人教版高中英语必修3-第四单元-using-language-课件

必修三Unit4Astronomy：thescience

ofthestars必修三Unit4Astronomy：thesciencUsingLanguageUsingLanguageavisittothemoonReading2avisittothemoonReading2spaceshippullfloatgravityescapeweightn.宇宙飞船n.&vt.(拉）力；拖；牵引力vi.&vt.（使）浮动或漂浮n.漂浮物n.万有引力；重力vi.&vt.逃脱；逃避n.重量；体重Wordspreviewspaceshipn.宇宙飞船Wordspreview

cheerupnowthatbreakoutwatchout(for…)escapedoing…

感到兴奋；感到高兴既然突发；爆发密切注视；当心；提防逃避做…cheerup感到兴奋；感到高兴spacewalk★Lookatthepictures!★spacewalk★LookatthepicturesMan-madesatelliteMan-madesatellite

人教版高中英语必修3-第四单元-using-language-ppt课件Para11.WhodoIhaveachancetotraveltothemoonwith?2.Howdidwetraveltothemoon?LiYanpin,anastronomerbyspaceshipPara11.WhodoIhaveachanceReadPara.2and3;fillintheform.OntheearthInspaceOnthemoonThegravityTheweightverystrongdisappearedverylightveryheavynoweightandcouldfloataroundlikeafeatheraboutone-sixthofhisweightontheearthReadPara.2and3;fillinthePara.4ReturningtotheearthBecausefirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.1.Whywasreturningtotheearthveryfrightening?2.HowdidIfeel?Iwasveryexhaustedbutveryexcitedtoo.Para.4ReturningtotheearthLanguagepoints1…becausewearetryingtoescapethe

pulloftheearth’sgravity.

pulln.拉；拖；扯

Hegaveapullontherope.他拉了一下绳子。

(自然）引力

themoon'spullonthesea月球对海洋的引力Languagepoints1…becausewea2.Icheeredupimmediatelyandfloatedweightlesslyaroundinourspaceshipcabinwatchingtheearthbecomesmallerandthemoonlarger.cheerup:使感到振奋,感到高兴Shetriedtocheerupthedisappointedchildwhenhefailedtowinthegame.2.Icheeredupimmediatelyanfloat:浮动，漂浮

Woodfloatsonwater.

木头漂浮在水上。Afeatherfloateddownonthewind.

一根羽毛随风飘落。floatoff(搁浅的船)浮起float:浮动，漂浮1).“A+be+倍数+as+形容词原级+as+B”.Thistreeisthreetimesastallasthatone.Hisfatheristwiceasoldashe.2).“A+be+倍数+形容词比较级+than+B”

3.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.

1).“A+be+倍数+as+形容词原级+TheYangtzeRiverisalmosttwicelongerthanthePearlRiver.

长江差不多比珠江长两倍。

Thenumberofstudentsinourschoolisthreetimeslargerthanthatintheirs.

我们学校的学生数量比他们学校的多三倍。TheYangtzeRiverisalm

3).“A+be+倍数+the+名词(size,length,amount)+of+B”Thenewlybroadenedsquareisfourtimesthesizeofthepreviousone.

新扩建的广场是未扩建时的四倍大。

3).“A+be+倍数+the+名词4.Walkingdoesneedabitofpracticenowthatgravityhaschanged.nowthat,既然NowthatIamfree,Icanenjoymusicforawhile.

既然有空，我可以享受一下音乐。

nowthat同since相似，语气较弱，强调人们已知的事实。4.Walkingdoesneedabitof5.Wewatched,amazedasfirebrokeoutontheoutsideofthespaceshipastheearth’sgravityincreased.breakout

它与happen,takeplace,comeout等词是不及物动词，不能带宾语，不能用于被动语态。5.Wewatched,amazedasfi1)战争爆发

TheAmericanCivilWarbrokeoutin1861.

美国内战爆发于1861年。

2)发生争吵

Aquarrelbrokeoutbetweenthem.

他们之间发生了争吵。1)战争爆发3)(火灾)发生

A

fire

broke

out

in

his

house

last

night.

昨晚他家里失火了。与break相关的短语:

breakdown

打破;毁掉;破除;坍塌;坏掉

breakin

破门而入;打断3)(火灾)发生