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1.Tom works in the office. He wants to do something that will keep him fit. He isn't sure what to do so he'd like to be able to try an activity before making a final decision. -> D
2. Sue is a cashier in a supermarket. She works a lot of hours at different times of the day and evening. She'd like to be able to do something creative in her own time. -> A
3. Maria is a student. She would like to do an activity during the day. She enjoys team games and wants to play regularly. -> C
4. David wants to take part in an activity that will give him plenty of contact with other people. He is confident and enjoys performing. -> E
5. Daisy has a busy and stressful job and wants to find a way of relaxing that she can also do at home. She wants to look better and feel better! -> B
Đọc đoạn văn sau và trả lời các câu hỏi:
A balanced diet contains proteins, which are composed of complex amino acids. There are 20 types of amino acids, comprising about 16 percent of the body weight in a lean individual. A body needs all 20 to be healthy. Amino acids can be divided into two groups: essential 5 and nonessential. There are 9 essential amino acids. These are the proteins that the body cannot produce by itself, so a healthy individual must ingest them. The 11 nonessential amino acids, on the other hand, are produced by the body, so it is not necessary to ingest them. Proteins are described as being either high-quality or low-quality, 10 depending on how many of the 9 essential amino acids the food contains. High-quality proteins, typically found in animal meats, are proteins that have ample amounts of the essential amino acids. Low-quality proteins are mainly plant proteins and usually lack one or more of the essential amino acids. Since people who follow a strict vegetarian 15 diet are ingesting only low-quality proteins, they must make sure that their diets contain a variety of proteins, in order to ensure that what is lacking in one food is available in another. This process of selecting a variety of the essential proteins is called protein complementation. Since an insufficient amount of protein in the 20 diet can be crippling, and prolonged absence of proteins can cause death, it is imperative that a vegetarian diet contains an ample amount of the essential proteins.
1. With what topic is this passage primarily concerned?
(A) the 20 types of amino acids
(B) high- and low-quality proteins
(C) the process of complementation
(D) healthy diets for vegetarians
2. The word "lean" in line 3 could be best replaced by
(A) thin
(B) fat
(C) tall
(D) short
3. The word "ingest" in line 7 is closest in meaning to which of the following?
(A) chew
(B) swallow
(C) suck
(D) drink
4. The word "ample" in line 13 is closest in meaning to which of the following?
(A) meager
(B) frequent
(C) substantial
(D) harmful
5. Which of the following would NOT be an example of a low-quality protein?
(A) legumes
(B) apples
(C) grains
(D) tuna
6. As used in line 14, which of the following words is closest in meaning to "strict"?
(A) responsible
(B) casual
(C) harmonious
(D) rigid
7. According to the passage, a vegetarian could die from insufficient protein ingestion if he or she
(A) did not follow a varied and properly protein-complemented diet.
(B) ate too many animal proteins,and could not digest them properly.
(C) did not follow a diet in which nonessential proteins were ingested.
(D) ate too many low-quality proteins.
8. Which of the following is closest in meaning to the word "crippling" as used in line 20?
(A) discouraging
(B) betraying
(C) incapacitating
(D) amazing
9. Which of the following words could best replace the word "prolonged" in line 20?
(A) narrow
(B) hollow
(C) hard-hearted
(D) extended
10. In line 21, the word "imperative" can be best replaced by
(A) crucial
(B) impossible
(C) wonderful
(D) satisfying
11. Which of the following best describes the author's tone in this passage?
(A) forceful
(B) light
(C) casual
(D) argumentative
12. Which statement best describes the organization of this passage?
(A) Contrasting views concerning proteins are compared.
(B) The author moves from a general comment to a specific argument.
(C) A statement is given and its cause is then discussed.
(D) Items are discussed in their order of importance.
