學必求其心得，業必貴于專精學必求其心得，業必貴于專精學必求其心得，業必貴于專精教材習題點撥WARMINGUPSuggestedanswersinclude：·Ifyoueattoomuchenergy。givingfoodyouwillbecomefatandsufferfromhighbloodpressure.·Ifyoueattoomuchbody-buildingfoodyouwillgrowtallerandstrongerbutnotnecessarilyhealthier.·Ifyoueattoomuchprotectivefoodforeverymealyoumaylackenergy.However，withoutprotectivefood（overalongperiodoftime）youcangetseriousillnesseslikescurvy（lackofvitaminC）orrickets（lackofvitaminD）．·Ifyoudon’teatenoughfoodofanyofthethreekindsyoumaygetanorexia（toothin）．PRE。READINGSuggestedanswerstoQuestion1：Agoodmealshouldcontainsomefoodfromeachofthethreecategoriesabove.COMPREHENDINGAnswerkeyforExercise1：1．True.2．False.Itwouldtakelongerthanthat.3．True.4．False.No.Itgavethemprotectivefoodbutnoenergy。givingorbody。buildingfood.5．False。Hismenugavecustomersenergy。givingfood。6．False。Hedecidedtoadvertisethebenefitsofhismenu！SuggestedanswerstoExercise21．LiChangalwayscametohisrestaurantsoifhedidnot，itmeantthatsomethingserioushadhappenedtostophim。2．HedidnotwantYongHuitotellliesandpeopletobelieveher.3．Ifhegavehiscustomerscheaperpricesandadvertisedthebenefitsofhismenu，perhapshiscustomerswouldreturn。AnswerkeyforExercise31．enoughprotectivefood2．plentyofenergy.givingfood3．enoughenergy。givingfood4．plentyofprotectivefoodAnswerkeyforExercise41．WangPengisworriedbecausehisrestaurantisnotasfullasitusuallywas.2．Hefollowshisfriendtoanewlyopenedrestaurantwhichisverypopular。3．Worried，hedoessomeresearchtowinhiscustomersback。Suggestedsummaryofthestory：WangPengisworriedbecausehiscustomersarenotcomingtohisrestaurantastheyusuallydid.Hefollowshisfriendtoanewlyopenedrestaurantwhichofferstomakepeoplethinintwoweeks.Worried，hedoessomeresearchandtriestowinhiscustomersback。SuggestedanswerstoExercise5：IdeaswillvarybutpossibleanswerstoQuestion1are:·WangPengwilloffermoreprotectivefoodwithhismealssuchassalad.·Hewillcookhisfoodinlessoil。·Hewillstopservingicecreamandcolabecausebothofthosehavetoomuchfatorsugar.PossibleanswerstoQuestion2are：·WangPengwilllosehisrestaurant。·YongHuiwillcometohisrestaurantandbecomeveryangrywithhim.·YongHui’scustomerswillbecomesotiredtheywillreturntoWangPeng’srestaurant.SuggestedanswerstoExercise6KindofcookingWhatskillitdescribes1barbecueCookfoodonametalframeoverafire，usuallyoutdoors2roastCooksomethinginanovenoroverafire3stir.fryCookquicklybymovingthefoodaroundcontinuouslyinveryhotoil4fryCooksomethinginhotfatoroil5boilCooksomethinginboilingwaterLEARNINGABOUTLANGUAGEDiscoveringusefulwordsandexpressionsAnswerkeyforExercise11lie2getawaywith3raw4curiosity5customer6benefitAnswerkeyforExercise22oughtto4diet5raw8balanced9energetic10slim1．becomethinner—loseweight3．beinglaughedatbyherfriends—losingface6．feltsosadandhopelessaboutherself—lostheart7．wasunwillingtovisitmaymore—lostinterestinvisitingAnswerkeyforExercise31√pear；×cream（fatandalltheothersarefruit)2√sugar；×mutton(meatandalltheothersareenergy-givingfood)3√bacon；×cabbage（vegetableandalltheothersaremeat）4．√strawberry；×eggplant（vegetableandalltheothersarefruit）DiscoveringusefulstructuresAnswerkeyforExercise1Thenbylunchtimetheywouldallbesold.（Possibility）Bynowhisrestaurantoughttobefullofpeople。(Possibility）Whatcouldhavehappened？（Possibility)Nothingcouldbebetter。.。