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2. Read the text. Then answer the questions.

Beautiful Landscapes – More Than Just a Painting

When most people look at a painting of a sunset, they see a beautiful work of art. When Professor Christos Zerefos looks at a painting of a sunset, he sees valuable scientific evidence. He believes that these paintings contain important information about the effect of volcanoes on the climate.

Scientists know that after a volcanic eruption, sunsets are very red. This is caused from the dust and ash that is sent into the sky. Volcanoes also lower the temperature of the Earth.

Professor Zerefos and his team decided to study paintings of sunsets before and after volcanic eruptions. Red sunsets are a sign of polluted skies, so the scientists believed that landscapes that were painted around the times of major volcanic eruptions would have bright red sunsets. They wanted to use the paintings to measure how the volcanoes had affected the climate in the past.

The team studied 500 watercolours and oils of sunsets that were painted between 1500 and 1900. The scientists used a computer to calculate the amount of red in each picture. They found that the sunsets that were painted after a volcanic eruption were bright red.

Many scientists are not convinced by this theory. According to them, it is impossible to make scientific conclusions based on art that was painted so long ago, because it is possible that the colours have changed since they were originally painted. What is more, artists often try to make something look very impressive when they paint. As a result, they may not always paint an accurate picture of nature.

Professor Zerefos disagrees. He is certain that artists accurately copy the actual colours of the sunsets they see. He is now studying paintings that were painted in the 20th century.

So the next time you look at a painting of a beautiful sunset, examine the colours more carefully.

1. Why did Professor Zerefos study paintings of sunsets?..................................................

2. Why are sunsets very red after a volcanic eruption?...................................................................

4. Explain the meaning of the title...............................................................................................

3. Complete first part of the sentences using the appropriate passive form of the verb in brackets. Then complete the second part of the sentences according to the information found in the text.

1. The Earth’s temperature ………………… (lower) by ................................................................... .

2. In the past, bright red sunsets ………………… (paint) ............................................................... .

3.More than 500 paintings of sunsets .............................................(examine).................................... .

3. In the study, a computer ………………… (use) to ..................................................................... .

4. According to some scientists, nature ………………… (not copy) ................................................ .

NHANH NHANH NHA, THỨ 7 TUẦN SAU MK NỘP BÀI RỒI.

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12 tháng 1 2020

2.

1. Because he believes that these paintings contain important information about the effect of volcanoes on the climate.

2. Because a lot of dust and ash is sent into the sky.

3. There is more than just beautyin the painting of a landscape.

3.

1. is lowered / volcanoes

2. were painted / after major volcanic eruptions

3. have been examined / by a team of experts

4. was used ; analyse the results / calculate the amount of red in each picture.

5. isn't copied / accurately by artists.

Tham Khảo : https://text.123doc.org/document/3796996-islcollective-worksheets-preintermediate-a2-intermediate-b1-adults-high-school-reading-speaking-passive-voice-environmen-11683160054cc10c5f278f4-76167272.htm