Đọc đoạn văn sau và trả lời các câu hỏi:
A balanced diet contains proteins, which are composed of complex amino acids. There are 20 types of amino acids, comprising about 16 percent of the body weight in a lean individual. A body needs all 20 to be healthy. Amino acids can be divided into two groups: essential 5 and nonessential. There are 9 essential amino acids. These are the proteins that the body cannot produce by itself, so a healthy individual must ingest them. The 11 nonessential amino acids, on the other hand, are produced by the body, so it is not necessary to ingest them. Proteins are described as being either high-quality or low-quality, 10 depending on how many of the 9 essential amino acids the food contains. High-quality proteins, typically found in animal meats, are proteins that have ample amounts of the essential amino acids. Low-quality proteins are mainly plant proteins and usually lack one or more of the essential amino acids. Since people who follow a strict vegetarian 15 diet are ingesting only low-quality proteins, they must make sure that their diets contain a variety of proteins, in order to ensure that what is lacking in one food is available in another. This process of selecting a variety of the essential proteins is called protein complementation. Since an insufficient amount of protein in the 20 diet can be crippling, and prolonged absence of proteins can cause death, it is imperative that a vegetarian diet contains an ample amount of the essential proteins.
1. With what topic is this passage primarily concerned?
(A) the 20 types of amino acids
(B) high- and low-quality proteins
(C) the process of complementation
(D) healthy diets for vegetarians
2. The word "lean" in line 3 could be best replaced by
(A) thin
(B) fat
(C) tall
(D) short
3. The word "ingest" in line 7 is closest in meaning to which of the following?
(A) chew
(B) swallow
(C) suck
(D) drink
4. The word "ample" in line 13 is closest in meaning to which of the following?
(A) meager
(B) frequent
(C) substantial
(D) harmful
5. Which of the following would NOT be an example of a low-quality protein?
(A) legumes
(B) apples
(C) grains
(D) tuna
6. As used in line 14, which of the following words is closest in meaning to "strict"?
(A) responsible
(B) casual
(C) harmonious
(D) rigid
7. According to the passage, a vegetarian could die from insufficient protein ingestion if he or she
(A) did not follow a varied and properly protein-complemented diet.
(B) ate too many animal proteins,and could not digest them properly.
(C) did not follow a diet in which nonessential proteins were ingested.
(D) ate too many low-quality proteins.
8. Which of the following is closest in meaning to the word "crippling" as used in line 20?
(A) discouraging
(B) betraying
(C) incapacitating
(D) amazing
9. Which of the following words could best replace the word "prolonged" in line 20?
(A) narrow
(B) hollow
(C) hard-hearted
(D) extended
10. In line 21, the word "imperative" can be best replaced by
(A) crucial
(B) impossible
(C) wonderful
(D) satisfying
11. Which of the following best describes the author's tone in this passage?
(A) forceful
(B) light
(C) casual
(D) argumentative
12. Which statement best describes the organization of this passage?
(A) Contrasting views concerning proteins are compared.
(B) The author moves from a general comment to a specific argument.
(C) A statement is given and its cause is then discussed.
(D) Items are discussed in their order of importance.
Read the passage and answer the following questions: Carbohydrates, which are sugars, are an essential part of a healthy diet. They provide the main source of energy for the body, and they also function to flavor and sweeten foods. Carbohydrates range from simple sugars like glucose to complex sugars such as amylose and 5 amylopectin. Nutritionists estimate that carbohydrates should make up about one-fourth to one-fifth of a person's diet. This translates to about 75-100 grams of carbohydrates per day.
A diet that is deficient in carbohydrates can have an adverse effect 10 on a person's health. When the body lacks a sufficient amount of carbohydrates it must then use its protein supplies for energy, a process called gluconeogenesis. This, however, results in a lack of necessary protein, and further health difficulties may occur. A lack of carbohydrates can also lead to ketosis, a build-up of ketones 15 in the body that causes fatigue, lethargy, and bad breath. 1. What is the main idea of this passage?
(A) Carbohydrates are needed for good health.
(B) Carbohydrates prevent a build-up of proteins.
(C) Carbohydrates can lead to ketosis.
(D) Carbohydrates are an expendable part of a good diet.