（Possibility）Somethingterriblemusthavehappenedif...（Guessing）I'llhelpyouloseweight...（Intention）Hecouldnotbelievehiseyes.（Ability)Perhapsheshouldgotothelibraryandfindout.(Duty）HecouldnothaveYongHuigettingawaywithtellingpeoplelies！(Intention)Hehadbetterdosomeresearch！(Duty)EventhoughhercustomersmightgetthinaftereatingYongHui'sfood.。。(Possibility)Theywouldbecometiredveryquickly。（Intention）。。。hecouldwinhiscustomersback。(Ability）AnswerkeyforExercise21haveto；should；shouldn't;needn't；don'thaveto/needn't/shouldn’t;will2haveto；mustn't3oughtto;shouldSuggestedanswerstoExercise31．Ihavetotakethebooktothelibrarian'sdesk。ThenIneedtogivehermycardsoshecanregisterthebookonhercomputer。Ihavetoreturnthebookbeforethedatestampedonthecover.2．Imustgotothedentalhospitalandseethedentist.OfcourseIhavetomakeanappointmentfirst。ThenIshouldcleanmyteethbeforeIgointothedentist’ssurgery.Itwillbemorethoughtfulforhim/herifIcandothis.3．First，Ioughttoarriveingoodtimeattheairport。Second，ImustwritethenameofthepersonIdon'tknowonanameboardanddisplayitsoeveryonecanseeit.Finally，Ihavetowaituntiltheplanehasarrivedandallthepeoplefromthatflighthaveappeared。IfIstillhavenotseenhim/herIshouldgototheinformationcentreandaskthemtomakeanannouncement.4．TogetadiscountinashopIneedtofindouttheoriginalprice。Thenitisimportanttolaughandwonderaloudifthispriceisajokeornot.FinallyIshouldofferalowerpriceandarguewiththesalespersonuntiltheyoffermeamorereasonableprice。IfthepriceisstilltoohighIdon'thavetoacceptit。Icanalwayswalkaway.Sometimesifthesalespersoniskeentomakeasalehe/shewilloffermeamorereasonableprice.5．Whenyoumeetthehostessinyourfriend’shomeyououghttogreetherpolitely.Youshouldspendafewminutestalkingtoher。Forexampleyoucanthankherforinvitingyoubutyoudon’tneedtocomplimentheronherdressorherhouse.However，yououghtnottospeaktohertoolongasshewillbebusyandhavemanypeopletogreet.Attheendofthepartyyoumustthankherforalovelyevening.USINGLANGUAGEListeningSuggestedanswers：QuestionAnswerWhichillnessdowestillhavetoday？ObesityWhyisitwedon’tgetscurvyandricketstoday?1morevarieddiet:vitaminCforscurvy；vitaminDforrickets2moreunderstandingofwhatweneedtostayhealthyWhogottheseillnessesandwhy?Scurvy：sailorswhodidnoteatfreshfruitandvegetablesRickets：childrenwhodidnotgetenoughsunshineoroilyfishtoeatLISTENINGTEXTHOWANUNBALANCEDDIETCANAFFECTYOURHEALTHWangPengwenttothelibrary，wherehehappenedtomeetanexpertondiets。Heaskedhimforhelp.WP＝WangPengE＝ExpertWP：Hello.Canyouhelpme，please？Iwanttofindoutmoreaboutbalanceddiets.E：Ofcourse.Abalanceddietneedsenergyfoodlikericeandnoodles，body。buildingfoodlikefishandmeatforproteinandfat，andprotectivefoodlikefruitandvegetablesforfibreandvitamins.WP:Yes，butdoesitmatterhowmuchrice，noodlesandsugarIeat?E：Yes。Ifyoueattoomuch，youmaybecomeobese.Thismeansyouaretoofatanditmayleadtootherillnesses.However，ifyoudon’teatenoughrice,noodlesorsugar，you’llgettiredeasily。WP：Isee.I'llbecarefulaboutthat。Doesitmatterhowmuchfish,meatorcheeseIeat？E:Toomuchcanalsomakeyoufat，butifyoudon’teatenough,yourboneswon'tgrowstrong。Alongtimeago，childrenwhodidn'teatenoughvitaminDandbody。buildingfooddidn'tgrowstraightlegs.Theygotanillnesscalledrickets。WP:Ohdear!Dopeoplestillhavetheproblem?E:Sometimes.WP：Thenwhataboutfruitandvegetables？HowmuchshouldIeat？