C
Have you ever seen those tall, pointed mountains that look like something from a fairy tale, or explored huge caves full of strange shapes? These are part of karst landscapes(喀斯特地貌), a natural wonder that China is famous for.
Karst is a special landform formed over millions of years. When rainwater, which is slightly acidic(酸性的), falls on limestone (a type of rock), it slowly breaks down the rock. This process creates amazing shapes on the surface and underground. In China, you can find some of the most breathtaking karst scenery in the world.
The Stone Forest (Shilin) in Yunnan is a fantastic example. It looks like a real forest made of stone. Walking through it, you will be amazed by the countless stone peaks and towers. Local Yi people even have a famous festival there. Another world-famous site is the South China Karst in Guilin and Yangshuo. The landscape there has the feature of green-covered karst hills standing along the beautiful Li River. It is so beautiful that it appears on the back of the 20-yuan Chinese banknote. Taking a boat trip along the river is like travelling through a Chinese painting.
Besides the beautiful surface views, karst areas also hide unbelievable underground worlds, such as the Reed Flute Cave in Guilin. Inside, you can see stunning stalactites (hanging from the ceiling) and stalagmites (rising from the floor), all lit up by colourful lights, creating a magical scene.
These karst landscapes are not just beautiful; they are also valuable for scientific research. However, they face threats from pollution and too much tourism. Protecting these natural wonders is very important so that future generations can also enjoy their beauty.
() 7. How does the writer start paragraph 1?
A. By telling a story.
B. By comparing facts.
C. By asking questions.
D. By giving examples.
() 8. What is the main cause of the formation of karst landscapes?
A. Strong winds and earthquakes.
B. Acidic rainwater washing away limestone.
C. The movement of moving ice.
D. Volcanic activities under the earth.
() 9. What does the underlined word "feature" in paragraph 3 mean?
A. Symbol.
B. Sign.
C. Characteristic.
D. Attraction.
()10. What is the main purpose of this passage?
A. To suggest travelling to Yunnan and Guangxi.
B. To explain how karst landscapes are formed.
C. To call for action to protect the environment.
D. To provide basic information about karst landscapes.
Have you ever seen those tall, pointed mountains that look like something from a fairy tale, or explored huge caves full of strange shapes? These are part of karst landscapes(喀斯特地貌), a natural wonder that China is famous for.
Karst is a special landform formed over millions of years. When rainwater, which is slightly acidic(酸性的), falls on limestone (a type of rock), it slowly breaks down the rock. This process creates amazing shapes on the surface and underground. In China, you can find some of the most breathtaking karst scenery in the world.
The Stone Forest (Shilin) in Yunnan is a fantastic example. It looks like a real forest made of stone. Walking through it, you will be amazed by the countless stone peaks and towers. Local Yi people even have a famous festival there. Another world-famous site is the South China Karst in Guilin and Yangshuo. The landscape there has the feature of green-covered karst hills standing along the beautiful Li River. It is so beautiful that it appears on the back of the 20-yuan Chinese banknote. Taking a boat trip along the river is like travelling through a Chinese painting.
Besides the beautiful surface views, karst areas also hide unbelievable underground worlds, such as the Reed Flute Cave in Guilin. Inside, you can see stunning stalactites (hanging from the ceiling) and stalagmites (rising from the floor), all lit up by colourful lights, creating a magical scene.
These karst landscapes are not just beautiful; they are also valuable for scientific research. However, they face threats from pollution and too much tourism. Protecting these natural wonders is very important so that future generations can also enjoy their beauty.
() 7. How does the writer start paragraph 1?
A. By telling a story.
B. By comparing facts.
C. By asking questions.
D. By giving examples.
() 8. What is the main cause of the formation of karst landscapes?
A. Strong winds and earthquakes.
B. Acidic rainwater washing away limestone.
C. The movement of moving ice.
D. Volcanic activities under the earth.
() 9. What does the underlined word "feature" in paragraph 3 mean?
A. Symbol.
B. Sign.
C. Characteristic.
D. Attraction.
()10. What is the main purpose of this passage?
A. To suggest travelling to Yunnan and Guangxi.
B. To explain how karst landscapes are formed.
C. To call for action to protect the environment.
D. To provide basic information about karst landscapes.
答案：7.C 8.B 9.C 10.D
解析：
7. 文章第一段开头用了"Have you ever seen those tall, pointed mountains... or explored huge caves full of strange shapes?"两个问句引入话题，是通过提问的方式开篇，因此选C。
8. 根据第二段内容"When rainwater, which is slightly acidic, falls on limestone (a type of rock), it slowly breaks down the rock. This process creates amazing shapes on the surface and underground."可知，喀斯特地貌形成的主要原因是酸性雨水冲刷分解石灰岩，因此选B。
9. 划线词所在句表达的是桂林阳朔的景观有着"被绿植覆盖的喀斯特小山伫立在美丽漓江旁"的特点，feature此处意为"特征、特色"，和Characteristic意思一致，因此选C。
10. 全文依次介绍了喀斯特地貌的定义、形成原因、中国知名的喀斯特景观、其科学价值以及保护的必要性，整体目的是向读者介绍关于喀斯特地貌的基础信息，因此选D。
8. 根据第二段内容"When rainwater, which is slightly acidic, falls on limestone (a type of rock), it slowly breaks down the rock. This process creates amazing shapes on the surface and underground."可知，喀斯特地貌形成的主要原因是酸性雨水冲刷分解石灰岩，因此选B。
9. 划线词所在句表达的是桂林阳朔的景观有着"被绿植覆盖的喀斯特小山伫立在美丽漓江旁"的特点，feature此处意为"特征、特色"，和Characteristic意思一致，因此选C。
10. 全文依次介绍了喀斯特地貌的定义、形成原因、中国知名的喀斯特景观、其科学价值以及保护的必要性，整体目的是向读者介绍关于喀斯特地貌的基础信息，因此选D。