主语：Observations of the sky
谓语：make
复合宾语：it appear as if the Sun,the moon,and the stars all revolve around the Earth everyday,while the Earth itself stayed in one place.
其中：宾语：it
宾补：appear as if the Sun,the moon,and the stars all revolve around the Earth everyday,while the Earth itself stayed in one place.
其中：补语是一个无to不定式短语.appear.
appear是系动词,后跟as if 引导的表语从句.
表语从句是个并列句,while是并列连词,表示对比,译作”而“
分析：
前一并列分句：the Sun,the moon,and the stars all revolve around the Earth every day
后一并列分句：the Earth itself stayed in one place.
译：对天空的观察,使人感觉好象每天太阳、月亮以及星星全都围绕着地球转,而地球本身却是呆在原地不动似的.1、不定式短语appear....为什么省to？2、时态问题？记得三个使役动词吗：let, make, have sb. do sth?你不提，我还没有注意到这个时态问题，这个make应为made之误！我再去搜索看一下。确实，网上很多地方都是make, 只有一处：10.20 TPO21 L2 - grandyang2007的日志 - 网易博客博客名称：grandyang2007...　作者：grandyang2007　更新时间：2012-10-20　　 Observations of the sky made it appear as if the Sun, the moon, and the stars all revolve around the Earth everyday, while the Earth itself stayed in one place.事实上，这个revolve也应该是过去时态才对。因为它不是客观真理。由于这是托福听力题，是听写下来的材料，有些拼写错误在所难免。