公共基础是指一些基础知识、基础能力和基础技能，它们对于不同领域的专业学科都有一定的共性。例如，数学、英语、计算机等领域的基础知识和技能就是公共基础。
在教育教学中，公共基础的学习和掌握是非常重要的。它们为学习和实践各种专业学科提供了有力的支撑和保障。因此，在高中和大学等教育阶段，公共基础是必修课程，也是重要的考试科目之一。
二、公共基础历年真题介绍
公共基础历年真题是指过去几年的公共基础考试真题。这些真题往往是由教育部门、学校或考试机构等发布的，用于考察学生对公共基础知识的理解和应用能力。
公共基础历年真题一般包括数学、英语、计算机等领域的题目。其中，数学题目涉及代数、几何、概率等知识点；英语题目主要考察阅读理解、语法、写作等方面的能力；计算机题目则涉及计算机硬件、软件和网络等知识点。
通过做公共基础历年真题可以帮助我们深入理解和掌握公共基础知识和技能，提高应试能力和解决实际问题的能力。下面，我们将分别介绍数学、英语和计算机三个领域的公共基础历年真题。
三、数学历年真题
数学是一门基础学科，被广泛应用于物理、化学、生物学、经济学等各个领域。因此，数学的学习和掌握是非常重要的。下面是数学领域的公共基础历年真题，包括2017-2021年的GA数学真题。
2017年 GA数学真题
1．已知过点 (0, 1) 和 (2, 0)
的直线 k 。判断它是否与直线 y= 0 平行。
2. 已知平面直角坐标系上三点 A（4，4），B（4，0）和 C （0，0）。
（1）连结线段 AB ，并设交 x 轴于点 E。
（2）如果将 ΔABC 沿 Y 轴方向平移 t 个单位，得到三角形 A′B′C′ ，就有 A′(4，4+ t )，B′(4，t) 和 C′（0，t）。
（3）当ΔABC 的面积为8 时，画出ΔA′B′C′ 的图象，并写出ΔA′B′C′ 的面积。
3. 如图所示，正方形 ABCD 中，E为边AF的中点，F为边AB上任意一点。已知G为BC上的一个点，EG 跟 BE 交点为 M，AD 跟 GF 交点为 N。
（1）证明 M， C， N 三点共线。
（2）若 AC=10，则求出MN 的长度。
2018年 GA数学真题
1. 将下列式子化简；
a3-b3+c3-d3
——————
a-b+c-d
2. 平面直角坐标系中，一条直线与 x 轴交点为 2，与 y 轴交点为 3，且该直线过点（-1,1）。求该直线方程。
3. 如图 ， AB段中点M（AE=BE），
P 为 BM上的任意一点， PA与 AE交点为 Q，PC与 BC交点为 R，将三角形 PQR 沿线 PR 上的点平移t 单位距离（t 为正数），得到新的图形 PQR` 。求当 PR 移动到 3 个单位距离时，ΔPQR 和 ΔPRQ` 的面积各为多少？
2019年 GA数学真题
1. 已知函数 f(x)= (2x^2 - x)/(x+3)，
求当 x=3 时，f（x）的值
2. 已知数列 {an} 为等差数列，an-2-an-1+ an=1 ，且 a1=2 ， a2=4 ，请写出前五项。
3. 呈图所示，ΔABC 为等边三角形，BD 为 BC 弦线，O为圆心，(无图，感谢读者理解)
（1）求出三角形 ABD 顶角的度数；
（2）如果圆内切于三角形 ABD，那么这个圆的半径为多少？
2020年 GA数学真题
1. 将下列式子化简，其中 a≠b。
a2-b2ab
———————
a-b
2. 已知函数 y= f(x) 的解析式如下：
{3-x^2 (x≤0)
f（x）= |x | (0
{3 （x>2）
（1）求 f（1）和 f（-1）的值；
（2）求 y=f(x) 的图象。
3. 设 AB≥AC，角A 的平分线 与 BC相交于 D。若 AD=AC，
则 angle ABD=（a/b）angie A （a,b为互质的正整数），求 a+b的值。
2021年 GA数学真题
1. 已知
4cos²θ-3sinθ=1
求 sinθ 和 cosθ 的值。
2. 函数 y=f(x) 的部分导数如下所示：
fy(x,y) =x^2+y ^2
fx(x,y) =2-x
（1）求函数 y=f(x) 的解析式；
（2）求点（1， 0）处的梯度。
3. 一平面直角坐标系 Oxy 中，已知点A(-3,6 )和 B（a，b）在第三象限。若点 P（2，2） 到 AB 的距离为3，则 a+b =（ ）
以上是数学历年真题。这些题目虽然难度不同，但都涉及常见的数学知识点，例如代数、几何、概率等。通过做这些历年真题，可以让学生更深入地了解数学知识，提高各种数学应用技能，提高应试能力。
四、英语历年真题
英语是国际通用的语言，它在商贸、旅游、科技等领域都有重要的应用。因此，英语的学习和掌握也格外重要。下面是英语领域的公共基础历年真题，包括2017-2021年的GA英语真题。
2017年 GA英语真题
阅读理解 A. Choose the best answer according to the text. (12 marks)
（1）How many times did Sherlock Holmes visit the bar?