2. The word "function" as used in line 3 refers to which of the following?
(A) neglect
(B) serve
(C) dissolve
(D) profess
3. The word "range" as used in line 3 is closest in meaning to which of the following?
(A) probe
(B) proceed
(C) hail
(D) extend
4. In line 5, the word "estimate" could best be replaced by
(A) disbelieve
(B) declare
(C) calculate
(D) wonder
5. According to the passage, what do most nutritionists suggest?
(A) Sufficient carbohydrates will prevent gluconeogenesis.
(B) Carbohydrates are simple sugars called glucose.
(C) Carbohydrates should make up about a quarter of a person's daily diet.
(D) Carbohydrates should be eaten in very small quantities.
6. Which of the following do carbohydrates NOT do?
(A) prevent ketosis
(B) cause gluconeogenesis
(C) provide energy for the body
(D) flavor and sweeten food
7. Which of the following words could best replace "deficient" as used in line 9?
(A) outstanding
(B) abundant
(C) insufficient
(D) unequal
8. What does the word "this" refer to in line 13?
(A) using protein supplies for energy
(B) converting carbohydrates to energy
(C) having a deficiency in carbohydrates
(D) having an insufficient amount of protein
9. According to the passage, which of the following does NOT describe carbohydrates?
(A) a protein supply
(B) a necessity
(C) a range of sugars
(D) an energy source
10. The word "lack" in line 13 is most similar to which of the following?
(A) plethora
(B) shortage
(C) derivation
(D) commission
11. Which of the following best describes the author's tone?
(A) sensitive
(B) emotional
(C) informative
(D) regretful
12. Which of the following best describes the organization of this passage?
(A) cause and result
(B) comparison and contrast
(C) specific to general
(D) definition and example
Read the passage and answer the following questions:
Carbohydrates, which are sugars, are an essential part of a healthy diet. They provide the main source of energy for the body, and they also function to flavor and sweeten foods. Carbohydrates range from simple sugars like glucose to complex sugars such as amylose and 5 amylopectin. Nutritionists estimate that carbohydrates should make up about one-fourth to one-fifth of a person's diet. This translates to about 75-100 grams of carbohydrates per day.
A diet that is deficient in carbohydrates can have an adverse effect 10 on a person's health. When the body lacks a sufficient amount of carbohydrates it must then use its protein supplies for energy, a process called gluconeogenesis. This, however, results in a lack of necessary protein, and further health difficulties may occur. A lack of carbohydrates can also lead to ketosis, a build-up of ketones 15 in the body that causes fatigue, lethargy, and bad breath.
1. What is the main idea of this passage?
(A) Carbohydrates are needed for good health.
(B) Carbohydrates prevent a build-up of proteins.
(C) Carbohydrates can lead to ketosis.
(D) Carbohydrates are an expendable part of a good diet.
2. The word "function" as used in line 3 refers to which of the following?
(A) neglect
(B) serve
(C) dissolve
(D) profess
3. The word "range" as used in line 3 is closest in meaning to which of the following?
(A) probe
(B) proceed
(C) hail
(D) extend
4. In line 5, the word "estimate" could best be replaced by
(A) disbelieve
(B) declare
(C) calculate
(D) wonder
5. According to the passage, what do most nutritionists suggest?
(A) Sufficient carbohydrates will prevent gluconeogenesis.
(B) Carbohydrates are simple sugars called glucose.
(C) Carbohydrates should make up about a quarter of a person's daily diet.
(D) Carbohydrates should be eaten in very small quantities.
