河南省2024八年級英語下冊Unit4Whydon'tyoutalktoyourparentsPeriod3SectionA(GrammarFocus-4c)課件新版人教新目標(biāo)版

Unit4Whydon’tyoutalktoyourparents?Period3SectionA(GrammarFocus-4c)Whydon'tyou...?和Whynot...?Whydon’tyou..?意為“你為什么不.....呢?”，通常用來提出建議，相當(dāng)于Whynot...?。Whydon’tyou和Whynot后都跟動詞原形。對其作肯定回答時，常用Goodidea./Soundsgreat.等;

對其作否定回答時，可根據(jù)實際情況作答。例句:l.

—你為什么不買這輛自行車呢?—_____________buythisbike?/___________buythisbike?—哦，它太貴了?！猈ell.itistooexpensive.Whydon’tyouWhynotWhydon'tyou...?和Whynot...?[拓展]“Whynot?”還可以單獨使用，意為“好啊!”“可以呀!”，通常用在口語中，表示贊同。例句:2.—咱們?nèi)ヅ郎桨?。—Let'sgomountainclimbing.—好啊!天氣這么好?！猒________?Theweatherissonice.Whynot連詞until意為“到.....時，直到....為止”,具體用法如下:用于肯定句,引導(dǎo)時間狀語從句,主句謂語動詞用延續(xù)性動詞。例句:3.我將待在這里直到你回來。I

will

stayhere________youcomeback.用于否定句，構(gòu)成“not...until…”結(jié)構(gòu),意為“直到......才......”,引導(dǎo)時間狀語從句,主句謂語動詞一般用短暫性動詞。例句:4.昨天晚上John直到他媽媽下班回來才睡覺。Yesterdayevening.John_______sleep_______hismomcamebackfromwork.untildidn’tuntil連詞sothat可引導(dǎo)結(jié)果狀語從句,意思是“因此，所以”;sothat也可引導(dǎo)目的狀語從句,意為“為了,目的是”,從句中常含有情態(tài)動詞can,could,may,might,should等。例句:5.他起得很早，因此趕上了首班公共汽車。Hegotupveryearly_______

hecaughtthefirstbus.例句:6.李老師大聲講課以便每個學(xué)生都能聽清。Mr.Lispeaksloudly_________everystudentcanhearclearly.sothatsothat連詞although意為“雖然，盡管”，相當(dāng)于though，引導(dǎo)讓步狀語從句。although用作連詞時不能和but連用，但可跟yet,still等連用。例句:7.他雖然獨自生活，但他很愉快。_____________helivesalone.yetheishappy.=Helivesalone,________heishappy.Althoughbut一、用until,sothat或although填空(注意大小寫)1.[2023濱州改編]—IthinkIamtheshyestinmyclass.WhatshouldIdo?—Bemoreactiveinclass__________youcanimproveyourabilitytoexpressyourself.sothat2.[2023武威改編]Let’swait________therainstops.3.[2023新疆改編]__________thetimeskeepchanging,youngpeopleinChinahaveshownthesamepromise.untilAlthough二、根據(jù)漢語意思完成句子,每空一詞4.你必須在一周內(nèi)把這些書還給圖書館。Youmust________thesebooks________thelibraryinaweek.returnto5.學(xué)生抄襲別人的作業(yè)是不對的。________notrightforstudents________________others’homework.It’stocopy6.我太累了以至于再也走不動