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2008年职称英语考题预测及教材变动复习重点,上

2019-11-17 14:53

  中新网2月19日电 据发改委网站消息,为防止近期电煤供应再度紧张,保证电力发输电生产秩序的平稳,国务院煤电油运和抢险抗灾应急指挥中心要求各地组织好煤炭生产,做好有序用电工作,认真落实以煤定电、以电定用、有序用电、节约用电的要求。各受灾地区要确保灾后重建用电。

记者昨日获悉,虽然今年全国硕士研究生统一入学考试成绩要到3月才揭晓,不过,本市部分高校为避免招到“高分低能”学生,已经纷纷提高了复试占总成绩的比重,一些专业甚至达到了50%。

2008年教材上新增了大约17篇文章,词汇选项,阅读判断, 概括大意完成句子, 阅读理解, 补全短文, 完型填空各个题型上都有新增文章。 理工类和卫生类新增的文章更体现专业性。新增文章的语言难度和问题考点设置情况在一定程度上反映了08年考题的出题趋势。

  应急指挥中心要求有关省市要抓紧组织煤矿在确保安全的前提下,尽快恢复正常的生产、供应。铁路、交通部门要继续对电煤运输给予重点保证。

  在复旦大学研招办最新公布的“2008年硕士研究生入学考试复试科目、方式、复试成绩权重及同等学力加试科目”中,27个院、系(所)均把复试成绩的权重提高至总成绩的50%。

(难度B/A级/2008年理工类教材新增文章)

  应急指挥中心强调,各地要认真落实以煤定电、以电定用、有序用电、节约用电的要求,严禁超发电、超用电,保持骨干电厂存煤在正常水平。

  据悉,除复旦外,华东师大、上海财大等高校也“跟风”提高了复试成绩比重,财大以前不少专业的复试成绩权重在20%左右,此次各学院按各自学科发展方向特点,分别提高这一权重至30%、40%和50%。

The Tiniest Electric Motor in the World

  应急指挥中心要求,各地要切实做好结构调整工作,压缩高耗能高排放企业和产能过剩行业用电,停止不符合产业政策、违规建设和淘汰类企业用电;优先保障居民生活、医院、学校、铁路交通、煤矿、金融机构、通信、农业生产等重点用户的用电。全社会各有关方面都要采取有效措施,实现节约用电。

  1. Scientists recently made public the tiniest electric motor ever built. You could stuff hundreds of them into the period at the end of this sentence. One day a similar engine might power a tiny mechanical doctor that would travel through your body to remove your disease.

  2. The motor works by shuffling(来回运动) atoms(原子) between two molten metal droplets(小滴) in a carbon nanotube(纳米管). One droplet is even smaller than the other. When a small electric current is applied to the droplets, atoms slowly get out of the larger droplet and join the smaller one. The small droplet grows – but never gets as big as the other droplet – and eventually bumps into the large droplet. As they touch, the large droplet rapidly sops up (吸入)the atoms it had previously lost. This quick shift in energy produces a power stroke(动力行程).

  3. The technique exploits the fact that surface tension -- the tendency of atoms or molecules to resist separating -- becomes more important at small scales. Surface tension is the same thing that allows some insects to walk on water.

  4. 云顶娱乐,Although the amount of energy produced is small -- 20 microwatts(百万分之一瓦) -- it is quite impressive(给人印象深刻的) in relation to(与...相比) the tiny scale of the motor. The whole setup is less than 200 nanometers on a side, or hundreds of times smaller than the width of a human hair. If it could be scaled up to the size of an automobile engine, it would be 100 million times more powerful than a Toyota Camry’s 225 horsepower V6 engine.

  5. In 1988, Professor Richard Muller and colleagues made the first operating(工作的, 运行的) micromotor(微型发动机), which was 100 microns(微米) across, or about the thickness of a human hair. In 2003, Zettl's group created the first nanoscale motor. In 2006, they built a nanoconveyor(纳米传送带), which moves tiny particles along like cars in a factory.

  6. Nanotechnology(纳米技术) engineers try to mimic nature, building things atom-by-atom. Among other things, nanomotors could be used in optical circuits to redirect light, a process called optical switching. Futurists envision(预想) a day when nanomachines(纳米机器), powered by nanomotors(纳米发动机), travel inside your body to find disease and repair damaged cells.

练习:

  1. Paragraph 2

  2. Paragraph 4

  3. Paragraph 5

  4. Paragraph 6

A An introduction of a Toyota’s 225 horsepower V6 engine.

B A description of the nanomotor in terms of power and size.

C [u]Surface tension[/u](表面张力).

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