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Why is this happening? A big reason is global warming. Global warming is like the Earth wearing a thick jacket. Normally, some gases in the air trap just enough of the sun's heat to keep our planet warm. But now, human activities are creating too many of these gases (this is called pollution). This makes the "jacket" too thick, so the Earth gets warmer and warmer.

We can already see signs of global warming. Our major sign is in the coldest places on Earth—the North and South Poles. The huge ice sheets there are melting (融化) and breaking apart. When the ice melts, it flows into the ocean, making sea levels rise. This can lead to floods in coastal cities. Scientists worry that a lot of this ice might be gone by the year 2100. In other places, global warming can cause the opposite (相反的) problem: droughts. When there's no rain for a long time, the land becomes very dry, which can easily start wildfires.

So, what can we do? Scientists say we need to reduce pollution to slow down global warming. We can help by using cars less and walking or biking more. We also need to find cleaner ways to make electricity, like using solar or wind power.

Honesty helps start a good friendship. Friends must be able to trust each other. If you don't tell the truth, people usually find out. If a friend finds out that you are not honest, you may lose your friend's trust. Good friends should always speak and act honestly.

Generosity means sharing and sharing makes a friendship grow. You don't have to give your lunch money or your clothes, or enjoyments, like your hobbies and your interests. Naturally you will want to share your ideas and feelings. They tell your friend what is important to you. By sharing them, you help your friend know you better.

Sooner or later everyone needs understanding and help with a problem. Something may go wrong at school. Talking about the problem can make it easier to solve. Turning to a friend can be a first step in solving the problem. So to be a friend you must listen and understand. You must try to put yourself in your friend's place so you can understand the problem better.

No two friendships are ever exactly alike. But all true friendships have three things in common. If you plan to keep your friendships, you must practice honesty, generosity and understanding.

Starting from this month, ABC Supermarket will not give you any plastic bags on Fridays. You should bring your own bags when shopping. If you do not have your own bag, you can buy our recyclable (可回收) bags at 1 yuan each. Remember to bring your own bag the next time you shop at ABC Supermarket!

Do you know?

People throw many plastic bags into the sea every year.

Many sea animals die because of them.

Buy 2 bags and get the third one for free (免费)!

It was cloudy, rainy and cold. For the days in late November, the colorful leaves were now1 fast. I felt it was hard for me to be2 in such weather. I tried to smile, but I couldn't. I walked on through the thick leaves and my shoes slowly got wet. My body was3. My energy was low.

I felt something warm all of a sudden. A break in the4 appeared and the sunlight was shining through it down to the earth once again. I closed my eyes and turned my face to the sweet sunshine. Its warmth washed over me. Then I5 and saw the leaves left on the tree shining in the sunlight. Their colors were even brighter. I felt my spirits rising slowly as well.

The few minutes of light6 me with joy. I walked back home,7 to nature and amazed at what a little break in the cloud could do.

In our lives, we all8 times when the world seems cold, dark and gray. In these times, nature calls on us to break through the clouds ourselves and share our9 with the world. So when the gray days come, don't sit in the dark. Instead, break through clouds10. A helping hand, a kind word or a small act of love can warm and shine light into another's heart.

It is 6：00 am in December. And it is still dark in a village in Guizhou. But Wu Yujie is already playing football with her teammates in the playground. The girls practise for about four hours every day. Xu Zhaowei is the football teacher.

Xu came to the school to help with rural education(农村教育). In 2017, Xu began to teach the students how to play football. Later he made a football team. As a football lover, Xu had some knowledge about football. He didn't expect(期望) the girls to play well. However, the girls won first prize in a competition. He was really surprised at the news."They practise hard and never give up，" said Xu. 

Xu thinks football helps students in their education. So he plans to try his best to help the football team. Now, the sport is helping the students achieve their dreams, such as taking a  plane and seeing the sea. In the future, the students will get a lot more from playing football.

As a child, Bethany Hamilton's dream was to become a surfer.

总结：as作为；one's dream is to…某人的梦想是……

仿写：小时候他的梦想是成为一名医生。

We can finish the work  this Sunday  next Sunday.

  them was tired after running the long race.

The girl   and she does everything carefully.

His mother is very patient and doesn't    him.

He must   by his own efforts now.