The drilling in Antarctica dragged on slowly because of lack of money, equipment breakdowns, environmental ______ and severe cold.
A．concernsB．a(chǎn)ssumptionC．occupationsD．ignorance
A

試題分析：concern關(guān)系，關(guān)心；assumption假定，設(shè)想；occupation職業(yè)；ignorance無知。句意：在南極的勘探工作進(jìn)行的很慢，是因為缺乏資金、設(shè)備出了故障、環(huán)境關(guān)系及天氣寒冷。根據(jù)句意故選A。
點評：本題難度適中。命題者在于讓學(xué)生區(qū)分這四個名詞的用法及意義，學(xué)生容易誤選的是C，這兩個詞在詞形上也相似，這也是命題者容易考查詞形相似的單詞辨析。平時學(xué)生應(yīng)注意這方面的知識的積累。
即學(xué)即練：We are in complete ______  of your plans.
A. concerns B. assumption     C. occupations       D. ignorance
解析：D。句意:我們對你的計劃一無所知。
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