介词辨析 1．(2013·新课标卷ⅰ)it was a real race________time to get the project done.luckily，we made it. a．over b．by c．for d．against 解析： 句意为：完成这项工程真的是在与时间赛跑。幸运的是，我们成功了。本题考查介词辨析。over在……上面；by被，由，经由；for支持，赞成；against反对，违背。 答案： d 2．(2013·新课标卷ⅱ)a serious study of physics is impossible________some knowledge of mathematics. a．against b．before c．beyond d．without
