仁爱版九年级英语上册U4T1SA优质教案.docx
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仁爱版九年级英语上册U4T1SA优质教案
Unit4AmazingScience
Topic1Whenwasitinvented?
SectionA
Ⅰ.Materialanalysis
本课是九年级第四单元第一话题的第一课时。
主活动是1a和2。
1a通过Kangkang和Jane谈论火箭模型，引入本课的语法：
一般过去时的被动语态。
1b是检查学生听1a的效果，1c则是检查学生阅读理解的能力。
2重点操练bemadeof，bemadefrom和beusedfor。
3a以听的形式让学生加深对2a的句型和1a的语法的理解。
3b让学生能够把本课的句型和语法正确地说出来。
总之，本课把句型和语法充分地融合到听、读、说当中。
Ⅱ.Teachingaims
1.Knowledgeaims：
掌握本课的重点词汇和短语，初步学习一般过去时的被动语态。
2.Skillaims:
能够在听、说、读、写中正确运用一般过去时的被动语态。
3.Emotionalaims:
（optional）
鼓励学生要勤思考、有理想、争做未来的发明家。
4.Cultureawareness:
（optional）
了解其他国家的科技发明。
Ⅲ.Thekeypointsanddifficultpoints
1.Keypoints:
Wordsandphrases:
lock,metal,bemadeof,bemadefrom,bemadein,beusedfor,beallowedtodosth.
Sentences:
What’sitmadeof?
It’smadefromwood.
What’situsedfor?
It’susedforlockingthedoor.
IwishIcouldgointospacesomeday.
Ihopeyourdreamwillcometrue.
Grammar:
was/were+pp
2.Difficultpoints：
bemadeof和bemadefrom的用法辨析。
IwishIcouldgointospacesomeday.
It’susedforwritingon.
Ⅳ.Learningstrategies
通过温习一般现在时的被动语态知一般过去时的被动语态，实现从一般现在时的被动语态到一般过去时的被动语态的转换。
通过联系生活实践，来区分bemadeof和bemadefrom。
在交流中，重在表意，不要担心出错。
Ⅴ.Teachingaids
有关新词的图片/实物（如：
数码相机,锁）/录音机/小黑板/PPT。
Ⅵ.Teachingprocedures
Stage
（timeperiod）
Interaction
patterns
Teacheractivity
Studentactivity
Remarks
1
Revision&lead-in
（10mins）
Classactivity
Groupwork
Groupwork
Step1:
LettheSschangethesentencesinGroupAintopresentpassivevoice.
T:
Lookatthesesentencesandtrytochangethemintopassivevoice.
T:
xxx,doyouwanttotrythefirstone?
T:
Wonderful!
Thesecondone?
Example:
GroupA
PeoplespeakEnglisharoundtheworld.
Themonkeyseatthebananas.
Waterwashesawaytheearth.
Thechemicalfactorypollutestheriver.
...
Step2:
PresentthesentencesinGroupBandencouragetheSstodiscussingroupsandchangethemintopassivevoice,too.
T:
Youhavedoneverywell.Nowlookatthisgroupofsentences.Again,youchangethemintopassivevoice,butthistime,youwilldiscussingroupsfirst.
T：
Anyvolunteers?
T:
Whichgrouphasdifferentopinions?
T:
That’snice.HowaboutSentenceTwo?
T:
Perfect!
Example:
GroupB
AP.EteacherintheUSAinventedbasketballinthenineteenthcentury.
Theworkercutdownthetreesyesterday.
Imadethismodelplane.
Mr.Wangpunishedhim.
Thecatatethefish.
...
Step3:
LettheSsobservethetwogroupsofsentencesandtrytofindthedifferencesbetweenthem.Movetopastpassivevoice.
T:
Observethetwogroupsofsentencesinyourgroupandfindoutthedifferencesbetweenthem.
T:
Hi,class,haveyoufoundanythingdifferent?
T:
Yourgroupiswonderfultoday.Anythingelse?
T:
Great!
CanyouguesswhatwecallthesentencesinGroupB?
T:
Yes.Youmadeit.Couldyoutellmethestructureofit?
Changethepresentactivevoiceintopassivevoice.
S1:
Englishisspokenbypeoplearoundtheworld.
S2:
Thebananasareeatenbythemonkey.
S3:
..
Changethepastactivevoiceintopassivevoice.
S1:
BasketballisinventedbyaP.EteacherintheUSAinthenineteenthcentury.
S2:
BasketballwasinventedbyaP.EteacherintheUSAinthenineteenthcentury.
S3:
Thetreeswerecutdownbytheworkersyesterday.
S4:
Thismodelplanewasmadebyme.
S5:
HewaspunishedbyMr.Wang.
S6:
Thefishwaseatenbythecat.
