1)说明学习习惯与学习效果之间的关系；

2)介绍一种好的学习习惯并提出养成该习惯的建议；

3)描述自己在学习习惯方面存在的某个问题并给出改进措施。

注意：

1)词数120左右，开头语已为你写好；

2)可以适当增加细节，以使行文连贯；

3)文中不得透露个人姓名和学校名称。

It's useful and necessary to discuss learning habits. .    

    Papa, as a son of a dirt-poor farmer, left school early and went to work in a factory, for education was for the rich then. So, the world became his school. With great interest, he read everything he could lay his hands on, listened to the town elders and learned about the world beyond his tiny hometown. "There's so much to learn," he'd say. "Though we're born stupid, only the stupid remain that way. " He was determined that none of his children would be denied an education.

    Thus, Papa insisted that we learn at least one new thing each day. Though, as children, we thought this was crazy, it would never have occurred to us to deny Papa a request. And dinner time seemed perfect for sharing what we had learned. We would talk about the news of the day; no matter how insignificant, it was never taken lightly. Papa would listen carefully and was ready with some comment, always to the point.

    Then came the moment—the time to share the day's new learning.

    Papa, at the head of the table, would push back his chair and pour a glass of red wine, ready to listen.

    "Felice," he'd say, "tell me what you learned today. "

    "I learned that the population of Nepal is .... "

    Silence.

    Papa was thinking about what was said, as if the salvation of the world would depend upon it. "The population of Nepal. Hmm. Well . . . . " he'd say. "Get the map; let's see where Nepal is. " And the whole family went on a search for Nepal.

    This same experience was repeated until each family member had a turn. Dinner ended only after we had a clear understanding of at least half a dozen such facts.

    As children, we thought very little about these educational wonders. Our family, however, was growing together, sharing experiences and participating in one another's education. And by looking at us, listening to us, respecting our input, affirming our value, giving us a sense of dignity, Papa was unquestionably our most influential teacher.

    Later during my training as a future teacher /1 studied with some of the most famous educators. They were imparting what Papa had known all along—the value of continual learning. His technique has served me well all my life. Not a single day has been wasted, though I can never tell when knowing the population of Nepal might prove useful.

    Color is fundamental in home design-something you'll always have in every room. A grasp of how to manage color in your spaces is one of the first steps to creating rooms you'll love to live in. Do you want a room that's full of life? Or are you just looking for a place to relax after a long day?{#blank#}1{#/blank#}, color is the key to making a room feel the way you want it to feel.

    Over the years, there have been a number of different techniques to help designers approach this important point.{#blank#}2{#/blank#}, they can get a little complex. But good news is that there're really only three kinds of decisions you need to make about color in your home: the small ones, the medium ones, and the large ones.

    {#blank#}3{#/blank#}.They're the little spots of color like throw pillows, mirrors and baskets that most of us use to add visual interest to our rooms. Less tiring than painting your walls and less expensive than buying a colorful sofa, small color choices bring with them the significant benefit of being easily changeable.

    Medium color choices are generally furniture pieces such as sofas, dinner tables or bookshelves.{#blank#}4{#/blank#}.They require a bigger commitment than smaller ones, and they have a more powerful effect on the feeling of a space.

    The large color decision in your rooms concern the walls, ceilings, and floors. Whether you're looking at wallpaper or paint, the time, effort and relative expense put into it are significant.{#blank#}5{#/blank#}.

A. While all of them are useful

B. Whatever you're looking for

C. If you're experimenting with a color

D. Small color choices are the ones we're most familiar with

E. It's not really a good idea to use too many small color pieces

F. So it pays to be sure, because you want to get it right the first time

G. Color choices in this range are a step up from the small ones in two major ways

    How does an ecosystem（生态系统）work? What makes the populations of different species the way they are? Why are there so many flies and so few wolves? To find an answer, scientists have built mathematical models of food webs, noting who eats whom and how much each one eats.

    With such models, scientists have found out some key principles operating in food webs. Most food webs, for instance, consist of many weak links rather than a few strong ones. When a predator（掠食动物）always eats huge numbers of a single prey（猎物）, the two species are strongly linked; when a predator lives on various species, they are weakly linked. Food webs may be dominated by many weak links because that arrangement is more stable over the long term. If a predator can eat several species, it can survive the extinction（灭绝）of one of them. And if a predator can move on to another species that is easier to find when a prey species becomes rare, the switch allows the original prey to recover. The weak links may thus keep species from driving one another to extinction.

Mathematical models have also revealed that food webs may be unstable, where small changes of top predators can lead to big effects throughout entire ecosystems. In the 1960s, scientists proposed that predators at the top of a food web had a surprising amount of control over the size of populations of other species—including species they did not directly attack.

    And unplanned human activities have proved the idea of top-down control by top predators to be true. In the ocean, we fished for top predators such as cod on an industrial scale, while on land, we killed off large predators such as wolves. These actions have greatly affected the ecological balance.

    Scientists have built an early-warning system based on mathematical models. Ideally, the system would tell us when to adapt human activities that are pushing an ecosystem toward a breakdown or would even allow us to pull an ecosystem back from the borderline. Prevention is key, scientists says because once ecosystems pass their tipping point（临界点）, it is remarkably difficult for them to return.