20.一些歐洲國家一直不愿接受非洲移民,部分原因是他們擔心社會安全問題.(reluctant)Some European countries have been reluctant to admit African immigrants,partly because they are concerned about social security problems..

分析 Some European countries have been reluctant to admit African immigrants,partly because they are concerned about social security problems.

解答 Some European countries have been reluctant to admit African immigrants,partly because they are concerned about social security problems.
根據(jù)句意"一直不愿接受"可知,主句的時態(tài)可以使用現(xiàn)在完成時;而從句表示的擔心應該是現(xiàn)在也有的,所以使用一般現(xiàn)在時.
根據(jù)句意可知,本句需要使用because引導一個原因狀語從句,而主句中包含一個動詞短語be reluctant to do sth不愿意做某事;從句中使用動詞短語be concerned about.

點評 翻譯題在解題時首先要確定好句子的時態(tài),然后要把握好短語表達,最后要注意句子結構.

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