E：Yououghttoeataboutfivebigspoonfulsofdifferentfruitandvegetableseveryday.WP：Really？Ididn'tknowthat.E:Yes。Inthe18thcenturysailorsatseausedtofindthattheirteethfelloutandtheyhadbadspotsontheirskin。Theygotitbecausetheydidn’teatenoughfruitandvegetables.Theillnessiscalledscurvy。WP：Goodness！Whataboutnow？E：It'sveryrarenow。Peopleeatmorefruitandvegetables。Youneedprotectivefoodlikethatforclearskinandbrighteyes.WP：Thankyouverymuch。Youhavegivenmealottothinkabout。AnswerkeyforExercise2WangPengisdoingresearchtofindouthowanunbalanceddietcanaffectyourhealth，soyouneedtoeatabalanceddietifyouaretostayhealthy。AnswerkeyforExercise3AnswerkeyforExercise4OwnerofrestaurantProblemswithfoodofferedWhatfoodisneededWangPengtoomuchfatandenergy.givingfoodmorefruitandvegetablesYongHuitoomuchfruitandtoomanyvegetablesmoremeat,fish，cheeseandeggsaswellasriceandnoodlesReadinganddiscussingAnswerkeyforExercise1：1．ShefeltangrybecauseshethoughtWangPenghadcameintoherrestauranttospyonher.2．(a）WangPengshowedthathewantedtocooperateandnotcompetewithYongHui.(b)Theysucceededinfindingamenuthatprovidedabalanceddiet.3．（a)Theycooperatedsuccessfullyinbusiness。（b）Theylikedeachother.AnswerkeyforExercise2：shouted，explained，added,admittedSpeakingandwritingSamplewriting:HongYan'sFamilyRestaurantofLocalDishesOurrestaurantisspecialforseveralreasons：→Nameofrestaurantanditstypeofdishes●itisfamilyownedandrun●weserveabalanceddiet●wespecializeindumplingsandbeefnoodlesoup●wecookourdishesfromstarttofinisheveryday●onlytheverybestingredientsareincluded●watchforourfreshpotofcow'sboneseverydaytoshowwehavemadefreshbeefstockforthesoup●ourrecipesareafamilysecretandcannotbefoundelsewhereinotherrestaurants●forourfirstweekweareofferingadiscountof20％Onceyouhavetriedourfood，youwillneverwanttogoanywhereelse！→Theadvantagesofourrestaurant●thefoodandmenu●qualityofcookingandpreparation●secretrecipe-aspecialfeature●cheaperpricestoencouragecustomers→Overallassessment練習冊教學指導LISTENINGTEXTEATINGWISELYEmmaisvisitingDoctorPan’ssurgery。E＝EmmaD＝DoctorPanPart1D：Hello.What’sthematter？E：Idon'tfeelwell。IkeepfeelingdizzyandIgettiredveryeasily。D：Oh，dear！Youlookabitthintome.Areyoueatingwell?E：Ohyes。Ihaveanorangeandabananaforbreakfastandarollforlunch。Ieathalfabowlofriceandadishofvegetableintheevening。D：Well，infactyouaretoothin！Itseemsthatyouarenoteatingenough.Youneedmoreenergy.givingfood.E:Butdoctor，ifIeattoomuchIfeelsick.D:Now，younglady，youmustlistentome。Yourdietisnotgivingyouenoughenergy，andifyoucarryonthiswayyou'llbecomeseriouslyill。E:Oh,mygoodness!Part2D：Letmetellyouhowtoeatwellbutstillstaythin。Therearethreetypesoffood.Theyworkliketrafficlights。Thefirsttypeoffoodis“red”andyoumustn’teattoomuchofit,becausethisfoodcontainsalotoffat，sugarandsalt。E：Really?Canyougivemesomeexamples?D:Butter，cheese，cream，cakes，foodfriedinfat。E：OK.D:Thesecondkindoffoodis“orange"andyoushouldeatsomeeveryday.Itincludesbread,noodles,spaghetti，rice，meat，fish，eggsandtofu.E：Well，Ieatsomeofthosethings.D:Thelasttypeoffoodis“green”andyoushouldeatsomeateverymeal。Itincludesallfruitandvegetables.E：Thankyou，DoctorPan。