Computer are very (1)............, but they also can(2)............. problem. One kind of problem is with the computer

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...

#Tiếng anh lớp 8

1

DT

Đỗ Thanh Hải

CTVVIP

24 tháng 5 2021

1 useful

2 cause

3 sometimes

4 important

5 Another

6 machine

7 may

8 health

Đúng(2)

TB

Trường Beenlee

1 tháng 5 2020

#Tiếng anh lớp 8

2

N

Nhõi

1 tháng 5 2020

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

NM

Nguyễn Mạnh Quang

7 tháng 2 2021

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. healthil

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...

LT

Lê Thị Hồng Lĩnh

29 tháng 6 2018

#Tiếng anh lớp 7

1

IN

Isabella Nguyễn

29 tháng 6 2018

1. in

2. what

3. personal

4. sets

5. even

6. cause

7. lose

8. erase

9.

10. another

Chúc bạn học tốt!

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...

HP

Hoàng Phương Huyền

28 tháng 3 2017

#Tiếng anh lớp 11

1

DM

Đức Minh

28 tháng 3 2017

Today 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 fatory 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 small. They are so small that you cannot even see all their parts. Computers are very useful, but they also can cause problems. One kind of problems is with the computer's memory. It is not perfect so sometimes computers lose important information. Another problem is with the machinery. Computers are machines, and machines can break down. When the computers break down, they may 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 health. They say you should not work with computers all day.

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can...

LQ

Lê Quỳnh Anh

21 tháng 9 2018

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two.

The easiest way to protect a system is with a good password, Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won't have the code. Or if the hacker somehow gets the code, they still don't know the password.

As suggested in the last paragraph, what is the best way for computer users to prevent hackers?

A. They should use a long and customary password so that hackers cannot guess.

B. They should use different passwords for different accounts to access the sites.

C. They should have an additional secret code to confirm for their access after putting a password.

D. They should not use any code on online services to make sure that hackers have no chance to get your password.

1

DH

Dương Hoàn Anh

21 tháng 9 2018

Đáp án C

Như đã được gợi ý trong đoạn văn cuối, cách tốt nhất để người dùng máy tính ngăn chặn tin tặc là gì?

A. Họi nên sử dụng một mật khẩu dài và thông dụng để tin tặc không thể đoán.

B. Họ nên sử dụng các mật khẩu khác nhau cho các tài khoản khác nhau khi đăng nhập vào các trang mạng.

C. Họ nên có thêm một mã xác nhận bí mật để xác nhận cho quyền truy cập của họ sau khi đã nhập mật khẩu.

D. Họ không nên sử dụng bất kì một mã nào trên các dịch vụ trực tuyến để đảm bảo rằng tin tặc không có cơ hội đánh cắp mật khẩu.

Từ khóa: best way/ prevent hackers

Căn cứ vào thông tin đoạn văn cuối:

“The easiest way to protect a system is with a good password. Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have speciaal cards or devices that show them the new code to use the next time. Even ifo hacker steals the password, they won’t have the code. Or if the hacker somehow gets the code, they still don’t know the password.”

(Cách đơn giản nhất để bảo vệ hệ thống là sử dụng 1 mật khẩu tốt. Mật khẩu đài và khác thường sẽ khiến tin tặc khó đoán được. Để bảo mật hơn nữa, một số địch vụ trực tuyến hiện nay đã sử dụng hệ thống “mật khẩu cộng mật khẩu”. Trong trường hợp này, trước hết người dùng nhập mật khẩu, sau đó nhập tiếp một mã thứ hai mà luôn thay đổi sau khi người dùng truy cập vào trang mạng. Người dùng sẽ có các dịch vụ hoặc thẻ đặc biệt cho họ biết mã truy cập mới cho lần đăng nhập tiếp theo. Ngay cả khi tin tặc lấy cắp được mật khẩu, họ cũng sẽ không có mã đăng nhập. Hoặc bằng cách nào đó tin tặc lấy được mã đăng nhập, họ cũng không thể biết mật khẩu là gì.)

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can...

LQ

Lê Quỳnh Anh

24 tháng 4 2017

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two.

The easiest way to protect a system is with a good password, Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won't have the code. Or if the hacker somehow gets the code, they still don't know the password.

The word "manipulate" in paragraph 2 is closest in meaning to ______.

A. require

B. modify

C. transform

D. influence

1

DH

Dương Hoàn Anh

24 tháng 4 2017

Đáp án D

Từ “manipulate” trong đoạn 2 gần nghĩa nhất với từ _________.

A. yêu cầu
B. sửa đổi, giảm nhẹ

C. chuyển đổi
D. thao túng, kiểm soát

Từ đồng nghĩa: manipulate (thao túng, kiểm soát) = inﬂuence

“The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.” (Các giao thức này cũng có thể quy định mức thông tin có thể chia sẻ giữa 2 hệ thống máy tính là bao nhiêu. Các tin tặc có thể thao túng các giao thức này để có quyền truy cập vô hạn vào hệ thống máy tính kia.)

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can...

LQ

Lê Quỳnh Anh

23 tháng 12 2017

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two.

The easiest way to protect a system is with a good password, Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won't have the code. Or if the hacker somehow gets the code, they still don't know the password.

According to paragraph 2, which information is NOT true about protocols?

A. Protocols are a set of rules controlling the way data is sent between computers.

B. Protocols can try out whether they are legal to access another computer or not.

C. The amount of shared information between two computers depends on the host computer.

D. The data hackers can get from others' computers may be infinite.

1

DH

Dương Hoàn Anh

23 tháng 12 2017

Đáp án C

Theo đoạn 2, thông tin nào sau đây là không đúng về các giao thức?

