2019-2020学年高中英语Unit2HealthyeatingSectionBLearningaboutLanguage课件新人教版必修3

Unit2

HealthyeatingSectionB

LearningaboutLanguage核心词汇

词汇一

consult（1）v.咨询；请教；商量，商议（2）vt.查阅，查询◆教材原句

However，asshewassoafraidofbeinglaughedatbyherfriends，shedidnotconsultadoctor...然而，因为她是如此害怕受到朋友们的嘲笑，所以她没有去咨询医生……◆要点必记consultsb.aboutsth.就某事向某人咨询 consultwithsb.与某人商议consultadictionary查词典 consultthetimetable查时间表◆学法点拨如果请教、咨询的对象比较权威，一般用consult（vt.）；而如果和地位平等的对象一起商量，则多用consultwith。题组练·领悟方法◆归纳拓展“查词典”的表达还有：refertoadictionary，lookup...inthedictionary单句写作(1)［2015·天津卷］Ifyouhaveanydoubtsaboutyourhealth，you’dbetter_________________（咨询你的医生）atonce.(2)Whynot

（与……商议）Frankaboutthismatter?Yousee，twoheadsarebetterthanone.单句语法填空(3)［词汇复现］Youcanconsultthetouristguide

thecustomsofthiscountry.consultyourdoctorconsultwith

about单元语法情态动词（Ⅱ）要点一oughtto/oughtnotto（1）oughtto意为“应当，应该”，跟should用法基本相同，没有人称、数和时态的变化。（2）oughtto的否定式是oughtnotto或oughtn’tto，疑问式是把ought放在主语前。（3）oughttohavedone过去本该做某事（而没有做）oughtnottohavedone过去本不该做某事（却做了）◆词语辨析oughtto与should·一般说来，两者可换用，只是oughtto的语气略强。·oughtto多表示由于法令、行为准则、道德责任等客观情况而“应该”做某事。·should含有个人意见，强调主观看法。翻译下列句子并指出oughtto的用法(1)Weoughttoprotectanimals.(2)Tryphoningthatcustomer—heoughttobehomebynow.(3)Yououghttobalancecareerandfamily.单句写作(4)［词汇复现］You

（不应该捉弄……）thedisabled.(5)［词汇复现］—

（我该动身）tomorrow?—Yes，yououghtto.(6)［词汇复现］Themoneytogiveanaward

（本该足够了）.(7)You

（本不该告诉）herthenews.(1)我们应该保护动物。（责任或义务）oughtnottoplaytricksonOughtItosetoff

oughttohavebeenenough

oughtnottohavetold(2)给那位顾客打个电话试试，他现在应该到家了。（推测）(3)你应该平衡好事业与家庭之间的关系。（建议或劝告）要点二haveto/don’thaveto/mustn’t（1）havetohaveto强调客观需要，意为“必须，不得不”。它可以用于不同的时态，其疑问句式和否定句式由助动词do/does/did构成。（2）don’thaveto和mustn’thaveto的否定式don’thaveto表示没有义务或没有必要做某事，意为“不必”，相当于needn’t，可回答以must开头的疑问句。而must的否定式mustn’t表示“禁止，不准”。选词填空（haveto/don’thaveto/mustn’t）(1)［词汇复现］Ifyouearnmorethan￡5，000，youwill

paytax.(2)Dowe

finishittoday?(3)［词汇复现］You

consultthedictionary.Youcanguessthesewords’meanings.(4)［词汇复现］Cars

parkinfrontoftheentrance，andtheymustbeparkedattheparkinglot.车辆不准停在入口处前面，它们必须停在停车场。(5)［词汇复现］—Mustwedressuptogototheparty?—No，you

.haveto

haveto

don’thaveto

mustn’tdon’thaveto

要点三need/needn’t（1）need意为“需要，有必要”，既可作情态动词，也可作实义动词。need作情态动词 (1)没有人称和数的变化 (2)后接动词原形 (3)常用于否定句或疑问句 (4)否定式为neednot/needn’tneed作实义动词 (1)有人称和数的变化 (2)后接名词、代词、动名词、带to的不定式 (3)用于陈述句、否定句或疑问句均可 (4)否定式和疑问式要借助助动词do/does/did◆学法点拨need作实义动词时常用于下列句式：sb.need（s）todosth.某人需要做某事（主语与do为主动关系）sth.need（s）doing/tobedone某事/某物需要被……（主语与do为被动关系）（2）needn’thavedone表示“本没有必要做某事（却做了）”。◆误区警示（1）用作情态动词的need常用于疑问句或否定句，对于以need开头的疑问句的否定回答可用needn’t，但是肯定回答不能用need，而用must。（2）以must开头的一般疑问句，肯定回答用must，否定回答用needn’t或don’thaveto。单句写作(1)Ilovetheweekend，becauseI