6. Which of the following do carbohydrates NOT do?
(A) prevent ketosis
(B) cause gluconeogenesis
(C) provide energy for the body
(D) flavor and sweeten food
7. Which of the following words could best replace "deficient" as used in line 9?
(A) outstanding
(B) abundant
(C) insufficient
(D) unequal
8. What does the word "this" refer to in line 13?
(A) using protein supplies for energy
(B) converting carbohydrates to energy
(C) having a deficiency in carbohydrates
(D) having an insufficient amount of protein
9. According to the passage, which of the following does NOT describe carbohydrates?
(A) a protein supply
(B) a necessity
(C) a range of sugars
(D) an energy source
10. The word "lack" in line 13 is most similar to which of the following?
(A) plethora
(B) shortage
(C) derivation
(D) commission
11. Which of the following best describes the author's tone?
(A) sensitive
(B) emotional
(C) informative
(D) regretful
12. Which of the following best describes the organization of this passage?
(A) cause and result
(B) comparison and contrast
(C) specific to general
(D) definition and example
Đọc đoạn văn sau và trả lời các câu hỏi:
Since the world has become industrialized, there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tigers, for instance, which once roamed the jungles in vast numbers, now number only about 2,300, and by 5 the year 2025 their population is estimated to be down to zero. What is alarming about the case of the Bengal tiger is that this extinction will have been caused almost entirely by poachers who, according to some sources, are not interested in material gain but in personal gratification. This is an example of the callousness that is part 10 of what is causing the problem of extinction. Animals like the Bengal tiger, as well as other endangered species, are a valuable part of the world's ecosystem. International laws protecting these animals must be enacted to ensure their survival, and the survival of our planet.
15 Countries around the world have begun to deal with the problem in various ways. Some countries, in order to circumvent the problem, have allocated large amounts of land to animal reserves. They then charge admission to help defray the costs of maintaining the parks, 20 and they often must also depend on world organizations for support. With the money they get, they can invest in equipment and patrols to protect the animals. Another solution that is an attempt to stem the tide of animal extinction is an international boycott of products made from endangered species. This seems fairly effective, but it 25 will not, by itself, prevent animals from being hunted and killed.
1. What is the main topic of the passage?
(A) the Bengal tiger
(B) international boycotts
(C) endangered species
(D) problems with industrialization
2. Which of the following is closest in meaning to the word "alarming" in line 6?
(A) dangerous
(B) serious
(C) gripping
(D) distressing
3. Which of the following could best replace the word "case" as used in line 6?
(A) act
(B) situation
(C) contrast
(D) trade
4. The word "poachers" as used in line 7 could be best replaced by which of the following?
(A) illegal hunters
(B) enterprising researchers
(C) concerned scientists
(D) trained hunters
5. The word "callousness" in line 9 could best be replaced by which of the following?
(A) indirectness
(B) independence
(C) incompetence
(D) insensitivity
6. The above passage is divided into two paragraphs in order to contrast
(A) a problem and a solution
(B) a statement and an illustration
(C) a comparison and a contrast
(D) specific and general information
7. What does the word "this" refer to in line 9?
(A) endangered species that are increasing
(B) Bengal tigers that are decreasing
(C) poachers who seek personal gratification
(D) sources that may not be accurate
8. Where in the passage does the author discuss a cause of extinction?
(A) Since the world . . . down to zero.
(B) What is alarming . . . personal gratification.
(C) Country around . . . for support.
(D) With the money . . . dangered species.
9. Which of the following could best replace the word "allocated" in line 17?
(A) set aside
(B) combined
(C) organized
(D) taken off
10. The word "defray" in line 19 is closest in meaning to which of the following?
(A) lower
(B) raise
(C) make a payment on
(D) make an investment toward
11. The author uses the phrase "stem the tide" in line 22-23 to mean
(A) touch
(B) stop
(C) tax
(D) save
12. Which of the following best describes the author's attitude?
(A) forgiving
(B) concerned
(C) vindictive
(D) surprised
Đọc đoạn văn sau và trả lời các câu hỏi:
Since the world has become industrialized, there has been an increase in the number of animal species that have either become extinct or have neared extinction. Bengal tigers, for instance, which once roamed the jungles in vast numbers, now number only about 2,300, and by 5 the year 2025 their population is estimated to be down to zero. What is alarming about the case of the Bengal tiger is that this extinction will have been caused almost entirely by poachers who, according to some sources, are not interested in material gain but in personal gratification. This is an example of the callousness that is part 10 of what is causing the problem of extinction. Animals like the Bengal tiger, as well as other endangered species, are a valuable part of the world's ecosystem. International laws protecting these animals must be enacted to ensure their survival, and the survival of our planet.
