2019-2020學(xué)年高中英語Unit2HealthyeatingSectionBLearningaboutLanguage課件新人教版必修3

Unit2

HealthyeatingSectionB

LearningaboutLanguage核心詞匯

詞匯一

consult（1）v.咨詢；請教；商量，商議（2）vt.查閱，查詢◆教材原句

However，asshewassoafraidofbeinglaughedatbyherfriends，shedidnotconsultadoctor...然而，因?yàn)樗侨绱撕ε率艿脚笥褌兊某靶?，所以她沒有去咨詢醫(yī)生……◆要點(diǎn)必記consultsb.aboutsth.就某事向某人咨詢 consultwithsb.與某人商議consultadictionary查詞典 consultthetimetable查時(shí)間表◆學(xué)法點(diǎn)撥如果請教、咨詢的對象比較權(quán)威，一般用consult（vt.）；而如果和地位平等的對象一起商量，則多用consultwith。題組練·領(lǐng)悟方法◆歸納拓展“查詞典”的表達(dá)還有：refertoadictionary，lookup...inthedictionary單句寫作(1)［2015·天津卷］Ifyouhaveanydoubtsaboutyourhealth，you’dbetter_________________（咨詢你的醫(yī)生）atonce.(2)Whynot

（與……商議）Frankaboutthismatter?Yousee，twoheadsarebetterthanone.單句語法填空(3)［詞匯復(fù)現(xiàn)］Youcanconsultthetouristguide

thecustomsofthiscountry.consultyourdoctorconsultwith

about單元語法情態(tài)動(dòng)詞（Ⅱ）要點(diǎn)一oughtto/oughtnotto（1）oughtto意為“應(yīng)當(dāng)，應(yīng)該”，跟should用法基本相同，沒有人稱、數(shù)和時(shí)態(tài)的變化。（2）oughtto的否定式是oughtnotto或oughtn’tto，疑問式是把ought放在主語前。（3）oughttohavedone過去本該做某事（而沒有做）oughtnottohavedone過去本不該做某事（卻做了）◆詞語辨析oughtto與should·一般說來，兩者可換用，只是oughtto的語氣略強(qiáng)。·oughtto多表示由于法令、行為準(zhǔn)則、道德責(zé)任等客觀情況而“應(yīng)該”做某事?！hould含有個(gè)人意見，強(qiáng)調(diào)主觀看法。翻譯下列句子并指出oughtto的用法(1)Weoughttoprotectanimals.(2)Tryphoningthatcustomer—heoughttobehomebynow.(3)Yououghttobalancecareerandfamily.單句寫作(4)［詞匯復(fù)現(xiàn)］You

（不應(yīng)該捉弄……）thedisabled.(5)［詞匯復(fù)現(xiàn)］—

（我該動(dòng)身）tomorrow?—Yes，yououghtto.(6)［詞匯復(fù)現(xiàn)］Themoneytogiveanaward

（本該足夠了）.(7)You

（本不該告訴）herthenews.(1)我們應(yīng)該保護(hù)動(dòng)物。（責(zé)任或義務(wù)）oughtnottoplaytricksonOughtItosetoff

oughttohavebeenenough

oughtnottohavetold(2)給那位顧客打個(gè)電話試試，他現(xiàn)在應(yīng)該到家了。（推測）(3)你應(yīng)該平衡好事業(yè)與家庭之間的關(guān)系。（建議或勸告）要點(diǎn)二haveto/don’thaveto/mustn’t（1）havetohaveto強(qiáng)調(diào)客觀需要，意為“必須，不得不”。它可以用于不同的時(shí)態(tài)，其疑問句式和否定句式由助動(dòng)詞do/does/did構(gòu)成。（2）don’thaveto和mustn’thaveto的否定式don’thaveto表示沒有義務(wù)或沒有必要做某事，意為“不必”，相當(dāng)于needn’t，可回答以must開頭的疑問句。而must的否定式mustn’t表示“禁止，不準(zhǔn)”。選詞填空（haveto/don’thaveto/mustn’t）(1)［詞匯復(fù)現(xiàn)］Ifyouearnmorethan￡5，000，youwill

paytax.(2)Dowe

finishittoday?(3)［詞匯復(fù)現(xiàn)］You

consultthedictionary.Youcanguessthesewords’meanings.(4)［詞匯復(fù)現(xiàn)］Cars

parkinfrontoftheentrance，andtheymustbeparkedattheparkinglot.車輛不準(zhǔn)停在入口處前面，它們必須停在停車場。(5)［詞匯復(fù)現(xiàn)］—Mustwedressuptogototheparty?—No，you

