人教版高中英語必修3unit4課件育英科技王衡英語

1、unit 4unit 4 astronomy: astronomy: the science of the starsthe science of the starsastronomy (n)天文學(xué)天文學(xué)astronomer天文學(xué)家天文學(xué)家solar (a)太陽的太陽的,日光的日光的solar energy太陽能太陽能sun-sunny太陽太陽晴朗的晴朗的system (n)系統(tǒng)，體系系統(tǒng)，體系solar system太陽系太陽系religion (n)宗教宗教religious (a)宗教的宗教的theory (n)學(xué)說；理論學(xué)說；理論big bang 宇宙大爆炸宇宙大爆炸atom (n)原

2、子原子atomic bombnuclear weapon原子彈原子彈-核武器核武器billion (n, pron, a)十億；萬億十億；萬億(英英)violent (a)-fierce強(qiáng)烈的強(qiáng)烈的,暴力暴力激烈的激烈的,猛烈的猛烈的globe (n)球體球體;地球儀地球儀;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;塵世塵世in time on time及時(shí)；終于及時(shí)；終于-按時(shí)按時(shí)in no time at times at a timefrom time to time立刻立刻,馬上馬上-偶爾偶爾-每每次、依次次、依次-時(shí)不時(shí)時(shí)不時(shí)ca

3、rbon (n)碳碳nitrogen (n)氮氮vapor (n)蒸汽；水蒸氣蒸汽；水蒸氣atmosphere (n)大氣層大氣層;氣氛氣氛,環(huán)境環(huán)境unlike (prep)不同；不像不同；不像fundamental (n)基本的，基礎(chǔ)的基本的，基礎(chǔ)的fundamental-primary-elementary-basic最基礎(chǔ)的最基礎(chǔ)的-排序基礎(chǔ)排序基礎(chǔ)-初初級(jí)級(jí)-基本的，必要的基本的，必要的presence出席；到場(chǎng)；存在出席；到場(chǎng)；存在present (v;a;n)absent (a)提供提供;贈(zèng)與贈(zèng)與;當(dāng)前的當(dāng)前的;禮物禮物缺席的缺席的dissolve (v)溶解；解散溶解；解散ha

4、rmful (a)有害的有害的be harmful to sb be bad for sb對(duì)對(duì)有害有害acid (n)酸酸chain (n)鏈子鏈子;連鎖連鎖;鎖鏈鎖鏈chain/multiply store連鎖店連鎖店reaction (n)反應(yīng)；回應(yīng)反應(yīng)；回應(yīng)react to sthreact on對(duì)對(duì).做出反應(yīng)做出反應(yīng);對(duì)對(duì)起作用起作用multiply (v)乘；增加乘；增加plus-minus-multiply-divide加減乘除加減乘除multiply2 by4 is divide 8 by 4 is 22*4=8;8除除4=2oxygen (n)氧氧shellfish (n)水生

5、有殼動(dòng)物水生有殼動(dòng)物amphibian (n)球體球體;地球儀地球儀;地球地球reptile (n)爬行動(dòng)物爬行動(dòng)物lay egg下蛋下蛋;(放置放置;擱下擱下)dinosaur (n)恐龍恐龍exist (vi)生存生存exist in-exist on存在存在.之中之中-靠靠為生為生existence (n) (in)生存生存 (現(xiàn)存現(xiàn)存)mammal (n)哺乳動(dòng)物哺乳動(dòng)物give birth to產(chǎn)生、分娩產(chǎn)生、分娩thus (ad)-so因此；于是因此；于是in ones turn輪到某人；接著輪到某人；接著dioxide (n)二氧化物二氧化物carbon dioxide 二氧化碳

6、二氧化碳preventfrom阻止阻止不要不要puzzle (v; n)迷；難題；迷；難題；(使使)迷惑迷惑 puzzle out琢磨透琢磨透biology (v)生物學(xué)生物學(xué)biologist (n)生物學(xué)家生物學(xué)家gravity (n)萬有引力萬有引力,重力重力satellite (n)衛(wèi)星衛(wèi)星;人造衛(wèi)星人造衛(wèi)星gentle (a)溫和；文雅溫和；文雅gentleman紳士紳士geologist (n)地質(zhì)學(xué)家地質(zhì)學(xué)家physicist (n)物理學(xué)家物理學(xué)家block out擋住擋住(光線光線)block offblock in (ad)關(guān)閉，封閉關(guān)閉，封閉使使受阻受阻extinct (

