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1、Unit 4 Astronomy: the science of the starsastronomy (n)天文学天文学astronomer天文学家天文学家solar (a)太阳的太阳的,日光的日光的solar energy太阳能太阳能sun-sunny太阳太阳晴朗的晴朗的system (n)系统，体系系统，体系solar system太阳系太阳系religion (n)宗教宗教religious (a)宗教的宗教的theory (n)学说；理论学说；理论Big Bang 宇宙大爆炸宇宙大爆炸atom (n)原子原子atomic bombnuclear weapon原子弹原子弹-核武器核武器
2、billion (n, pron, a)十亿；万亿十亿；万亿(英英)violent (a)-fierce强烈的强烈的,暴力暴力激烈的激烈的,猛烈的猛烈的globe (n)球体球体;地球仪地球仪;地球地球global (a)全球的全球的;全世界的全世界的earth (n)地球地球;土壤土壤;尘世尘世in time on time及时；终于及时；终于-按时按时in no time at times at a timefrom time to time立刻立刻,马上马上-偶尔偶尔-每每次、依次次、依次-时不时时不时carbon (n)碳碳nitrogen (n)氮氮vapor (n)蒸汽；水蒸气蒸汽
3、；水蒸气atmosphere (n)大气层大气层;气氛气氛,环境环境unlike (prep)不同；不像不同；不像fundamental (n)基本的，基础的基本的，基础的fundamental-primary-elementary-basic最基础的最基础的-排序基础排序基础-初初级级-基本的，必要的基本的，必要的presence出席；到场；存在出席；到场；存在present (v;a;n)absent (a)提供提供;赠与赠与;当前的当前的;礼物礼物缺席的缺席的dissolve (v)溶解；解散溶解；解散harmful (a)有害的有害的be harmful to sb be bad fo
4、r sb对对有害有害acid (n)酸酸chain (n)链子链子;连锁连锁;锁链锁链chain/multiply store连锁店连锁店reaction (n)反应；回应反应；回应react to sthreact on对对.做出反应做出反应;对对起作用起作用multiply (v)乘；增加乘；增加plus-minus-multiply-divide加减乘除加减乘除multiply2 by4 is divide 8 by 4 is 22*4=8;8除除4=2oxygen (n)氧氧shellfish (n)水生有壳动物水生有壳动物amphibian (n)球体球体;地球仪地球仪;地球地球re
5、ptile (n)爬行动物爬行动物lay egg下蛋下蛋;(放置放置;搁下搁下)dinosaur (n)恐龙恐龙exist (vi)生存生存exist in-exist on存在存在.之中之中-靠靠为生为生existence (n) (in)生存生存 (现存现存)mammal (n)哺乳动物哺乳动物give birth to产生、分娩产生、分娩thus (ad)-so因此；于是因此；于是in ones turn轮到某人；接着轮到某人；接着dioxide (n)二氧化物二氧化物carbon dioxide 二氧化碳二氧化碳preventfrom阻止阻止不要不要puzzle (v; n)迷；难题；
6、迷；难题；(使使)迷惑迷惑 puzzle out琢磨透琢磨透biology (v)生物学生物学biologist (n)生物学家生物学家gravity (n)万有引力万有引力,重力重力satellite (n)卫星卫星;人造卫星人造卫星gentle (a)温和；文雅温和；文雅gentleman绅士绅士geologist (n)地质学家地质学家physicist (n)物理学家物理学家block out挡住挡住(光线光线)block offblock in (ad)关闭，封闭关闭，封闭使使受阻受阻extinct (a)绝种的绝种的;灭绝的灭绝的climate (n)气候气候temperature
7、-weather气温气温-天气天气comet (n)彗星彗星crash (v)-cash碰撞碰撞;坠落坠落-现金现金spaceship (n)宇宙飞船宇宙飞船pull (n, vt)拉力拉力;拖拖;拔拔;牵引力牵引力lesson (v)减少；减轻减少；减轻cheer up欢呼，感到振奋欢呼，感到振奋cheer sb on给某人加油给某人加油float (vi; vt;n)浮动；漂浮；漂浮物浮动；漂浮；漂浮物floatsink 漂浮漂浮沉沉weightlessly (ad)失重地失重地weight (n, vt)重量；体重；重任；重量；体重；重任；给给负重负重cabin (n)小屋，船舱小屋，船
8、舱mass (n; a)质量质量;团块团块;大量大量;群众群众的；大规模的的；大规模的a mass of一大团；一大团；now that既然；由于（同既然；由于（同since)get the hang of熟悉；掌握；理解熟悉；掌握；理解break out突发，爆发突发，爆发break away from脱离；放弃脱离；放弃(习惯习惯)break down毁坏；制服；坍塌毁坏；制服；坍塌break into破门而入；突然破门而入；突然起来起来exhaust (vt)用尽；使精疲力竭用尽；使精疲力竭sb be exhausted 某人精疲力竭某人精疲力竭begin with以以为起点为起点exp
