牛津译林版英语8Aunit4Grammar公开课课件

GrammarUnit4Doityourself

Let’sreviewAndrewiscrazyaboutDIY.putinabrighterlightLet’sreviewAndrew,becareful.makeamistakehaveapowercutputupapictureLet’sreviewhitapipefilltheroomwithwaterAndrew,putupthepictureonthewall.paintthelivingroomblueLet’sreviewDon’tpainttheroomblue.Don’tpaintthecat.Even…havenotonlybluewallsbutalsoablueceilingandfloorspend5hoursputtinguptheshelfbookscouldn’tstayLet’sreviewAndrew,pleasefixtheshelfforme.BrainstormAndrew,becareful.Andrew,putupthepictureonthewall.Don’tpainttheroomblue.Don’tpaintthecat.Andrew,pleasefixtheshelfforme.1.祈使句的概念祈使句表示请求、命令等。祈使句肯定结构中肯定是以动词原形开始。它的主语是you（听话人），通常省略。Imperativesentences2.祈使句的结构1)祈使句的肯定结构①Do型（以行为动词原形开头），例如：

②Be型（以be开头），例如：

③Let型（以let开头），例如：

●let’s是let

us的简略式。●letus≠Let’sStand

up!Openthedoor!Be

quiet!Be

careful！Let

me

try.Let’s

look

at

the

map.●表示请求、劝告的祈使句还常常在句前或句末加上please,

构成句式：Please…或…,please.

以使语气更加缓和或客气。例如：

Please

stand

up.Stand

up,please.

Please

have

a

rest.Have

a

rest,please.2)祈使句的否定结构，一律在肯定结构前加

Do

not

(Don’t)。例如：

注意：Let’s型祈使句，其否定式也可用

Let’s

not…，例如：

Let’s

not

have

arest.

Let’s

not

sit

here!

Don’t

go

there,please.Don’t

be

late

for

class!Don’t

let

him

in.请不要去那里！不要上课迟到！不要让他进来！1.祈使句的反义疑问句。Openthedoor,

?Don’ttalkinclass,

?Let’splayagame,

?Letusgohome,

?2.正确区分祈使句。Z，xxkLucy(do)herhomeworkbyherself.Lucy,(do)yourhomeworkbyyourself.willyouwillyoushallwewillyoudoesdo3.祈使句中的反身代词。Make(you)athome,Kitty!Help(you)tosomefish,Daniel!Children,enjoy(you)intheWorldPark!4.正确区别祈使句和动名词。

theapplesandeatthem.(pick)

theapplesisgreatfun.(pick)

makesyoulooksmart.(read)

thebooksandanswerthequestions.(read)yourselfyourselfyourselvesPickPickingReadingReadMillieisteachingherclassmateshowtomakecardstohelpthemrememberthingsbetter.LookatthepicturesandhelpMilliecompletetheinstruction.Howtomakecards_____outpiecesofcardwithapairofscissors.Cut

cutdrawgivekeeplooktrywrite_____somewordsorasentenceoneachcard.Write

cutdrawgivekeeplooktrywrite_____apictureaboutthewordsorsentenceontheothersideofthecard.Draw

cutdrawgivekeeplooktrywrite_____atthepictureand___torememberwhatisontheotherside.Looktry

cutdrawgivekeeplooktrywritePlease_________(not)up.____trying,andyouwillfindyoucanrememberthingsbetter.

don’tgiveKeep

cutdrawgivekeeplooktrywriteWillAndrewlistentoourinstructions?Maybe

weshould

bemorepolite!

也许我们该给他提意见而不是下指令！Maybeweshouldgivehimsomeadviceinsteadofgivinginstructions.当我们给他人提建议时，可以用hadbetter和should，表示“最好”或“应该”做某事，hadbetter的语气比should强一些。你的手表坏了,你最好买个新的。你应该对DIY有点了解。Youwatchisbroken.Youhadbetterbuyanewone.YoushouldknowalittleaboutDIY.hadbetter(常简略为’dbetter)，是一固定词组，后面必须跟动词原形，没有人称和数的变化。构成：hadbetterdosth.句型。汤姆，你最好今天去那儿。hadbetter的否定式是hadbetternotdosth.你最好不要错过末班公共汽车。Tom,you’dbettergotheretoday.Youhadbetternotmissthelastbus.should后面也要跟动词原形，且没有人称和数的变化。你应该戒烟。

Youshouldstopsmoking.

should的否定式是shouldnot/shouldn’t。你不应该喝酒后开车。Youshouldn’tdriveafterdrinking.

SomeadviceonDIY

PartA:learnhowtogiveinstructions

(Please)+dosth.(Please)+Don’t

dosth.PartB:learnhowtogiveadvice

肯定：should/hadbetter+V原

否定：shouldnot/hadbetternot+V原肯定：否定：SummarySuzyisonatriptoTaixing.Shewantstovisityourschool.Therearemanydifferentsignsaroundorinyourschooltellinguswhatwecandoorwhatwecan’tdo.PleasetalkwithyourpartnerfirstthenwriteashortpassagetoSuzyaboutthethingsshecandoorshecan’tdoinyourschool.SomeadvicetobeapolitevisitoronthegrassandinthegardeninfrontoftheschoolgateonthemainroadintheschoolintheteachingbuildinginthelibraryDon’tparkyourcar!Noparking!signsYouhadbetternotparkinfrontoftheschoolgate.signsNopets!Droplitterintotherubbishbin.Youshouldnottakepetsintoschool.Youshoulddroplitterintotherubbishbin.Don’tsmoke!Nosmoking!signsSavewater,please.You’dbetternotsmokehere.Youshouldsavewater.Bequiet,please.signsYou’dbetterbequietinthelibrary.Noeating,nodrinking.Youhadbetternoteatordrink.Don’tplayfootball!signsDon’tpicktheflowers!Youhadbetternotplayfootball.Youhadbetternotpicktheflowers.DearSuzy,I'mgladtohearthatyouwillcometoourschool.Therearemanyrulesinourschool.First,whenyougettotheschoolgate,you____________________________________________________.Thenonthemainroadofourschool,you________________________________________________________.Onyourleftareourteachingbuildings.Inthem,youcanseemanysigns.You________________________________________.Walkstraighton,youwillseeourlibrary.Whenyoureadbooksinthelibrary,you_________________or_____________________.Nearthelibraryisagarden,youcanplaythere,butyou_________________________or_________________________.Haveagoodtime!Yours,***

Alettertogiveadvice一、单项选择。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.Tell二