北师大版（2019)必修第二册Unit4 Information technology Lesson 2 课件(共27张PPT)

(共27张PPT)
UNIT 4
INFORMATION TECHNOLOGY
Lesson 2 APPS
To read and talk about apps and their uses
To listen for understanding
To recall information preciously heard
To ask for and offer help
What 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 tickets
to book accommodation
to order food
to find directions
to learn a language
to check the weather
to look for popular restaurants
to subscribe to newspapers and magazines
Before 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 powerful
to be useful
to make life easier
to solve real-world problems
to enjoy learning activities
to find what people need
to use the latest technology
VR (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 Builder
Listening for Key Words
1 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.
Apps General functions find popular restaurants
Uses 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 materials
Apps Difficulties in developing an app
find out what people need
solve real-world problems
Answer 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 haven’t arrived.
Asking for and offering help
Asking for and Offering Help
Asking for help
1 ____________________ with something
2 _______________________ set up an account.
3 I haven’t received the goods. _________________
________ and find out what’s going on
4 ____________________ check again
Listen and plete the Talk Builder.
Can you help me out
I can’t figure out how to
Can you do me a
Would you be able to
Talk Builder
favor
Offering help
1 _________________ 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 help
I can help you
How may I
Let me
Can I assist you with
Talk Builder
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 don’t 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 app
Student B: the son/ daughter offering to help
Student A: a teenager preparing for a party
Student B: a friend offering to help to buy things online for Student A
Do 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; 订购
【归纳】
subscribe to 同意，赞成
subscriber n. 订阅者; 订户; 用户
subscription n. 订阅, 订购; 订阅费; 用户费
e.g. subscribe to the view/belief/theory
赞同观点/信条/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……
ensure vt. to make certain that something will happen properly 确保, 保证
【搭配】
ensure the safety of 确保……的安全
ensure (that) … 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】根据括号内的汉语提示补全下面句子。
1) Please __________________________________ (确保将所有灯都关掉).
2) These pills should ___________________________ (确保你睡一宿好觉).
ensure you a good night’s 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？
confirm vt. to state or show that sth. is definitely true or correct, especially by providing evidence
确认; 证实
【搭配】
confirm sb. in sth. 使某人确信某事
confirm sb. in one’s belief/opinion/view/suspicion
证实某人的信念/观点/看法/ 怀疑
confirm that… 证实……
It is confirmed that … 确认……
e.g.
New evidence has confirmed the first eyewitness’ story.
Research has confirmed that the risk is higher for women.
【链接】
confirmed adj. 已被证实的
confirmation n. 确认书; 证实, 证明
【语境应用】根据括号内的汉语提示补全下列句子。
1) Please _______________________________ (证实你在电话中传达的消息) by writing to me.
2) My wife will ______________________________ (证实我是准时到达的).
3) The walk in the mountains ______________________
___________ (使他更确信自己有恐高症).
confirmed his fear of
confirm your telephone message
confirm that I was there on time
heights
Write a short passage in 80 words to introduce some interesting and useful apps.