12 tháng 1 2020

Mk ko copy link tham khỏa đc, bn gửi cho mk cái link vs

VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less...
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VOCABULARY AND GRAMMAR I. Match a word in column A with its description in column B, writing the answer in each blank. Answer A B ______ 1. A thunderstorm A. It is created when the surface layer of the ground collapses. It varies in size and are found all over the world. It is an area of ground that has no natural external surface drainage. When it rains, all of the water stays inside it and typically drains into the subsurface. It can vary from a few feet to hundreds of acres and from less than 1 to more than 100 feet deep. ______ 2. A tornado B. The Earth has a crust under the oceans and the land that we live on. This crust made of massive areas of flat rock called tectonic plates, which float on the Earth’s mantle, the inside layer of the Earth. When the plates move slowly together, this movement forces energy through the crusts to the Earth’s surface. The energy causes the Earth to tremble and shake. ______ 3. A hurricane C. It is a very bright flash of electricity that happens in a thunderstorm. It is actually a spark that crosses the gap between two clouds or between a cloud and the Earth. It carries an enormous charge of electricity. Trees are burned, metal can be melted and people can be killed. ______ 4. An earthquake D. It is caused by earthquakes at sea. It forms when energy from an earthquake displace hundreds of cubic kilometers of water from the seabed. Large waves begin moving through the ocean from their epicenters. When it reaches shallow water near coastal areas, it increases in height. The sign comes before it strikes when the waterline suddenly retreats, exposing hundreds of meters of beach and seabed. ______ 5. A volcano E. It is a very violent windstorm. The air is concentrated and whirls up rapidly. It is grey in colour and looks like an elephant’s trunk swaying down from the clouds to touch the ground with its tip. ______ 6. A tsunami F. It is a hill or mountain formed when molten material or lave from the inside of the Earth is forced through the Earth’s crust by gases. It can produce vast clouds of very fine volcanic dust which looks like smoke. ______ 7. A sinkhole G. It is a storm where you hear thunder and see lightning. There is usually heavy rain. It is an electric storm. ______ 8. Lightning H. It is the most violent storm known on Earth. It is a tropical storm. It forms at sea and causes dangerous, stormy seas. It can reach the land and destroy buildings and trees. It can blow high waves onto the land and cause flooding. II. Complete each sentences with the correct word from the box. drought flood hurricane landslide tornado 1. When there is a ___________, a lot of water covers an area where there usually isn’t water. 2. A ___________ refers to a long time without rain. 3. When there is a ______________, a lot of rocks and earth fall down a hill. 4. A____________ is a storm with a lot of wind that moves over water. 5. A____________ is a storm in which the air moves very quickly in a circle. III. Use the verbs in the box in the correct form to complete the sentences. bury evacuate rage take recover scatter provide suffer 1. The government _____________ health and other services to the affected regions. 2. Action were _____________ to limit the effects of the floods in Quang Ninh. 3. The Red Cross helped homeless families to ____________ from the disaster through the project. 4. The majority of concerned areas have ___________ from cholera epidemics after the floods and landslides in Central America. 5. Early September, mudslides caused by heavy rains _____________ an entire village of 480 inhabitants. 6. Thousands of villagers ____________ from flood-prone areas after the warnings from the weather bureau. 7. Tiny particles of dust, smoke, salt or pollution droplets that ___________ through the air to cause haze. 8. The fires ____________ for more than a week in the southern region of Chile, which has been hit by a severe drought. MONG MỌI NGƯỜI GIÚP ĐỠ

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Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants. If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions...
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Unlike buried treasure and some minerals, fossils are usually not valuable in themselves. However, most of the fossils you find will be of greatest value to you. They will help you learn much about the geologic history of the earth and its inhabitants.

If it were not for fossils, we would have no way of knowing about the animals that once roamed the earth or that once crawled on the bottom of the ancient seas. In fact, we would not even know for sure that there were once seas in some regions if it were not for the many fossils of sea animals that we find there.

You can look at some fossils and see for yourself the shape of the ancient animals. Even if you collect only bits of one kind of fossil, you may still be able to tell what it looked like. Making sense out of fossil bits is a little like working a jigsaw puzzle. Sometimes you will lose pieces, but you can still recognize the picture and even use your imagination to fill in missing details. The habits of ancient sea animals are not so easy to determine. Therefore, scientists study the structure and the habits of similar living animals to learn what the ancient ones must have been like. There are some things, however, that neither the study of fossils nor the study of living animals can tell us. For example, no one knows what colour most ancient sea animals were. Also, since the soft parts disappeared soon after death, many details of their internal structure are unknown. So the pictures of ancient sea creatures (as well as dinosaurs!) are what scientists think the animals looked like. Reconstructing the life of an ancient sea animal on the basis of fossil evidence and the characteristics of similar living animals is a little like relying on circumstantial evidence in court.

