最新新概念1册第87课教学讲义ppt课件.ppt

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1、新概念1册第87课DictationCompanyLogo课前ReportCompanyLogo练习册P131B2.Shehasalreadytypedyourletters.Shetypedthemanhourago.CompanyLogoWarmupWhatissinx÷n?CompanyLogoLesson87AcarcrashCompanyLogoNewwordsandexpressionsattendantn.服务员，侍者trainattendant列车员assistantCompanyLogobring：给某人带来某物CompanyLogogarage：车库，汽车修理

2、厂在私家车库进行的家中旧货出售,车库售物garagesaleCompanyLogovi./n.碰、撞acarcrash汽车相撞anaircrash飞机坠毁CompanyLogolamp-postgatepost门柱post：支柱。CompanyLogoAcarcrashed.acarcrashAplanecrashed.aplanecrashCompanyLogoIfyouseecrashes,whatwillyoudo?Don’tbenervous.Nevercry/run.Callthepolice.Sendthepeopletothenearesthospital.Comp

3、anyLogoWhyaretheresomanycrashes?Maybe：...CompanyLogoLet'splaymatch!Tellyourfatheroryourmothertobecarefulwhenhe/shedrivesacar!Don’tdrivea______drinking..Don’tt________peoplewhenyoudrive.Don’tdriveq________.Don’tdrivewhenyouareveryt_____.Don’tdriveinthet______weather.fterelephoneuicklyirederrib

4、leCompanyLogoFurthernotesonthetextIsmycarreadyyet?CompanyLogoFurthernotesonthetextHaveyourmechanicsfinishedyet?No,they'restillworkingonit.Let'sgointothegarageandhavealookatit.CompanyLogoFurthernotesonthetextIsn'tthatyourcar?Itwasmycar.CompanyLogoFurthernotesonthetextIdroveitintoalamp-post.Com

5、panyLogoFurthernotesonthetextWell,they'retryingtorepairit,sir.Buttotellyouthetruth,youneedanewcar.CompanyLogoWatchthevideoListenandanswerthequestion:CanthemechanicsrepairMr.Wood'scar?CompanyLogoREVIEWCompanyLogoLesson88Haveyou...yet?they/buyanewhouse/twoweeksagoHavetheyboughtanewhouseyet?Yes,

6、theyhavealreadyboughtanewhouse.Whendidtheybuyanewhouse?Theyboughtanewhousetwoweeksago.2.he/meetMrs.Jones/twoweeksagoCompanyLogo一般过去时的疑问句和否定句Heboughtahouselastyear.Didhebuyahouselastyear?Hedidn'tbuyahouselastyear.CompanyLogo酶具有改善食品品质和加工性能，酶在食品工业中的应用日益深入和广泛，极大地促进了酶制剂工业的发展。然而酶的来源及其性质也关乎食品质量安全，特别

7、是随着生物技术的发展，通过基因工程手段改造部分微生物的基因，从而改变酶蛋白的基本结构，达到强化酶在某方面功能特性目的的做法已成为商业上成功的典范，同时，这种做法给食品酶的应用带来安全隐患。对食品工业用酶制剂生产及应用进行安全卫生管理，从而建立一套科学使用规范及酶制剂安全性评价体系。1酶与食品质量安全酶存在于所有的新鲜食品当中，例如坚果、乳、奶油、干酪、新鲜水果和蔬菜、未烧煮的肉、鱼和蛋中都富含各种酶类。当人们食用这些食品时，相当数量的酶就摄入人体中。在摄入的酶中，不仅有动物和植物