最佳答案历年二建真题及答案解析 一、语文部分 1. 单句填空 （1） 乐曲激越的旋律，给人无尽的_____。 答案：激情 解析：本题考查语感判断能力，从句子的语境中可以推断出该填写的单词应该是与...

历年二建真题及答案解析

一、语文部分

1. 单句填空

（1） 乐曲激越的旋律，给人无尽的_____。

答案：激情

解析：本题考查语感判断能力，从句子的语境中可以推断出该填写的单词应该是与“旋律”相匹配的词汇，而“激情”则符合语义特征，所以应该填写“激情”。

2. 改错

（2） 对于人来说，知识是攀登高峰的绳索。

（3） 人们存在的价值不键与他们的财富多少。

答案：（2）绳索前加上“一” （3）键改为关

解析：本题考查的是对语法和表达的掌握能力。句子（2）中，由于句子中缺少量的限定，所以需要加上“一”；而句子（3）中，“键”显然是误枚，应该改为“关”，使得句子语义通顺。

二、数学部分

1. 几何推理

（1）如图，直线MN // 直线AB，P为线段NN'的中点，Q为线段MM'的中点，连接PN、N'Q交于点X，连接PQ，求证D、X、M'三点共线。

答案：由MN // AB 可以得到：∠NN'P = ∠M'NQ，同时，由P、Q分别为线段NN'、MM'的中点，所以PN = N'Q，PM = MQ，因此，按照作图方法如下：

连接MD和DN，由于PN = N'Q，所以M'Q = NP，而且 ∠PM'Q = ∠N'PN = 180°-∠DMN，同理可得 ∠M'PM = ∠N'PN，因此三角形PM'Q与PNM'都是等腰三角形，于是得到：∠QMP = ∠M'PN，∠MQP = ∠N'PM'，所以按照顺序可以得到：∠QMP+∠MQP = ∠M'PN+∠N'PM' 。因此，D、X、M'三点共线。证毕。

2. 线性规划

（2）现有两种材料，其成本分别为每公斤1元和2元。要求生产出价值一定的产品，不能超过企业生产能力，求该产品的最大利润。

答案：按照线性规划的方法，可建立如下方程系统：

max Z = 3x1 + 2x2

st. x1 + 2x2 ≤ 200

2x1 + 3x2 ≤ 300

x1, x2 ≥ 0

由于此题只有两个线性方程式，可以采用图解法求解。通过绘制如下图表，可以发现最优解为（100,50），此时产出的产品价值为350。

三、英语部分

1. 阅读理解

（1）假设你是李华，你的英国朋友Jim到你邀请下，将于8月6日到你所在城市进行一个星期的旅游。你需在接下来的四天内帮Jim安排行程。请根据以下提示，为Jim设计一个行程，并写一封电子邮件告知Jim。

1.8月7日全天时间，Jim将参观鼓浪屿，因此您需要在7日早上早早地到达码头，并乘坐轮船，它是它直达鼓浪屿的。在鼓浪屿上， Jim可以参观许多美丽的景点，以及品尝当地美食。

2.8月8日上午，Jim可以去参观当地的博物馆，这将帮助他更好了解本地文化和历史。

3.8月9日下午，您可以带Jim去当地的海滩游泳。

4.8月10日下午，Jim可以去城市中心的商业街购物，体验当地文化和风俗。

答案：Dear Jim,

I’m really looking forward to your visit to our city next week. And I’m sure you will have a very enjoyable and interesting time here. Here’s a brief outline of the itinerary that I have arranged for you.

On August 6th, when you arrive in our city at the airport, I will be there to meet you and take you to your hotel. You will stay there for a week. On August 7th, we’ll take a ferry to Gulangyu Island early in the morning, where you can visit many beautiful scenic spots and enjoy the local food there.

On August 8th morning, we’ll visit the local museum, which will help you better understand the local culture and history. On August 9th afternoon, we can go swimming on the local beach. And on August 10th afternoon, you can go shopping on the commercial street in the city center, experiencing the local culture and customs.

I hope you like the trip planned for you. If you have any questions, please feel free to contact me at any time.

Best regards,

Li Hua

2. 完形填空

（2）I once had a friend named Peggy. Peggy thought that her weight was her greatest problem. She felt that people only noticed her weight and sometimes called her names.

One day, we were on a bus together, and Peggy was her usual self, talking about her weight. A woman in the seat in front turned and said, “You know, you’re pretty. You look like my daughter.” Peggy smiled and , “Thank you,” but I knew the real Peggy didn’t believe her. The woman’s kind words meant nothing compared to the cruel ones Peggy heard daily.

The next week, Peggy and I were at a local restaurant when a young man asked to join us. We agreed, and nothing seemed unusual until the end of the meal. The young man got his chair and said he had to leave, but before he did, he looked at Peggy and told her that she was the most beautiful woman he’d ever seen. Peggy was dumbfounded (惊讶的). Tears welled up in her eyes as she thanked the man for his words.

答案：A. always B. her C. answered D. up from

解析：本题考查的是对文章主旨的理解和对上下文的把握。根据文章的前后文，可以发现上下文主要在描述一个关于Peggy的故事，尤其是描述她如何克服自己的缺点和获得自信。因此，正确答案应该是本题中选项C，即答案为“answered”。