10．Whenever we are in      trouble，we should never lose    heart．（　�。�
A．a； theB．a； aC．/；/D．/； the

分析 無論任何時候我們遇到困難，絕對不應該灰心．

解答 答案：C．
分析句子的意思可知，本句實際上是考查固定短語的搭配，be in trouble處于麻煩中，有困難；lose heart灰心喪氣，中間都不用冠詞；故選C．

點評 解答冠詞的題目注意分清句中所表示的內(nèi)容是特指還是泛指，表示泛指一般用不定冠詞a（an）；而表示特指用定冠詞the．

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