高一英语课件：unit4-a-visit-to-the-moon教学教材

高一英语课件：Unit4-A-visit-to-the-moonrocket1.Whohadachancetotraveltothemoon?2.Howdidtheytraveltothemoon?3.Wasthereanythingchangedontheirjourney?Questions

4.Howmanytimeswouldtheforceofgravitychangeontheirjourney?When?Whichchangewouldbethemostpowerful?Whatabouthisweight?Questions

OnthemoonThechangeofgravityInspaceVerystrongDisappeared

VerylightLeavetheearthOntheearthInspaceOnthemoonTheweightchangedHebecameveryheavy.Hehadnoweightandcouldfloatweightlesslyaroundintheirspaceship.Hewasaboutone-sixthofhisweightontheearth.Readthepassageandfillintheform.5.whathappenedtohimwhenhetriedtostepforward?6.whywasreturningtotheearthveryfrightening?7.Howdidhefeel?Questions

LastmonthIvisitedthemoonwithmyfriend.Beforeweleft,Iwastoldtheforceofg_____wouldchangethreetimesonourjourney.Thenwetookoff.Aswelefttheearth,Ibecameveryh_______.Graduallytheweightl_______.WhenIwasinspace,itd__________.Wef_______weightlesslyinthecabinandIc________.WhenIwasonthemoon,Iwassurprisedtofindoutevenwalkingneedslotsofpracticen______gravitychanged.Thereturningoftheearthwasveryf_________.Wewereamazedtowatchfireb________ontheoutsideoftheship.gravityheavylesseneddisappearedfloatedcheeredupnowthatfrighteningbreakoutFillintheblanksDiscussion?Ifyouwanttovisitthemoon,whatthingsyoumustprepareandwhatkindsofqualitiesyoushouldhave?1.LastmonthIwasluckyenoughtohaveachancetomakeatripintospacewithmyfriendLiYanping,anastronomer.

上个月我有幸得到一个机会同我的朋友，一位宇航员李彦平一道去太空旅行。Languagepoints

enough的用法:1）形容词作定语：enough用在名词前、后都可以。Ihaveenoughtimetodothework./Ihavetimeenoughtodothework.我有足够的时间做此项工作。2）用作副词修饰形容词或副词表示程度:enough一般放在形容词或副词的后边。longenough,fastenough,quicklyenough等。但一般不说：enoughlong,enoughfast,enoughquickly.Theboyisoldenoughtogotoschool.这孩子到上学的年龄了。3）用作副词修饰动词时也需放在动词之后。Themeatisnotcookedenough.肉炖得不够熟。IfIhad_____________________(足够长的假期),I’dvisitEurope,stoppingatallthesmallinterestingplaces.alongenoughholiday2.Thenwewere

off.随后我们就启程了。

beoff=setoff出发；动身

Iamofftoday.我今天不用上班。

Weare

offtoday.

今天我们不上班/今天我们不开张。

与off相关的短语:see...off送行jumpoff跳下

giveoff散发showoff炫耀getoff下车takeoff脱下turnoff关闭payoff付清；还清3.Whenwegetclosertothemoon,weshallfeelitsgravitypullingusbutitwillnotbeasstrongapullastheearth’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。getcloseto

靠近，接近，指动态变化becloseto

距......近，指状态Theschoolisclosetothepostoffice.4.cheerup:欢呼，喝彩，感到高兴，使高兴。当看到球队的到来，人群欢呼起来。_____________________whentheysawtheteamarrive.他带她去听音乐会来使她高兴。Hetookher_____________to____________.Thecrowdcheereduptotheconcertcheerherup1).“A+be+倍数+as+形容词原级+as+B”.

Thistreeisthreetimesastallasthatone.Hisfatheristwiceasoldashe.5.ButwhenItriedtostepforwardIfoundIwascarriedtwiceasfarasontheearthandfellover.

2).“A+be+倍数+形容词比较级+than+B”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。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。

经过实验，这种细胞已经变得有那种细胞的三倍大了．1.Aftertheexperiment,thiscellhasbecomethreetimesaslargeasthatone.2.Aftertheexperiment,thiscellhasbecometwicelargerthanthatone.3.Aftertheexperiment,thiscellhasbecomethreetimesthesizeofthatone.6....“walkingdoesneedabitofpracticenowthatgravityhaschanged.”......既然引力改变了，走路也的确需要练一练了。

nowthat同since相似，语气较弱，强调人们已知的事实。Translation:1.既然你忙,就让我给你做吧。Nowthatyouarebusy,letmedoitforyou.2.既然人都齐了,咱们开始干吧。Nowthateveryoneishere,let’sstartwork．7.Wewatched,amazedasfirebrokeout

ontheoutsideofthespaceshipastheearth’sgravityincreased.amazed是过去分词，此处做状语用

他进来的时候没有人注意到.Hecamein_________.breakout(战争,争吵,疾病等)爆发unnoticed它与happen,takeplace,comeout等词的用法一样，是不及物动词，不能带宾语，不能用于被动语态。

1)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。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breakawayfrom脱离政党;打破陈规

breakthrough突围;突破breakup打碎;拆散;分裂;分解breakone'sword/promise食言;说话不算数translation1．太阳系_____________2．及时，总有一天_____________3．阻止，制止______________4．依靠，信赖______________5．感到高兴______________6．既然，由于______________7．蔓延______________8．一般而言______________9．除了---之外还______________10.作一次太空旅行______________solarsystemintimepreventfromdependoncheerupnowthatspreadgenerallyspeakingaswellasmakeatripintospace11．熟悉，掌握_____________12．突发，爆发_____________13．增多，使繁殖_____________14．大气层，气氛_____________15．随着时间的流逝____________16．与…不同______________17．冷却_______________18．失重地________________19．全球变暖________________20．地心引力_________