9、lode with突然爆发突然爆发as well as也也.explode with anger勃然大怒勃然大怒depend on sb/ sth依靠某人；取决于某事依靠某人；取决于某事watch out密切注视；当心；提防密切注视；当心；提防 1.in time: sooner or later; eventually 迟早迟早;最终最终 我我迟早迟早会遇见他会遇见他. Ill see him in time. in time (for sth. /to do sth.): not late 及时；不迟及时；不迟 她会及时回来准备晚餐她会及时回来准备晚餐. She will be back
10、in time to prepare dinner. 你认为我们能及时赶上火车吗你认为我们能及时赶上火车吗?Do you think we can get there_ the train?in time forExercise: 与与time相关的短语相关的短语: on time 按时按时;准时准时 in no time 立刻立刻,马上马上 at times 有时有时 at a time 每次每次;依次依次 once upon a time 从前从前 at one time 从前从前 for the time being 暂时暂时 from time to time 不时地不时地 1)all
11、ow to = permit to do2)harmful adj. Opp: harmless ; harm n./v. be harmful to sb./sth.= do harm to sb. /sth. =do sb/sth harm 对对有害有害过多的二氧化碳对环境有害过多的二氧化碳对环境有害. Too much carbon dioxide is harmful to / does harm to the environment.2. What many scientists believe is that the continued presence of water allo
12、wed the earth to dissolve harmful gases and acids into the oceans and seas.3.This produced a chain reaction, which made it possible for life to develop.1)Chain reaction 连锁反应连锁反应2)Make it possible for life to develop. 使生命的发展成为可能使生命的发展成为可能 make it + adj./n. sb. /sth. to do sth. 老师让他们跟容易地明白那个问题老师让他们跟容易
13、地明白那个问题. The teacher _.made it easy for them to understand the question4.Others, called amphibians, were able to live on land as well as in the water. 另外一些叫作两另外一些叫作两栖动物栖动物,它们既能在陆地上生活也能在水里生存它们既能在陆地上生活也能在水里生存. as well as 表示表示“(除除.之外之外)也也; 既既又又”. 如如:Im learning French as well as English. 我学英语之外还学法语我学英语
14、之外还学法语.He grows flowers as well as vegetables. 他既种菜也种花他既种菜也种花He as well as I _ rock music. . “就远原则就远原则”likes5. They produced young generally by laying eggs.Its generally believed that一般认为一般认为generally speaking 一般而言，概括来说一般而言，概括来说 1) Its generally believed that girls work harder than boys do. 2) Gener
15、ally speaking, women cry more easily than men. 1) multiply v. 乘乘: 增加增加,繁殖；繁殖；7乘以乘以4等于等于28.4 multiplied by 7 is twenty-eight.我们的功课自上高中以来增多了我们的功课自上高中以来增多了.Our homework have multiplied since we came to high school.蚊子在夏天繁殖得很快蚊子在夏天繁殖得很快.Mosquitoes multiply rapidly in summer. 6. They multiplied and filled
16、 the oceans and seas with oxygen , which encouraged= Multiply 7 by 4 to make 28.7.They laid eggs too and existed on the earth for more than 140 million years. exist in 存在与存在与之中；之中；exist on 靠靠为生为生It was impossible for them to _such a small income. The universe _space.exist onexists in in existence 现存
17、的现存的 come into existence=come into being 开始存在、成立开始存在、成立When did this world come into existence?8.These animals were different from all life forms in the past, because they gave birth to young baby animals and produce milk to feed them. give birth to 1) 生（孩子）生（孩子） Shes just given birth to a healthy b