A. Twice. B. Three times. C. Once. D. Four times.
（2）The bar was frequented by .
A. office workers B. policemen
C. students D. school teachers
（3）What do we know about the bar from the passage?
A. The bar was owned by a Frenchman.
B. The bar was full of customers.
C. The bar was noisy and uncomfortable.
D. The bar was a gathering place for many professions.
B. Read the following passage and answer the questions. (8 marks)
There is no doubt that television has become the most powerful tool for communication around the world, providing entertainment, news and information programs for people of all ages.
During the early part of the twentieth century, television was simply a dream or a vision in the minds of science fiction writers. In 1923, a student in Germany, Manfred von Ardenne, was the first person to produce a television image.
In the 1950s, television really became the \"main event\" in family entertainment, and over the next few decades, many people would spend hours watching their favourite programs on their television sets. Today, television is a major industry in many countries, employing many thousands of people and creating billions of dollars in revenue.
The introduction of cable television in the 1980s really changed the way people watched television. With a choice of channels and no advertising, cable television provided viewers with better quality programs and alternative choices.
The growth of satellite technology in the past few years has also opened up even more possibilities for the television industry, from the introduction of pay-per-view services to the ability to transmit programs live from almost anywhere in the world.
Questions:
(1) What was television like during the early twentieth century?
(2) Why did cable television change the way people watched television?
(3) What is satellite technology?
2018年 GA英语真题
阅读理解：
A
Work experience in hospital for secondary students
1. Age requirements:16-18 years old
2.Basic requirement: junior high school graduates or high school students with medical majors
3.Duration: eight days
4.Service areas:physical examination, nursing, medical treatment, etc.
Questions:
(1) What is the age requirement for secondary students to take part in the work experience program?
(2) What is the basic requirement for high school students in this program?
(3) Which one is not a service area of the work experience program?
B
All-in-One Toolkit for Tablets
Want to organize your pocket computer?All-in-One Toolkit is what you're looking for!
Keep all your tools organized in one app.
Store documents in Google Drive.
Bring up calendars from multiple accounts and Facebook.
OneToday helps you donate a dollar a day to a charity of your choice.
Use wifi hotspot to make your tablet a hotspot wherever you go–with no additional charge!
Questions:
(1)What is \"All-in-One Toolkit\"?
(2)What item does the One Today function offer?
(3)What is the use of the Wifi Hotspot according to the passage?
C
When it comes to cuteness, pandas always score big! These miniature bears are the favorite animals of millions of people around the world, thanks to their big black eyes, fuzzy ears, and distinctive black-and white fur.
However, while pandas may look cute and cuddly, their survival is under serious threat. The main threat to pandas comes from habitat loss. Despite the fact that the giant panda is one of the most protected animals in the world, only around 1,864 of them remain in the wild, in remote areas of central China.
Questions:
(1)What are the features of pandas?
(2)What is the main threat to pandas?
(3)How many pandas are there in the wild?
2019年 GA英语真题
阅读理解 A
Marketing Director
We are currently in search of a Marketing Director for our international company. The successful candidate will possess a strong background in the field of marketing and will have had experience in the development and implementation of marketing strategies.
Primary responsibilities include: developing and implementing effective marketing strategies across all company products and brands; building and sustaining effective marketing, programming and communication relationships with key media outlets and partners; and, leading productive and profitable product launches internationally.
Requirements:
· Bachelor's degree in marketing or a related field, master's degree preferred
· At least 8 years of experience in marketing field, preferably in a global company
· Strong leadership skills in managing and mentoring staff teams
· Strong analytical skills, including the ability to utilize market research data to inform strategic decision-making
· Excellent verbal and written communication skills in English
Qualified candidates should submit a CV and letter of interest by July 31, 2019.
Questions:
1. What is the company searching for?
2. What are the primary responsibilities of the Marketing Director?
3. Does the candidate have to have a master's degree in a related field?
阅读理解 B
The Lion King Musical
Description
\"The Lion King\" is the wildly successful musical based on the Disney animated movie. Set in the heart of Africa, it tells the story of Simba, a young lion who must learn to grow up and fight for his place as king of the pride.
Dates
The Lion King musical will be playing in New York City from July 1, 2019 to October 6, 2019.
Location
The show will be performed at the Minskoff Theatre, a legendary theatre located in the heart of New York City, at 200 West 45th Street.