Observethetwogroupsofsentencesandtrytofindthedifferencesbetweenthem.
S1:
GroupAisinpresenttensewhileGroupBisinpasttense.
S2:
Weuse“is”or“are”ingroupA,butweuse“was”or“were”inGroupB.
S3:
过去时的被动语态。
S4:
was/were+pp
通过复习一般现在时的被动语态来过渡到一般过去时的被动语态。
以旧引新、比较学习能让学生更快地掌握新知识。
一定要把学生说出的被动语态的句子板书出来，为后面的教学作准备。
如果学生能正确地表述过去时的被动语态，老师直接板书，如果不能，老师要引导学生总结出来。
2
Pre-listening
（4mins）
Classactivity
Individualwork
Step1:
Usepictures,realobjectsorPPTtoteach:
rocket,satellite,spaceship,metal.
T:
Lookatthepicture.What’sit?
Step2:
LettheSsreadthestatementsin1bandguessthemeaningofbemadeof.
T:
Now,readthestatementsin1bandtrytoguessthemeaningofbemadeof.
T:
Whoknowsthemeaningofbemadeof?
Handsup,please!
T:
Almostright,butnotexactly.Anyoneelse?
T:
Goodboy!
Yougotit!
Learnthenewwords.
Ss:
It’sarocket.
Ss:
..
Readthestatementsin1bandguessthemeaningofbemadeof.
S1:
被...制成
S2:
由...制成
这几个单词需要老师引导才能学习。
3
While-listening
（2mins）
Individualwork
LettheSslistento1aanddo1b.
T:
Now,listento1aanddo1b.Wewillchecktheanswersafterlistening.
T:
Haseverybodygottheanswers?
T:
Yes!
Youplease.
T:
Nextone?
T:
...
Listento1aanddo1b.
S1:
No.1isF
S2:
No.2isF
S3:
...
S4:
...
4
Post-listening
（12mins）
Individualwork
Individualwork
Step1:
LettheSsreadthequestionsin1c,andthenread1aandfindtheanswerstothequestions.
T:
Hereare4questionsin1c.Readthemquickly,andthenread1aandunderlinetheanswerstothequestions.Ifyoufinish,raiseyourhand,please.
T:
Now,it’stimetochecktheanswers.Pleaseusefullsentencewhileanswering.Whowantstoanswerthefirstquestion?
T:
Perfectanswer!
Whowantstotrythesecondone?
T:
...
Step2:
LettheSsread1aagainandunderlinethepassivevoiceandthekeypoints.
T:
Now,youwillread1aagain.Thistime,youwillunderlinethepassivevoice,thedifficultpointsandkeypoints.Whenyoufinish,raiseyourhand.
T:
First,let’sdealwiththepassivevoice.xxx,please.
T:
Youaresmart.Let’scometothesecondpart:
thedifficultpoints.Whohasquestions?
T:
Goodquestion!
It’saveryimportantsentence.It’susuallyusedtoexpresswishes，butit’sunlikelytocometrue.
T:
Now,whataboutkeypoints?
Comeon!
Readthequestionsin1c,thenread1aandfindtheanswerstothequestions.
S1:
Becauseit’sbadforherhealthifshespendstoomuchtimeoncomputergames.
S2:
Arocketisusedforsendingsatellitesorspaceshipsintospace.
S3:
...
Read1aagainandunderlinethepassivevoiceandthekeypoints.
S1:
Iwasnotallowedtoplaycomputergameslastnight.
S2:
Itwasmadebyme.
S3:
What’sitmadeof?
....
S4:
Why“could”isusedinthesecondsentencefromthebottom?
CanIuse“can”instead?
S5:
beallowedtodosth.,bebadfor…
S6:
spend...onsth.,bemadeof…
S7:
beusedfordoingsth….learn…from…,cometrue…
wish表示祝愿、愿望，要给学生强调这个愿望不太可能实现。
但不要讲得太深，虚拟语气可以不提。
5
Finishing
Task2
（5mins）
Individualwork
Pairwork
Step1:
LettheSsreadtheexamplesin2andfindthedifferencesbetweenExampleOneandExampleTwo.
T:
Now,readtheexamplesin2andfindthedifferencesbetweenExampleOneandExampleTwo.
T:
Whatdifferenceshaveyoufound?
T:
Superb!
Whatelse?
T:
Right!
Ifyoucanseethematerialwithyournakedeyes,youshoulduse“bemadeof”.Ifnot,use“bemadefrom”.Forexample,thelockismadeofmetal.Youcanseeitclearlywithyournakedeyes.But,asforthepaper,youcan’tseewooddirectlywithyournakedeyes,soyousaythepaperismadefromwood.Now,lookatthepicturesbelowthedialogs.Seeifyoucanseethematerialwithyournakedeyes.
