2011年公共英语考试四级PETS4阅读(50)

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2011年公共英语考试四级PETS4阅读汇总

Main contents:

本单元主要介绍了现代科学的发展过程,发展特点以及存在的一些问题。学完本单元应该掌握一些技术用语和表达方式,能正确理解涉及计算机,多媒体,医学,天文,环境等方面的科普文章,并且能就这方面的话题与外国人进行沟通和交流。

本课的对话1涉及的交际场景为:安诺得先生正在驱车旅行,可是中途却抛锚了。经过检查,安诺得先生发现汽车没有汽油了。

本课的对话2设计的交际场景为:泰勒夫人想要买一个新门铃。店员告诉她,门铃有两种,一种是塑料的,一种是不锈钢的。经过比较,泰勒夫人选择了塑料门铃,可是后来发现门铃有一个很大的裂缝。

本课的课文告诉我们国际合作在科学领域中普遍存在。课文告诉我们:在科学领域中,一个人从个人的创新思想中比从上百个人更加普遍地进行研究的科学家的持续努力中获得的进步更大。此外,100位学科差异不是很大的科学家一起工作,会比它们独立工作获得更多更快的进步。

Words,Expressions and Grammar

Dialogue

engine n.发动机, 机车, 火车头

accelerator n.加速者, 加速器

ignition n.点火, 点燃

gas gauge气体压力计

tank n. 桶、箱、罐、槽

gas station n.加油站

indicator n.指示器

stainless steel n.不锈钢

1.

hold down保有(一份工作);压抑;压低;控制

e.g.The government is trying every means to hold prices down.

政府正在尽一切办法把物价压下来。

Don’t hold the accelerator down.

I’m holding the button down now, but the bell doesn’t ring.

2.

turn off 关闭,关掉:

e.g.He turned off the television and turned on the radio?

关掉电视,打开收音机。

Could you turn off the radio or turn it down?

可以关掉收音机或者把声音关小一点吗?

That song really turns me off.

我一点也不喜欢那首歌

The play turned the audience off.

这出戏让观众很倒味

3.curb n.路边

4.

steer v.驾驶, 掌舵

e.g.steer an automobile [an airplane]

驾驶汽车[飞机]

He steered the ship carefully between the rocks.

他小心地在礁石间驾驶船。

The ship steers well.这条船好驾驶。

Where are you steering for?你上哪去?

The leaders are steering the country to peace and prosperity.

领导国家走向和平与繁荣

5.

fragile adj.易碎的;易坏的软弱的;无力的;虚弱的

e.g.The thin glass is fragile.

薄玻璃容易碎。

The fragile boxes arrived intact.

这些易碎的箱子完整无损地运到了。

Her parents are worried about her because of her fragile health.

她父母总是很担心她虚弱的体质。

Im feeling rather fragile after all that beer last night.

昨晚喝了啤酒,现在我感到软弱无力。

*fragile,breakable,delicate, brittle

These adjectives mean easily broken or damaged.

1)

Fragile: applies to objects whose lightness or delicacy of material requires that they be handled with great care: 指由于原材料的轻薄精细而需要倍加小心置放。

e.g.a collection of fragile porcelain plates. 一堆易碎的瓷盘。

2)

Breakable: means capable of being broken but do not necessarily imply inherent weakness: 指能被打碎的但并不必然意味着本身的易碎:

e.g.Even earthenware pottery is breakable. 甚至陶器也易碎。

3)

Delicate指太柔软、纤弱或精致以致于极易被伤害的:

e.g.delicate flowers 娇嫩的花朵

The peach is a delicate fruit.桃子是种易受损的水果。

4)

Brittle refers to hardness and inelasticity of material that makes something especially likely to fracture or snap when it is subjected to pressure: Brittle指在受到压力时尤其可能被打碎或折断的物体原料的硬度或无弹性:

e.g.brittle bones 脆骨

6.crack n. 裂缝;缝隙

e.g.There is a crack in the plastic bell.

Theres a crack in this cup. 这只杯子有一条裂缝。

The door was opened just a crack. 这门只打开一条缝。

crack a code.破译密码

crack down on (to act more forcefully to regulate, repress, or restrain) 采取严厉手段;严加取缔

e.g.The police cracked down on speeding on the road. 警察取缔超速行车

The government cracked down on violators。 政府对于违法者采取严厉手段。