Unit 4Amazing Science Topic 2公开课教案SD.docx
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Unit4AmazingScienceTopic2公开课教案SD
Ⅰ.Materialanalysis本课是九年级第四单元第二话题的第四课时。
主活动是1a和Project。
“语法和功能”部分让学生总结归纳一般将来时的被动语态。
1a继续学习宇宙知识并讲述了人类探索宇宙的活动。
在这个部分还留下了一个悬念：
茫茫的宇宙中还有其他生命存在吗？
很好地激发了学生探索宇宙的欲望。
1b这个图表型的任务可以看作是一个跨学科衔接。
地理知识好，不用看1a也能完成，否则必须把1a读懂才能完成。
3是个有趣的活动。
学生在展开想象的同时可以顺便复习将来时的被动语态。
本课的Project不再是写作任务，而是口语活动任务。
以学生现有的知识不难完成此任务。
2是个写作任务，让学生描写“地球”。
由于写作需要较长的时间，故把2留作家庭作业。
Ⅱ.Teachingaims1.Knowledgeaims：
掌握本课的重点词汇和短语，了解太阳系的相关知识。
2.Skillaims:
能够通过“语法和功能”部分，把被动语态进行系统地整理。
能够借助1a的插图和文字，对太阳系有比较清晰的了解。
3.Emotionalaims:
（optional）激发学生探索宇宙的兴趣。
4.Cultureawareness:
（optional）Ⅲ.Thekeypointsanddifficultpoints
1.Keypoints:
Wordsandphrases:
launch,beyond,send…to…
Sentences:
Thesunanditsplanetsarecalledthesolarsystem.Somespaceshipshavegonebeyondthesolarsystem.
Grammar:
sumupfuturepassivevoice
Difficultpoints：
Withsomanystarsinspace,arewealone,oristherelifeonotherplanetsinspace?
Ⅳ.Learningstrategies学会梳理和总结归纳已学知识以便更好地记忆、理解和使用。
如：
总结所学过的所有被动语态。
能够通过课文的插图帮助理解课文。
在做Project的时候，要敢于积极发言，专注于表意，不要怕出错。
Ⅴ.Teachingaids火箭发射的视频/太阳系的图片/ppt等。
Ⅵ.Teachingprocedures
Stage
（timeperiod）
Interaction
patterns
Teacheractivity
Studentactivity
Remarks
1
Revision
（10mins）
Classactivity
Individualwork
Classactivity
Step1:
LettheSstakeouttheirHMKandencouragethemtoreadtheirletters.
T:
Hi,boysandgirls,haveyoudoneyourHMK?
T:
xxx,canyousharewithusyourlettertoUncleStephen?
T:
Verynicewritingindeed.Whoisyourpartner?
T:
Couldyoureadyourletter,xxx?
T:
Awonderfulletter.
Step2:
LettheSsreadthesentencesinGrammarandFunctionsandunderstandtheunderlinedparts.
T:
Now,turntopage95.PleasereadthesentencesinGrammarandFunctionsandunderstandtheunderlinedparts.
Step3:
LettheSssumupthepassivevoice.
T:
Hi,boysandgirls!
Howmanykindsofpassivevoicehavewelearned?
T:
What’sthefirstone?
T:
What’sthestructureofit?
T:
What’sthesecondone?
T:
…
Readtheirletters.
Ss:
Yes.
S1:
Sure.
DearUncle,
I’mveryhappytogettheletterfromyou.
I’mveryinterestedinthelifethere.Isitverycoldthere?
Whatkindofclothesdoyouwear?
ThereisnowateronMars.Howcanyougetfreshwater?
CanyouwalkonthesurfaceofMars？
Whatdoyouusuallyhaveforyourmeals?
I’mreallyproudofyou.IhopeIwilltravelthereoneday.I’mlookingforwardtohearingfromyou.
Yours,
Kangkang.
S1:
xxx.
S2:
OK!
DearKangkang,
I’mverygladtoknowthatyouareinterestedintheuniverse.
Thelifeconditionisveryhardhere.
Youknowthereisnowaterhere.Sowehavetocollectallthewastewaterandrecycleit…..
……………………………………
……………………………………
Ihopeyouwillworkhardfromnowon.Thenyourdreamwillberealizedinthefuture.
Yours,
UncleStephen
ReadthesentencesinGrammarandFunctionsandunderstandtheunderlinedparts.
Sumupthepassivevoice.
Ss:
Three.
Ss:
一般现在时态的被动语态。
Ss:
am/is/are+pp
Ss:
一般过去时态的被动语态。
Ss:
…
最好课前就选定要上台展示的学生。
不然会造成冷场。
老师最好不要唱独角戏，应引导学生自主总结归纳被动语态的知识。
2
Pre-reading
（2mins）
Classactivity
Step1:
Presentavideoaboutlaunchingasatellitetolearnthenewword:
launch.
T:
Whataretheydoing?
T:
Right.Theyarelaunchingasatellite.
Step2:
Presentthesolarsystemtoleadto1a.
T:
What’sthis,class?
T:
Whatisthisplanetcalled?
T:
Andthisone?
T:
Doyouwanttoknowabouttheuniverse?
Watchthevideoandlearnthenewword.
Ss:
发射卫星。
Learnaboutthesolarsystem.
Ss:
It’sthesolarsystem.
Ss:
It’stheearth.
