Unit3FoodandCultureUsingLanguage(II)課件高中英語(yǔ)人教版選擇性

Unit3Period4UsingLanguage(Ⅱ)Writeaboutahealthydiet新課導(dǎo)入Brainstormsomehealthyeatinghabits.Eatslowly.Don’teattoomuchfatorsugar.Eathealthyfood.Haveabalanceddiet.…1.通過(guò)閱讀有關(guān)健康飲食的說(shuō)明文，能學(xué)會(huì)把握其文本結(jié)構(gòu)、信息要點(diǎn)和語(yǔ)言特色；2.能學(xué)會(huì)使用恰當(dāng)?shù)倪B接詞寫(xiě)一篇有關(guān)健康飲食的文章。課堂學(xué)習(xí)ReadingThinkandshareWhatdoyouthinkmakesupahealthydietvegetablesdairyproductslowfatfood…Whataresomerulesforhealthyeatinghavingmealsontimekeepinganeyeoncalorieintake…Readthepassageandthenmatchthesubheadingswiththeparagraphs.1Paragraph1Paragraph2Paragraph3Paragraph4Paragraph5ASlowEatingisGoodBReducingSweetsisKeyCTheRealKillerisSugarDTheWayYouLookatFoodisMostImportantEKeepItFreshandBalancedReadthepassageandchoosethebestanswers.1.Accordingtothepassage,whatisthebiggestkillerofheartA.Fattyfood. B.Toomuchsugar.C.Fruitandvegetables. D.Animals’meat.2.WhatisthemainpurposeofthepassageA.Tointroduceanewdiettopeople.B.Toanalysethecompositionoffood.C.Toexplaintheeffectofsweetonhealth.D.Totellreaderswhatisahealthydiet.3.WhereisthistextmostlikelyfromA.Anovel. B.Aguidebook.C.Adiary. D.Amagazine.Studythelanguageandstructure.21.WhatarethekeydetailsthatsupporteachpointATherealdriverofpoorhealthisnotsomuchfattyfood,asitissugar.Detail(s):________________________________________________

________________________________________________________________________________________________BMuchofthisextrasugarcomesfromsweetsandsweetdrinks.Detail(s):________________________________________________

________________________________________________InAmerica,peoplewhoreceive25%oftheirdailycaloriesormorethroughsugararetwiceaslikelyto

diefromheartdiseasethanpeoplewhoreceivelessthan10%aday.TheaverageAmericangets1/3ofhisorhersugarthroughsweetdrinksalone.CYoucankeephealthybyconsumingdifferentcategoriesoffreshfood

...

ratherthanprocessedfoods.

Detail(s):________________________________________________________________________________________________________________________________________________________________________________________________DA

fundamentalkeytohealthyeatingistoeatslowly.Detail(s):________________________________________________________________________________________________________________________________________________

________________________________________________①Fruitandvegetablesarefullofvitaminsandfibre.②Processedfoodsoftencontainlessnutrition,andhavehigherquantitiesofsugar,salt,andfatthanfreshingredients.①Peoplewhochewtooquicklyendupeatingtoomuchfoodbecausetheystillfeelhungry.②Eatingslowlyalsoallowsyourbodytodigestyourfoodbetter,andwillallowyoutoenjoyyourfoodmore.2.Underlinethelinkingwordsinthepassagethatintroduceanotherwayofsayingwhatwasalreadymentionedintheprevioussentence.3.Circlethelinkingwordsinthepassagewhichshowthatcontrastingideasarebeingintroduced.putmoresimply,inotherwords,whatthismeansisthathowever,while,ratherthan,ratherLanguagepoints1.【教材原句】Thereismuchdebatenowadaysastowhatmakesupahealthydiet.當(dāng)下，何為健康飲食仍眾說(shuō)紛紜?！驹~匯精講】asto至于，關(guān)于【歸納拓展】asto用來(lái)引出一個(gè)與前文不同的話題，此時(shí)asto可與asfor互換。asto后可接名詞性從句或“疑問(wèn)詞+不定式”結(jié)構(gòu)（有時(shí)可省略），而asfor沒(méi)有此用法。e.g.He’sveryuncertainastowhetherit’stherightjobforhim.e.g.Nobodycoulddecide(asto)whattodo.2.【教材原句】

Thisistrueregardless

ofhowhealthytherestoftheirdietmightbe.無(wú)論他們飲食的其他方面多么健康，都確實(shí)如此?！驹~匯精講】regardlessof不管；不顧【詞匯拓展】①regardlessofcost/expense 不計(jì)成本regardlessoftheresult/consequence 不計(jì)后果regardlessofone’sability 不管能力如何regardlessofone’sraceornationality 不管種族和國(guó)籍②inspiteof 盡管3.【教材原句】Putmoresimply,whilepeoplecontinuetoargueoverwhetherornotfattyfoodisdangerous,wealreadyknowthatsugarisakiller.簡(jiǎn)單地說(shuō)，當(dāng)人們還在為高脂肪食物是否有害而爭(zhēng)論不休時(shí)，我們已經(jīng)知曉糖分是健康殺手。

