Things are ________ on Mars ________ on Earth because of the different gravity.

A．much lighter; than that
B．much lighter; than those
C．not so light; as that
D．not so light; as those

B

解析試題分析:此題重點(diǎn)考查形容詞的比較級(jí)。根據(jù)語境可知此句的含義是因引力的原因在火星上的東西比在地球上的要輕得多。在形容詞的比較級(jí)的前面常用much，a little，a bit，far等詞來修飾以加強(qiáng)語氣，比較的事物things是復(fù)數(shù)，故后面要用those來代替故選B。
考點(diǎn)：形容詞的比較級(jí)
點(diǎn)評(píng)：做此題首先要分析句子結(jié)構(gòu)知道這是個(gè)比較結(jié)構(gòu)，其次還要知道那些詞可以用來修飾比較級(jí)。That和those可以替代前文的物，前者是單數(shù)或不可數(shù)名詞，后者是可數(shù)名詞的復(fù)數(shù)形式。

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