(共26张PPT)
The Present Perfect Passive Voice
Talk about something that has been done
Learning Objectives
1. Understand the present perfect passive voice ;
2.Distinguish the form, function and meaning of active and passive voice this tense;
3.Use the tense to describe the online activities.
Lead-in
Part 1
Watch a video and answer: What has changed Mary's family life What has been mentioned in the video
Encyclopaedia
Search engine
Mary's father ___________ (use) the search engine since it was invented.
has used
The search engine _________________ (use) by Mary's father to refer to information since it was invented.
has been used
Video disk
stresm video
So far, the video disk _________________ (replace)by stresm video.
has been replaced
So far, the stresm video _________________ (replace) the video disk.
has replaced
Tape
Music app
By now, the music app _____________ (replace) the tape.
By now, the tape ___________________ (replace) by the music app.
has replaced
has been replaced
The Internet has greatly improved Mary's life.
the Internet.
Mary's life
has been greatly improved by
主语
谓语
宾语
The Internet
has greatly improved
Mary's life
宾语
主语
谓语变被动
Verb form
Active
Passive
have / has + been + done
How do we form the present perfect passive voice
Fill in the blank.
have /has + done
Let’s observe and learn.
Mary's life also has been changed in following aspects.
In the past, people paid in cash. But by now, the way of payment _______________________ (change).
has been changed
Mary's life also has been changed in following aspects.
In the past, people wrote letters to their friends. But by now, it __________________ (change).
has been changed
People's life has been greatly improved by the Internet.
People's life has been changed by online communities and the social networks.
Summary
Enhancing understanding
Part 2
肯定句：The goods have been bought online.
否定句：The goods have not been bought online.
一般疑问句：Have the goods been bought online
特殊疑问句：When have the goods been bought online
Look at the pictures, first list some key words, then make up sentences using the present perfect passive voice.
machine
replace
computer
The machine has been replaced by the computer.
Look at the pictures, first list some key words, then make up sentences using the present perfect passive voice.
肯定句：The machine has been replaced by the computer.
一般疑问句：Has the machine been replaced by the computer
否定句：The machine has not been replaced by the computer.
特殊疑问句：How has the machine been replaced by the computer
肯定句：The datas have been collected through the Internet.
否定句：The datas have not been collected through the Internet.
一般疑问句：Have the datas been collected through the Internet
特殊疑问句：When have the datas been collected through the Internet
Practicing
Part3
Notice to parents
Dear Parents,
We hope you will welcome this news. A local computer company___________(give) us almost 100 computers since the end of last year. A decision ____________(make) to begin a computer teaching experiment at our school. Our plan ________________(support) with technical equipment and advice which _______________(provide) by the City Information Technology Center. Our school ____________(provide) every teacher with a laptop since the beginning of this term.
More importantly, most of our courses ________________(teach) using computers. We ________________(help) in our teaching by a lot of information from the Internet. Also, a new computer room _______________(set up) in our school. We hope you will be happy with this exciting new development in our school.
No. 1 Senior High School
has been made
has given
has been supported
has been provided
has provided
have been taught
have been helped
has been set up
In what aspects has the Internet changed our life Think about the advantages and disadvantages of the Internet, and let's have a debate.(Use the present perfect passive voice)
Thinking and applying
Sample (P: Positive Side N:Negative Side)
P: To start with, my life has been greatly changed by the Internet. Now, I can write e-mail to my friends instead of sending letters. How convenient it is!
N: But I strongly believe that the Internet does more harm than good. The computer radiation affect our body, and so many diseases have been caused by it.
P: The Internet is just like a bridge of communication between people. Many of us have been connected by the Internet.
N: I don't agree with you. As we all know, ........
Positive
Side
Negative
Side
The Internet does more harm than good.
VS
The Internet does more good than harm.
Summary
Just as a coin has two sides. The Internet has both its advantages and disadvantages. What matters is not the Internet but how it is used.
Verb form
Active
Passive
have / has + been + v-ed
The present perfect passive voice
have /has + v-ed
Summary
Homework
Write a short passage about the advantages and disadvantages of the Internet.
Requirement: The present perfect passive voice should be involved.
