题目内容
4．It'sdangerous（危险的）for children to swim alone．分析 对孩子们来说，独自游泳是危险的．
解答 答案：dangerous．根据汉语提示"危险的"，及结构 it is adj for sb．to do sth．，此处需形容词，故填dangerous．
点评 考查单词写法及相关结构，考生熟记单词及相关结构是解题的关键．
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