科技英语李健版第9单元课后答案

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练习答案(Unit 9, Book 4)

Unit 9 Science and Technology1.Word Building (p 346)invention - invent available – availinnovation - innovate adaptable – adapt (to) 适应discovery - discover acceptance – acceptevolution – evolve objectivity – objective 客观的observation – observe experimentation – experimentprosperity – prosper (v.)繁荣；兴旺disastrous (adj.) – disaster (n.) 灾难的P 3471．She was admitted to hospital for observation after complaining of chest pains.2. Have you any rooms available for next weekend?3. New scientific discoveries are being made every day.4. There is now a general acceptance (n.) that the war will eventually (= in the end, finally)have to end through negotiation.5. Extensive experimentation is needed before new drugs can be used.6. Inventions such as radio and the dish washer brought communication and automation to the ordinary home,7. Research on insects suggests (= shown, indicate…)that bacteria play a vital part in animal evolution (进化；演变).8．The survivor in this life seem to be those who are adaptable to change.9 Susan’s design innovations (变革) saved the company a great deal of money.10 The reporter doubted the objectivity (客观性) of the corrupt judge.2. Filling the blanks (p 347)1. I my grandfather’s time it was quite out of ordinary for a woman to go to college.2. George Bush (Senior) preceded Bill Clinton as president of the US. 解释：precede sb. as…在某人之前任职succeed sb. as…继某人之后任职举例：Junior Bush succeeded Bill Clinton as President of the US,3. It’s six o’clock now. To be exact , it’s six ten.4. Your actions contradict (与…矛盾)your declared moral principles.5. A country’s future prosperity (繁荣)depends, to an extent, upon the quality of education of its people.6. The extraordinary experience gave birth to his (产生= result in; give rise to…) latest novel.7. After running to the bus stop, we sat down to catch our breath.8. It’s a nice house, but it wasn’t quite what we had in mind (what is desirable理想中的)9．He proposed a new method to increase the work efficiency.10/ They convert (= change) the old barn into a holiday home.11. Lisa and Mike decided to rebuild their house after the disastrous(a.灾害性的) fire.12 The fact that he’s having difficulty breathing is a negative sign.解释：1.) the fact后接that构成同位语从句，类似名词从句，通常做主语、宾语、表语等，在此翻译为：他呼吸困难这种状况不是好征兆。