1. This passage is mainly about animals that __________.

A. have very tough hides

B. once lived on the earth

C. inhabit the seas of today

D. are becoming extinct

2. With the help of fossils we can __________.

A. reconstruct life of the past

B. predict the future

C. explain the changes of the seasons

D. save some species of animals from extinction

3. Many details of ancient animals are lacking because __________.

A. many species have not been found

B. volcanic disasters have permanently buried many fossils

C.many fossils lie in deep water and cannot be recovered

D. soon after death the soft parts of the body decay

49. To “determine" in the passage is closest in meaning to __________.

A. come across

B. study

C. find out

D. imitate

50. This passage implies that a scientist's evaluation of the past is based on __________.

A. laboratory experiments with live animals

B. a few facts mixed with a lot of opinions

C. predictions made in the past and present

D. field studies of our society

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4 tháng 7 2019

1 B. once lived on the earth

2 A. reconstruct life of the past

3 D. soon after death the soft parts of the body decay

4 C. find out

5 B. a few facts mixed with a lot of opinions

Read the passage and choose the best answer to each question.Volcanoes have been erupting on the earth for millions of years. More than five hundred of them still erupt today. These are called active volcanoes. Volcanoes are located in belts or chains. They are found where the earth’s crust is weak. The weak spots let the hot rock escape when the volcano erupts.Many volcano belts are mountain ranges along the edges of continents. One belt runs along the western coast of South America up...
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Read the passage and choose the best answer to each question.

Volcanoes have been erupting on the earth for millions of years. More than five hundred of them still erupt today. These are called active volcanoes. Volcanoes are located in belts or chains. They are found where the earth’s crust is weak. The weak spots let the hot rock escape when the volcano erupts.

Many volcano belts are mountain ranges along the edges of continents. One belt runs along the western coast of South America up through the western part of the United States. Other volcanoes are found in ocean basins.

About three-fifths of all active volcanoes in the world are in the Pacific Ocean. Many of these volcanoes erupt under the water. The Hawaiian Islands were built by volcanoes that began erupting under water and finally reached the surface of the ocean.

1. The passage says that about five hundred volcanoes_____.

A. will erupt this year B. are still active C. are located under water D. have been discovered

2. Most of the active volcanoes are located in_____.

A. the Pacific Ocean B. South America C. the Atlantic Ocean D. the western United States

3. Which of the following is NOT true?

A. Volcanoes are found in belts or chains. B. The earth’s crust is weak along mountain ranges. C. Hot rock escapes during volcano eruption. D. Volcanoes can be found in the ocean basins.

4. The Hawaiian Islands were built by volcanoes that_____.

A. began erupting under water B. formed a mountain range under water

C. finally reached the surface of the ocean D. both A and C

5. The best title for this selection may be_____.

A. How the Hawaiian Islands Were Built B. At the Bottom of the Ocean

C. The Earth’s Volcanoes D. Why Volcanoes Erupt

1
1 tháng 5 2020

1. The passage says that about five hundred volcanoes_____.

A. will erupt this year B. are still active C. are located under water D. have been discovered

2. Most of the active volcanoes are located in_____.

A. the Pacific Ocean B. South America C. the Atlan Ocean D. the western United States

3. Which of the following is NOT true?

A. Volcanoes are found in belts or chains. B. The earth’s crust is weak along mountain ranges. C. Hot rock escapes during volcano eruption. D. Volcanoes can be found in the ocean basins.

4. The Hawaiian Islands were built by volcanoes that_____.

A. began erupting under water B. formed a mountain range under water

C. finally reached the surface of the ocean D. both A and C

5. The best title for this selection may be_____.

A. How the Hawaiian Islands Were Built B. At the Bottom of the Ocean

C. The Earth’s Volcanoes D. Why Volcanoes Erupt

III. Give the correct form of the words (thể bị động). 1. You must drive your car ________ (CARE) 2. He got bad marks because he did the test ________ (BAD) 3. My younger brother has a beautiful ________ of stamps.(COLLECT) 4. Hoa is so ________ about the trip tomorrow that she can't sleep.(EXCITE) 5. The book is ________ enough for me to read. (INTEREST) 6. You must be ________ when you open the door. (CARE) 7. The village is very quite and ________.(PEACE) 8. Are you fond of...
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III. Give the correct form of the words (thể bị động). 1. You must drive your car ________ (CARE) 2. He got bad marks because he did the test ________ (BAD) 3. My younger brother has a beautiful ________ of stamps.(COLLECT) 4. Hoa is so ________ about the trip tomorrow that she can't sleep.(EXCITE) 5. The book is ________ enough for me to read. (INTEREST) 6. You must be ________ when you open the door. (CARE) 7. The village is very quite and ________.(PEACE) 8. Are you fond of ________ sports. (PLAY) 9. We are very ________ in listening to English songs. (INTEREST) 10. People in my country are very warm and ________. (FRIEND) 11. She looks more ________ than her sister. (BEAUTY) 12. Michael Faraday made a lot of ________ in the field of electric. (INVENT) 13. This river is very ________ for swimmers. ( DANGER) 14. My bag is ________ from yours. ( DIFFER) 15. Sapa is considered the most beautiful ________ resort in the north of carefully Vietnam. ( MOUNTAIN) 16. Last summer the Jones had a ________ vacation in SaPa.(WONDER) 17. At Christmas, millions of ________ cards are sent to friends and relatives. ( GREET) 18. The flowers you sent me were _____________ (BEAUTY) . 19. Bao is always _________ about the homework.(COMPLAIN) 20. Mr. John enjoys _________ to music when he is driving (LISTEN).
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13 tháng 8 2018

