现代战争的空袭特点是突发性强、（）、破坏性大，对国家安全和人民生命财产构成严重威胁。

选词填空。用方框中所给词的适当形式填空，使文章通顺、连贯、合理。（每空一词，每词限用一次，其中有两个词是多余的。共8分）

really

exercise

thin

without

nothing

interesting

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Do you know what couch-potato means? Well, in America, the word is now often    小题1:. You see, in America, many people often spend their free time    小题2: on a couch (沙发) watching TV. As there are many channels to choose, the TV programs can be quite    小题3:  and very addictive (使人上瘾的). One may sit and watch TV for hours and hours    小题4:  stopping! Well, these people who do    小题5:  all day except watching TV are called couch-potatoes.
In America, while watching TV, most people are always sitting with eyes still looking right into the TV set. Also because these people are addictive to watch TV, they don’t take    小题6:  and usually get very fat. So in many ways, these people look like    小题7:  potatoes! Well, because they look    小题8:, and watch TV on a couch, they are all called couch-potatoes. Now you know what a couch-potato means. The next time if you see someone watching TV too long, just say, “What a couch-potato!”