最新必修三-Unit-2-Healthy-Eating-Listening-and-speaking[课件]课件PPT.ppt 48页

'必修三-Unit-2-Healthy-Eating-Listening-and-speaking[课件] Foodweeatmostoftheday:ricebreadnoodleshamburgerspaghetti Whatkindofmeatdoyouusuallyeat?chickenfishporkgooseduckham II.Whatdofoodscontain?fat脂肪sugarsaltfibre纤维protein蛋白质minerals矿物质carbohydrates碳水化合物vitamin维生素water III．Accordingtotheabovechart,doyouknowwhatnutritionthefollowingfoodscontain? fruitsFibre&vitamin&sugarWhichkindoffoodisrichin…? Theyarerichin_______protein Vegetablescontainmuch…Fibre&vitamin fat&sugarThefoodisrichin Doyouknowthefoodmakesourselveshealthyindifferentways? Doyouthinkweshouldeateachkindoffood?Doyouthinkyouareeatingabalanced/healthydiet? HEALTHYEATINGenergyfoods-----giveenergybody-buildingfoods----growbones&muscleprotectivefoods-----Givefibrefordigestionandhealthtraceelements(微量元素)----saltabalanceddiet Whatwillhappenifwedon’teatabalanceddiet? Ilikethethings!!Iofteneatthem! Idonotlikethematall!! fatorYou’llbethin/slim&weak.Maybeyou’llfeeltiredeasily. Toomuchfattyfood----extraenergyToomuchbody-buildingfood----causeproblemsfordigestion.Leadtoillness ListeningonP48Redfoods:STOP(onlyalittle)Orangefoods:BECAREFUL(someeveryday)Greenfoods:GO(someeverymeal)butter,cheese,cream,nuts,cakes,foodsfriedinfatbread,noodles,spaghetti,rice,meat,fish,eggs,tofuallvegetables(forexample:potatoes,cabbage,carrots,tomatoes)allfruits(forexample:watermelons,apples,oranges,pineapples) Questions:1.WhatdoesEmmausuallyhaveforbreakfast,lunchandsupper?2.WhatiswrongwithEmma’sdiet?3.WhyisthedoctorconcernedabouthowmuchEmmaeats?4.HowdoesEmmafeelaboutafterthedoctortellherabouttheresultofnoteatingproperly?5.IfEmmacarriesoninherownway,whatwillhappentoher? 1.WhatdoesEmmausuallyhaveforbreakfast,lunchandsupper?Shehasanorangeandabananaforbreakfast,arollforlunch,andhalfabowlofriceandadishforsupper.Questions: 2.WhatiswrongwithEmma’sdiet?Sheisnoteatingenoughfoodandparticularlyenergy-givingfood.3.WhyisthedoctorconcernedabouthowmuchEmmaeats?Hethinkssheistoothin. 4.HowdoesEmmafeelaboutafterthedoctortellherabouttheresultofnoteatingproperly?Sheishappytogettheadviceonhowtoeatamorebalanceddiet.5.IfEmmacarriesoninherownway,whatwillhappentoher?Sheishappytogettheadviceonhowtoeatamorebalanceddiet. Situation1:Agirl/boyisworriedaboutbeingtoofatandgoestothedoctorforadvice.Situation2:Agirl/boyistoothinandeasilyfeeltiredafterworkorstudy.Soshe/hegoestoseeadoctor.Requirement:Usemodalverbstogiveadvice. DoctorPatient1.What’sthematter?2.Howlonghaveyoubeenlikethis?3.Whatdoyouusuallyhaveformeals?4.Ithinkyououghtto...5.Perhapsyoushould...6.Youmust/mustn’t...7.Isupposeyouhadbetter...