III. Give the correct form of the words (thể bị động). 1. You must drive your car ____carefully____ (CARE) 2. He got bad marks because he did the test _____badly___ (BAD) 3. My younger brother has a beautiful _____collection___ of stamps.(COLLECT) 4. Hoa is so ____excited____ about the trip tomorrow that she can't sleep.(EXCITE) 5. The book is ____interesting____ enough for me to read. (INTEREST) 6. You must be ___careful_____ when you open the door. (CARE) 7. The village is very quite and ____peaceful____.(PEACE) 8. Are you fond of ____playing____ sports. (PLAY) 9. We are very ____interested____ in listening to English songs. (INTEREST) 10. People in my country are very warm and ____friendly____. (FRIEND) 11. She looks more ____beautiful____ than her sister. (BEAUTY) 12. Michael Faraday made a lot of _____inventions___ in the field of electric. (INVENT) 13. This river is very ____dangerous____ for swimmers. ( DANGER) 14. My bag is ____different____ from yours. ( DIFFER) 15. Sapa is considered the most beautiful ____moutainous____ resort in the north of carefully Vietnam. ( MOUNTAIN) 16. Last summer the Jones had a ____wonderful____ vacation in SaPa.(WONDER) 17. At Christmas, millions of ___greeting_____ cards are sent to friends and relatives. ( GREET) 18. The flowers you sent me were ______beautiful_______ (BEAUTY) . 19. Bao is always ____complaining_____ about the homework.(COMPLAIN) 20. Mr. John enjoys ___listening______ to music when he is driving (LISTEN).

13 tháng 8 2018

1. carefully

2. bad

3.collection

4. excited

5. interesting

6. careful

7. peaceful

8. playing

9. interested

10. friendly

11. beautiful

12. inventions

13. dangerous

14. different

15. mountainous

16. wonderful

17. greeting

18. beautiful

19. complained

20. listening

Read the text then decide these sentences are true or false CLIMATE CHANGE AND GLOBAL WARMING Climate change Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems,...
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Read the text then decide these sentences are true or false

CLIMATE CHANGE AND GLOBAL WARMING

Climate change

Climate change, also called global warming, refers to the rise in average surface temperatures on Earth. An overwhelming scientific consensus maintains that climate change is due primarily to the human use of fossil fuels, which releases carbon dioxide and other greenhouse gases into the air. The gases trap heat within the atmosphere, which can have a range of effects on ecosystems, including rising sea levels, severe weather events, and droughts that render landscapes more susceptible to wildfires.

The green house effect

While other planets in Earth's solar system are either scorching hot or bitterly old, Earth's surface has relatively mild, stable temperatures. Earth enjoys these temperatures because of its atmosphere, which is the thin layer of gases that cloak and protect the planet. However, 97 percent of climate scientists agree that humans have changed Earth's atmosphere in dramatic ways over the past two centuries, resulting in global warming The exchange of incoming and outgoing radiation that warms the Earth is often referred to as the greenhouse effect because a greenhouse works in much the same way. Incoming UV radiation easily passes through the glass walls of a greenhouse and is absorbed by the plants and hard surfaces inside. Weaker IR radiation, however, has difficulty passing through the glass walls and is trapped inside, thus warming the greenhouse. This effect lets tropical plants thrive inside a greenhouse, even during a cold winter.

Consequences of global warming

There are two major effects of global warming: the increase of temperature on the earth by about 30 to 50C (5.40 to 90Fahrenheit) by the year 2100 are Rise of sea levels by at least 25 meters (82 feet) by the year 2100. Other consequences are listed below:

• Sea levels are rising due to thermal expansion of the ocean, in addition to melting of land ice.

