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高中課本聽(tīng)力人教版(必修)高一上 Unit 18

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[00:11.60]WARMING UP
[00:16.04]"How many new uses can you think of for the folowing items?"
[00:36.49]reminds us of the appearance of nanotechnology,
[00:53.76]according to which nothing is useless and
[01:04.91]no garbage or waste material to speak of
[01:13.17]Everything can be broken up into very small things
[01:23.80]and be made use of.
[01:31.25]The word nano is a scientific term for anything one billionth of a meter long.
[01:49.58]The idea behind it was
[01:54.34]first proposed by Nobel Prize winning scientist Richard Feynman
[02:02.10]in 1959.It was later developed in more detail by Eric Drexler,
[02:10.85]a scientist at the Massachusetts Institute of Technology(MIT)
[02:50.79]He now heads the Foresight Institute,
[02:57.74]a group tormed to encourage research and regulation of all aspects of nanotechnology
[03:24.49]for eric drexler,the benefits of nano technology are literally universal.
[04:00.04]They include space exploration vehicles,which will be cheap to produce because they will only
[04:09.50]need very small rockets.
[04:24.33]More generally,
[04:29.06]humans will be finally able to understand how things really work
[04:37.24]how atoms combine to produce materials with certain qualities.
[05:13.68]"Nanotechnology is expected to touch almost every aspect of our lives,"he says
[05:23.63]"Once we have the ability to structure a molecule,
[05:29.38]we should be able to create systems that will scrub the toxins
[05:37.03](=poisonous things)from the air or remove
[05:42.80]hazardous organisms for the water we drink.

重點(diǎn)單詞   查看全部解釋    
control [kən'trəul]

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n. 克制,控制,管制,操作裝置
vt. 控制

 
remove [ri'mu:v]

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v. 消除,除去,脫掉,搬遷
n. 去除

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delay [di'lei]

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v. 耽擱,推遲,延誤
n. 耽擱,推遲,延期

 
molecule ['mɔlikju:l]

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n. 分子

 
foresight ['fɔ:sait]

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n. 遠(yuǎn)見(jiàn),深謀遠(yuǎn)慮

 
institute ['institju:t]

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n. 學(xué)會(huì),學(xué)院,協(xié)會(huì)
vt. 創(chuàng)立,開(kāi)始,制

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competitive [kəm'petitiv]

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adj. 競(jìng)爭(zhēng)的,比賽的

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appearance [ə'piərəns]

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n. 外表,外貌,出現(xiàn),出場(chǎng),露面

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suitable ['sju:təbl]

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adj. 合適的,適宜的
adv. 合適

 
established [is'tæbliʃt]

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adj. 已被確認(rèn)的,確定的,建立的,制定的 動(dòng)詞est

 
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