重难点突破08情态动词中考英语语法复习重难点释疑与突破Word格式.docx
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当然可以)/Youmaygonow.(现在你可以走了)/Itmaybeinyourpocket.(它可能在你的衣袋里)
④must表示“必须”、“一定”的意思。
表示“必须”时否定形式是mustn’t;
表示“一定”时,否定形式是“can’t”如:
Wemustbeverycarefulwhenwecrosstheroad.(我们过马路时一定要非常小心)/ItmustbeJack.(那准是杰克)/Ihaven’tseenKatetoday.Shecan’tbehere.(我今天没有看到过凯特,她不可能在这里)
[注意]用must(必须)进行提问时,肯定回答用must,否定回答用needn’t;
用must(一定)进行提问时,肯定回答仍用must,但是否定回答用can’t.如:
Mustwecleantheroombeforeweleave?
–Yes,youmust.或No,youneedn’t.(我们走之前必须要打扫房间吗?
是的,必须打扫。
/不,不需要。
)/Mustshebeintheromm?
–Yes,shemust.或No,shecan’t.(她一定在房间里吗?
是的,一定。
/不,不可能在。
)
⑤“haveto”表示“不得不”、“必须”。
We’llhavetoleavenowforitisverylateatnight.
haveto的疑问形式是:
助动词+…+haveto,否定形式是:
助动词+not+haveto或者用needn’t.如:
Doyouhavetostayuntil8o’clock?
(你得呆到8点钟吗?
)/Youdon’thavetodoso.(=Youneedn’tdoso.)(你不用这么做)
⑥shall在问句中,可表示征求对方意见,与第一人称连用;
在陈述句的第二、三人称的主语后或表示“命令”、“警告”、“允许”等。
Shallwegotothezoothisweekend?
(我们这个周末去动物园好吗?
)/Heshallbringhisownbooknexttime.(他下次必须带自己的书来)
⑦should可表示“劝告”、“建议”、“惊奇”等意思。
Weshouldspeaktooldpeoplepolitely.(我们应该礼貌地对老人讲话)
⑧will表示“意愿”、“决心”等意思,一般与第二人称连用。
Willyoupleaseclosethedoorforme?
(请你替我把门关上好吗?
)/Iwillteachyoualesson.(我要教训你一顿)
⑨would表示过去的“意愿”、“决心”等。
Hewouldsitnearthefireeverytimehereturnedhome.(每次他回到家中总要坐在火炉边)
would也可以表示现在的情况,表达说话人向对方提出的要求,语气比“will”婉转、客气。
在日常会话中,“我想要…”通常用“Iwouldliketo”或“Ishould(I’d)liketo”来表示。
Wouldyouliketohavearestatthemoment?
(你现在想要休息一下吗?
)
would还可以表示过去经常发生的事情。
Everyyearparentswouldtelltheirchildrenabouttheboywhowouldsavehispeople.(每一年父母们总是向孩子们讲述这个将会拯救他的人民的男孩的事)
⑩need表示“需要”,用于疑问句或否定句。
“need”作实义动词时,在肯定、否定、疑问句中都可以用。
Heneedn’tdoitinsuchahurry.(他不需要如此匆忙地做这件事)/Heneedssomehelp.(他需要一些帮助)/Hedoesn’tneedtobringhisfootballsocksthen.(那么他就无须带上足球袜了)
⑾dare是“敢”的意思,用法几乎与“need”完全相同,即在疑问句和否定句中,可以作情态动词,后面用不带“to”的动词不定式。
在肯定句中和实义动词一样,后面的动词不定式要带“to”。
HowdareyousayIamafool?
(你竟敢说我是个傻瓜?
)/Hedidn’tdaretotouchtheredbutton.(他不敢触碰那个红色的按钮)
⑿‘dbetter(do)(“最好是”)一般也当作情态动词使用,否定式是:
’dbetternot(do).如:
You’dbettersithereandsaynothing.(你最好坐在这儿不讲话)/You’dbetternotspeakbecauseheissleeping.(你最好不要讲话因为他正在睡觉)
二、其他情态动词的用法
1.should表示“应该”,否定为shouldn’t,无时态变化。
Studentsshouldn’tbeallowedtobringmobilephonestoschool.
Oughtto属于半情态动词,也表示“应该”。
Weoughttofinishtheworktoday.
