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30 tháng 3 2019

VI. Choose the word or phrase (a, b, c, or d) that best firs the blank space in the following passage.
The wind controls our planet's weather and climate, but how much do we understand about this complex (31)_________, which can kill and spread fear? On the night of 15 October 1987, the south of England was (32)_________ by the strongest winds it had known for over two hundred years. (33) _______of over 130 km/h blew through the region. Nineteen people were killed, $1,5 billicn-worth of (34)___________ was caused and 19-million trees were (35)_______ in just a few hours
Although people thought of this as a hurricane, the winds of 1987 were only (36)_______ storm force. They are far better known than the much more serious storms of 25 January 1990, (37)_________most of Britain was hit by daytime winds of up to 173 km/h. On this (38)_________,47 people were killed, even though, (39)_________ in 1987, the weather forecasters issued accurate (40) ______
31. a. air b. climate c. weather d. force
32. a. occured b. caused c. struck d. destroyed
33. a. Gusts b. Blows c. Hits d. Clouds
34. a. hurt b. damage c. injury d. destruction
35. a. let down b. cut down c. blown down d. fallen down
36. a. severe b. serious c. powerful d. dangerous .

37. a. that b. where c. which dwhen
38. a. occasion b. incident c. accident d. event
39. a. like b. as c. likely d. unlike
40. a. warnings c. news d. signs b. treats

VI. Choose the word or phrase (a, b, c, or d) that best firs the blank space in the following passage. The wind controls our planet's weather and climate, but how much do we understand about this complex (31)_________, which can kill and spread fear? On the night of 15 October 1987, the south of England was (32)_________ by the strongest winds it had known for over two hundred years. (33) _______of over 130 km/h blew through the region. Nineteen people were killed, $1,5 billicn-worth of...
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VI. Choose the word or phrase (a, b, c, or d) that best firs the blank space in the following passage.
The wind controls our planet's weather and climate, but how much do we understand about this complex (31)_________, which can kill and spread fear? On the night of 15 October 1987, the south of England was (32)_________ by the strongest winds it had known for over two hundred years. (33) _______of over 130 km/h blew through the region. Nineteen people were killed, $1,5 billicn-worth of (34)___________ was caused and 19-million trees were (35)_______ in just a few hours
Although people thought of this as a hurricane, the winds of 1987 were only (36)_______ storm force. They are far better known than the much more serious storms of 25 January 1990, (37)_________most of Britain was hit by daytime winds of up to 173 km/h. On this (38)_________,47 people were killed, even though, (39)_________ in 1987, the weather forecasters issued accurate (40) ______
31. a. air b. climate c. weather d. force
32. a. occured b. caused c. struck d. destroyed
33. a. Gusts b. Blows c. Hits d. Clouds
34. a. hurt b. damage c. injury d. destruction
35. a. let down b. cut down c. blown down d. fallen down
36. a. severe b. serious c. powerful d. dangerous
37. a. that b. where c. which d. when
38. a. occasion b. incident c. accident d. event
39. a. like b. as c. likely d. unlike
40. a. warnings c. news d. signs b. treats

1
2 tháng 4 2019

The wind controls our planet's weather and climate, but how much do we understand about this complex (31)_________, which can kill and spread fear? On the night of 15 October 1987, the south of England was (32)_________ by the strongest winds it had known for over two hundred years. (33) _______of over 130 km/h blew through the region. Nineteen people were killed, $1,5 billicn-worth of (34)___________ was caused and 19-million trees were (35)_______ in just a few hours
Although people thought of this as a hurricane, the winds of 1987 were only (36)_______ storm force. They are far better known than the much more serious storms of 25 January 1990, (37)_________most of Britain was hit by daytime winds of up to 173 km/h. On this (38)_________,47 people were killed, even though, (39)_________ in 1987, the weather forecasters issued accurate (40) ______
31. a. air b. climate c. weather d. force.
32. a. occured b. caused c. struck. d. destroyed
33. a. Gusts. b. Blows c. Hits d. Clouds
34. a. hurt b. damage. c. injury d. destruction
35. a. let down b. cut down c. blown down. d. fallen down
36. a. severe. b. serious c. powerful d. dangerous
37. a. that b. where c. which d. when.
38. a. occasion. b. incident c. accident d. event
39. a. like b. as c. likely d. unlike.
40. a. warnings. c. news d. signs b. treats

