21世纪大学英语4(第三版)听力原文及答案解析
第一单元
美国军方资助的弹药和使用缩写的IRAM NE报告称它们是飞航路边炸弹，所有的IRAM都可以装在一个敞开的背包后面，并通过遥控器发射，这是一个自制的多发火箭系统。这是非常危险的。”那是Michael Oates少将。美军和联军在伊拉克中部、巴格达南部的指挥官。S。官员们指控伊朗特工提供装备和训练高功率路旁炸弹，杀死了几名U。S。伊朗政府否认这一指控已向几个美国小基地发射，造成3人死亡。S。部队和伤人15，但最致命的伊拉姆事件涉及六月初流产，其中几枚炸弹过早爆炸，杀死16名伊拉克平民和两名袭击者。
波士顿大学和阿萨诸塞州综合医院的一组研究人员正在共同努力，使血糖自动控制成为现实。这一切都始于一位父亲，他的儿子是糖尿病患者，这个特别的父亲，达米亚诺也恰巧是一名生物医学工程师，而G。艾夫斯让他尝试解决儿子面临的挑战。他的儿子胰脏不能正常工作，所以他没有将胰岛素或胰高血糖素释放到他的系统中来控制血糖。达米亚诺和他的团队提出了一种系统，该系统使用双胰岛素/胰高血糖素泵，并与一个恒定的血糖监测植入物相连，该植入物与A智能手机可以使糖尿病患者与这种仿生胰腺几乎完全正常的生活。这一切都始于一位父亲说：“如果。？
Dan Wright是树顶建筑商的创始人，自2003创办公司以来，他已经建造了400多座树屋。怀特公司开着自己的树屋工作室，Bala Sundar和他的妻子Lakshmi为自己建造了一个树屋，“我们想在一个僻静的地方建造一些东西，我们可以来这里放松一下。比起我的孩子，更多的是我想要的空间。有床、桌子和窗户，是一个舒适舒适的地方度过一个夏天的夜晚。60岁的鲍伯奇迹想要为他的孙子建造一个。Sandy Kiefer是大提琴教官。她的梦想是建造三座树屋并用它们来做早餐。安装特殊的树形螺栓是工作中最重要的部分。随着树的生长，
有时你需要移动部分结构或者把它的一部分剪下来，让树屋每年生长。然后在树梢上升起底座。它很快就会成为一座大树屋的基础，所以孩子们或大人都可以在树顶上玩耍。
M:你看了昨晚电视节目《关于藤壶的粘合特性》吗？
W:不，我错过了。你对他们有什么了解？
M：它们在出生后不久就粘在海洋中的岩石上。他们也呆在同一个地方。你曾经试过去掉其中的一件东西吗？把岩石炸开比把藤壶关起来容易些。
男：没错！这就是为什么科学家们试图弄清藤壶的胶水是什么，它被认为是自然界中最强的粘合剂之一。
W:它的优点是能够在潮湿的表面上工作。
M：正是如此。因为它是一种天然蛋白质，它可能不会对像现在使用的许多合成胶黏剂一样有害的人：想想医生和牙医可以用这种方法修补骨头，固定假牙M：有无数的用途。科学家希望能很快了解胶水是什么制成的，这样人们就可以利用它。
男士：对不起。你等了很久了吗？W:大约十分钟：你注意到了否。7路公交车经过了吗？W:不是我站在这里的时候。我在等待“不”。7我自己：好。炎热的一天，不是吗？W：是的，是的。我希望天会下雨和凉爽：我也是。这在三月是不寻常的。我不记得我在3月以前是如此炎热和干燥，在W之前：你来自佛罗里达州，然后M:不是。我出生在纽约，但我在这里已经住了十年了。W:我和妈妈刚从印第安娜搬到这里。M:印第安娜很冷，不是吗？W：是的。这就是我们搬家的原因。但我们不知道佛罗里达州会这么热。我们本应该去加利福尼亚的。你认为我们错过了公共汽车吗？M:不，总是有点晚W：我有二十比一，但是我的表有点快：不要担心它不会在半小时内准确地出现。男士：对不起。你等了很久了吗？W:大约十分钟：你注意到了否。7路公交车经过了吗？W:不是我站在这里的时候。我在等待“不”。7我自己：好。炎热的一天，不是吗？W：是的，是的。我希望天会下雨和凉爽：我也是。这在三月是不寻常的。我不记得我在3月以前是如此炎热和干燥，在W之前：你来自佛罗里达州，然后M:不是。我出生在纽约，但我在这里已经住了十年了。W:我和妈妈刚从印第安娜搬到这里。M:印第安娜很冷，不是吗？W：是的。这就是我们搬家的原因。但我们不知道佛罗里达州会这么热。我们本应该去加利福尼亚的。你认为我们错过了公共汽车吗？M:不，总是有点晚W：我有二十比一，但是我的表有点快：不要担心它不会在半小时内准确地出现。
随着价格和建筑成本的不断上升，“自食其力”（DIY）趋势持续增长，我们需要为我们的客厅准备家具，“约翰·罗斯说，”我们只是没有足够的GH钱购买它。所以我们决定试着做几张桌椅。约翰六个月前结婚了，现在和许多年轻人一样，他们正努力在生活费用很高的时候回家。Rosses在一所夜校上了280美元的为期两周的课程。现在他们把所有的家具都修好了，修理房子周围的Jim Hatfield有三个男孩，他的妻子死了。他在家里有一份全职工作，还有一家制鞋厂。上个月，他收到了S420的一张汽车修理单，“我对此很苦恼。现在我已经完成了一个汽车修理课程，我应该能自己修车。约翰和吉姆并不是不寻常的人。美国的大
多数家庭都在尽其所能来省钱，这样他们就可以与高昂的生活费用抗争。如果你想成为一个“自己动手”的人，你可以去上DIY课程。对于那些没有时间参加课程的人来说，有一些书告诉你，你可以自己做事情。
