人教版高中英语必修2 Unit 3 Computers reading Who Am I?课件(共19张PPT)

课件19张PPT。Unit 3 Computers
Who Am I? With the development of science and technology, many new things appear in our life.Let’s play a guessing game! I am very old now. I was born in China. Many people used me for calculating in the past, but now I am a bit lonely because they don’t like me now.
Do you know who I am?abacusHave a guess I am very small. I can be used for calculating. A lot of students use me when solving mathematical problems.
Do you know who I am?calculator It is a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your friends, gather information… computerHow much do you know about the computer?main unitmousekeyboardmonitorspeakersheadsetdrivesCD-ROMsReading StepsScan扫读 to find the outlineSkim略读to find the key informationSummarize概括the main ideaFind some writing skillsPredicting Who am I? 1. Scan扫读 to find the outlineOver time, I have been changed quite a lot.
These changes only became possible as my memory improved.
Many new applications have been found for me.
Topic sentence2. Skim略读 to find the key words Para1: in what order(顺序）？a calculating machine计算机器simplify difficult sumsan analytical machine分析机Time Order1642182219361940s1970sa universal machine 通用机器think logically and produce an answer quicklysolve any difficult mathematical problem a huge computer a PC and then a laptop used in offices and homesPara. 22. Skim略读 to find the key words How did the memory improve?Memory improvementChip 芯片Transistor晶体管Tube 电子管My size has grown______________ but my memory has become_________.smallerlarger/strongernetworkThe computer has a family connected by a ____________.The World Wide Web communications
finance
trade
robots
mobile phones
medical operations
space rockets
exploring the Moon and MarsAnyhow, my goal is to _______.2. Skim略读 to find the key words Para3: What new applications?provide humans with a life of good quality.Skill1:topic sentence +details （主旨+支撑细节）
What is the structure of each paragraph?
3. Find some writing skillsPara3:
Since the 1970s many new applications have been found for me. I have become very important in communication, finance and trade. I have also been put into robots and used to make mobile phones as well as help with medical operations. I have even been put into space rockets and sent to explore the Moon and the Mars. Anyhow, my goal is to provide humans with a life of high quality.Topic SentenceSupporting detailsPara2:
First it was stored in tubes, then on transistors and later on very small chips. As a result I totally changed my shape. As I have grown older I have also grown smaller. Over time my memory has developed so much. And my memory became so large that I couldn’t believe it! But I was always so lonely…Make your writing more logical有逻辑的3. Find some writing skillsSkill2: Linking words （连词）
1. Name : computer
Born : (time)_______ (place) __________
2.My change: size: from______ to___
1642 ___________machine
1822__________machine
1936 __________machine
1970s _______ and ______
3.My memory: _____ ______________ _____
4.My applications: _______________; ________;
_______________; ________;
_______________; _____________;
1642France analytical calculatinguniversallaptopPCtubestransistorschipscommunicationfinancerobotmobile phonemedical operation...trade4. Summarize概括the main idea bigsmallMy name is computer, a machine that was born in 1642 in France. In the past, I was large. However, I have been changed over time and became smaller. In 1642, I was a calculating machine, then in 1822 I became an analytical machine , later I was a universal machine at last a PC or a laptop. The changes were the result of my memory improvement.Nowadays, I have been applied in many fields, such as communication, finance, trade, robot, medical operation and so on.My name is computer, a machine that was born in 1642 in France. In the past, I was large. However, I have been changed over time and became smaller. In 1642, I was a calculating machine, then in 1822 I became an analytical machine , later I was a universal machine at last a PC or a laptop. The changes were the result of my memory improvement.Nowadays, I have been applied in many fields, such as communication, finance, trade, robot, medical operation and so on.Language points计算机
分析机
通用机
简化计算
有逻辑性地思考
被认为是…
科技革命
人工智能
从什么时候开始
私人电脑calculating machine
analytical machine
universal machine
simplify difficult sums
think logically
be considered as sth.
technological revolution
artificial intelligence
from… on…
personal computerLanguage points随着时间的流逝
结果是
如此…以至于…
连接网络
高质量生活
为某人提供某物
我的目标是做某事
忠实的伙伴
人类 as time goes by
as a result
so… that…
be connected by a network
a life of high quality
provide sb. with sth.
My goal is to do sth.
a devoted friend
human race