精选优质文档-倾情为你奉上新牛津高中英语模块七第一单元知识点整理及单元练习M7 UNIT1一、词汇大集合【单词】1. It is still uncertain who invented TV. 至今还未能确定谁发明了电视。uncertain adj. 不确定的;无把握的;是certain的反义词 be uncertain about / of sth. 对不确定 / 没把握They are both uncertain about what to do. 他们两人都拿不定主意该怎么办。 Its uncertain + 主语从句 Its uncertain whether he will come tomorrow. 他明天不一定会来。2. superior adj. 优秀的;上等的;有优越感的;无比较级n. 上级;上司 be superior to 优于;胜过 His new computer is technically superior to mine.