精选优质文档-倾情为你奉上单词1alternative n(二者当中)选一个，供选择的东西adj.(二者当中)选其一的，供选择的归纳拓展(1)have no alternative but to do.除外别无选择alternative ways可供选择的两种方法alternative energy替代性能源(2)alternatively adv.两者挑一地(3)alternate v交替；轮流alternate.and/with使交替发生或出现；轮流安排例句：Caught in the act，he had no alternative but to confess.他被当场抓住，除了招供外别无选择。I offered the alternative suggestions of spending the holiday in the mountains or by the sea.我建议这次度假是到山上或是去海边。We tried to alternate periods of work wit
