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42. The first virus appeared _________.
A.In 1986 B. In 1987 C. In 1990 D. On Friday 13th
43. Computer viruses became extremely dangerous _________.
A.on Friday 13th
B. when the first virus called Brain was created
C. when computers were connected to e-mail and Internet systems
D. in 1987
44. Which statement is TRUE about computer viruses?
A.The Melissa virus is part of the Internet system.
B. The virus Jerusalem is harmless because it did nothing.
C. A computer virus can kill people.
D. computer virus is a program.
45. A “remedy" (paragraph 4) refers to __________.
A.viruses B. programmers C. medicine D. antivirus software
46. The word "which" in the last paragraph refers to __________.
A.a computer virus created by people B. a computer virus
C. a few hours' stoppage caused by people D. the stoppage of the whole world caused by a computer virus
Chọn câu trả lời đúng:
A computer is an electronic..(1).. which executes software programs. It consits..(2)..2 parts hardware and..(3)..The computer processes input through input devices like mouse and keyboard. The computer displays output through output devices like color monitor and printer. The size of a computer varies considerably from very..(4)..to very big. The speed of computers also has a very large range. Computers have become indispenable in today's world. ..(5)..of people use computers all over the world
1. A. device B. computer C. monitor D.form
2. A. for B. with C. of D.about
3. A. mouse B. keyboard C. screen D. software
4. A. slim B. small C. large D. heavy
5. A. millions B. thousands C. hundreds D. none
Read the passage and choose the best answers :
TECHNOLOGY AND YOU
Computers ( 1) ........................ part of our daily lives . We visit shops , offices , and places of ( 2) ................. beauty with the help of computers . We pay bills prepared by computers . We read newspapers and magazines ( 3) ................... have been produced on computers . We receive letters from and send letters to almost every part of the world with the help of computers . And we can even learn foreign languages on computers .
What makes a computer such a miraculous device ? Each time you turn it on , with appropriate hardware and software , it is capable ( 4 ) ............................. almost anything you ask it to . It is a calculating machine which speeds ( 5 ) ............... calculations : it can add , subtract , multiply , and divide with lightning speed and perfect accuracy .
1. A . has become B. have become C . has became D . have becoming
2. A . scenic B . scene C . science D . since
3. A . what B . which C . who D . whom
4. A . to do B . of doing C . doing D . for doing
5. A . of B . to C . from D . up
People in the United States often shop from catalogs. There are special catalogs for (1)...............every need, including clothing, furniture, health, (2).................products and things for the kitchen. People also order (3)..............40% of their music club catalogs. Customers say that music stores are too noisy.
Television shopping began in 1986. About 5% to 8% of the American public now shops by television. Some (4)..............shopping channels are the Home Shopping Network and QVC. Customers say that television shopping is (5).................than shopping in a store. How do they buy things? They (6)......................a phone call and charge the item to their credit card. And TV shopping channels are on late at night (7)...............people can go shopping anytime.
Is the computer shopping the way of furniture? About 37% of American (8)....................now have personal computers. And shopping by computer (or shopping on-line) is(9).................to more people every day. Already, shoppers can use their computers to order many different products, such as computers products, flowers, foods, T-shirts and posters. And new on-line shopping services (20).....................everyday. Soon people may be able to shop for anything, anytime, anywhere in the world.
1. A. most B. almost C. mostly D. most of
2. A. beauty B. beautiful C. beautify D. beautified
3. A. to B. of C. for D. about
4. A. popular B. liked C. favourite D. beloved
5. A. larger B. more C. easier D. popular
6. A. do B. make C. have D. have
7. A. so B. but C. because D. though
8. A. houseful B. housework C. housewife D.households
9. A. exciting B. surprising C. amazing D. interesting
10. A. raise B. come C. appear D. forecast