7、a)絕種的絕種的;滅絕的滅絕的climate (n)氣候氣候temperature-weather氣溫氣溫-天氣天氣comet (n)彗星彗星crash (v)-cash碰撞碰撞;墜落墜落-現(xiàn)金現(xiàn)金spaceship (n)宇宙飛船宇宙飛船pull (n, vt)拉力拉力;拖拖;拔拔;牽引力牽引力lesson (v)減少；減輕減少；減輕cheer up歡呼，感到振奮歡呼，感到振奮cheer sb on給某人加油給某人加油float (vi; vt;n)浮動(dòng)；漂??；漂浮物浮動(dòng)；漂??；漂浮物floatsink 漂浮漂浮沉沉weightlessly (ad)失重地失重地weight (n, vt)重

8、量；體重；重任；重量；體重；重任；給給負(fù)重負(fù)重cabin (n)小屋，船艙小屋，船艙mass (n; a)質(zhì)量質(zhì)量;團(tuán)塊團(tuán)塊;大量大量;群眾群眾的；大規(guī)模的的；大規(guī)模的a mass of一大團(tuán)；一大團(tuán)；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突發(fā)，爆發(fā)突發(fā)，爆發(fā)break away from脫離；放棄脫離；放棄(習(xí)慣習(xí)慣)break down毀壞；制服；坍塌毀壞；制服；坍塌break into破門而入；突然破門而入；突然起來起來exhaust (vt)用盡；使精疲力竭用盡；使精疲力竭sb be ex

9、hausted 某人精疲力竭某人精疲力竭begin with以以為起點(diǎn)為起點(diǎn)explode with突然爆發(fā)突然爆發(fā)as well as也也.explode with anger勃然大怒勃然大怒depend on sb/ sth依靠某人；取決于某事依靠某人；取決于某事watch out密切注視；當(dāng)心；提防密切注視；當(dāng)心；提防 1.in time: sooner or later; eventually 遲早遲早;最終最終 我我遲早遲早會(huì)遇見他會(huì)遇見他. ill see him in time. in time (for sth. /to do sth.): not late 及時(shí)；不遲及時(shí)；不

10、遲 她會(huì)及時(shí)回來準(zhǔn)備晚餐她會(huì)及時(shí)回來準(zhǔn)備晚餐. she will be back in time to prepare dinner. 你認(rèn)為我們能及時(shí)趕上火車嗎你認(rèn)為我們能及時(shí)趕上火車嗎?do you think we can get there_ the train?in time forexercise: 與與time相關(guān)的短語相關(guān)的短語: on time 按時(shí)按時(shí);準(zhǔn)時(shí)準(zhǔn)時(shí) in no time 立刻立刻,馬上馬上 at times 有時(shí)有時(shí) at a time 每次每次;依次依次 once upon a time 從前從前 at one time 從前從前 for the time

11、being 暫時(shí)暫時(shí) from time to time 不時(shí)地不時(shí)地 1) allow 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 對(duì)對(duì)有害有害過多的二氧化碳對(duì)環(huán)境有害過多的二氧化碳對(duì)環(huán)境有害. too much carbon dioxide is harmful to / does harm to the environment.2. what many scientists believe i

12、s that the continued presence of water allowed 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 連鎖反應(yīng)連鎖反應(yīng)2) make it possible for life to develop. 使生命的發(fā)展成為可能使生命的發(fā)展成為可能 make it + adj./n.

