Module 4 Great Scientists Period 3 Function Grammar 12教学设计Word文档格式.docx
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Module 4 Great Scientists Period 3 Function Grammar 12教学设计Word文档格式.docx
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TeachingProcedures
Step1Revision
(Greetingsasusual)
T:
First,let’shaveadictationofthenewwordsandexpressionswelearntlastclass.
1.staple 2.leading 3.figure 4.breeding 5.species 6.yield 7.original8.sterile 9.breakthrough 10.convert 11.export 12.hybrid 13.replace14.bringup 15.asaresultof
Step2Function
Functioninthismoduleisaboutnumbers.Now,lookatActivity1onPage35.
Choosethecorrectwayofsayingthenumbers.
1.5000000
(a)fivemillion____________________(b)fivemillions
2.47.5%
(a)fortysevenhalfpercent(b)fortysevenpointfivepercent
3.632
(a)sixhundredandthirtytwo(b)sixhundredthirtytwo
4.4/5
(a)fourfifths____________________ (b)fourfive
Askthestudentstocompletethemindividuallyandthencollecttheanswersinthewholeclass.Afterthat,givethestudentsseveralminutestoreadthemaloud.
Suggestedanswers:
1.a 2.b 3.a 4.a
Nowlet’scometoActivity2.Readthesentencesaloudandattentively.
1.Ricewasfirstgrownabout5000yearsago.
2.Chinaexportsabout1.5%ofitsrice.
3.Australiaproducesabout250000tonsofrice.
4.2/3theworld’spopulationregularlyeatrice.
OK,class.Nowareyousureyoucansaythenumberscorrectly?
Dictatesomenumberstoyourpartner,includingbignumbers,fractionsandpercentages.ThenIwillgiveyouaquiz.(Afterthestudentspracticewitheachother,theteachergivesthemthefollowingquiz.Readthemathematicaltermscorrectly.)
(Showthenumbersonthescreenorontheblackboard.)
1.1035 2.3/7 3.46% 4.2840000 5.$95.5
Asktheindividualtoreadthem,onenumberastudent.Afterthestudentscompletethem,letthemreadnumberstogether.
1.onethousandandthirtyfive 2.threesevens 3.fortysixpercent
4.twomillioneighthundredandfortythousand 5.ninetyfivepointfivepercent
Step3Grammar1:
ThePassiveVoice
Nowlet’scometorevisionofthepassivevoice.
FirstpleasestudythesentencesinActivity1onPage33.
(Showthefollowingsentencesonthescreen.)
a.RiceisgrowninmanyotherAsiancountries.
b.ResearcherswerebroughtinfromalloverChina.
c.Theresearchwassupportedbythegovernment.
d.InPakistanricewillbegrowninmanypartsofthecountry.
e.ThenewhybridricehasbeendevelopedbytheYuanLongpingHigh-techAgricultureCompanyofChina.
Nowanswerthefollowingquestions.(Showthemonthescreen.)
1.Whichsentenceisinthepresentsimple(passivevoice)?
2.Whichsentencesareinthepastsimple(passivevoice)?
3.Whichsentencereferstothefuture?
4.Whichsentenceisinthepresentperfect?
5.Whichsentencesareeasytotransformintotheactivevoice?
Why?
Askthestudentstocompletetheminpairs,thencallbacktheiranswersfromthewholeclass,havingonestudentaskthequestionandanotherreadtheexamplesentence.
1.a 2.bandc 3.d 4.e 5.cande,becauseyoucaneasilyfindthesubjectoftheactivevoiceafter“by”.
Fromthesentencesabove,wecanknowthestructureofthepassivevoice:
be+done.Tensesareobservedthroughthe“be”verb.Sothestructureofthepassivevoiceinthepresent,thepast,thefuture,andthepresentperfectformsareasfollows:
am/is/are+p.p.(thepresentsimple);
was/were+p.p.(thepastsimple);
willbe+p.p.(thefuturesimple);
andhave/hasbeen+p.p.(thepresentperfectform).NowpleasemakethesentencesinActivity2usingthecorrecttenseofthepassivevoice.
Example:
Theseshoes/make/inItaly
TheseshoesaremadeinItaly.
1.Thesecomputers/produce/inAmerica
2.Rice/grow/inChina/for/thousandsofyears
3.Theseelectronicgames/make/inJapan
4.Anewvarietyofrice/discover/in1970
5.Manyimportantdiscoveries/make/since/thebeginningoflastcentury
Askthestudentstocompletetheiranswersindividually,thencheckwithapartner.Asksomeofthemtoreporttheiranswers.
