📚 Year 7 AQA Computer Science: Summer Preparation and Bridging Course | 七年级 AQA 计算机科学：暑期预习与衔接课程
Welcome to the start of your Computer Science journey! Moving from primary school to Year 7 is an exciting step, and this summer preparation guide is designed to give you a gentle, fun introduction to the core ideas you will explore in your AQA Computer Science lessons. Whether you are completely new to coding or already enjoy tinkering with technology, these pages will help you build confidence before September. We will look at what computer science really means, how to stay safe online, and how to think like a problem-solver. Grab a notebook, try the activities, and remember: every expert was once a beginner.
欢迎开启你的计算机科学之旅！从小学升入七年级是令人兴奋的一步，这份暑期预习指南旨在为你轻松、有趣地介绍 AQA 计算机科学课程中将探索的核心概念。无论你是编程新手，还是已经喜欢摆弄科技，这些内容都能帮助你在九月份开学前建立信心。我们将了解计算机科学到底意味着什么、如何安全上网，以及如何像解决问题的人一样思考。准备好笔记本，尝试各种活动，并记住：每一位专家都曾是初学者。
1. What is Computer Science? | 什么是计算机科学？
Computer Science is not just about using computers; it is the study of how computers work and how we can make them solve problems. You will learn to think logically, design step-by-step instructions called algorithms, and write code that turns your ideas into reality. Unlike ICT, which focuses on using software like word processors, Computer Science digs deeper into the principles behind the screen. From creating games to understanding how the internet sends data, this subject gives you a digital superpower.
计算机科学不仅仅是使用电脑；它研究的是计算机如何工作，以及我们如何让它们解决问题。你将学会逻辑思考，设计称为算法的分步指令，并编写代码将你的想法变为现实。与侧重于使用文字处理等软件的信息通信技术不同，计算机科学更深入地挖掘屏幕背后的原理。从制作游戏到理解互联网如何传输数据，这门学科会赋予你一种数字超能力。
During the summer, try to notice technology around you: a supermarket checkout, a traffic light, or a smart speaker. Ask yourself, 'What instructions might be running inside this machine?' This simple habit begins to train your computational thinking.
暑假期间，试着留意身边的技术：超市收银台、交通信号灯或智能音箱。问问自己：“这台机器内部可能在运行什么指令？”这个简单的习惯就开始训练你的计算思维。
2. The School Lab and E-Safety | 学校机房与网络安全
When you start Year 7, you will work in a school computer lab with rules designed to keep you and the equipment safe. You must never share passwords, eat or drink near keyboards, or try to access blocked websites. Your teachers will explain the Acceptable Use Policy (AUP), which you and your parents will sign. This agreement helps create a respectful, secure learning environment.
当你开始七年级时，你将在学校计算机机房学习，那里有旨在保护你和设备安全的规则。你绝对不能分享密码、不能在键盘旁吃喝，也不能试图访问被屏蔽的网站。老师会向你解释可接受使用政策，并需要你和家长签字。这份协议有助于营造一个尊重、安全的学习环境。
E-safety is a massive topic. Always keep personal information private—your full name, address, phone number, and school name should stay hidden online. If someone you do not know sends a message, tell a trusted adult straight away. Remember that once something is posted online, it can be very hard to remove. Think before you share.
网络安全是一个重大的话题。始终对个人信息保密——你的全名、地址、电话号码和学校名称都应该藏在网上。如果有不认识的人发来消息，立即告诉可信任的成年人。记住，一旦内容发布上网，可能就很难删除。在分享之前要三思。
3. How Computers Work: Input, Process, Output | 计算机如何工作：输入、处理、输出
All computer systems follow a simple three-step model: input, process, and output. You give the computer data through an input device like a keyboard, mouse, touchscreen, or microphone. The central processing unit (CPU) then processes this data by following stored instructions. Finally, the results are shown through an output device such as a monitor, printer, or speakers. For example, when you type a sum into a calculator app, the touchscreen is the input, the app calculates the answer, and the screen displays the result as output.
所有的计算机系统都遵循一个简单的三步模型：输入、处理和输出。你通过键盘、鼠标、触摸屏或麦克风等输入设备向计算机提供数据。中央处理器随后按照存储的指令来处理这些数据。最后，结果通过显示器、打印机或扬声器等输出设备展示出来。例如，当你在计算器应用中输入一道算术题时，触摸屏是输入，应用计算出答案，屏幕将结果显示为输出。
A fun summer activity: draw a table with three columns labelled Input, Process, Output. List everyday devices like a microwave, a games console, and a digital camera, then fill in what each step involves. This will prepare you for system diagrams in class.
