发帖
雷达卡
考博英语每日一练（8.28）考博加油！
1. They______ the floor until the timber had turned white.
A. swept
B. scrubbed
C. dusted
D. tidied
2. Personal computers are no longer something beyond the ordinary people; they are ______available these days.
A. promptly
B. instantly
C. readily
D. quickly
【补全句子】
1. We often use “x” to _________ _________ an unknown number while doing maths exercises. 当我们做数学题时，我们经常用 X 来代替未知数。
2. He has not only finished his own work, but helped others_________ _________. 他不仅自己完成了他自己的工作，也帮其他人完成了。
考博英语每日一练（8.28）参考答案
1.B
【句意】他们用力擦洗地板直到木料变白。
【解析】动词词义辨析。sweep（其过去式为swept）“打扫；席卷；挥动，舞动（手、臂等）”；scrub（其过去式为scrubbed）“用力擦洗；使净化”；dust（其过去式为dusted）“把（粉末）撒于；拂去灰尘”；tidy（其过去式为tidied）“整理；收拾；弄整齐”。由关键词“until the timber had turned white直到木料变白”知“用力擦洗”符合，由此知B项正确。
2.C
【句意】私人电脑对普通人来说不再是遥不可及的，现在它们是可容易获得的。
【解析】副词词义辨析。promptly“敏捷地；迅速地”；instantly“立即地”；readily“容易地；乐意地”；quickly“迅速地”。由句中关键词“are no longer something beyond the ordinary people对普通人来说不再是遥不可及的”与“available可获得的”的对应知“容易地”符合语境，故C项正确。
【补全句子参考答案】
1. stand for
2. as well
京公网安备 11010802022788号
