问题
名词解释
激发
答案
参考答案：
不同的原子具有不同的能级，在一般的情况下，原子处于能量最低的状态，即基态，当电子或其他粒子与原子相互碰撞，如果其动能稍大于原子的激发能，就可使该气态原子获得一定的能量，从原子的基态过渡至某一较高能级，这一过程叫做激发。
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激发
参考答案：
不同的原子具有不同的能级，在一般的情况下，原子处于能量最低的状态，即基态，当电子或其他粒子与原子相互碰撞，如果其动能稍大于原子的激发能，就可使该气态原子获得一定的能量，从原子的基态过渡至某一较高能级，这一过程叫做激发。
完型填空 （本题共10小题，每小题1分，共10分） Do you like going to the movies? Most of the in high schools like movies very much. Last Sunday I went to a school and asked some students their favorite movies. of their answers were really interesting. Here are their likes and : Jim, a boy, likes watching thrillers(恐怖片)because they are scary exciting. His classmate, Kate can’t stand documentaries(纪录片). She told me they were parents. But she really likes comedies because they are funny. Jack is a big boy. He said he mind documentaries. But he doesn’t like comedies they are boring! And the coolest movies are action movies. Everyone them very much!
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