*XI.       Complete the passages with the words from the box.

      Son Doong cave is world’s (1) ____________ cave, located in QuangBinh province,Vietnam. It was (2) ____________ by a local man named Ho Khanh in 1991 and wasrecently discovered in 2009 by British cavers, led by Howard Limbert. The name “SonDoong" cave (3) ____________ “mountain river cave”. The cave was created 2-5 millionyears ago by river water eroding away the (4) ____________ underneath the mountain.

      At about 9 kilometers in length, 200 meters in (5) ____________ and 150 meters inheight, Son Doong Cave is (6) ____________ larger than Deer Cave in Malaysia and hasreplaced Deer Cave to take pole position (7) ____________ the world’s largest cave.

*X. Read the text carefully, then choose the correct answers.

      Where are you going for your next holiday? How about Australia?

      Australia has got 37,000km of coastline and the best beaches in the world! The GreatBarrier Reef is off the north-east coast of Australia. It’s the largest coral reef in the sea! You can take a boat to it and dive there. It’s a fantastic undersea world.

      Inland Australia is called ‘the outback’. There are lot of wild camels, and there are some you can ride, too! There are fantastic national parks, where you can camp under the stars. In the Uluru National Park, there’s a very big sandstone rock, called Ayers Rock. It looks amazing in the evening sun.

      Do you like adventure? Then you can take a canoe trip along the Murray River. It’s Australia’s longest river. Another good trip for adventurous people is to the Blue Mountains. These are west Sydney in New South Wales. The mountains look blue and they contain lots of unusual animals and plants.

      Australia has got its own rainforest. It’s along the coast of North Queensland. It’s only 900,000 hectares today, but it once covered all of Australia. You can see lots of interesting animals in the rainforest, but be careful of the crocodiles!

      Do you like wildlife? Australia has got a unique type of animal - marsupials. These include kangaroos, koalas and platypuses. You can see them in the Yanchep National Park, near Perth in Western Australia. Remember the koalas aren’t teddy bears. They can be dangerous!

      -coral reef (n): rạn san hô                               - marsupial (n): thú có túi

      -platypus (n): thú mó vịt

1.   ___________ is off the coast of Australia.

      a. Ayers Rock                                                 b. The Yanchep National Park

      c. The rainforest                                              d. The Great Barrier Reef

2.   Ayer Rock is___________.

      a. in the Yanchep National Park                     b. a huge sandstone rock

      c. a coral reef in the sea                                  d. also called Uluru National Park

4.   Australia is famous for___________.

      a. its largest rainforest                                    b. the longest river in the world

      c.its unique animals                                        d. beautiful national parks

5.   Which sentence is not true?

      a.Australia was once mostly covered in rainforest

      b.The Blue Mountains are situated not far from Sydney.

      c.You can see platypuses in the wild in Australia.

      d.Australian crocodiles live in the outback.

Read the passage, and choose the correct answer A, B, C or D for each question.

Son Doong Cave

Located in the limestone mountains of Phong Nha - Ke Bang National Park. Son Doong Cave was first found in 1991 by Ho Khanh, a local man. In 2009, the cave was explored and published by a group of scientists from British Cave Research Association.

Son Doong Cave was formed from 2 to 5 million years ago, when the river flowed through the limestone mountain area and was buried. The water eroded limestone and created an underground tunnel. In soft limestone areas, the collapse of tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8 5km long. Especially, Son Doong consists of two entrances, which is unique among explored caves in Phong Nha - Ke Bang National Park. Exploring the cave, visitors were surprised with spectacular scenery of numerous stalactites of which some giant stalagmites are more than 70 metres high. Deep inside the cave exists a grandiose tropical jungle called “Garden of Eden" by the explorers. The jungle is home to a diversifiedsystem of fauna and flora. Besides, the cave possesses a 2.5-kilometre underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of tens of thousands of small stone pieces in dry ponds, contributing to magnificent beauty of the cave.

The reason why Son Doong Cave was formed is that ………..

A. an underground tunnel was buried in the area

B. the limestone areas were soft

C.it only happened from 2 to 5 million years ago

D. the river was buried in the limestone mountains

Read the passage, and choose the correct answer A, B, C or D for each question.

Son Doong Cave

Located in the limestone mountains of Phong Nha - Ke Bang National Park. Son Doong Cave was first found in 1991 by Ho Khanh, a local man. In 2009, the cave was explored and published by a group of scientists from British Cave Research Association.

