题目内容

8．Teenagers ________ their health because they play computer games too much．（　　）
A．are damagingB．have damagedC．damagedD．will damage

分析 青少年正在损害他们的健康--因为他们玩电脑游戏过多．

解答 答案：A
解析：A：现在进行时；B：现在完成时；C：一般过去时；D：一般将来时．根据句意"青少年正在损害他们的健康--因为他们玩电脑游戏过多"及所给选项分析可知，本题答案为A选项（这里是要突出他们玩电脑游戏时"正在"牺牲自己的健康，故使用现在进行时）；其余选项均不符合题意．

点评 本题考查时态，做此类题目时一定要仔细分析句子结构并根据句意确定句子所需时态，再结合所给选项确定最终答案．

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