1. Write the sentences with for or Use the verbs in the present perfect.
a) I/ own/ this Computer/ three years.
I have owned this Computer for three years.
b) They/ visit/ the Silicon Valley/ last November.
c) Nam/ be/ happy/ he had a
d) We/ learn/ Computer Science/ a
e) She/ work/ at our school/ the year 2000.
f) I/ use/ those programs/ two years.
g) The printer/ stop working/ this morning.
h) They/ know/ the name of the company/ a long time.
He/ read/ the book/ 9 o’clock.
2. Complete the sentences, using the verbs in the present perfect.
a) This Computer is the best one I ______ . (ever use)
This Computer is the best One I have ever used.
b) There_______ a new program for the students in the school. (be)
c) Three more students our group this week. (join)
d) This is the fifth time he the Computer, (damage)
e) Our teacher the whole class to learn Computer Science, (ask)
f) We why the printer refused to work. (find out)
3. Match the sentences in (I) with the appropriate responses in (II).
(I)
| (I) |
| a) Do you know how to use the Computer well? | _______ |
| b) What’s the matter with you? | _______ |
| c) Can’t you type a little bit faster? | _______ |
| d) What do you think of this new Computer game? | _______ |
| e) You are looking very excited. | _______ |
| f) Do you know where the new ink box is? | _______ |
| g) Why don’t you print out those pages? | _______ |
| h) Did you enjoy the game? | _______ |
| i) They look very tired. | _______ |
| j) Do you like playing the “car race” games? | _______ |
(II)
A. My parents have just bought me a Computer set.
B. I’ve run out of paper.
C. Yes. They have tried to repair the system since early morning.
D. I haven’t seen anybody store any boxes in our room.
E. I have studied how to use it for years.
F. Oh, sorry. I haven’t been familiar with the keyboard yet.
G. I have never tried them.
H. I have forgotten the password of the file.
I. It’s the most interesting one I have ever played.
J. I have no idea. I haven’t played it yet.
4. Complete the sentences with yet or already
a) I’ve started learning Computer but I haven’t leaned very much_________ .
b) I’m still trying to finish my homework. I’ve _____ been at it for hours.
c) The children are still watching TV. They haven’t been to bed________
d) We offer to help Tim with the bike but he has_________ mended it.
e) Ba hasn’t gone to school________ . He is still having breakfast.
f) We have_______ seen Titanic and we don’t want to see it again.
g) Hoa posted her letter last week but her family hasn’t got it_________ .
h) Is Shannon still here?
No, she has _____ left.
i) Have you finished your homework________ or are you still working on it?
Well, I’ve________ finished it.
5. Quyen is now in a shopping mall. Look at her shopping list and write sentences telling what she has already bought/done (Y) and what she hasn’t bought/done (x) yet.
Shopping list
| a) A pair of shoes | √ |
| b) T-shirts for Mr. Thanh | x |
| c) A handbag for daughter | √ |
| d) Souvenirs for Mends | x |
| e) Cosmetics | x |
| f) A tea set | √ |
| g) A pair of sun glasses | √ |
| h) Withdraw money | √ |
| i) Meet an old friend at the restaurant for lunch | x |
| j) Buy a roll of film | x |
Examples:
a) Quyen has already bought a pair of shoes.
b) Quyen has not bought some T-shirts for Mr. Thanh yet.
c) _____________________________________.
d) _____________________________________.
e) _____________________________________.
f) _____________________________________.
g) _____________________________________.
h) _____________________________________.
i) _____________________________________.
j) _____________________________________.
6. Write the sentences, putting the verbs in the present perfect or past simple.
a) We (build) that room in October. It (be) in use for five months.
We built that room in October. It has been in forgiveness months.
b) Quyen (become) a famous young writer a few years ago. She (write) maniy stories for students of her age.
c) You (be) to the Disneyland? I’m glad that I (have) a chance to go there last year.
d) Loc (never use) his Computer even though he (buy) it a year ago.
e) I (not see) you for ages! – No, it’s just two weeks since we last (meet).
f) I (hear) a lot about Liz Robinson but I never (see) nor (talk) to her.
g) Ba (miss) his exams this morning because he (oversleep). He (come) to class late so many times these days. He must buy an alarm clock.
h) Hoa (take) a train to Ha Noi yesterday. She (take) many trips there since she (start) her study in Ha Noi three years ago.
i) Where’s Nam? You (see) him? – Yes. he (go) out to buy some paper a few minutes ago.