A. Giao thức là 1 tập hợp các quy tắc dùng để điều khiển cách thức dữ diệu được chia sẻ giữa các hệ thống máy tính.

B. Ciao thức có thể thử liệu chúng có được phép truy cập vào máy tính kia một cách hợp pháp hay không.

C. Lượng thông tin được chia sẻ giữa 2 hệ thống máy tính phụ thuộc vào máy chủ.

D. Dữ liệu mà các tin tặc có thể lấy được từ các máy tính khác có thể là vô hạn.

Từ khóa: not true / protocols

Căn cứ vào thông tin đoạn 2:

“Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police ofﬁcers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system."

(Hầu hết tin tặc sử dụng một loại thông tin được gọi là các giao thức được cài vào trong phần mềm máy tính. Những giao thức này cho phép các máy tính kết nối với một máy tính khác. Các giao thức hoạt động như những cảnh sát máy tính. Khi một máy tính kết nối được với một máy tính khác, các giao thức sẽ kiểm tra xem liệu quyền truy cập có hợp pháp không. Các giao thức này cũng có thể quy định mức thông tin có thể chia sẻ giữa 2 hệ thống máy tính là bao nhiêu. Các tin tặc có thể thao túng các giao thức này để có quyền truy cập vô hạn vào hệ thống máy tính kia.)

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...

M

miklaphuc

15 tháng 2 2020

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can...

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.

#Tiếng anh lớp 8

0

LQ

Lê Quỳnh Anh

11 tháng 4 2019

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two.

The easiest way to protect a system is with a good password, Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won't have the code. Or if the hacker somehow gets the code, they still don't know the password.

Which of the following could best describe the main idea of the passage?

A. Computer security and hackers.

B. Different types of hackers.

C. What a hacker can damage in your computer.

D. The way hackers access to a computer.

1

DH

Dương Hoàn Anh

11 tháng 4 2019

Đáp án A

Câu nào trong các câu sau mô tả hợp lý nhất ý chính của đoạn văn?

A. Bảo mật máy tính và tin tặc

B. Các loại tin tặc khác nhau.

C. Những điều mà một tin tặc có thể gây hại cho máy tính của bạn.

D. Cách mà tin tặc đột nhập vào 1 hệ thống máy tính.

Căn cứ thông tin đoạn 1:

“As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking.” (Khi việc sử dụng máy tính dần trở nên phổ biến thì nhu cầu bảo mật lại quan trọng hơn bao giờ hết. Một trong những mối đe dọa nguy hiểm nhất với thế giới mạng là nạn tin tặc đột nhập vào máy tính.)

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question. As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can...

LQ

Lê Quỳnh Anh

9 tháng 12 2017

Read the following passage and mark the letter A, B, C, or D to indicate the answer to each of the question.

As computer use becomes more common, the need for security is more important than ever. One of the greatest security threats in the online world is computer hacking. Computer hacking is the unauthorized access to a computer or network of computers. Hackers are people who illegally enter systems. They may alter or delete information, steal private information, or spread viruses that can damage or destroy files. But how exactly can a hacker get into a system to do these things?

Most hackers use information called protocols that are built into computer software. These protocols allow computers to interact with one another. Protocols are sort of like computer police officers. When a computer connects to another system, the protocols check to see if the access is valid. The protocols can also determine how much information can be shared between the two systems. Hackers can manipulate the protocols to get unlimited access to a computer system.

In fact, just the act of entering a computer network is considered hacking. This is commonly called passive hacking. Passive hackers get a rush from just being able to access a challenging system like a bank or military network. Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two.

The easiest way to protect a system is with a good password, Long and unusual passwords are harder for hackers to guess. For even greater security, some online services now use “password-plus” systems. In this case, users first put in a password and then put in a second code that changes after the user accesses the site. Users either have special cards or devices that show them the new code to use the next time. Even if a hacker steals the password, they won't have the code. Or if the hacker somehow gets the code, they still don't know the password.

The author mentioned in the third paragraph that active hackers are more dangerous because ______.

A. they often get access to important networks like a bank or military.

B. they implant viruses or steal private and other vital information in systems.

C. they always remove all the data in the systems they hack.

D. they can do many harmful things for the whole computer network system.

1

DH

Dương Hoàn Anh

9 tháng 12 2017

Đáp án B

Tác giả đề cập trong đoạn 3 rằng tin tặc chủ động thì nguy hiểm hơn bởi vì __________.

A. chúng thường truy cập vào các mạng lưới quan trọng như ngân hàng hay quân đội.

B. chúng cài virus hay lấy trộm các thông tin cá nhân và thông tin quan trọng khác trong các hệ thống.

C. chúng thường xóa bỏ tất cả dữ liệu của hệ thông chúng xâm nhập.

D. chúng có thể làm nhiều thứ gây hại đến toàn bộ hệ thống mạng lưới máy tính.

Từ khóa: active hackers/ more dangerous

Căn cứ thông tin đoạn 3:

“Another kind of hacker tries to do damage to a system. After hacking into systems, these hackers release viruses or alter, delete, or take information. Known as active hackers, they are, by far, the more dangerous of the two."

(Một loại tin tặc khác cố gắng gây thiệt hại cho hệ thống máy tính mà họ xâm nhập. Sau khi truy cập vào hệ thống, những tin tặc này cấy virus vào hoặc thay đổi, xóa hay lấy trộm thông tin. Chúng được biết đến như là tin tặc chủ động và rõ ràng chúng là loại nguy hiểm hơn trong 2 loại tin tặc).