Read the following passage and mark the letter A, B, C or B on your answer sheet to indicate the correct answer to each of the questions from 30 to 37. Many ants forage across the countryside in lar...

LQ

Lê Quỳnh Anh

12 tháng 8 2019

Read the following passage and mark the letter A, B, C or B on your answer sheet to indicate the correct answer to each of the questions from 30 to 37. Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route Line by intermittently touching its stinger to the ground and depositing a tiny...

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Read the following passage and mark the letter A, B, C or B on your answer sheet to indicate the correct answer to each of the questions from 30 to 37.

Many ants forage across the countryside in large numbers and undertake mass migrations; these activities proceed because one ant lays a trail on the ground for the others to follow. As a worker ant returns home after finding a source of food, it marks the route Line by intermittently touching its stinger to the ground and depositing a tiny amount of trail pheromone – a mixture of chemicals that delivers diverse messages as the context changes.

These trails incorporate no directional information and may be followed by other ants in either direction. Unlike some other messages, such as the one arising from a dead ant, a food trail has to be kept secret from members of other species. It is not surprising then that ant species use a wide variety of compounds as trail pheromones. Ants can be extremely sensitive to these signals. Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth. The vapor of the evaporating pheromone over the trail guides an ant along the way, and the ant detects this signal with receptors in its antennae. A trail pheromone will evaporate to furnish the highest concentration of vapor right over the trail, in what is called a vapor space. In following the trail, the ant moves to the right and left, oscillating from side to side across the line of the trail itself, bringing first one and then the other antenna into the vapor space. As the ant moves to the right, its left antenna arrives in the vapor space. The signal it receives causes it to swing to the left, and the ant then pursues this new course until its right antenna reaches the vapor space. It then swings back to the right, and so weaves back and forth down the trail.

The author mentions the trail pheromone of the leafcutter ant in line 11 to point out

A. how little pheromone is needed to mark a trail

B. the different types of pheromones ants can produce

C. a type of ant that is common in many parts of the world

D. that certain ants can produce up to one milligram of pheromone

#Mẫu giáo

1

DH

Dương Hoàn Anh

12 tháng 8 2019

Đáp án A

Tác giả đề cập đến dấu vết pheromone của kiến cắn lá ở dòng 11 để chỉ ra

A. cần rất ít Pheromone để đánh dấu một dấu vết

B. các loại pheromones khác nhau mà kiến có thể sản sinh

C. một loại kiến phổ biến ở nhiều nơi trên thế giới

D. Một số kiến có thể sản sinh đến một miligam pheromone

Dẫn chứng: Investigators working with the trail pheromone of the leafcutter ant Atta texana calculated that one milligram of this substance would suffice to lead a column of ants three times around Earth.

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AD

anh đức trịnh

31 tháng 3 2022

. 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. The volume of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly, something must be done, but it is difficult to persuade people to change habits and leaves their cars at...

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. 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.

The volume of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly, something must be done, but it is difficult to persuade people to change habits and leaves their cars at home.

One possible approach is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who breaks the law. In addition, drivers could be required to pay for using particular routes at differ times of the day. This system, known as road pricing has already been introduced in a number of cities, using a special electronic card fixed to the windscreen of the car. Of course, the most important thing is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares kept at an acceptable level.

Glossary: persuade (v.) (~ sb to do sth): thuyết phục (ai làm gì)