7. Look at the pictures and the words underneath. Write the instructions to make yogurt.
a) heat/ milk/ boil/ one minute
b) let/ milk/ cool/ about 40°c
c) add/ one cup of yogurt as a starter/ stir continually/ a while
d) pour milk/ little cups
e) leave cups/ warm place/ at least 5 hours
8. Fill in each gap in the following sentences with one word, phrase or acronym from the box.
|
a) My Computer has crashed. I need to __________ my Computer again.
b) When cleaning the inside of the Computer case, look at any cooling ___________ . Dust, dứt, and hair collect around these components the most.
c) When cleaning the _____________ screen it is important to remember not to spray any liquids onto the screen directly.
d) With some printers it may be necessary to _____________ the inside of the printer to help keep the printer running smoothly.
e) ___________ is a word used to describe the action of pressing a mouse button one or more times.
f) Many people clean the ______________ by turning it upside down and shaking. A more effective method is to use a vacuum cleaner.
g) The Computer’s mainboard, or typically contains the Computer system bus, processor, memory slots, serial and parallel ports, expansion slots, and peripheral controllers.
h) If you take an introductory course in Computer programming, you may be told that the ________is the “brains” of the Computer.
i) Most modem Computer displays can show the various colors of the RGB color space by changing red, ___________ , and blue video signals.
j) The basic components of a Computer include power supply, mainboard, CPU, memory, __________________ drive, monitor, keyboard and mouse.
9. Read and answer the multiple-choice questions.
There are four main uses of computers: word Processing, Internet/ Communications, digital video and audio composition, and desktop publishing.
The word Processing capabilities of computers are amazing. They can automatically correct your spelling and grammar mistakes. The cutting and pasting features are incredibly simple and very useful for revision. Plus it is easier to read a word-processed document than one written by hand. All of these things help writers in many ways. You can also add pictures to your writing easily and you can create page layouts for entire books on your home Computer.
The Internet is one of the greatest inventions. It is a huge network ,of .computers, each with the ability to access any of the others. Using the Internet, anyone anywhere can communicate for free. New uses are being found for the Internet every day.
Audio and video editing and composition are now much easier with computers. Cutting and pasting is no longer comprised of using scissors and tape on large reels of film. Now amateur filmmakers can produce work from their own homes. Graphics engineers can use computers to create three- dimensional models, or even to generate short or full-length films. Anybody who owns a Computer can now enter the field of media production.
The Computer has so many uses that cannot be found anywhere else. Its word Processing, the Internet, audio and video tools are the reasons why it is so helpful in modem society. With the aid of computers, humankind is entering a new era of enlightenment.
a) Computers can be used for international communications.
| A. True | B. False | C. Not mentioned |
b) Which of the followings can computers do?
A. Completing documents
B. Checking mistakes in documents
C. Writing books
D. Using scissors
c) The term “word Processing” means_________ .
A. correcting grammar mistakes
B. cutting and pasting documents
C. writing documents by hand
D. creating and editing documents
d) Why is the Internet one of the greatest inventions?
A. Because it is a huge network of computers.
B. Because it helps people anywhere communicate with each others.
C. Because it uses computers.
D. Because it is free.
d) Which of the following sentences do you think is right?
A. Computers have four uses.
B. Computers can help people do everything.
C. Computers are amazing tools for filmmakers.
D. Graphics engineers cannot work without computers.
Xem thêm Unit 16: Inventions tại đây.
Đáp án
1. Write the sentences with for or since. Use the verbs in the present perfect. (Trang 128 sách Bài tập Tiếng Anh 8)
a. I have owned this computer for three years.
b. They have visited the Silicon Valley since last November.
c. Nam has been happy since he had a computer.
d. We have learned computer science for a moth.
e. She has worked at our school since the year 2000.
f. I have used those programs for two years.
g. The printer has stopped working since this morning.
h. They have known the name of the company for a long time.
i. He has read the book since 9 o’clock.
