【文章內(nèi)容簡(jiǎn)介】 e True North”, the cross Canada train. On the way to the statiion, he chatted about their trip. “You’re going to see some great scenery. Going eastward, you’ll pass mountains and thousands of lakes and forests, as well as wide rivers and large cities. Some people have the idea that you can cross Canda in less than fice days, but they fet the fact that Canada is 5500 kilometers from coast to coast. Here in Vancouver, you’re in Canada’s warmest part. People say it is Canada’s most beautiful city, surrounded by mountains and the Pacific Ocean. Skiing in the Rocky Mountains and sailing in the harbour make Vancouver one of Canada’s most popular cities to live in. Its population is increasing rapidly. The coast north of Vancouver has some of the oldest and most beautiful forests in the world. It is so wet there that the trees are extremely tall, some measuring over 90 metres.” That afternoon aboard the train, the cousins settled down in their seats. Earlier that day, when they crossed the Rocky Mountains, they managed to catch sight of some mountain goats and even a grizzly bear and an eagle. Their next stop was Calgary, which is famous for the Calgary Stampede. Cowboys from all over the world e to pete in the Stampede. Many of them have a gift for riding wild horses and can win thousands of dollars in prizes. After two days’ travel, the girls began to realize that Canada is quite empty. At school, they had learned that most Canadians live within a few hundred kilometres of the USA border, and Canada’s population is only slightly over thirty million, but now they were amazed to see such an empty country. They went through a wheatgrowing province and saw farms that covered thousands of acres. Afrer dinner, they were back in an urban area, the busy port city of Thunder Bay at the top of the Great Lakes. Because of the Great Lakes, they learned, Canada has more fresh water than any other country in the world. In fact, it has onethird of the world’s total fresh water, and much of it is in the Great Lakes. That night as they slept, the train rushed across the top of Lake Superior, through the great forests and southward towads Toronto. “The True North” from Toronto to Montreal The next morning the bushes and maple trees outside their window were red, gold and orange, and there was frost on the ground, confirming that fall had arrived in Canada. Around noon they arrived in Toronto, the biggest and most wealthy city in Canada. They were not leaving for Montreal until later, so they went on a tour of the city. They went up the tall CN Tower and looked across the lake. In the distance, they could see the Misty cloud that rose from the great Niagara Falls, which is on the south side of the lake. The water flows into the Niagara River and over the falls on its way to the sea. They saw the covered stadium, home of several famous basketball teams. As they walked north from the harbour area, Li Daiyu said, “Lin Fang, one of my mother’s old schoolmates, lives here. I should phone her from a telephone booth.” They met Lin Fei around dusk in downtown Chinatown, one of the three in Toronto. Over dinner at a restaurant called The Pink Pearl, the cousins chatted with Lin Fei, who had moved to Canada many years earlier. “We can get good Cantonese food here,” Lin Feitold them, “ because most of the Chinese people here e from South China, especially Hong Kong. It’s too bad you can’t go as far as Ottawa, Canada’s capital. It’s approximately four hundred kilometers northeast of Toronto, so it would take too long.” The train left late that night and arrived in Montreal山東菏澤玉皇化工有限公司6 萬(wàn)噸/年苯加氫制環(huán)己烷項(xiàng)目可行性研究報(bào)告常州化工設(shè)計(jì)院有限公司二零一零年四月a chance to make a trip into space with my friend Li Yanping, an astronomer. We visited the moon in our spaceship! Before we leave, Li Yanping explained to me that the forece of the gravity would change three times on our journey and that the first change would be the most powerful. Then we were off. As the rocket rose into the air, we were pushed back into our seats because we were trying to escape the pull of the earth’s gravity. It was so hard that we could not say anything to each other. Gradually the weight lessened and I was able to talk to him. “ Why is the spaceship not falling back to the earth? On the earth if I fall from a tree I will fall to ground.” I asked. “ We are too far from the earth now to feel its pull, “ he explained, “ so we feel as if there is no gravity at all. When we get closer to the moon, we shall feel its gravity pulling us, but it will not be as strong a pull as the earth’s. “ I cheered up immediately and floated weightlessly around in our spaceship cabin watching the earth bee smaller and the moon larger. When we got there, I wanted to explore immediately. “ Come on,” I said. “ If you are right, my mass will be less than on the earth because the moon is smaller and I will be able to move more freely. I might even grow taller if I stay here long enough. I shall certainly weigh less!” I laughed and climbed down the steps from the spaceship. But when I tried to step forward, I found I was carried twice as far as on the earth and fell over. “ Oh dear,” I cried, “ walking does need a bit of practice now that gravity has changed.” After a while I got the hang of it and we began to enjoy ourselves. Leaving the moon’s gravity was not as painful as leaving the earth’s. But returning to the earth was very frightening. We watched, amazed as fire broke out on the outside of the spaceship as the earth’s gravity increased. Again we were pushed back hard into our seats as we came back to land. “ That was very exhausting but very exciting too,” I said. “Now I know much more about gravity! Do you think we could bisit some stars next time?” “Of course,” he smiled, “ which star would you like to go to?” Caught by a black hole The spaceship warned Li Yanping and me to be ready as we were approaching the “black hole”. We could see some faint lights around what look