• Amounts and patterns of precipitation are changing.

• The total annual power of hurricanes has already increased markedly since 1975 because their average intensity and average duration have increased.

• Changes in temperature and precipitation patterns increase the frequency, duration, and intensity of other extreme weather events, such as floods, droughts heat waves, and tornadoes.

• Higher or lower agricultural yields, further glacial retreat, reduced summer stream flows, species extinctions.

• Diseases like malaria are returning into areas where they have been extinguished earlier

Sources: Wikipedia | Time for change

Circle the correct answers.

l. Climate change is the rise in average surface temperatures on Earth.

a. true b. false

2.Climate change observed in the last decades is natural.

a. true b. false

3. Fossil fuels are burnt which releases carbon dioxide and other greenhouse gases into the air.

a. true b. false

4. Greenhouse effects have no impacts on our health.

a. true. b. false

5. Earth's surface has relatively mild, stable temperatures while the others are not.

a. true b. false.

6. UV radiation and IR radiation easily passes through the glass walls of a greenhouse and is trapped inside causing greenhouse effect.

a. true b. false

7. Sea levels are rising because of ice melt and thermal pollution.

a. true. b. false.

8. Global warming causes the increase of temperature on the earth and the rise of sea levels.

a. true. b. false

9. Humans have changed Earth's atmosphere in dramatic ways over the past twenty centuries.

a. true b. false

10. Global warming can cause some diseases like malaria.

a. true b. false

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Read this legend, then answer the following questions.. Kitchen Gods Once upon a time, there was a childless couple. The wife was faithful and loved the husband passionately while the husband was treated his wife badly. One day he beat the poor wife with a stick and dismissed her from home. The women had come to another place. She then got married with a kind man, and they lived in harmony. One afternoon when her husband had gone for hunting, a beggar came and a some food. The woman was kind;...
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Read this legend, then answer the following questions.. Kitchen Gods Once upon a time, there was a childless couple. The wife was faithful and loved the husband passionately while the husband was treated his wife badly. One day he beat the poor wife with a stick and dismissed her from home. The women had come to another place. She then got married with a kind man, and they lived in harmony. One afternoon when her husband had gone for hunting, a beggar came and a some food. The woman was kind; filled the poor beggar's bag and recognized that the beggar was her former husband. The man also recognized his wife then. She felt sorry for the man when hearing that from the day he dismissed ber, he was deeply sad and regretful. So he decided to go away to find her until he spent all money and became a beggar. After being offered a big meal, the man was drunk so the woman had to drag him out and hid him in a stack of straw because it was time for her recent husband to come back from the forest. After a while, there was a knock at the door, the hunter appeared with a deer on his back. He then happily asked the woman to go to the market to prepare for the dinner. When the women came back, she found that the stack of straw, where her drunk former husband was sleeping, had been burned with a deer roasted. She cried painfully, and then jumped into the fire. The hunter didn't know what had happened and what to do but jumped into the fire to die beside his wife. At that moment, God was in the heaven, he was moved by the story so he turned three of them into three parts of the earthen tripod so that they could live side foreverand conferred them with the title of Kitchen God to oversee all the cooking of people. Every year, they all together came back to the heaven on the 23"of the 12 lunar month to report to God.

1. Why did the wife have to leave for another place?

2. What did the former husband do after dismissing his wife from home?

3. Why did the wife jump into the fire?

4. What did the hunter do then?

5.Why did God turn them into three parts of the earthen tripod?

