完形填空: 阅读下面短文, 理解大意, 然后从各小题的四个选项中选出一个最佳答案, 使短文连贯完整. My son Joey was born with club feet. The doctors said that with treatment he would be able to walk, but would never run very well. The first three years of his life was __1__ in hospital. By the time he was eight, you wouldn't know he had a problem when you saw him __2__. Children in our neighborhood always ran around __3__ their play, and Joey would jump and run and play, __4__. We never told him that he probably wouldn't be __5__ to run like the other children. So he didn't know. In __6__ grade he decided to join the school running team. Every day he trained. He ran more than any of the others, __7__ only the top seven runners would be chosen to run for the __8__. We didn't tell him he probably would never make the team, so he didn't know. He ran four to five miles every day－even when he had a fever. I was __9__, so I went to __10__ him after school. I found him running __11__. I asked him how he felt. "Okay,"he said. He had two more miles to go. Yet he looked straight ahead and kept __12__. Two weeks later, the names of the team __13__ were called. Joey was number six on the list. Joey had __14__ the team. He was in seventh grade梩he other six team members were all eighth--graders. We never told him he couldn't do it. . . so he didn't know. He just __15__ it.

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阅读理解。

　　Rivers are one of our most important natural resources．Many of the world's great cities are located on rivers, and almost every country has at least one river flowing through it that plays an important part in the lives of its people．

　　Since the beginning of history, people have used rivers for transportation．The longest one in the United States is the Mississippi．The lifeline of Egypt is Nile．To the people of India, the Ganges is great, but it is also important for transportation：ships can travel along it for a thousand miles．Other great rivers are the Congo in Africa and the Mekong in Southeast Asia．The greatest of all for navigation(航海)，however, is the Amazon in Brazil(巴西)．It is so wide and so deep that large ships can go about two thousand miles upon it．

　　Besides transportation, rivers give food to eat, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks．In order to increase the supply of water for crops, engineers sometimes build a dam(大坝)across a river and let a lake form behind the dam．Then people can use the water not only to irrigate(灌溉)their fields but also to make electricity for their homes and industries．However, large cities and industries that are located upon rivers often make problems．As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials．People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits of this natural resource．

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根据短文内容选择最佳答案。

　　Rivers are one of our most important natural resources(自然资源)．Many of the world's great cities are located on rivers, and almost every country has at least one river flowing through it．Rivers play an important part in the lives of its people．

　　Since the beginning of history, people have used rivers for transportation．The longest one in the United States is the Mississippi．The lifeline of Egypt is the Nile．To the people of India, the Ganges(恒河)is great, but it is also important for transportation; ship can travel along it for a thousand miles．Other great rivers are the Congo(刚果河)in Africa and the Mekong(湄公河)in southeast Asia．The greatest of all for navigation(航海), however, is the Amazon(亚马逊河)in Brazil．It is so wide and so deep that large ships can go about two thousand miles upon it．

　　Besides transportation, rivers give food to eat, water to drink, water for crops, and chances for fun and recreation for the people who live along their banks．In order to increase the supply of water for crops, engineers sometimes build a dam(大坝)across a river and let a lake form behind the dam．The people can use the water not only to irrigate(灌溉)their fields but also make electricity for their homes and industries．

　　However, large cities and industries that are located upon rivers often make problems．As the cities grow in size and industries increase in number, the water in the rivers becomes polluted with chemicals and other materials．People are learning the importance, however, of doing more to keep their rivers clean if they want to enjoy the benefits of this natural resource．

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完形填空

　　My son Joey was born with club feet．The doctors said that with treatment he would be able to walk, but would never run very well．The first three years of his life was spent in hospital．By the time he was eight, you wouldn't know he has a problem when you saw him 　　1　　．

　　Children in our neighborhood always ran around 　　2　　 their play, and Joey would jump and ran and play, too．We never told him that he probably wouldn't be 　　3　　 to run like the other children．So he didn't know．

　　In seventh grade he decided to 　　4　　 the school running team．Every day he trained．He ran more than any of the others, 　　5　　 only the top seven runners would be chosen to run for the 　　6　　．We didn't tell him he probably would never make the team, so he didn't know．

　　He ran four to five miles every day－even when he had a fever．I was 　　7　　, so I went to 　　8　　 him after school．I found him running 　　9　　．I asked him how he felt．“Okay,”he said．He has two more miles to go．Yet he looked straight ahead and kept walking．

　　Two weeks later, the names of the team 　　10　　 were listed．Joey was number six on the list．Joey had made the team．He was in seventh grade－the other six team members were all eighth graders．We never told him he couldn't do it…so he didn't know．He just took it．

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