.haveto

haveto

don’thaveto

mustn’tdon’thaveto

要點(diǎn)三need/needn’t（1）need意為“需要，有必要”，既可作情態(tài)動(dòng)詞，也可作實(shí)義動(dòng)詞。need作情態(tài)動(dòng)詞 (1)沒有人稱和數(shù)的變化 (2)后接動(dòng)詞原形 (3)常用于否定句或疑問句 (4)否定式為neednot/needn’tneed作實(shí)義動(dòng)詞 (1)有人稱和數(shù)的變化 (2)后接名詞、代詞、動(dòng)名詞、帶to的不定式 (3)用于陳述句、否定句或疑問句均可 (4)否定式和疑問式要借助助動(dòng)詞do/does/did◆學(xué)法點(diǎn)撥need作實(shí)義動(dòng)詞時(shí)常用于下列句式：sb.need（s）todosth.某人需要做某事（主語與do為主動(dòng)關(guān)系）sth.need（s）doing/tobedone某事/某物需要被……（主語與do為被動(dòng)關(guān)系）（2）needn’thavedone表示“本沒有必要做某事（卻做了）”。◆誤區(qū)警示（1）用作情態(tài)動(dòng)詞的need常用于疑問句或否定句，對于以need開頭的疑問句的否定回答可用needn’t，但是肯定回答不能用need，而用must。（2）以must開頭的一般疑問句，肯定回答用must，否定回答用needn’t或don’thaveto。單句寫作(1)Ilovetheweekend，becauseI

（不必早起）onSaturdaysandSundays.(2)［詞匯復(fù)現(xiàn)］

（我需要召集）thechildrentogetheratonce?(3)

（你需要）anyhelp?(4)［詞匯復(fù)現(xiàn)］We

（不必打扮）.Thepartyhasbeencalledoff.單句語法填空(5)［詞匯復(fù)現(xiàn)］Thegreenbeansneed

（harvest）.needn’tgetupearly

NeedIgather

Doyouneeddon’tneedtodressup

harvesting/tobeharvested

(6)Mybikeneeds

（mend）.(7)You

（water）theflowers，foritisgoingtorain.句型轉(zhuǎn)換(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基礎(chǔ)知識(shí)自測Ⅰ用適當(dāng)?shù)那閼B(tài)動(dòng)詞填空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.綜合練·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·江蘇卷］Noone

bemoregenerous;hehasaheartofgold.13.［2014·江蘇卷］Byknowingpreciselywhatyouarereceivingandwhatyouaremissingouton，youought

beabletomakebetter-informed，morereasonabledecisions.14.Thedoor

open，nomatterhowhardshepushed.15.Sincenobodygavehimanyhelp，he

havedonetheresearchonhisown.couldn’tcouldmustcan/couldtowouldn’tmustmust學(xué)科素養(yǎng)提升Ⅱ語篇填空A主題：人與自然（環(huán)境保護(hù)）體裁：說明文話題：根據(jù)膳食調(diào)整種植結(jié)構(gòu)［2018·全國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主題：人與自我（生活）體裁：說明文話題：健康

Dietandthewayoflifeareoftenaproblemforteenagers.However，ifyoueattherightfoodandexercise1

（regular），youcanfeelbetter，lookbetterandhavemoreenergy，sohealthyeatingalong2

regularexerciseisproperlytheonlywaytobecomefit.

Asateenager，itisimportanttogiveyourbodytheenergy3

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