2. Complete the sentences, using the verbs in the present perfect. (Trang 128-129 sách Bài tập Tiếng Anh 8)
a. This computer is the best one I have ever used.
b. There has been a new program for the students in the school.
c. Three more students have joined our group this week.
d. This is the fifth time he has damaged the computer.
e. Our teacher has asked the whole class to learn computer science.
f. We have found out why the printer refused to work.
3. Match the sentences in (I) with the appropriate responses in (II). (Trang 129-130 sách Bài tập Tiếng Anh 8)
| a – E | b – H | c – F | d – J | e – A |
| f – D | g – B | h – I | i – C | j – G |
4. Complete the sentences with yet or already. (Trang 130 sách Bài tập Tiếng Anh 8)
a. I’ve started learning computer but I haven’t learned very much yet.
b. I’m still trying to finish my homework. I’ve already been at it for hours.
c. The children are still watching TV. They haven’t been to bed yet.
d. We offer to help Tim with the bike but he has already mended it.
e. Ba hasn’t gone to school yet. He is still having breakfast.
f. We have already seen Titanic and we don’t want to see it again.
g. Hoa posted her letter last week but he family hasn’t got it yet.
h. Is Shannon still here? – No, she has already left.
i. Have you finished your homework yet or are you still working on it?
Well, I’ve already finished it.
5. Mrs. Quyen is now in a shopping mall. Look at her shopping list and write sentences telling what she has already bought/ done (√) and what she hasn’t bought/ done (x) yet. (Trang 131 sách Bài tập Tiếng Anh 8)
a. She has already bought a pair of shoes.
b. She hasn’t/ has not bought some T – shirts for Mr. Thanh yet.
c. She has already bought a handbag for her daughter.
d. She hasn’t/ has not bought some souvenirs for her friends yet.
e. She hasn’t/ has not bought cosmetics yet.
f. She has already bought a tea set.
g. She has already bought a pair of sun glasses.
h. She has already withdrawn some money.
i. She hasn’t/ has not met an old friend at the restaurant for lunch yet.
j. She hasn’t/ has not bought a roll of film yet.
6. Write the sentences, putting the verbs in the present perfect or past simple. (Trang 132 sách Bài tập Tiếng Anh 8)
a. We built that room in October. It has been in use for five months.
b. Quyen became a famous young writer a few years ago. She has written many stories for students for ages.
c. Have you been to Disneyland? I’m glad that I had a chance to go there last year.
d. Loc has never used his computer even though he bought it a year ago.
e. I haven’t seen you for ages! – No, it’s just two weeks since we last met.
f. I have heard a lot about Liz Robinson but I have never seen or talked to her.
g. Ba missed his exams this morning because he overslept. He has come to class late so many times these days. He must buy an alarm clock.
h. Hoa took a train to Ha Noi yesterday. She has taken many trips there since she started her study in Ha Noi three years ago.
i. Where’s Nam? Have you seen him? – Yes, he went out to buy some paper a few minutes ago.
7. Look at the pictures and the words underneath. Write the instructions to make yogurt. (Trang 132-133 sách Bài tập Tiếng Anh 8)
a. Heat the milk until it is boiled in one minute.
b. Let the milk cool (off) to about 40oC.
c. Add a cup of yogurt as a starter and stir the mixture continually for a while.
d. Pour the milk into little cups.
e. Leave the cups in a warm place for at least 5 hours.
f. When the yogurt is ready, put it in the fridge to cool it.
8. Fill in each gap in the following sentences with one word, phrase or acronym from the box. (Trang 134 sách Bài tập Tiếng Anh 8)
a. set up
b. fans
c. LCD
d. clean
e. click
f. keyboard
g. motherboard
h. CPU
i. Green
j. hard – disk
9. Read and answer the multiple-choice questions. (Trang 135-136 sách Bài tập Tiếng Anh 8)
| a. A | b. B | c. D | d. B | e. A |
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