Exercise 8: 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 questions
It is estimated that over 99 percent of all species that have existed have become extinct. What causes extinction? When a species is no longer adapted to a changed environment, it may perish. The exact causes of a species' death vary from situation to situation. Rapid ecological change may render an environment hostile to a species. For example, temperatures may change and a species may not be able to adapt. Food resources may be affected by environmental changes, which will then cause problems for a species requiring these resources. Other species may become better adapted to an environment, resulting in competition and, ultimately, in the death of a species.
The fossil record reveals that extinction has occurred throughout the history of Earth. Recent analyses have also revealed that on some occasions, many species became extinct at the same time- a mass extinction. One of the best-known examples of mass extinction occurred 65 million years ago with the demise of dinosaurs and many other forms of life. Perhaps the largest mass extinction was the one that occurred 225 million years ago, when approximately 95 percent of all species died. Mass extinction can be caused by a relatively rapid change in the environment and can be worsened by the close interrelationship of many species. If, for example, something were to happen to destroy much of the plankton in the oceans, then the oxygen content of Earth would drop, affecting even organisms not living in the oceans. Such a change would probably lead to a mass extinction.
One interesting, and controversial, finding is that extinctions during the past 250 million years have tended to be more intensive every 26 million years. This periodic extinction might be due to intersection of the Earth's orbit with a cloud of comets, but this theory is purely speculative. Some researchers have also speculated that extinction may often be random. That is, certain species may be eliminated and others may survive for no particular reason. A species' survival may have nothing to do with its ability or inability to adapt. If so, some of evolutionary history may reflect a sequence of essentially random events.
According to the passage, it is believed that the largest extinction of a species occurred _______.




A.26 million years ago
B.250 million years ago
C.225 million years ago
D.65 million years ago

Exercise 7: Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
After a six-year relation, Martha and Billy have decided to ________ .




A.break the bank
B.tie the knot
C.turn the page
D.make ends meet

Exercise 7: Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
If I were in charge, I ________ things differently.




A.had done
B.would do
C.would have done
D.will do

Tìm một từ có phần gạch chân có cách phát âm khác so với các từ còn lại




A.elephant
B.recognize
C.sentence
D.essential

VI. Read the passage carefully and choose the correct answer.
Basketball was invented by James Naismith in 1891. Naismith wanted to make a game that could be played indoors. He remembered a game he used to play in his childhood. He developed that game to make basketball.
Basketball is played on a basketball court. There is a backboard with an iron basket at each end of the court. The basket is 10 feet high. The only other equipment is a basketball.
Naismith made 13 rules to guide the game. There are 5 people on each team. Basketball players must dribble the ball. The goal of this game is to put the ball into the other team’s basket and to earn points. The team with the most points wins the game.
Basketball is now very popular all over the world.Americahas very good teams in the National Basketball Association (NBA).
All of the following are true about basketball EXCEPT ________




A.Basketball is enjoyed everywhere in the world.
B.There are 13 rules to follow when playing basketball.
C.The equipment of the basketball game is a court and a basketball.
D.All nations have teams in the National Basketball.

Chọn đáp án thích hợp nhất ( A, B, C, hoặc D) để hoàn thành mỗi câu sau
I‘m sorry for opening your handbag, but I....... it for mine.




A.recognized
B.confused
C.imagined
D.mistook

Điền một giới từ thích hợp vào chỗ trống trong các câu sau
How much did he charge you (57)....... doing (58)....... the room?




A.for-in
B.for-up
C.to - up
D.to - in

Điền mạo từ thích hợp vào chỗ trống
(42)....... whale is (43)....... mammal, not (44)....... fish.




A.a - a - the
B.the - the - the
C.the - a - a
D.the - - a

Hãy cho dạng đúng của các từ trong ngoặc
These days it is____ (31. possible) to open a newspaper without reading about the damage we are doing to the environment. The earth is being _____(32. threat) and the future looks bad. What can each of us do? We cannot clean up _____(33. pollute) rivers and seas overnight. Nor can we stop the ______(34. appear) of plants and animals but we can stop adding to the problem while ____(35. science) search for answers, and laws are passed in nature’s ____(36. defend)
It may not be easy to change your lifestyle completely but some steps are easy to take: cut down the amount of ____(37. drive) you do, use as little plastic as possible. It is also easy to save energy, which also reduces____ (38.house) bills. We must all make a _____(39. person) decision to work for the future of our planet if we want to _____(40. sure) a better world for our grandchildren.
_____(39. person)




A.personable
B.personal
C.personer
D.personage

Hãy cho dạng đúng của các từ trong ngoặc
These days it is____ (31. possible) to open a newspaper without reading about the damage we are doing to the environment. The earth is being _____(32. threat) and the future looks bad. What can each of us do? We cannot clean up _____(33. pollute) rivers and seas overnight. Nor can we stop the ______(34. appear) of plants and animals but we can stop adding to the problem while ____(35. science) search for answers, and laws are passed in nature’s ____(36. defend)
It may not be easy to change your lifestyle completely but some steps are easy to take: cut down the amount of ____(37. drive) you do, use as little plastic as possible. It is also easy to save energy, which also reduces____ (38.house) bills. We must all make a _____(39. person) decision to work for the future of our planet if we want to _____(40. sure) a better world for our grandchildren.
______(34. appear)




A.appearing
B.appearsable
C.appearance
D.disappearance