13、 sb. /sth. to do sth. 老師讓他們跟容易地明白那個(gè)問題老師讓他們跟容易地明白那個(gè)問題. 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. 另外一些叫作兩另外一些叫作兩棲動(dòng)物棲動(dòng)物,它們既能在陸地上生活也能在水里生存它們既能在陸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 learn

14、ing french as well as english. 我學(xué)英語之外還學(xué)法語我學(xué)英語之外還學(xué)法語.he grows flowers as well as vegetables. 他既種菜也種花他既種菜也種花he as well as i _ rock music. . “就遠(yuǎn)原則就遠(yuǎn)原則”likes5. they produced young generally by laying eggs. its generally believed that一般認(rèn)為一般認(rèn)為 generally speaking 一般而言，概括來說一般而言，概括來說 1) its generally believe

15、d that girls work harder than boys do. 2) generally 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.我們的功課自上高中以來增多了我們的功課自上高中以來增多了.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 r

16、apidly in summer. 6. they multiplied and filled 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 存在與存在與之中；之中；exist on 靠靠為生為生it was impossible for them to _such a small income. the un

17、iverse _space. exist onexists in in existence 現(xiàn)存的現(xiàn)存的 come into existence=come into being 開始存在、成立開始存在、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)

18、 生（孩子）生（孩子） shes just given birth to a healthy baby girl. 她剛剛生了個(gè)健康的女嬰。她剛剛生了個(gè)健康的女嬰。 2) 產(chǎn)生產(chǎn)生 the extraordinary experience gave birth to his latest novel. 這段奇特的經(jīng)歷促成了他的最新的一部小說的誕生。這段奇特的經(jīng)歷促成了他的最新的一部小說的誕生。9.thus they have, in their turn, become the most important animals on the planets on the planet.1) thu

19、s adv. 因此；從而因此；從而 she studied hard, _ .thus she got high markshe forgot to turn on the radio and _. thus missed the program 2) in ones turn 輪到某人輪到某人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

20、 the earth into space. 阻止某人做某事阻止某人做某事 :prevent sb. (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,但如在被動(dòng)語態(tài)中但如在被動(dòng)語態(tài)中,他們中的他們中的from都不可省。

21、都不可省。11.whether life will continue on the earth for millions of years to come will depend on whether this problem can be solved.depend on : 依賴，依靠依賴，依靠it /that all depends那得看情況而定那得看情況而定我們都靠你來做決定了我們都靠你來做決定了well all _to make a decision.明天是否能開校運(yùn)會(huì)取決與天氣明天是否能開校運(yùn)會(huì)取決與天氣whether to hold the sports meeting or n

22、ot will _.depend on youdepends on the weatherdepend on sb. 依靠依靠,相信某人相信某人depend on sth. 取決與某物取決與某物12、fundamental, primary, elementary basic f：原則上的，最基礎(chǔ)的，也可以理解為最根本的，像憲法的地位就可以算作fundamentalp：主要的，初級(jí)的，首要的，強(qiáng)調(diào)一個(gè)先后順序e：基礎(chǔ)的，這里的主要意向是簡(jiǎn)單的，初級(jí)的，如果小學(xué)教育就是elementaryb：基本的，必要的 13 react onreact to react on起作用于；對(duì)有影響；對(duì)產(chǎn)生影響例

23、：the rise of the charges for water and electricity will react on living expenses.水電費(fèi)的提高將對(duì)生活費(fèi)用產(chǎn)生影響。react to作出反應(yīng)；起反應(yīng)例：he reacted well to penicillin.他對(duì)青霉素的反應(yīng)良好。14. thus thus的基本意思是“如此,這樣,以此方式”。 hold the wheel in both hands, thus. 用雙手握住方向盤 the text runs thus. 原文如此 thus也可作“其結(jié)果是,因此,于是”解。 he didnt work hard

24、. thus he was fired. 他工作不努力,因此被解雇。 15、crash crash的基本意思是“撞碎,墜毀”,表示猛跌或猛撞并發(fā)出突然猛烈而又宏大的聲音，引申可表示商業(yè)或金融機(jī)構(gòu)突然破產(chǎn)或垮掉”。 crash后常接介詞tointo表示“撞毀”,接down表示“摔下”,接out表示“沖出”等 he crashed his car into a wall.他的汽車撞到了墻上。 the rocks crashed down onto the car.巖石轟隆一聲砸在汽車上。 isaac newton,牛頓牛頓 16421727 universal gravitation 萬有引力萬有

