Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blanks from 1 to 5.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are

caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place

where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.

Điền vào ô 1

A. threat

B. problem

C. danger

D. vanishing

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.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blanks from 1 to 5.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are

caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place

where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.

Điền vào ô 2

A. disappeared

B. vanished

C. extinct

D. empty

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blanks from 1 to 5.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are

caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place

where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.

Điền vào ô 4

A. spoil

B. wound

C. wrong

D. harm

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blanks from 1 to 5.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are

caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place

where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.

Điền vào ô 3

A. for life

B. alive

C. lively

D. for living

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best first each of the numbered blanks from 1 to 5.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________. if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are

caught (3)________. and sold as pets. For many animals and birds the problem is that their habitat - the place

where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________. wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________., unless we can solve this problem.

Điền vào ô 5

A. left

B. over

C. staying

D. survive

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.

What does the phrase "the two" in paragraph 3 refer to _______?

A. a bank and military network

B. passive and active hackers

C. hackers and viruses   

D. systems and viruses

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.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks.

Nowadays people are more aware that wildlife all over the world is in (1)________. Many species of animals are threatened, and could easily become (2)________ if we do not make an effort to protect them. In some cases, animals are hunted for their fur or for other valuable parts of their bodies. Some birds, such as parrots, are caught (3)________and sold as pets. For many animals and birds the problem is that their habitat - the place where they live - is disappearing. More land is used for farms, for houses or industry, and there are fewer open spaces than there once were. Farmers use powerful chemicals to help them to grow better crops, but these chemicals pollute the environment and (4)________ wildlife. The most successful animals on earth - human beings - will soon be the only ones (5)________, unless we can solve this problem.

Question 1

A. threat

B. problem

C. danger

D. vanishing