Tìm lỗi sai và sửa lại, giải thích 

Because of the flood happened, many families lost their houses.

He had not idea how difficult the job was.         

Scientists have identified a link between an healthy diet and diseases. 

      1.        Tìm lỗi sai trong câu và sửa lại cho đúng

                1.1.        I have stomach ache, or I don't want to eat anything.

                1.2.        The Americans often eat fast food, but many of them are overweight.

                1.3.        I use to walk to work when I was younger.

                1.4.        He use to have long hair but nowadays this hair is very short.

                1.5.        We were all horrifying when we heard about the disaster.

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

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

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

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

According to the second paragraph, a useful theory is one that helps scientists to x

A. observe events

B. publicize new findings

C. make predictions

D. find errors in past experiments

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 from 33 to 37.

There has been an outbreak of avian influenza, better known as bird flu in Asia recently. The first (33) _____ died two weeks ago in Vietnam and there have been the cases reported since in Thailand, and there are some suspected cases in Cambodia as well as.

Wild birds are affected by a large number of flu viruses, just as the humans and other animals are, but they are normally exclusive to birds. If the viruses manage to mutate, they can to jump the species barrier and infect human beings. The first case (34) _____ someone died was in Hong Kong in 1997.

There are the several different forms of bird flu, ranging from mild to very (35) _____ infections, which spreading rapidly and kill many of the birds they infect. It is spread by wild birds-ducks, in particular – which carry the virus, but aren't killed by it. They can spread the virus to farm birds through (36) _____ contact or by the contaminating water supplies.

World Health Organization officials have attributed the spread of bird flu to human contact with the droppings of infected birds and (37) _____ sanitation. There was no evidence at first that the virus spread from person to person, though there has been a case of this happening being investigated by scientists.

Điền vào ô 34.

A. where

B. when

C. which

D. why

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 from 31 to 35.

There has been an outbreak of avian influenza, better known as bird flu in Asia recently. The first (31) _____ died two weeks ago in Vietnam and there have been the cases reported since in Thailand, and there are some suspected cases in Cambodia as well as. 

          Wild birds are affected by a large number of flu viruses, just as the humans and other animals are, but they are normally exclusive to birds. If the viruses manage to mutate, they can to jump the species barrier and infect human beings. The first case (32) _____ someone died was in Hong Kong in 1997. 

          There  are  the  several  different  forms  of  bird  flu,  ranging  from  mild  to  very  (33)  _____  infections, which spreading rapidly and kill many of the birds they infect. It is spread by wild birds-ducks, in particular – which carry the virus, but aren't killed by it. They can spread the virus to farm birds through (34) _____ contact or by the contaminating water supplies. 

World  Health  Organization  officials  have  attributed  the  spread  of  bird  flu  to  human  contact  with  the

droppings of infected birds and (35) _____ sanitation. There was no evidence at first that the virus spread from person to person, though there has been a case of this happening being investigated by scientists.

Điền ô số 34

A. direct

B. straight

C. immediate

D. square

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 from 33 to 37.

There has been an outbreak of avian influenza, better known as bird flu in Asia recently. The first (33) _____ died two weeks ago in Vietnam and there have been the cases reported since in Thailand, and there are some suspected cases in Cambodia as well as.

Wild birds are affected by a large number of flu viruses, just as the humans and other animals are, but they are normally exclusive to birds. If the viruses manage to mutate, they can to jump the species barrier and infect human beings. The first case (34) _____ someone died was in Hong Kong in 1997.

There are the several different forms of bird flu, ranging from mild to very (35) _____ infections, which spreading rapidly and kill many of the birds they infect. It is spread by wild birds-ducks, in particular – which carry the virus, but aren't killed by it. They can spread the virus to farm birds through (36) _____ contact or by the contaminating water supplies.

World Health Organization officials have attributed the spread of bird flu to human contact with the droppings of infected birds and (37) _____ sanitation. There was no evidence at first that the virus spread from person to person, though there has been a case of this happening being investigated by scientists.

Điền vào ô số 37

A. awful

B. bad         

C. terrible

D. poor 

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 from 33 to 37. 

There has been an outbreak of avian influenza, better known as bird flu in Asia recently. The first (33) _____ died two weeks ago in Vietnam and there have been the cases reported since in Thailand, and there are some suspected cases in Cambodia as well as.

Wild birds are affected by a large number of flu viruses, just as the humans and other animals are, but they are normally exclusive to birds. If the viruses manage to mutate, they can to jump the species barrier and infect human beings. The first case (34) _____ someone died was in Hong Kong in 1997.

There are the several different forms of bird flu, ranging from mild to very (35) _____ infections, which spreading rapidly and kill many of the birds they infect. It is spread by wild birds-ducks, in particular – which carry the virus, but aren't killed by it. They can spread the virus to farm birds through (36) _____ contact or by the contaminating water supplies.

World Health Organization officials have attributed the spread of bird flu to human contact with the droppings of infected birds and (37) _____ sanitation. There was no evidence at first that the virus spread from person to person, though there has been a case of this happening being investigated by scientists. 

Điền vào số (36)

A. direct     

B. straight    

C. immediate        

D. square

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 from 33 to 37.

There has been an outbreak of avian influenza, better known as bird flu in Asia recently. The first (33) _____ died two weeks ago in Vietnam and there have been the cases reported since in Thailand, and there are some suspected cases in Cambodia as well as.

Wild birds are affected by a large number of flu viruses, just as the humans and other animals are, but they are normally exclusive to birds. If the viruses manage to mutate, they can to jump the species barrier and infect human beings. The first case (34) _____ someone died was in Hong Kong in 1997.

There are the several different forms of bird flu, ranging from mild to very (35) _____ infections, which spreading rapidly and kill many of the birds they infect. It is spread by wild birds-ducks, in particular – which carry the virus, but aren't killed by it. They can spread the virus to farm birds through (36) _____ contact or by the contaminating water supplies.

World Health Organization officials have attributed the spread of bird flu to human contact with the droppings of infected birds and (37) _____ sanitation. There was no evidence at first that the virus spread from person to person, though there has been a case of this happening being investigated by scientists.

Điền vào ô 36.

A. direct

B. straight

C. immediate

D. square