2016年職稱英語《綜合B類》閱讀理解專項習(xí)題(5)

2016年職稱英語《綜合B類》閱讀理解專項習(xí)題匯總

   2016年職稱英語《綜合B類》閱讀理解專項習(xí)題匯總，供考生參考。

　　NASA’s Phoenix Mars Lander1 has taken its first-ever picture of a single particle of rusty Martian dust with one of its microscopes. The dust particles of dust were shown at a higher magnification than anything outside of Earth that has been imaged before. The rounded particle measured only about one micrometer, or one millionth of a meter, across.

　　“Taking this image required the highest resolution microscope operated off Earth2 and a specially designed device to hold the Martian dust,” said Tom Pike, a Phoenix science team member from Imperial College London3. “We always knew it was going to be technically very challenging to image particles this small4.”

　　The device that imaged the dust speck is called an atomic force microscope, which maps the shape of particles in three dimensions by scanning them with a sharp tip at the end of a spring. The atomic force microscope can detail the shapes of particles as small as about 100 nanometers. And this won’t be the last dust particle that Phoenix will image5. “After this first success, we're now working on building up a portrait gallery6 of the dust on Mars,” Pike said.

　　Dust exists everywhere on Mars, coating the surface and giving it its rusty red color. Dust particles also color the Martian sky pink and feed storms that regularly envelope the planet. The ultra-fine7 dust is the medium that actively links gases in the Martian atmosphere to processes in Martian soil, so it is critically important to understanding Mars’ environment8, the researchers said.

　　The $420-million Phoenix mission is analyzing the dust and subsurface ice layers of Mars’ arctic regions to look for signs of potential past habitability. The particle seen in the atomic force microscope image was part of a sample scooped by the robotic arm from the "Snow White" trench and delivered to Phoenix’s microscope station in early July.

　　練習(xí):

　　1. The dust particle on Mars is the smallest particle that has been imaged outside of Earth.

　　A. Right B. Wrong C. Not mentioned

　　2. Using the same technology, we have also measured the size of particles on the moon and Jupiter.

　　A. Right B. Wrong C. Not mentioned

　　3. Scientists use the highest resolution microscope to watch and record the image of Martian particles on earth.

　　A. Right B. Wrong C. Not mentioned

　　4. Tom Pike said that they used to think it was no easy job to image such small particles.

　　A. Right B. Wrong C. Not mentioned

　　5. An electronic device has been developed to measure the weight of certain Martian rocks.

　　A. Right B. Wrong C. Not mentioned

　　6. After collecting the last Martian dust particle, the scientists have started to build up a portrait gallery of it.

　　A. Right B. Wrong C. Not mentioned

　　7. The Phoenix's robotic arm collected the Martian dust particles for analysis on Mars.

　　A. Right B. Wrong C. Not mentioned

　　答案與解析 :

　　1.A第一段說， NASA的鳳凰號火星登陸器用它的顯微鏡觀測地球外長度只有百萬分之一米的微粒。本題的表述與第一段的意思吻合。

　　2.C通篇文章都沒有提到科學(xué)家用同樣的技術(shù)測量月球和水星上的微粒。

　　3.B第一段只是說， NASA的鳳凰號火星登陸器用它的顯微鏡觀察地球外長度只有百萬分之一的火星微粒，而不是地球上，所以本題的表述是錯的。

　　4.A Tom Pike說，“We always knew it was going to be technically very challenging to image particles this small.”(我們過去一直知道，觀察體積如此小的微粒具有很高的挑戰(zhàn)性。)(見第二段)這句話是選擇 A的依據(jù)。

　　5.C通篇文章都沒有提到有人發(fā)明了一種能測量火星上某些微粒的重量的電子裝置。

　　6.B第三段中提到， “… this won't be the last dust particle that Phoenix will image”。接著又說， “After this first success，we’re now working on building up a portrait gallery of the dust on Mars”。而本題卻說： “After collecting the last Martian dust particle，we’re now working on building up …”，這與文章所表達內(nèi)容明顯不同，所以本題的答案是 B。

　　7.A 選擇 A的依據(jù)是文章最后一句： “The particle seen in the atomic force microscope image was part of sample scooped by the robotic arm …”。

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