouare!

as...as意為“和……一樣”，表示同級的比較。使用時要注意第一個as為副詞，第二個as為連詞。其基本結構為：as+

adj./

adv.

+as。e.g.This

film

is

as

interesting

as

that

one. 這部電影和那部電影一樣有趣。 Your

pen

writes

as

smoothly

as

mine. 你的鋼筆書寫起來和我的一樣流暢。2.I’mjustastiredasyouar8as…as的否定形式為“notas/so+adj./adv.+as”。e.g.Hedidn’tactaswellasyou. 他表現(xiàn)得不如你好。as…as的否定形式為“notas/so+ad93.Foroneweek,shedidnotdoanyhouseworkandneitherdidI.neither用作副詞，作“也不”解釋，放在句首，表示前面否定的內(nèi)容也適用于另一個人或物，句子須采用部分倒裝。此時也可用nor替換neither使用。3.Foroneweek,shedidnotd10例如：—I

don’t

like

this

dress.

我不喜歡這件連衣裙?！狽either

/

Nor

do

I.

我也不喜歡。注意：neither之后的主語要置于助動詞或系動詞之后。例如：111.also

是比較正式的用語，語氣較莊重。它通常放在句中，位于行為動詞之前，連系動詞之后;如有助動詞或情態(tài)動詞，一般放在助動詞或情態(tài)動詞之后。例如:Peteralsohastwobrothers.彼得也有兩個兄弟。also,too,either,neither的用法1.also是比較正式的用語，語氣較莊重。它通常放在句122.ImportantsentencesTheminuteIsatdowninfrontoftheTV,mymomcameover.Foroneweek,shedidnotdoanyhousework,andneitherdidI.I’mjustastiredasyouare!2.Importantsentences13CouldIgooutfordinnerwithmyfriends?Sure,thatshouldbeOK.Couldwegetsomethingtodrinkafterthemovie?No,youcan’t.Youhaveabasketballgametomorrow.Couldyoupleasetakethedogforawalk?OK,butIwanttowatchoneshowfirst.Couldyoupleasetakeouttherubbish?Yes,sure.閱讀下列句子，觀察問句的用法及回答。CouldIgooutfordinnerwith14在表示請求幫助或請求允許的疑問句中，常用could代替can，以表示禮貌，委婉或不確定的語氣，而can則不具備這些語氣。這種情況下不能把could看作can的過去式。以上兩句中用could是為了表示禮貌的請求。表示請求幫助或請求允許時，除了can,could之外，還可以用may，句子的表達方式也各有不同，可以用不同的方式來表示同一個概念。例：在表示請求幫助或請求允許的疑問句中，常用co15①Could/Can/MayIuseyourcarforaday?②IwonderifIcoulduseyourcarforaday?

對于①、②句所作允答可以各種各樣，如同意可以說Yes或Sure或Certainly，還可說Yes,(do)please.或Ofcourse.(youmay/can).或Goahead,please.或That’sOK/allright;如果不同意，可以說I’msorryyoucan’t.或I’mreallysorry,butIhavetouseittoday.要避免說No,youcan’t.這樣顯得很不禮貌。否定回答通常用委婉語氣。①Could/Can/MayIuseyourcar16③DoyoumindifIuseyourcarforaday?

對于句③所作回答可以說Nevermind./Notatall.表“不介意”。不能用Yes./Sure./Ofcourse./Certainly.等。無論肯定還是否定應答中，要避免使用could，要用can或may。因為應答須用確定的語氣。而could在表請求的問句中是為了表示禮貌或委婉語氣，用在應答中則成了不確定語氣，與情理不符。所以應答中不說Yes,youcould.或No,youcouldn’t.而要說Yes,youcan.或Sorry./No,youcan’t.③DoyoumindifIuseyourca17helpwithhouseworkandchoresathomehaveenoughstressfromschoolspendthetimeonschoolworkinorderto…Thereisnoneedforthemto…Itisimportantforsb.todosth.It’snotenoughto…developchildren’sindependenceThemore…,themore…Usefulphraseshelpwithhouseworkandchores18Unit4Whydon’tyoutalktoyourparents?Unit4191.IhavetostudytoomuchsoIdon’tgetenoughsleep.Discusstheseproblemsandgivesomeadvice.DiscussingWhydon’tyou

