Today computers come ____(1)___ all shapes and sizes.There were still big computers for companies or universities. There are other special computers for factories. These large computers tell the fatory machines ___(2)___ to do. But there are also small ___(3)___ computers to use at home or in an office. There are even computers in telephones, television ___(4)___, and cars. These computers have to be small. They are so small that you cannot ___(5)___ see all their parts.

Computers are very useful, but they also can ____(6)___ problems. One kind of problems is with the computer's memory. It is not perfect so sometimes computers ___(7)___ important information. Another problem is with the machinery. Computers are machines, and machines can break down. When the computers break down, they may ___(8)___ information, ___(9)___ chalk on a blackboard. Or they may stop doing anything at all. And there is ___(10)____ different kind of problem with computers. Some doctors say they may be bad for your health. They say you should not work with computers all day.

Exercise 6. Choose the word (a,b,c, or d) that best fits each of the blank speces.

Computers are very (31)_____ but they can also cause problems. One kind of problem is with the computer's memory. It is not perfect, so (32)_____ computers lose important information. (33)_____ problem is with the machinery. Computers are machines, and machines can break down. When computers break down, they (34)_____ erase information, like chalk on a blackboard. Or they may stop doing anything at all. And there is another different kind of problem with computers. Some doctors say they may be bad for your (35)_____ . They say you should computers all day.

31. A. useful B. careful C. helpful D. a & c

32. A. nearly B. hardly C. never D. sometimes

33. A. Other B. Another C. Some D. Many

34. A. may B. must C. should D. need to

35. A. health B. healthy C. healthful D. healthily

IV. Choose the word (a, b, c, or d) that best fits each of the blank spaces.
Computers are very (21)____, but they also can (22) _____ problems. One kind of
problem is with the computer’s memory. It is not perfect, so (23) ____ computers lose
(24)______information. (25)_____ problem is with the machinery. Computers are
machines, and (26)_____can break down. When computers break down, they
(27)______erase information, like chalk on a blackboard. Or they may stop doing
anything at all. And there is another different kind of problem with computers. Some
doctors say they may be bad for your (28)_____. They say you should computers all day.
21. a. Useful b. careful c. helpful d. a&c
22. a. make b. cause c. do d. take
23. a. nearly b. hardly c. never d. sometimes
24. a. boring b. interesting c. important d. amusing
25. a. Other b. Another c. Some d. Many
26. a. computers b. machines c. problem d. information
27. a. may b. must c. should d. need to
28. a. health b. healthy c. healthful d. healthily
V. Read the following passage and choose the item (a, b, c, or d) that best answers
each of the questions about it.
The first computers were very large machines. Now computers come in all shapes and
sizes. There were still big computers for companies or universities. There are other
special computers for factories. These large computers tell the factory machines what to
do. But there are also small personal computers to use at home or in an office. There are
even computers in telephones, television sets, and cars. These computers have to be very
small. They are so small you cannot even see all their parts.
29. The first computers were _______.
a. tiny b. huge
c. in all shapes and sizes d. all are correct
30. There are computers
a. for companies and universities
b. to use at home
c. in telephones, television sets, and cars
d. all are correct
31. What does the word ‘they’ in line 7 refer to?
a. telephones b. television sets
c. cars d. computers
32. What is the passage written about?
a. old computers b. modern computers
c. computers’ shapes d. computers’ sizes
33. Which of the following is true?
a. The first computers were very large.
b. Nowadays, there are only small computers.
c. All modern computers are so small that you cannot see all their parts.
d. Modern computers have the same size.

V. Complete the passage with the correct form of the words in brackets.

The computer-one of the most marvellous (1)____________(invent) in our modern age has proved to be (2)______________(extreme) (3)____________(help) to man's life. A computer can not only solve the most complex math problems with lightning speed and prefect (4)___________(accurate), but also gather the wide range of (5)____________(inform) for (6)___________(variety) purposes in many fields. Nowadays, the computer always plays an (7)____________(importance) role that is (8)_____________(change).

Ai giúp mình bài này với.

A.poor quality of education in schools there

B.broken into or being attacked and robbeed

C.in the fields to earn their living

D.where people can relax and socialize whith their friends

E. can also have a trest and go for a nice walk

F looking for a job

G.with finding studying materials

H.are healthier than you can buy in the greengrocer’s

Living in the countryside brings back both advantages and disadvantages .First of all countryside is not polluted, therefore you can breath fresh air .Besides there is hardly any road traffic thus you can enjoy silence in the country You(1) .................... in the forest or in the meadows .What is more,in the country ,people can grow their own fruit and vegetables which (2)...............-in the city .Next ,it is safer than life in a metropolis .In small towns or villages ,crime rate is usually very low and people do not need to be afraid of having their house(3).....in the street .Moreover ,it seems that in the country the relationship between people s more genuine because people are friendly and open.One of the drawbacks of living in the countryside is(4)........Country schools do not usually have good facilities like gyms or computer rooms .In addition ,students have often problems(5)......as the access to the Internet still is not widespread there.Moreover ,children develop their natural talents since they cannot attend any additional lessons or courses.The most serious problem of living in the country is (6)...........There are no companies or factories tat will offer people employment .Therefore ,most dwellers of the country are farmers who have to work very hard (7) ............Those who are lucky enough can seek jobs in nearby towns but they will have a problem with commuting as the communication network is not developed well in the country .Another bad side of country life is lack of entertainment .There are no cafes or cinemas(8)................