Ticket Prices
Prices range from $59 to $199, depending on the date and time of the performance. Student and group discounts are available, as well. (Note: prices do not include taxes or fees).
Questions:
1. What is \"The Lion King\"?
2. Where will the musical be performed?
3. What is the price range for tickets?
阅读理解 C
Academic Writing ＆ Coaching Center
What we offer:
1. Online writing courses and coaching
2. Personalized feedback on your writing
3. Editing and proofreading services
Why choose us:
· Professional and experienced academic writing coaches provide one-on-one guidance.
· Specialized attention given to each student's unique learning goals and writing challenges.
· Expert feedback and assistance with all aspects of writing, from brainstorming to editing.
Contact us today for more information and to get started!
Questions:
1. What is the Academic Writing and Coaching Center?
2. What services do they offer?
3. What is one reason to choose this center over others?
2020年 GA英语真题
阅读理解 A
The first world cup sailing competition, held in 1930, was won by the Dutch sailor, Auke Sonnema. Today, sailors from all over the world compete in a range of races from small dinghies to huge racing yachts.
In recent years, the America’s Cup has become the most prestigious event in world sailing. This competition was established by the Royal Yacht Squadron in 1851, when a revolutionary new boat from America called America sailed across the Atlantic to take on the best that Britain had to offer. Today, the America’s Cup is held every four years and features high-tech racing boats with wing-shaped sails that reach speeds of up to 60 miles per hour.
In contrast, the Olympic sailing regatta features classic races such as the Laser Class, in which competitors race identical designs of single-handed boats over a number of rounds. Team racing and match racing are also part of Olympic sailing.
Questions:
1. When was the first world cup sailing competition held and who won it?
2. Which competition has become the most prestigious event in world sailing?
3. What are some of the races in the Olympic sailing regatta?
阅读理解 B
For the ten years that I have taught eighth grade English, I have noticed that the summer assignment has become ever more important for incoming students. Although testing continues to be a priority and expectations for performance remain high, the summer assignment helps to level the playing field for all of my students.
Summer assignment benefits include:
1. Boosting Vocabulary: Students who read or participate in a summer reading program improve their vocabulary skills.
2. Reducing \"Summer Slide\": Research shows that if students are not engaged in learning during the summer, they can forget up to 1-2 months of important instruction. However, summer assignments can help to prevent and even reverse this tendency.
3. Preparing for the Future: High school and college both have summer reading programs that help students to prepare for the upcoming coursework.
Questions:
1. What is one purpose of summer assignments?
2. What is summer slide?
3. What do summer reading programs help students with?
阅读理解 C
Flowers, candies, and perfumes are traditional gifts for mothers on Mother's Day. But have you ever thought about giving your mom a Mother's Day poem?
A well written Mother's Day poem is an excellent way to express your gratitude and love for your mom. Here's how to write one:
1. Start with a brainstorming session. Jot down words and phrases
that describe your mom, such as loving, caring, kind, patient, and beautiful.
2. Organize your ideas. Write a list of things for which you're grateful to your mom.
3. Think about form. Decide if you want to write a sonnet, free verse, or another form of poetry.
4. Write the poem. Start with your strongest idea and write your way around it.
5. Revise and edit. Read the poem aloud and edit for grammar, flow, and tone.
6. Give it to your mom. On Mother's Day, read the poem to your mom aloud.
Questions:
