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Read the following passage carefully, and then choose ONE best option (A,B,C or D) to complete each sentence.  ( 5 ms)

            Ever since humans have inhabited the earth, they have made use of various forms of communication  Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and  ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of the whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction.

Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warm, and instruct people.

While verbalization is most common form of language, other systems and techniques also express human thoughts and feelings.

1. Which of the following best summarizes this passage?

          A. When language is a barrier, people will find other forms of communication

          B. Everybody uses only one form of communication

          C. Nonlinguistic language is invaluable to foreigners

          D. Although other forms of communication exist, verbalization is the fastest

2. The word “these” in the first paragraph refers to …………………………

          A. tourist s                                                   B. the deaf and the mute   

        C. thoughts and feelings                              D. sign language motions

3. All of the following statements are true EXCEPT ………………………..

         A. There are many forms of communication in existence today

            B. Verbalization is the most common form of  communication

          C. The deaf and mute can use an oral form of  communication

          D. Ideas and thoughts can be transmitted by body language

4. Which form other than oral speech would be the most commonly used among blind people ?

        A. Picture signs               B. Braille                    C. Body language            D. Signal flags

5. Sign language is said to be very picturesque and exact and can be used internationally EXCEPT for …………………………………..

         A. spelling                      B. ideas                    C. whole words                   D. expressions

2
16 tháng 10 2021

1 A

2 D

3 C

4 B

5 A

16 tháng 10 2021

    Ever since humans have inhabited the earth, they have made use of various forms of communication  Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and  ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of the whole words are very picturesque and exact and can be used internationally, spelling, however, cannot. Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction.

Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warm, and instruct people.

While verbalization is most common form of language, other systems and techniques also express human thoughts and feelings.

1. Which of the following best summarizes this passage?

          A. When language is a barrier, people will find other forms of communication

          B. Everybody uses only one form of communication

          C. Nonlinguistic language is invaluable to foreigners

          D. Although other forms of communication exist, verbalization is the fastest

2. The word “these” in the first paragraph refers to …………………………

          A. tourist s                                                   B. the deaf and the mute   

        C. thoughts and feelings                              D. sign language motions

3. All of the following statements are true EXCEPT ………………………..

         A. There are many forms of communication in existence today

            B. Verbalization is the most common form of  communication

          C. The deaf and mute can use an oral form of  communication

          D. Ideas and thoughts can be transmitted by body language

4. Which form other than oral speech would be the most commonly used among blind people ?

        A. Picture signs               B. Braille                    C. Body language            D. Signal flags

5. Sign language is said to be very picturesque and exact and can be used internationally EXCEPT for …………………………………..

         A. spelling                      B. ideas                    C. whole words                   D. expressions

      Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used...
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      Ever since humans have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, and ideas. Tourists, the deaf, and the mute have had to resort to this form of expression. Many of these symbols of whole words are very picturesque and exact and can be used internationally, spelling, however, cannot.

      Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can be a way of flirting or indicating that the party is only joking. A nod signifies approval, while shaking the head indicates a negative reaction.

      Other forms of nonlinguistic language can be found in Braille (a system of raised dots read with the fingertips), signal flags, Morse code, and smoke signals. Road maps and picture signs also guide, warm, and instruct people. While verbalization is most common form of language, other systems and techniques also express human thoughts and feelings.

Question 29. Which form other than oral speech would be the most commonly used among blind people?

A.  Picture signs              B.  Braille                         C.  Signal flags                D.  Body language

Question 30. The word “these” I the first paragraph refers to___________.

A. thoughts and feelings                                                                                    

B. tourists

C. the deaf and the mute                                                                                    

D. sign language motions

Question 31. Sign language is said to be very picturesque and exact and can be used internationally EXCEPT for_______ .

A. spelling                        B. ideas                             C. whole words               D. expressions

Question 32. Which of the following best summarizes this passage?

A. Nonlinguistic language is invaluable to foreigners

B. Although other forms of communication exist, verbalization is the fastest

C. When language is a barrier, people will find other forms of communication.

D. Everybody uses only one form of communication

2
24 tháng 5 2022

29.C

30.D

31.A

32.C

24 tháng 5 2022

c

a

a

c

Read the following text and choose the best answer for the questions below.Ever since human have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, or ideas. Tourists in foreign countries, for example, the deaf, and the mute have had to resort to this form...
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Read the following text and choose the best answer for the questions below.