Doesanybodyelse，putfoodintocolourgroupsasyoudo?D：Yes.Manyscientistsdo，andallfoodinthesupermarketsinEnglandnowiscolouredinthisway.E：That'sveryinteresting.I’llfollowyouradvice.AnswerkeyforExercise1：Emmaissufferingfromanorexia.AnswerkeyforExercise2：1Shehasanorangeandabananaforbreakfast，arollforlunch，andhalfabowlofriceandadishforsupper.2Sheisnoteatingenoughfoodandparticularlyenergy。givingfood.3Hethinkssheistoothin。4Sheishappytogettheadviceonhowtoeatamorebalanceddiet。AnswerkeyforExercise3：Redfood(onlyalittleeveryday)Orangefood（someeveryday）Greenfood（someeverymeal）buttercheesecreamnutscakesfoodfriedinfatbreadnoodlesspaghettiricemeatfisheggstofuAllvegetables（forexample：potatoes，cabbage，carrots，tomatoes）．Allfruits（forexample:watermelons，apples，oranges，pineapples）USINGWORDSANDEXPRESSIONSAnswerkeyforExercise1：1curiosity；curious2Sugary；sugar3balanced；balance4limit；limited5marry;married6weak；weakness7digestion;digestAnswerkeyforExercise2:1combined2diet，putonweight，digest3sighed4Beforelong5cuttingdown，benefitSuggestedanswerstoExercise3：Flavoursandtastes：sweet，salty,crispy，tastless，sugary，spicy,sourWaysofcooking：fry，roast，boil，barbecueVegetables:eggplant,carrot，pea，cabbage，radish，turnip，cucumber，mushroomFruits：grape,peach，plum,mango,melon，lemon，pineappleMeat：mutton,beef,kebab，baconSeafood：shrimp，crab,lobsterDairyfood：cheese,cream,milkSeasoning：mustard，pepper，garlic,sugar，vinegarStaplefood:noodle，spaghetti，bread,rice，cornDrink：coffee，mineralwater，tea，juice，wine，colaAnswerkeyforExercise4:1tell2ask3say4speak5tell6talk7discuss8tell9sayAnswerkeyforExercise5:1Theweaknessofthisdietisthatithastoomuchfatandsugar；itsstrengthisthatithasplentyofenergy-givingfood。2Theshopkeeperistryingtowinhiscustomersbackwithadiscount。3Ifyoudon’tsaysorryforyourmistake,theywon'tletyougetawaywithit.4Hehasbeenindebtforalongtime。Howtoearnhislivingisabigproblem.5WhenIwaswaitingformyfriend,Isuddenlyspiedamannotfarawayglaringatme.6Idon’twanttolietoyou，butIhavetosaythathisintelligenceislimited。7Expertssayeatingcarrotsbenefitsyoureyes。8Iusuallyeatdumplingswithalittlevinegar，whichIbelievehelpsmedigestthefood。USINGSTRUCTURESSuggestedanswerstoExercise1：1haveto,should,should2oughtto，should3mustn’t，would4haveto5can’t，can'tLISTENINGTASKLISTENINGTEXTTHEPROBLEMOFTHEMCDONALD’SRESTAURANTTinaistalkingtoLiQianaboutwhetheranewMcDonald’srestaurantshouldbebuilt。T＝TinaLQ＝LiQianT：Well，whatdoyouthink？McDonald'sisgoingtobuildanewrestaurantinourhometown.LQ:Surelynot！Ihateallthatexpensive，tastelessfood.Wherearetheygoingtobuildit？T:Overtherewherethatoldrestaurantis。LQ：Butwherearewegoingtoeatourlocaldishes？Ilovetoeatthemthere.It’ssofriendly.Whyaretheyclosing？T:McDonald’sofferedthatoldrestaurantalotofmoney，sotheywantedtosell.Ithinkwewillallbenefit.Anoldpartoftownwillbeimprovedandweshallhavemorejobs。LQ：Don'tyoubelieveit！I’vereadaboutthesekindsofrestaurants.Theyprovideaterribledietforyoungchildren。HowdoesMcDonald’sknowthatwewanttheirrestauranthere？Nobodyhasaskedouropinion。T:Well，sinceyouareagainstit，whynottakepartinameetingtovoteonwhetherwewantMcDonald'sornot？Youmaygivethereasonswhyyoudon'twantittobebuilt。I’llgivethereasonsforbuildingit。LQ：Thatseemsaverygoodidea。Let’sdothat。AnswerkeyforExercise2:NameFororagainstReasonsTinaFor1Anoldpartoftownwillbeimproved。2Theywillhavemorejobs。LiQianAgainst1Shehatesallthatexpensivetastelessfood。2Sheloveslocaldishes.3McDonald’sservesaterribledietforyoungc