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Fiding mistakes in this paragraph : I have lived in a small hometown called Vinh Thanh Hometown for 10 years . It means : I have lived here since I was 6 years old . So that , in 10 years ago until now , I saw all of changes of my hometown .  Firstly , in the past , the road used to be the country road and have a lot of potholes , but now , it is getting beautiful and having blacktop . Not only that , on the roadsides , they also plant some trees and make some street lights . Moreover , the...
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Fiding mistakes in this paragraph :
 I have lived in a small hometown called Vinh Thanh Hometown for 10 years . It means : I have lived here since I was 6 years old . So that , in 10 years ago until now , I saw all of changes of my hometown .  Firstly , in the past , the road used to be the country road and have a lot of potholes , but now , it is getting beautiful and having blacktop . Not only that , on the roadsides , they also plant some trees and make some street lights . Moreover , the houses used to be small and ugly . But nowadays , they are getting spacious and nice . In addition , the schools uesd to have only one floor and look very fallen . Today , the schools have two floors , a big playground , mordern equipment and look very secure . In 2006 , people here were very poor . Most of them had only one bike , just 5 or 6 families had a motorbike . Besides , the environment was very clean . But in 2016 , people become richer than in the past . All of them have at least two motorcycles . And every children has a bicycle to go to school everyday . Furthermore , recent years , in my hometown , there are a lot of cars run on the road . Because of these , my hometown is getting polluted . Anyway , the changes of my hometown made me surprised a lot and i love my hometown very much.

1
31 tháng 7 2016

1.hometown => town

2.bỏ "in"

3.all => a lot

4.have => had

5.beautiful => more beautiful

7.spacious and nice => more spacious and nicer.

9.uesd => used

14.recent years => in recent years

15.run => running

Lỗi sai đk tìm thấy ở từng dòng theo thứ tự như trên 

 

23 tháng 8 2018

Read the story. Fill in the blank with one suitable word.

John's parents gave him a red drum for his eight birthday. When John (0)...opened....his present early that morning, he was very (1).........surprised.........to see a drum inside! He started to play it very loudly. He played it all morning and then after lunch he wanted to play it again. But his mum felt ill. She had a bad (2)....headache..... because John and his drum were so noisy. His dad said, "John, if you want to play your drum, go outside please." John went into the garden and played his drum there. After fives minutes, he (3)........heard........some lovely music. He went out into the street and saw a lot of people there. It was the circus! They drove into town in their lories and trucks. The (4)......driver..........of the first truck stopped when he saw John. John jumped on the back of the truck and (5)........went ........ into town with them. He played his drum all the way there!

23 tháng 8 2018

John's parents gave him a red drum for his eight birthday. When John (0)...opened....his present early that morning, he was very (1).......surprised...........to see a drum inside! He started to play it very loudly. He played it all morning and then after lunch he wanted to play it again. But his mum felt ill. She had a bad (2)...earache...... because John and his drum were so noisy. His dad said, "John, if you want to play your drum, go outside please." John went into the garden and played his drum there. After fives minutes, he (3)........had played........some lovely music. He went out into the street and saw a lot of people there. It was the circus! They drove into town in their lories and trucks. The (4).......driver.........of the first truck stopped when he saw John. John jumped on the back of the truck and (5).......went......... into town with them. He played his drum all the way there!

 Put each verb in brackets into a suitable past verb form.When Professor Mallory the famous archaeologist   invited  me to take part in his expedition to find the Lost City of the Himalayas I (1)...................... (not hesitate) to accept his invitation. Mallory (2).......................... (discover) an ancient map showing the position of the city although no European (3).................. (ever go) to the area before. In fact most of Mallory s colleagues either (4)...
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 Put each verb in brackets into a suitable past verb form.
When Professor Mallory the famous archaeologist   invited  me to take part in his expedition to find the Lost City of the Himalayas I (1)...................... (not hesitate) to accept his invitation. Mallory (2).......................... (discover) an ancient map showing the position of the city although no European (3).................. (ever go) to the area before. In fact most of Mallory s colleagues either (4) ..........................(believe) that the city (5)....................... (never exist) or (6) .....................(feel) that it (7)...................... (vanish) long ago and (8)....................... (become) simply a legend. According to the Professor the builders of the city (9) .........................(hide) it among the mountains in order to protect its immense riches. He (10) ......................(believe) that the descendants of these ancient people (11) .......................(still keep) themselves apart from the rest of mankind for the very same reasons. So when we (12).................... (set off) on a cool May morning towards the distant mountains each of us (13) ................(look forward) to exciting discoveries. For a week or more we (14) ......................(climb) higher and higher following the map which Mallory (15)...................... (study) from time to time. Then one afternoon while we (16)..................... (rest) at the top of a valley we (17)...................... (notice) that a rider on a horse (18) ....................(wave) at us from the other side of the valley. A rider whose clothes (19)....................... (shine) like gold!

0