Unit 3 The world of Science-【优学精讲】2024-2025学年高中英语必修第三册教用课件(外研版)

该高中英语单元复习课件围绕“公共Wi-Fi安全”主题，系统梳理公共Wi-Fi的类型、使用规范及风险防范要点，通过话题导入、分类解析和规则归纳，将核心词汇与实用策略串联，帮助学生构建“科学安全使用网络”的知识体系。 其亮点在于以真实生活情境为载体，通过“问题理解+词汇积累”活动设计，如针对公共Wi-Fi类型的段落主旨题、使用规范的要点归纳题，培养学生的语言理解与表达能力及批判性思维品质。分层设计满足不同学生需求，助力教师精准复习，有效巩固知识。

UNIT 3　The world of science 在公共场所使用无线网络可能会泄 露我们的个人信息，本文告诉我们应该如何避免这方面的风险。 　　Public Wi-Fi exists almost everywhere， from coffee shops to the hotels and airports you visit while travelling.Wi-Fi has made our lives easier， but it also carries security risks to the personal information we store on our laptops and smartphones. 英语·必修第三册（WY） 　　There are basically two kinds of public Wi-Fi networks： the secured and unsecured.An unsecured network can be connected to without any type of security feature like a password.And a secured network generally requires users to agree to certain legal terms， register an account， or type in a password before they connect to the network.It may also require a fee to gain access to the network. 　　Now let’s look at some dos and don’ts when we are using public Wi-Fi. 英语·必修第三册（WY） 　　Do connect to secured public networks if necessary.In the event that you’re unable to connect to a secured network， using an unsecured network is allowable temporarily if the connection requires some sort of registration. 　　Don’t access personal bank accounts or sensitive personal data on unsecured public networks.Even secured networks can be risky.Use your best judgement if you must access these accounts through public Wi-Fi. 英语·必修第三册（WY） 　　Don’t leave your laptop or smartphone unattended in a public place.Even if you’re working on a secured Wi-Fi network， that won’t stop someone from taking your things or looking at your devices. 　　Don’t shop online when using public Wi-Fi.Shopping online requires personal information like bank accounts.So shopping isn’t something you are supposed to do on an unsecured Wi-Fi network. 英语·必修第三册（WY） 　　Do turn off automatic connectivity.Most smartphones and laptops have automatic connectivity settings， which allow you to connect from one hotspot to the next easily.This is a convenient feature， but it can also connect your devices to networks you ordinarily would not use.To be on the safe side， keep these settings off， especially when you’re travelling in unfamiliar places. 英语·必修第三册（WY） 【理解】 1. What is Paragraph 2 mainly about？ ⁠ 2. What does the author advise us to do when we’re using public Wi- Fi？ ① ⁠ ② ⁠ ③ ⁠ The two basic kinds of public Wi-Fi networks. Avoid shopping online. Keep personal information hidden well. Stop someone from looking at our devices. 英语·必修第三册（WY） 【积累】 1. security n. 安全 2. basically adv. 基本上，大体上 3. register vt. 登记，注册 4. account n. 账户 5. unattended adj. 无人看管的 6. automatic adj. 自动的 英语·必修第三册（WY） 英语·必修第三册（WY） $