Ever since human have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, or ideas. Tourists in foreign countries, for example, the deaf, and the mute have had to resort to this form of expression. Many of these symbols on the whole are very interesting and exact, many can be used internationally; however, some can be confused for different requests or expressions.

Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can indicate that person is only joking. A nod signifies approval while shaking the head indicates a negative reaction.

Other forms of non - linguistic language can be found in Braille (a system of raised dots on paper read with finger tips), signal flags, Morse Code and smoke signals. Road maps and picture signs also guide, warn or instruct people. While verbalization is the most common form of language, there are other systems and techniques which express human thoughts and feelings.

Question 23: What is the main idea of this passage?

A. Alternative means of communication besides verbal communication.

B. The communication method specially used for the deaf and the mute.

C. The ineffectiveness of using other ways of communication.

D. The necessity of learning sign language to communicate with the deaf and the mute.

Question 24: The phrase “resort to” in the first paragraph refers to_____.

A. go to

B. make use of

C. find

D. realize

Question 25: The word “signifies” in the second paragraph is closest in meaning to_____.

A. transmits

B. knows

C. expresses

D. instructs

Question 26: Which of the following can be used by the mute to communicate_____?

A. Braille

B.verbalization

C. Morse Code

D. body language

Question 27: According to the passage, all of the following are true EXCEPT. A. there are many forms of communication in existence today

B. verbalization is the most common form of communication

C. the deaf and the mute can only use Braille

D. ideas and thoughts can be transmitted by body language

0
Read the following text and choose the best answer for the questions below. Ever since human have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, or ideas. Tourists in foreign countries, for example, the deaf, and the mute have had to resort to this form...
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Read the following text and choose the best answer for the questions below.

 

Ever since human have inhabited the earth, they have made use of various forms of communication. Generally, this expression of thoughts and feelings has been in the form of oral speech. When there is a language barrier, communication is accomplished through sign language in which motions stand for letters, words, or ideas. Tourists in foreign countries, for example, the deaf, and the mute have had to resort to this form of expression. Many of these symbols on the whole are very interesting and exact, many can be used internationally; however, some can be confused for different requests or expressions.

Body language transmits ideas or thoughts by certain actions, either intentionally or unintentionally. A wink can indicate that person is only joking. A nod signifies approval while shaking the head indicates a negative reaction.

Other forms of non - linguistic language can be found in Braille (a system of raised dots on paper read with finger tips), signal flags, Morse Code and smoke signals. Road maps and picture signs also guide, warn or instruct people. While verbalization is the most common form of language, there are other systems and techniques which express human thoughts and feelings.

Question 23: What is the main idea of this passage?

A. Alternative means of communication besides verbal communication.

B. The communication method specially used for the deaf and the mute.

C. The ineffectiveness of using other ways of communication.

D. The necessity of learning sign language to communicate with the deaf and the mute.

Question 24: The phrase “resort to” in the first paragraph refers to_____.

A. go to B. make use of C. find D. realize

Question 25: The word “signifies” in the second paragraph is closest in meaning to_____.

A. transmits B. knows C. expresses D. instructs

Question 26: Which of the following can be used by the mute to communicate_____?

A. Braille B.verbalization C. Morse Code D. body language

Question 27: According to the passage, all of the following are true EXCEPT.

A. there are many forms of communication in existence today

B. verbalization is the most common form of communication

C. the deaf and the mute can only use Braille

D. ideas and thoughts can be transmitted by body language

0
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.Most languages have several levels of vocabulary that may be used by the same speakers. In English, at least three have been identified and described.Standard usage includes those words and expressions understood, used, and accepted by a majority of the speakers of a language in any situation regardless of the levels of formality. As such, these words and...
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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.

Most languages have several levels of vocabulary that may be used by the same speakers. In English, at least three have been identified and described.