科技英语阅读李健答案

科技英语阅读李健答案【篇一：科技英语阅读(李健版)翻译u3】物的适应性植物为了生存也必须像人类和动物一样适应周边的环境。

生存就意味着竞争，我们很难想象植物之间的竞争，但它往往又存在的。

首先，不同的植物之间会争夺阳光、空气、土壤和水。

其次，植物也会与那些吃它或者威胁到它生存环境的人类和动物竞争。

再次，植物所处的环境也可能也是有敌对性的或者不利于植物生长的。

怎样才能有足够的阳光、水分、空气和土壤？气温的冷热就是植物生长的主要因素吗？光对于植物来说是最基本的，尤其是对于绿色植物来说。

绿色植物在光下能制造养分——这是一种被称为光合作用的过程，而光也能影响水分蒸发的速率和花的形成。

温度也是必须考虑的因素。

对于大多数植物来说，所处的温度低于一度或者高于四十三度都将对其造成严重的损伤甚至死亡。

而温度也直接影响了种子的萌芽以及开花，当然温度也决定了它们的地理分布。

没有水植物也是无法生存的。

有些植物的生长过程需要大量的水分，因此潮湿的空气、大量的降水以及溪流湖泊和湿润的土壤对于植物都是重要的。

大多数植物需要有足够空气。

大气中所包含的一些必要的气体包括：氧气、二氧化碳、水蒸气和氮气。

空气移动所产生的风对于植物也有很大影响。

风有助于传播花粉、孢子和种子从而将它们播种在各种地方，但强风也有可能折断或者损害植物，尤其是大树。

而大风吹走了一些有养分的土壤，也会加快水分的蒸发甚至使植物缺水。

土壤对于陆生植物来说是必不可少的。

大部分植物生长在自然土壤里：其中包含着它的湿度、酸度、矿物成分、含氧量。

植物生长也会受到其他竞争生物的影响。

它必须能适应寄生菌、饥饿的鸟类、牛羊等食用叶子的动物，但植物也需要动物帮助传播花粉以及播洒种子。

有树叶和枝干的树以及灌木向我们展示了它们的适应性，这也告诉了我们植物是怎样获得最大量的光和空气的。

和那些山毛榉树、榆树、橡树、苹果树和栗子树一样，它们有一些芽最初是垂直生长的然而另一些却变成了水平生长。

为了能得到最多的阳光，一些垂直生长的枝芽会螺旋缠绕生长以至于不会遮挡到自己下边的叶子。

科技英语阅读(李健版)翻译U5

正在消失的计算机到2010年，我们将被计算机包围吗？是的，但我们却觉察不出来。

—比尔•盖茨（微软公司总裁和首席软件设计师）几年后，普通家庭娱乐系统可能与现在并没有太大的区别，但它很可能具有网络连接功能，用来下载和播放数字音乐和视频，在电视上显示艺术作品集和歌曲的名字，甚至收到重要邮件时打断正在播放的内容来提示你。

它将拥有一个中央处理器、磁盘存储器、制图硬件和某种直观的计算机用户界面。

如果再在加上一个无线鼠标和键盘，这个家庭娱乐系统看起来便很像是一台个人电脑。

人们会大量购买和使用这些系统吗？当然会。

他们会认为这种系统就是电脑吗？也许不会。

根据格特纳信息咨询公司（一家美国研究公司）的统计，世界计算机业在2002年销售了第10亿台个人电脑，而还有10亿台电脑预计在此后的6年中生产出来。

第一批的10亿台电脑几乎都是传统的台式机和笔记本电脑，但第二批的10亿台电脑将会明显不同，人们对它们进行了尽可能的完善，使它们能更好的按照人们的期望运作，例如便签大小的电脑，开会时我们可以用它来做笔记，或是躺在床上阅读电子邮件；娱乐型电脑，用来在客厅电视上播放音乐和电影；袖珍型电脑，用它无论在哪都能与他人保持联系。

除此之外，还有各种数量庞大的嵌入式计算机（如在手机、加油站和零售终端设备中使用的计算机），在功能和复杂性方面正迅速赶上台式电脑。

据估计，有意无意美国人每天会接触到大约150个嵌入式计算机系统。

这些系统使用了现在生产的90% ％的微处理器，它们将不可避免地呈现出更多个人电脑的特点，而且能够与传统PC机进行无缝对接。

这一系统将无处不在。

根据半导体工业协会的调查，在2001年，世界芯片业为地球上的每位个男士人，女士妇女和儿童生产了大约6千万个晶体管，这一数字到2010年将上升为10亿。

与此同时，今天的多功能PC机将继续在大多数人的生活中发挥重要（而且是越来越重要）的作用，但其中心地位将体现在今天大部分人不认为是“电脑”的各类智能设备中。

科技英语阅读(李健版

精心整理Unit1EnvironmentEarth’sHealthinSharpDecline,MassiveStudyFinds 大规模研究发现：地球的“健康”每况愈下ThereportcardhasarrivedfromthelargesteverscientificEha veledto dramaticenvironmentalchanges,fromdeforestationtoc hemicalpollution,thereportsays.Thealready grim situationma yworsendramaticallyduringthefirsthalfofthe21stcentury,th ereport’sauthorswarn.以上大部分的破坏都是人类在过去的半个世纪里造成的。

据报告分析，随着人类对食物、淡水、木材、纤维以及燃料等资源的需求日趋激增，环境发生了极大的变化，引发了诸如滥伐森林、化学污染等问题。

因此，该报告的作者警告说，照此下去，本已岌岌可危的生态环境将会在21世纪的上半叶进一步恶化。

andth e”UNSecretaryGeneralKofiAnnansaidinapressstatementaccompan yingthereport’srelease.“Onlybyvaluingallourpreciousnaturalandhumanresources,ca nwehopetobuildasustainablefuture.”在公布该报告的新闻发布会上，联合国秘书长科菲·安南指出：“只有了解环境及其运作过程，我们才能制定出必要的措施加以保护它。

”他还说，“只有珍惜所有宝贵的自然资源和人类资源，我们才有希望去建设一个可持续发展的未来。

”SocioeconomicImpact’s’“TheMillenniumEcosystemAssessmentgiveus,insomewaysfo rthefirsttime,aninsightintothe economicimportance ofecosys temservicesand somenewandadditionalarguments forrespecting andconservingtheEarth’slife-supportingsystems.”saidKlausToepfer,executivedirectoroftheNairobi-basedUNEn vironmentProgramme.总部位于内罗毕的联合国环境规划署执行主席克劳斯·托普弗说：“从某些方面来说，《千年生态系统评估综合报告》让我们首次认识到生态系统服务功能的经济价值，并使我们对尊重和保年“以及不可预测的区域性气候等。

