45. B细节理解题 四个选项的意思分别是A孩子在阅读的时候不能够区别好的部分以及不好的部分；B应该留给学生孩子自己去选择，读什么以及如何读；C在学校阅读永远不会是一个愉快和启发性的体验；D阅读需要理解每一部分的信息。其实根据常识可以判断C和D是错误的，然后再结合全文大意，作者认为孩子不应该是强迫去读，要让他们自己读，选择材料读。
考点： 这是一篇记叙文。
B
Graph can be a very useful tool for conveying information especially numbers， percentages, and other data . A graph gives the reader a picture to interpret. That can be a lot more pages and pages and pages explaining the data .
Graphs can seem frightening, but reading a graph is a lot like reading a story. The graph has a title ,a main idea ,and supporting details .You can use your active reading skills to analyze and understand graphs just like any other text .
Most graphs have a few basic parts: a caption or introduction paragraph, a title , a legend or key, and labeled axes. An active reader looks at each part of the graph before trying to interpret the data. Captions will usually tell you where the data came from (for example, a scientific study of 400 African elephants from 1980 to 2005). Captions usually summarize the author's main point as well. The title is very important. It tells you the main idea of the graph by stating what kind of information is being shown. A legend, also called a key ,is a guide to the symbols and colors used in the graph. Many graphs, including bar graphs and line graphs, have two axes that form a corner, Usually these axes are the left side and the bottom of the graph .Each axis will always have a label. The label tells you what each axis measures. Bar Graphs
A bar graph has two axes and uses bars to show amounts. In Graph 1 ,we see that the x-axis shows grades
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that students earned, and the y-axis shows bow many students earned each grade .You can see that 6 students earned an A because the bar for A stretches up to 6 on the vertical measurement. There is a lot of information we can get from a simple graph like this(See Graph 1). Line Graphs
A line graph looks similar to a bar graph ,but instead of
Bars, it plots points and connects them with a line .It has the same parts as a bar graph – two labeled axes –and can be read the same way .To read a line graph, it‘s important to focus on the points of intersection rather than the line
segments between the points, This type of graph is most commonly used to show how something changes over time.
Here is a graph that charts how far a bird flies during the first Five days of its spring migration (See Graph 2).
The unit of measurement for the x-axis is days. The unit of measurement for the y-axis is kilometers. Thus we can see that ,on the first day, the pipit flew 20 kilometers. The line segment goes up between Day 1 and Day 2,which means that the bird flew farther on Day 2.If the line segment angled dawn, as between Day 4 and Day 5,it would mean that the bird flew fewer kilometers than the day before. This line graph is a quick, visual way to tell the reader about the bird‘s migration.
Pie Graphs
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A typical pie graph looks like a circular pie. The circle is divided into sections, and each section represents a fraction of the data. The graph is commonly used to show percentages; the whole pie represents l00 percent, so each piece is a fraction of the whole.
A pie graph might include a legend，or it might use icons or labels within each slice. This pie graph shows on month‘s expense, (See Graph 3 ). Food $ 25 Movies $ 12 Clothing $ 36 Savings $ 20 Books $ 7
46. When used in a graph，a legend is_____
A. a guide to the symbols and colors C. the main idea
B. an introduction paragraph D. the data
47. What is the total number of students who earned a C or better ?
A .4.
B.6.
C.10.
D.20 .
48. The bird covered the longest distance on _____
A. Day 1
B. Day 2
C. Day 3
D. Day 4
49. Which of the following cost Amy most ?
A. Food. 【答案】 46.A 47.D 48.C 49.D
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B. Books C. Movies D. Clothing.
考点：说明文
C
If humans were truly at home under the light of the moon and stars，we would go in darkness happily，the midnight world as visible to us as it is to the vast number of nocturnal(夜间活动的) species on this planet. Instead，we are diurnal creatures, with eyes adapted to living in the sun‘s light. This is a basic evolutionary fact, even though most of us don‘t think of ourselves as diurnal beings. Yet it‘s the only way to explain what we‘ve done to the night: We‘ve engineered it to receive us by filling it with light.
The benefits of this kind of engineering come with consequences 一 called light pollution 一 whose effects scientists are only now beginning to study. Light pollution is largely the result of bad lighting design，which allows artificial light to shine outward and upward into the sky. III-designed lighting washes out the darkness of night and completely changes the light levels 一 and light rhythms — to which many forms of life, including, ourselves, have adapted. Wherever human light spills into the natural world, some aspect or life is affected .
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In most cities the sky looks as though it has been emptied of stars, leaving behind a vacant haze(霾) that mirrors our fear of the dark. We‘ve grown so used to this orange haze that the original glory of an unlit nigh, - dark enough for the planet Venus to throw shadow on Earth, is wholly beyond our experience, beyond memory almost.
We‘ve lit up the night as if it were an unoccupied country, when nothing could be further form the truth. Among mammals alone, the number of nocturnal species is astonishing, Light is a powerful biological force, and on many species it acts as a magnet(磁铁). The effect is so powerful that scientists speak of songbirds and seabirds being ―captured‖ by searchlights on land or by the light from gas flares on marine oil platforms. Migrating at night, birds tend to collide with brightly lit tall buildings.
Frogs living near brightly lit highways suffer nocturnal light levels that are as much as a million times righter than normal, throwing nearly every aspect of their behavior out of joint including most other creatures ,we do need darkness .Darkness is as essential to our biological welfare, to our internal clockwork, as light itself.
Living in a glare of our making,we have cut ourselves off from our evolutionary and cultural heritage—the light of the stars and the rhythms of day and night .In a very real sense light pollution causes us to lose sight of our true place in the universe, to forget the scale of our being, which is best measured against the dimensions of a deep night with the Milky Way—the edge of our galaxy arching overhead.
50. According to the passage, human being . A. prefer to live in the darkness B. are used to living in the day light C. were curious about the midnight world D. had to stay at home with the light of the moon 51. What does ―it‖(Paragraph 1) most probably refer to?
A. The night.
B. The moon
C. The sky
D. The planet
52. The writer mentions birds and frogs to . A. provide examples of animal protection B. show how light pollution affects animals
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