9bunit1Reading.docx
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9bunit1Reading
课题
9BUnit1LifeonMarsReading
课型
新授课
教学目标
知识目标：
四会内容：
词汇：
imagineplanetcrowdedpollutedhopefullyhumandevelopsuresettlefloatfashionablevariouscompareforcevehiclestarpopulationenjoyablenormal
句型：
ManypeoplebelievethatwewillliveontheplanetMarsbytheyear2100.
However,nobodyissureiftheseplanetscanproduceenoughwater.
Manypeoplebelievethatrobotswilldomostofourworkandthatwewillhavemoretimeforourhobbies.
三会内容：
词汇：
spacecraftspaceshuttlegravitydomeinterplanetary
技能目标：
1、了解未来在另一个行星上生活的语境。
2、识别和理解有关火星生活的词汇。
3、识别并列出地球生活与火星生活的不同之处。
情感、态度、价值观：
培养学生的环保意识。
重点难点
了解火星地理、环境背景，获取一定的信息，完成课文理解以及书后练习。
学情分析
学生具备一定的地理以及环保的常识，但是独立理解科普以及科幻的文章还是有一定困难，需要教师先对课文背景知识进行讲解与引导，并帮助学生分析课文结构和大意。
教学方法
任务型教学
教具准备
多媒体课件
教学步骤
教师活动
学生活动
个性化设计
Step1Pre-reading
T:
Everyoneknowsthat China haslaunchedChang’eIintospace.That’sreallyexciting.ItcanhelpustoknowmoreaboutMoon.HaveyoueverthoughtoflivingonMoonorsomeotherplanets?
WeareusedtolivingonEarth,butsomepeoplearethinkingaboutmovingtootherplanets.Why?
Let’slookatsomepicturesfirst.（PPT）
1.Lead-in
T:
Whatcanyoufindfromthepictures?
—WhatproblemsdoesEarthhave?
T:
ThepicturesshowthatEarthhastwoproblems:
oneisthelargepopulation（It’scrowded）,theotheristheseriouspollution（It’spolluted）.
T:
NowEarthiscrowedandpolluted.Whatshallwedo?
Somescientistssaythereisabetterworld—Mars.（PPT）DoyouknowtheplanetMars?
AndbeforewestarttoreadthearticleMars.Let’shavealookatthesenewwordsfirst.
PresentthepictureofMarsandaspacecraft.
Say:
HowcanwetraveltoMars?
（wecantraveltoMarsbyspacecraft.）
Teach“spacecraft”
Say:
SpacecraftsaretooslowtotakesomanypeopletoMarsatthemoment.Butbytheyear2100,wecantraveltherebyspaceshuttles.Spaceshuttles
Presentapictureofspaceshuttles（PPT）
2.Pre-reading
T:
Boysandgirls,howmuchdoyouknowaboutMars?
Doyouitscolor,itssizeandsomeotherinformation?
NowletmeshowyoumyresearchonMars.（PPT）
1）ThecolorofMars:
red;
2）Thesize:
aboutone-halfthediameterofEarth;
3）Location:
It’sbetweenEarthandJupiterinoursolarsystem.
4）Itsmoons:
PhobosandDeimos
5）Surface:
ThesurfaceofMarsisalittlelikethesurfaceofEarth.
6）Temperature:
Thelowesttemperaturewillbe-133℃（degreescentigrade）andthehighestwillbe27℃（PPT）
T:
（Presentmorewordsandexpressions）Marsissuchaplanethowwillpeoplelivethere?
Thefirstsettlershavetowearspacesuitand hemet topreventlaserlight.Peoplecaneasilyfloatbecauseofthelow-gravity.Sotheywearspecialbootstomakethemselvesheavier.Peoplecanliveindomes.ItissaidthatMarswillturnintoanotherblueearthinthefuture.Ithinkpeoplecanlivemorecomfortablebythen.
T:
NowyouhavelearnedsomethingaboutMarsfrommyresearch.ButisthereanythingelseyouwanttoknowaboutMars?