I. Use the correct word form.

1. Bell experimented with ways of transmitting ......... over a long distance. (speak)

2. How many ...... are there in Viet Nam in a year. (celebrate)

3.No one knows the exact ...... of the river. (deep)

4. This statue is a ....... to a great statesman. (memory)

II. Rewrite the following sentances without changing the meaning.

1. Nam is so intelligent that he can answer all my questions.

Nam is such.............................

2. Have you ever played a computer game before?

Is this.........................................

3. Having a vacation abroad is very interesting.

It is..................................

4. It took me half an hour to get to worrk by underground every morning last month.

I spent..............................

5. Lan used to type faster than she does now.

She doesn't ..........................................

6. The boy looks thin but he is very strong.

Although.......................................

7. No one can slove the problem.

This problem.......................

8. May I borrow your pen?

Would you mind .............................

9. I fell asleep because the film was very boring.

The film was so...................

10. She didn't go to school yesterday because her mother was sick.

Because of...............................

Read the following passage  and  mark  the letter  A, B, C or D on your  answer  sheet to indicate  the correct  answer  to each of the following questions  from 39 to 40.

Animation traditionally is done by hand-drawing or painting successive frames of an object, each slightly different than the preceding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first and the last drawing. This is generally referred to as computer-assisted animation, because the computer is more of a helper than an originator.

In full computer animation, complex mathematical formulas are used to produce the final sequence of pictures. These formulas operate on extensive databases of numbers that define the objects in the pictures as they exist in mathematical space. The database consists of endpoints, and color and intensity information. Highly trained professionals are needed to produce such effects because animation that obtains high degrees of realism involves computer techniques for three-dimensional transformation, shading, and curvatures.

High-tech computer animation for film involves very expensive computer systems along with special color terminals or frame buffers. The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen.

A camera can be used to film directly from the computer's display screen, but for the highest quality images possible, expensive film recorders are used. The computer computes the positions and colors for the figures in the picture, and sends this information to the recorder, which captures it on film. Sometimes, however, the images are stored on a large magnetic disk before being sent to the recorder. Once this process is completed, it is repeated for the next frame. When the entire sequence has been recorded on the film, the film must be developed before the animation can be viewed. If the entire sequence does not seem right, the motions must be corrected, recomputed, redisplayed, and rerecorded. This approach can be very expensive and time consuming. Often, computer-animation companies first do motion tests with simple computer-generated line drawings before selling their computers to the task of calculating the high-resolution, realistic-looking images.

According to the passage, in computer-assisted animation the role of the computer is to draw the ________.

A. first frame

B. middle frames

C. last frame

D. entire sequences of frames

Read the following passage  and  mark  the letter  A, B, C or D on your  answer  sheet to indicate  the correct  answer  to each of the following questions  from 39 to 40.

Animation traditionally is done by hand-drawing or painting successive frames of an object, each slightly different than the preceding frame. In computer animation, although the computer may be the one to draw the different frames, in most cases the artist will draw the beginning and ending frames and the computer will produce the drawings between the first and the last drawing. This is generally referred to as computer-assisted animation, because the computer is more of a helper than an originator.

In full computer animation, complex mathematical formulas are used to produce the final sequence of pictures. These formulas operate on extensive databases of numbers that define the objects in the pictures as they exist in mathematical space. The database consists of endpoints, and color and intensity information. Highly trained professionals are needed to produce such effects because animation that obtains high degrees of realism involves computer techniques for three-dimensional transformation, shading, and curvatures.

High-tech computer animation for film involves very expensive computer systems along with special color terminals or frame buffers. The frame buffer is nothing more than a giant image memory for viewing a single frame. It temporarily holds the image for display on the screen.

A camera can be used to film directly from the computer's display screen, but for the highest quality images possible, expensive film recorders are used. The computer computes the positions and colors for the figures in the picture, and sends this information to the recorder, which captures it on film. Sometimes, however, the images are stored on a large magnetic disk before being sent to the recorder. Once this process is completed, it is repeated for the next frame. When the entire sequence has been recorded on the film, the film must be developed before the animation can be viewed. If the entire sequence does not seem right, the motions must be corrected, recomputed, redisplayed, and rerecorded. This approach can be very expensive and time consuming. Often, computer-animation companies first do motion tests with simple computer-generated line drawings before selling their computers to the task of calculating the high-resolution, realistic-looking images.

The word "they" in the second paragraph refers to ________

A. formulas

B. objects

C. numbers

D. database