18、aby girl. 她刚刚生了个健康的女婴。她刚刚生了个健康的女婴。 2) 产生产生 The extraordinary experience gave birth to his latest novel. 这段奇特的经历促成了他的最新的一部小说的诞生。这段奇特的经历促成了他的最新的一部小说的诞生。9.Thus they have, in their turn, become the most important animals on the planets on the planet.1)thus adv. 因此；从而因此；从而 She studied hard, _ .thus she g
19、ot high marksHe forgot to turn on the radio and _. thus missed the program 2) In ones turn 轮到某人轮到某人It will be _ to be on duty tomorrow.in Sams turn10. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space. 阻止某人做某事阻止某人做某事 :prevent sb
20、. (from) doing sth.stop sb. (from) doing sth.keep sb. from doing sth.1) We must prevent them from making trouble.2) You should prevent the child from injuring himself.注意：注意：keep sb. from doing sth.中中from不可省略不可省略,但如在被动语态中但如在被动语态中,他们中的他们中的from都不可省。都不可省。11.Whether life will continue on the earth for mi
21、llions Of years to come will depend on whether this problem can be solved.depend on : 依赖，依靠依赖，依靠It /that all depends那得看情况而定那得看情况而定我们都靠你来做决定了我们都靠你来做决定了Well all _to make a decision.明天是否能开校运会取决与天气明天是否能开校运会取决与天气Whether to hold the sports meeting or not will _.depend on youdepends on the weatherdepend on
22、 sb. 依靠依靠,相信某人相信某人depend on sth. 取决与某物取决与某物12、fundamental,primary,elementarybasicf：原则上的，最基础的，也可以理解为最根本的，像宪法的地位就可以算作fundamentalp：主要的，初级的，首要的，强调一个先后顺序e：基础的，这里的主要意向是简单的，初级的，如果小学教育就是elementaryb：基本的，必要的13reactonreacttoreacton起作用于；对有影响；对产生影响例：Theriseofthechargesforwaterandelectricitywillreactonlivingexpen
23、ses.水电费的提高将对生活费用产生影响。reactto作出反应；起反应例：Hereactedwelltopenicillin.他对青霉素的反应良好。14.thusthus的基本意思是“如此,这样,以此方式”。Holdthewheelinbothhands,thus. 用双手握住方向盘Thetextrunsthus. 原文如此thus也可作“其结果是,因此,于是”解。Hedidntworkhard.Thushewasfired.他工作不努力,因此被解雇。15、crashcrash的基本意思是“撞碎,坠毁”,表示猛跌或猛撞并发出突然猛烈而又宏大的声音，引申可表示商业或金融机构突然破产或垮掉”。c
24、rash后常接介词tointo表示“撞毁”,接down表示“摔下”,接out表示“冲出”等Hecrashedhiscarintoawall.他的汽车撞到了墙上。Therockscrasheddownontothecar.岩石轰隆一声砸在汽车上。Isaac Newton,牛顿牛顿 16421727 Universal gravitation 万有引力万有引力Einstein, Albert (1879-1955) 爱因斯坦爱因斯坦Relativity（相对论）相对论） and the Cosmos （宇宙）宇宙）The theory about black holes （黑洞理论）黑洞理论）So
25、lar system水星水星最接近太阳，是太阳系中第二小行星。水星的英文名字最接近太阳，是太阳系中第二小行星。水星的英文名字MercuryMercury来自罗马神墨丘利。墨丘利也就是希腊神话中的来自罗马神墨丘利。墨丘利也就是希腊神话中的HermesHermes。或许由于水星在空中移动得快，才使它得到这个名字。或许由于水星在空中移动得快，才使它得到这个名字。 金星金星是离太阳第二近，太阳系中第六大行星。古希腊人称之为是离太阳第二近，太阳系中第六大行星。古希腊人称之为Aphrodite(Aphrodite(阿芙罗狄蒂阿芙罗狄蒂) )，是希腊神话中爱与美的女神。而在，是希腊神话中爱与美的女神。而在罗
