精选优质文档-倾情为你奉上2010高考英语词汇400题及详解101. Professor Smith and Professor Brown will _ in giving the class lectures. A. exchange B. alter C. shift D. alternate 答案D. alternate. 注释alternate vt./vi. 轮流，交替发生或出现：Wet days alternate with fine days.(晴雨天交替更迭。)The weather today will alternate between fine and cloudy.(今天的天气将是晴间多云。) shift般动，移动（vt.）；转移到，迁移（vi.）；改变：1)Lend me a hand to shift the piano, will you?(请帮个忙搬一下这台钢琴。) 2)They have shifted away from this area.(他们已从这一地区迁走了。) 3)The c