gotosleepearlierthisevening?1.Ihavetostudytoomuchso202.IhavetoomuchhomeworksoIdon’thaveanyfreetimetodothingsIlike.Whydon’tyou

gotoamoviethisevening?3.Myparentsdon’tallowmetohangoutwithmyfriends.Whynot

readsomeinterestingbooksathome?2.Ihavetoomuchhomeworkso212.情態(tài)動詞should，could等should，shouldn’t

“（不）應該”，常用來提出請求和建議

could

“可以”可也用來給出建議。用could給出建議一般是指自己不太肯定，或者只是很多建議中的某一個，僅供參考；而should就是自己很肯定的或唯一的最好的一個建議。區(qū)別2.情態(tài)動詞should，could等should，sh22should(shall)could(can)情態(tài)動詞+v,可表示說話人的語氣，可表達建議、要求、可能和意愿等，沒有人稱和數(shù)的變化。should(shall)could(can)232.Insteadhewatcheswhateverhewantsuntillateatnight.1)insteadadv.

代替；反而；卻e.g.Ifwecan’tgotoHuashanMountain,we’llgotothecityofXi’anforthetrip.如果我們不能去爬華山，我們就去西安游玩。instead是副詞，常置于句子末尾。insteadof是介詞短語，后接名詞、代詞、動名詞等。

辨析2.Insteadhewatcheswhatever24例如：Last

summer

I

went

to

Qingdao.

This

summer

I’m

going

to

Dalian

instead.去年夏天我去了青島。今年夏天我要去大連。

Instead

of

going

to

Qingdao

I’m

going

to

Dalian

this

year.今年我打算去大連，而不去青島。例如：252.AsfarasIknow,therearenoman-madeobjectsasbigasthis.

據(jù)我所知，再沒有像它這樣大的人造物體了。asfarasIknow是一個固定的表達方式，還可以說sofarasIknow，意思是“據(jù)我所知”。例如：AsfarasIknow,Jack’sgottwinsisters.就我所知，杰克有一對孿生姐妹。They’renotcomingtoday,sofarasIknow.他們今天不來了—就我所知是這樣的。2.AsfarasIknow,thereare26根據(jù)課本內(nèi)容，完成下列句子。1.你看上去很疲勞，怎么了？You____tired.What’s__________?2.昨晚，我一直學習到午夜，因此我沒有睡足覺。

Istudied______________lastnightsoIdidn’t_________sleep.Grammarfocusuntilmidnightlookthemattergetenough根據(jù)課本內(nèi)容，完成下列句子。1.你看上去很疲勞，怎么了？273.我應該做什么？____________Ido?4.你為什么不忘掉此事呢？盡管她錯了，但那不是一件大事。_________youforgetaboutit?_________she’swrong,it’snot____________.WhatshouldWhydon’tAlthoughbigdeala3.我應該做什么？WhatshouldWhyd285.他應當如何做？____________hedo?6.他應當和他的朋友談一下，以便他能向他道謙。He______________hisfriend________hecansayhe’ssorry.Whatshouldshouldtalktosothat5.他應當如何做？Whatshouldshould29表建議的句型：Youshould/could+v.Whydon’tyou+v.?Whynot+v.?Couldyouplease+v.?

You’dbetter(not)+v.Wouldyouminddoing……?Whatabout/Howabout+n./doing……?表建議的句型：Youshould/could+v.30點撥：sothat

意為“因此”，引導目的狀語從句，表示前一句所表述的動作的目的。在從句中常使用can/could/will/may/should等詞。拓展：so…that…意為“如此……以至于”，常用于結果狀語從句，表示上文動作所產(chǎn)生結