牛津譯林八年級(jí)英語(yǔ)上冊(cè)u(píng)nit-4-Do-it-yourself-課件(共42張PPT)

Unit4DoityourselfGrammarAGivinginstructionsPutupapictureonthewall.Putupashelfonthewall.Westartasentencewiththebaseformofaverbwhenwewanttotellpeoplewhattodo.Don’tswimhere.Don’tparkyourbikehere.Weadd‘don’t’infrontoftheverbwhenwewanttotellpeoplenottodosomething.1.祈使句的概念祈使句表示請(qǐng)求、命令等。它的主語(yǔ)是you（聽(tīng)話人），通常不說(shuō)出。祈使句肯定結(jié)構(gòu)中的謂語(yǔ)動(dòng)詞一律用動(dòng)詞原形。祈使句末用驚嘆號(hào)或句號(hào)，句子用降調(diào)。2.祈使句的結(jié)構(gòu)1)祈使句的肯定結(jié)構(gòu)①Do型（以行為動(dòng)詞原形開(kāi)頭），例如：

Sit

down!坐下！

Stand

up!起立！

②Be型（以be開(kāi)頭），例如：

Be

quiet!安靜！

Be

careful！小心?、跮et型（以let開(kāi)頭），例如：

Let

me

try.讓我試試看。

Let’s

look

at

the

map.讓我們看看地圖。●let’s是let

us的簡(jiǎn)略式。●表示請(qǐng)求、勸告的祈使句還常常在句前或句末加上please,

構(gòu)成句式：Please…或…,please.

以使語(yǔ)氣更加緩和或客氣。例如：

Please

stand

up.或Stand

up,please.請(qǐng)站起來(lái)。

Please

have

a

rest.或Have

a

rest,please.請(qǐng)休息一下。

2)祈使句的否定結(jié)構(gòu)，一律在肯定結(jié)構(gòu)前加

Do

not

(Don’t)。例如：Don’t

go

there,please.請(qǐng)別去那兒。Don’t

be

late

for

class!上課別遲到！Don’t

let

him

in.

不要讓他進(jìn)來(lái)。Parkyourbikehere.Pleasegoslowly.MoreinstructionsDon’tsmokehere.Don’tfishhere.MoreinstructionsBequiet,please.Don’tmakeanynoise.MoreinstructionsMillieisteachingherclassmateshowtomakecardstohelpthemrememberthingsbetter.LookatthepicturesandhelpMilliecompletetheinstruction.Howtomakecards_____outpiecesofcardwithapairofscissors.Cut

cutdrawgivekeeplooktrywrite_____somewordsorasentenceoneachcard.Write

cutdrawgivekeeplooktrywrite_____apictureaboutthewordsorsentenceontheothersideofthecard.Draw

cutdrawgivekeeplooktrywrite_____atthepictureand___torememberwhatisontheotherside.Looktry

cutdrawgivekeeplooktrywritePlease_________(not)up.____trying,andyouwillfindyoucanrememberthingsbetter.

don’tgiveKeep

cutdrawgivekeeplooktrywrite1.剪出……2.寫(xiě)一些話或一個(gè)句子3.在每張卡上4.在卡的另一面5.嘗試做某事6.記住某事7.放棄8.放棄某事/做某事9.堅(jiān)持嘗試10.把事情記得更好cutout…writesomewordsorasentenceoneachsideontheothersideofthecardtrytodosth.remembersth.giveupgiveupsth./doingsth.keeptryingrememberthingsbetterUsefulExpressionsGrammarBshould&hadbetter1.PleaseknowalittleaboutDIY.YoushouldknowalittleaboutDIY.Weuse‘should’and‘hadbetter’whengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.YouhadbetterknowalittleaboutDIY.2.Pleaseputinabrighterlightintheroom.Youshouldputinabrighterlightintheroom.Weuse‘should’and‘hadbetter’whengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.Youhadbetterputinabrighterlightintheroom.3.Don’thitthepipe.Youshouldnot/shouldn’thitthepipe.Youhadbetternothitthepipe.Weuse‘should’and‘hadbetter’whengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.4.Don’tpaintthewholeroomblue.Youshouldnot/shouldn’tpaintthewholeroomblue.Youhadbetternotpaintthewholeroomblue.Weuse‘should’and‘hadbetter’whengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.當(dāng)我們給他人提建議時(shí)，可以用hadbetter和should，表示“最好”或“應(yīng)該”做某事，hadbetter的語(yǔ)氣比should強(qiáng)一些。Yourwatchisbroken.Youhadbetterbuyanewone.你的手表壞了，你最好買個(gè)新的。Youshouldexercisemore.你應(yīng)該多鍛煉。hadbetter(常簡(jiǎn)略為’dbetter)，是一固定詞組，后面必須跟動(dòng)詞原形，沒(méi)有人稱和數(shù)的變化。構(gòu)成：hadbetterdosth.句型。You’dbettergotohospitalatonce.你最好立即去醫(yī)院看病。

