nit 4 Information technology Lesson 2 Apps课件-高中英语北师大版（2019）必修第二册.pptx

Lesson 2 APPSActivate and shareWhat apps do you often use?What do you use them for?Use thephrases below to help you make notes.to book ticketsto book accommodation to order foodto find directionsto learn a languageto check the weatherto look for popular restaurantsto subscribe to newspapers and magazinesListen for understandingBefore listening to an interview with an app developer，read and answer the questions.Use the key words to help you.Then listen and check.1Why are apps so popular?2What are the difficulties in developing an app?3What are the latest technologies used in apps?to become powerful to be usefulto make life easierto solve real-world problemsto enjoy learning activitiesto find what people needto use the latest technologyVR（Virtual Reality）AR（Augmented Reality）MR（Mixed Reality）Skill BuilderListening for Key WordsListening for key words helps you understand the conversation better andfind the answers to questions more quickly.Before listening，read the questions carefully.While listening，pay attention to the words related to the questions，e.g.popular，difficulties，latest technologies.Listen for words that are stressed.1Why are apps so popular?2What are the difficulties in developing an app?3What are the latest technologies used in apps?1 Apps are popular because they are useful and make life easier.2 The difficulty is finding out what people need and solving real-world problems.3 The latest technologies used are VR（Virtual Reality），AR（Augmented Reality）and MR（Mixed Reality）.Listen again.Complete the information.AppsGeneral functionsfind popular restaurantscall for taxisfind directions to different placesAppsUses of educational appsallow students to choose their online teachers and subjects according to their personal interests and needsensure that students can all enjoy the same learning materialsAppsDifficulties in developing an appfind out what people need solve real-world problemsAnswer the questions using the information in Activity3 to help you.1What are some general functions of apps?2What can students do with educational apps?3 According to Li Xing，what are the difficulties in developing an app?4If you are able to develop an app to solve a real-world problem，what problem would you like to solve?And how?1.General functions：find popular restaurants，call for taxis，find directions to different places，and so on.2.Students can choose their online teachers and subjects according to their personal interests and needs on educational apps.3.The difficult things about developing an app are finding out what people need and solving real-world problems.Listen and imitate.Complete the Talk Builder.Asking for help：1 Can you help me out2 I cant figure out how to3 Can you do me a favour4 Would you be able toOffering help：1 Do you need help2 I can help you3 How may I4 Let me5 Can I assist you withwhile listening“连词+分词（短语）”结构，是状语从句 while you are listening 的省略形式。教材原句教材原句p.12 While listening,pay attention to the words related to the questions.while doing 构成的省略句构成的省略句在时间、条件、让步、方式状语从句中，如果从句主语与主句主语一致或从句主语是 it，且从句谓语中含有 be 动词时，可以将从句中的主语和 be 动词一起省略，构成“连词+分词/形容词/介词短语/名词（短语）”结构。【记忆口口诀】主从主语一致时，从句含有 be 动词；为了简练皆省去，剩下表语或分词。While walking in the park，I saw a variety of beautiful flowers.在公园散步时，我看到了各种各样美丽的花。If invited，I will attend the party.如果被邀请，我将参加这次聚会。If possible，I will pay a visit to the great palace tomorrow.如果可能的话，我明天将去参观那个巨大的宫殿。单句语法填空单句语法填空（1）While （compete）with his teammates，he hurt his leg.（2）If（accept）for the job，youll be informed soon.（3）There are some health problems that，when not（treat）in time，can become bigger ones later petingacceptedtreated完成句子完成句子（4）当被问及为什么没参加这次赛跑时，他什么也没说，只是微笑了一下。why he didnt take part in the race，he said nothing but smiled.（5）如果有必要，我可以马上来。，I can come immediately.（6）虽然很失望，但他假装不在意。，he pretended not to care about.When askedIf necessaryAlthough/Though disappointed