選必二Unit1ScienceandscientistsOpeningPage&ReadingandThinking重慶市黔江中學(xué)校彼得大帝Step1.

OpeningPage

1.Whatisthethemeofthisunit?Thethemeofthisunitisgreatscientificmindsandthepowerfulwaysinwhichtheyinterprettheworld,analyzeproblems,andaffectrealchangeinourworld.2.Howwouldyoudescribethephoto?Twoyounggirlstudentsareconductinganexperimentinaschoolsciencelaboratory,probablytotestatheory,verify(驗證)results,collectdata,ordevelopskillsneededinscientificresearch.3.Whatscientificequipmentcanyouseeinasciencelaboratory?Safetygoggles(防護眼鏡),glassrod（玻璃棒）,beaker（燒杯）,gauzemat（石棉網(wǎng)）,tripod（？）,Bunsenburner（本生燈）,stand（托架）,flask（燒瓶）,testtube（試管）,testtuberack試管架,etc.4.Why

do

we

need

to

conduct

experiments?Experimentsareanessentialpartofthescientificprocess.Theyallowscientiststotesttheirhypotheses（假說、假設(shè)）,gatherdata,anddrawconclusionsaboutthenaturalworld.Withoutexperiments,ourunderstandingoftheworldwouldbelimited,andwewouldnotbeabletomakeprogressinfieldssuchasmedicine,technology,andenvironmentalscience.Studentsengagedinthiskindoflaboratorylearningcangainfirst-handknowledgeofscientificelements,rulesofnaturalphenomena,andtheexponentialpower（指數(shù)級的力量）ofcollaboration（協(xié)作、合作）.5.Howdoweunderstandthequote?Toraisenewquestions,newpossibilities,toregardoldproblemsfromanewangle,requirescreativeimaginationandmarksrealadvanceinscience.AlbertEinstein&LeopoldInfeld提出新的問題，發(fā)現(xiàn)新的可能，從新的角度審視已存在的問題，這些需要創(chuàng)造性的想象力，并標(biāo)志著科學(xué)的真正進步。Itmeansthattherealmarkofascientististheabilitytoaskquestionsandtoseethingsinanewway,andthisrequirescreativity.6.Haveyoueverbeentoaplacelikethis?Whatwasitlike?Yes,Ihave.Ihaveconductedchemistryexperimentsinthelaboratoryatmyschool.Therearelotsofbeakers,Petridishes(培養(yǎng)皿),andothertoolsandequipmentthere.Wearesetinteamsandworktogethertocompleteexperimentsatvariousworkstations.7.Wouldyouliketoworkinsuchafieldinthefuture?Whyorwhynot?Iwouldliketoworkinsciencebecausesuchworkcanhelpmebetterunderstandtheworld,appreciatetheworldatdifferentlevels,andmakeadifferenceinpeople’slives.Iwouldalsobeabletodevelopnewtechnologies,findcures,solvepracticalproblems,makeinformeddecisions,andworkonthingsthatinterestme.Iwouldn’tliketoworkinsciencebecauseI’moutgoingandIcan’tstandstayinginthelaboratorydayandnight.Step2.ReadingActivity1.Discussthefollowingstageofscientificresearchingroups.Whatorderwouldyouputthemin?

_____analyzetheresults

______askaquestion______drawaconclusion______collectdata______findaproblem______findsupportingevidence______thinkofamethodActivity2.SkimthepassagetoseeiftheorderyoudecideinActivity1wascorrect._____analyzetheresults

______askaquestion_____drawaconclusion______collectdata_____findaproblem______findsupportingevidence_____thinkofamethod5274163A:Itwasbelievedthatcholerawascausedbybad____orgermsin_______________.B:Snow___________________theplaces

wherethepeoplewho_____hadlivedC:Manydeathsoccurrednearthe___________inBroadStreet.Somepeople__________drunkthewaterfromthepump,andlived.AwomanandherdaughterdiedinanotherpartofLondonafter________________________.D:Thepumpwatercarried____________.E:The_______ofthepumpwasremoved.handleairfoodorwatermarkedonthediedwaterpumphadn’tdrinkingwatercholeragermsmapfromthepumpActivity3:ReadfromPara.2-3againandcompletethechartbelow.Activity4.Matchthefollowingheaderswiththelettersfromthechartabove.WriteA-Eintheblanks.1.conclusion_______2.evidence_______3.process_______4.solution_______5.theories_______DCBEA5.Writeoutthequestionsaccordingtotheanswers.1.Q:What__________________________________________?A:Snowthoughtthatcholerawascausedbygermsinfoodorwater.2.Q:Why__________________________________________?A:Snowhadthehandleofthepumpremovedsothatitcouldnotbeused.3.Q:How___