26、马神话中爱与美的女神是维纳斯罗马神话中爱与美的女神是维纳斯Venus Venus ，因此金星也称做，因此金星也称做“维纳斯维纳斯”。 地球地球是距太阳第三颗，它是太阳系类地行星中最大的一颗，也是距太阳第三颗，它是太阳系类地行星中最大的一颗，也是太阳系第五大行星，行星年龄估计大约有是太阳系第五大行星，行星年龄估计大约有4545亿年亿年(4.5(4.5109)109)。地球是唯一一个不是从希腊或罗马神中得到的名字。地球是唯一一个不是从希腊或罗马神中得到的名字。EarthEarth一一词来自于古英语及日耳曼语。这里当然有许多其他语言的命名。词来自于古英语及日耳曼语。这里当然有许多其他语言的命名。在罗
27、马神话中，地球女神叫在罗马神话中，地球女神叫TellusTellus肥沃的土地。肥沃的土地。 火星火星为距太阳第四远，也是太阳系中第七大行星。因为火星在为距太阳第四远，也是太阳系中第七大行星。因为火星在夜空中看起来是血红色的，所以在西方，以罗马神话中的战神夜空中看起来是血红色的，所以在西方，以罗马神话中的战神MarsMars命名它。命名它。 木星木星是离太阳第五颗行星，而且是最大的一颗。木星是是离太阳第五颗行星，而且是最大的一颗。木星是天空中第四亮的物体。木星是自转最快的行星。在西方天空中第四亮的物体。木星是自转最快的行星。在西方称它为朱庇特称它为朱庇特JupiterJupiter，是罗马神话
28、中的众神之王，是罗马神话中的众神之王，相当于希腊神话中的宙斯（相当于希腊神话中的宙斯（ZeusZeus）。）。 土星土星是离太阳第六远的行星。是太阳系中仅次于木星的是离太阳第六远的行星。是太阳系中仅次于木星的第二大行星。中国古代称之为镇星或填星。土星的英文第二大行星。中国古代称之为镇星或填星。土星的英文名字名字SaturnSaturn（以及其他绝大部分欧洲语言中的土星名称）（以及其他绝大部分欧洲语言中的土星名称）是以罗马神的农神萨杜恩命名的。希腊神话中的农神是以罗马神的农神萨杜恩命名的。希腊神话中的农神CronusCronus是是UranusUranus（天王星）和该亚的儿子，也是宙斯的（天王
29、星）和该亚的儿子，也是宙斯的父亲。父亲。 天王星天王星是太阳系中离太阳第七远行星，颜色为灰蓝是太阳系中离太阳第七远行星，颜色为灰蓝色，是一颗巨型气体行星色，是一颗巨型气体行星(Gas Giant)(Gas Giant)。以直径计。以直径计算，天王星是太阳系第三大行星；天王星的命名，算，天王星是太阳系第三大行星；天王星的命名，是取自希腊神话的天神乌拉诺斯是取自希腊神话的天神乌拉诺斯 Uranus Uranus。乌拉。乌拉诺斯是古希腊神话中的宇宙之神，是最早的至高无诺斯是古希腊神话中的宇宙之神，是最早的至高无上的神。他是该亚的儿子兼配偶，是上的神。他是该亚的儿子兼配偶，是CronusCronus（
30、农神（农神土星）、独眼巨人和泰坦（奥林匹斯山神的前辈）土星）、独眼巨人和泰坦（奥林匹斯山神的前辈）的父亲。的父亲。 海王星海王星为太阳系九大行星中的第八个，是一个巨行为太阳系九大行星中的第八个，是一个巨行星。海王星。目前海王星是太阳系内离太阳第二远星。海王星。目前海王星是太阳系内离太阳第二远的行星。海王星的名字是罗马神话中的海神涅普顿的行星。海王星的名字是罗马神话中的海神涅普顿（NeptuneNeptune）。古希腊神话中海神叫波塞冬）。古希腊神话中海神叫波塞冬 (Poseidon)(Poseidon)。 Man had evolved from apes. EarthHow life beg
31、an on the earthThe Big Bang Big BangA solid ballAtmosphere The earthIt was full of water.Original cells.The cells in the water began to separate.waterPlants in the waterShellfish and fishPlants on landInsects and amphibiansReptiles Dinosaurs Mammals Man had evolved from apes. Nooneknowsexactlyhowthe
32、earthbegan,asithappenedsolongago.However,accordingtoawidelyacceptedtheory,theuniversebeganwitha“BigBang”thatthrewmatterinalldirections.Afterthat,atomsbegantoformandcombinetocreatestarsandotherbodies.Forseveralbillionyearsafterthe“BigBang”,theearthwasstilljustacloudofdust.Whatitwastobecomewasuncertai
33、nuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.Theearthbecamesoviolentthatitwasnotclearwhethertheshapewouldlastornot.Itexplodedloudlywithfireandrock.Theywereintimetoproducecarbon,nitrogen,watervaporandothergases,whichweretomaketheearthsatmosphere.Whatisevenmoreimportantisthat
34、astheearthcooleddown,waterbegantoappearonitssurface【背此句，注意as用法】.WaterhadalsoappearedonotherplanetslikeMarsbut,unliketheearth,ithaddisappearedlater.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.Whatmanyscientistsbelieveisthatthecontinuedpresenceofwaterallowedtheearthtodi