T:
PleasefillintheblankswiththecorrectwordsaccordingtothewholesentenceandtheEnglishexplanationinthebrackets.（PPT）
T:
OK.Let’schecktheanswerstogether.
1）Alargebodyinspacethatmovesaroundthestar,e.g.,thesunmeansplanet.
2）Apowerthatkeepsusfromfloatingintheairmeansgravity.
3）Avehicledesignedfortravelinspacemeansspacecraft.
4）Peoplewhogotoliveinanewplacemeansettlers.
5）Growandimprovemeansdevelop.
6）Machinesthatcandotasksunderthecontrolofcomputermeanrobots.
7）Smallroundpiecesofmedicinemeanpills.
T:
Nowreadthenewwordsafterme.（2遍）
Newwords:
planetgravityspacecraftsettlersdeveloprobotspills
T:
WhatisthefastestwaytolearnmoreaboutMars?
That’ssearchingtheInternet.Nowlookatthekeywords.Guesstheirmeaningsfirstandthenusethesearchenginestohelpyou.TrytofindtheinformationaboutthemontheInternet.（PPT）
1）crowdedplanet:
ThepopulationonEarthisabout6.4billionin2007.It’sstillincreasingquickly…populationheremeansthenumberofpeople.（PPT）
2）spaceshuttles:
Theyarenewkindsofspacecraftwhichcantravelfasterinspace.（PPT）
3）speedboots:
Theyarespecialshoesthatcanmakeyouwalkfasterinspace.（PPT）
4）spacehome:
It’saspecialroundhouseinspace.（PPT）
5）robotsettlers:
Settlersarethepersonswhomovetoanewplace./MayberobotswillmovetoMarsandliveonitfirst.（PPT）
6）onlineteacher：
Theteacherwhocanhelpyouatanytimeandanyplaceinanon-lineschoolsiscalled‘e-teacher’.（PPT）
Step2While-reading
1.Skimming
T:
Nowwouldyoupleaseopenyourbooksatpage8?
Readthearticlequicklyandfindoutthekeywordofeachparagraph.Itcanbeawordorsomewords.Youdon’thavetoreaditwordbyword.Justskimit.Thiskindofreadingskilliscalledskimming.
T:
OK,boysandgirls.Let’schecktheanswersnow:
（PPT）
Para 1
Crowded,polluted（population,pollution）
Para 2
Transport
Para 3
Food,waterandair
Para 4
Gravity
Para 5
Home
Para 6
School
Para 7
Food
2.Scanning
T:
That’sveryeasyforyou,right.Readeachparagraphagain,thistimeyoushouldbemorecarefulandpaymoreattentiontothedetails.Whilereadingthearticle,pleasefindouttheanswerstothequestions.It’sanotherkindofreadingskillcalledscanning
T:
Now,boysandgirls,pleaselookatthescreenhere,let’schecktheanswers.（PPT）
※Transport（PPT）
1）WhatvehicledopeopleusetoMarsatpresent?
Andhowlongdoesittake?
（Spacecraft.Months.）
2）WhatvehiclemaypeopleusetogotoMarsinthefuture?
Andhowlongwillittake?
（Spaceshuttles.Onlyaveryshorttime.）
※air,water,food（PPT）
3）Whatwillscientistsdotosolvetheproblemsoffood,waterandair?
（ScientistswilldevelopplantsthatcangrowonMarsandproducethefood,waterandoxygen.）
4）WhatwillfoodonMarsbelike?
（Maybethefoodwillbeintheformofpillsandwillnotbeastastyastheyaretoday.）
※Gravity（PPT）
5）IsgravityonMarsabigproblem?
Why?
（Yes,itis.BecausethegravityonMarsisthree-eighthsofthegravityonEarth.）
6）Whatmayhappenthen?
（Peoplemayjumphigheasilyandfloatawayintospace.）
7）Whatkindofshoesshouldpeoplewear?
