高一英语下册 unit19 modern agriculture(第五课时)教案 大纲人教版第一册

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1、TheFifthPeriodTheuseofitTeachingAims:1.Reviewthedifferentusagesof“it”.2.Getthestudentstoremembersomeusefulsentencepatterns.3.Getthestudentstodomoreexercisessothattheycanmasterthegrammaritem.TeachingImportantPoints:Masterthedifferentusesof“it”,esp,theemphaticuseandth

2、euseasapreparatorysubjectorapreparatoryobject.TeachingDifficultPoint:Howtomasteranduse“it”correctly.TeachingMethods:1.Reviewmethodtorevisethecommonuseof“it”.2.Inductivemethodtogothroughsomesentencepatternswith“it”.3.Practicetoconsolidatetheuseof“it”.TeachingAids:1.a

3、projectorandsomeslides2.acomputerformultimediauseTeachingProcedures:stepⅠ.GreetingsandRevision(Teachergreetsthewholeclassasusualandshowsthescreen.)T:Sofarwe'velearnedseveralusesof“it”.Nowpleaselookatthescreen.Discussthesentenceswithyourpartnerandtellwhattheword“it”i

4、neachsentencereferstoanditsfunction.WriteyouranswersonapieceofpaperandlaterI'llasksomestudentstosaytheanswers.Discussthefollowingsentencesandtellthefunctionof“it”.1.It'sdifficulttorememberalltheirnames.2.It'sveryquietinthecafe.3.Itrainedforthreedays.4.Hemadeitcleart

5、hathedidn'twanttospeaktome.5.Itwasniceseeingyou.6.ItwasonTuesdaythatMrs.Smithcame.7.It'sthreemilesfromheretothenearestgarage.8.Atallmanstoodupandshookhands.ItwascaptainLawrie.9.Ihearyouboughtanewbike.Canyoushowittome?10.Itwasfiveo'clockwhenwegotbackhomeyesterday.11.

6、Itwasdirtyandwetbelowtheshipwheretheslaveswerekept.12.Itwasonthiscoastthatlotsofhispeopledisappeared.13.Itwasmostlikelythatonethirdofthemhadlosttheirlives.(Afterafewminutes.)T:Areyouready?Ss:Yes.T:Whowillgiveustheanswers?Onestudent,onesentence.Volunteers?SA:“It”isus

7、edasaformalsubjectinthefirstsentence.Itsrealsubjectistheinfinitive“torememberalltheirnames.”SB：2.“It”referstopresentsituation.SC:3.“It”refersto“weather”.SD:4.“It”isusedasaformalobject.SE:5.“It”isusedasaformalsubject.SF:6.Thissentenceisanemphaticstructure,emphasizing

8、theadverbialoftime.SG:7.“It”isusedhereasanimpersonalpronoun,referringtodistance.SH:8.“It”hereisusedtopointoutdefinitelyaperson.SI:9.“It”he