Son Doong Cave was formed from 2 to 5 million years ago, when the river flowed through the limestone mountain area and was buried. The water eroded limestone and created an underground tunnel. In soft limestone areas, the collapse of tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8 5km long. Especially, Son Doong consists of two entrances, which is unique among explored caves in Phong Nha - Ke Bang National Park. Exploring the cave, visitors were surprised with spectacular scenery of numerous stalactites of which some giant stalagmites are more than 70 metres high. Deep inside the cave exists a grandiose tropical jungle called “Garden of Eden" by the explorers. The jungle is home to a diversifiedsystem of fauna and flora. Besides, the cave possesses a 2.5-kilometre underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of tens of thousands of small stone pieces in dry ponds, contributing to magnificent beauty of the cave.

The reason why Son Doong Cave was formed is that ………..

A. an underground tunnel was buried in the area

B. the limestone areas were soft

C.it only happened from 2 to 5 million years ago

D. the river was buried in the limestone mountains

Read the passage, and choose the correct answer A, B, C or D for each question.

Son Doong Cave

Located in the limestone mountains of Phong Nha - Ke Bang National Park. Son Doong Cave was first found in 1991 by Ho Khanh, a local man. In 2009, the cave was explored and published by a group of scientists from British Cave Research Association.

Son Doong Cave was formed from 2 to 5 million years ago, when the river flowed through the limestone mountain area and was buried. The water eroded limestone and created an underground tunnel. In soft limestone areas, the collapse of tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8 5km long. Especially, Son Doong consists of two entrances, which is unique among explored caves in Phong Nha - Ke Bang National Park. Exploring the cave, visitors were surprised with spectacular scenery of numerous stalactites of which some giant stalagmites are more than 70 metres high. Deep inside the cave exists a grandiose tropical jungle called “Garden of Eden" by the explorers. The jungle is home to a diversifiedsystem of fauna and flora. Besides, the cave possesses a 2.5-kilometre underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of tens of thousands of small stone pieces in dry ponds, contributing to magnificent beauty of the cave.

All of the following are the wonderful features of Son Doong Cave EXCEPT ………

A. tropical jungle inside with the biodiversity

B. spectacular scenery of numerous stalactites and stalagmites

C. a river flowing over 2.5 kilometers along the cave

D. the big sizes of the cave and the giant domes

Read the passage, and choose the correct answer A, B, C or D for each question.

Son Doong Cave

Located in the limestone mountains of Phong Nha - Ke Bang National Park. Son Doong Cave was first found in 1991 by Ho Khanh, a local man. In 2009, the cave was explored and published by a group of scientists from British Cave Research Association.

Son Doong Cave was formed from 2 to 5 million years ago, when the river flowed through the limestone mountain area and was buried. The water eroded limestone and created an underground tunnel. In soft limestone areas, the collapse of tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8 5km long. Especially, Son Doong consists of two entrances, which is unique among explored caves in Phong Nha - Ke Bang National Park. Exploring the cave, visitors were surprised with spectacular scenery of numerous stalactites of which some giant stalagmites are more than 70 metres high. Deep inside the cave exists a grandiose tropical jungle called “Garden of Eden" by the explorers. The jungle is home to a diversifiedsystem of fauna and flora. Besides, the cave possesses a 2.5-kilometre underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of tens of thousands of small stone pieces in dry ponds, contributing to magnificent beauty of the cave.

The most important feature of “Garden of Eden” is ………

A.the biodiversity

B. giant stalagmites

C. the biggest length

D. the river below

Read the passage, and choose the correct answer A, B, C or D for each question.

Son Doong Cave

Located in the limestone mountains of Phong Nha - Ke Bang National Park. Son Doong Cave was first found in 1991 by Ho Khanh, a local man. In 2009, the cave was explored and published by a group of scientists from British Cave Research Association.

Son Doong Cave was formed from 2 to 5 million years ago, when the river flowed through the limestone mountain area and was buried. The water eroded limestone and created an underground tunnel. In soft limestone areas, the collapse of tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8 5km long. Especially, Son Doong consists of two entrances, which is unique among explored caves in Phong Nha - Ke Bang National Park. Exploring the cave, visitors were surprised with spectacular scenery of numerous stalactites of which some giant stalagmites are more than 70 metres high. Deep inside the cave exists a grandiose tropical jungle called “Garden of Eden" by the explorers. The jungle is home to a diversifiedsystem of fauna and flora. Besides, the cave possesses a 2.5-kilometre underground river. Not far from the “Garden of Eden” lies an enormous “pearl collection” consisting of tens of thousands of small stone pieces in dry ponds, contributing to magnificent beauty of the cave.

We can infer from the passage that …………..

A. tunnels and giant domes were formed at the same time

B. “pearl collection” contains a lot of precious stones

C. we can live the cave with the air and water

D. “Garden of Eden” is in the underground river