The wind controls our planet's weather and climate, but how much do we understand about thiscomplex (1)___, which can kill and spread fear? On the night of 15 October 1987, the south ofEngland was (2)___ by the strongest winds it had known for over two hundred years. (3)___ of over130 km/h blew through the region. Nineteen people were killed, $1,5 billion-worth of (4)__ wascaused and 19 million trees were (5)___ in just a few hours.Although people thought of this as a hurricane, the winds of...
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The wind controls our planet's weather and climate, but how much do we understand about this
complex (1)___, which can kill and spread fear? On the night of 15 October 1987, the south of
England was (2)___ by the strongest winds it had known for over two hundred years. (3)___ of over
130 km/h blew through the region. Nineteen people were killed, $1,5 billion-worth of (4)__ was
caused and 19 million trees were (5)___ in just a few hours.
Although people thought of this as a hurricane, the winds of 1987 were only (6)___ storm force.
They are far better known than the much more serious storms of 25 January 1990, (7)___ most of
Britain was hit by daytime winds of up to 173 km/h. On this (8)___, 47 people were killed, even
though, (9)___ in 1987, the weather forecasters issued accurate (10)___.
1. a. air b. climate c. weather d. force
2. a. occured b. caused c. struck d. destroyed
3. a. Gusts b. Blows c. Hits d. Clouds
4. a. hurt b. damage c. injury d. destruction
5. a. let down b. cut down c. blown down d. fallen down
6. a. severe b. serious c. powerful d. dangerous
7. a. that b. where c. which d. when
8. a. occasion b. incident c. accident d. event
9. a. like b. as c. likely d. unlike
10. a. warnings b. treats c. news d. signs
Vietnamese's New Year is (1)___ according to the Lunar calendar. It is (2)___ known as the Lunar
New Year or Tet. It occurs in (3)___ January or early February. The exact date changes (4)___ year to
year. Vietnamese people usually make (5)___ for Tet holiday several weeks beforehand. They clean
and decorate their homes, cook special food such as (6)___ rice cakes, and make (7)___ on the family
altars. On the New Year's Eve, the whole family (8)___ together for the reunion dinner in which many
different kinds of dishes are served. On Tet, people usually (9)___ their new clothes, give one another
the Tet season's greetings, and pay (10)___ visits.
1. a. made b. organized c. celebrated d. performed
2. a. officially b. hardly c. exactly d. perfectly

3. a. later b. late c. lately d. latest
4. a. in b. for c. through d. from
5. a. decoration b. expression c. preparation d. celebration
6. a. sticky b. cream c. milky d. sponge 
7. a. offers b. offerings c. presents d. fruit
8. a. meets b. takes c. gets d. puts
9. a. take on b. get off c. go with d. put on
10. a. mutual  b. regularly c. annual  d. formal

1
24 tháng 2 2022

Ex1:

1. a. air b. climate c. weather d. force
2. a. occured b. caused c. struck d. destroyed
3. a. Gusts b. Blows c. Hits d. Clouds
4. a. hurt b. damage c. injury d. destruction
5. a. let down b. cut down c. blown down d. fallen down
6. a. severe b. serious c. powerful d. dangerous
7. a. that b. where c. which d. when
8. a. occasion b. incident c. accident d. event
9. a. like b. as c. likely d. unlike
10. a. warnings b. treats c. news d. signs

Ex2:

