Unit 3 Computers Learning about Language 课件（共41张PPT）

(共41张PPT)
Unit 3
Computers

Learning about language
高一人教新课标版必修二
1 Find the word or expression for each of the following meanings from the text.
_________ complete change in ways
of thinking, working, etc.
2. ________ connected computer system
3. ________ to make things easier
4. ________ to find the answer using
numbers
calculate
simplify
revolution
network
Discovering useful words and expressions
5. _______ can be moved easily from place
to place
________ to work out the answer to a
problem
_______ to travel around an area to find
out about it
8. ______ completely
9. _______ anyway
10. _______ activity of managing money
finance
anyhow
totally
explore
solve
mobile
2 Complete the passage with the
words below.
Artificial technology
intelligent Web
applications explore
reality logically
My brother was very interested in computers and enjoyed writing programs of his own. He used to download information from the Internet and made good use of it. He liked to _______ the World Wide _____ and
explore
Web
used the Internet to communicate with computer programmers all over the world. When he went to university he studied IT (information __________) and developed a special interest in ________ intelligence. After developing special __________ of the computer, he hopes to design an _________ robot which
can think ________ and look like a human
being, but in ______ he has a long way to go.
technology
artificial
applications
intelligent
logically
reality
Grammar
The Present Perfect Passive Voice
现在完成时的动作或情况虽然发生在过去，但它强调的是与现在的关系，用来说明现在的情况。现在完成时不能与表示确定的过去时间的状语连用, 如: yesterday, two weeks ago, in 1978, when I got there 等, 现在完成时常与 already, always, often, ever, never, yet, not...yet, just等不表示明确
1. 现在完成时(have/has + 过去分词)
的时间副词连用, 还可以和表示时间一直延续到目前的带since, for 的状语及包括现在在内的词连用。如: now, today, this month, this year, recently, these few days 等。不能用在现在完成进行时态的动词, 如: be, have, like, love, know, believe, hate等。
一般过去时则是表示过去某时发生的动作或情况, 与现在毫无关系。
现在完成时的被动语态表示动作发生在过去, 到现在已经完成或对现在仍有影响, 其构成是: have/has been + done。如：
1. The dirty clothes have been washed.
脏衣服都已经洗了。
2. The plan has been studied by the
experts for three times.
这项计划已经由专家研究过三次了。
2.现在完成时的被动语态
3. The child has been taken care of by Grandma Wang all these years.
这些年来, 这个小孩一直由王奶奶照料。
现在完成时被动语态：
have / has? + been + 动词过去分词
现在完成进行时：
have / has + been + 动词现在分词
注意:
副词的位置
often, usually, always, never, hardly,
seldom等副词置于have/has和been中间。
如: [误] Such a man has been hardly
believed.
[正] Such a man has hardly been
believed.
1. I got caught in the rain and my
suit _______.
A. has ruined
B. had ruined
C. has been ruined
D. had been ruined
C
高考链接
2. Professor James will give us a lecture
on the Western culture, but when and
where ___ yet.
A. hasn’t been decided
B. haven’t decided
C. isn’t being decided
D. aren’t decided
A
3. If Newton lived today, he would
be surprised by what _____ in
science and technology.
A. had discovered
B. had been discovered
C. has discovered
D. has been discovered
D
4. Cathy is taking notes of the
grammatical rules in class at
Sunshine School, where she _____
English for a year.
A. studies
B. studied
C. is studying
D. has been studying
D
5. With the help of high technology,
more and more new substances
____ in the past years.
A. discovered
B. have discovered
C. had been discovered
D. have been discovered
D
6. When you get the paper back, pay
special attention to what _____.
A. have marked
B. have been marked
C. had marked
D. had been marked
B
一、单项选择
1.?Both my brother work at the power station that ___ in my hometown.
A. has set up B. has been set up
C. was set up D. is set up
2.?---_____ the sports meet will be put off.
A. I’ve been told B. I’ve told
C. I’m told D. I told
B
A
3. All the preparation for the task ____, and we’re ready to start.
A. completed
B. complete
C. had been completed
D. have been done
D
4. ---- How long ____ at this job?
---- Since 1990.
A. were you employed
B. have you been employed
