Danh sách câu hỏi:

Câu 5:

There are ______ that not only governments but also individuals should join hands to tackle

Xem đáp án

Câu 7:

My aunt gave me a ______ hat on my 16th birthday

Xem đáp án

Câu 10:

______, we stay inside the house

Xem đáp án

Câu 11:

By next Saturday, Tom ______ a whole month without smoking a cigarette

Xem đáp án

Câu 14:

You should accept the Nokia mobile phone as a 16-birthday present from your parents delightedly. Don’t ______. 

Xem đáp án

Câu 15:

New machinery has enhanced the company’s productivity and ______. 

Xem đáp án

Câu 16:

It is possible ______ may assist some trees in saving water in the winter. 

Xem đáp án

Câu 17:

______, no one was absent from the farewell party last night

Xem đáp án

Câu 18:

Unless you _______ well-trained, you ______ to the company

Xem đáp án

Câu 22:

The minister came under fire for his rash decision to close the factory

Xem đáp án

Câu 23:

“Let me bring something to your party, won’t you?” - Laura: “_______”

Xem đáp án

Câu 24:

Daniel: “Do you think it’s bad to keep all the candy to yourself?” - Jacob: “_______”

Xem đáp án

Câu 25:

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 25 to 29.

RED NOSE DAY

In 1985, there was a terrible famine in the African country of Sudan. Richard Curtis, a British comedy writer, and his friend, Alexander Mendis saw the news reports and wanted to make (25)______. They began a charity called Comic relief, with the help of charity worker Jane Tewson. In 1988, the charity had an idea of selling red plastic noses to raise money. It was the (26) ______ success and selling red noses became a regular part of the Britain’s charity to organize sponsored events. In 1997, BBC television supported Comic Relief with a whole afternoon and evenings of special TV programmes, calling it Red Nose Day. People around Britain organized fund-raising events around the same time and sent their money to Red Nose Day. In (27) ______, the event raised over £27 million for charity. Since it began, Comic Relief has raised more than £600 million, (28) ______ the generosity of the British public and the help of the celebrities (29)_____ take part. The charity produces books, CDs and other items help to raise money. In 2001, JK Rowling wrote two books for Comic Relief based on famous Harry Potter novels and all the money from the sales went to the charity.

(Source: Solutions – Oxford University Press)

Điền ô 25

Xem đáp án

Câu 27:

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 25 to 29.

RED NOSE DAY

In 1985, there was a terrible famine in the African country of Sudan. Richard Curtis, a British comedy writer, and his friend, Alexander Mendis saw the news reports and wanted to make (25)______. They began a charity called Comic relief, with the help of charity worker Jane Tewson. In 1988, the charity had an idea of selling red plastic noses to raise money. It was the (26) ______ success and selling red noses became a regular part of the Britain’s charity to organize sponsored events. In 1997, BBC television supported Comic Relief with a whole afternoon and evenings of special TV programmes, calling it Red Nose Day. People around Britain organized fund-raising events around the same time and sent their money to Red Nose Day. In (27) ______, the event raised over £27 million for charity. Since it began, Comic Relief has raised more than £600 million, (28) ______ the generosity of the British public and the help of the celebrities (29)_____ take part. The charity produces books, CDs and other items help to raise money. In 2001, JK Rowling wrote two books for Comic Relief based on famous Harry Potter novels and all the money from the sales went to the charity.

(Source: Solutions – Oxford University Press)

Điền ô 27

Xem đáp án

Câu 28:

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 25 to 29.