35、ssolveharmfulgasesandacidsintotheoceansandseas.Thisproducedachainreaction,whichmadeitpossibleforlifetodevelop.A widely accepted theory一个被广泛接受的理论（一个被广泛接受的理论（widely是何种词性是何种词性)combine.with.表示表示“把把结合起来结合起来”，没有没有combine together的说法，很明显的说法，很明显together是多余的是多余的what 在此引导一个主语从句，在此引导一个主语从句，同时同时what 又在该从句中做了又在该
36、从句中做了become的表语。它将要变成什么的表语。它将要变成什么Even more important 更重要的是，更重要的是，even 修饰比较级修饰比较级Produce a chain reaction制造一个连锁反应制造一个连锁反应Many millions of years later, the first extremely small plants began to appear on the surface of the water. They multiplied and filled the oceans and seas with oxygen, which encour
37、aged the later development of early shellfish and all sorts of fish. Next, green plants began to grow on land. They were followed in time by land animals. Some were insects. Others, called amphibians, were able to live on land as well as in water. Later when the plants grew into forests, reptiles ap
38、peared for the first time. They produced young generally (主要地)by laying eggs. After that, some huge animals, called dinosaurs, developed. They laid eggs too and existed on the earth for more than 140 million years. However, 65 million years ago the age of the dinosaurs ended. Why they suddenly disap
39、peared still remains a mystery. This disappearance made possible the rise of mammals on the earth. These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.Finally about 2.6 million years ago some small clever animals,
40、 now with hands and feet, appeared and spread all over the earth. Thus they have, in their turn, become the most important animals on the planet. But they are not looking after the earth very well. They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from t
41、he earth into space(背). As a result of this, many scientists believe the earth may become too hot to live on. So whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.Extremely small plants极小的植物极小的植物(注意注意extremely的修饰的修饰)1.fill with充满充
42、满His eyes filled with tears2. fillwith用用充满充满filled the hole with rubbish.3.be filled with 充满充满The truck was filled with woodfor the first of time第一次第一次life forms 生命形式生命形式1.as the result of由于由于原因原因2.result in导致导致结果结果3.result from因因而起而起make sth. possible.意为：使某事成为可能。这个意为：使某事成为可能。这个sth. 是一个名词性词组。是一个名词性词
43、组。由于太长，而宾补由于太长，而宾补possible太短，所以为了句子的平衡，太短，所以为了句子的平衡，将宾补提到了宾语的前面。将宾补提到了宾语的前面。 1.Whatitwastobecomewasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.2.Whatisevenmoreimportantisthatastheearthcooleddown,waterbegantoappearonitssurface3.Whatmanyscientistsbelieveisthatthecont
