2. 外语
  3. We live in a part of the night sky called the Milky Way Galaxy. Our galaxy can be seen【B1】the naked eye at a clear summer night

We live in a part of the night sky called the Milky Way Galaxy. Our galaxy can be seen【B1】the naked eye at a clear summer night

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问题 We live in a part of the night sky called the Milky Way Galaxy.  Our galaxy can be seen【B1】the naked eye at a clear summer night. It【B2】a ribbon stretched across the night sky. During the summer is【B3】the Milky Way is at its fullest with the stars clustered【B4】. Our galaxy is a gigantic agglomeration of stars whose numbers will probably never been【B5】, though technology advanced rapidly. Currently we【B6】this number to be about thirty billion.  Scientists have assumed that the radius of our galaxy,【B7】it were to be traveled, would【B8】us about fifty thousand light years. We live in small part of the Milky Way Galaxy, which is【B9】to as solar system. The solar system is made up of nine planets, which【B10】the center of galaxy. At the center of our【B11】is the Sun. Mercury is the planet nearest to the Sun. As it does not【B12】, it keeps the same face【B13】the Sun at all times. This【B14】that one side of the planet has a【B15】burning day of 900 F, and the other side a【B16】that is deadly cold. Therefore, life on mercury would be【B17】Mercury is the fastest traveling【B18】the nine planets, making one【B19】circle around the Sun in only eight days. Mercury has little or no atmosphere to diffuse the Sun light. You would also weigh considerable less【B20】the lack of gravity.
选项 A、with
B、by
C、in
D、through
答案A
解析 固定搭配题。这句的意思是“银河系是可以用裸眼看到的”，介词with是“用……”的意思，with用于一件物品或工具，通过使用这个工具做某事。所以应该选A)。in用在这里意思不符，排除。虽然by和with都可以用来表示某人通过……做某事，但是by用于做某个动作，它表示通过做某事而达到了某种效果。through指的是通过某种途径或方式做某事。
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