Unit3FoodandCultureUsingLanguage(II)课件高中英语人教版选择性

Unit3Period4UsingLanguage(Ⅱ)Writeaboutahealthydiet新课导入Brainstormsomehealthyeatinghabits.Eatslowly.Don’teattoomuchfatorsugar.Eathealthyfood.Haveabalanceddiet.…1.通过阅读有关健康饮食的说明文，能学会把握其文本结构、信息要点和语言特色；2.能学会使用恰当的连接词写一篇有关健康饮食的文章。课堂学习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.当下，何为健康饮食仍众说纷纭。【词汇精讲】asto至于，关于【归纳拓展】asto用来引出一个与前文不同的话题，此时asto可与asfor互换。asto后可接名词性从句或“疑问词+不定式”结构（有时可省略），而asfor没有此用法。e.g.He’sveryuncertainastowhetherit’stherightjobforhim.e.g.Nobodycoulddecide(asto)whattodo.2.【教材原句】

Thisistrueregardless

ofhowhealthytherestoftheirdietmightbe.无论他们饮食的其他方面多么健康，都确实如此。【词汇精讲】regardlessof不管；不顾【词汇拓展】①regardlessofcost/expense 不计成本regardlessoftheresult/consequence 不计后果regardlessofone’sability 不管能力如何regardlessofone’sraceornationality 不管种族和国籍②inspiteof 尽管3.【教材原句】Putmoresimply,whilepeoplecontinuetoargueoverwhetherornotfattyfoodisdangerous,wealreadyknowthatsugarisakiller.简单地说，当人们还在为高脂肪食物是否有害而争论不休时，我们已经知晓糖分是健康杀手。

【句式分析】本句中while引导时间状语从句，从句中包含了whether引导的宾语从句，主句中含有that引导的宾语从句。【归纳拓展】whileconj.（1）当……时；与……同时（引导时间状语从句）e.g.Itbegantorainwhilewewereplayingontheplayground.（2）而，然而（连接前后两个并列分句，表示对比）e.g.Mybrotherlikesfootball，whileIpreferbasketball.（3）尽管，虽然（引导让步状语从句，用于句首）e.g.WhileIamwillingtohelp，Idonothavemuchtimeavailable.【易混辨析】when，while

与as引导的时间状语从句（1）when引导时间状语从句时，从句的动作可与主句的动作同时发生，也可先于主句的动作发生。当表示两个动作同时发生时，when可与as，while互换。e.g.Heenteredtheroomwhen/while/asthemeetingwasgoingon.（2）while引导时间状语从句时，从句谓语动词用延续性动词，表示主句的动作在从句的动作过程中发生。e.g.Theyarrivedwhilewewerehavingdinner.（3）as引导时间状语从句时，强调从句的动作与主句的动作同时发生，可译为“正当……时”“一边……一边……”“随着”。e.g.Asshegrewolder,shebecamelessactive.4.【教材原句】TheAmericanHeartAssociationrecommendsthatwelimitourselvestolessthan100-150caloriesadayfromsugar...美国心脏协会建议我们将每日糖摄入量限制在100至150卡路里以下……【句式分析】本句中recommend意为“建议”，后面跟that引导的宾语从句，从句使用了省略should的虚拟语气。【归纳拓展】名词性从句中的虚拟语气表示建议、要求、命令等词所跟的宾语从句用虚拟语气，即从句谓语用“should+动词原形”，should可以省略。此类词用于主语从句、表语从句、同位语从句时，也要用虚拟语气。e.g.Ourteacheradvisedthatwe(should)makegooduseofoursparetimetolearnEnglish.（宾语从句）e.g.Itisstronglyrecommendedthatmeasures(should)betakentocontrolthehouseprices.（主语从句）e.g.Mysuggestionisthatyou(should)eatjunkfoodaslittleaspossible.（表语从句）e.g.Themanagerputforwardasuggestionthatwe(should)haveanassistant.（同位语从句）【学法点拨】常见后接虚拟语气从句的动词：一坚持：insist二命令：order，command三要求：demand，require，request四建议：advise，suggest，propose，recommend勿忘：propose，urge与desire【温馨提示】suggest作“暗示，表明”讲时，insist作“坚持说”讲时，其后所接的宾语从句用陈述语气。Itsuggeststhatheisn’twillingtogowithus.那表明他不愿意和我们一起去。5.【教材原句】Inotherwords,ifyouwanttobehealthy,youhavetocutdown

ondesserts,andcutoutsweetdrinksaltogether.换言之，你要想身体健康，就必须少吃甜点，完全禁饮甜饮料。 【词汇精讲】cutdown削减，缩小（+on）；砍倒【词汇拓展】cutin插嘴，打断（谈话）cutacross/through抄近路穿过cutaway切除；砍掉cutoff切掉；中断；使……与外界隔绝cutout删除；裁剪cutup切碎；使伤心……

6.【教材原句】Processedfoodsoftencontainlessnutrition,andhavehigherquantitiesofsugar,salt,andfatthanfreshingredients.相比新鲜食材,加工食品通常营养成分较低,糖分、盐分和脂肪含量更高。【词汇精讲】quantity

n.数量；数额【归纳拓展】①

aquantityof/quantitiesof 大量

inquantity 大量地②

quality n.质量③表“大量”的词组agreatmany/anumberof+[可数名词]agreatdealof/alargeamountof+[不可数名词]alotof/lotsof/aquantityof/quantitiesof+[可数名词/不可数名词]（2）agreat/goodmany可直接接可数名词复数，但当复数名词前有the，one’s，these，those等限定词时，则必须先加of，再接名词。7.【教材原句】Thereisnoonetricktohealthyeating.健康饮食没有诀窍。【词汇精讲】trick

n.诀窍；计谋；把戏【归纳拓展】①

playatrickon搞恶作剧；开玩笑②trickvt.欺骗；诈骗

tricksbintodoingsth诱使/骗得某人做某事tricksboutofsth从某人处骗走某物1.It’sacceptabletoplay______(trick)onyourfriendsonApril1.

2.Theoldmanwastricked____sellinghisownhouse.tricksinto8.【教材原句】Itisuptoyoutodecidehowyouwanttolive...要怎样生活，由你决定……

【词汇精讲】beuptosb.todosth.由某人决定做某事

【词汇拓展】upto达到，至多（后面常接数字）；从事，忙于；（时间上）一直到uptosb.由某人决定，由某人负责

uptosth.胜任某事，适合（做）某事uptonow到目前为止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