tough (adj.) = difficult; strict: khó; nghiêm khăc

a tough fine: phạt tiền thật nặng reliable (adj.): đáng tin cậy

38. The word expand in paragraph 1 is closest in meaning to ____________________.

A. decrease B. increase C. reduce D. develop

39. Which of the following is NOT mentioned as a problem caused by more traffic?

A. serious air pollution B. greater risks of accidents

C. people’s habits D. very long delays

40. The most important thing to encourage people to use public transport is _________________

A. high parking fees B. good public transport

C. road using fees D. high charges for public transport

41. The verb give up is closest in meaning to ______________________.

A. continue using B. encourage C. get bored with D. stop using

42. We can learn from the text that _______________.

A. it is easy for people to change their habits

B. many people will not drive expensive cars

C. more people will use public transport if it is cheap, reliable and comfortable

D. pollution and lengthy delays cause people to leave their cars at home

#Tiếng anh lớp 7

1

HN

Hiếu Nguyễn

31 tháng 3 2022

38. B
39. C
40. B
41. D
42. D

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DM

Dương Minh

26 tháng 9 2019

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.Which of the following can be inferred from the passage? A. Animal and plant species which pose threats to humans will die out soon. B. Saving popular animal and plant species should be given a high priority. C. Humans will make changes in their lifestyles to save other species. D. The dilemma humans face between maintaining their lives and saving other...

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#Tiếng anh lớp 9

1

NH

Nguyen Hoang Hai

26 tháng 9 2019

Đáp án: D

Giải thích: Mấu chốt của câu này là các em phải đọc hết đoạn cuối để suy ra cái mà tác giả muốn hướng tới: Con người phải đối mặt với sự lựa chọn khó khăn: sự sống của mình hay cứu lấy động vật.

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VN

Vương Ngọc Ánh

16 tháng 4 2022

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 from 22 to 26A. Read the passage carefully, then choose the correct answer.The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the...

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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 from 22 to 26

A. Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil B. contamination of soil

C. reduction of nutrients D. loss of water supply

#Tiếng anh lớp 11

2

PV

Phạm Vĩnh Linh

16 tháng 4 2022

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 from 22 to 26

A. Read the passage carefully, then choose the correct answer.

The ruined temples of Angkor are perhaps one of the mast impressive Seven Wonders of the World. Located in modern day Cambodia near Lake TonIe Sap, the largest freshwater lake in Asia, Angkor was the seat of power for the Khmer Empire from the ninth to the fifteenth century. The ruins of Angkor are documented as same .of the mast impressive ones in the world, rivaling the pyramids of Giza in Egypt. Why this mighty civilization died out is a question that archeologists are now only beginning to ponder. The answer, it turns out, may be linked with the availability of fresh water.

One possible explanation far the downfall of the Khmer Empire has to do with the inhabitants' irrigation system. The temple and palaces of Angkor were constructed around a series of artificial reservoirs and canals which were annually flooded to capacity by the Mekong River. Once filled, they were used to irrigate the surrounding rice patties and farmland during the course of the year. Farmers were completely dependent upon the water for their crucial rice crop. Without consistent irrigation, the farmers would have been unable to maintain functional crop production.

Scientists speculate that toward the end of the Khmer Empire the hydraulic systems of the reservoirs and canals broke down. The construction of hundreds of sandstone temples and palaces required an enormous amount of physical labor. In addition, as the capital of the Khmer Empire, Angkor contained upwards of one hundred thousand people who resided in and around Angkor. In order to feed so many people, the local farmers were driven to grow food quicker and more efficiently. After centuries of continual use, the irrigation system was pushed beyond its capacity. Soil erosion, nutrient depletion, and the loss of water led to decrease in the food supply. With less food available, the people of Angkor slowly began to migrate to other parts of Cambodia thus leaving the marvelous city of Angkor to be swallowed by the jungle. Therefore, it is speculated that the Khmer Empire may have fallen victim to its own decrepit infrastructure.