RED NOSE DAY

In 1985, there was a terrible famine in the African country of Sudan. Richard Curtis, a British comedy writer, and his friend, Alexander Mendis saw the news reports and wanted to make (25)______. They began a charity called Comic relief, with the help of charity worker Jane Tewson. In 1988, the charity had an idea of selling red plastic noses to raise money. It was the (26) ______ success and selling red noses became a regular part of the Britain’s charity to organize sponsored events. In 1997, BBC television supported Comic Relief with a whole afternoon and evenings of special TV programmes, calling it Red Nose Day. People around Britain organized fund-raising events around the same time and sent their money to Red Nose Day. In (27) ______, the event raised over £27 million for charity. Since it began, Comic Relief has raised more than £600 million, (28) ______ the generosity of the British public and the help of the celebrities (29)_____ take part. The charity produces books, CDs and other items help to raise money. In 2001, JK Rowling wrote two books for Comic Relief based on famous Harry Potter novels and all the money from the sales went to the charity.

(Source: Solutions – Oxford University Press)

Điền ô 28

Xem đáp án

Câu 29:

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 25 to 29.

RED NOSE DAY

In 1985, there was a terrible famine in the African country of Sudan. Richard Curtis, a British comedy writer, and his friend, Alexander Mendis saw the news reports and wanted to make (25)______. They began a charity called Comic relief, with the help of charity worker Jane Tewson. In 1988, the charity had an idea of selling red plastic noses to raise money. It was the (26) ______ success and selling red noses became a regular part of the Britain’s charity to organize sponsored events. In 1997, BBC television supported Comic Relief with a whole afternoon and evenings of special TV programmes, calling it Red Nose Day. People around Britain organized fund-raising events around the same time and sent their money to Red Nose Day. In (27) ______, the event raised over £27 million for charity. Since it began, Comic Relief has raised more than £600 million, (28) ______ the generosity of the British public and the help of the celebrities (29)_____ take part. The charity produces books, CDs and other items help to raise money. In 2001, JK Rowling wrote two books for Comic Relief based on famous Harry Potter novels and all the money from the sales went to the charity.

(Source: Solutions – Oxford University Press)

Điền ô 29

Xem đáp án

Câu 30:

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 from 30 to 34.

Bitcoins are a form of virtual currency. In other words, they are a type of money that does not exist in the actual world. However, they can be used to purchase actual products and services from real companies.

The bitcoin system was created in 2009 by an enigmatic person named Satoshi Nakamoto. In fact, no one is sure if Satoshi Nakamoto is an actual person or a group of people. Bitcoins are designed to serve as an alternative to national currencies, such as dollars and euros. They can be used to pay for things online instead of cash or credit cards. When bitcoins are transferred from a buyer to a seller, the transaction is recorded in a public database.

Governments are concerned that bitcoins can easily be stolen by hackers. It has dawned on them that they might be used for illegal purposes. For example, stolen goods could be purchased without the government’s knowledge. Although more and more companies are beginning to accept bitcoins, the percentage of purchases made using bitcoins is minuscule compared to other online payment methods, such as credit cards. Instead, many bitcoin owners simply keep them as an investment since they believe their bitcoins will be more valuable in the future.

This may or may not be a wise approach. Currently, the value of bitcoins is fluctuating wildly, especially when compared to highly stable national currencies. Bitcoin investors are gambling on the hope that as this high-tech money becomes more widely accepted, its value will soar.

(Source: https://www.digitaltrends.com)

The word “soar” in paragraph 4 is closest in meaning to______. 

Xem đáp án

Câu 31:

 

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 from 30 to 34.

Bitcoins are a form of virtual currency. In other words, they are a type of money that does not exist in the actual world. However, they can be used to purchase actual products and services from real companies.

The bitcoin system was created in 2009 by an enigmatic person named Satoshi Nakamoto. In fact, no one is sure if Satoshi Nakamoto is an actual person or a group of people. Bitcoins are designed to serve as an alternative to national currencies, such as dollars and euros. They can be used to pay for things online instead of cash or credit cards. When bitcoins are transferred from a buyer to a seller, the transaction is recorded in a public database.