Standard usage includes those words and expressions understood, used, and accepted by a majority of the speakers of a language in any situation regardless of the levels of formality. As such, these words and expressions are well defined and listed in standard dictionaries. Colloquialisms, on the other hand, are familiar words and idioms that are understood by almost all speakers of a language and used in informal speech or writing, but not considered acceptable for more formal situations. Almost all idiomatic expressions are colloquial language. Slang, however, refers to words and expressions understood by a large number of speakers but not accepted as appropriate formal usage by the majority. Colloquial expressions and even slang may be found in standard dictionaries but will be so identified. Both Colloquial usage and slang are more common in speech than in writing. Colloquial speech often passes into standard speech. Some slang also passes into standard speech, but other slang expressions enjoy momentary popularity followed by obscurity. In some cases, the majority never accepts certain slang phrases but nevertheless retains them in their collective memories. Every generation seems to require its own set of words to describe familiar objects and events.

It has been pointed out by a number of linguists that three cultural conditions are necessary for the creation of a large body of slang expressions. First, the introduction and acceptance of new objects and situations in the society; second, a diverse population with a large number of subgroups; third, association among the subgroups and the majority population.

Finally, it is worth noting that the terms "standard", "colloquial" and "slang" exist only as abstract labels for scholars who study language. Only a tiny number of the speakers of any language will be aware that they are using colloquial or slang expressions. Most speakers of English will, during appropriate situations, select and use all three types of expressions.

Which of the following is the main topic of the passage?

A. Standard speech

B. Idiomatic phrases

C. Dictionary usage

D. Different types of vocabulary

1
17 tháng 8 2019

Đáp án: A

Giải thích: Dựa vào đoạn trích có thể thấy nội dung chính của đoạn trích là về lời nói/giao tiếp thường ngày.

V. Reading the following passage and choose the best answers LEARNING A LANGUAGE Speech is one of the most important (1)_________of communicating. It consists of far more than just making noises. To talk and also to (2)_________by other people, we have to speak a language, that is, we have to use combinations of (3)_________that everyone agrees stand for a particular object or idea. Communication would be impossible if everyone made up their own language. Learning a language properly is...
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V. Reading the following passage and choose the best answers

LEARNING A LANGUAGE

Speech is one of the most important (1)_________of communicating. It consists of far more than just making noises. To talk and also to (2)_________by other people, we have to speak a language, that is, we have to use combinations of (3)_________that everyone agrees stand for a particular object or idea. Communication would be impossible if everyone made up their own language.

Learning a language properly is very (4)_________. The basic (6)_________ of English is not very large, and only about 2000 words are needed to speak it quite …56…. But the more words you know, the more ideas you can (7)_________and the more precise you can be about their exact meaning.

Words are the (8)_________ thing we use in communicating what we want to say. The way we (9)_________ the words is also very important. Our tone of voice can express many emotions and (10)_________whether we are pleased of angry, for instance.

1. A. ways B. reasons C. rules D. tests

2. A. be examined B. be talked C. be understood D. be spoken

3. A. sounds B. languages C. systems D. talks

4. A. important B. expensive C. simple D. easy

5. A. word B. vocabulary C. grammar D. structure

6. A. good B. fluent C. well D. perfect

7. A. grow B. need C. pass D. express

8. A. most B. main C. certain D. full

9. A. send B. talk C. say D. pass

10. A. asks B. understands C. knows D. shows

2
27 tháng 10 2019

LEARNING A LANGUAGE

Speech is one of the most important (1)_________of communicating. It consists of far more than just making noises. To talk and also to (2)_________by other people, we have to speak a language, that is, we have to use combinations of (3)_________that everyone agrees stand for a particular object or idea. Communication would be impossible if everyone made up their own language.

Learning a language properly is very (4)_________. The basic (6)_________ of English is not very large, and only about 2000 words are needed to speak it quite …56…. But the more words you know, the more ideas you can (7)_________and the more precise you can be about their exact meaning.

Words are the (8)_________ thing we use in communicating what we want to say. The way we (9)_________ the words is also very important. Our tone of voice can express many emotions and (10)_________whether we are pleased of angry, for instance.

