Lesson29DNA—TheStoryofYou.ppt

Lesson29DNA TheStoryofYou 乐凯中学奚玉岭 交流预习CheckingPreparation 1 Checknewwordsinpairs LeadersreadEnglishwords Learnersspell generalrepeatgrandsongranddaughterinstructionblueprintcomplextwinpatternidentifyrelated 一般的 普遍的重复 复述 背诵孙子 外孙孙女 外孙女指示 说明蓝图复杂的双胞胎之一模式 形式确认 鉴别有关的 相关的 2 Showtime Leadersread Learnersspell 一般的 普遍的重复 复述 背诵指示 说明孙子 外孙孙女 外孙女 general instruction granddaughter grandson repeat 3 Leadin Dotheylookalike Why Yes theylookalike Becausetheyaremotheranddaughter fatherandson Thechildern sDNAcomesfromtheirparents WhatisDNA 互助探究Learninginpairs 1DNAistheblueprintoflife 2Buildingahouseisfarmorecomplexthanbuildingalivingthing 1 ListenandwriteT F Ifit sfalse correctit 1DNAistheblueprintoflife 2Buildingahouseisfarmorecomplexthanbuildingalivingthing Buildingalivingthingisfarmorecomplexthanbuildingahouse 1 ListenandwriteT F Ifit sfalse correctit Readafterthetape Readinpairs 2 Reading 3 Languagepoints Discussandunderlinelanguagepointsinpairs 1 Ingeneral ablueprintisadrawingthatshowshowtoputahousetogetherwithmanydifferentparts 一般而言 蓝图就是一副图纸 它显示一座房子的构造 ingeneral 一般而言 概括说来 通常置于句首 也可以用generallyspeaking表示 e g 一般而言 女生比男生容易哭 Ingeneral Generallyspeaking girlscrymoreeasilythanboys 2 Exceptforsometwins everylivingthinghasitsownuniqueDNA 除了同卵双胞胎之外 每个生物都有自己独特的DNA exceptfor 除 之外 要不是由于 它要求排除的是不同类的 except 除 之外 一般不用于句首 它要求排除的是同类的 besides 除 之外 尚有 包括besides之后的内容 而且是同类的 Weallwenttothezoo LiMing 除了李明以外 我们都去了动物园 HealsoknowsJapanese English 除了懂英语之外 他也懂日语 Thecityisgood theweather 除天气外 这座城市还不错 except exceptfor besides 3 FromyourDNA scientistscanidentifynotonlyyou butalsopeoplewhoarerelatedtoyou 从你的DNA中 科学家们不但能够辨认出你 而且能够辨认出和你有血缘关系的人 berelatedto 与 有关 使互相关联 e g 他与我的家庭有关系 Heisrelatedtomyfamily 4 YourDNAhasbillionsofinstructionsthatexplainwhyyouarethewayyouare 你的DNA有数十亿条指令说明你为什么是这样的 billionsof 数以亿计的 大量的 e g 数以亿计的星星在天空上 Billionsofstarsareinthesky III 分层提高Exercise 1 Fillintheblankswiththephrasesinthebox ingeneralexceptfornotonly butalsorelatedtoevenifthesame as Yourhomeworkisquitegood afewspellingmistakes 2 theyoung theoldlikepopmusic 3 Kate shairis colour hersister s 4 womenlivelongerthanmen 5 manydifficultiesremain wecanovercomethem 6 Iswealth 财富 happiness exceptfor Notonly butalso thesame as Ingeneral Evenif relatedto IV 归纳总结Summary SummarizeinpairsLearnerssummarizefirst thenleaderssummarize Whathaveyoulearnedinthisclass Ihavelearned NewWords generalrepeatgrandsongranddaughterinstructionblueprintcomplextwinpatternidentifyrelatedPhrases ingeneralexceptfor except besidesberelatedtobillionsof Summary V 巩固提升Improvement 1Completethepassagewithsentencesinthebox ChangingDNA DoyouknowDNAcanbechanged Haveyoueverseenapigwithadog sbody Ofcoursenot Pigsanddogscan thavebabiestogether Butnow scientistscandoit ScientistscantakeDNAfromonekindofanimalandputitintoanotherkindofanimal TheycandesignnewplantsbycombiningtheDNAofotherplants Somescientistsareworried TheysayweneedtoknowmoreaboutDNAbeforewestartchangingit Butwhatiftheplantsarebadforhumans too TheirDNAcan tcombine Wecanmakeplantsthatarebadforpests 害虫 TheycanevencombinetheDNAofaplantandananimal A C B 1 CanscientiststakeDNAfromonekindofanimalandputitintoanotherkindofanimal 2 Whatcanscientistsdowith DNA 3 Canwemakeplantthatarebadforpestswith DNA 2 Readthewholepassageandanswerthequestions Yes theycan 1 CanscientiststakeDNAfromonekindofanimalandputitintoanotherkindofanimal TheycandesignnewplantsbycombiningtheDNAofotherplants TheycanevencombinetheDNAofaplantandananimal 2 Whatcanscientistsdowith DNA 3 Canwemakeplantsthatarebadforpestswith DNA Yes wecan IsitagoodideatochangetheDNAofthefoodweeat Somepeoplesaydoingthismakesourfoodbetter Oth