1. a. made b. organized c. celebrated d. performed
2. a. officially b. hardly c. exactly d. perfectly
3. a. later b. late c. lately d. latest
4. a. in b. for c. through d. from
5. a. decoration b. expression c. preparation d. celebration
6. a. sticky b. cream c. milky d. sponge 
7. a. offers b. offerings c. presents d. fruit
8. a. meets b. takes c. gets d. puts
9. a. take on b. get off c. go with d. put on
10. a. mutual  b. regularly c. annual  d. formal

The large movement of earth under the water causes a very large and powerful tsunami. The tsunami was called the Asian Tsunami in most of the world. It was called the Boxing Day Tsunami in England, Australia, South Africa and Canada because it happened on the holiday they call Boxing Day. The tsunami caused a lot of damage to countries such as Philippines, Thailand, Indonesia and Sri Lanka. Waves as high as 30m killed many people and damaged or destroyed a lot of buildings and other...
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The large movement of earth under the water causes a very large and powerful tsunami. The tsunami was called the Asian Tsunami in most of the world. It was called the Boxing Day Tsunami in England, Australia, South Africa and Canada because it happened on the holiday they call Boxing Day. The tsunami caused a lot of damage to countries such as Philippines, Thailand, Indonesia and Sri Lanka.

Waves as high as 30m killed many people and damaged or destroyed a lot of buildings and other properties. Over 225,000 people died or were not found after the Tsunami, The wave traveled as far away as South Africa (8000km) where as many as 8 people died because of high water caused by the wave. Because of how much damage was caused and the number of people the earthquake affected, over 7 billion was donated to help the survivors and rebuild the areas damaged.

1. Why was the tsunami called the Boxing Day Tsunami in England?

A. Because it happened when people were boxing.

B. Because it happened when people were collecting boxes

C. Because it happened on Boxing Day

D. Because it destroyed a lot of boxes

2. How high were the waves?

A. Thirteen meters B. Eighteen meters

C. Thirty meters D. Two hundred and twenty-five meters

3. What were some people in South Africa killed by?

A. Earthquake B. High water C. High wind D. Property

4. What does the word "survivors' in line 11 mean?

A. houses that aren't destroyed

B. offices that are being built.

C. people that are dead

D. people that are left alive

5. Which of the following is NOT true?

A.Only in Asia the tsunami was called Asian Tsunami.

B. The tsunami caused a lot of damage to Indonesia.

C. Many people died because of the high waves

D. A lot of money was raised to help people

1
15 tháng 2 2020

The large movement of earth under the water causes a very large and powerful tsunami. The tsunami was called the Asian Tsunami in most of the world. It was called the Boxing Day Tsunami in England, Australia, South Africa and Canada because it happened on the holiday they call Boxing Day. The tsunami caused a lot of damage to countries such as Philippines, Thailand, Indonesia and Sri Lanka.

Waves as high as 30m killed many people and damaged or destroyed a lot of buildings and other properties. Over 225,000 people died or were not found after the Tsunami, The wave traveled as far away as South Africa (8000km) where as many as 8 people died because of high water caused by the wave. Because of how much damage was caused and the number of people the earthquake affected, over 7 billion was donated to help the survivors and rebuild the areas damaged.

1. Why was the tsunami called the Boxing Day Tsunami in England?

A. Because it happened when people were boxing.

B. Because it happened when people were collecting boxes

C. Because it happened on Boxing Day

D. Because it destroyed a lot of boxes

2. How high were the waves?

A. Thirteen meters B. Eighteen meters

C. Thirty meters D. Two hundred and twenty-five meters

3. What were some people in South Africa killed by?

A. Earthquake B. High water C. High wind D. Property

4. What does the word "survivors' in line 11 mean?

A. houses that aren't destroyed

B. offices that are being built.

C. people that are dead

D. people that are left alive

5. Which of the following is NOT true?

A.Only in Asia the tsunami was called Asian Tsunami.

