高中英语人教版必修三教学案Unit 4 Section 4 Word版含答案.docx

高中英语人教版必修三教学案Unit 4 Section 4 Word版含答案.docx

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高中英语人教版必修三教学案Unit4Section4Word版含答案

Ⅰ.Matchthetopicsentencewithproperparagraph.

Para.1A．Wevisitedthemooninourspaceship!

Para.2B．Whenwegotthere,Iwantedtoexploreimmediately.

Para.3C．Butreturningtotheearthwasveryfrightening.

Para.4D．Beforeweleft,LiYanpingexplainedtome...themostpowerful.

答案：

Paras.1～4ADBC

Ⅱ.Choosethebestanswersaccordingtothetext.

1．Whenweweregoingup,wefelt________．

A．wewerepressedagainstourseats

B．wewerelighterthanweareontheearth

C．asifwewereflying

D．therocketwasshakingstrongly

2．Whycan'tthespaceshipfallbacktotheearth?

A．Becausethemoon'sgravitypullsitup.

B．Becauseitistoofarawayfromtheearth.

C．Becausetheearthhasnogravity.

D．Becausethespaceshipisnotveryheavy.

3．WhenIwasonthemoon,IfeltIwas________thanIamontheearth.

A．slowerB．heavier

C．clevererD．lighter

4．Ifababyisgrowingonthemoon,whenhegrowsup,hewillgrow________thanheisontheearth.

A．tallerB．shorter

C．fatterD．thinner

5．Thepassagemainlytalksabout________．

A．whatthemoonis

B．myvisittothemoon

C．thedifferencebetweentheearthandthemoon

D．LiYanping,myfriend,whoisanastronaut

答案：

1～5ABDAB

Ⅰ.单词拼写

1．Atruckwentoutofcontrolandcrashed（碰撞）intothebackofabus.

2．TheyoungmanknowslittleaboutNewton'slawofgravity（万有引力）.

3．Thesmellofnewbreadfloated（飘动）upfromthekitchen.

4．Don'tpull（拉）sohardorthehandlewillgooff.

5．Britainhasatemperateclimate（气候）．

6．Eggsaresoldbyweight（重量）．

Ⅱ.拓展词汇

1．biologyn．生物学→biologistn．生物学家

2．gentleadj.温和的；文雅的→gentlyadv.温和地

3．physicistn．物理学家→physicsn．物理学→physicaladj.物理的；物理学的；体力的

4．extinctadj.灭绝的；绝种的→extinctionn．灭绝；绝种

5．weightlesslyadv.失重地→weightlessadj.失重的

[巧记单词]

派生词

biologist

→biology＋去y＋ist

gently

→gentle＋去e＋y

physicist

→physics＋去s＋ist

Ⅲ.补全短语

1．blockout　　　挡住（光线）

2．breakout突发；爆发

3．cheerup感到高兴；感到振奋

4．nowthat既然

5．watchout（for）密切注视；当心；提防

6．getthehangof熟悉；掌握；理解

1．[教材原句]Whenwegetclosertothemoon,weshallfeelitsgravitypullingus,butitwillnotbeasstrongapullastheearth's.

当我们更接近月球时，就会感到月球的引力在拉我们。

但是，月球的引力不像地球的引力那么大。

[句型点拨]as＋adj.＋a/an＋n.＋as意为“像……一样的……”。

[佳句赏析]Pleasegivethemencouragementtoliveasrichandfullalifeasyoudo.

请给予他们鼓励，让他们和你们一样过着丰富多彩又充实的生活。

2．[教材原句]ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.

当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是在地球上的两倍，因而我摔倒了。

[句型点拨]twiceasfaras...属于“倍数＋as＋形容词/副词原级＋as...”结构，是一种倍数的表示方法。

[佳句赏析]Ournewlibraryisfourtimesaslargeastheoldone.

新图书馆是旧图书馆的4倍大。

3．[教材原句]“Ohdear，”Icried,“walkingdoesneedabitofpracticenowthatgravityhaschanged.”

“天哪，”我大声说，“既然重力改变了，看来走路也的确需要练一练了。

”

[句型点拨]从属连词nowthat意为“既然”，引导让步状语从句。

[佳句赏析]Nowthateverybodyishere,wecanbeginthemeeting.

既然大家都到齐了，我们可以开始开会了。

[课文对译]

AVISITTOTHEMOON

LastmonthIwasluckyenoughtohaveachancetomakeatripintospacewithmyfriendLiYanping,anastronomer.Wevisitedthemooninourspaceship!

Beforeweleft,LiYanpingexplainedtomethattheforceofgravitywouldchangethreetimesonourjourneyandthatthefirstchangewouldbethemostpowerful.Thenwewereoff.Astherocketroseintotheair,wewerepushedbackintoourseatsbecauseweweretryingtoescapethepulloftheearth'sgravity.Itwassohardthatwecouldnotsayanythingtoeachother.GraduallytheweightlessenedandIwasabletotalktohim.“Whyisthespaceshipnotfallingbacktotheearth?

OntheearthifIfallfromatreeIwillfalltotheground.”Iasked.“Wearetoofarfromtheearthnowtofeelitspull，”heexplained,“sowefeelasifthereisnogravityatall.Whenwegetclosertothemoon,weshallfeelitsgravitypullingus,butitwillnotbeasstrongapullastheearth's.”Icheeredupimmediatelyandfloatedweightlesslyaroundinourspaceshipcabinwatchingtheearthbecomesmallerandthemoonlarger.

Whenwegotthere,Iwantedtoexploreimmediately.“Comeon，”Isaid.“Ifyouareright,myweightwillbelessthanontheearthbecausethemoonissmallerandIwillbeabletomovemorefreely.ImightevengrowtallerifIstayherelongenough.Ishallcertainlyweighless！

”Ilaughedandclimbeddownthestepsfromthespaceship.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.“Ohdear，”Icried,“walkingdoesneedabitofpracticenowthatgravityhaschanged.”AfterawhileIgotthehangofitandwebegantoenjoyourselves.

Leavingthemoon'sgravitywasnotaspainfulasleavingtheearth's.Butreturningtotheearthwasveryfrightening.Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth'sgravityincreased.Againwewerepushedhardintoourseatsaswecamebacktoland.“Thatwasveryexhaustingbutveryexcitingtoo，”I