题目内容
4．Fast fooditselfisn't always bad for you，but too much of it is not good．（it）分析 快餐本身不是对你总是有害，但是太多的话，就不好了．
解答 答案：itself．反身代词本身不能单独作主语，但是可以放在主语后面，一块构成主语．根据"Fast food_____isn't always bad for you"结合英语提示it，可知在主语后面要用itself来和fast food一块构成主语，指快餐本身．故填itself．
点评 首先要仔细阅读句子，结合给予的单词，分析空格处需要的单词形式，最后做出正确答案．
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