Starting in 1972, the National Park Service established a policy for forest fires called Natural Bum. It was true {#blank#}1{#/blank#} some forest fires, such as those which were caused by lightning were necessary for forests{#blank#}2{#/blank#} (keep) balanced ecosystems, so the fire should be allowed to burn{#blank#}3{#/blank#} , a big fire in Yellowstone National Park in 1988 caused this policy to be abandoned (放弃) since the fire was initially allowed to burn yet soon out of control. As a result, the fire of 1988 destroyed much of Yellowstone, which is America's {#blank#}4{#/blank#}(old) and most beloved national park. Massive areas of plants were destroyed, and large empty spaces and acres of burned and blackened trees greeted {#blank#}5{#/blank#} (visit). The rivers and streams were choked with ash, and the ecosystem of the park was changed {#blank#}6{#/blank#} repair.

    In addition, great numbers of animals{#blank#}7{#/blank#} (kill) by the fires that burned out of control. The fires were driven by high winds{#blank#}8{#/blank#} (move) as many as ten miles a day. Many small animals died in the flames. The fires' rapid advances {#blank#}9{#/blank#} (give) the wildlife little chance to escape. Even today, few of these small forest animals have returned to live in the park. In the years immediately following the fires, the numbers of visitors declined{#blank#}10{#/blank#} (rapid).

    It seems that Chinese people have always loved to discuss {#blank#}1{#/blank#} differences between northerners and southerners. Now, another difference has drawn wide attention: the way northerners and southerners shop for food at markets.

    People from southern China normally buy {#blank#}2{#/blank#}they need for just one or two meals at a time. It's normal for them to buy just half a Chinese cabbage, two {#blank#}3{#/blank#}（potato）and 25 grams of beef at a time, {#blank#}4{#/blank#}， a person may be laughed at if they do this in the north. Instead, buying enough vegetables and meat for a week {#blank#}5{#/blank#}（be）normal.

    The difference could be because {#blank#}6{#/blank#}the different climates. Food can {#blank#}7{#/blank#}（keep）for a long time in the north, as it's {#blank#}8{#/blank#}（usual）cold and dry there. Many northerners have the habit of {#blank#}9{#/blank#}（store）food for a long time. But due to the hot and wet weather in the south, southern Chinese people prefer {#blank#}10{#/blank#}（buy）just enough food for one meal or one day. Otherwise, the food may go bad.

    Maybe these debates about different customs help us to understand each other better.

    Red is a particularly popular color in China. A pair of red shoes — {#blank#}1{#/blank#}they are for sports, dances or just fashion — is a must-have for every Chinese woman's shoe collection. For most Chinese brides, red shoes should also be worn {#blank#}2{#/blank#} their big day.

    As women's feet {#blank#}3{#/blank#} (connect) with female attraction, red shoes often emphasize this aspect {#blank#}4{#/blank#} convey a special beauty. In some classic Chinese novels, there are{#blank#}5{#/blank#} (describe) of charming women in red silk shoes.

    If you wear a dark dress in cold {#blank#}6{#/blank#} (season), a pair of red shoes can raise your ensemble（整套服装）to a {#blank#}7{#/blank#} (high) level. They can also go with different levels of red color,  {#blank#}8{#/blank#} (give) the wearer a lively and joyful look.

    {#blank#}9{#/blank#} (sure) red will always be a beloved color for designers, and red shoes have also become a choice for many supermodels. If you are also a fan of this {#blank#}10{#/blank#} (energy) color, consider wearing a pair of red shoes for every Chinese Lunar New Year!

    Keeping a diary in English is one of the effective ways{#blank#}1{#/blank#} (improve) our English writing ability. Compared with other forms of writing, it is{#blank#}2{#/blank#} (short) and takes less time. It can help us to develop the habit of thinking in English. {#blank#}3{#/blank#} we keep practicing, gradually we'll learn how to express{#blank#}4{#/blank#} (us) our-selves in English. In keeping a diary in English, we certainly run up against many {#blank#}5{#/blank#} (difficult). In the first place, it often happens that we have trouble {#blank#}6{#/blank#} (find) proper words and phrases to give expressing to our mind. Secondly, there are many idiomatic ways of saying things in Chinese. And it is{#blank#}7{#/blank#} (extreme) hard for us to put them into English properly.

    As far as I {#blank#}8{#/blank#} (concern), my suggestion is that we should always have a notebook and a Chinese-English dictionary within easy reach. We can also turn to our English teacher {#blank#}9{#/blank#} help, if necessary. In short, I believe that it is of great use to keep a diary in English for {#blank#}10{#/blank#} development of our writing skills.

    For many young people, going to university is one of the most important {#blank#}1{#/blank#} (stage) of their lives. It is the time when young people will move out of {#blank#}2{#/blank#} (they) home to live with other people, often strangers. {#blank#}3{#/blank#} (especial) in the U.S, people often travel very far {#blank#}4{#/blank#}home to study. It is a time to be {#blank#}5{#/blank#} (independence).

    At university, you will {#blank#}6{#/blank#} (teach) by lectures and professors who are leading figures in their study. The opportunity to learn from and to discuss with them is {#blank#}7{#/blank#} drives some people to apply to university. Students are required to choose a major that they wish to study. Apart from the {#blank#}8{#/blank#} (academy) benefit, life at university also can allow students {#blank#}9{#/blank#}(develop) their interests in many fields.

    Therefore， university is a place {#blank#}10{#/blank#} you attain knowledge, develop your values and accept those who may be different.