To understand why the Earth is warming up.{#blank#}1{#/blank#}  (one) of all, we need to understand why it is warm. Our planet {#blank#}2{#/blank#} (cover) with atmosphere(大气）.Sunlight passes  {#blank#}3{#/blank#} (通过) the atmosphere and reaches the Earth. The Sun heats up the  {#blank#}4{#/blank#}  (Earth) surface. When the heat rises into the air, it is stopped by some special gases in the atmosphere like CO₂, the{#blank#}5{#/blank#}  (hot) returns to the Earth and keeps it{#blank#}6{#/blank#}  (warm) .

Power stations and cars release (释放) so {#blank#}7{#/blank#}  (much) greenhouse gases every day. So we can help stop global (全球的) warming by using less electric things such as{#blank#}8{#/blank#} (关掉) lights when we leave a room, or asking our parents to turn down the heating in our house{#blank#}9{#/blank#}  (save) energy. We can also stop global warming by finding other{#blank#}10{#/blank#}  (way) of transportation. For example, ride a bicycle or walk instead of going by car. Another way to help stop global warming is to plant and care for trees. Because trees take in CO₂, they are our best friends when fighting against global warming.

The Great Wall is known as the eighth wonder of the world. Every year thousands of tourists from all over the world come to visit this place of {#blank#}1{#/blank#} in China.
Last Saturday I went to theGreat Wall {#blank#}2{#/blank#} some of my friends. It was a sunny day. On our way up, we saw many volunteers(志愿者) keeping working in the sun. They helped the elders with their bags., {#blank#}3{#/blank#} photos for some tourists and answered people's questions. Though they are very{#blank#}4{#/blank#} , they didn't stop to have a rest. We were deeply moved when we saw this.

Just at the moment, we saw {#blank#}5{#/blank#} little boy standing alone and crying. We went over and asked what {#blank#}6{#/blank#} to him. From his answer we knew that he couldn't find his mother. We told him not to {#blank#}7{#/blank#} about it and then we tried to get to touch with his mother with the phone number he gave us. Twenty minutes {#blank#}8{#/blank#} , his mother turned up. When she saw her son, she was very excited and thanked {#blank#}9{#/blank#} with tears in her eyes.

That day we not only enjoyed the beauty of the Great Wall, but also felt the warmth of the society. {#blank#}10{#/blank#}  everyone can reach out a helping hand to others, the world will be more and more harmonious(和谐的).

In America, science is a very important class. In middle school we were {#blank#}1{#/blank#}  how to solve problems by thinking like a {#blank#}2{#/blank#} . We had to think of a question, guess an answer, and {#blank#}3{#/blank#}  a way to test our guess. There were lots of experiments and other activities. I remember studying how science can explain things like light and electricity.
Our English class is very different from {#blank#}4{#/blank#}  in China, more like Chinese class I think! We read lots of books and talked about them, {#blank#}5{#/blank#}  we could understand what we read better. We learned how to know what information is important when we read and what {#blank#}6{#/blank#}  so important. In my class we all gave six {#blank#}7{#/blank#}  to the class during the year. We had to talk in front of the class for six {#blank#}8{#/blank#} ten minutes!
We also have health classes. In this class, we learned about our bodies and how to take care of {#blank#}9{#/blank#}  by doing things like eating healthy foods, and not doing {#blank#}10{#/blank#}  things like smoking or drugs (毒品). We cooked a little bit, but I was not very good at it!

    Peter and Paul are brothers．The two boys are very{#blank#}1{#/blank#}．Peter is twelve years old．He's not tall with{#blank#}2{#/blank#}．He likes singing．His dream is to be a(n){#blank#}3{#/blank#}．Paul is fourteen years old．He is of medium {#blank#}4{#/blank#}．He usually wears school uniforms．He likes drawing．His dream is to be a(n){#blank#}5{#/blank#}．Peter and Paul work very hard．So I think their dreams will come true one day．

    A magician (魔术师) was working on a ship. The audience (观众) would be {#blank#}1{#/blank#} (difference) every week, {#blank#}2{#/blank#} the magician did the same tricks over and over again. There was only one problem: {#blank#}3{#/blank#} parrot saw the shows each week and began to {#blank#}4{#/blank#} (understand) how the magician did every trick. Once he understood, he started shouting, "Look, it's not the same hat", "Look, he is {#blank#}5{#/blank#} (put) the flowers under the table." The magician was {#blank#}6{#/blank#} (anger) but couldn't do anything. It was, after all, the captain's parrot. One day the ship had {#blank#}7{#/blank#} accident and sank. The magician found {#blank#}8{#/blank#} (he) on a piece of wood in the ocean {#blank#}9{#/blank#} the parrot. They stared at each other with hate, but did not say a word. This went on for some {#blank#}10{#/blank#} (day). After a week the parrot said, "OK, I give up. Where's the boat?"

    Summer holiday is{#blank#}1{#/blank#}(come). The kids have already{#blank#}2{#/blank#}(make) great plans for the summer. Some of them will travel abroad.{#blank#}3{#/blank#}example, Guo Yuan will spend his holiday far away from his parents. He will visit Australia {#blank#}4{#/blank#} some friends. Some kids will keep{#blank#}5{#/blank#}(study) hard during the summer holiday. They have to{#blank#}6{#/blank#}(go) to many after-school classes. Their{#blank#}7{#/blank#}(parent) think this is good for their future studies. But the students{#blank#}8{#/blank#}(them) don't like it. Some will stay at home and do{#blank#}9{#/blank#}same things as usual, like reading books and {#blank#}10{#/blank#}(watch) TV. What is your plan for the summer vacation?