一个有趣的暑期活动：画一个有三列的表格，分别标注为输入、处理、输出。列出微波炉、游戏机、数码相机等日常设备，然后填写每一步涉及的内容。这将为你在课堂上学习系统图做好准备。
4. Hardware and Software | 硬件与软件
Hardware refers to the physical parts of a computer you can touch: the screen, motherboard, hard drive, RAM, and cables. Software is the set of instructions that tells the hardware what to do. The operating system, like Windows or macOS, is system software that manages basic tasks. Application software includes programs such as web browsers, games, and word processors. Without software, hardware is just a collection of metal and plastic; without hardware, software has nothing to run on.
硬件指的是计算机中可以触摸的物理部件：屏幕、主板、硬盘、内存和线缆。软件是指示硬件做什么的一系列指令。像 Windows 或 macOS 这样的操作系统是管理基本任务的系统软件。应用软件则包括网页浏览器、游戏和文字处理器等程序。没有软件，硬件只是一堆金属和塑料；没有硬件，软件则无处运行。
Try opening up an old, broken gadget with an adult's permission and see if you can identify parts like the battery, circuit board, and screen connector. Sketch what you see and label the hardware components you recognise.
在成年人允许的情况下，试着拆开一个旧的、坏掉的小装置，看看你能不能识别电池、电路板和屏幕连接器等部件。画出你所看到的东西，并标注你认识的硬件组件。
5. Binary: The Language of Computers | 二进制：计算机的语言
Inside every computer, all data—numbers, text, pictures, sound—is stored and processed using only two symbols: 0 and 1. This is called binary. A single binary digit is a 'bit', and eight bits make one 'byte'. You can convert small decimal numbers into binary by thinking about place values. The rightmost column represents 1, then 2, 4, 8, 16, and so on, doubling each time. To make the number five, for example, you need a 4 and a 1: in binary, 5 is written 101.
在每一台计算机内部，所有的数据——数字、文本、图片、声音——都只使用两个符号来存储和处理：0 和 1。这被称为二进制。一个单独的二进制数字是一个“位”，八位构成一个“字节”。你可以通过考虑位值来将较小的十进制数转换为二进制。最右边的列代表 1，然后是 2、4、8、16，依次翻倍。例如，要表示数字五，你需要一个 4 和一个 1：在二进制中，5 被写成 101。
Practise counting to fifteen in binary using four bits. Write 0000, 0001, 0010, 0011, and so on up to 1111. This helps you see the pattern and understand why binary is used in electronics, where a circuit can simply be on (1) or off (0).
使用四位二进制练习从零数到十五。写出 0000、0001、0010、0011，一直到 1111。这有助于你看到规律，并理解为什么二进制被用于电子设备——因为一个电路可以简单地是开 (1) 或关 (0)。
6. Introduction to Algorithms | 算法入门
An algorithm is a precise sequence of steps that solves a problem or completes a task. Recipes, LEGO building guides, and directions from one place to another are all everyday algorithms. In Computer Science, algorithms must be clear, unambiguous, and step-by-step. They often include condition (if this, then that) and repetition (repeat until). The key idea is to break a big problem into smaller, manageable parts—something we call decomposition.
算法是解决一个问题或完成一项任务的一系列精确步骤。食谱、乐高搭建指南以及从一个地方到另一个地方的路线都是日常的算法。在计算机科学中，算法必须清晰、明确且分步进行。它们常常包含条件（如果这样，就那样）和重复（重复直到）。核心理念是将一个大问题分解成更小、可管理的部分——我们称之为分解。
Write an algorithm for making a jam sandwich. Be extremely specific, because a computer follows instructions literally and will do exactly what you say, not what you mean. Then ask a family member to follow your algorithm exactly. You will probably see hilarious mistakes that teach you the importance of detail.
写一个制作果酱三明治的算法。要极其具体，因为计算机会按字面意思执行指令，它会完全按照你说的去做，而不是按照你心里想的去做。然后让一位家庭成员精确地遵循你的算法。你很可能会看到极其可笑的错误，这能教你细节的重要性。
7. Flowcharts and Pseudocode | 流程图与伪代码
When planning a program, we use diagrams and shorthand to map out our algorithms before coding. A flowchart uses standard symbols: an oval for 'Start' and 'Stop', a rectangle for a process or instruction, a diamond for a decision (a yes/no question), and arrows to show the flow. Pseudocode is a way of writing out an algorithm using simple English-like statements but with a structure that resembles real code.
在规划程序时，我们在编写代码之前会用图表和简写来勾勒算法。流程图使用标准符号：椭圆形表示“开始”和“结束”，矩形表示一个过程或指令，菱形表示一个判断（是/否问题），箭头则显示流程。伪代码是一种用简单的、类似英语的语句来编写算法的方式，但其结构类似于真实的代码。
Try drawing a flowchart for your jam sandwich algorithm. Use a decision diamond for questions like 'Is the jam jar open?' and arrows that loop back until the answer is 'yes'. Then rewrite the same algorithm in pseudocode using words like IF, THEN, ELSE, and REPEAT. This two-step process is a crucial skill in Year 7.
