One evening I was resting in a cafe.I wore a pair of newly bought white leather shoes,  {#blank#}1{#/blank#}  were rather expensive.Then a boy came to me.

     He was in {#blank#}2{#/blank#} old and not fit shirt, looking pale and about eleven.No sooner had I begun to speak than he opened the box in his hand and took out the tools of shoe­polishing.He was busy doing his work{#blank#}3{#/blank#}  heavy rain began to pour down.People rushed to the cafe for {#blank#}4{#/blank#}  (protect) from the rain.More and more people crowded in and gradually separated the boy {#blank#}5{#/blank#}  me.

     Hours passed，and it turned dark.I had no shoes on my feet and wondered where the boy had been.I thought I would have to go home on my bare feet. When it was near midnight, the cafe was to be closed.I had to move to the door，just as I went to the gate，I {#blank#}6{#/blank#} (surprise) found that a boy of about eleven, {#blank#}7{#/blank#}  (look) very familiar，was sleeping at the door with his head leaning  {#blank#}8{#/blank#}  a box.I shook him slightly and woke him{#blank#}9{#/blank#}  .He opened the package hurriedly, gave me my leather shoes, and apologized to me shyly.I paid him and wrapped him with his {#blank#}10{#/blank#}  (fit) shirt.On my way home, the image of the boy stayed in my mind.

    For several billion years after the "Big Bang", the earth was still just a cloud of dust. What it was to {#blank#}1{#/blank#} was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe. The earth became so {#blank#}2{#/blank#} that it was not clear whether the shape would last or not.

     {#blank#}3{#/blank#} eastward, you'll pass mountains and thousands of lakes and forests, as well as wide rivers and large cities. Some people have the idea {#blank#}4{#/blank#} you can cross Canada in less than five days, but they forget 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. {#blank#}5{#/blank#} by mountains and the Pacific Ocean. Its population is increasing rapidly. The coast {#blank#}6{#/blank#} of Vancouver has some of the oldest and most beautiful forests in the world.

    However, this was not easy. When they first arrived in Gombe in 1960, it was unusual for a woman to live in the froest. {#blank#}7{#/blank#} after her mother came to help her for the first few months {#blank#}8{#/blank#} she allowed to begin her project. Her work changed the way people think about chimps. For example, one important thing she discovered was that chimps hunt and eat meat. Until then everyone {#blank#}9{#/blank#} thought chimps ate only fruit and nuts. She also discovered how chimps communicate with each other, and her study of their body language helped her {#blank#}10{#/blank#} their social system.

    In order to know a foreign language {#blank#}1{#/blank#}(complete), four things are necessary. Firstly, we must understand the language when we hear {#blank#}2{#/blank#} spoken. Secondly, we must be able to speak it correctly with confidence and without hesitation. Thirdly, we must be able to read the language, and fourthly, we must be able to write it. We must be able to make sentences that are grammatically correct.

    There is no easy way to succeed {#blank#}3{#/blank#} language learning. {#blank#}4{#/blank#} good memory is of great help, but it is not enough only {#blank#}5{#/blank#}(memorize) rules from a grammar book. It is not much use learning by heart long list of words and {#blank#}6{#/blank#}(they) meaning, studying the dictionary and so on. We must learn by using the language. {#blank#}7{#/blank#}we are satisfied with only a few rules we {#blank#}8{#/blank#}(memorize), we are not really learning the language. “Learn through use” is a good piece of advice for those {#blank#}9{#/blank#}are studying a new language. Practice is important. We must practise speaking and {#blank#}10{#/blank#}(write) the language whenever we can.

    Senior citizens are the first to come to our mind when you think of hearing loss, but in a recent report, hearing professionals worry teenagers will soon outnumber aging adults {#blank#}1{#/blank#} it comes to living with hearing loss.

    The rise in popularity of personal audio devices from iPods to smart phones has had dangerous effect on the ears of those who use them most, teenagers! A research {#blank#}2{#/blank#} (conduct) by the World Health Organization finds that nearly 50% of teens {#blank#}3{#/blank#} (fall) into the habit of exposing themselves to unsafe levels of sound so far.

    A sound is considered unsafe when it goes beyond 85 decibels (分贝). At that level, it takes just 8 hours of listening over your lifetime to cause damage. The louder the sound is, the {#blank#}4{#/blank#} (little) time it takes to cause damage. Because hearing loss is {#blank#}5{#/blank#} (typical) considered a health problem for the elderly, it is difficult to convince already stubborn teenagers that they really are doing damage {#blank#}6{#/blank#} their ears.

    Young adults {#blank#}7{#/blank#} have been exposed to loud noise over a period of time may have some hearing loss symptoms. Their {#blank#}8{#/blank#} (able) to learn is compromised, and they may have difficulty developing social skills.

    In an effort to help teens better protect their hearing, we suggest {#blank#}9{#/blank#} (set) volume limits on personal audio devices. {#blank#}10{#/blank#} is also good to limit the amount of time exposed to noise and to take listening breaks to give the ears a rest.

    Golden Gate Park is in San Francisco, California. It is one of the largest urban {#blank#}1{#/blank#}(park) in the United States. Over one million colorful flowers, trees and other plants grow in the park. But originally most of the park{#blank#}2{#/blank#}(cover) in sand. After a lot of work, it was finally built in 1870. Today, there are many people{#blank#}3{#/blank#}(visit) the park every day. They play basketball, soccer, golf and many other sports there. The park is closed in many places to traffic so people can walk, cycle, or skate{#blank#}4{#/blank#}(free).

    Have you ever wondered{#blank#}1{#/blank#}children always seem to have bags of energy and never run out of steam? Researchers have discovered that children have the levels of recovery of endurance athletes. In fact, scientists say children's muscles recover from "high-intensity exercise" a lot{#blank#}2{#/blank#}(quick) than athletes. A study looked at the performance levels of children when they were cycling, and compared their fitness to {#blank#}3{#/blank#}of athletes. Researcher Dr Sebastien Ratel suggested they {#blank#}4{#/blank#} (find) the children used more of their aerobic metabolism and were therefore less tired during the high-intensity physical activities. The children also recovered very quickly-even faster than the well-trained adult endurance athletes.

    The researchers hope that{#blank#}5{#/blank#}(they) findings will help scientists have a better{#blank#}6{#/blank#}(understand) how the human body changes with age. It could lead to advances in the fight {#blank#}7{#/blank#} diabetes and other diseases. Dr Ratel said the research was{#blank#}8{#/blank#}(particular) important as more children were become less active. He warned: "With the diseases related to physical inactivity{#blank#}9{#/blank#}(rise), know the changes with growth that might contribute to the risk of disease. "{#blank#}10{#/blank#}is helpful for children to maintain their fitness as they grow up and play as much as they could so they remain healthy as adults.