25、引力einstein, albert (1879-1955) 愛因斯坦愛因斯坦relativity（相對(duì)論）相對(duì)論） and the cosmos （宇宙）宇宙） the theory about black holes （黑洞理論）黑洞理論）solar system水星水星最接近太陽，是太陽系中第二小行星。水星的英文名字最接近太陽，是太陽系中第二小行星。水星的英文名字mercurymercury來自羅馬神墨丘利。墨丘利也就是希臘神話中的來自羅馬神墨丘利。墨丘利也就是希臘神話中的hermeshermes?；蛟S由于水星在空中移動(dòng)得快，才使它得到這個(gè)名字?；蛟S由于水星在空中移動(dòng)得快，才使它得到這個(gè)

26、名字。 金星金星是離太陽第二近，太陽系中第六大行星。古希臘人稱之為是離太陽第二近，太陽系中第六大行星。古希臘人稱之為aphrodite(aphrodite(阿芙羅狄蒂阿芙羅狄蒂) )，是希臘神話中愛與美的女神。而在，是希臘神話中愛與美的女神。而在羅馬神話中愛與美的女神是維納斯羅馬神話中愛與美的女神是維納斯venus venus ，因此金星也稱做，因此金星也稱做“維納斯維納斯”。 地球地球是距太陽第三顆，它是太陽系類地行星中最大的一顆，也是距太陽第三顆，它是太陽系類地行星中最大的一顆，也是太陽系第五大行星，行星年齡估計(jì)大約有是太陽系第五大行星，行星年齡估計(jì)大約有4545億年億年(4.5(4.51

27、09)109)。地球是唯一一個(gè)不是從希臘或羅馬神中得到的名字。地球是唯一一個(gè)不是從希臘或羅馬神中得到的名字。earthearth一一詞來自于古英語及日耳曼語。這里當(dāng)然有許多其他語言的命名。詞來自于古英語及日耳曼語。這里當(dāng)然有許多其他語言的命名。在羅馬神話中，地球女神叫在羅馬神話中，地球女神叫tellustellus肥沃的土地。肥沃的土地。 火星火星為距太陽第四遠(yuǎn)，也是太陽系中第七大行星。因?yàn)榛鹦窃跒榫嗵柕谒倪h(yuǎn)，也是太陽系中第七大行星。因?yàn)榛鹦窃谝箍罩锌雌饋硎茄t色的，所以在西方，以羅馬神話中的戰(zhàn)神夜空中看起來是血紅色的，所以在西方，以羅馬神話中的戰(zhàn)神marsmars命名它。命名它。 木星木星

28、是離太陽第五顆行星，而且是最大的一顆。木星是是離太陽第五顆行星，而且是最大的一顆。木星是天空中第四亮的物體。木星是自轉(zhuǎn)最快的行星。在西方天空中第四亮的物體。木星是自轉(zhuǎn)最快的行星。在西方稱它為朱庇特稱它為朱庇特jupiterjupiter，是羅馬神話中的眾神之王，是羅馬神話中的眾神之王，相當(dāng)于希臘神話中的宙斯（相當(dāng)于希臘神話中的宙斯（zeuszeus）。）。 土星土星是離太陽第六遠(yuǎn)的行星。是太陽系中僅次于木星的是離太陽第六遠(yuǎn)的行星。是太陽系中僅次于木星的第二大行星。中國古代稱之為鎮(zhèn)星或填星。土星的英文第二大行星。中國古代稱之為鎮(zhèn)星或填星。土星的英文名字名字saturnsaturn（以及其他絕大部

29、分歐洲語言中的土星名稱）（以及其他絕大部分歐洲語言中的土星名稱）是以羅馬神的農(nóng)神薩杜恩命名的。希臘神話中的農(nóng)神是以羅馬神的農(nóng)神薩杜恩命名的。希臘神話中的農(nóng)神cronuscronus是是uranusuranus（天王星）和該亞的兒子，也是宙斯的（天王星）和該亞的兒子，也是宙斯的父親。父親。 天王星天王星是太陽系中離太陽第七遠(yuǎn)行星，顏色為灰藍(lán)是太陽系中離太陽第七遠(yuǎn)行星，顏色為灰藍(lán)色，是一顆巨型氣體行星色，是一顆巨型氣體行星(gas giant)(gas giant)。以直徑計(jì)。以直徑計(jì)算，天王星是太陽系第三大行星；天王星的命名，算，天王星是太陽系第三大行星；天王星的命名，是取自希臘神話的天神烏拉諾

