高中英語人教版必修3Unit4Astronomythescienceofthestarsperiod3教案1

UsingLanguage:ReadingAVisittoTheMoon【學(xué)習(xí)目標(biāo)】1.掌握重點(diǎn)詞匯和短語的意義及用法。2.自主學(xué)習(xí)，合作探究，掌握文中的長難句。3.能利用相關(guān)閱讀技巧完成閱讀任務(wù)。4.拓展關(guān)于“宇宙”的相關(guān)英語背景知識(shí)。【重點(diǎn)難點(diǎn)】重點(diǎn):提高閱讀能力；熟記重要詞匯短語及其用法。難點(diǎn):長難句分析預(yù)習(xí)案PreviewingCases【使用說明及學(xué)法指導(dǎo)】1.先通讀教材，完成表層理解題，在勾畫出文中的疑難點(diǎn)，了解地球引力在航行過程中的三次變化。2.了解一些重點(diǎn)單詞及短語的用法.3.掌握倍數(shù)的表達(dá)法一輪閱讀做題目1.ReadandthendescribethethreewaysinwhichgravitychangedforLiYanpingandhowhisweightchanged.1).Thepullofgravitybecameverystrong_______shelefttheearth’satmosphere.Hisweightisnormal.2).It____________whenhewasinspace.Heis___________.3).Itwasvery__________whenhewasonthe_________.Heweighs_______thanonearth.二二輪閱讀找難點(diǎn)學(xué)習(xí)建議：在文中勾畫出單詞、短語、重點(diǎn)句型，并結(jié)合語境猜測(cè)其含義，再試著關(guān)上課本完成下面練習(xí)。1._____________________whentheysawtheteamarrive.當(dāng)看到球隊(duì)的到來，人群歡呼起來2.a.We_____________________behindthetrees.我們看著太陽正在樹后面落下b.Everydayasthey__________________,theirheartsfilledwithhope.每一天當(dāng)他們看到植物生長，他們的心里都充滿了希望.3._________________________,wecanbeginthemeeting.既然每個(gè)人都到了，我們就可以開始會(huì)議4.I’vebeentryingto______________thisnewtypewriter.我一直想知道這部新的打字機(jī)的用法.5._________________suddenlyatmidnight.在深夜,突然有人吵架我的疑惑：請(qǐng)你將預(yù)習(xí)中未能解決的問題和有疑惑的問題寫下來,待課堂上與老師和同學(xué)探究解決._____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________探究案ExploringCases探究點(diǎn)一：長難句分析。通過分析句子成分來理清句子結(jié)構(gòu)。1.Beforeweleft,LiYanpingexplainedtomethattheforceofgravitywouldchangethreetimesonourjourneyandthatthefirstchangewouldbethemostpowerful.(1)此句是一個(gè)由_______連接的,由_________引導(dǎo)的__________從句,作___________的_________.其中,第一個(gè)_______可省,第二個(gè)_______不能省.(2)翻譯本句話:____________________________________________________________________________________________________________________________________________________.(3)仿寫：他解釋說他并沒有偷那個(gè)婦女的錢包,并說自己其實(shí)是在做好事.Heexplained_____________________________________________________________________________________________________________________________________.2.Whenwegetclosertothemoon,weshallfeelitsgravitypullingus,butitwillnotbeasstrongapullastheearth’s.在本句中劃線部分應(yīng)翻譯成:_______________________________________________.仿寫:當(dāng)?shù)卣鸢l(fā)生的時(shí)候,我感覺到整個(gè)大地在搖晃.________________________________________________________________________.asstrongapullastheearth’s,應(yīng)翻譯為:____________________________________表示倍數(shù)的方法有:a:___________________________________________________________________例句:________________________________________________________________b:___________________________________________________________________例句:________________________________________________________________c:____________________________________________________________________例句:_________________________________________________________________3.Walkingdoesneedabitofpracticenowthatgravityhaschanged.(1)翻譯:____________________________________________________________________(2)nowthat同since相似，語氣較弱，強(qiáng)調(diào)人們已知的事實(shí)。造句:a:既然你忙,就讓我給你做吧_________________________________________________________________________b:既然人都齊了,咱們開始干吧_________________________________________________________________________4.Wewatchedamazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.amazed在句中是___________充當(dāng)____________(句子成分).仿寫:他進(jìn)來的時(shí)候沒有人注意到.Hecamein__________________.課堂自測(cè)自測(cè)習(xí)題見《同步方略》P6163及同步練習(xí)5句型運(yùn)用板塊。一.Thepullofgravitybecameverystrongwhenshelefttheearth’satmosphere.Hisweightisnormal.Itdisappearedwhenhewasinspace.HeisweightlessItwasverylightwhenhewasonthemoon.Heweighslessthanonearth二.1.Thecrowdcheeredup2.a.watchedthesunsettingb.watchedtheplantgrow3.Nowthateverybodyishere4.getthehangof5.Aquarrelbrokeout探究案1．(1)此句是一個(gè)由__and_____連接的,由____that_____引導(dǎo)的___并列賓語_______從句,作___explained________的___賓語______.其中,第一個(gè)___that____可省,第二個(gè)_that______不能省.(2)翻譯本句話:略(3)仿寫：他解釋說他并沒有偷那個(gè)婦女的錢包,并說自己其實(shí)是在做好事.Heexplained(that)hedidn’tstealthelady’spurseandthathewasinfactdoingagooddeed.(1)在本句中劃線部分應(yīng)翻譯成:感覺到它的引力正拉扯著我們仿寫:當(dāng)?shù)卣鸢l(fā)生的時(shí)候,我感覺到整個(gè)大地在搖晃.Whentheearthquakehappened,Ifeelthewholeworldshaking.（2）asstrongapullastheearth’s,應(yīng)翻譯為:和地球上的引力一樣強(qiáng)。表示倍數(shù)的方法有:a:A+be+倍數(shù)+as+形容詞原級(jí)+as+B例句:Thistreeisthreetimesastallasthatone.Hisfatheristwiceasoldasheb:A+be+倍數(shù)+形容詞比較級(jí)+than+B例句:TheYangtzeRiverisalmosttwicelongerthanthePearlRiver.Thenumberofstudentsinourschoolisthreetimeslargerthanthatintheirs.c:A+be+倍數(shù)+the+名詞(size,length,amount)+of+B”例句:Thenewlybroadenedsquareis