Unit2 Topic2 Section D-2023-2024学年八年级英语上册【趣味课堂】（仁爱版）

It’smadeofpotatoes.Itbelongstothestaple.Manypeopleeatiteverymeal.Akindofbreadwithvegetableormeat.ReviewGuessthefood!LookatthepicturesandreadthewordsasquicklyaspossiblequickresponseHowtogiveadvice?

should/shouldn’tWe

must/mustn’tLead-inMakesentenceswiththestructuresinthebox.

should/shouldn’tWe

must/mustn’tWeshouldtakeshowersoften.______________________________________Weshouldwashthehandsbeforemeals.shower

n./v.

淋浴have/takeashower=take/haveshowersMakesentenceswiththestructuresinthebox.

should/shouldn’tWe

must/mustn’t___________________________________________Weshouldoftenopenthewindowtokeeptheairfresh.___________________________________________Wemustn’tdrinksourmilk.keepsb./sth.+adj.让某人/某物处于某种状态souradj.

酸的Makesentenceswiththestructuresinthebox.

should/shouldn’tWe

must/mustn’t___________________________________________Weshouldtidyourroomseveryday.___________________________________________Wemustn’tspit

inpublic.tidy

vt.整理，收拾adj.整齐的，整洁的sourv./n.

吐痰；唾沫inpublic在公共场合Listenandnumberthefollowingpictures.1153426Whatshouldwedotokeephealthy?Workingroups,writedownthegoodhabitsandbadhabitsaroundyou.PracticeGoodhabits4.Washinghandsbeforemeals.1.Takingawalkaftermeals.2.Goingtobedearlyandgettingupearly.3.Drinkingenoughwatereveryday.Badhabits3.Goingtoschoolwithoutbreakfast.1.Eatingtoomuchmeat.2.Goingtobedlateandgettinguplate.4.Throwinglitteraround.Canyougivemoresuggestionsonkeepinghealthy?1.Wemusthaveenoughfoodtokeephealthy.2.Wemusthavetherightkindsoffood.3.Weshouldhavedifferentfood.4.Weshouldn’teattoolittleortoomuch.Completethepassagewiththecorrectwords.Somepeoplethinkthatsmoking________(must/can)helphimrelax.Infact,smokingisreally__________(healthy/unhealthy).Doyouknowthatthere______(is/are)over4000chemicalsincigarettes?Thesechemicalsare_______(good/bad)forourbodies.They_____(must/can)causecancerandotherdiseases.Thesmokefromcigarettesharms____________(only/notonly)smokersbutalsootherpeople.It’scalled“second-handsmoke”andit______(can/can’t)bemoredangerousandhashigherrisks.Smokersshouldn’tusesmokingtohelpthemrelax.They______(must/mustn’t)giveupsmokingassoonaspossible.canunhealthyarebadcannotonlycanmust2考点：（1）infact“事实上，实际上”=asamatteroffact（2）unhealthy“不健康的”

beunhealthy=benothealthy是不健康的1.Infact,smokingisreallyunhealthy.Languagepoints2.Thesmokefromcigarettesharmsnotonlysmokersbutothers.考点：

harm

既可以作动词，也可以作名词，其形容词为harmful。“伤害”的表达：harmsb./sth.(v.)=doharmtosb./sth.(n.)=beharmfultosb./sth.(adj.)考点：

句中的notonlyAbutB“不但A而且B”省略了also，(=notonlyAbutalsoB=notonlyAalsoB)，A、B是两个并列成分，在词性和在句子中的功能方面都是相同的。

但A、B作主语时，由B来决定谓语的形式（即遵循就近原则）。eg.Notonlyyoubutalsoyourbrotherneedstokeepawayfromsmokinganddrinking.不仅你而且你的弟弟都需要远离抽烟和酗酒。（连接两个主语）eg.Mysistercannotonlyplaythepianowellbutalsoplaychesswell.（连接两个谓语）

2.Thesmokefromcigarettesharmsnotonlysmokersbutothers.Languagepoints及时练习：

1.Notonlyyoubutalsoshe________(learn)art.2.NotonlyLilybutalsoI________(be)goodatEnglish.3.Notonlyyourfriendsbutourfriends________(like)icecream.4.Jackcanplaytheguitarwell,Hecanalsoplayerhuwell.（改为同义句）Jackcan__________playtheguitarwill__________playerhuwell.learnsamlikenotonlybutalso考点：useAtodoB=useAfordoingB意为“用A去做B”eg.Ourteachersoftenusecomputers_______(give)uslessons=Ourteachersoftenusecomputersfor________(give)uslessons.3.Smokersshouldn’tusesmokingtohelpthemrelax.Languagepoints4.Theymustgiveupsmokingassoonaspossible.考点：

as...aspossible“尽可能......地”，可以与as....asonecan互换使用。eg.Weshouldbeasfriendlytoothersaspossible.=Weshouldbeasfriendlytoothersas_______.togivegivingwecanProject1.Choosetheanswertoeachquestionaccordingtoyourlifestyle.()1.Howoftendoyouwalktoschool?