15 Countries around the world have begun to deal with the problem in various ways. Some countries, in order to circumvent the problem, have allocated large amounts of land to animal reserves. They then charge admission to help defray the costs of maintaining the parks, 20 and they often must also depend on world organizations for support. With the money they get, they can invest in equipment and patrols to protect the animals. Another solution that is an attempt to stem the tide of animal extinction is an international boycott of products made from endangered species. This seems fairly effective, but it 25 will not, by itself, prevent animals from being hunted and killed.
1. What is the main topic of the passage?
(A) the Bengal tiger
(B) international boycotts
(C) endangered species
(D) problems with industrialization
2. Which of the following is closest in meaning to the word "alarming" in line 6?
(A) dangerous
(B) serious
(C) gripping
(D) distressing
3. Which of the following could best replace the word "case" as used in line 6?
(A) act
(B) situation
(C) contrast
(D) trade
4. The word "poachers" as used in line 7 could be best replaced by which of the following?
(A) illegal hunters
(B) enterprising researchers
(C) concerned scientists
(D) trained hunters
5. The word "callousness" in line 9 could best be replaced by which of the following?
(A) indirectness
(B) independence
(C) incompetence
(D) insensitivity
6. The above passage is divided into two paragraphs in order to contrast
(A) a problem and a solution
(B) a statement and an illustration
(C) a comparison and a contrast
(D) specific and general information
7. What does the word "this" refer to in line 9?
(A) endangered species that are increasing
(B) Bengal tigers that are decreasing
(C) poachers who seek personal gratification
(D) sources that may not be accurate
8. Where in the passage does the author discuss a cause of extinction?
(A) Since the world . . . down to zero.
(B) What is alarming . . . personal gratification.
(C) Country around . . . for support.
(D) With the money . . . dangered species.
9. Which of the following could best replace the word "allocated" in line 17?
(A) set aside
(B) combined
(C) organized
(D) taken off
10. The word "defray" in line 19 is closest in meaning to which of the following?
(A) lower
(B) raise
(C) make a payment on
(D) make an investment toward
11. The author uses the phrase "stem the tide" in line 22-23 to mean
(A) touch
(B) stop
(C) tax
(D) save
12. Which of the following best describes the author's attitude?
(A) forgiving
(B) concerned
(C) vindictive
đI (not do)......wouldn't do....that if I ( be )........were.....you
I would have come soojer if I ( know )......had known......you were here
he never does homework. If he ( do)....did.....his homework, he (not worry ).........wouldn't worry.......about his exam
It's too bab we lost the game. If you ( play).....had played.....for us, we ( win ) ...would have won....
What will you (do).......do.....if she refuses your invitation?
You (be)...will be...ill if you drink that water
if today (be).....were.....Sunday, we (go)....would go....to the beach
unless they (pass).....passed......their examinations, they would join the army
if tom(go)....went....... to bed earlier, he would not be so tired
had we know your address, we(write)......would have written....you a letter
if it's raining heavil, we (not go)......won't go.....for a donkey ride
if he(try)...tries......hard, he'll pass the examination
i could understand the french teacher if she ( speak )....spoke.......more slowly
If she ( not be ).....hadn't been......busy, she would have come to the party
If you (see)...see....Mary today, please (ask)....ask.....her to call me
B. viết lại những câu sau sao cho nghĩa của câu không thay doi
1. that man doesn't work hard. he can't earn more money
if that man worked hard, he could earn more money
2. i don't tell him the answer because he is from home
if he weren't from home, i would tell him the answer
3. my friends and i don't have enough money, so we will not buy a house of our own
if my friend and I had enough money, we would buy a house of our own
4. the weather isn't better now, so we can't go for a walk
if the weather were better now, we could go for a walk
5.i don't know his address, and i don't give it to you
if i knew his address, i would give it to you
6. he does not work slowly enough, so he makes many mistakes
if he worked slowly enough, he wouldn't make many mistakes
7. I am not sent to prison. She does't visit me
if i were sent to prison, she would visit me
8.I don't win a big prize in a lottery, so I don't give up my job
if i won a big prize in a lottery, i would give up my job
9.the doctor can't see many patients because he is so late
if he weren't so late, the doctor could see many patients
10. We don't visit them in Hanoi because tickets are expensive
if tickets weren't expensive, we would visit them in hanoi
Đọc đoạn văn sau và trả lời các câu hỏi:
A pilot cannot fly a plane by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot 5 how fast nearby planes are moving.
