太奇教育“每日一练”进行中！四月份以来，针对MPAcc考研英语，太奇教育相继为MPAcc备考生们推出了英语阅读理解练习、英译汉专项练习、词汇词组自测等相关试题。日前，太奇教育继续向考生们推出MPAcc英语词汇自测习题及详细解析。

　　1.Last year，the crime rate in Chicago has sharply____.

　　A) declined B) lessened C) descended D) slipped

　　答案：A decline 下降，犯罪率下降应用“decline”。lessen 减少，减轻。descend 走下来，落下来。slip 滑倒。

　　2.The teacher asked the students to _____ the Christmas tree.

　　A) furnish B) embellish C) decorate D) adorn

　　答案：C 四个同都有“装饰”的意思。decorate 用于房屋、街道、人等方面，目的在于美化、庆祝等。furnish 为……配备家具。adorn 是很正式的用词，常用于指人，如：She adorned herself with Jewels. embellish 常有比喻的意思，如：He embellished the story to make it more amu sing。

　　3.The lamp would not work because of a ____ in the switch.

　　A) mistake B) defect C) error D) fault

　　答案：B defect 瑕疵，缺点;不足。

　　4.The_____ lawyer made a great impression on the jury.

　　A) defending B) guarding C) shielding D) protecting

　　答案：A the defending lawyer (被告的)辩方律师。

　　5.I'm not sure whether I can gain any profit from the investment, so I can't make a(n)____ promise to help you.

　　A) exact B) defined C) definite D)sure

　　答案：C definite 肯定的，明确的。exact 确切的，精确的。defined 下了定义的 规定的;确定的。Sure 肯定的，有把握的。