1.ThesecomputersareproducedinAmerica.
2.RicehasbeengrowninChinaforthousandsofyears.
3.TheseelectronicgamesaremadeinJapan.(couldalsobe“weremade”)
4.Anewvarietyofricewasdiscoveredin1970.
5.Manyimportantdiscoverieshavebeenmadesincethebeginningoflastcentury.
Afterthestudentsfinishsentences,askthewholeclasstoanswertheadditionalactivity:
whatformofthepassivevoicearethesentences?
1.presentsimple 2.presentperfect 3.presentsimple(pastsimple) 4.pastsimple 5.presentperfect
Nowclass,Ithinkyouhavemasteredtheuseofthepassivevoice.Let’sdoanothertwoactivitiestoconsolidatewhatwe’velearned.First,completethesentencesusingtheverbsinbracketsinActivity3.Askthestudentstofillintheblanksindividually,thentheteacherletsomevolunteersspeakouttheiranswers.Duringclass,theteachershouldencouragethestudentstobeactiveinclass,andgivethestudentsmorechances.(Showthefollowingsentencesonthescreen.)
1.Asaboyhe__________(educate)inmanyschools.
2.He__________(give)thenickname,”thestudentwhoasksquestions”.
3.Theresultsofhisexperiments__________(publish)inChinain1966.
4.Finally,in1970anaturallysterilemakericeplant__________(discover).
5.50thousandsquarekilometersofricefields__________(convert)togrowingvegetables.
6.Followingthis,YuanLongping’srice__________(export)toothercountries.
1.waseducated 2.wasgiven 3.werepublished
4.wasdiscovered 5.wereconverted 6.wasexported
Justnow,you’vegotthewholesentencescorrectly.Nowlet’sdoafurtherjob.WritequestionsbasedontheinformationinActivity3.Thefirstwordinthesentenceisgiven.We’llhaveapairworkthistime.Discussthesentencewithyourpartner,thengivesusthequestions.Onegivesusthequestion,whilehisorherpartnergivesustheanswer.
(Showthefollowingonthescreen.)
1.Where?
2.What?
3.When?
4.When?
5.Howmany?
6.Where?
Step4Grammar2
Hereisasentenceforyoutodecidewhichquestiontheunderlinedphraseanswers.
(Showthesentenceonthescreen.)
Hethoughthecouldproducemorericebycrossingdifferentspeciesofplant.
1.Whatcouldheproduce?
2.Whyshouldheproducemorerice?
3.Howcouldheproducemorerice?
OK,class.Whichoneisthecorrectanswers?
Students:
No.3.
That’sright.Thisquestioniseasytounderstand.Fromthequestion,weknowgrammarinthispartisby+-ingform.Itusuallyworksasadverbial,andmeans“usingsomeway”.Thisformisnotdifficult.WearesurethatafterthepracticeinActivity2,youcanmasterthisformcorrectly.Now,let’scometoActivity2.Rewritethesentencesbychangingtheunderlinedphraseswithaphrasebeginningwithby+-ing.
(Readtheexampleandhavethestudentsfollow.Makesuretheyunderstandtheform.Thenaskthestudentstocompletetheactivityindividually,andcallbacktheanswersfromthewholeclassascompletesentences,havingonestudentreadtheoriginalandanotherthealteredversion.)
(Showthefollowingsentencesonthescreen.)
Youcangetagoodjobifyoustudyhard.
Youcangetagoodjobbystudyinghard.
1.YuanLongpingchangedagriculturalinChina.Hediscoveredanewtypeofrice.
2.Researcherslearnthingswhentheycarryoutexperiments.
3.Theychangedthedesignandsotheybuiltabetterengine.
4.Youwillbecomeabetterpianistifyoupracticeoften.
5.Ifyouplanforthefuturewecanbehappyinthepresent.
1.YuanLongpingchangedagricultureinChinabydiscoveringanewtypeofrice.
2.Researcherslearnthingsbycarryingoutexperiments.
3.Bychangingthedesigntheybuiltabetterengine.
4.Youwillbecomeabetterpianistbypracticingoften.
5.Byplanningforthefuturewecanbehappyinthepresent.
Step5Summaryandhomework
Throughthisclasswehavelearnedthecorrectwayofsayingnumbers.Inthepartofgrammar,welearnedthepassivevoiceinthepresentsimple,thepastsimple,thefuturesimpleandthepresentperfecttense,westudiedtheusageofby+-ingformaswell.Homeworktodayistofindmoreexamplestopracticeafterclass.Somuchfortoday.Good-bye,everyone!
Good-bye,teacher!
TheDesig
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