44、inuedpresenceofwaterallowedtheearthtodissolveharmfulgasesandacidsintotheoceansandseas.4.madeitpossibleforlifetodevelop.5.Why disappeared still remains a mystery.6.They are putting too much carbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space(背).watergreen p
45、lants on land234How life began on the earthAnalysing 5678forestsshellfish and all sorts of fishinsects (on land)amphibians (on land and in water)reptiles (on land)dinosaurs (on land)mammals (on land) small clever animals with hands and feet human small plants in water1Beforeweleft,LiYanpingexplained
46、tomethattheforceofgravitywouldchangethreetimesonourjourneyandthatthefirstchangewouldbethemostpowerful.Thenwewere off.Astherocketroseintotheair,wewerepushedbackintoourseatsbecauseweweretryingtoescapethepulloftheearthsgravity.Itwassohardthatwecouldnotsayanythingtoeachother.Graduallytheweightlessenedan
47、dIwasabletotalktohim.“whyisthespaceshipnotfallingbacktotheearth?OntheearthifIfallfromatreeIwillfalltotheground”Iasked.“wearetoofarfromtheearthnowtofeelitspull.”heexplained.“sowefeelasifthereisnogravityatall.Whenwegetclosertothemoon.Weshallfeelitsgravitypullingus.Butitwillnot be as strong a pull asth
48、eearths.”Icheered upimmediatelyandfloatedweightlesslyaroundinourspacehsipcabinwathcingtheearthbecomesmallerandthemoonlarger.Whenwegotthere,Iwantedtoexploreimmediately.“comeon.”Isiad.“ifyouareright.Myweightwillbeless thanontheearthbecausethemoonissmallerandIwillbeabletomovemorefreely.Imightevengrowta
49、llerifIstayhherelongenough.Ishallcertianlyweighless!”Ilaughedandclimbeddownthestepsfromthespaceship.ButwhenItriedtostepforward,IfoundIwascarriedtwice as far asontheearthandfellover.“Ohdear,”Icried,“walkingdoesneedabitofpracticenow thatgravityhaschanged.”AfterawhileIgot the hang ofitandwebegantoenjoy
50、ourselves.Thewaygravitychanged.HowhisweightchangedLefttheearthThegravitybecamevery_Hebecamevery_InspaceThegravity_Hehad_andcould_aroundlikeafeatherOnthemoon.Thegravitybecame._Hewasaboutone-sixthofhisweightontheearth.strongheavy.disappeared.noweightfloatverylight1.Thenwewere off动身，出发TheyareofftoBeiji
51、ng.2.Butitwillnot be as strong a pull astheearths不及，不如Hisbedroomisnotas/soneatashissisters.HedoesntearnasmuchasIdo.3.Icheered upimmediately使高兴，使振奋，感到振奋Shewassoupset.Ihadtoplaysomemusictocheerherup.Cheerup.Dontgetworriedoversuchsmallthings.4.Myweightwillbeless thanontheearth不及，不如。Englishislesshardtha
52、nmaths.Playingpianoislessinterestingthanflyingthekite.Languagepoints5.Iwascarriedtwice as far asontheearth两倍远。timesasas是。的几倍Ourclassroomisthreetimesasbigastheirs.HehasreadfourtimesasmanybooksasIhave.6.Walkingdoesneedabitofpracticenow thatgravityhaschanged.”既然Nowthateveryoneishere,letsbeginourmeeting