Ss:
It’stheMars.
Ss:
Yes.
3
While-reading
（5mins）
Individualwork
LettheSsread1a,chooseapropertitleanddo1b.
T:
Now,read1a.Youwillfinishtwotasks.First,chooseapropertitle,then,do1b.Whenyoufinish,putupyourhand.
T:
xxx,whichdoyouthinkisthebesttitle?
T:
Doyouagreewithhim?
T:
Howabout1b?
T:
Isheright?
Read1a,chooseapropertitleanddo1b.
S1:
TheNo.1.
Ss:
Yes.
S2:
BDAC
Ss:
Yes.
4
Post-reading
（10mins）
Individualwork
Step1:
LettheSsread1aagainandfindoutthedifficultpoints.
T:
Now,pleaseread1aagainandfindoutthedifficultpoints,suchaswords,phrasesorsentences.Whenyoufinish,putupyourhand.
T:
Boysandgirls,anyquestions?
Handsup,please.
T:
xxx,please.
T:
Thissentencehastwogrammarpoints.“Scientiststhinkthat…”isanobjectclause.“Therehasbeen...ofyears”isperfecttenseof“Therebe”.WhocanputitintoChinese?
T:
Perfecttranslation.Whatelse?
T:
It’sanewword.Turntopage137.Seeifyoucanpronounceit.
T:
Whocantrytopronounceit?
T:
Right.Pleasefollowme,“beyond”.
T:
Couldyoutellmewhichsentenceisanattributiveclause?
T:
Asmartgirl.Youhavegotit.
Read1aagainandfindoutthedifficultpoints.
S1:
Whatdoesthefirstsentencemean?
S2:
科学家认为生命已经在地球上存在数百万年了。
S3:
Howtopronouncetheword“b-e-y-o-n-d”?
S4:
beyond.
Ss:
beyond.
S5:
Iknow.“Andtherearesevenotherplanetsthatalsogoaroundthesun.”
老师在说attributiveclause时，同时在黑板上板书“定语从句”。
因为在下一话题就要学习它，但是在这里先不讲解。
5
Finishing
Task3
（5mins）
Groupwork
LettheSsdiscussingroupstomakealistaboutwhatchangeswillhappentopeopleontheearthifaliensarefoundinthenearfuture.
T:
Now,imagineit’sfiftyyearslater.Aliensarefoundbyscientistsonotherplanets.Somealiensevenhavecometotheearthbyspaceships.Pleasediscussingroupsandmakealistaboutwhatchangeswillhappentopeopleontheearthastheexamples.Ifyoufinish,raiseyourhand.
T:
Whichgroupwantstohaveatry?
Discussingroupstomakealistaboutwhatchangeswillhappentopeopleontheearthifaliensarefoundinthenearfuture.
S1:
Somepeoplewillbekilledbyaliensorsomealienswillbekilledbypeople.
S2:
Newtechnologywillbetaughtbyaliens.
S3:
Thelanguageofthealienswillbelearnedbyus.
S4:
…
6
Finishing
Project
（11mins）
Groupwork
Individualwork
Individualwork
Step1:
LettheSsdiscussingroupsthelifeontheirownplanet.
T:
Now,youarelivingondifferentplanets.Discussingroupsthelifeonyourplanet,suchasclothing,foodanddrink,andsoon.Ifyoufinish,putupyourhand.
Step2:
Encouragetherepresentativesfromeachgrouptointroducetheirlivingconditions.
T:
Whichgroupwantstoshareyouridea?
Step3:
LettheSschoosewheretheywouldliketoliveandstatethereason.
T:
Eachgrouphasalreadydescribedthelifeondifferentplanets.Now,It’syourturntochoosewhichplanetyouwouldliketoliveon.Youshouldexplaintousthereason.
T:
xxx,whichplanetwouldyouliketolive?
T:
Howaboutyou,xxx?
Discussingroupsthelifeontheirownplanet.
Therepresentativesfromeachgroupintroducetheirlivingconditions.
S1:
WeliveonMars.Youknowitiscoldthere.Wehavetowearspecialclothes.Weplantvegetablesintheair.Allthewaterisrecycled.
Wetravelbyspaceships.
S2:
Weliveonthemoon.……
Choosewheretheywouldliketoliveandstatethereason.
S1:
I’dliketoliveontheearth.Theweatheriscomfortable.Icanenjoyallkindsoffruitandvegetables.
S2:
Iwanttoliveonthemoon.It’snottoofarawayfromtheearth.Icanvisittheearthbyspaceship.Icanbuythingsfromtheearth.
S3:
…
7
Summarizingandassigninghomework（2mins）
HMK
T:
Aspaceshipwillbesentouttofindaliensinouterspace.Aletterwillbeputonthespaceshiptointroduceourearth.Writeashortintroductionoftheearthafterclass.Inthenextclass,I’llaskseveralstudentstopresentyourwritingtotheclass.
Ⅶ.Blackboarddesign
I’mexcitedaboutthethingsthatwillbediscoveredinthefuture.
SectionD
Wordsandphrases:
launch
beyond
goaround
sendto
Grammar:
passivevoice
am/is/are+pp
was/were+pp
willbe+pp
Sentences:
Scientiststhinkthattherehasbeenlifeonearthfor
millionsofyears.
Andthereare…thatalsogoaroundthesun.
Withsomanystarsinspace,arewe….inspace?
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