B. The tsunami caused a lot of damage to Indonesia.

C. Many people died because of the high waves

D. A lot of money was raised to help people

Read the passage carefully , then decide whether the following statements are true ( T ) or false ( F ) . A 7.0 magnitude earthqualce struclc Haiti just before 5 pm . on 12 January 2010 , about 10 miles southwest of Port - au - Prince , the country ' s capital . The quako was the worst in the region in more than 200 years . An estimated million people were affected by the quake . The Faitian Government reported that an estimated 230 , 000 people had died , 300 , 000 had been injured and 1 ,...
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Read the passage carefully , then decide whether the following statements are true ( T ) or false ( F ) .

A 7.0 magnitude earthqualce struclc Haiti just before 5 pm . on 12 January 2010 , about 10 miles southwest of Port - au - Prince , the country ' s capital . The quako was the worst in the region in more than 200 years . An estimated million people were affected by the quake . The Faitian Government reported that an estimated 230 , 000 people had died , 300 , 000 had been injured and 1 , 000 , 000 made homeless .

Most of Port - au - Prince ' s major landmarks were significantly damaged or stroyed in the earthqualce , including the Presidential Palace , the National Assem bly building , the Port - au - Prince Cathedral , and the main jail . All hospitals were destroyed or so badly damaged that they have been abandoned . The day after the quake . Haiti ' s president , René Préval , called the destruction " unimaginable . ”

32 . The earthquake in Haiti measured 7 . 0 on the Richter scale .

33 . The earthqualce hit Haiti at 5 p.m. on 12 January 2010 .

34 The earthqualce caused severe damage ' to Port - au - Prince .

35 . Hundreds of thousands of people were killed in the earthqualke 36 .

36. The 2010 earthquake was the region ' s worst ever earthquake

1
25 tháng 11 2018

32. T

33. F

34. T

35. T

36. F

B. Read the text carefully, then choose the correct answers. More than two hundred years ago, the term 'environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the envi Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars emit dangerous gases that...
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B. Read the text carefully, then choose the correct answers. More than two hundred years ago, the term 'environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the envi Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars emit dangerous gases that cause poisonous air and cancer, but no one wants to travel on foot or by bicycle. Manufactures know that wastes from factories make water and soil polluted, but they do not want to spend a lot of their money on treating the wastes safely. Scattering garbage is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about pollution? 1. More than two hundred years ago a. the environment was polluted as much as it is today b. people knew nothing about environmental pollution c. air was polluted badly d. people were faced with pollution d. people were faced with pollution 2. Nowadays, many people are concerned about the b. the polluted water a.the poisonous air c. the wastes from the factories d. the environmental pollution 3. According to the passage, people know that mortorbikes and cars emit dangerous gases a. so they do not travel by motorbikes and cars b. so they prefer traveling by bicycles c. but they still prefer traveling by mbtorbikes. and cars d. and they enjoy traveling on foot 4. Factory owners a. know nothing about pollution b. pollute water and soil c spend a lot of money on treating wastes d. don't treat industrial waste safely 5. Which of the followings is not true? a. in former days, people led a healthy life. b. People have no awareness of the dangerous of pollution c. Water is now heavily contaminated by industrial waste d. It's harmful for our health if rubbish is spreaded over our areas
2
29 tháng 9 2018

B. Read the text carefully, then choose the correct answers.

More than two hundred years ago, the term 'environmental pollution was quite strange to people. They lived healthily, drank pure water, and breathed fresh air. Nowadays, the situation is quite different. People all over the world are worried about things that are happening to the envi Actually it is man that is destroying the surroundings with many kinds of wastes. Everybody knows that motorbikes and cars emit dangerous gases that cause poisonous air and cancer, but no one wants to travel on foot or by bicycle. Manufactures know that wastes from factories make water and soil polluted, but they do not want to spend a lot of their money on treating the wastes safely. Scattering garbage is bad for our health, but no one wants to spend time burying it. Is it worth talking a lot about pollution?

