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 Phoenixs 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家用同樣的技術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，而不是地球上長度只有百萬分之一的火星微粒，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性。)(見第二段)這句話是選擇A的依據。

　　5.C 通篇文章都沒有提到有人發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 wont 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…”，這與文章所表達內容明顯不同，所以本題的答案是B.

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