Question 1 of 6
正确答案：B
题目解析：从教授分析可以从crater来了解Moon’s age 以及后来提到了spacecraft’s的moon landing可以得出今天的重点就是To present arguments in favor of another Moon landing。也就是B选项。
Question2 of 6
正确答案：D
题目解析：从professor的分析可以看出spacecraft Clementine拍摄到了South Pole,的照片也就是说飞船飞过了polar regions也就是D选项。从之前的描述中看出它land的地方并不是moon的far side因此C错误。
Question 3 of 6
正确答案：B
题目解析：可以看出professor提到mantle就是为了mantle所能为研究者所提供的信息也就是To explain what kind of information scientists hope to obtain from the mantle。没有将Moon上和earth山的mantle进行任何比较，D错误。Mantle本身是the layer beneath the crust因此不存在To point out that the Moon’s crust and mantle are made of similar materials的说法，C错误。
Question 4 of 6
正确答案：C
题目解析：教授提到因为basin contains lots of smaller craters 所以it must be really old。可得出推断出old的证据就是那些craters。A选项中是其后提到的Clementine?s data indicated that the wall of the south-polar crater was more reflective than expected. So some experts think there?s probably ice there.是推断ice的存在的。与old无关。
Question 5 of 6
正确答案：AB
题目解析：Oxygen could be used to breathe也就是A. Water ice could be processed to provide breathable air for astronauts。and hydrogen could be turned into fuel, rocket fuel也就是B. One component of water ice could be used as a fuel for rockets。
Question 6 of 6
正确答案：D
题目解析：先是说craters无法提供准确的时间信息，而rock sample可以，而这些sample是源于South Pole-Aitken Basin 因此是D。A中并不是craters所提供的年代推测是错误的只是not very precise.因此A错误。
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