小题1:C
小题2:D
小题3:A
小题4:C
小题5:B
小题1:根据汉语意思可知答案为C
小题2:根据文章内容And it’s all because of our ears! They bring us a world of sounds.可知答案为D
小题3:根据文章内容可知答案为A
小题4:根据文章内容noise louder than 85 decibels (分贝) can hurt our ears and make us lose our hearing for a short time or even for ever.可知答案为C
小题5:根据文章内容Keep these things in mind! Then you won’t be saying “WHAT? WHAT?” when you are older.可知答案为B