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16.Surfing on the internet for too much time isharmful(harm) to your health.

分析 上网太久对你的健康有害.

解答 答案:harmful.结合句意和常识得知这里是说上网太久对你的健康有害,根据is和to以及所给单词harm是动词伤害,联想到be harmful to表示对…有害,故答案是harmful.

点评 有关短语有:do harm to sb=do sb harm 伤害某人come to harm 身体上或精神上受到损害,一般用于否定句do more harm than good 利大于弊形容词harmful be harmful to…

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