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Word(外研版)

该高中英语单元复习讲义围绕“公共Wi-Fi安全使用”主题，通过分类梳理与要点归纳构建知识体系，用框架图呈现公共Wi-Fi的两种类型（安全与不安全）及特征，表格归纳使用规则（do/don't），并突出安全风险防范这一重难点，词汇积累部分按词性分类呈现核心词汇。 讲义亮点在于“问题导向”的练习设计，如“理解”部分通过段落主旨题（如问第二段主要内容）培养信息归纳能力，细节理解题（如问使用建议）训练思维品质，词汇积累助力语言能力提升。规则清晰的do/don't指南帮助学生掌握安全策略，支持不同层次学生自主复习，教师可据此实施精准教学。

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. 　　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. 　　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. 　　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. 　　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. 【理解】 1.What is Paragraph 2 mainly about？ 　The two basic kinds of public Wi-Fi networks.　 2.What does the author advise us to do when we’re using public Wi-Fi？ ①　Avoid shopping online.　 ②　Keep personal information hidden well.　 ③　 Stop someone from looking at our devices.　 【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 2 / 2 学科网（北京）股份有限公司 $