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Unit3TheworldofscienceUsinglanguagePresentperfectpassive
(have/hasbeen+过去分词)Suchbookshavebeenwrittenforchildren.Alltheseproductshavebeentested.Theletterhasbeenopened.Theyhavebeentoldmanytimesnottomakenoises.1.不知道或没必要说动作的执行者是谁2.强调动作的承受者3.动作执行者模糊4.有时为了礼貌的需要,避免说出动作的执行者Rewritetheunderlinedpartsusingthepresentperfectpassive.Withinthenext80years,ourlivesmaybechangedbeyondrecognitionby3Dprinting.(1)Ithasalreadyaffectedmanythingsinourlives,
rightdowntothefoodweeat.Forinstance,(2)somerestaurantsinLondonhaveserved3D-printedhamburgerstocustomers.(3)Butperhapsthemostsignificantsuccessthatpeople
haveachievedtodateisinmedicine.(4)Theyhavemade
humanbodyparts,includingabeatingheart,with3D
printingtechnology.Anditisnotjusthumanswhoarebenefiting–inBrazil,(5)peoplehavegivenanew
3D-printedshelltoaturtleinjuredinaforestfire!Manythingsinourliveshavealreadybeenaffected3D-printedhamburgershavebeenservedtocustomersinsomerestaurantsinLondonButperhapsthemostsignificantsuccessthathasbeenachievedtodateisinmedicineHumanbodyparts,includingabeatingheart,havebeenmadewith3Dprintingtechnology.Anew3D-printedshellhasbeengiventoaturtleinjuredinaforestfire!Vocabulary:CareerinscienceListthewordsandexpressionscanbeusedtodescribethesecareers.GuoShoujing(1231–1316)wasafamousChinese_________oftheYuanDynasty.Heinventedtwelvenewinstruments(仪器)tostudystarsandplanets.HealsodevelopedacalendarwhichisasaccurateastheGregoriancalendar.AmountainontheMoonandaminorplanetarenamedafterhim.
astronomerBritish________CharlesDarwin(1809–1882)isbestknownforhisworkOntheOriginofSpecies,inwhichheexplainschangesinspeciesduetonaturalselection.Hisideasdeeplyinfluencedourunderstandingoftherelationshipbetweenhumansandnature.biologistLiDaoyuan(ca466–527)wasafamouswriterand___________oftheNorthernWeiDynasty.HedidfieldresearchacrossChinaandstudiedmorethanathousandriversandstreams,alongwiththelandscape,historyandcultureofthesurroundingareas.geographerMarieCurie(1867–1934)wasaworld-famous_________,andwasfirstawardedtheNobelPrizein1903forherextraordinaryworkonradioactivity.Shewasalsoregardedasabrilliant_________,andwasagainawardedtheNobelPrizein1911fortheisolationofpureradium.chemistphysicistChenJingrun(1933–1996)wasoneoftheworld’sleading______________.HisworkonChen’sTheorem(陈氏定理)madeanimportantadvancetowardsprovingGoldbach’sConjecture(哥德巴赫猜想),thegreatestunsolvedprobleminnumbertheory(数论).mathematiciansListening:InventionstoriesAlzheimer’sdiseaseWhatisAlzheimer’sdisease?WhoaremorelikelytobecomesufferersofAlzheimer’s?Whatarescientiststryingtodoforpeoplewiththedisease?Activity7
Listentotheconversationandnumberthepicturesinthecorrectorder.abcde43512getlostkeepaneyeonhimdrawhisideascreateadevicesendawarningtotheboy’smobilephoneListenagainandcompletethenotesWhatisit?Whowasitinventedby?Whoinspiredtheinvention?Howdoesitwork?It’sapairofsocksdesignedforpeoplewithAlzheimer’sdisease.ItwasinventedbyastudentfromNewYorkcalledKenneth.Hisgrandfather,whohasAlzheimer’sAwarningissenttoamobilephonelikeanalarmwhenthepersonwithitgetsoutofbed.Answerstothetapescript1.aproductdesignedfor2.wonanaward3.Oncehegotlostinthecityandittookawholedaytofindhim!4.worryingabouthimleaving5.keepaneyeon6.puttingadeviceinto7.sensedanincreaseofpressure8.Whatausefulinventionand(a)c
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