科普版-英语-四年级上册-Lesson 9 Where is my dog 跟踪训练(part1)(含答案)

小学-英语-上册-打印版Lesson 9 Where is my dog?跟踪训练1．英汉互译。

(1)哪里(2)找到(3)under (4)小汽车(5)there (6)near (7)这里2．(易错题) 判断下列每组单词中画线部分的读音是(√)否(X)相同。

where near dear ( )(1) ( )(2) ( )(3)there pear earair here( )(4) ( )(5)chair there3．根据例句和提示改写下列句子。

例：This is a table．(What)What’s this?(1)The cat is on the chair．(Where)(2)Dongdong is ten．(How old)(3)She is my sister．(Who)4．读一读，选择合适的句子补全对话。

Jack：Mum，I can’t find my cap．(1)Mum：No，I can't．Jack：(2)Mum：It isn't here．Jack：Oh，look!It’s there．(3)A．Where is it? B．Under the bed．C．Can you see it?(1) (2) (3)1．(1)where (2)find (3)在……下面(4)car (5)那里，那儿(6)在……附近(7)here2．(1)√点拨：此题考查字母组合ere在单词中的发音，ere在where和there中都发／ea ／。

(2)×(3)√点拨：ear在dear和ear中都发／ɪə／。

(4)√点拨：air在air和chair中都发／eə／。

(5)×点拨：ere在here中发／ɪə／，在there中发／eə／。

3．(1)Where is the cat? (2)How old is Dongdong? (3)Who is she? 4．(1)～(3)：C A B。

科技英语阅读与翻译(李健)---unit3 Dark nergy

是什么让我们找了这么久?直到1998年，天文学家们才发现我们所说的暗能量，它几乎是宇宙能量的四分之三，在此之前一直被我们所忽视。暗能量是一种未知的能量形式，围绕在我们每个人的周围，轻轻地推拉我们，掌控宇宙的命运。但是，我们对它却几乎一无所知。确实，一些研究人员此前曾预测存在这类能量，但是他们还是会告诉你，探测暗能量是宇宙学在20世纪最具革命性的发现。暗能量可能不仅是构成宇宙的主体，而且，如果能经受住时间的检验，它将需要提出新的物理理论来支撑。
As astronomers have explored this new phenomenon, they have found that, in addition to determining the overall expansion rate of the universe, dark energy has long-term consequences for smaller scales. As you zoom in from the entire observable universe, the first thing you notice is that matter on cosmic scales is distributed in a cobweblike pattern--a filigree of filaments, several tens of millions of light-years long, interspersed with voids of similar size. Simulations show that both matter and dark energy are needed to explain the pattern.
According to models, dark matter began to clump immediately after the big bang, forming spherical blobs that astronomers refer to as "halos." The baryons, in contrast, were initially kept from clumping by their interactions with one another and with radiation. They remained in a hot, gaseous phase. As the universe expanded, this gas cooled and the baryons were able to pack themselves together. The first stars and galaxies coalesced out of this cooled gas a few hundred million years after the big bang. They did not materialize in random locations but in the centers of the dark matter halos that had already taken shape.

科技英语阅读(李健版)

Unit 1 EnvironmentEarth’s Health in Sharp Decline, Massive Study Finds大规模研究发现：地球的“健康”每况愈下The report card has arrived from the largest ever scientific Earth analysis, and many of the planet’s ecosystems are simply not making the grade.有史以来对地球进行的最大规模的科学分析结果表明，地球上的许多生态系统都达不到标准。

The UN-backed Millennium Ecosystem Assessment Synthesis Report found that nearly two-thirds of Earth’s life-supporting ecosystems, including clean water, pure air, and stable climate, are being degraded by unsustainable use.由联合国主持的《千年生态系统评估综合报告》指出，由于不可持续的使用，地球上将近三分之二的用来维持生命的生态系统（包括干净的水源、纯净的空气以及稳定的气候）正遭受破坏。

Human has caused much of this damage during the past half century. Soaring demand for food, fresh water, timber, fiber and fuel have led to dramatic environmental changes, from deforestation to chemical pollution, the report says. The already grim situation may worsen dramatically during the first half of the 21st century, the report’s authors warn.以上大部分的破坏都是人类在过去的半个世纪里造成的。

