Unit5Canyoucometomyparty?SectionA(2a-2c)Canyoucometomypar
ty?Listentothesong!Andtellmeifyoucancometomyparty?
Jeffcan/can’tcometotheparty.Marycan/can’tcometothe
party.Maycan/can’tcometotheparty.Claudiacan/can’tco
metotheparty.Paulcan/can’tcometotheparty.2May3Claudia
1JeffExplanation1.情态动词“haveto”与其他的情态动词如：“can”,“may”“mu
st”和“should”不同。（1）这4个情态动词没有人称的变化,而haveto有。它的第三人称单数为“hasto”
如：Heshouldstudyhard.他应该好好学习。Hehastostudyhard.他不得不好好
学习。（2）这4个情态动词在一般疑问句中将它们放在句首,在否定句中直接在它们后边加not即可。我们以can为例:Canhe
gowithus?他能和我们一起去吗？Hecan’tgowithus.他不能和我们一起去。而“have
to”要加助动词do,does或did才可能完成其疑问、否定句。试将下面三句话分别写成（1）一般疑问句，并做肯定回答。
（2）否定句。1:Theyhavetogototheparty.Dotheyhavetogoto
theparty?Yes,theydo.Theydon’thavetogototheparty.2
.Hehastogotoseethedoctor.Doeshehavetogotoseethe
doctor?Yes,hedoes.Hedoesn’thavetogotoseethedoctor
.3.Shehadtohaveapianolessonyesterday.Didshehavetoh
aveapianolessonyesterday?Yes,shedid.Shedidn’thaveto
haveapianolessonyesterday.3.That’stoobad.Maybeanother
time.太糟了，也许换个时间吧。或Maybenexttime.也许下一次吧。2.Ihavetohelpm
yparents.我不得不帮助我的父母。helpsb.withsth.或helpsb(to)dosth.
上一句我们可以说：Ihavetohelpmyparentswiththehousework.或说Ihav
etohelpmyparents(to)dothehousework.2cPAIRWORKHey,Bush,
canyougotothemoviesonSaturday?I
’msorry,Ican’t.Ihavetoomuchhomeworkthisweekend.That’s
toobad.Maybeanothertime.Sure,Joe.Thanksforasking.Home
workDoasurvey:ZhangQingishavingabirthdaypartythisSunda
yafternoon,invitesomeclassmatestotheparty,andfinishthe
chart,Ifheorshecan’t,askreason.NameCanCan’tReasonsLilycan’tstudyforatestBYEThankyouforlistening |
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