2.would表“将来,宁愿”,可作为will的过去式,构成过去将来时态,常用于宾语从句中。
Iwouldstudyhard.
SheaskedmewhereIwouldgotomorrow.
3.Hadbetter表示“最好...”,为半情态动词,无时态变化,后接动词原形。
(重点考点)
Wehadbetternotarguewithourparents.
【重难点突破】
基本用法演练
1.—Mustwewearschooluniformedeverywhere?
—No,we________.
A.
needn'
t
B.
mustn'
C.
can'
t
2.—Allen,shallwegotothebookstorethisafternoon?
—I'
msorry,David,butI________meetmycousinatthetrainstation.
haveto
can
may
D.
could
3.—Mum,whydoIhavetowashhandssomanytimesaday?
—Foryourhealth,you______betoocareful.
shouldn'
4.—Howdeliciousthemealis!
DidKangkang'
smothercookit?
—It____beher.Thesedaysshehasbeeninapoorvillagetohelpthepeoplethere.
won'
5.Myclassmateisjumpingsofar!
I______believemyeyes.
6.—
Itakethemagazineoutofthereadingroom?
—I'
msorryyou
.
Could;
couldn'
Must;
Will;
can'
May;
7.Accordingtothenotice,guestsatthishotel__________usethesportscenteratnoextracost.
should
must
need
8.—IsthatredschoolbagMary'
s?
—It____behers.Shehatesthatcolor.
might
9.—Canyoudriveontheright-handsideoftheroadinChina?
—
That'
sarule.
Yes,wecan
Yes,wemust
Yes,weshould
10.—Ididn'
tseeyouatJim'
spartylastweek.
—Ihadtoworkthatevening,soI_________go.
couldn'
11.Withtheirnewlock,you________searchforkeysinyourbaganymore.Isn'
titcool?
12.Accordingtotherule,usedbatteries_____bedroppedintheredbinforharmfulwastes.
need
may
13.Thedesignerhastriedeverypossiblewaytomaketherobotlight,soyou_____worryaboutitsweight.
14.Themagazine________Lucy'
s.Wecanseehernameonthecover.
tbe
mustbe
tbe
15.Jerrydidn'
tpaymeback,buthepromisedthathe________thisSunday.
could
would
should
16.—MustIgoouttohavedinnerwithyou,Mum?
—No,you________,mydear.You'
refreetomakeyourowndecision.
17.You_______stopwhenthetrafficlightsturnred.
18.Sinceyouhavedrunksomuchwine,you______driveyourcar.
wouldn'
19.Milliespokeinaverylowvoice,butI
understandwhatshesaid.
might
20.Thisbook_________beLucy'
s.Look!
Hernameisonit.
21.—
Iswimhere?
msorry.Children
swimalonehere.It'
sverydangerous.
must
Can;
mustn'
Can'
t;
can
22.—Why______weclosethatchemicalfactory?
—Becauseithascausedlotsofpollution.Weneedbetterenvironment.
23.—IsawJohnintheparkthismorning..
—It_____behim.HehasgonetoHongKong.
must
24.Dogs_____runthroughsoccergamesatthepark.It'
sdangerous.
25.—Mum,I'
vesignedforthebox.What'
sinit?
mnotsure.It_____beapresentfromyouruncle.
will
26.—Idon'
tcarewhatpeoplethink.
—Well,you___.You'
renotaloneinthisworld.
27.—Mum,mayIgoswimmingnow?
—Yes,dear,butrememberthatyou___________gowithyourdad.
28.—Mum,
Iplayfootballthisafternoon?
—Sure,butyou
finishyourhomeworkfirst.
may;
could
can;
29.—What'
swrongwithJudy?
Shehasbeenabsentfortwodays.
—Oh,she_____beill.Let'
sgotoaskMr.Green.
would
30.You______walktoclosetotheedgeofthehillbecauseyoumightfallandhurtyourselves.
答案与解析
1.A
【解析】句意:
——在任何场合,我们一定要穿制服吗?
——不,我们不一定。
t意为“不需要,不必”;
t“一定不”;
t“不能,不可能”。
根据No可知,此处的意思是“不一定”,故选A。
2.A
但我不得不去火车站见我的堂兄弟。
A不得不,B能,C可以,D能,是can的过去式,由sorry,可