The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar, however, the 10 waves are radio waves instead of sound waves. Radio waves travel at the speed of light, about 300,000 kilometers in one second. A radar set sends out a short burst of radiation waves. Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set, a trained 15 technician can determine the distance between the radar set and other objects. The word "radar," in fact, gets its name from the term "radio detection and ranging." "Ranging" is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots, radar is essential for air traffic control, 20 tracking ships at sea, and for tracking weather systems and storms.
1. What is the main topic of this passage?
(A) the nature of radar
(B) types of ranging
(C) alternatives to radar
(D) history of radar
2. In line 2, the word "dense" could be replaced by
(A) cold
(B) wet
(C) dark
(D) thick
3. According to the passage, what can radar detect besides location of objects?
(A) size
(B) weight
(C) speed
(D) shape
4. The word "shouts" in line 8 is most similar in meaning to which of the following?
(A) eavesdrops
(B) yells
(C) confesses
(D) whispers
5. Which of the following words best describes the tone of this passage?
(A) argumentative
(B) imaginative
(C) explanatory
(D) humorous
6. The phrase "a burst" in line 13 is closest in meaning in which of the following?
(A) an attachment
(B) a discharge
(C) a stream
(D) a ray
7. The word "it" in line 13 refers to which of the following?
(A) a radar set
(B) a short burst
(C) a radiation wave
(D) light
8. Which of the following could best replace the word "bounce" in line 13?
(A) overturn
(B) groove
(C) extend
(D) rebound
9. Which type of waves does radar use?
(A) sound
(B) heat
(C) radio
(D) light
10. The word "tracking" in line 20 is closest in meaning to which of the following?
(A) repairing
(B) searching for
(C) glancing at
(D) fighting
11. Which of the following would most likely be the topic of the next paragraph?
(A) other uses of radar
(B) uses of sonar technology
(C) other technology used by pilots
(D) a history of flying
12. What might be inferred about radar?
(A) It takes the place of a radio.
(B) It gave birth to the invention of the airplane.
(C) It developed from a study of sound waves.
(D) It has improved navigational safety.
Đọc đoạn văn sau và trả lời các câu hỏi:
A pilot cannot fly a plane by sight alone. In many conditions, such as flying at night and landing in dense fog, a pilot must use radar, an alternative way of navigating. Since human eyes are not very good at determining speeds of approaching objects, radar can show a pilot 5 how fast nearby planes are moving.
The basic principle of radar is exemplified by what happens when one shouts in a cave. The echo of the sounds against the walls helps a person determine the size of the cave. With radar, however, the 10 waves are radio waves instead of sound waves. Radio waves travel at the speed of light, about 300,000 kilometers in one second. A radar set sends out a short burst of radiation waves. Then it receives the echoes produced when the waves bounce off objects. By determining the time it takes for the echoes to return to the radar set, a trained 15 technician can determine the distance between the radar set and other objects. The word "radar," in fact, gets its name from the term "radio detection and ranging." "Ranging" is the term for detection of the distance between an object and the radar set. Besides being of critical importance to pilots, radar is essential for air traffic control, 20 tracking ships at sea, and for tracking weather systems and storms.