1. A. ways B. reasons C. rules D. tests

2. A. be examined B. be talked C. be understood D. be spoken

3. A. sounds B. languages C. systems D. talks

4. A. important B. expensive C. simple D. easy

5. A. word B. vocabulary C. grammar D. structure

6. A. good B. fluent C. well D. perfect

7. A. grow B. need C. pass D. express

8. A. most B. main C. certain D. full

9. A. send B. talk C. say D. pass

10. A. asks B. understands C. knows D. shows

27 tháng 10 2019

1. A. ways B. reasons C. rules D. tests

2. A. be examined B. be talked C. be understood D. be spoken

3. A. sounds B. languages C. systems D. talks

4. A. important B. expensive C. simple D. easy

5. A. word B. vocabulary C. grammar D. structure

6. A. good B. fluent C. well D. perfect

7. A. grow B. need C. pass D. express

8. A. most B. main C. certain D. full

9. A. send B. talk C. say D. pass

10. A. asks B. understands C. knows D. shows

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.Earth is richly supplied with different types of living organisms which co-exist in their environments, forming complex, interrelated communities. Living organisms depend on one another for nutrients, shelter, and other benefits. The extinction of one species can set off a chain reaction that affects many other species, particularly if the loss occurs near...
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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.

Earth is richly supplied with different types of living organisms which co-exist in their environments, forming complex, interrelated communities. Living organisms depend on one another for nutrients, shelter, and other benefits. The extinction of one species can set off a chain reaction that affects many other species, particularly if the loss occurs near the bottom of the food chain. For example, the extinction of a particular insect or plant might seem inconsequential. However, there may be fish or small animals that depend on that resource for foodstuffs. The loss can threaten the survival of these creatures and larger predators that prey upon them. Extinction can have a ripple effect that spreads throughout nature.

In addition to its biological consequences, extinction poses a moral dilemma for humans, the only species capable of saving the others. The presence of humans on the planet has affected all other life forms, particularly plants and animals. Human lifestyles have proven to be incompatible with the survival of some other species. Purposeful efforts have been made to eliminate animals that prey on people, livestock, crops, or pose any threat to human livelihoods. Some wild animals have been decimated by human desire for meat, hides, fur, or other body parts with commercial value. Likewise, demand for land, water, and other natural resources has left many wild plants and animals with little to no suitable habitat. Humans have also affected nature by introducing non-native species to local areas and producing pollutants having a negative impact on the environment. The combination of these human-related effects and natural obstacles such as disease or low birthrates has proven to be too much for some species to overcome. They have no chance of survival without human help.

As a result, societies have difficult choices to make about the amount of effort and money they are willing to spend to save imperiled species. Will people accept limits on their property rights, recreational activities, and means of livelihood to save a plant or an animal? Should saving such popular species as whales and dolphins take priority over saving obscure, annoying, or fearful species? Is it the responsibility of humans to save every kind of life form from disappearing, or is extinction an inevitable part of nature, in which the strong survive and the weak perish? These are some difficult questions that people face as they ponder the fate of other species living on this planet.

What does the passage mainly discuss?

A. Humans and endangered species

B. The importance of living organisms

C. Measures to protect endangered species

D. Causes of animal extinction

2
1 tháng 10 2018

Đáp án: A

Giải thích: Bài đọc nói về con người và những loài động vật đang bị nguy hiểm.

11 tháng 4 2023

A

Read the passage below then pick out ONE best option (A, B, C or D . to complete each of the following sentences:Britain is now a highly industrialized country and there are only 238,000 farms in the UK. More and more farmers leave the land because they can not earn enough money to survive. Only large farms are economic and because of this most British farm are big. They usually grow cereals in the east of England and raise sheep and cowsin the north of England and Scotland. The small family...
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Read the passage below then pick out ONE best option (A, B, C or D . to complete each of the following sentences:

Britain is now a highly industrialized country and there are only 238,000 farms in the UK. More and more farmers leave the land because they can not earn enough money to survive. Only large farms are economic and because of this most British farm are big. They usually grow cereals in the east of England and raise sheep and cowsin the north of England and Scotland. The small family farms often have to earn more money by offering bed and breakfast accommodation to tourists.

Farming methods in Britain have also changed. Fields used to be quite small, divided by hedges which were sometimes a thousand years old and full of wild flowers and birds. Many hedges were pulled up to allow farmers to use mordern machinery. Now most fields in England are large by European standards.

British farmers give up working on their farms because________ .