53、.Nowthatyouhavemadethesamemistake,youshouldbepunished.7.AfterawhileIgot the hang ofit掌握。的要领，了解。的用法，找到了绝窍。Itisnotdifficultforyoutomasteraforeignlanguageonce(一旦）yougetthehangofit.Pressthebuttonwhenthelightgoeson-willsoongetthehangofit.1.翻译句子a,Iwasluckenoughtohaveachancetomakeatripintospacewithmyfriend
54、LiYanping.b,Wewillhavetotakeachance.c.YesterdayImetmyfriendinthestreetbychance.2.选择：Howdidtheyvisitthemoon?Abytheirspaceship.Bintheirspaceship.Cbyspaceship.DbothCandB11.Whatwouldchangeontheirjourney?Howmanytimes?Atheforceofgravity,threetimes.Bthespaceship,threetimes.Ctheirweight,manytimes.Dtheirweig
55、ht,onlyonce.2.判断正误。Thefirstchangewouldbetheleastpowerful.3.Whycouldthewriternotsayanythingtoeachother?AHedidntwanttosay.BThegravitywastoohard.CTherewassomethingwrongwithhismouth.DHesattoofarfromhisfriend.2Least-most4.根据课文内容填空Thespaceshipwasnotfallingbacktotheearthbecause5.Whentheygotclosertothemoon,
56、theyshallfeelitsgravity_them.Apull.Bpulling.Cpush.Dpushing.6.whichgravityisstornger,theearthsorthemoons?theyweretoofarfromtheearthtofeelitspull.Theearthsgravity.1.翻译：IfoundIwascarriedtwiceasfarasontheearthandfeelover.我发现我被送出去很远，是在地球的是在地球的2倍远倍远，因而我摔倒了。2.Walkingdoesneedabitofpracticenowthatgravityhasc
57、hanged.既然引力改变了，那么走路就需要连续一下。3.AfterawhileIgotthehangofit,hereitrefersto_?Agravity.Btheskillofwalking.Cweight.Dforce.3B1.leavingthemoonsgravitywasnotaspainfulasleavingtheearths.itmeans:A.leavingthemoonsgravitywasmorepainfulthanleavingtheearths.B.leavingthemoonsgravitywaslesspainfulthanleavingtheearths
58、C.wedontknowexactly.2.选择：_totheearthwasvery_.Areturn,frightening.Breturning,frighted.Creturning,frighting.3.Thelittlegirlwastoo_tosayaword.Afrightened.Bfrightening.Cfrighten.4.改错：Firewasbrokeoutontheoutsideofthespaceship.Eg:Themeetingwilltakeplacenextweel.5.Itwasveryexcitingbuttheywere_.Aexhausting.
59、Bexhausted.Cexhaust.4BBCALastmonth,Iandmyfriendvisitedthemooninourspaceship.Theforceofgravityandourweightwouldchangethreetimesonourjourney.Whenwelefttheearth,thegravitybecameverystrong.Webecameveryheavy.Whenwewereinspacethegravitydisappeared.Wehadnoweightandcouldfloataroundlikeafeather,whenwewereonthemoon.Thegravitybecameverylight.Wewereaboutone-sixthofourweightontheearth.three, gravity, light, weight, float, heavy, strong. disappeared.in_Writing:Writeashortarticleexplainingoneoftheproblemsthatyoumighthaveonthemoon.Setoutwhatyoushoulddotoovercomethisdifficultyandhaveahappyvisit.