Governments are concerned that bitcoins can easily be stolen by hackers. It has dawned on them that they might be used for illegal purposes. For example, stolen goods could be purchased without the government’s knowledge. Although more and more companies are beginning to accept bitcoins, the percentage of purchases made using bitcoins is minuscule compared to other online payment methods, such as credit cards. Instead, many bitcoin owners simply keep them as an investment since they believe their bitcoins will be more valuable in the future.

This may or may not be a wise approach. Currently, the value of bitcoins is fluctuating wildly, especially when compared to highly stable national currencies. Bitcoin investors are gambling on the hope that as this high-tech money becomes more widely accepted, its value will soar.

(Source: https://www.digitaltrends.com)

 

 

Why are bitcoins of great concern to governments? 

Xem đáp án

Câu 32:

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 from 30 to 34.

Bitcoins are a form of virtual currency. In other words, they are a type of money that does not exist in the actual world. However, they can be used to purchase actual products and services from real companies.

The bitcoin system was created in 2009 by an enigmatic person named Satoshi Nakamoto. In fact, no one is sure if Satoshi Nakamoto is an actual person or a group of people. Bitcoins are designed to serve as an alternative to national currencies, such as dollars and euros. They can be used to pay for things online instead of cash or credit cards. When bitcoins are transferred from a buyer to a seller, the transaction is recorded in a public database.

Governments are concerned that bitcoins can easily be stolen by hackers. It has dawned on them that they might be used for illegal purposes. For example, stolen goods could be purchased without the government’s knowledge. Although more and more companies are beginning to accept bitcoins, the percentage of purchases made using bitcoins is minuscule compared to other online payment methods, such as credit cards. Instead, many bitcoin owners simply keep them as an investment since they believe their bitcoins will be more valuable in the future.

This may or may not be a wise approach. Currently, the value of bitcoins is fluctuating wildly, especially when compared to highly stable national currencies. Bitcoin investors are gambling on the hope that as this high-tech money becomes more widely accepted, its value will soar.

(Source: https://www.digitaltrends.com)

 

 

The word “they” in paragraph 3 refers to ______ . 

Xem đáp án

Câu 33:

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 from 30 to 34.

Bitcoins are a form of virtual currency. In other words, they are a type of money that does not exist in the actual world. However, they can be used to purchase actual products and services from real companies.

The bitcoin system was created in 2009 by an enigmatic person named Satoshi Nakamoto. In fact, no one is sure if Satoshi Nakamoto is an actual person or a group of people. Bitcoins are designed to serve as an alternative to national currencies, such as dollars and euros. They can be used to pay for things online instead of cash or credit cards. When bitcoins are transferred from a buyer to a seller, the transaction is recorded in a public database.

Governments are concerned that bitcoins can easily be stolen by hackers. It has dawned on them that they might be used for illegal purposes. For example, stolen goods could be purchased without the government’s knowledge. Although more and more companies are beginning to accept bitcoins, the percentage of purchases made using bitcoins is minuscule compared to other online payment methods, such as credit cards. Instead, many bitcoin owners simply keep them as an investment since they believe their bitcoins will be more valuable in the future.

This may or may not be a wise approach. Currently, the value of bitcoins is fluctuating wildly, especially when compared to highly stable national currencies. Bitcoin investors are gambling on the hope that as this high-tech money becomes more widely accepted, its value will soar.

(Source: https://www.digitaltrends.com)

 

 

What is the passage mainly about?

Xem đáp án

Câu 34:

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 from 30 to 34.

Bitcoins are a form of virtual currency. In other words, they are a type of money that does not exist in the actual world. However, they can be used to purchase actual products and services from real companies.

The bitcoin system was created in 2009 by an enigmatic person named Satoshi Nakamoto. In fact, no one is sure if Satoshi Nakamoto is an actual person or a group of people. Bitcoins are designed to serve as an alternative to national currencies, such as dollars and euros. They can be used to pay for things online instead of cash or credit cards. When bitcoins are transferred from a buyer to a seller, the transaction is recorded in a public database.

