精品K12Book 5Unit 1Great Scientists预习学习型教学案.docx

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精品K12Book5Unit1GreatScientists预习学习型教学案

Book5Unit1GreatScientists预习学案

  Book5

  Unit1

  GreatScientists预习学案

  一.目标聚焦

  、了解著名医生约翰•斯诺、钱学森、哥白尼等科学家。

  2、学会使用表示描述人物的句型

  3.学习过去分词作定语和表语的结构

  二.走进课文

  .Readthepassageandnumbertheseeventsintheorderthattheyhappened.

  ---johnSnowbegantotesttwotheories.

  ---AnoutbreakofcholerahitLondonin1854.

  ---johnSnowmarkedthedeathsonamap.

  ---Heannouncedthatthewatercarriedthedisease.

  ---johnSnowinvestigatedtwostreetswheretheoutbreakwasverysevere.

  ---kingcholerawasdefeated.

  ---Hefoundthatmostofthedeathswerenearawaterpump.

  ---Hehadthehandleremovedfromthewaterpump.

  2.Readthepassageandanswerthesequestions.

  johnSnowbelievedIdea2wasright.Howdidhefinallyproveit?

  ____________________________________________________________________________

  DoyouthinkjohnSnowwouldhavesolvedthisproblemwithoutmap?

giveareason.

  ____________________________________________________________________________

  cholerawasa19thcenturydisease.whatdiseasedoyouthinkissimilartocholeratoday?

why?

  ____________________________________________________________________________

  三.句式点击

  .

  withthisextraevidencejohnSnowwasabletoannouncewithcertaintythatpollutedwatercarriedthevirus.

  withthisextraevidence

  有了这个额外的证据;withcertainty肯定地,有把握地

  在句中作状语,相当于副词.

  that引导宾语从句

  polluted过去分词作定语

  2.Somanythousandsofterrifiedpeoplediedeverytimetherewasanoutbreak.

  terrified过去分词作定语

  everytime短语充当连词作用,还有themoment/minute/second;thefirst/second…lasttime;immediately/instantly/directly

  eg:

ThefirsttimeIwentabroadIcouldhardlyunderstandwhattheforeignerssaid.

  ThemomentIsawhim,Iknewwhathadhappened.

  3.Itseemedthatthewaterwastoblame.

  be﹢动词不定式,可以表示该做或不该做的事

  betoblame应该负责;应受责备

  eg:

Nooneistoleavethisbuildingwithoutthepermissionofthepolice.

  youarenottodroplitterinthispark.公园里不许乱丢垃圾。

  whoistoblameforthefire?

  whoistoberesponsibleforthis?

  4.onlyifyouputthesuntheredidthemovementsoftheotherplanetsintheskymakesense.

  only﹢加状语放于句首时,主句用部分倒装。

  eg:

onlyaweeklaterdidIreceiveananswerfromher.

  onlywhenyouarefortyandlookingbackwillyourealizethatyouhaven’tdoneyourbest.

  拓展:

onlyif可译为“只有”

  eg:

onlyifyoustudyhard,willyoupassthetest.

  makeacallonlyifitisimportant.

  5.Thefirstsuggestedthatcholeramultipliedintheair.

  Topreventthisfromhappeningagain,johnSnowsuggestedthatthesourceofallthewatersuppliesbeexamined.

  suggest当暗示,表明时,从句用陈述语气。

  当建议讲时,从句用虚拟语气﹢do

  eg:

Isuggestedthathegiveupsmoking.

  四.语法分析:

过去分词作定语和表语

  课文原句:

  .

  HefoundthatitcamefromtheriverpollutedbythedirtywaterfromLondon.

  2.

  Buthebecameinspiredwhenhethoughtabouthelpingordinarypeopleexposedtocholera.

  过去分词作定语:

  意义:

过去分词含有被动和完成的意思,不及物动词的过去分词只表示完成

  abrokenheart

  aploughedfield

  arisensun已升起的太阳

  位置:

单个的过去分词作定语时,通常放在所修饰词前;过去分词短语作定语时,通常放在后面。

  pollutedwater

  deathcausedbytheaccident

  abrokenglass

  aglassbrokenbytheboy

  特别提示:

  有些词像left剩下的,given(所给的),concerned(有关的)等,习惯上作后置定语,如

  standingroomleft

  thepeopleconcerned

  有关人士

  thebookgiven

  所给的书籍

  当所修饰的词是由some/any/nothing/nobody…所构成的不定代词或指示代词those等时,通常放在其后。

如:

  TherehasbeennothingchangedsinceIleftHarbintwoyearsago.

  区别:

过去分词作定语和现在分词作定语

  .

  语态不同:

现在分词表示主动,过去分词表被动.如

  surprisingnews

  surprisedlisteners

  anexcitingmovie

  excitedchildren

  Theteachertoldhisstudentsalotofinterestingstories.

  Sheisinterestedinchinese.

  2.

  时间关系上不同:

现在分词表动作正在进行;过去分词表动作已经完成。

  thechangingworld正在发生变化的世界

  thechangedworld

  已经改变了的世界

  boilingwater

  boiledwater

  developingcountries

  developedcountries

  过去分词作表语:

  意义:

用在系动词后面,构成系表结构,表示主语所处的状态。

  如shelookeddisappointed.

  wewereencouragedatthenews.

  用于被动语态,表示主语所承受的动作。

  thebookiswellwritten.

  thelakeisbadlypolluted.

  五.单词、短语突破

  .characteristicn.﹠adj.

  n.特征;特性

  whatcharacteristicsdistinguishtheAmericansandcanadians?

  特有的,典型的

  withthecharacteristicgenerosity,heofferedtobuyticketsforallofus.

  2.conclude

  vt.﹠vi结束;推论出;议定,决定

  常用于以下结构:

  concludewithsth.用……结束某事

  concludesth.fromsth.从……推断出

  concludetodosth.决定做某事

  concludethat-clause决定

  拓展:

conclusion

  drawaconclusion得出结论

  makeaconclusion得出结论

  bring…toaconclusion

  使结束;谈定买卖等

  cometotheconclusionthat…所得到的结论

  arriveat/cometo/reachaconclusion得出结论,告一段落

  inconclusion=toconclude最后,总之

  3.

  attendvt.照顾,护理;出席;参加

  Ihavetoattendmysickson.

  willyouattendthemeetingtomorrow?

  4.

  exposevt.显露;暴露;揭露

  Sheexposedasetofperfectwhiteteethwhenshesmiled.

  Thesoilwaswashedawaybytheflood,exposingthebarerock.

  expose…to…

  Heexposedhisskintothesun.

  5.

  cure

  n.﹠vt.

  治愈;痊愈n.

  thereisstillnocureforthecommoncold.

  治疗;治愈vt.

  canyoucuremeofmycold?

  whenIlefthospitalIwascompletelycured.

  6.

  absorbvt.吸引;吸收;使专心

  Blackclothingabsorbslight.

  Thetaskabsorbedallhisenergies.

  beabsorbedin=absorboneselfin全神贯注于

  Theoldmanwasutterlyabsorbedinthebook.

  7.

  instructvt.命令,指示,教导

  themanagerinstructedusaboutourdutiesonthefirstday.

  hedoesn’tinstructuswheretogo.

  派生词:

instruction

  n.指导;指令

  instructions

  n.说明,操作指南

  8.

  link…to…将……和……连接或联系起来(常用被动语态表示状态)

  Theislandislinkedtothemainlandbyanewbridge.

  Heartdiseasecanbelinkedtosmoking.

  拓展join…to把……和……连接起来

  connect…with将……和……连接

  

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