我们中的一些人花了高中的时间去解剖青蛙，在偶尔的舞蹈中感到尴尬，但是西班牙的一小部分学生在教育时间方面做得更酷了：他们把数码相机送到了太空，一个老师和四个来自Catal莱斯拉比巴斯学校的学生。西班牙航空公司购买了一个价值60美元的气球，并安装了一个80美元的数码相机，然后把它送上天空，拍摄一些高空照片。这个小组只想看看他们是否能让他们自制的气象气球飞到大多数商用飞机飞行的高度。但是到了30000英尺，气球一直爬升到离地球20英里远的地方，在太空的边缘。利用气象传感器和谷歌地球追踪气球的进展，团队追踪了大气状况，并捕捉了一些令人惊奇的照片。四名学生和他们的老师在2009年2月完成了实验。该小组自己建造了电子传感器部件，然后将它们连同摄像机一起放进一个保护性的外壳中，然后将钻机释放到天空中，气球上升到100英尺以上的高度，然后掉落地面。该团队飞行超过10公里寻找气球和设备。他们惊奇地发现，尽管暴露在极端恶劣的环境中，设备仍在发出信号。
尽管存在争议，直接面向消费者的基因检测正变得越来越流行。这种基因测试更像是自己动手做的诊断。它变得几乎一样容易作为一个家庭怀孕测试。人们可以使用他们的信用卡在网上订购一套工具，用刷子去除一些脸颊细胞，返回工具并通过电子邮件接收报告。DTC测试成本从几百美元到几千美元，可用于从乳腺到癌症的超过800个条件。尽管存在争议，直接面向消费者的基因检测正变得越来越流行。这种基因测试更像是自己动手做的诊断。它变得几乎一样容易作为一个家庭怀孕测试。人们可以使用他们的信用卡在网上订购一套工具，用刷子去除一些脸颊细胞，返回工具并通过电子邮件接收报告。DTC 测试成本从几百美元到几千美元，可用于从乳腺到癌症的超过800个条件。
U。S。人口可能是特别准备DTC测试，因为它有一个自己动手的伦理，习惯于支付口袋里的医疗服务。提供基因测试的公司热衷于广泛的DTC测试的前景。他们认为基因测试与非DNA测试没有什么不同。但并不是每个人都为消费者能够接受基因测试而感到兴奋。有些人担心DTC基因检测对公众构成危险。患者可能会经历心理伤害，因为他们可能不理解结果意味着什么，那么在互联网上缺乏监管也可能导致这样一个事实，即网络给你的信息可能是非常误导和潜在的危害你。然而，只要医生能帮助他们，许多人对缺乏监管感到满意。那么DTC基因测试的未来是什么呢？我们不能指望在未来几年里对基因疾病进行广泛的自我筛查。但我们可以预测某些疾病的DTC基因检测的增长，并完全期待这种技术将与我们同在。四百四十四
答案
1-2：A C
3-4: B C
5-7: A B D
8-11:D B D D 12-15:C C A C 16-18:B B A
19-22:A D C B 23-25:A D B
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, thanks. , I do. . I'd rather not. idea. 答案：B 二、阅读理解 Peter arrived home and discovered that he had forgotten his door key. He rang the bell, but nobody came to open the door. He rang again, and waited, but still there was no answer. He walked around the house to see if he could find an open window. But they were all closed. It was beginning to rain and he did not know what to do. Dorothy, his wife, had obviously gone out, and he did not know where she had gone, or when she would return. He waited for half an hour. Still nobody came. Finally feeling wet and angry, he picked up a big stone and threw it through the kitchen window and was climbing through it. When he heard the front door open, his wife came back. could not open the door with his key one day. 答案：B was raining that day. 答案：A threw a big stone through a window to get into his house. 答案：A wife came back when he was walking around the house.
