10．In our class there are 46 students, ________ ________ half wear glasses.

　　答案：of whom

　　解析：句意：我们班上有46位学生，其中一半戴眼镜。前后两句话之间无连词，故不能用人称代词them。此处“介词＋关系代词”of whom引导定语从句，of whom half相当于half of whom，of表示所属关系。

　　[实战能力·提升]

　　Ⅳ.阅读理解

　　A

　　[2017·山西省太原市部分中学高三统一检测]

　　On July 20,1969，Americans Neil Armstrong and Edwin “Buzz” Aldrin became the first humans to set foot on the moon. It was a defining moment in American history.

　　More US missions to the moon followed. Now, two congresswomen want to preserve the lunar landing sites by granting them the same protection given to national historical parks. On July 8, a bill called the Apollo Lunar Landing Legacy Act was introduced,

　　which would establish a national park on the moon.

　　The purpose of the act is to preserve the sites for scientific research and to improve public understanding of the

　　Apollo program.

　　Apollo is the name of the spacecraft used by

　　American astronauts between 1969 and 1972. If passed,

　　the bill would protect artifacts,

　　such as footprints and equipment, left behind during the seven Apollo missions.

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