China has become the first country to land a spacecraft on the far side of the moon. The unmanned Chang’e-4 probe (探测器) - the name was inspired by an ancient Chinese moon goddess 【C1】________ (touch) down last week in the South Pole-Aitken basin. Landing on the moon’s far side is 【C2】________ (extreme) challenging. Because the moon’s body blocks direct radio communication with a probe, China first had to put a satellite in orbit above the moon in a spot 【C3】________ it could send signals to the spacecraft and to Earth. The far side of the moon is of particular 【C4】________ (interesting) to scientists because it has a lot of deep craters (环形山)， more so 【C5】________ the familiar near side. Chinese researchers hope to use the instruments onboard Chang’e-4 【C6】________ (find) and study areas of the South Pole-Aitken basin. ＂This really excites scientists,＂ Carle Pieters, a scientist at Brown University, says, ＂because it 【C7】________ (mean) we have the chance to obtain information about how the moon 【C8】________ (construct)＂ Data about the moon’s composition, such as how 【C9】________ ice and other treasures it contains, could help China decide whether 【C10】________(it) plans for a future lunar (月球的) base are practical. 

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