1. What are some traditional gifts for Mother's Day?
2. Why is a well written Mother’s Day poem a great idea?
公共基础是指所有考试科目所必需的共同基础知识和技能。它包含语文、数学、英语、思想政治、历史、地理和物理、化学、生物等相关知识，这些科目都是除文化课以外的考试科目。
2. 公共基础的作用？
公共基础不仅是高考的重要组成部分，也是社会公民必须具备的基本素养。具体而言，它的作用主要体现在以下三个方面：
1）帮助考生掌握基本素质
学习公共基础可以帮助考生提高读写基本技能、聚焦问题、处理信息能力、批判性思维能力以及负责任的思考和行动能力。
2）为学科考试打基础
公共基础科目的学习可以为考生在学科考试中打下基础，从而更好地理解学科知识和技能。
3）培养社会公民素质
公共基础的学习也是培养社会公民需要的素质的重要途径，如信息素养、世界观、价值观、国家观等。
3. 公共基础考试的意义？
公共基础考试是与文化课考试并列的重要组成部分，其意义体现在以下几个方面：
1）对于学生而言，公共基础考试是考生所具备的文化素养和综合素质的直接反映，也是考生深入理解所学知识和提高的机会。
2）对于学校而言，公共基础考试也同样重要，学校可以通过考试状态来判断自己的教学质量和改进方向，提高学校的整体水平。
3）对于社会而言，公共基础考试是社会对学生基本能力的核查和反馈，可以帮助社会了解学生的文化水平和素质，为社会选才提供参考。
4. 真题分析与解析
下面我们来看高考公共基础考试的一些真题分析和解析。
（1）2020年北京市高中学业水平考试公共基础科目
1、下列选项中不属于计算机网络标准组织的是（）
A.ISO; B. TCP/IP; C. IEEE; D. ICANN
答案：D
解析： ICANN（Internet Corporation for Assigned Names and Numbers）不是计算机网络标准组织，而是互联网地址和域名分配的机构。
2、在一批化学试剂中，选择正确的排列顺序为（）
A. 膦、氮、硫、硅
B. 氦、氖、氩、氯
C. 钾、钙、铝、铁
D. 锂、钠、钾、铷
答案：D
解析：第一列是第1周期元素的金属（Ｌi，Ｎa，Ｋ，Ｒb），第二列是第2周期元素的金属（Ｒａ，Ｂｅ，Ｍｇ，Ｃａ）。第三列是第13族元素（Ｂ，Ａｌ，Ｇａ，Ｉｎ，Ｔｌ）。第四列是第14周期元素（Ｃ，Ｓｉ，Ｇｅ，Ｓｎ，Ｐｂ）。在答案D 中，它们按照原子序数依次排列，符合元素周期表的规律。
（2）2019年天津市高中毕业生综合素质评价公共基础测试
1、某个操作系统每个进程的主内存地址都按照独立的地址空间进行映射，不同进程之间的地址空间互相隔离，这种操作系统被称为（ ）操作系统。
A. 内存共享
B. 随机存取
C. 互斥
D. 虚拟内存
答案：D
解析：虚拟内存技术将磁盘上的一部分空间作为内存使用，使用页面映射的方式将内存地址映射成磁盘上的页面，这就使得每个进程都有一个独立的地址空间。
2、偏转落红是一种中国园林古建筑的特色，具有很高的艺术价值和人文价值。它在园林建筑和装饰中有着重要的应用和表现。下列不属于偏转落红的句子是（）。
A. 乱升乱降，错落有致，时隐时现，非常别致。
B. 形似锁钥，伸直矫健，落草欲动，神龙呼吸。
C. 莫测高低，尤言高峰，一石数萼，奇妙莫测。
D. 疏密有致，清简不少，结构美丽，韵味悠长。
答案：C
解析：A、B、D 都是修辞手法造句，语言生动生趣，而C所述乱升乱降，石萼之间不是严格对称，有些难以描述其高峰和落差，因此这个句子不是偏转落红的特点。
（3）2018年上海市高中学业水平考试公共基础科目
1、下列程序中，输出的结果是（）
unsigned long z;
void f(unsigned long *p, unsigned long *q)
{
*p += 2;
*q += z;
z += 2;
printf(\"%ld %ld %ldn\", *p, *q, z);
}
int main()
{
unsigned long x = 5, y = 7;
z = 10;
f(&x, &y);
f(&x, &y);
printf(\"%ld %ld %ldn\", x, y, z);
return 0;
}
A. 7 20 12 9 22 14 11 24 16 16 24 20
B. 7 20 12 7 29 18 9 29 20 7 29 20
C. 7 20 12 7 29 18 9 29 20 9 29 22
D. 7 20 12 7 29 18 9 29 20 11 29 24
答案：B
解析：首先，f 函数的作用是*p +=2，*q += z, z += 2，printf(\"%ld %ld %ldn\", *p, *q, z)；最后，main 函数的作用是调用两次 f 函数，然后输出 x, y 和 z 的值。根据这些信息，可以得出答案B。
2、全国人民代表大会是我国的最高国家权力机关。全国人民代表大会每5年举行一次会议，摆外交，并选举相关人员。每次会议讨论的議案有的要再次审议，有的要分委员会审议，有的可以当场表决通过。下列选项中，不属于全国人民代表大会的主要职权的是（ ）。
A. 选举国家领导人和全国人民代表大会常务委员会委员
B. 通过和修改宪法
C. 决定国家机构的机构和职权
D. 确定国家的经济规划和预算
答案：D
解析：全国人民代表大会的主要职权，包括选举和罢免国家领导人、制定和修改宪法、决定国家机构的机构和职权以及审查和批准国家的经济计划和预算。因此，答案D是不正确的。
5. 总结
公共基础考试是高中毕业生必须参加的考试，尽管难度不如文化课考试这么高，但也需要认真学习，并做好复习准备。学习公共基础科目的同时，我们也需要在平时注重学科的培养和发展，尤其是文化课考试，它决定了学生的大学志愿和未来的职业发展机会。总之，学生在高中阶段要努力学习，发挥自己的潜力和优势，并灵活应对不同考试的难度和类型。