Lesson 3

Câu hỏi trắc nghiệm

Read the passage carefully and choose the correct answer.

SON DOONG CAVE

Located in the limestone mountains of Phong Nha - Ke Bang National Park, Son Doong Caves 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 the tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8.5 km 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 diversified system 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 the magnificent beauty of the cave.

Một số từ vựng:

- explore (v): khám phá

- flow (v): chảy

- erode (v): làm xói mòn

- collapse (n): sự sụp đổ

- entrance (n): lối vào

- diversified system of fauna and flora: hệ thống động thực vật đa dạng và phong phú

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

  1. it only happened from 2 to 5 million years ago
  2. the river was buried in the limestone mountains
  3. the limestone areas were soft
  4. an underground tunnel was buried in the area the river was buried in

Read the passage carefully and choose the correct answer.

SON DOONG CAVE

Located in the limestone mountains of Phong Nha - Ke Bang National Park, Son Doong Caves 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 the tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8.5 km 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 diversified system 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 the magnificent beauty of the cave.

Một số từ vựng:

- explore (v): khám phá

- flow (v): chảy

- erode (v): làm xói mòn

- collapse (n): sự sụp đổ

- entrance (n): lối vào

- diversified system of fauna and flora: hệ thống động thực vật đa dạng và phong phú

 The most important feature of “Garden of Eden” is _______.

  1. giant stalagmites
  2. the biodiversity
  3. the biggest length
  4. the river below

Read the passage carefully and choose the correct answer.

SON DOONG CAVE

Located in the limestone mountains of Phong Nha - Ke Bang National Park, Son Doong Caves 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 the tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8.5 km 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 diversified system 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 the magnificent beauty of the cave.

Một số từ vựng:

- explore (v): khám phá

- flow (v): chảy

- erode (v): làm xói mòn

- collapse (n): sự sụp đổ

- entrance (n): lối vào

- diversified system of fauna and flora: hệ thống động thực vật đa dạng và phong phú

We can infer from the passage that _______.

  1. tunnels and giant domes were formed at the same time
  2. “pearl collection” contains a lot of precious stones
  3. “Garden of Eden” is in the underground river
  4. we can live in the cave with the air and water

Read the passage carefully and choose the correct answer.

SON DOONG CAVE

Located in the limestone mountains of Phong Nha - Ke Bang National Park, Son Doong Caves 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 the tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8.5 km 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 diversified system 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 the magnificent beauty of the cave.

Một số từ vựng:

- explore (v): khám phá

- flow (v): chảy

- erode (v): làm xói mòn

- collapse (n): sự sụp đổ

- entrance (n): lối vào

- diversified system of fauna and flora: hệ thống động thực vật đa dạng và phong phú

All of the following are the wonderful features of Son Doong Cave EXCEPT _______.

  1. a river flowing over 2.5 kilometres along the cave
  2. spectacular scenery of numerous stalactites and stalagmites
  3. a tropical jungle inside with the biodiversity
  4. the big sizes of the cave and the giant domes

Read the passage carefully and choose the correct answer.

SON DOONG CAVE

Located in the limestone mountains of Phong Nha - Ke Bang National Park, Son Doong Caves 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 the tunnel ceiling formed large holes which became giant domes afterward. The cave is about 200m high, 200m wide and at least 8.5 km 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 diversified system 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 the magnificent beauty of the cave.

Một số từ vựng:

- explore (v): khám phá

- flow (v): chảy

- erode (v): làm xói mòn

- collapse (n): sự sụp đổ

- entrance (n): lối vào

- diversified system of fauna and flora: hệ thống động thực vật đa dạng và phong phú

The feature that makes it different from other caves in Phong Nha - Ke Bang National Park is _______.

  1. stalactites and stalagmites
  2. its discovery by a local man
  3. the two entrances into the cave
  4. large holes in the ceiling