The gravity on Mars is only about there eighths of ________ on the Earth. A. that B.

The gravity on Mars is only about there eighths of ________ on the Earth.

A that B those C one D ones

答案

A

【详解】

句意:火星的引力只有地球的八分之一。

考查代词辨析。 that 特指的名词与前面的名词只是同一类,但并非同一个,即同名异物,相当于 the+ 名词; those that 的复数形式,只能代替可数名词复数; one 泛指与前面的名词同类的另一事物,即同名异物,相当于 a/an+ 名词; ones one 的复数形式。本句中 “The gravity” 是单数形式,且是 “the+ 名词 结构,故代词应用 that 。故选 A

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