Some researchers are finding that daydreaming may be important to ______ mental health. Daydreaming, they say, is ______ good means of relaxation.
A．the; 不填B．不填 ; theC．不填; aD．不填; 不填
C

試題分析：考查冠詞：第一空不填，mental health精神健康，是抽象名詞，第二空填a，泛指一個很好的手段，句意;一些研究者發(fā)現(xiàn)白日夢對精神健康是很重要的，他們說白日夢是很好的放松手段。選C。
點(diǎn)評：冠詞的考查集中在固定詞組和the表示特指；a/an表示泛指；同時也要注意一些不用冠詞的情況。
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