1. What is the main topic of this passage?
(A) the nature of radar
(B) types of ranging
(C) alternatives to radar
(D) history of radar
2. In line 2, the word "dense" could be replaced by
(A) cold
(B) wet
(C) dark
(D) thick
3. According to the passage, what can radar detect besides location of objects?
(A) size
(B) weight
(C) speed
(D) shape
4. The word "shouts" in line 8 is most similar in meaning to which of the following?
(A) eavesdrops
(B) yells
(C) confesses
(D) whispers
5. Which of the following words best describes the tone of this passage?
(A) argumentative
(B) imaginative
(C) explanatory
(D) humorous
6. The phrase "a burst" in line 13 is closest in meaning in which of the following?
(A) an attachment
(B) a discharge
(C) a stream
(D) a ray
7. The word "it" in line 13 refers to which of the following?
(A) a radar set
(B) a short burst
(C) a radiation wave
(D) light
8. Which of the following could best replace the word "bounce" in line 13?
(A) overturn
(B) groove
(C) extend
(D) rebound
9. Which type of waves does radar use?
(A) sound
(B) heat
(C) radio
(D) light
10. The word "tracking" in line 20 is closest in meaning to which of the following?
(A) repairing
(B) searching for
(C) glancing at
(D) fighting
11. Which of the following would most likely be the topic of the next paragraph?
(A) other uses of radar
(B) uses of sonar technology
(C) other technology used by pilots
(D) a history of flying
12. What might be inferred about radar?
(A) It takes the place of a radio.
(B) It gave birth to the invention of the airplane.
(C) It developed from a study of sound waves.
(D) It has improved navigational safety.
Đọc đoạn văn sau và trả lời các câu hỏi:
The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. In the 1960s, scientists discovered byproducts of the pesticide DDT in the birds' eggs, which caused them to be too soft to survive. The use of the pesticide had been 5 banned in the United States, but the falcons were eating migratory birds from other places where DDT was still used. In order to increase the survival rate, scientists were raising the birds in laboratories and then releasing them into mountainous areas. This practice achieved only moderate success, however, because many of the birds raised 10 in captivity could not survive in the wild.
There is now, however, a new alternative to releases in the wild. A falcon that has been given the name Scarlett chose to make her home on a ledge of the 33rd floor of a Baltimore, Maryland, office 15 building rather than in the wild, and, to the surprise of the scientists, she has managed to live quite well in the city. Following this example, programs have been initiated that release birds like Scarlett into cities rather than into their natural wild habitat. These urban releases are becoming a common way to strengthen the species. Urban homes 20 have several benefits for the birds that wild spots do not. First, there is an abundance of pigeons and small birds as food sources. The peregrine in the city is also protected from its main predator, the great horned owl. Urban release programs have been very successful in reestablishing the peregrine falcons along the East Coast. Though 25 they are still an endangered species, their numbers increased from about 60 nesting pairs in 1975 to about 700 pairs in 1992. In another decade the species may flourish again, this time without human help.
1. What is the main topic of the passage?
(A) survival of peregrine falcons
(B) releases into the wild
(C) endangered species
(D) harmful effects of pesticides
2. In line 1, the phrase "indigenous to" could be best replaced by
(A) typical of
(B) protected by
(C) adapted to
(D) native to
3. The word "byproducts" in line 3 could best be replaced by which of the following?
(A) derivatives
(B) proceeds
(C) chemicals
(D) elements
4. In line 5, the word "banned" could be best replaced by
(A) authorized
(B) developed
(C) disseminated
(D) prohibited
5. Which of the following words is closest in meaning to the word "rate," as used in line 7?
(A) speed
(B) percentage
(C) continuation
(D) behavior
6. In line 7, the word "raising" most probably means
(A) breeding
(B) elevating
(C) collecting
(D) measuring
7. Why were the peregrine falcons in danger?
(A) because of pesticides used by American farmers
(B) because they migrated to countries where their eggs could not survive
(C) because they ate birds from other countries where DDT was still used
(D) because they were prized by hunters and hunted to near extinction
8. The word "releases" as used in line 12 most probably means
(A) internment
(B) regression
(C) distribution
(D) possessions
9. The word "ledge" in line 14 is closest in meaning to
(A) window
(B) wall
(C) terrace
(D) shelf
10. According to the passage, which of the following is NOT a reason why a falcon might choose to live in a city?
(A) There are high places to nest.
