Unit6TVprogrammesGrammar课件-译林版九年级英语上册

Unit6TVprogrammes九年级上册英语Grammar

Grammar学习目标1、学会运用if引导的条件状语从句。2.学会运用unless引导的条件状语从句。Presentation1.如果你是个足球迷，你不会想要错

过这周的节目。

Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.2.这种情况将会持续下去除非人们停止为了皮毛和骨头而猎杀老虎。

Thesituationwillcontinueunlesshumansstophuntingtigersfortheirfurandbones.3.如果你很容易被吓坏，别看了。

Ifyougetscaredeasily,donotwatchit.

Weuseiftotalkabouttheresultofapossibleaction.Wemakesentenceswithiflikethis:If-clause(simplepresenttense)Mainclause(will/may/might/…+infinitive)Ifyouareafootballfan,youwillnotwanttomissthisweek’sprogramme.Ifyouareananimal-lover,youmayfeelsadaboutit.Payattention:Weputacommaaftertheif-clausewhenitisthefirstpartofasentence.

If-clause(simplepresenttense)Mainclause(will/may/might/…+infinitive)Ifyouenjoysolvingmysteries,youmightlikethisfilm.

Whatwillhappenif...?Millieisthinkingaboutherself,herfriendsandTVprogrammes.Completethesentenceswiththecorrectformsoftheverbsinbrackets.A1Workouttherule!Weoftenusethesimple__________(future,present)tenseintheif-clause.Weneeda_________(comma,fullstop)afterthein-clausewhenitisthefirstpartofasentence.presentcomma

AskingaboutanimalsMilliewatchedadocumentaryaboutanimals.HelpMillieanswerherfather’squestionswiththehelpofthewordsinthebox.Dad:Whatwillabeardoifit’sindanger?Millie:Ifabear(1)____________,it(2)___________people.Dad:Whatwillapolarbeardoifit’shungry?Millie:Ifapolarbear(3)______________,it(4)___________fishfromthewater.attackcatchhuntliveprotectwalkisindangerwillattackishungrywillcatchvt./vi.

攻击，进攻n.

北极熊Dad:Whatwillelephantsdoifthey’rethirsty?Millie:Ifelephants(5)_____________,they(6)___________untiltheyfindariver.Dad:Whatwilltigersdoiftheyliveinthewild?Millie:Tigers(7)___________fortheirownfoodifthey(8)______________.attackcatchhuntliveprotectwalkarethirstywillwalkwillhuntliveinthewildDad:Whatwilltigersdoiftheyhavebabies?Millie:Tigers(9)___________asafamilyifthey(10)____________.Dad:Whatwillmalewolvesdoifthere’sdanger?Millie:

Malewolves(11)____________theirfamiliesifthere(12)___________.attackcatchhuntliveprotectwalkwilllivehavebabieswillprotectisdangeradj.

雄性的UsingunlessWecanuseunlesstosaythatsomethingcanonlyhappenorbetrueinaparticularsituation.e.g.Hewon’tcometothepartyunlessyouinvitehim.

Sometimeswecanuseif...nottoreplaceunless.e.g.Thesituationwillcontinueunless

humansstophuntingthemfortheirfurandbones.→Thesituationwillcontinueif

humansdonotstophuntingthemfortheirfurandbones.

e.g.Unlessitrainstomorrow,wearegoingtoplayfootballinthepark.→Ifitdoesnotraintomorrow,wearegoingtoplayfootballinthepark.Theunless-clausecancomefirstorafterthemainclause.e.g.Unlessyoutryyourbest,youwillnotrealizeyourdream.Youwillbelateunlessyouleaverightnow.

cdfabepresent

条件状语从句

条件状语从句主要由if或unless引导：

if条件句

1)if条件句：条件句用于陈述语气，表示

假设的情况可能发生，其中

if

是“如果”

的意思。e.g.Ifitrains,wewillstayathome.

如果下雨我们就待在家里。Grammar2)

用法：(1)条件状语从句通常由连词if引导，意为“如

果、假如”，主句不能用be

going

to表示将

来，而应该用shall,will。e.g.If

you

leave

now,

you

will

never

regret

it.

如果你现在离开，你永远都不会后悔。(2)if

“如果”，引导条件状语从句，主句用一般

将来时，从句则用一般现在时。e.g.If

it

rains

tomorrow,

I

shan’t

climb

the

hills.

如果明天下雨，我就不爬山了。(3)主句是祈使句或含有情态动词，从句也用一

般现在时。e.g.Please

call

me

if

he

comes

next

Sunday.

如果他下周日过来请打电话给我。注意:

宾语从句中的if与条件状语从句if的区

别。宾语从句中的if“是否”相当于

whether,引导宾语从句,时态需根据语境确定。如果主句用一般现在时,从句可以根据具体情况选用时态,如果主句用一般过去时,从句必须用过去时的某种形式。unless条件句unless引导的条件句，表示强烈的否定。翻译为“除非……”“非……不可”。e.g.You

will

fail

unless

you

work

harder.

你不努力就会失败的。=Youwillfailifyoudonotworkharder.注意:unless

从句里的谓语只能是肯定

式,因为本身unless表示否定。单项选择。1.If

there

________

no

buying

and

sellingof

animals,

there

_______

no

killing

innature.

A.

is;

will

be

B.

will

be;

will

be

C.

is;

is

D.

will

be;

isAExercises2.I’m

waiting

for

my

friend._______,

I’ll

go

shopping

alone.

A.

If

she

comes

B.

If

she

won’t

come

C.

If

she

doesn’t

come

C3.Wearegoingtoplaybasketball_______itrains.A.ifnot