1. More than two hundred years ago

a. the environment was polluted as much as it is today

b. people knew nothing about environmental pollution

c. air was polluted badly

d. people were faced with pollution

2. Nowadays, many people are concerned about the

b. the polluted water

a.the poisonous air

c. the wastes from the factories

d. the environmental pollution

3. According to the passage, people know that mortorbikes and cars emit dangerous gases

a. so they do not travel by motorbikes and cars

b. so they prefer traveling by bicycles

c. but they still prefer traveling by mbtorbikes. and cars

d. and they enjoy traveling on foot

4. Factory owners

a. know nothing about pollution

b. pollute water and soil

c spend a lot of money on treating wastes

d. don't treat industrial waste safely

5. Which of the followings is not true?

a. in former days, people led a healthy life.

b. People have no awareness of the dangerous of pollution

c. Water is now heavily contaminated by industrial waste

d. It's harmful for our health if rubbish is spreaded over our areas

1 tháng 3 2023

1b 

2a

3d

4c

5d

The city of Melbourne, Australia has always had a (1)_______________ forunusual weather. Melbourne people enjoy (2)_________ this joke to visitors:if you don’t like the weather in Melbourne, don’t worry, just wait fiveminutes, because it’s sure to change. At the beginning of 1992,Melbourne had its (3)________ January for over 100 years. It rained fornine days on (4)_______ . As well as raining all day, the weather was alsocold. At night, people in some Melbourne suburbs were (5)_________...
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The city of Melbourne, Australia has always had a (1)_______________ for

unusual weather. Melbourne people enjoy (2)_________ this joke to visitors:

if you don’t like the weather in Melbourne, don’t worry, just wait five

minutes, because it’s sure to change. At the beginning of 1992,

Melbourne had its (3)________ January for over 100 years. It rained for

nine days on (4)_______ . As well as raining all day, the weather was also

cold. At night, people in some Melbourne suburbs were (5)_________ on

their heating as (6)_________ it was winter. It was (7)__________ cold many

people could (8)_______ believe that it was summer at all.

The best weather in Melbourne, however, is not usually in

the summer: it is in the autumn. The autumn usually has more pleasant days

the summer. The weather in autumn is usually (10)___________ of

warm days and cool, comfortable (11)_________ .

The (12)_____ of the city at this time of year is beautiful, too. Melbourne

has many lovely gardens and parklands with beautiful trees. In the autumn,

the trees change their (13)_________ to red, gold and brown. As they are

(14)_____ in the air by the wind of a late autumn day, the leaves add life

to the city. So even if the summer is cold and wet, people in Melbourne

can still look forward to the (15) ______of a warm sunny autumn.

1
11 tháng 10 2019

1. Reputation

2 telling

3. wettest

4. End

5.turning

6. end

7. So

8. never

9. than

10. composed

11. Nights

12. scenery

13. Leaves

14. blown

15. possibility

Use the words provided to fill the blanks Earth who destroy because in fire when quickly at Almost a hundred thousand people were killed and half a million homes (1)......as a result of an earthquake in Tokyo in 1923. The earthquake began a minute before noon (2)......many people of Tokyo were cooking their midday meals. Thousands of stoves were overturned as soon as the (3).......began to shake. As a result, small fires broke out everywhere and (4).....spread. The fire engines...
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Use the words provided to fill the blanks

Earth who destroy because in fire when quickly at

Almost a hundred thousand people were killed and half a million homes (1)......as a result of an earthquake in Tokyo in 1923. The earthquake began a minute before noon (2)......many people of Tokyo were cooking their midday meals. Thousands of stoves were overturned as soon as the (3).......began to shake. As a result, small fires broke out everywhere and (4).....spread. The fire engines were prevented for going to help as many of the roads had cracked open. It was impossible to use fire fighting equipment (5)......most of the water pipes had burst. Consequently, over ninety percent of the damage was caused by the (6)......rather than by the collapse of the buildings. Most of those (7).......died were not killed in the earthquake itself but in the fires, which followed. If the earthquake had occurred (8)......night while people were sleeping, far fewer would have died