A. they are tired of the farm work

B. they can’t earn their own living by farming

C. they want to continue to live

D. they are forced to leave the land

1
28 tháng 8 2019

Đáp án: B

Thông tin: More and more farmers leave the land because they can not earn enough money to survive.

Dịch: Ngày càng có nhiều nông dân rời bỏ đất vì họ không thể kiếm đủ tiền để tồn tại.

II. Read the following passage anf fill in the blanks with suitable words. Language is a (1) .......of communication so each nation has its own (2).......However some nation have the same language. According (3)......the speakers' use of language, it is called the first, second or (4).......language. Among the languages used by most people in the (5)......is English. This doesn't mean that English is (6).....by greater number of speakers (7)........any other languages, for it is easily...
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II. Read the following passage anf fill in the blanks with suitable words.

Language is a (1) .......of communication so each nation has its own (2).......However some nation have the same language. According (3)......the speakers' use of language, it is called the first, second or (4).......language. Among the languages used by most people in the (5)......is English. This doesn't mean that English is (6).....by greater number of speakers (7)........any other languages, for it is easily outnumberes by Chinese in this respect. However it is (8)........most international of languae because it provides ready access to the world scholarship and world trade. That is the (9)........why millions (10)....men and women try to master it.






III. Read the passage below and write T next to the true sentence; write F next to the false one

A LANGUAGE EVERYONE KNOWS

There is one language we all speak, no matter what country we live in; the language of numbers.

The language of numbers is called MATHEMATICS. You are learning it in school now. The simplest kind is called ARITHMATIC. In high school and college you will learnnother kind of mathematics. To help all of us with mathematics, machine have been invented. They let us do problems faster and with fewer mistake. We know that the abacus or countingboard was first of these machines. It was invented many thousands of years ago, but it is still being used in China, Japan and other countries. Today, computers are used all over the world. These computers seem to think. Of courae, they reallydon't. They do only what people tell them to do. But they do it much better and faster than a person. Inside m acomputer may look very confusing to you. But the people who run it know just what to do. They can make a computer store up facts and give them to other people. They can make it slove hard problems and help us to live better. Like people all over theo world, these machines speak the same language : NUMBERS

1. ....... The simplest kind of mathemaitcs is Arithmetics

2. ....... In high school and college you will learn arithmetic.

3. .......Machines do problems faster than men.

4. .......The counting board is no longer being used in the world.

5. .......Computers were invented a thousand years ago.

1
29 tháng 9 2019

Language is a means of communication so each nation has its own language. However some nations have the same language. According to the speakers' use of language, it is called the first, second or foreign language. Among the languages used by most people in the world is English. This does not mean that English is spoken by greater number of speakers than any other languages, for it is easily outnemberred by Chinese in this respect. However, it is the most international of languages because it provides ready access to the world scholarship and world trade. That is the reason why millions of men and women try to master it.
Giup minh vs nha!! One day in 1963, a dolphin named Elvar and a famous astronomer, Carl Sagan, were playing a little game. The astronomer was visiting an institute which was looking into the way dolphins communicate with each other. He was standing at the edge of one of tanks where several of these highly intelligent, friendly creatures were kept. Elvar had just swum up alongside him and had turned on his back. He wanted Sagan to scratch his stomach again, as the astronomer had done twice...
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Giup minh vs nha!!

One day in 1963, a dolphin named Elvar and a famous astronomer, Carl Sagan, were playing a little game. The astronomer was visiting an institute which was looking into the way dolphins communicate with each other. He was standing at the edge of one of tanks where several of these highly intelligent, friendly creatures were kept. Elvar had just swum up alongside him and had turned on his back. He wanted Sagan to scratch his stomach again, as the astronomer had done twice before. But this time Elvar was too deep in the water for Sagan to reach him. Elvar looked up at Sagan, waiting. Then, after a minute or so, the dolphin leapt up through the water into the air and made a sound just like the words "More!"

The astonished astronomer went to the director of the institute and told him about the incident.

"Oh, yes. That´s one of the words he knows," the director said, showing no surprise at all.