C. had you been employed
D. will you be employed
B
5.?When and where to go for the on-salary holiday ____ yet.
A. are not decided
B. have not been decided
C. is not being decided
D. has not been decided
D
6. Betty____ injured since last Saturday. A. has been 　　
B. was C. is 　　　　　
D. has
A
7. That book _______ into at least 20 foreign languages.
?A. has said to be translated
?B. has been said to have translated
?C. is said that it had been translated
?D. is said to have been translated
注:该句的句型是:It is said that…/people (they) said that…/that book is said to …根据句意是已经被译成了20 多种文字所以要用现在完成时的被动语态。
D
8. – Hi, Tom, you look tired.　
? -- Of course. I ___ the living room
all day.
A. had painted B. painted
? C. have been painted 　　　
D. have been painting
D
9. --Did you move into the new house?
-- No. The rooms ___ yet.
A. were being painted
B. are painting
C. have not painted
D. have not been painted
D
10. Great changes___ in my hometown and a lot of factories ___.
A. have been taken place;
are being set up
B. have taken place; have been set up
C. are taken place; had been set up
D. took place; will set up
B
11. It’s said that this book___ into Chinese.
A. had translated B. has translated
C. was translated D. has been translated
12. You can’t move in .The house _____.
A. is painting B. is being painted
C. has painted D. has been painted
D
B
13. Millions of pounds’ worth of damage___ by a storm which swept across the north of England last night.
A. has been caused
B. had been caused
C. will be caused
D. will have been cause
A
14. Have you ever___ to the exhibition which ___ for three weeks?
A. gone; has been shown
B. visited; shown
C. been; has been on show
D. went; lasted
C
15. ---How long ago ___ these eggs___?
--- Perhaps 15 days.
A. will; hatch
B. did; hatch
C. were; hatched
D. have; been hatched
C
二、改错
1. A personal computer has bought by us.
A personal computer has been bought
by us.
2. Many problems has been found with our new computer.
Many problems have been found with
our new computer.
3. A PC has been builded the way we wanted.
A PC has been built the way we wanted.
4. Our computer just has been joined to the internet.
Our computer has just been joined to the internet.
5. The computer was used every day since we bought it.
The computer has been used every day since we bought it.
6. A lot of e-mails had written on the computer in the past 5 years.
A lot of e-mails have been written on
the computer in the past 5 years.
三、用动词正确形式填空。
1. First as a PC and then as a laptop, I
_______________ (use) in offices and
homes since the 1970s.
2. Over time my memory ______________
(develop) so much that, like an elephant,
I never forget anything I
__________________(told).
3. Since the 1970s many new applications
__________________ (find) for me.
have been used
has developed
have been told
have been found
4. I have also ___________(put) into
robots and used to make mobile phones
as well as _________(help) with medical
operations.
5. I ____________________(put) into
space rockets and sent to explore the
Moon and Mars.
been put
help
have even been put
四、用被动语态改写下列句子。
They have finished the construction of
the new railway lines by now.


2. We have built a new library and a
gymnasium in our school this year.
The construction of the new railway lines
has been finished by them by now.


A new library and a gymnasium have
been built in our school this year by us.
3. The car factory has produced a great many fine cars since the technological revolution.
A great many fine cars have been produced by the car factory since the technological revolution.
4. They have made a plan to help the poor
children in the poor area.


5. The government has spent a lot of
money on the Hope Project.
A plan has been made by them to help the
poor children in the poor area.



A lot of money has been spent on the Hope
Project by the government.
Homework
Try to remember the grammar rules and do exercises 1, 2 and 3 on page 21.
Homework :