武威二中

郭冬花Unit4Astronomy:thescienceofthestarsAVisittotheMoonBook3Unit4IIStep1RevisionStep2Lead-inStep4ReadingStep6DiscussionStep

7

WritingStep5SummaryAvisittothemoonStep3ListeningAquizonastronomyAquizonastronomyRevisionStep1

海王星Neptune

水星Mercury

金星Venus

地球Earth

火星Mars

木星Jupiter

土星Saturn

天王星UranusWhywastheearthdifferentfromtheotherplanets?

Waterremainedontheearth,whichmadeitpossibleforlifetodevelopspaceship

pullfloat

gravitycheerupnowthat

getthehangofbreakoutwatchoutforn.宇宙飛船n.&vt.拉（力）；拖；牽引力n.&vt.（使）浮動(dòng)（使）漂浮n.重力；地心引力感到高興；感到振奮既然熟悉；掌握；理解突發(fā)；爆發(fā)密切注視；當(dāng)心；提防Doyouknowwhoheis?Step2:Lead-in1._____wasthefirstpersonlandingonthemoon?A.ArmstrongB.YangliweiC.TomCruiseD.IssacNewton

2.Whendidhelandonthemoon?A.1921 B.1969C.1954D.1949

3.WhendidYangLiweigotospace?Oct,2003B.Jan,2003C.Oct,2004D.Jan,2002ABAStep3ListeningListentothetapeandanswerthefollowingquestions:Reading.mp31.Howmanytimeswouldtheforceofgravitychangewhentheyflewtothemoon?2.Wasthatleavingthemoon’sgravityaspainfulasleavingtheearth’s?Why?P30Fastreading:Readthepassagequickly,finishthetrueorfalsequestions:Thespaceshipcan’tfallbacktotheearthbecauseitistoofarfromtheearth.()2.Whentheywereonthemoon,theywouldnotfeelthegravitybecausetherewasnogravityonthemoon.()3.

Sincethegravityhadchanged,theirwalkdidn’tneedalotofpractice.()TFFStep4Reading3timesTheforceofgravitychange

change1

___________ashelefttheearthchange2___________whenhewasinspacechange3___________

whenhewasonthemoonverystrongdisappearedweakDetailedreading:ReadPara2carefullyandunderlinethe3sentencesaboutthechangesoftheforceofthegravity.(asheleft,inspace,onthemoon)

ReadPara3andfillintheblanks.Whenwegotthere,Iwantedto

________

immediately.“Comeon,”Isaid.“ifyouareright,my______willbe_________ontheearthbecausethemoonissmallerandIwill__________movemore_________.Imightevengrow_______ifIstayhere__________”explore

weightlessthanbeabletofreelytallerlongenoughReadPara4:Wastheirreturningpainful?Whathappenedtothespaceship?Yes.Firebrokeoutontheoutsideofthespaceship.Summary:

LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_____wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_______.Graduallytheweightl_______.WhenIwasinspace,itd__________.Wef______weightlesslyinthecabinandIc_________.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen______gravitychanged.Thereturningoftheearthwasveryf_________.Wewereamazedtowatchfireb________ontheoutsideoftheship.ravityeavyessenedisappearedloatedheeredupowthatrighteningreakoutStep5IfyoucouldvisitthemoonWhatwouldyouliketotakewith?Givesome

examples.Whatproblemsmightyoumeetwith?Tosolvetheseproblems,whatthingsmustyoutake?Discussion:

Step6ProblemsSituationsonthemoonEating,drinking,walkingbecomedifficultnowaternogasobjectsweighlessfloataroundlessgravityWhattodrinkYoumighthave4mainproblems:HowtobreatheproblemsWhattoeatWhattowear

spacesuitoxygentanksspacefoodthingsneededonthemoonIfyoufollowedthisadvice,Ithinkyouwouldhaveagoodtimeonthemoon.waterReference:IfIhadthechancetovisitthemoon,Imighttake...Imighthaveproblemssuchas...Thefirstoneis····Because····Tosolvethisproblem,Iwouldtake····withme.Thesecondoneis····Discussion:

Writesomethingaboutyourvisittothemoon,includingthingstotake,problemsyoumightmeetwithandhowyouwouldsolvethem.

Step7

Writing

巧用單元語法和句型1.如果我有機(jī)會(huì)參觀月球，會(huì)有一些我可能要面對(duì)的問題。IfI________________________________,___________________________Imightbefacedwith.2.在地球上我們吃喝都很容易。Ontheearth,itis_______________________3.在月球上，重力如此弱以至于食物會(huì)到處漂浮Onthemoon,_________________________________________________4.用這種方法，這個(gè)問題就可以被解決Onlyinthisway_________________________hadachancetovisitthemoontherewouldbesomeproblemseasyforustoeatanddrinkthegravityissoweakthatthewouldtheproblembesolvedfoodwillfloataroun