We can never expect bluer sky unless we create less polluted world．( )A．a,aB．a,theC．the,aD．the,the 题目和参考答案——青夏教育精英家教网—

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14．We can never expect ____ bluer sky unless we create _____ less polluted world．（　　）

A．

a；a

B．

a；the

C．

the；a

D．

the；the

分析如果我们不减少这个世界的污染，我们就绝不可能指望有一片更加蔚蓝的天空．

解答答案：A
句意表达的是"一片更加蔚蓝的天空"和"一个更加清洁的世界"，均为泛指，要用不定冠词．故选A．

点评冠词是一种虚词，本身不能独立使用，只能放在名词前帮助说明名词所指的人或事物，它是英语词性中最小的一类，只有三个，一种是不定冠词a，an；一种是定冠词the．此外也有些特定场合不用冠词，即通常所称的零冠词．不定冠词表示泛指，定冠词表示特指．

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