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科技英语李健版第9单元课后答案
1、Li Jing often helps me ______ my geography.（）[单选题] *
A. at
B. in
C. of
D. with(正确答案)
2、78．According to a report on Daily Mail, it’s on Wednesday（）people start feeling really unhappy. [单选题] *
A. when
B. which
C. what
D. that(正确答案)
3、—Who came to your office today, Ms. Brown?—Sally came in. She hurt ______ in P. E. class. （）[单选题] *
A. she
B. her
C. hers
D. herself(正确答案)
4、I’d like to know the _______ of the club. [单选题] *
A. schedule(正确答案)
B. school
C. menu
D. subject
5、Mum is ill. I have to _______ her at home. [单选题] *
A. look after(正确答案)
B. look for
C. look out
D. look forward to
6、Let us put the matter to the vote,（）? [单选题] *
A. will you
B. can we
C. may I
D. shall we(正确答案)
7、When you have trouble, you can _______ the police. They will help you. [单选题] *
A. turn off
B. turn to(正确答案)
C. turn on
D. turn over
8、How can I _______ the nearest supermarket? [单选题] *
A. get off
B. get up
C. get to(正确答案)
D. get on
9、Be careful with the knife. You may hurt _______. [单选题] *
A. himself
B. ourselves
C. myself
D. yourself(正确答案)
10、He was?very tired，so he stopped?_____ a rest. [单选题] *
A. to have(正确答案)
B. having
C. have
D. had
11、5 He wants to answer the ________ because it is an interesting one. [单选题] *
A．problem
B．question(正确答案)
C．door
D．plan
12、54．—________?—Yes, please. I'd like some beef. [单选题] *
A．What do you want
B．May I try it on
C．Can I help you(正确答案)
D．What else do you want
13、—I can’t always get good grades. What should I do?—The more ______ you are under, the worse grades you may get. So take it easy!（）[单选题] *
A. waste
B. interest
C. stress(正确答案)
D. fairness
14、______ visitors came to take photos of Hongyandong during the holiday. [单选题] *
A. Thousand
B. Thousand of
C. Thousands
D. Thousands of(正确答案)
15、—Is this ______ football, boy? —No, it is not ______.（）[单选题] *
A. yours; my
B. your; mine(正确答案)
C. your; me
D. yours; mine
16、A?pen _______ writing. [单选题] *
A. is used to
B. used to
C. is used for(正确答案)
D. used for
17、78．—Welcome to China. I hope you'll enjoy the ________.—Thank you. [单选题] * A．tour(正确答案)
B．size
C．name
D．colour
18、—Would you like some milk?—Yes, just _____, please. [单选题] *
A. a little(正确答案)
B. little
C. a few
D. few
19、You can't see many _____ in a hospital. [单选题] *
A. man nurse
B. men nurses(正确答案)
C. men nurse
D. man nurses
20、The story has _______ a lot of students in our class. [单选题] *
A. attracted(正确答案)
B. attacked
C. appeared
D. argued
21、She _______ so much _______ her mother. [单选题] *
A. looks; like(正确答案)
B. looks; for
C. looks; after
D. looks forwards; to
22、--All of you have passed the test!--_______ pleasant news you have told us! [单选题] *
A. How
B. How a
C. What(正确答案)
D. What a
23、1——May I help you? You seem to be having some problems.——_______ , thanks. Ithink I can manage. [单选题] *
A. All right
B. No problem
C. It’s all right(正确答案)
D. There’s no way
24、There is not much news in today's paper,_____? [单选题] *
A. is it
B. isn't it
C.isn't there
D. is there(正确答案)
25、Many people believe that _________one has, _______ one is, but actually it is not true. [单选题] *
A. the more money ; the happier(正确答案)
B. the more money ; the more happy
C. the less money ; the happier
D. the less money ; the more happy
26、He was very excited to read the news _____ Mo Yan had won the Nobel Prize for literature [单选题] *
A. which
B. what
C. how
D. that(正确答案)
27、I could ______ control my feelings and cried loudly when I heard the bad news. [单选题] *
A. hardly(正确答案)
B. ?really
C. clearly
D. nearly
28、The early Americans wanted the King to respect their rights. [单选题] *
A. 统治
B. 满足
C. 尊重(正确答案)
D. 知道
29、29．There is a book in your left hand. What’s in your ___________ hand? [单选题] * A．the others
B．other (正确答案)
C．another
D．others
30、Is there going to ______ a football match in the stadium next month?（）[单选题] *
A. being
B. have
C. be(正确答案)
D. having。