“嫦娥四号”月球探测器发射成功

China is only the third nation to carry out a lunar landing, after the United States and Russia. And it’s ready to become the first country in the world to explore the far side of the moon with the launch of a lunar rover Saturday. 
The Chang’e 4 lunar mission lifted off from the Xichang Satellite Launch Center on the early morning of December 8, 2018. It’s expected to land in early January after 26 days of flight, said China’s Aerospace Science and Technology Corp.
The lander will observe whether plants will grow in the low-gravity environment and explore whether there is water or other resources at the poles. Another function of the mission is to study the interaction between solar winds and the moon surface using a new rover.
“Since the far side of the moon is shielded from electromagnetic interference from the Earth, it’s the best place to research the space environment,” said Tongjie Liu, director of the Lunar Exploration and Space Program Center. Because the far side of the moon is free from interference from radio frequencies, the mission requires a relay satellite to transmit signals that was launched into place this year. 
The Chang’e 4 rover is 1.5 meters long and about 1 meter wide and tall, with two solar panels and six wheels. China’s last lunar rover named Yutu stopped operation in August 2016 after 972 days of service on the moon’s surface as part of the Chang’e 3 mission. The overall design of the new rover is inherited from Yutu. “We worked hard to improve its reliability, conducting thousands of experiments to ensure its long-term operation, especially taking into consideration rocks and frictions on the Moon,” Wu Weiren told state broadcaster CCTV in August.

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1.Which of the following is NOT the fact?

A Only China, the USA and Russia can carry out a lunar landing at present.

B China is going to be the first country to explore the far side of the moon.

C The Chang’e 4 lunar mission was launched on the late morning of December 8, 2018.

D The Chang’e 4 lunar mission is expected to land in early January, 2019.

解析：选C。细节理解题。根据第二段第一句The Chang’e 4 lunar mission lifted off from the Xichang Satellite Launch Center on the early morning of December 8, 2018.可知“嫦娥四号”月球探测器是在2018年12月8日凌晨发射的。故选C。

2.What’s not the aim of the Chang’e 4 lunar mission?

A It will check out if plants will grow in the low-gravity environment.

B It will explore whether there is water or other resources at the poles.

C It will study the interaction between solar winds and the moon surface.

D It will transmit signals that was launched into place.

解析：选D。细节理解题。根据第三段的内容可知前三项都是“嫦娥四号”月球探测器的目标。故选D。

3.What do the underlined words “the best place” refer to?

A The low-gravity environment.

B The moon surface.

C The far side of the moon.

D The Lunar Exploration and Space Program Center.

解析：选C。词意指代题。根据画线词组的前后语境可知it指代上文中的the far side of the moon，即进行太空环境研究的“最好地点”。故选C。

4.When was Yutu sent up?

A In 2013.

B In 2016.

C In 2018.

D In 2020.

解析：选A。推理判断题。根据第五段第二句China’s last lunar rover named Yutu stopped operation in August 2016 after 972 days of service on the moon’s surface as part of the Chang’e 3 mission.可知“玉兔”在服役972天后于2016年8月停止运行，由此可推知“玉兔”约在2016年的三年前发射，所以发射时间应该是在2013年。故选A。