21世纪大学英语读写教程(第三册)
21世纪大学英语读写教程（第三册） Vocabulary III Unit 1 1.Do you think that making music and art compulsory subjects in schools would reduce some children?s enjoyment of them ? 2.Bob’s one of those people who relish risk and danger—he’d be bored in a safe , steady job. 3.Elizabeth is certainly enough to succeed in her career ; she just doesn’t have enough confidence in her own abilities. 4.I’m sorry you’re in trouble , but as you made your decision on your own you’ll just have to face the consequences. 5.Many educators would be delighted to abolish exams , but they also worry that with them there would be too little incentive for students to work hard. 6.The teacher accidentally hit the boy’s hand with an eraser and was henceforth known as “Dead-Eye Bean”. 7.If I had money , I’d invest it all in Internet companies. 8.Psychologists say that our behavior is influenced by many factors too subtle for us to consciously perceive. 9.He’s always had a passion for books. If he could work in library, it would be a dream come true. 10.Look at those three whispering in the corner again ----they’re scheming something , I just don’t know what! Unit2 1. In a healthy relationship, the partner? strengths and abilities complement each other, rather than being identical. 2. Millions of dollars and lots of famous actors not indispensable to the production of a successful film , but they help! 3. I never felt I had a right to expect any special privileges because of my university education. 4. The marking strategy that Edward proposed would be brilliant if only he hadn?t forgotten about good business ethics. 5. It?s true that not having a car imposes some constraint , but owing one also complicates life in many ways. 6. According to Chinese law ,every child is entitled to nine years of free education. 7. Life should consist of more than just a struggle for survival. 8. The sight of the helpless child aroused her maternal instinct. 9. The winners of the contest were chosen randomly; no consideration was given to age, gender or income. 10. He has lost the use of his limbs but he is still in possession of all his faculty. 11. Please give the highest priority to this very urgent matter. 12. She enjoyed p arts of her trip to India, but said she found the poverty she saw there rather depressing.
21世纪大学英语2答案.doc
21 世纪大学英语 2 答案【篇一：《21 世纪大学英语》第二册课后翻译答案】 p class=txt>unit1 老伴60 多岁中风去世时，那位72 岁的退休教授不胜悲痛。无人依靠的生活对他来说将是非常困难的。 when his wife died of a stroke in her sixties, the 72-year-old retired professor was overwhelmed by grief. life would be too difficult for him without anybody to rely on. 两位业余画家上个月在伦敦举办了一次个人画展。许多人前去参观，其中包括一些著名的专业画家。 last month two amateur painters held an exhibition of their pictures in london. many people went to see it, including a few celebrated professionals. 当20 世纪80 年代中期，7 名宇航员在“挑战者”号的灾难中遇到困难时，全世界一下子陷入了震惊与悲痛之中。 when seven astronauts died in the challenger disaster in the mid-1980s, it plunged the whole world into shock and grief. 在结束了其第二届首相任期之后，她仍积极参与政治事务。当政府遇到困难时，她屡次前来帮忙。 after completing her second prime ministry, she remained actively involved in political affairs. she came to the rescue several times when the government was in difficulty. 大选失败之后，史密斯博士隐退到一个小村庄，在那里尝试工作。 after his failure in the election campaign, dr. smith retired to a small village, where he tried his hand at farming. 只要你一辈子不停地努力工作，你在回忆里往事时就会感到心满意足的。 as long as you keep working hard all your life, you will recall your past with a glow of satisfaction. 我们现在必须唤醒人们认识到环境保护的重要性。否则很快就为时太晚了。we must awaken people to the importance of environmental protection, or it will be too late. 那位官员因卷入一件政治丑闻而被撤职。如果早知会落到这般地步，他当初也许就会以不同的方式行事了。
大学英语试卷及答案
《大学英语》试卷 考试时间：90分钟闭卷任课老师： 班级：学号：姓名：成绩：Ⅰ.Match the words in column A with the explanations in column B. (15 points) Column A Column B 1.term a.. easy to get to 2.department b. accept sth.as true 3.overseas c. give great pleasure to 4.charge d. one of several division in a university, etc. 5.worth e. abroad 6.believe f. one of the periods into which the academic year is divided 7.somewhat g.. become less tense; rest 8.convenient h.. good of useful enough to do or have 9.relax i. responsibility, care or control 10.delight j. a little II.Multiple choice questions (15 points) There are five sentences in this section. Beneath each sentence there are four choices marked A, B, C and D. Choose one or more that you think are suitable. park. A. paintings B. pictures C. files D. films 12. The is very useful. She can helps me to find many good books. A. employer B. member C. monitor D. librarian 13. Small cars are of fuel, so they have more appeal for consumers. A. free B. short C. typical D. economical 14. Next Sunday is her birthday.I ______her a bicycle as a present. A.allow B.give C.offer D.promise 15. I was in s small countryside in China. A. brought up B. bring up C. raised up D. raise up 16. Miss Yang is likely to be for promotion. A. sent B. recommended C. advised D. reported