難度指數(shù)：★★★☆☆

故事導(dǎo)讀：

行星博士經(jīng)常帶他的學(xué)生去地球上不同的地方考察。今天，行星博士的北極熊朋友弗雷德來(lái)看他和他的學(xué)生們。弗雷德告訴他們?cè)S多關(guān)于北極的趣事。學(xué)生們都很興奮，所以行星博士決定這次帶他的學(xué)生去北極，一起來(lái)場(chǎng)北極大冒險(xiǎn)吧。

Doctor Planet often takes his students to different places on Earth. Today， his?polar bear friend， Fred， comes to visit him. Fred tells them many interesting things?about the North Pole. Kids are very excited. So Doctor Planet decides to take them?to the North Pole this time. Lets go with them together and find out what they?learn.

On their way， Doctor Planet takes out a map and says，“Look， kids. Inside the?yellow line is the North Pole. Thick ice is all over this place. In winter， there is?almost no sunshine here. And it is very cold.”

“We have thick fur to keep us warm. And we live happily here，”says Fred，?“Eskimos and other animals also make their home in the North Pole.”

“Tell us something about the animals here，”says one student.

“Sure，”says Doctor Planet，“As you can see， there are many sea animals here.?Penguins， sea lions， seagulls， white whales and some fish all live in the North?Pole.”

“You forgot Fred！”shouts one student.

“Well， I will introduce myself，”says Fred.“We love eating meat. Sea lions?are our favorite food. When we are born， we weigh 600g， but Im 450kg now. We?have a sharp sense of smell. And we are good at swimming.”

At last， they go to a research station. Scientists from?different countries are working here. A scientist tells them?the Earth is becoming warmer now. So the ice becomes?thinner. And many animals have to leave their home.

“What can we do to help？”someone asks.

“We have to protect the environment. So?we can keep our Earth healthy，” says the?scientist.“For example， tell your parents to drive?your family car less. Dont turn the air?conditioner too low in summer.”

“We will remember that. And we will tell?others what we learn today！”shouts the students.

（馨文/摘編）