题目内容
10.They were preventedentering(enter) the burning building.分析 他们被阻止进入这座着火的大楼.
解答 答案是entering.本题考查语境中选用所给词的恰当形式;题干中考查短语prevent sb.( from) doing(阻止某人做某事)的被动结构"sb.be prevented (from) doing",故答案是entering.
点评 本题是要求用所给动词的适当形式填空,解题时首先考虑句中需要的是谓语动词还是非谓语动词;其次,如果是谓语动词关注时态、语态和数的变化;如果是非谓语动词要联系非谓语的基本用法判断非谓语的形式.
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