（不必早起）onSaturdaysandSundays.(2)［词汇复现］

（我需要召集）thechildrentogetheratonce?(3)

（你需要）anyhelp?(4)［词汇复现］We

（不必打扮）.Thepartyhasbeencalledoff.单句语法填空(5)［词汇复现］Thegreenbeansneed

（harvest）.needn’tgetupearly

NeedIgather

Doyouneeddon’tneedtodressup

harvesting/tobeharvested

(6)Mybikeneeds

（mend）.(7)You

（water）theflowers，foritisgoingtorain.句型转换(8)—NeedIgatherinformationabouttheplan?—

.（作出肯定回答）/

.（作出否定回答）(9)—MustIaskforherpermission?—

.（作出肯定回答）/

.（作出否定回答）mending/tobemended

needn’thavewatered

Yes，youmustNo，youneedn’t

Yes，youmustNo，youneedn’t/don’thaveto基础知识自测Ⅰ用适当的情态动词填空1.［2019·天津卷］Theprofessorwarnedthestudentsthatonnoaccount

theyusemobilephonesinhisclass.2.

Ihaveawordwithyou?Itwon’ttakelong.3.Althoughyou

findbargainsinLondon，it’snotgenerallyacheapplacetoshop.4.Itwassadtomethatthey，sopoorthemselves，

bringmefood.5.Lifeisunpredictable；eventhepoorest

becometherichest.6.Istillremembermyhappychildhoodwhenmymother

takemetoDisneylandatweekends.7.I’veorderedsomepizza，sowe

worryaboutcookingwhenwegethometired.综合练·提升能力shouldCancanshouldmay/mightwouldneedn’t8.He

sleep，althoughhetriedto，whenhegotonsuchahuntforanideauntilhehadcaughtit.9.WhenIwasachild，I

watchTVwheneverIwantedto.10.Harryisfeelinguncomfortable.He

havedrunktoomuchatthepartylastnight.11.Thechildren

havelostinthewoods；otherwisetheywouldhavebeenatthelakesidecampasscheduled.12.［2019·江苏卷］Noone

bemoregenerous;hehasaheartofgold.13.［2014·江苏卷］Byknowingpreciselywhatyouarereceivingandwhatyouaremissingouton，youought

beabletomakebetter-informed，morereasonabledecisions.14.Thedoor

open，nomatterhowhardshepushed.15.Sincenobodygavehimanyhelp，he

havedonetheresearchonhisown.couldn’tcouldmustcan/couldtowouldn’tmustmust学科素养提升Ⅱ语篇填空A主题：人与自然（环境保护）体裁：说明文话题：根据膳食调整种植结构［2018·全国Ⅱ卷］DietshavechangedinChina—andsotoohasitstopcrop.Since2011，thecountry1

（grow）morecornthanrice.Cornproductionhasjumpednearly125percentover2

past25years，whilericehasincreasedonly7percent.

Atasteformeatis3

（actual）behindthechange：Animportantpartofitscornisusedtofeedchickens，pigs，andcattle.Anotherreasonforcorn’srise：Thegovernmentencouragesfarmerstogrowcorninsteadofrice4（improve）waterquality.hasgrown

theactually

toimproveCornuseslesswater5

riceandcreateslessfertilizer（化肥）runoff.Thisswitchhasdecreased6

（pollute）inthecountry’smajorlakesandreservoirsandmadedrinkingwatersaferforpeople.

AccordingtotheWorldBank，Chinaaccountsforabout30percentoftotal7

（globe）fertilizerconsumption.TheChineseMinistryofAgriculturefindsthatbetween2005—whenthegovernment8

（start）asoil-testingprogram9

givesspecificfertilizerrecommendationstofarmers—and2011，fertilizerusedroppedby7.7milliontons.Thatpreventedtheemission（排放）of51.8milliontonsofcarbondioxide.China’sapproachtoprotectingitsenvironmentwhile10

（feed）itscitizens“offersusefullessonsforagricultureandfoodpolicymakersworldwide，”saysthebank’sJuergenVoegele.than

pollution

global

startedthat/which

feeding

B主题：人与自我（生活）体裁：说明文话题：健康

Dietandthewayoflifeareoftenaproblemforteenagers.However，ifyoueattherightfoodandexercise1

（regular），youcanfeelbetter，lookbetterandhavemoreenergy，sohealthyeatingalong2

regularexerciseisproperlytheonlywaytobecomefit.

Asateenager，itisimportanttogiveyourbodytheenergy3

needs.Forahealthydiet，youshouldeatmostlyrice，bread，vegetablesandfruit.Youalsoneedtodrinkalotofwater—sixtoeightglassesada