题目内容：

 

The first time I went to Grand Canyon National Park, I knew I wanted to work there as a park ranger. Park rangers protect the parks’ animals, plants, land, buildings, and people.

Now, as a park ranger for Grand Canyon National Park, I share the science, history and beauty of this park with thousands of visitors from around the world.

National parks are like outdoor museums. Park rangers have all kinds of jobs, depending on where they work and what they studied during college. I teach school field trips, work at visitor centers and help people stay safe during their visit.

My favorite part of my job is showing children their first look at the Grand Canyon during school field trips. Children are often amazed at the canyon’s size and colors. Sometimes, they think it looks like a painting.

Being a park ranger requires a lot of energy. I walk several miles and talk with hundreds of people each day. Nearly 5 million people visit Grand Canyon National Park every year. Park rangers must enjoy working with people and speaking in front of groups.

Park rangers must also be prepared for any situation. Recently, I broke up a traffic jam (堵塞) caused by a huge elk (麋鹿) standing in the road. Elk can become dangerous when they get scared, so I asked visitors to stop their cars and take pictures from far away. Believe it or not, I also help protect people from squirrels (松鼠). It is not allowed to feed wild animals in national parks. But sometimes, visitors try to feed squirrels.

根据材料内容简要回答下列问题。

1.When did the writer want to be a park ranger?

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2.What does the writer think of national parks?

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3.What does the writer like to do best during her job?

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4.Why does a park ranger need a lot of energy?

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5.What’s the writer’s purpose of writing the last paragraph?

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