A.Never.B.Sometimes.C.Always.()2.Howoftendoyoueatcandy?

A.Often.B.Seldom.C.Never.()3.Howlongdoyouusuallysleepatnight?

A.Lessthan7hours.B.Morethan10hours.C.7-10hours.()4.Howoftendoyouexercise?

A.Lessthanthreetimesaweek.B.Threetosixtimesaweek.C.Everyday.()5.Howoftendoyoueatfruitandvegetables?

A.Never.B.Seldom.C.Often.()6.HowlongdoyouwatchTVeveryday?

A.Morethan4hours.B.2-4hours.C.Lessthan2hours.ProjectTestingHowHealthyYouAreScores:A=1pointB=2pointsC=3pointsTotalscore:_________ConclusionWhatyoushoulddotokeephealthy.(6-9)Unhealthy(10-13)Justso-so(14-18)HealthyReadthroughSectionsA-Candfillintheblankswiththecorrectwords.GrammarYou_______throwlitteraround.Hethinkssmoking____helphimrelax.It____evencausecancer.You_____takesomemedicine._____Iborrowyournewspaperandshowittomyfather?ModalVerbs(IⅠ):must/mustn’t;may;canmustn’tcanMaycanmustFunctions________uplateisbadforyourhealth.Howterrible!It’s________foryourhealth.Don’tread_____thesun.Itwillkeepyou______duringtheday.ingoodactiveStaying一、can/couldcanbeableto1.can

表示能力，意为“能，会”。没有人称和数的变化，其过去式为could。

只有一般现在时和一般过去时两种时态。

beableto表示能力，强调通过努力而获得的能力。可用于多种时态：

一般现在时：am/is/areableto

一般过去时：was/wereableto

一般将来时：willbeableto

现在完成时：have/hasbeenableto2.can/could表示请求、允许(could更委婉），意为“可以”。

eg.Can/CouldIsmokehere?3.can表示推测，常用于否定句和疑问句中，意为“可能”。

eg.—Canthatmanbehindthetreebeyourteacher?—No,hecan’tbeourteacher.Isawourteacherintheofficejustnow.

“不可能是”闯关练习：

1.Mikecanplaythepiano.(改为否定句)Mike_________thepiano.2.LilycansingJapanesesongs.(改为一般疑问句)____Lily_____Japanesesongs.3.—Jim,_______yousingEnglishsongs?—Yes,I_______.

A.could;canB.could;couldC.can;canD.can;could4.—Couldheswimwhenhewastenyearsold?—______.

A.No,hecan't.B.Yes,hecan.C.Yes,hedoes.D.No,hecouldn't.5.We’ll______learnEnglishwellsoon.

A.canB.couldC.isabletoD.beabletocanplayCansingCDD二、may/might肯定回答否定回答1.may表示请求、许可，多用于肯定句和疑问句。没有人称和数的变化，

其过去式为might。在表示请求的疑问句中，might比may更委婉。

由may引导的一般疑问句（此时可与can互换），其肯定回答：Certainly./Ofcourse./Yes,youcan.（may引起的问句一般避免用may做肯定回答，常用can）。其否定回答：No,youcan’t./No,youmustn’t.

eg.—MayIparkhere?—I’msorryyoucan’t/mustn’t.2.may表示推测，常用于肯定句中，暗含不确定，意为“也许，可能”。eg.Itmaybesunnylateron.一会可能会天晴。闯关练习：---MayIhaveawordwithyou?---No,you_______.I'mbusytoday.A.needn'tB.can'tC.don’thavetoB闯关练习：John____cometothepartytonight,butheisn'tverysureyet.A.canB.mayC.hastoBD.must解析：can用于推测的“可能”，多用于否定和疑问句；must是最有把握的肯定推测“一定”；从后文“但他还不能肯定”可知，“他可能会来”，答案选may（表示“可能”，暗含不确定）。三、mustmustmustn’t1.must表示义务，可用于肯定句和疑问句，意为“必须”。

mustn’t

表示不许或禁止，意为“不准，严禁”。

eg.Youmustfinishyourhomeworkbeforegoingtobed.Youmustn’tthrowlitteraround.2.must表示有把握的推测，用于肯定句，意为“一定”。

eg.Thelightison,sohemustbeathomenow.3.由must引起的一般疑问句，其肯定回答：Yes,youmust.其否定回答：No,youneedn’t./No,youdon’thaveto.（不能用mustn’t回答）

肯定回答否定回答闯关练习：You_____crosstheroadwhenthetrafficlightsarered.A.can'tB.mustn'tC.needn’tBD.shouldn’t

1.—WatchingTVtoomuch_______badforyoureyes.—I’llgotobedrightaway.

A.is B.areC.wasD.be2.—Ifyoufeel_______,youshouldgotoschool.

A.bad B.worse C.better D.good3.—Ican’tkeepmyselfactiveduringtheday.—You_______takemoreexercise.

A.mustnot B.mustbeC.needto D.maybe4.—Youhadbetteraskyourbrother_______playingcomputergames.It’sbadforhim.

A.to