美国黄石公园简介
美国黄石公园简介

Yellowstone National Park became America's first national park in 1872. The National Park Service was formed 44 years later in 1916. Yellowstone, which is mostly in the state of Wyoming, is considered as an example of the success of the National Park System. Humans have been present in Yellowstone for more than 11,000 years. Yellowstone contains beautiful mountains, deep canyons, lakes and rivers. The name Yellowstone comes from the river running through the area. At first known as Rock Yellow River, it became known as the Yellowstone River.
Yellowstone is host to many different species of plants. However, the park is most special because of a volcano, known as the Yellowstone Caldera. The caldera is 48 by 72 kilometers. And it remains an active volcano. It is believed that the last time the volcano erupted was one half million years ago. Yellowstone is filled with many hot springs. The most famous one is Old Faithful. It erupts about every hour or hour and a half. The eruption can last from one and a half minutes up to 5 minutes. 
In addition to its beauty and wonder, Yellowstone is an animal sanctuary(避难所). It is home to the largest group of wild animals in the United States. As you travel through the park, you can sometimes see them in their natural habitat. There is still a wild west in America and its name is Yellowstone.

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1.The government spent _______ building the National Park Service.

A 16 years

B 44 years

C 54 years

D 66 years

解析：选B。细节理解题。根据第一段第一句The National Park Service was formed 44 years later in 1916.可知，黄石公园设施44年才建成，故选B。

2.In the park you can see a lot of things EXCEPT _______.

A canyons

B lakes

C waterfalls

D springs

解析：选C。细节理解题。根据第一段第五句Yellowstone contains beautiful mountains, deep canyons, lakes and rivers.可知，瀑布没提到，故选C。

3.From the passage, we can know the Yellowstone Caldera is ______.

A a huge river

B an active volcano

C a kind of plant

D a kind of animal

解析：选B。细节理解题。根据第二段第二句However, the park is most special because of a volcano, known as the Yellowstone Caldera. 可知，它是一座活火山，故选B。

4.The underlined word “eruption” means ________ in Chinese.

A 喷发

B 冲突

C 断裂

D 瓦解

解析：选A。词义猜测题。此处讲的是火山“喷发”，故选A。

5.What’s the best title of the passage?

A Yellowstone National Park.

B A great place for you to visit.

C How to protect wild animals.

D An introduction of America.

解析：选A。文章标题题。本文向我们介绍了黄石公园，故选A。