美国宇航局“洞察号”探测器成功登陆火星

After seven months of traveling through space, the NASA InSight mission has landed on Mars. A few minutes after landing, InSight sent the official “beep” to NASA to signal that it was alive and well, including a photo of the Martian surface where it landed.
Mission Control at NASA’s Laboratory exploded into applause and cheers after the landing was confirmed. The landing was watched around the world and even broadcast live on the Nasdaq Stock Market tower in New York City’s Times Square. “Today, we successfully landed on Mars for the eighth time in human history,” NASA Administrator Jim Bridenstine said.
  “InSight will teach us valuable science as we prepare to send astronauts to the Moon and later to Mars.” InSight is going to explore a part of Mars that we know the least about: its deep interior. It was launched on May 5. InSight will spend two years investigating the interior where the blocks below the planet’s surface recorded its history.
To reach Mars, InSight traveled 301,223,981 miles at a top speed of 6,200 miles per hour in space, followed by two cube satellites. The suitcase-size spacecraft, called MarCO, are the first cube satellites to fly into deep space. MarCO shared data about InSight when it entered the atmosphere of Mars for the landing.
“We’ve studied Mars from orbit and from the surface since 1965, learning about its weather, atmosphere, geology and surface chemistry,” said Lori Glaze, acting director of the Planetary Science Division in NASA’s Science Mission Directorate. “Now we finally will explore inside Mars and deepen our understanding of our neighbor as NASA prepares to send human explorers deeper into the solar system.”

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1.How did the scientists know InSight worked well?

A It made a movie to the earth.

B It brought back some pictures.

C It sent back a special signal.

D It walked on the surface of Mars.

解析：选C。细节理解题。根据第一段第二句的A few minutes after landing, InSight sent the official “beep” to NASA to signal that it was alive and well可知科学家是通过它发回的特殊的信号而得之它状况良好，运作正常的。故选C。

2.How did the scientists feel after the landing of InSight?

A Worried.

B Excited.

C Surprised.

D Tired.

解析：选B。推理判断题。根据第二段第一句Mission Control at NASA’s Laboratory exploded into applause and cheers after the landing was confirmed.可知控制中心爆发出了掌声和欢呼声，据此可以推知科学家们对“洞察号”探测器在火星着陆感到十分激动。故选B。

3.What will InSight do on Mars?

A It will teach some valuable lessons.

B It will send astronauts to the moon.

C It will take pictures of the surface.

D It will study the interior of Mars.

解析：选D。细节理解题。根据第三段最后一句InSight will spend two years investigating the interior where the blocks below the planet's surface recorded its history.可知“洞察号”探测器将会研究火星的内部。故选D。

4.What was MarCO used for during the mission?

A It studied the blocks.

B It received and sent data.

C It collected the atmosphere.

D It sent human explorers.

解析：选B。细节理解题。根据第四段最后一句MarCO shared data about InSight when it entered the atmosphere of Mars for the landing.可以知MarCO是被用来分享数据的。故选B。