What’stheredstarintheskythroughatelescope(望遠鏡)?ItisM...
問題詳情:
What’s the red star in the sky through a telescope(望遠鏡)? It is Mars. Do you want to know more about it? Take the “Mars Orbit Express”!
“Mars Orbit Express” is a space probe (探測器). It was sent towards Mars by American scientists on August 12th,2005. Its tasks are to study Mars’ atmosphere and return photos to Earth. But before that “Mars Orbit Express” must travel about 100 hundred million kilometers and seven months. It reached Mars’ orbit(軌道)in March,2006.
Mars and Earth have similar weight and size. However,Mars is closer to the sun than Earth. Mars is very cold. The average temperature is below 50℃. The temperature at noon only reaches 20℃ during a Mars day. Its atmosphere is mostly CO2. It has much sand and two moons---Phobos and Deimos.
Scientists think Earth and Mars had similar beginnings 4.6 billion years ago. But while Earth supports millions of lives,Mars becomes bad. “Earth easily could have turned out like that.” said an scientist, “It is important for us to find out why and Mars Orbit Express’ should do that.” “Mars Orbit Express” also would help scientists to learn what might happen to Earth in the future. “Mars Orbit Express” would work for about four years.
1. What can you see through a telescope when watching Mars? ________.
A. Much sand B.A red star C. Its atmosphere D. Its size
2. One of the tasks of Mars Orbit Express is _______.
A. taking pictures of Mars
B. studying the weight of Mars
C. finding out distance between Earth and Mars
D. telling the time it takes to go from Earth to Mars
3. Compared with Earth,_______.
A. Mars has a long history B. Mars is big and heavy
C. Mars is close to the sun D. Mars’ atmosphere is mainly O2.
4. Which might be the proper title for the passage?
A. Mars:differences from Earth B. A probe:to learn more about Mars
C. Mars: change of temperature D. A probe:to tell the future of Earth
【回答】
1B 2A 3C 4B
知識點:日常生活類
題型:閱讀理解
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以下各組國家中,人口增長模式不同的是A.阿曼和孟加拉國 B...
問題詳情:以下各組國家中,人口增長模式不同的是A.阿曼和孟加拉國 B.巴西和匈牙利C.澳大利亞和美國 D.韓國和新加坡【回答】B知識點:人口與地理環境...
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閱讀下文,根據文中的情境,選出依序最合適填入*、乙的選項。(3分)清光四*,天空皎潔, * ,坐客無...
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(1)觀察下圖,請將下列國家的英文字母代號填入答題卡圖中對應的方框內。早期殖*家:A.葡萄牙 B.英國(2)...
問題詳情:(1)觀察下圖,請將下列國家的英文字母代號填入答題卡圖中對應的方框內。早期殖*家:A.葡萄牙 B.英國(2)仔細觀察該圖,據圖指出奴隸貿易的主要集運地的分佈特點。【回答】 (1)上框B,下框A。(2)主要分佈在非洲西海岸和東海岸。知識點:血腥的資本積累題型:綜合題...
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光明在低頭的一瞬 ...
問題詳情: 光明在低頭的一瞬 遲子建 ...
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