2
5 tháng 3 2019

Almost a hundred thousand people were killed and half a million homes (1) destroyed as a result of an earthquake in Tokyo in 1923. The earthquake began a minute before noon (2) when many people of Tokyo were cooking their midday meals. Thousands of stoves were overturned as soon as the (3) earth began to shake. As a result, small fires broke out everywhere and (4) quickly spread. The fire engines were prevented for going to help as many of the roads had cracked open. It was impossible to use fire fighting equipment (5) because most of the water pipes had burst. Consequently, over ninety percent of the damage was caused by the (6) fire rather than by the collapse of the buildings. Most of those (7) who died were not killed in the earthquake itself but in the fires, which followed. If the earthquake had occurred (8) at night while people were sleeping, far fewer would have died

19 tháng 12 2019

Almost a hundred of thousand people were killed and half a million homes destroyed as a result of an earthquake in Tokyo in 1923. The earthquake began a minute before noon when the inhabitants of Tokyo were cooking their midday meals. Thousands of stoves were overturned as soon as the earth began to shake. As a result, small fire broke out everywhere and quickly spread. The fire engines were prevented from going to help because many of the roads had cracked open. It was impossible to use firefighting equipment as most of the water pipes had burst. Consequently, over ninety percent of damage was caused by fire rather than by the collapse of the buildings. Most of those who died were not killed in the earthquake itself but in the fires, which followed. If the earthquake had occurred at night while people were sleeping, far fewer would have died.

VI. Read the passage carefully, then decide whether the following statement are true (T) or false (F) Halloween has its origin in the ancient Celtic celebration called Samhain (pronounced sow-in). The Celtic people lived in Ireland, the United Kingdom, and northern France over 2,000 years ago. The Celtic New Year began on November 1. Samhain was a festival that celebrated the end of summer and the harvest season on the day before the new year. During this festival, the Celts would wear...
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VI. Read the passage carefully, then decide whether the following statement are true (T) or false (F)
Halloween has its origin in the ancient Celtic celebration called Samhain (pronounced sow-in). The Celtic people lived in Ireland, the United Kingdom, and northern France over 2,000 years ago. The Celtic New Year began on November 1. Samhain was a festival that celebrated the end of summer and the harvest season on the day before the new year. During this festival, the Celts would wear costumes and try to tell each other their future.
By the time Christianity had spread to the region in the ninth century A.D., November 1 had been designated All Saints Day or All-hallows. The day before, October 31", was referred to as All-hallows Eve. It is now simply called Halloween.
32. The origin of Halloween can be traced to Celts.
33. The celebration of Samhain took place on November 1st.
34. During Samhain, people wore costumes and told each other's fortune.
35. By the 900s, Christianity had spread into Celtic lands.
36. All-hallows Eve is another name for Halloween.

1

Halloween has its origin in the ancient Celtic celebration called Samhain (pronounced sow-in). The Celtic people lived in Ireland, the United Kingdom, and northern France over 2,000 years ago. The Celtic New Year began on November 1. Samhain was a festival that celebrated the end of summer and the harvest season on the day before the new year. During this festival, the Celts would wear costumes and try to tell each other their future.
By the time Christianity had spread to the region in the ninth century A.D., November 1 had been designated All Saints Day or All-hallows. The day before, October 31", was referred to as All-hallows Eve. It is now simply called Halloween.
32. The origin of Halloween can be traced to Celts. T
33. The celebration of Samhain took place on November 1st. T
34. During Samhain, people wore costumes and told each other's fortune. T
35. By the 900s, Christianity had spread into Celtic lands. T
36. All-hallows Eve is another name for Halloween.T

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