Unit4 Lesson 2 （ppt课件）-2023新北师大版（2019）《高中英语》必修第二册.pptx

To read and talk about apps and their usesTo listen for understandingTo recall information preciously heardTo ask for and offer helpWhat apps do you have on your cellphones or on your computers/laptops?What apps do you often use?What do you use them for?Use the phrases below to help you make notes.to book ticketsto book accommodationto order foodto find directionsto learn a languageto check the weatherto look for popular restaurantsto subscribe to newspapers and magazinesBefore listening to an interview with an app developer,read and answer the questions.Use the key words to help you.Then listen and check.1 Why are apps so popular?2 What are the difficulties in developing an app?3 What are the latest technologies used in apps?to become powerfulto 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)Listening for key words helps you understand the conversation better and find 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.Skill BuilderListening for Key Words1 Why are apps so popular?2 What are the difficulties in developing an app?3 What are the latest technologies used in apps?Apps are popular because they are useful and make life easier.The difficulty is in solving real-world problems and finding what people need.The latest technologies used are VR(Virtual Reality),AR(Augmented Reality)and MR(Mixed Reality).Listen again.Complete the information.AppsGeneral functions find popular restaurantsUses of educational apps call for taxis find directions to different places allow students to choose their online teachers and subjects according to their personal interests and needs ensure that students can all enjoy the same learning materialsAppsDifficulties in developing an app find out what people need solve real-world problemsAnswer the questions using the information in Activity 3 to help you.1 What are some general functions of apps?2 What can students do with educational apps?General functions include:to find popular restaurants,call for taxis,find directions to different places,and so on.Students can choose their online teachers and subjects according to their personal interests and needs on educational apps.3 According to Li Xing,what are the difficulties in developing an app?4 If you are able to develop an app to solve a real-world problem,what problem would you like to solve?And how?The difficult thing about developing apps is finding out what people need and solving real-world problems.Listen to two conversations.What help does Dad ask for in the first conversation?What help does Barbara Smith ask for in the second conversation?Dad asks for help in setting up an account on a shopping app.The woman asks for help in finding out why her goods havent arrived.Asking for and Offering Help Asking for help 1 _ with something?2 _ set up an account.3 I havent received the goods._ _ and find out whats going on?4 _ check again?Listen and imitate.Complete the Talk Builder.Can you help me outI cant figure out how to Can you do me aWould you be able to favorOffering help1 _ downloading it?2 No worries._ with that.3 _ help you?4 _ enquire about the order with the delivery man.5 _ anything else today?Do you need helpI can help youHow may I Let me Can I assist you with Look at the Talk Builder.Pick out the expressions that are formal/informal and explain why.when talking to a family member,the conversation is more informal;when talking to someone you dont know,the conversation is formal.Role-play the following situations.Note the formal/informal use of language.Student A:a mother who wants to choose an appStudent B:the son/daughter offering to helpStudent A:a teenager preparing for a partyStudent B:a friend offering to help to buy things online for Student ADo your parents/grandparents use any apps?Do they ask you to teach them how to use some apps?How would you offer help?Share an experience with us.1.to subscribe to newspapers and magazines subscribe vi.to pay an amount of money regularly in order to receive or use sth 订阅订阅;订购订购 【归纳归纳】subscribe to 同意同意，赞成，赞成 subscriber n.订阅者订阅者;订户订户;用户用户 subscription n.订阅订阅,订购订购;订阅费订阅费;用户费用户费 e.g.subscribe to the view/belief/theory 赞同观点赞同观点/信条信条/理论理论2.They also ensure that students can all enjoy the same learning materials 他们还确保学生们都能享用相同的学习材料他们还确保学生们都能享用相同的学习材料 ensure vt.to make certain that something will happen properly 确保确保,保证保证 【搭配搭配】ensure the safety of 确保确保的的安全安全 ensure(that)确保确保 e.g.The airline is taking steps to ensure safety on its aircraft.If you want to ensure that you can catch the train,leave early.【语境应用语境应用】根据根据括号内的汉语提示补全下面句子。括号内的汉语提示补全下面句子。1)Please _(确确保将所有灯都关掉保将所有灯都关掉).2)These pills should _(确保你睡一宿好觉确保你睡一宿好觉).ensure you a good nights sleep ensure that all lights are switched off 3.Would you like me to confirm my account details?您要让我确认一下我的帐户详情吗？您要让我确认一下我的帐户详情吗？confirm vt.to state or show that sth.is definitely true or correct,especially by providing evidence 确认确认;证实证实 【搭配搭配】confirm sb.in sth.使某人确信某事使某人确信某事 confirm sb.in ones belief/opinion/view/suspicion 证实某人的信念证实某人的信念/观点观点/看法看法/怀疑怀疑 confirm that 证实证实 It is confirmed that 确认确认 e.g.New evidence has confirmed the first eyewitness story.Research has confirmed that the risk is higher for women.【链接链接】confirmed adj.已被证实的已被证实的 confirmation n.确认书确认书;证实证实,证明证明【语境应用语境应用】根据根据括号内的汉语提示补全下列句子。括号内的汉语提示补全下列句子。1)Please _(证实你在证实你在电话中传达的消息电话中传达的消息)by writing to me.2)My wife will _(证证实我是准时到达的实我是准时到达的).3)The walk in the mountains _ _(使他更确信自己有恐高症使他更确信自己有恐高症).confirmed his fear of confirm your telephone messageconfirm that I was there on timeheightsWrite a short passage in 80 words to introduce some interesting and useful apps.