【句式分析】本句中while引導(dǎo)時(shí)間狀語(yǔ)從句，從句中包含了whether引導(dǎo)的賓語(yǔ)從句，主句中含有that引導(dǎo)的賓語(yǔ)從句?！練w納拓展】whileconj.（1）當(dāng)……時(shí)；與……同時(shí)（引導(dǎo)時(shí)間狀語(yǔ)從句）e.g.Itbegantorainwhilewewereplayingontheplayground.（2）而，然而（連接前后兩個(gè)并列分句，表示對(duì)比）e.g.Mybrotherlikesfootball，whileIpreferbasketball.（3）盡管，雖然（引導(dǎo)讓步狀語(yǔ)從句，用于句首）e.g.WhileIamwillingtohelp，Idonothavemuchtimeavailable.【易混辨析】when，while

與as引導(dǎo)的時(shí)間狀語(yǔ)從句（1）when引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，從句的動(dòng)作可與主句的動(dòng)作同時(shí)發(fā)生，也可先于主句的動(dòng)作發(fā)生。當(dāng)表示兩個(gè)動(dòng)作同時(shí)發(fā)生時(shí)，when可與as，while互換。e.g.Heenteredtheroomwhen/while/asthemeetingwasgoingon.（2）while引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，從句謂語(yǔ)動(dòng)詞用延續(xù)性動(dòng)詞，表示主句的動(dòng)作在從句的動(dòng)作過(guò)程中發(fā)生。e.g.Theyarrivedwhilewewerehavingdinner.（3）as引導(dǎo)時(shí)間狀語(yǔ)從句時(shí)，強(qiáng)調(diào)從句的動(dòng)作與主句的動(dòng)作同時(shí)發(fā)生，可譯為“正當(dāng)……時(shí)”“一邊……一邊……”“隨著”。e.g.Asshegrewolder,shebecamelessactive.4.【教材原句】TheAmericanHeartAssociationrecommendsthatwelimitourselvestolessthan100-150caloriesadayfromsugar...美國(guó)心臟協(xié)會(huì)建議我們將每日糖攝入量限制在100至150卡路里以下……【句式分析】本句中recommend意為“建議”，后面跟that引導(dǎo)的賓語(yǔ)從句，從句使用了省略should的虛擬語(yǔ)氣?！練w納拓展】名詞性從句中的虛擬語(yǔ)氣表示建議、要求、命令等詞所跟的賓語(yǔ)從句用虛擬語(yǔ)氣，即從句謂語(yǔ)用“should+動(dòng)詞原形”，should可以省略。此類詞用于主語(yǔ)從句、表語(yǔ)從句、同位語(yǔ)從句時(shí)，也要用虛擬語(yǔ)氣。e.g.Ourteacheradvisedthatwe(should)makegooduseofoursparetimetolearnEnglish.（賓語(yǔ)從句）e.g.Itisstronglyrecommendedthatmeasures(should)betakentocontrolthehouseprices.（主語(yǔ)從句）e.g.Mysuggestionisthatyou(should)eatjunkfoodaslittleaspossible.（表語(yǔ)從句）e.g.Themanagerputforwardasuggestionthatwe(should)haveanassistant.（同位語(yǔ)從句）【學(xué)法點(diǎn)撥】常見(jiàn)后接虛擬語(yǔ)氣從句的動(dòng)詞：一堅(jiān)持：insist二命令：order，command三要求：demand，require，request四建議：advise，suggest，propose，recommend勿忘：propose，urge與desire【溫馨提示】suggest作“暗示，表明”講時(shí)，insist作“堅(jiān)持說(shuō)”講時(shí)，其后所接的賓語(yǔ)從句用陳述語(yǔ)氣。Itsuggeststhatheisn’twillingtogowithus.那表明他不愿意和我們一起去。5.【教材原句】Inotherwords,ifyouwanttobehealthy,youhavetocutdown

ondesserts,andcutoutsweetdrinksaltogether.換言之，你要想身體健康，就必須少吃甜點(diǎn)，完全禁飲甜飲料。 【詞匯精講】cutdown削減，縮?。?on）；砍倒【詞匯拓展】cutin插嘴，打斷（談話）cutacross/through抄近路穿過(guò)cutaway切除；砍掉cutoff切掉；中斷；使……與外界隔絕cutout刪除；裁剪cutup切碎；使傷心……

