Tui: Hi, Andrew. Isn't the snow great?

Andrew: Yes. New snow makes everything white and very beautiful.

Jane: Snow is nice at the start, but when it melts (融化), it becomes dirty water.

Tui: Maybe, but this is my first time to see snow. It's great.

Jane: Don't you have snow in Thailand?

Tui: No, never. It's too hot there.

Kate: Wow, it's special. It often snows here in America.

Andrew: So this must be fun for you.

Tui: Yes, very fun. I began to watch the snow fall when it started yesterday afternoon. I even went outside to play for about half an hour.

Jane: This morning the snow stopped. Now the sky (天空) is clear and the sun is shining (照耀) on the new snow. That is good to see too.

Tui: How long will the snow last before it melts?

Andrew: If the weather stays cold, the snow can be here for some days or a week.

Tui: Great. I want to play in it as much as possible. Do you want to go outside with me?

Jane: Sure, I can do that.

Andrew: Yes, that' 11 be something good to do.

Kate: Let's go!

    ”I am so happy!" said Gorilla. "The Great King Ape is coming for dinner!"

    Chimp was happy too, and he jumped up and down.

    "I will cook a great meal for the Great King Ape!" said Gorilla.

    "I will cook too!" said Chimp.

    But Gorilla did not want Chimp t~ cook. He was sloppy. He often made a mess (搞的一团糟). He would ruin (破坏) her great meal. So she asked chimp to buy some drinks.

    When, Chimp came home, he asked, May I cook now?

    "We still need bananas," said Gorilla. "Please pick the best bananas you can find. I want to cook sliced (切片的) bananas for dessert (甜点)."

    Soon Chimp brought back a bag of bananas and put the bag on the kitchen chair. Gorilla walked into the kitchen. She did not see the bag and sat down on the chair. "Oh, no! My bananas! They are ruined!" Gorilla started to cry.

    "Don' t cry, Gorilla," said Chimp. "I have an idea for a nice dessert."

    Chimp took out a big bowl and a spoon (勺子). He peeled (剥皮) some bananas, put them in the big bowl and mashed (捣碎) them with the spoon. Then he put some milk in. At last, Chimp put it into a small bowl.

    Soon the Great King Ape arrived. He ate up all the food. "This is the best meal I have had!" he said.

    Chimp brought out the dessert. The Great King Ape tried it. "Delicious!" he said. "You are both great!"

    "Thank you," said Gorilla. She smiled at Chimp. "Chimp is a wonderful cook," she thought.

— ________, Jenny. You can do it.

— I'm not sure. I ________ take a trip to Taiwan.

— ________ you turn off the lights and the computer.

    The weather in England changes quickly. You m experience four seasons in a day. In spring the sun often shines. The weather is getting warmer and you can hope for more s days. Summer and autumn are the best time in a year. It is s in winter.

    January and February are the coldest m of the year, while the warmest are often July and August. The average t for winter is about 4.5℃, and for summer it is about 15.5℃.

    C to England, it is d in summer in China. Sometimes people depend on groundwater(地下水) to water plants. And in winter it is more f than that in England. But in China, the weather in spring or autumn is often p. It's the best time for foreign tourists to v China.

C

    Paul is a photographer(摄影师). He went to the Arctic to take pictures for NationalGeographic(《国家地理》). Finally, he saw a big and white polar bear swimming to him in the icy water.

    Paul lay down the ice to get a better photo, but the polar bear jumped out of the water and tried to attack him! Luckily for Paul, the ice cracked(破裂), or broke and the bear fell back into the water. The polar bear wasn't so lucky. It couldn't get a meal and had to swim farther away to find food.

    To understand the polar bear's problem, you need to know two things about the Arctic. First, the Arctic is mostly ocean(海洋). Second, ice covers(覆盖) a lot of the Arctic Ocean. In winter, the ice is thick, but in summer, the ice becomes thinner and breaks into pieces. Sea ice is the key to survival for Arctic animals. However, because of global warming, Arctic temperatures are rising and polar ice is melting(融化).

    Polar bears need ice  to hunt(捕捉) seals, their favourite meal. They stand on the ice and wait for the seals to come up for air. As Arctic ice melts, polar bears have to swim farther to find ice floes, or large pieces of floating ice. Sometimes, bears have to swim more than 200 km to find an ice floe. Some bears cannot swim that far and sadly they drown(淹死).

    On his last trip, Paul saw three dead bodies of polar bears. Before global warming threatened(威胁) Arctic ice, a dead bear was a rare sight. Paul is sad to see the dead bodies. Wildlife experts(专家) think global warming will have a terrible effect(影响) on polar bears. In the future, polar ice will continue to shrink and endanger the bears. Some scientists believe 65 percent of the world's polar bears will disappear(消失) by 2050. In other words, polar bears are in great danger.