针对MPAcc考研英语，进入六月，太奇教育继续向考生们推出MPAcc英语基础词汇自测习题及详细解析，希望MPAcc考生们可以借助试题提高解题速度。

　　1._____you have come, you may as well stay.

　　A) Since that B) By now C) Since when D) Now that

　　答案：D since可直接引导从句，不接其他连诃。By now“到目前为止”，只作状语，不能用来连接前后两个句子。

　　2.A lot of ants are always invading my kitchen. They are a thorough _____.

　　A) nuisance B) trouble C) worry D) anxiety

　　答案：A nuisance 令人讨厌的东西或人。

　　3.Since it is too late to change my mind now, I am____ to carrying out the plan.

　　A) obliged B) committed C) engaged D) resolved

　　答案：B be committed to 答应，承担( 做某事或支持某事) 。be obliged to使感激：I’m obliged to you. engage 使从事于，使忙于。resolve 决心，决定;解决，解答。

　　4.Because a degree from a good university is the means to a better job, education is one of the most____ areas in Japanese life.

　　A) sophisticated B) competitive C) considerate D) superficial

　　答案：B competitive 竞争性的，竞争力强的;爱竞争的。sophisticated 老练的，富有经验的;复杂的。considerate( of/to) 为别人考虑的，考虑周到的，体贴他人的。superficial 表面的，表层的。

　　5.To be sure, some insects can build complex societies ____different types of individuals performing different tasks.

　　A) taken from B) composed of C) made of D) developed from

　　答案：B composed of 由……组成，由…….构成。taken from取自。made of 由(…….材料) 做成。developed from 由……发展而来。