人教版高一英语必修二《Unit3-Computers-》课件.ppt--（课件中不含音视频）

1、人教版高一英语必修二人教版高一英语必修二Unit 3 Computers Reading1.Who is the speaker in this story?A.A computer B.A person2.What is the main idea of this passage?A.Computers may replace human beings.B.The development and applications of computers.I I.Fast-readingFast-reading1.Read the first paragraph and finish the fol

2、lowing two tasks.Task Answer the question:What is the topic sentence of this paragraph?II.Careful-readingII.Careful-readingOver time I have been changed quite a lot.TimeEvents1642The computer began as a _About 1822The computer was built as an _From 1936 onThe computer grew rapidly both in _and in _B

3、y the 1940sThe computer had grown _Since the 1970sThe computer has been used in _calculating machine.as large as a room.offices and homes.analytical machine Task Finish the chartsizebrainpower2.Read the second paragraph and finish the following two tasks.Task Answer the question:What is the topic se

4、ntence of this paragraph?These changes only became possible as my memory improved.Task Choose the best answers.1.According to the passage,the computer has grown smaller mainly because_.2.A.it uses good materials3.B.it was too large in the past 4.C.its memory has improved a lot5.D.there is less room

5、in the earth2.What happened to the computer in the 1960s?A.It became as large as a room.B.It was given a family connected by a network.C.It began to be used in the offices.D.It began to be put into space rockets.3.Read the third paragraph and finish the following two tasks.Task Answer the question:W

6、hat is the topic sentence of this paragraph?Since the 1970s many new applications have been found for me.Task True or false1.Computers can be used to make mobile phones now.2.Since the 1960s,the computer has been used to help with medical operations.3.Computers can solve all the problems of human be

7、ings.TFF1970snotI _(begin)as a calculating machine in 1642.With time _(go)by,I have been made cleverer and _(small).My memory has become _ large that I cant believe it.But I cant forget the time _ I was so lonely standing there by myself.Until in _ 1960s,they gave me a family connected by a network.

8、So I was able to share my knowledge _ others.Since the 1970s,many new applications _(find)for me.I have become very important _ communication,finance and trade.Anyhow,my goal is to provide humans with a life _ high quality.Further reading Further readingbegangoingsmallersowhenthewithhave been foundi

9、nof DiscussionDiscussionWhat are the advantages and disadvantages of using computers?advantagesSearch for information quickly send e-mailsshop online make new friends easily disadvantagesbe harmful to our healthgive away our personalinformation give false or unhealthy informationwaste timeA computer is a double-edged sword(双刃剑双刃剑).Use it properly！Homework：Write an article about how to use the computer properly.