6.【教材原句】Processedfoodsoftencontainlessnutrition,andhavehigherquantitiesofsugar,salt,andfatthanfreshingredients.相比新鮮食材,加工食品通常營(yíng)養(yǎng)成分較低,糖分、鹽分和脂肪含量更高。【詞匯精講】quantity

n.數(shù)量；數(shù)額【歸納拓展】①

aquantityof/quantitiesof 大量

inquantity 大量地②

quality n.質(zhì)量③表“大量”的詞組agreatmany/anumberof+[可數(shù)名詞]agreatdealof/alargeamountof+[不可數(shù)名詞]alotof/lotsof/aquantityof/quantitiesof+[可數(shù)名詞/不可數(shù)名詞]（2）agreat/goodmany可直接接可數(shù)名詞復(fù)數(shù)，但當(dāng)復(fù)數(shù)名詞前有the，one’s，these，those等限定詞時(shí)，則必須先加of，再接名詞。7.【教材原句】Thereisnoonetricktohealthyeating.健康飲食沒(méi)有訣竅。【詞匯精講】trick

n.訣竅；計(jì)謀；把戲【歸納拓展】①

playatrickon搞惡作?。婚_(kāi)玩笑②trickvt.欺騙；詐騙

tricksbintodoingsth誘使/騙得某人做某事tricksboutofsth從某人處騙走某物1.It’sacceptabletoplay______(trick)onyourfriendsonApril1.

2.Theoldmanwastricked____sellinghisownhouse.tricksinto8.【教材原句】Itisuptoyoutodecidehowyouwanttolive...要怎樣生活，由你決定……

【詞匯精講】beuptosb.todosth.由某人決定做某事

【詞匯拓展】upto達(dá)到，至多（后面常接數(shù)字）；從事，忙于；（時(shí)間上）一直到uptosb.由某人決定，由某人負(fù)責(zé)

uptosth.勝任某事，適合（做）某事uptonow到目前為止uptodate最新的；新式的WritingUsewhatyouhavelearnttowriteanessayaboutyourowndiet.3YourdietWhatyouate……Whatyoudrank……1.Writedowneverythingyouateanddrankoverthelastthreedays.2.Comparewhatyouhavehadoverthelastthreedayswiththeadvicewritteninthearticle,andanyfactsaboutdietandnutritionthatyouknowtobetrue.EatinghabitsAlistofyourgoodeatinghabits……Alistofyourbadeatinghabits……Maketwolists:AlistofyourgoodeatinghabitsAlistofyourbadeatinghabits3.Ifyouhavebadeatinghabits,makealistofthingsyoucandotogetridofthem.badeatinghabitseattoomucheattoofasteattoohotfoodeattoosweetfoodeattoosaltyfoodbadeatingposture4.Useyournotestowriteyouressay.Youcanstartlikethis:

Overall,IthinkIhavehealthy/unhealthyeatinghabits.AsforthethingsthatIamdoingright,...Still,Ishouldimprovemyeatinghabitsby...Exchangeyourdraftwithapartner.Usethischecklisttohelpyourevisethedraft.Thentakeyourdraftbackandreviseitusingyourpartner'scomments.4?Doesthewriterusedetailstosupporteachpoint?Doesthewriteruseproperlinkingwordstotietheessaytogether?Hasthewriterreallythoughtabouthisorherdietcarefully?DoesthewriterusevividwordstoaddstresstohisorherpointsSample

WritingOverall,IthinkIhavehealthyeatinghabits.AsforthethingsthatIamdoingright,Iameatingavarietyofhealthyfoodsandtryingtoeatfreshfoodasmuchaspossible.AfternotingdownwhatIhaveeatenoverthelastthreedays,Icanseelotsofhealthyandnutritiousthingsonthelist,suchasfish,eggs,fruit,andsalad.Putsimply,mostofmydietcontainsfoodthatisgoodformybody.ThefruitandvegetablesthatIeatarefullofvitaminsandminerals.Andtheycontainmuchmorenutritionthanprocessedfoods.Freshfoodisalsolowerinsugar,salt,andfat.However,Idohavesomebadeatinghabits.TherearesomefoodsthatIshouldnoteattoomuchof.Forexample,riceandbreadarehealthy,buteatingtoomuchcancreatetoomuchunusedenergyandcauseyoutogainweightandfeeltired.Ialsoreallylikeeatingpre-madesteamedbunsandtomatosoupfromthestore,butInowknowtheycontainfartoomuchsugar,salt,andfat.Also,sometypesofmeatcontainalotoffat,soIshouldbecarefulwithhowmuchIconsume.ThesamegoesforthepancakesIbuyonthestreet.Theyaredelicious,buttheyarebynomeanshealthy,andIshouldbecarefulwithhowoftenIc