…Ithink…Iamworriedabout…Ialwaysfeel…WhatshouldIdo?Whatseemtobethetrouble?6.Can/Couldyougivemesomeadvice?Expressions: DoctorPatient1.What’sthematter?2.Howlonghaveyoubeenlikethis?3.Whatdoyouusuallyhaveformeals?4.Ithinkyououghtto...5.Perhapsyoushould...6.Youmust/mustn’t...7.Isupposeyouhadbetter...…Ithink…Iamworriedabout…Ialwaysfeel…WhatshouldIdo?Whatseemtobethetrouble?6.Can/Couldyougivemesomeadvice?Expressions:Situation1:Agirl/boyisworriedaboutbeingtoofatandgoestothedoctorforadvice.Situation2:Agirl/boyistoothinandeasilyfeeltiredafterworkorstudy.Soshe/hegoestoseeadoctor. Sampledialogue:D:What’sthematterwithyou?P:IthinkI’mtoofatandIwouldliketobethinner.WhatshouldIdo,doctor?(D=doctor;P=patient) D:Ithinkyououghttoeatwellandexercisemore.Youneedtodosomerunningeverymorningbeforebreakfast.Thenyou’llbesuretoloseweight.P:Thankyou,doctor.ButwhatshouldIeat? D:Everydayyoushouldeatplentyoffruitsandvegetables.Youmustnotforgettoeatsomemeatandfishandonlyalittlesugarandfat.P:Whataboutcolaandice-cream?D:No,theycontainalotoffat,sotryanddowithoutthem.Comeback inaweekandIhopeIshallseeyoualittlethinner.P:Thankyou,doctor.Iwill! Wearewhatweeat.(人如其食）ProverbsaboutthehealthyeatingAnappleadaykeepsthedoctoraway(一天一个苹果，医生不来找我。） Firstwealthishealth.(健康是人生的第一财富。） Eathealthily,andbehealthy! Homework1.Givealectureonhealthyfood.2.FinishofftheexerciseUnit2Part4oftheWorkbook. ThankYou 第11章抗超敏反应药 一、概述：定义：用于防治超敏反应的药物。包括：H1受体阻断药肾上腺素受体激动药糖皮质激素钙剂致敏介质阻释药 二、H1受体阻断药 H1受体阻断药第一代：苯海拉明diphenhydramine，苯那君异丙嗪promethazine，非那根曲吡那敏pyribenzamine，扑敏宁氯苯那敏chlorpheniramine，扑尔敏 第二代：西替利嗪cetirizine，仙特敏美喹他嗪mequitazine，甲喹酚嗪阿司咪唑astemizole，息斯敏阿伐斯汀acrivastine，新敏乐咪唑斯汀mizolastine 【药理作用】1．抗外周组胺H1受体作用：H1受体被激动后，可以使胃肠、气管支气管等平滑肌收缩。b.使小血管扩张，通透性增加。当阻断H1受体后就可以出现上述相反的作用。 2．中枢作用：1）镇静与催眠：阻断中枢H1受体所致第一代有中枢抑制作用第二代无中枢抑制作用2）镇吐、抗晕：与中枢抗ACh作用有关。如苯海拉明、异丙嗪3．其他作用有抗胆碱、局部麻醉作用。 【临床应用】1.皮肤粘膜变态反应性疾病：荨麻疹、过敏性鼻炎的首选药昆虫咬伤所致瘙痒和水肿较好接触性皮炎、血清病有效支气管哮喘效差，过敏性休克无效。2.晕动症和呕吐：苯海拉明、异丙嗪、布可立嗪、美克洛嗪对晕动病、妊娠呕吐以及放射病呕吐有镇吐作用。茶苯海明(乘晕宁)应在开车前15-30min服用 【不良反应】1.中枢症状：思睡、头晕、乏力、反应迟钝；避免驾车、船及高空作业2.胃肠道反应：口干、厌食、恶心、呕吐、腹泻或便秘等3.阿托品样作用：4.局部过敏反应：5.心脏毒性反应：可引起心律失常；阿司咪唑过量可致晕厥、心跳停止 二、钙盐：常用药物：葡萄糖酸钙、氯化钙、乳酸钙作用和用途：抗过敏作用：主要用于过敏性疾病也可以用于低钙血症、镁盐中毒补钙治疗。 不良反应及药疗须知：（1）对心脏的毒性作用；（2）局部的刺激作用：稀释后缓慢静脉注射；防止药液漏出到血管外；静脉注射不宜过快或过量。'