22. What is the passage mainly about?

A. Modern day agricultural procedures in Cambodia.

B. A possible explanation for the, decline of a civilization.

C. The essential role water plays in farming.

D. Religious temples of the ancient Khmer Empire.

23. The passage preceding the passage most likely discusses ______.

A. architecture of ancient Asian civilization

B. religious practices of the people of Angkor

C. the form of government practiced by the Khmer Empire

D. the other six wonders of the world

24. According to the passage, Lake Tonle Sap in Cambodia ______.

A. is an enormous fresh body of water in Asia

B. was unable to supply enough fish for the people of Angkor

C. became polluted due to a population explosion

D. is one of the Seven Wonders of the World

25. Why does the author mention the hydraulic systems of the reservoirs?

A. They supplied irrigation from the Indian Ocean.

B. They became non-functional due to overuse.

C. They were destroyed by nearby warrior tribes.

D. They helped transport the sandstones for constructing temples.

26. It can be inferred from the passage that the inhabitants of the Khmer Empire ______.

A. were intentionally starved by the farmers

B. lost their food source due to excess rainfall

C. supplemented their diets with 'meat hunted in the nearby jungles

D. depended upon rice as their main source of food

27. All the following are mentioned as events that can affect food supply EXCEPT.

A. erosion of soil B. contamination of soil

C. reduction of nutrients D. loss of water supply

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E

ERROR

16 tháng 4 2022

22-b 23-d 24-a 25-b 26-d 27-b

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DM

Dương Minh

5 tháng 10 2017

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.Which of the following can result from the loss of one species in a food chain? A. The connections among the creatures in the food chain become closer. B. Larger predators will look for other types of prey. C. There might be a lack of food resources for some other species. D. Animals will shift to another food chain in the...

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#Tiếng anh lớp 9

1

NH

Nguyen Hoang Hai

5 tháng 10 2017

Đáp án: C

Giải thích: Dẫn chứng nằm ở 2 dòng cuối của đoạn 1.

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DN

Dương Nguyễn

3 tháng 3 2022

IX. 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. The volumn of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible approach is to make it...

Đọc tiếp

IX. 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.

The volumn of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.

One possible approach is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who breaks the law. In addition, drivers could be required to pay for using particular routes at different times of the day. This system, known as “road pricing”, has already been introduced in a number of cities, using a special electronic card fixed to the windscreen of the car
Of course, the most important thing is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares kept at an acceptable level.

1. The word expand in paragraph 1 is closet meaning to_____

A. decrease B. increase C. reduce D.develop

2. Which of the following is NOT mentioned as a problem caused by more traffic?

A.a serious air pollution B. greater risks of accidents

C. people’s habits D. very long delays

3. The most important thing to encourage people to use public transport is______

A.high parking fees B. good public transport

C. road using fees D. high charges for public transport

4. The verb “give up” is closet meaning to __________

A. continue using B. encourage

C. get bored with D. stop using

5. We can learn from the text that___________

A. it is easy for people change their habits.

B. many people will not drive expensive cares

C. more people will use public transport if it is cheap, reliable and comfortable

D. air pollution and lengthy delays cause people to leave their cars at home

GIÚP MK NHA !!!

#Tiếng anh lớp 7

0

NN

no name

4 tháng 3 2022

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. The volumn of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.One possible approach is to make it more...

Đọc tiếp

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.

The volumn of traffic in many cities in the world today continues to expand. This caused many problems, including serious air pollution, lengthy delays, and the greater risk of accidents. Clearly something must be done, but it is often difficult to persuade people to change their habits and leave their cars at home.

One possible approach is to make it more expensive for people to use their cars by increasing charges for parking and bringing in tougher fines for anyone who breaks the law. In addition, drivers could be required to pay for using particular routes at different times of the day. This system, known as “road pricing”, has already been introduced in a number of cities, using a special electronic card fixed to the windscreen of the car
Of course, the most important thing is to provide good public transport. However, to get people to give up the comfort of their cars, public transport must be felt to be reliable, convenient and comfortable, with fares kept at an acceptable level.

1. The word expand in paragraph 1 is closet meaning to_____

A. decrease B. increase C. reduce D.develop

2. Which of the following is NOT mentioned as a problem caused by more traffic?

A.a serious air pollution B. greater risks of accidents

C. people’s habits D. very long delays

3. The most important thing to encourage people to use public transport is______

A.high parking fees B. good public transport

C. road using fees D. high charges for public transport

4. The verb “give up” is closet meaning to __________

A. continue using B. encourage

C. get bored with D. stop using

5. We can learn from the text that___________