英语必修ⅰ外研版module5alessoninalab教案5.docx

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1、Period1ReadingandspeakingTeachingprocedures:Partone:Vocabulary&ReadingStep1:Lead-inAtfirstshowthestudentsthepictureofalabwiththehelpofcomputerThendesignthefollowingquestionsandaskthestudentstodiscussthemingroups:1.Areyouinterestedindoingscientificexperiment

2、s?2.Supposeyouwanttodoachemicalexperimentaboutsomemetals,doyouthinkitisnecessarytoknowabouthowtheyreactwithothersubstances?3.Inordertocarryoutanexperimentsuccessfully,whatshouldyouprepareforit?ThisstepistowarmupthestudentsandraisetheirintereststospeakEnglis

3、hinclass.Becauseallthesequestionsareveryclosetothestudents’dailylifeandstudyingStep2：Pre-readingTeacher:Sinceyouareinterestedindoingscientificexperiments,nowlet’sgettoknowsomevocabularyandknowledgerelatedtoscienceandexperiments.AtthesametimeIcantypeoutsomep

4、icturesaboutsomemetalsonthescreenwiththehelpofthecomputerasfollows:⑴potassium(钾)⑵sodium(钠)⑶calcium(钙)⑷magnesium(镁)⑸aluminum(铝)⑹zinc(锌)⑺iron(铁)⑻copper(铜)AsItypeouteachoftheabovepictures,Icanaskthestudentslikethis:What’sthis?Andwhatcanitbeusedfor?Atthismoment

5、thestudents’interestsareprobablyapproachingaclimax.SoIfurtheraskthemlikethis:Doyouwanttoknowmoreaboutthesemetals?Anddoyouknowhowwecanusethesemetalsbetter?Well,thisiswhatwe’llstudyverysoon.Thisstepisemployedtocreatealanguageenvironmentforstudents’communicati

6、onandarousetheirinterestsinreadingpassageAandpassageBonpage44-45Step3:ReadingPassageAT:Well,let’sreadthroughpassageAwiththetapeofitveryquicklytotrytocatchitsmainidea.ThenfinishActivity2onpage44andgiveyourreasons.Next,asktheSstoreadpassageAverycarefullytofin

7、douttheanswersinActivity3onpage44.Finishthisactivitybymulti-mediacomputer.Itcanbedesignedasfollows:1.Whichofthemetalsinthetablereactsthemostwithoxygenandwater?2.Whathappenswhenyouheatcalciuminoxygen?Itburnstoformanoxide.3.Whichmetalsreactwithsteam?4.Doesiro

8、nhaveasloworfastreactionwithsteam?Ithasaslowreaction.5.Doescopperreactwithwater?T:Well,frompassageAwecanseehowinterestingtheexperimentaboutthereactionofmetalsis!Butdoyouknowhowwecancarryoutachemicalexp