Dolphins have bigger brains in proportion to their body size than humans have, and it has been known for a long time that they can make a number of sounds. What is more, these sounds seem to have different functions, such as warning each other of danger. Sound travels much faster and further in water than it does in air. That is why the parts of the brain that deal with sound are much better developed in dolphins than in humans. But can it be said that dolphins have a "language", in the real sense of the word? Scientist don´t agree on this.

1/ The dolphin leapt into the air because

A. Sagan was too near the water

B. it was part of the game they were playing.

C. he wanted Sagan to scratch him again

D. Sagan wanted to communicate with him

2/ "Dolphins" brains are particularly well developed to

A. help them to travle fast in water

B. arrange sounds in different structures

C. respond to different kinds of sound

D. communicate with humans through sound

Read the text on the tight about the invention of semaphore. Five sentences have been removed. Choose from sentences A-F the one which fits each gap (l-4).There is one extra sentence which you do not need. There is an example at the beginning (0).

A Using ropes, these could be moved to form 49 different shapes that could be recognized easily.

B The main problem was that it could not be used during the night or on foggy days.

C These messages could be sent very quickly.

D The new republic faced enemies on all sides in the form of the forces of Britain, Austria, Holland, Prussia and Spain.

E In August 1794, it carried its first message, the news of Napoleon's victory at Le Quenoy.

F A system was built between London and the south coast, and other countries followed.

War has been called 'the mother of invention', and this was certainly true in the French Revolutionary wars in 1792. 1 | D | What the Revolutionary Government urgently needed was a reliable system of communication.

Claude Chappe, who was a priest and an engineer, had developed a telegraph system, but had not been able to test it fully. However, his brother Ignace was a member of the government, and arranged for Claude's system to be tested. It turned out to be a great success and started a new form of high-speed communication.

The two brothers had a series of towers built 5 to 10 km apart. At the top of each tower was a tall wooden mast, and they attached one horizontal and two vertical wooden beams to this mast. Claude called this system 'semaphore', which comes from the Greek meaning 'bearing a sign'. 2 ( )

Operators in each tower watched neighbouring towers through a telescope and then passed the message on to the next one in the line. The first line stretched from Paris to Lille, a distance of 2.40 km. 3 ( ). At an average speed of three signals a minute, it was carried in 20 minutes, more than 90 times faster than messengers on horseback.

Once the value of Chappe's system was understood, it soon became the standard method of communication in Europe. 4 ( ). By the time the electric telegraph was developed, France had more than 550 semaphore towers stretching 4,800km.

Unfortunately, Chappe's system had some disadvantages. 5 ( ) The towers were also expensive to maintain and the cost of staff was high. In the end, Chappe was depressed by these criticisms of his inventions and by claims from other engineers that they had invented semaphore, and he committed suicide in 1805.

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14 tháng 7 2018

One day in 1963, a dolphin named Elvar and a famous astronomer, Carl Sagan, were playing a little game. The astronomer was visiting an institute which was looking into the way dolphins communicate with each other. He was standing at the edge of one of tanks where several of these highly intelligent, friendly creatures were kept. Elvar had just swum up alongside him and had turned on his back. He wanted Sagan to scratch his stomach again, as the astronomer had done twice before. But this time Elvar was too deep in the water for Sagan to reach him. Elvar looked up at Sagan, waiting. Then, after a minute or so, the dolphin leapt up through the water into the air and made a sound just like the words "More!"

The astonished astronomer went to the director of the institute and told him about the incident.

"Oh, yes. That´s one of the words he knows," the director said, showing no surprise at all.

Dolphins have bigger brains in proportion to their body size than humans have, and it has been known for a long time that they can make a number of sounds. What is more, these sounds seem to have different functions, such as warning each other of danger. Sound travels much faster and further in water than it does in air. That is why the parts of the brain that deal with sound are much better developed in dolphins than in humans. But can it be said that dolphins have a "language", in the real sense of the word? Scientist don´t agree on this.

1/ The dolphin leapt into the air because

A. Sagan was too near the water

B. it was part of the game they were playing.

C. he wanted Sagan to scratch him again

D. Sagan wanted to communicate with him

2/ "Dolphins" brains are particularly well developed to

A. help them to travle fast in water

B. arrange sounds in different structures

C. respond to different kinds of sound

D. communicate with humans through sound