T:
Let’scheck.Computerdesk,bemadeoforbemadefrom?
T:
Chopsticks?
...
T:
Welldone!
Howdowedecidewhethertouseaprepositionornot?
Theansweris:
iftheactionisdonebytheobjectitself,thereisnoneedtouseapreposition,andifnot,thenaprepositionisneeded.
Step2:
LettheSsmakeupsimilardialogsinpairs.
T:
Now,let’sdopairwork.Makeupsimilardialogs.Goahead!
T:
I’dlikesomepairstoactoutyourdialogs.Whichpair?
T:
...
Readtheexamplesin2andfindthedifferencesbetweenExampleOneandExampleTwo.
S1:
“Bemadeof”isusedinExample1and“bemadefrom”isusedinExample2.
S2:
Thereisapreposition“on”after“write”,butthereisnoprepositionafter“lock”.
Ss:
Bemadeof.
Ss:
Bemadeof.
...
Makeupsimilardialogsinpairs.
S1:
What’sthecomputerdeskmadeof?
S2:
It’smadeofwood
S1:
What’situsedfor?
S2:
It’susedforputtingcomputerson.
这个部分分成两步骤来完成较好。
第一，帮助学生区分bemadeof和bemadefrom的用法。
第二，如何运用介词。
理解这两点，有利于学生构建对话。
学生不能解释清楚的老师要补充。
老师在此过程中，顺便解释：
lock。
为了简单明了，老师可以用汉语解释，因为涉及到不少术语，学生难以听懂。
7
Finishing
Task3a
（5mins）
Individualwork
Individualwork
Step1:
LettheSslookatthepicturesin3atolearnthenewwordslaptopanddigital,andthenlistento3aandnumberthepictures.
T:
Doyouknowwhatthepicture1is?
T:
Yes,butwecallitalaptop.Becauseweusuallyputitonthetopofourlapwhileusingit.
T:
Howaboutthepicture3?
T:
It’sadigitalcamera.
T:
Now,youwilllistento3aandnumberthepictures.
T:
Checkanswers!
Step2:
LettheSslistento3aagainandfillinthetablein3a.
T:
Listento3aagainandfillinthetablein3a.
T:
Now,let’schecktheansweronebyone.First,laptop.Whatisitmadeof?
T:
What’situsedfor?
T:
...
Learnthenewwords,listento3aandnumberthepictures.
Ss:
It’sacomputer.
Ss:
It’sacamera.
Ss:
..
Listento3aagainandfillinthetablein3a.
S1:
It’smadeofplastic.
S2:
It’susedfor....
S3:
...
8
Finishing
Task3b
（3mins）
Pairwork
LettheSsreadtheexamplein3b,andthenmakeupsimilardialogsinpairsbasedontheinformationinthetablein3b.
T:
First,readtheexamplein3b,andthenmakeupsimilardialogsinpairsbasedontheinformationinthetablein3a.
T:
Goodnews!
Iwillhaveaphotowiththefirstpair!
Whichpairwillbethefirstone?
Readtheexamplein3b,andthenmakeupsimilardialogsinpairsbasedontheinformationinthetablein3b.
S1:
Whatisacellphonemadeof?
S2:
It’smadeofplasticandmetal.
S1:
What’situsedfor?
S2:
It’susedformakingtelephonecalls.
S1:
...
S2:
...
9
Summarizingandassigning
homework（4mins）
Classactivity
Step1:
LettheSsgooverthissectionandsumupthekeypoints
T:
Wehaveonlyafewminutesleft.Let’ssumupthekeypointsofthissection.
T:
Let’sbeginwithgrammar.
T:
What’sthestructureofit?
T:
Andkeypoints?
Step2:
HMK
T:
Now,computersarewidelyusedinourdailylife.Butdoyouknowthehistoryofcomputers?
Findsomeinformationaboutcomputersandwriteashortpassage.Trytousethepastpassivevoiceasmuchaspossible.
Sumupthekeypoints.
Ss:
Passivevoiceinthepast.
Ss:
Was/were+pp
S1:
Bemadeof,bemadefrom,beusedfordoingsth.
S2:
Allowsb.todosth.,beallowedtodosth….
S3:
Spend…onsth.
S4:
Iwish….
S5:
…
Ⅶ.Blackboarddesign
Whenwasitinvented?
SectionA
Wordsandphrases:
rock
satellite
spaceship
metal
lock
laptop
digital
bemadeof
cometrue
beusedfordoingsth.
bemadefrom
Grammar:
thepastpassivevoice
structure:
was/were+pp
Sentences:
What’sitmadeof?
It’smadefromwood.
What’situsedfor?
It’susedforlockingthedoor.
IwishIcouldgointospacesomeday.
Ihopeyourdreamwillcometrue.
升级会员 