小测验：选择正确的单词

1. nervous system
   神经系统
   
2. nervous tissue
   神经组织
   
3. autonomic nervous system
   n.自主神经系统,植物性神经系统
   
4. central nervous system
   中枢神经系统
   
5. nervous breakdown
   n.[医]神经失常
   
6. parasympathetic nervous system
   副交感神经系统
   
7. peripheral nervous system
   外周神经素，周围神经系
   
8. sympathetic nervous system
   交感神经系
   
9. nervous exhaustion
   【医】 神经衰弱, 脑力衰竭
   
10. nervous prostration
    【医】 神经衰弱
    

1. He was oBviously very nervous.
   显然他很紧张。
2. To laugh in a restrained,nervous way;giggle.
   窃笑以一种克制的、紧张的方式笑;傻笑
3. The bashful boy was nervous with strangers.
   那个害羞的小男孩遇到陌生人就紧张。
4. A nervous disorder.
   神经混乱
5. Clay was nervous on the eve of the examination.
   克莱在考试前夕很紧张。

　5个形容词解释