(B) There are other falcons nearby.
(C) There is a lack of predators.
(D) There is abundant food.
11. According to the passage, which of the following are the falcon's main predators?
(A) pigeons
(B) rattlesnakes
(C) owls
(D) humans
12. As used in line 20, the word "spots" could best be replaced by
(A) places
(B) dilemmas
(C) jungles
(D) materials
13. According to the passage, where have the release programs been the most successful?
(A) in office buildings
(B) on the East Coast
(C) in mountainous areas
(D) in the wild
Đọc đoạn văn sau và trả lời các câu hỏi:
The peregrine falcon, a predatory bird indigenous to North America, was once in danger of extinction. In the 1960s, scientists discovered byproducts of the pesticide DDT in the birds' eggs, which caused them to be too soft to survive. The use of the pesticide had been 5 banned in the United States, but the falcons were eating migratory birds from other places where DDT was still used. In order to increase the survival rate, scientists were raising the birds in laboratories and then releasing them into mountainous areas. This practice achieved only moderate success, however, because many of the birds raised 10 in captivity could not survive in the wild.
There is now, however, a new alternative to releases in the wild. A falcon that has been given the name Scarlett chose to make her home on a ledge of the 33rd floor of a Baltimore, Maryland, office 15 building rather than in the wild, and, to the surprise of the scientists, she has managed to live quite well in the city. Following this example, programs have been initiated that release birds like Scarlett into cities rather than into their natural wild habitat. These urban releases are becoming a common way to strengthen the species. Urban homes 20 have several benefits for the birds that wild spots do not. First, there is an abundance of pigeons and small birds as food sources. The peregrine in the city is also protected from its main predator, the great horned owl. Urban release programs have been very successful in reestablishing the peregrine falcons along the East Coast. Though 25 they are still an endangered species, their numbers increased from about 60 nesting pairs in 1975 to about 700 pairs in 1992. In another decade the species may flourish again, this time without human help.
1. What is the main topic of the passage?
(A) survival of peregrine falcons
(B) releases into the wild
(C) endangered species
(D) harmful effects of pesticides
2. In line 1, the phrase "indigenous to" could be best replaced by
(A) typical of
(B) protected by
(C) adapted to
(D) native to
3. The word "byproducts" in line 3 could best be replaced by which of the following?
(A) derivatives
(B) proceeds
(C) chemicals
(D) elements
4. In line 5, the word "banned" could be best replaced by
(A) authorized
(B) developed
(C) disseminated
(D) prohibited
5. Which of the following words is closest in meaning to the word "rate," as used in line 7?
(A) speed
(B) percentage
(C) continuation
(D) behavior
6. In line 7, the word "raising" most probably means
(A) breeding
(B) elevating
(C) collecting
(D) measuring
7. Why were the peregrine falcons in danger?
(A) because of pesticides used by American farmers
(B) because they migrated to countries where their eggs could not survive
(C) because they ate birds from other countries where DDT was still used
(D) because they were prized by hunters and hunted to near extinction
8. The word "releases" as used in line 12 most probably means
(A) internment
(B) regression
(C) distribution
(D) possessions
9. The word "ledge" in line 14 is closest in meaning to
(A) window
(B) wall
(C) terrace
(D) shelf
10. According to the passage, which of the following is NOT a reason why a falcon might choose to live in a city?
(A) There are high places to nest.
(B) There are other falcons nearby.
(C) There is a lack of predators.
(D) There is abundant food.
11. According to the passage, which of the following are the falcon's main predators?
(A) pigeons
(B) rattlesnakes
(C) owls
(D) humans
12. As used in line 20, the word "spots" could best be replaced by
(A) places
(B) dilemmas
(C) jungles
(D) materials
13. According to the passage, where have the release programs been the most successful?
(A) in office buildings
(B) on the East Coast
(C) in mountainous areas
(D) in the wild
Ms. Turner is not coming in to work this Friday, ------- can she make it to Saturday’s event. * 1 điểm (A) yet (B) afterwards (C) nor (D) and