尝试为你的果酱三明治算法绘制一个流程图。对于像“果酱罐打开了吗？”这样的问题，使用判断菱形，并用箭头循环回去，直到答案是“是”为止。然后用 IF、THEN、ELSE 和 REPEAT 等词语将同一个算法改写成伪代码。这个两步过程是七年级的一项关键技能。
8. Programming with Scratch | 使用 Scratch 编程
Scratch is a block-based programming language developed by MIT, and it is the perfect first language for Year 7 students. You snap together colourful blocks like puzzle pieces to build scripts that control characters (sprites). There is no need to memorise typed commands; you simply drag a 'move 10 steps' block, a 'play sound' block, or an 'if touching colour' block into the workspace. It introduces sequencing, loops, variables, and events in a visual, friendly way.
Scratch 是由麻省理工学院开发的一种基于积木块的编程语言，是七年级学生完美的第一门语言。你可以像拼图一样将彩色积木块拼接在一起，构建控制角色（精灵）的脚本。无需记忆键入的命令；你只需将“移动 10 步”积木块、“播放声音”积木块或“如果碰到颜色”积木块拖到工作区即可。它以可视、友好的方式介绍了顺序、循环、变量和事件等概念。
Over the summer, create a free account on scratch.mit.edu and follow the built-in tutorial to make a simple chase game. Add a score variable, include a timer, and experiment with backdrops. This hands-on tinkering builds your confidence and prepares you for half-term projects.
暑假期间，在 scratch.mit.edu 上创建一个免费账户，并按照内置教程制作一个简单的追逐游戏。添加一个得分变量，包含一个计时器，并尝试更换背景。这种动手摆弄的过程能建立你的信心，并为半学期项目做好准备。
9. Problem-Solving and Debugging | 问题解决与调试
No programmer writes perfect code on the first try. Finding and fixing errors, called bugs, is a normal and valuable part of learning. Debugging means systematically testing your program, reading the error messages, and checking your logic step by step. Often a bug is just a misplaced block, a missing condition, or a spelling mistake in a variable name. Staying patient and curious is far more important than getting it right immediately.
没有哪个程序员能在第一次尝试时就写出完美的代码。发现并修正错误（称为 bug）是学习中正常且很有价值的一部分。调试意味着系统地测试你的程序、阅读错误消息，并一步步检查你的逻辑。bug 往往只是一块放错位置的积木、一个缺失的条件或变量名的拼写错误。保持耐心和好奇心，远比立即做对重要得多。
Set yourself a debugging challenge: ask a friend or family member to break your Scratch game slightly by removing one block or changing a number, then see if you can spot and fix the problem in under five minutes. This game makes you a sharper debugger.
给自己设置一个调试挑战：让朋友或家人稍微破坏你的 Scratch 游戏，比如移除一个积木或改变一个数字，然后看你能不能五分钟内发现并修复问题。这个游戏会让你成为一名更敏锐的调试员。
10. Looking Ahead: Year 7 Key Topics | 展望：七年级关键主题
Your AQA-inspired Year 7 course will introduce a broad range of topics that build on the foundation we have started. You will dive deeper into data representation, exploring how text is encoded using ASCII and how images are stored as pixels. You will learn about computer networks, including how the school network and the wider internet operate. You may also design databases, create websites with HTML, and explore how software is developed through the problem-solving cycle.
你基于 AQA 框架的七年级课程将介绍一系列广泛的课题，这些课题建立在我们已经打下的基础上。你将更深入地学习数据表示，探索文本如何使用 ASCII 编码，以及图像如何作为像素存储。你将学习计算机网络，了解学校网络和更大的互联网如何运作。你还可能设计数据库、使用 HTML 创建网站，并探索如何通过问题解决循环来开发软件。
To stay ahead, keep a tech diary this summer: one entry per week about an interesting app, website, or piece of tech news and what you think its underlying computer science might be. This habit sharpens your curiosity and gives you plenty to talk about when classes begin. Welcome to the world of Computer Science—you are going to create amazing things.
为了保持领先，今年暑假坚持写一本技术日记：每周记一篇，内容关于一个有趣的应用、网站或科技新闻，以及你认为其底层的计算机科学可能是什么。这个习惯能增强你的好奇心，并让你在开课时有充足的谈资。欢迎来到计算机科学的世界——你将会创造令人惊叹的东西。
Published by TutorHao | Computer Science Revision Series | aleveler.com
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