阅读理解

　　Probably you have seen photographs of the Grand Canyon (大峡谷)，the great valley in the desert country of Arizona (亚利桑那州)．But you must go there yourself to feel its true size and beauty．The Grand Canyon is one of the greatest natural wonders of the world．

　　The Colorado River formed the Grand Canyon over millions of years．Slowly，the river cut down through hard rocks．At the same time，the land was rising．Today，the canyon is one and a half kilometers deep and 445 kilometers long．The oldest rocks at the bottom of the canyon are more than one billion years old．The width varies (变化) from about 200 meters to 29 kilometers across．The rim or top of the canyon is about 2 300 meters above sea level on the South Rim，and about 3 000 meters on the other side，the North Rim．As a result，there are different kinds of plants and animals on opposite sides of the canyon．The South Rim is a dry desert country．The North Rim has tall forest．

　　The canyon looks different at different times of day，and in different seasons and weather．At sunrise and sunset，the red，gold，brown and orange colors of the rocks are especially clear and bright．In winter，the canyon is partly covered with snow．

　　The view from the South Rim of the Grand Canyon is the best．Most visitors come to the South Rim and stay in campgrounds or hotels．Every point along the canyon's edge offers a different view．

　　The North Rim of the canyon is quieter．It takes all day to drive there from the South Rim because there is only one bridge across the Colorado River．On the way，you go through Navaho Indian land,and a colorful pink desert called“The Painted Desert”．

　　You can walk down into the Grand Canyon,or you can take a boat trip down the Colorado River， and camp on the beaches at night．But whether you see the Grand Canyon from the top or the bottom，or from the North Rim or South Rim，it will be an experience that you will never forget．

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　　I am sitting in an empty football field after my last high school football game that finished a few hours ago．I'm the mid-field player in my team．But in fact that's not 　　1　　 now．I was the mid-field player because,as I said,this was my 　　2　　 game．That's a good way to end a high school football career(生涯),especially if you win,but even though you don't,it's 　　3　　 to leave at a high point．

　　I was eight when I first started playing football．My dad 　　4　　 football,and he used to practise with me at home-passing,catching and running．We used to practise almost every evening 　　5　　 it got too dark．He tried to teach me everything he knew about the 　　6　　．“Just remember：don't ever 　　7　　．”

　　“Stay in the game．Don't lose your concentration(专注)．”

　　“Go out there and give 110 percent(百分之……)every time．”Well,that was a long time ago,but I still hear his words 　　8　　 in my ears．

　　I had a lot on my mind 　　9　　 the game today．I don't like things to end,I guess,and this was the last game．I was talking to myself and warning myself about what to do and not to do．I didn't sleep at all 　　10　　,and when the sun came up this morning,I reached the point where 　　11　　 just wanted it all to be over,finished,done．But then when the game started,my mind became 　　12　　．I just lived in this game,this moment．I didn't hear the crowd;I didn't feel the cold or the pain;I never felt tired．I just kept my eyes on the 　　13　　,and it was just me and the ball and,inside,a soft,white light 　　14　　 me the way to the goal．It was a beautiful,empty feeling．

　　It's all over now,and it's really getting cold here．It's starting to snow．The sun's almost gone,and I can 　　15　　 see the goal．Now it's dark and I'm sitting here all alone．Well,I guess it's time to say good-bye and move on．

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