4.We find that this task is the most challenging one that we have ever _______.( 。
A.undertakenB.evaluatedC.assumedD.claimed

分析 我們發(fā)現(xiàn)這是我們從事的最具有挑戰(zhàn)的任務(wù).

解答 答案是A.考查動(dòng)詞的辨析.A 從事;B 評(píng)價(jià);C 假定;D 要求,聲稱.句意是:我們發(fā)現(xiàn)這是我們從事的最具有挑戰(zhàn)的任務(wù).故選A.

點(diǎn)評(píng) 解答此類問題首先需要理解每個(gè)單詞的基本含義,并注意交叉含義間的區(qū)別,了解其特殊用法及習(xí)慣搭配等特點(diǎn),然后結(jié)合語境選擇正確答案.

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科目:高中英語 來源: 題型:閱讀理解

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16.
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B.they are not polluted by chemical fertilizer
C.they can be harvested at any time
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