30、斯是取自希臘神話的天神烏拉諾斯 uranus uranus。烏拉。烏拉諾斯是古希臘神話中的宇宙之神，是最早的至高無諾斯是古希臘神話中的宇宙之神，是最早的至高無上的神。他是該亞的兒子兼配偶，是上的神。他是該亞的兒子兼配偶，是cronuscronus（農(nóng)神（農(nóng)神土星）、獨(dú)眼巨人和泰坦（奧林匹斯山神的前輩）土星）、獨(dú)眼巨人和泰坦（奧林匹斯山神的前輩）的父親。的父親。 海王星海王星為太陽系九大行星中的第八個(gè)，是一個(gè)巨行為太陽系九大行星中的第八個(gè)，是一個(gè)巨行星。海王星。目前海王星是太陽系內(nèi)離太陽第二遠(yuǎn)星。海王星。目前海王星是太陽系內(nèi)離太陽第二遠(yuǎn)的行星。海王星的名字是羅馬神話中的海神涅普頓的行星。海王星的

31、名字是羅馬神話中的海神涅普頓（neptuneneptune）。古希臘神話中海神叫波塞冬）。古希臘神話中海神叫波塞冬 (poseidon)(poseidon)。 man had evolved from apes. earthhow life began on the earth 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 fishp

32、lants on landinsects and amphibiansreptiles dinosaurs mammals man had evolved from apes. no one knows exactly how the earth began, as it happened so long ago. however, according to a widely accepted theory, the universe began with a “big bang” that threw matter in all directions. after that, atoms b

33、egan to form and combine to create stars and other bodies. for several billion years after the “big bang”, the earth was still just a cloud of dust. what it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. the earth became so violent t

34、hat it was not clear whether the shape would last or not. it exploded loudly with fire and rock. they were in time to produce carbon, nitrogen, water vapor and other gases, which were to make the earths atmosphere. what is even more important is that as the earth cooled down, water began to appear o

35、n its surface【背此句，注意as用法】. water had also appeared on other planets like mars but, unlike the earth, it had disappeared later. it was not immediately obvious that water was to be fundamental to the development of life. what many scientists believe is that the continued presence of water allowed the

36、earth to dissolve harmful gases and acids into the oceans and seas. this produced a chain reaction, which made it possible for life to develop.a widely accepted theory一個(gè)被廣泛接受的理論（一個(gè)被廣泛接受的理論（widely是何種詞性是何種詞性)combine.with.表示表示“把把結(jié)合起來結(jié)合起來”，沒有沒有combine together的說法，很明顯的說法，很明顯together是多余的是多余的 what 在此引導(dǎo)一個(gè)主語

37、從句，在此引導(dǎo)一個(gè)主語從句，同時(shí)同時(shí)what 又在該從句中做了又在該從句中做了become的表語。它將要變成什么的表語。它將要變成什么even more important 更重要的是，更重要的是，even 修飾比較級(jí)修飾比較級(jí) produce a chain reaction制造一個(gè)連鎖反應(yīng)制造一個(gè)連鎖反應(yīng) many millions of years later, the first extremely small plants began to appear on the surface of the water. they multiplied and filled the ocean

38、s and seas with oxygen, which encouraged 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 p

39、lants grew into forests, reptiles appeared 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 dino

40、saurs ended. why they suddenly disappeared 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

41、 years ago some small clever animals, 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, whi

42、ch prevents heat from escaping from the 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極小的植物極小的

43、植物(注意注意extremely的修飾的修飾) 1.fill with充滿充滿his eyes filled with tears 2. fillwith用用充滿充滿filled the hole with rubbish.3.be filled with 充滿充滿the truck was filled with wood for 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導(dǎo)致導(dǎo)致結(jié)果結(jié)果3.result from因因而起而起make sth. possible.意為：使某事成