Tom,you’dbettergotheretoday.湯姆，你最好今天去那兒。hadbetter的否定式是將not直接放在hadbetter的后面。Youhadbetternotbelateforschool.你最好不要上學(xué)遲到。should后面也要跟動(dòng)詞原形，且沒(méi)有人稱和數(shù)的變化。Youshouldstopsmoking.你應(yīng)該戒煙。should的否定式是shouldnot/shouldn’t。Youshouldn’tputsomanybooksontheshelf.你不應(yīng)該在架子上放如此多的書(shū)。DIYadviceSuzyisgivingDIYadvicetoherclassmates.Readtheadvicebelow.HelpSuzymakesentenceswithshould(not)orhadbetter(not).DIYadviceReadtheadviceandmakesentenceswithshould(not)orhadbetter(not).beginyourworkwithoutreadingthem

Youshouldn’tbeginyourworkwithoutreadingthem.Youhadbetternotbeginyourworkwithoutreadingthem.DIYadviceReadtheadviceandmakesentenceswithshould(not)orhadbetter(not).joinaDIYclubtolearnmoreaboutit

YoushouldjoinaDIYclubtolearnmoreaboutit.

YouhadbetterjoinaDIYclubtolearnmoreaboutit.DIYadviceReadtheadviceandmakesentenceswithshould(not)orhadbetter(not).bepatient

Youshouldbepatient.Youhadbetterbepatient.DIYadviceReadtheadviceandmakesentenceswithshould(not)orhadbetter(not).buysometolearnmoreaboutit

Youshouldbuysometolearnmoreaboutit.

Youhadbetterbuysometolearnmoreaboutit.DIYadviceReadtheadviceandmakesentenceswithshould(not)orhadbetter(not).playwiththemwhenyoudoDIYjobsYoushouldnotplaywiththemwhenyoudoDIYjobs.YouhadbetternotplaywiththemwhenyoudoDIYjobs.abeginyourworkwithoutreadingthembjoinaDIYclubtolearnmoreaboutit

cbepatient

dbuysometolearnmoreaboutit

eplaywiththemwhenyoudoDIYjobs1.TherearemanyusefulbooksaboutDIY.Youshould/hadbetterbuysometolearnmoreaboutit.2.DIYisnoteasy.You

should/hadbetterjoinaDIYclubtolearnmoreaboutit.You

shouldn’t/hadbetternotbeginyourworkwithoutreadingthem.3.Instructionsareimportant.You

should/hadbetterbecarefulwhenyouusethem.4.Scissorscanbedangerous.You

should/hadbetterbepatient.5.Sometimesit’lltaketimetodoaDIYjob.1.當(dāng)我們向他人發(fā)出命令、提出要求或建議時(shí)，常使用祈使句。其主語(yǔ)通常不明確表示出來(lái)。其否定形式是在動(dòng)詞原形前加donot/don’t。為了表示客氣和禮貌，可以加上please。2.當(dāng)我們給他人提建議時(shí)，可以用hadbetter和should，表示“最好”或“應(yīng)該”做某事。否定形式是hadbetternot和

shouldnot/shouldn’t。ReflectionI.單項(xiàng)選擇。1.TheTVistooloud.Please_______.

A.turnitdown

B.toturnitdown

C.turndownit

D.toturndownit

2._______lateagain,Bill!

A.Don'ttobe

B.Don'tbe

C.Notbe

D.Benot3._______crosstheroaduntilthetrafficlightsturngreen.

A.Not

B.Won't

C.Doesn't

D.

Don't

4._______methetruth,orI'llbeangry.

A.Telling

B.Totell

C.Told

D.TellII.句型轉(zhuǎn)換。1.Willyoupleasereaditagainmoreslowly?(改為祈使句)

_______againmoreslowly,please.

2.Ifyoudon'tlist