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，業必貴于專精備課資料BackgroundInformation1.HealthydietMostpeople,youngorold,don'tknowhowtoplanahealthydiet.Somepeopleeattoomuch，andsomeeattoolittle.Manypeopledon’teatbreakfastatallexceptforacupofcoffee,andmostpeopleeataveryheavyandgreasydinner。Oneimportantfactorinahealthydietisbalance。Abalanceddietcontainsenoughamountsoffoodforthethreemealsofadayandavarietyoffoodssuchasvegetables，fruits，eggs，milk，cereals(谷類食品)andmeat.Forbreakfast,whichstartsyouoffonalongday’swork，youneedenoughfoodtoprovideyouwithenoughenergy.Lunchisequallyimportant。Ifyoudon’tstoreenoughenergyatlunchtimeforalongafternoonofwork,youwilleasilyfeeltired。Butafterdinner，normallyyourelaxyourselfanddon'tneedmuchenergy，soit'spreferabletohavealightdinner。Moreover,varietiesoffoodgiveyoudifferentkindsofnutrientsyourbodyneeds。Ifyourdietlacksvariety，youareboundtobedeficientinnutrition。Yourdietisessentialtoyourhealth.Ifyouoftenfeeltiredorfallsick，it’slikelythatyoudon’thaveabalanceddiet。2。FastfoodIt’sSaturdayafternoonandyouaredowntownwithyourfriends.You’vebeenshoppingallmorningandyou’rehungry!Butwhereareyougoingtoeat？There'sagoodchancethatyou’llgotoafastfoodrestaurantlikePizzaHut,BurgerKingorWendy's。Thebiggestproblemischoosingonebecausetherearesomany。Inthelastthirtyyearsfastfoodhasbecomeamajorpartofourdiets.Fastfoodischeap,easytofindandeasytoeat.Youcaneveneataburgerwhileyouaredriving.Trydoingthatwithabowlofspaghetti(意大利面條）!FamiliesstopatPizzaHutonthewayhomefromadaytrip.YoungpeoplemeetatMcDonald'sforaburgeratlunchtime。BusyofficeworkersbuynicesandwichesatSubway(賽百味三明治店).It’ssoquickandeasy。Butisfastfoodhealthy？RichardBentonisanutritionistandhesaysthatfastfoodcanbehealthyfood.“Mostfastfoodrestaurantshavehealthychoiceslikesaladsandthinchickensandwiches,”hesays，“FastfoodisOKaslongasyoudon’teattoomuchofit。”Peoplewhodoeattoomuchfastfoodcanhavehealthproblems.IntheUnitedStates，300000peopleayeardiefromillnessrelatedtoobesity(肥胖癥）.TwentypercentofchildrenintheUnitedStatesareoverweight.TheproblemhasspreadasWesternfastfoodhasbecomepopularincountrieslikeChina，IndiaandJapan.FivetotenpercentofChinesechildrenarenowoverweight。Also，somefastfoodshavealotoffatandsugar.Somehealthexpertsbelievethathigh—fatandhigh—sugarfoodschangechildren’sbehavior。ArecentstudyinJapanfoundthatbadlybehavedchildrenatemorefastfoodthanwell—behavedchildren.Thegoodnewsisthatfastfoodischanging。Itisbecominghealthier.Thai，Turkish(土耳其的),JapaneseandFilipinofastfoodisbecomingpopularintheUnitedStates.YoucanhaveaquicksnackinElephantJump(Thai)，Jollibee(Filipino）orYoshinoya(Japanese）ifyoudon’twantapizza.3.SnacksEvenifwechoosenutritiousfoodforourmainmeals,weprobablystillneedtorefuelnowandthen。Wecangiveourbodyandbrainmoreenergybyeatingsnacks.Goodsnacksshouldnothavetoomuchfatorsugar。Thatmeansthatanapple,abanana,oranorangeisagoodchoice,butabarofchocolateorabagofpotatochipsisnot.Fruitgivesuscarbohydrates,whichourbodyandbrainuseforenergy。TheyalsogiveusfibreandVitaminC。Mostfruitsarenaturallysweetandwecaneatthemjustthewaytheyare—allwehavetodoiscleanorpeelthem.Fruitisnottheonlyhealthysnack。Therearemanyrecipesforsimpleandhealthysnacksthatcanbepreparedinabout15—20minutes。Herearetworecipesyoucantry.ShaomaiIngredients：pork，blackmushrooms,choppedgreenonions，greenbeans，andShaomaiskins.Cuttheporkandtheblackmushroomsintopieces。Mixthepork,mushrooms，beansandthechoppedonionsinabowl。Fillandfoldtheskins.SteamtheShaomaioverboilingwaterfor7or8minutes.ChickenRoll-upsIngredients：softbread,chicken,bacon,onetomato,lettuce,cheese.Cookthechi