Governments are concerned that bitcoins can easily be stolen by hackers. It has dawned on them that they might be used for illegal purposes. For example, stolen goods could be purchased without the government’s knowledge. Although more and more companies are beginning to accept bitcoins, the percentage of purchases made using bitcoins is minuscule compared to other online payment methods, such as credit cards. Instead, many bitcoin owners simply keep them as an investment since they believe their bitcoins will be more valuable in the future.

This may or may not be a wise approach. Currently, the value of bitcoins is fluctuating wildly, especially when compared to highly stable national currencies. Bitcoin investors are gambling on the hope that as this high-tech money becomes more widely accepted, its value will soar.

(Source: https://www.digitaltrends.com)

 

 

 

 

Which of the following is defined in the passage? 

Xem đáp án

Câu 35:

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

Which of the following questions does the passage primarily answer?

Xem đáp án

Câu 36:

 

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

 

 

The word "rotting" in paragraph 1 is closest in meaning to _______. 

Xem đáp án

Câu 37:

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

 

 

All of the following terms are defined in the passage EXCEPT ______ .

Xem đáp án

Câu 38:

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

 

 

The word "unique" in paragraph 1 is closest in meaning to ______ 

Xem đáp án

Câu 39:

 

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

According to the passage, one thing eusocial insects can do is rapidly switch from ______ .

 

Xem đáp án

Câu 40:

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

It can be inferred from the passage that one main difference between termites and ants is that termites ______.

Xem đáp án

Câu 41:

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

The task of feeding larvae is mentioned in the passage to demonstrate ______. 

Xem đáp án

Câu 42:

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 from 35 to 42.

What unusual or unique biological train led to the remarkable diversification and unchallenged success of the ants for over 50 million years? The answer appears to be that they were the first group of predatory eusocial insects that both lived and foraged primarily in the soil and in rotting vegetation on the ground. Eusocial refers to a form of insect society characterized by specialization of tasks and cooperative care of the young; it is rare among insects. Richly organized colonies of the land made possible by eusociality enjoy several key advantages over solitary individuals.

Under most circumstances groups of workers are better able to forage for food and defend the nest, because they can switch from individual to group response and back again swiftly and according to need. When a food object or nest intruder is too large for one individual to handle, nestmates can be quickly assembled by alarm or recruitmentsignals. Equally important is the fact that the execution of multiple-step tasks is accomplished in a series-parallelsequence. That is, individual ants can specialize in particular steps, moving from one object (such as a larva to be fed) to another (a second larva to be fed). They do not need to carry each task to completion from start to finish - for example, to check the larva first, then collect the food, then feed the larva. Hence, if each link in the chain has many workers in attendance, a sense directed at any particular object is less likely to fail. Moreover, ants specializing in particular labor categories typically constitute a caste specialized by age or body form or both. There has been some documentation of the superiority in performance and net energetic yield of various castes for their modal tasks, although careful experimental studies are still relatively few.

What makes ants unusual in the company of eusocial insects is the fact that they are the only eusocial predators(predators are animals that capture and feed on other animals) occupying the soil and ground litter. The eusocial termites live in the same places as ants and also have wingless workers, but they feed almost exclusively on dead vegetation.

(Source: TOEFL Reading)

The word "they" in bold in the last paragraph refers to ______ . 

Xem đáp án

Câu 46:

Tim went on a two-day trip and he took more clothes than necessary

Xem đáp án

Câu 47:

“Stop smoking or you’ll be ill,” the doctor told me

Xem đáp án

Câu 48:

Your tea is not as strong as mine

Xem đáp án

Câu 49:

We didn’t want to spend a lot of money. We stayed in a cheap hotel

Xem đáp án

Câu 50:

Societies doubted about women’s intellectual ability. Therefore, they could not get access to education

Xem đáp án

5.0

1 Đánh giá

100%

0%

0%

0%

0%