课件16张PPT。Unit 4 Computers CD-ROM/DVD-ROM
drive
flash disc
keyboard
main unit
monitor
mouse
screen
speakersabcdefghiReviewBrainstormingWhat do you think of computers ? Why?I think computers are ___________.
I usually use my computer to ____________________.Look up some informationvery usefulComputer factsIs a computer cleverer
than I am?Talk to your computerCD-ROMs/DVD-ROMsWhat kind of jobs can
a computer do?Smaller and smallerSkimmingMatch the picture with its correct name.A. the first computersC. desktop computersB. laptop computersD. palmtop computers/'deskt?p //'l?pt?p//'pɑ:mt?p/Computers are becoming___________________.smaller and smallerthe first computersDesktop computerslaptop computerspalmtop computers Read Part 1 and complete the table.Computers have become smaller and smaller.bigger than carsthe size of televisionsthe size of big bookssmall enough to put in your pocket like a bar of chocolateso tiny that you may be unaware of themWhat kind of jobs
can a computer do?Read Para.2 and think _________fast and rarely give wrong answers
______,_____ and _____ things
______ you and _________________you
________railways
___ aeroplanes and spaceshipscalculatetype play games withfunctions of computersprintdrawteachoperateflyRead Para.21. How can we talk to our computer?
2. What are the functions(功能) of DVD-ROMS?Computers can recognize your voice,obey your commands and write your letters.We can buy a program which helps computers recognize our voice.DVD-ROMs can hold millions of pages of writing, contain pictures, videos and sounds.electronic brain Read Part 4 & 5 and answer:Is a computer cleverer than I am?
VSelectronic brainhuman brainRead part 3 and have a discussionIs a computer cleverer than a man?
If not, why?
If so, what will happen to us?
Our brain can understand
_________________________
and__________________.
the meaning of things better create new ideasRetell size: desktop laptop palmtop
fun_ction: calculate/ type/ print/ draw/ teach/ play / operate/ fly/ recognize/ obey/ write/ hold/ containGroup DiscussionWhat kind of computer would you like to have in the future?
(size, shape, brand, fun_ction, etc)
Read the text for at least three times.
Written work:
To design your ideal computers and write a passage about it.Oral(口头) work:
HomeworkThank you!