（Peopleshouldwearspecialbootstomakethemselvesheavier.）
※Home（PPT）
8）Whatkindofhousemaypeoplelivein?
（Aspecialdomewith10bedroomsishighlypossible.）
9）Whowilldomostofourwork?
（Robotswilldomostofourwork.）
※School（PPT）
10）Whatkindofschoolwillstudentsstudyin?
Andwhatdotheycalltheirteacher?
（Studentscanstudyinonlineschoolsandtheycalltheirteacher‘e-teacher’.）
T:
Well,youreallydidagoodjobtoday.FromthereadingweknowthatlifeonMarsisverydifferentfromthatonEarth.Pleasecomparethesedifferencesandfillintheformbelow（PPT）
T:
Haveyoufinishednow?
Let’schecktheanswerstogether.
Step3Post-reading
1.Fillintheblanks（PPT）
Earthtoday
Marsin2100
pollutedandcrowded
1
Spacecraftareslow.
2
Gravityisnotaproblemforus.
3
Peoplecanwearmanytypesofshoes.
4
Peopledonothavemuchspace.
5
Wetakeexamsatschool.
6
Wehavemanykindsoffoodwithdifferenttastes.
7
Keys:
1）cleanandhaslotsofspace
2）Spaceshuttlestravelathalfthespeedoflight.
3）onlyaboutthree-eighthsofthegravitythatwehaveonEarth
4）Peoplewearspecialboots.
5）Peopleliveinadomewith10bedrooms.
6）Wetakeexamsinonlineschools.
7）Mealsarejustpills.
T:
Congratulations!
You’vegotalltherightanswers.Youknowevery‘coinhastwosides’.HerearesomegoodpointsandbadpointsoflivingonMars.Wecallthe‘goodpoints’“advantages”and‘badpoints’“disadvantages”.Pleaselookatthescreenandfillintherightwords.
T:
OK?
Let’schecktheanswersnow.
Advantages
※It’snot_______or________.
※The________ismoreconvenient.
※Peoplewillwearspecial_____
※Peoplewillhave______space.
※______willdomostofourwork.
※We’llhavemoretimefor_______.
※Studentswillstudyin______schools.
Keys:
1crowdedpolluted2transport3boots4more5Robots6hobbies7online
Disadvantages：
※Low_______willbedangerous.
※Fooddoesnottaste_____.
※Spacetravelmakepeoplefeel________.
※It’stoo___tostayoutside.
※It’stoo____awayfromfriendsonEarth.
Keys:
1gravity2good3ill/sick4cold5far
T:
Nowwouldyoupleaseopenyourbooksatpage11oftheStudents’Book.PleasecompleteExerciseC1onpage11
T:
.Haveyoufinishedthem?
Let’schecktheanswers.（PPT）
Keys:
1a2b3c4c5b6b7a8b
T:
Welldone,you’verememberedsomuchaboutMars.Doyouhaveanydifficultieswhilereading?
Let’slookatsomesentencestogether.
Step4Explainsomeimportantsentences
1Therewillbevariousdesignsforsettlerstochoosefrom.将有许多种设计可供移居者选择。
tochoosefrom…“从……中挑选”。
e.g.我有很多双鞋子可以选择，但我决定不了选哪双。
Ihavemanypairsofshoes______（tochoosefrom）,butIdon’tknowwhichpair______.（tochoose）
2.Thejourneymighttakeonlyaveryshorttimeinspaceshuttlesthattravelathalfthespeedoflight.用以光速一半速度飞行的太空穿梭机进行旅程可能只花很短的时间。
分析：
此句是that连接的定语从句。
that引导的定语从句修饰先行词spaceshuttles,从句中的动词的人称和数由先行词spaceshuttles决定。
3.ComparedwithlifeonEarth,lifeonMarswillbebetterinmanyways.
与在地球上的生活相比,火星上的生活在很多方面将会更好.
comparewith…意思是“与……做比较”。
在句中是过去分词短语作状语，此
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