44、為可能。這個(gè)意為：使某事成為可能。這個(gè)sth. 是一個(gè)名詞性詞組。是一個(gè)名詞性詞組。由于太長(zhǎng)，而賓補(bǔ)由于太長(zhǎng)，而賓補(bǔ)possible太短，所以為了句子的平衡，太短，所以為了句子的平衡，將賓補(bǔ)提到了賓語的前面。將賓補(bǔ)提到了賓語的前面。 1.what it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.2.what is even more important is that as the earth cooled do

45、wn, water began to appear on its surface3.what many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and seas.4.made it possible for life to develop.5.why disappeared still remains a mystery.6.they are putting too much c

46、arbon dioxide into the atmosphere, which prevents heat from escaping from the earth into space(背).watergreen plants 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

47、(on land) small clever animals with hands and feet human small plants in water1 before we left, li yanping explained to me that the force of gravity would change three times on our journey and that the first change would be the most powerful. then we were off. as the rocket rose into the air, we wer

48、e pushed back into our seats because we were trying to escape the pull of the earths gravity. it was so hard that we could not say anything to each other. gradually the weight lessened and i was able to talk to him. “ why is the spaceship not falling back to the earth? on the earth if i fall from a

49、tree i will fall to the ground ” i asked. “ we are too far from the earth now to feel its pull. ”he explained. “ so we feel as if there is no gravity at all. when we get closer to the moon. we shall feel its gravity pulling us. but it will not be as strong a pull as the earths.” i cheered up immedia

50、tely and floated weightlessly around in our spacehsip cabin wathcing the earth become smaller and the moon larger. when we got there, i wanted to explore immediately. “ come on. ” i siad. “ if you are right. my weight will be less than on the earth because the moon is smaller and i will be able to m

51、ove more freely. i might even grow taller if i stay hhere long enough. i shall certianly weigh less!” i laughed and climbed down the steps from the spaceship. but when i tried to step forward, i found i was carried twice as far as on the earth and fell over. “ oh dear, ” i cried, “ walking does need

52、 a bit of practice now that gravity has changed.” after a while i got the hang of it and we began to enjoy ourselves.the way gravity changed. how his weight changedleft the earththe gravity became very _he became very_in spacethe gravity _he had _ and could _around like a featheron the moon.the grav

53、ity became._he was about one-sixth of his weight on the earth. strongheavy.disappeared.no weightfloatvery light1.then we were off動(dòng)身，出發(fā)they are off to beijing.2.but it will not be as strong a pull as the earths不及，不如his bedroom is not as/so neat as his sisters.he doesnt earn as much as i do.3.i cheere

54、d up immediately使高興，使振奮，感到振奮she was so upset. i had to play some music to cheer her up. cheer up. dont get worried over such small things. 4.my weight will be less than on the earth不及，不如。english is less hard than maths.playing piano is less interesting than flying the kite.language points5.i was car

55、ried twice as far as on the earth兩倍遠(yuǎn)。times as as是。的幾倍our classroom is three times as big as theirs.he has read four times as many books as i have.6.walking does need a bit of practice now that gravity has changed.”既然now that everyone is here,lets begin our meeting. now that you have made the same mi

56、stake, you should be punished.7.after a while i got the hang of it掌握。的要領(lǐng)，了解。的用法，找到了絕竅。it is not difficult for you to master a foreign language once(一旦） you get the hang of it.press the button when the light goes on-will soon get the hang of it. 1.翻譯句子 a, i was luck enough to have a chance to make a

57、trip into space with my friend li yanping. b,we will have to take a chance. c. yesterday i met my friend in the street by chance. 2.選擇：how did they visit the moon? a by their spaceship. b in their spaceship. c by spaceship. d both c and b 1 1.what would change on their journey? how many times? a the

58、 force of gravity, three times. b the spaceship , three times. c their weight , many times. d their weight, only once. 2.判斷正誤。 the first change would be the least powerful. 3.why could the writer not say anything to each other? a he didnt want to say. b the gravity was too hard. c there was something wrong with his mouth. d he sat too