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    New findings from Queen’s University biologists show that in the plant world, bigger isn’t necessarily better.
    “Until now most of the thinking has suggested that to be a good competitor in the forest, you have to be a big plant,” says Queen’s Biology professor Lonnie Aarssen. “But our research shows it’s virtually the other way around.”
    Previous studies showed that larger plant species monopolize(垄断) sunlight, water and other resources, limiting the number of smaller plant species that can exist around them. But the research has proved that this is not generally the case in natural vegetation.
    In the Queen’s project, PhD student Laura Keating targeted the largest “host plants” of 16 woody plant species growing in the Okanogan Valley, British Columbia. The research team calculated the number and variety of plants that neighbored each large host plant. They then randomly selected plots without host plants and calculated the plant species there as well. The research showed that the massive trees have no effect on the number of species with which they coexist.
    Smaller plants have many advantages over their overbearing neighbors, Professor Aarssen notes. Larger species generate physical space niches under their shelters where smaller species grow well. Smaller plants are much more effective than large trees at using available resources. They also produce seeds at a much younger age and higher rate than their bigger counterparts, and settle down much more quickly—thuscompeting with the newly-born plants of larger species.
    小题1: What’s the main idea of the text?
    A．Smaller plants may have many advantages over their neighbors.
    B．In the plant world, the bigger is better than the smaller one.
    C．To be a good competitor in the forest, you have to be a small plant.
    D．Queen’s University’s students made a new research.
    小题2: The underlined word “this” in Para. 3 refers to the view that _____.
    A．large and small plants can grow together in harmony
    B．larger plant species limit their smaller neighbors’ growth
    C．small plant species have their own advantages
    D．large and small plant species can never coexist
    小题3:What can we learn according to the text?
    A．Larger plant species limit the number of smaller ones around them.
    B．Smaller plants can limit the number of plant species around them.
    C．Smaller plants produce seeds at a higher rate than their bigger counterparts.
    D．Larger trees are more effective than small plants at using available resources.
    小题4:Which is the CORRECT order in the Queen’s project?
    a. Randomly selected plots without host plants and-calculated the plant species.
    b. Calculated the number and variety of plants that neighbored each large host plant.
    c. Selected the largest individuals or "host plants" of 16 woody plant species.
    A．a, b, cB．c, b, a
    C．b, c, aD．a, c, b

    小题1:A
    小题2:B
    小题3:C
    小题4:B

    小题1: A 主旨大意题。结合文章第一段及最后一段可知，本文主要是讲述科学家的新发现：低矮植物比高大植物更有优势。
    小题2: B 词义猜测题。this指代文中larger plant species monopolize sunlight, water and other resources, limiting the number of smaller plant species that can exist around them这一观点。
    小题3:C 细节理解题。由最后一段They also produce seeds at a much younger age and a higher rate than their bigger counterparts可知C项正确。
    小题4:B 事件排序题。由文章第四段可知选B。
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    C．to plant the Chinese flag onto the moon
    D．send a lovely jade rabbit onto the moon
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    A．13：00B．20：00
    C．22：00D．21：00

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    科目：高中英语 来源：不详 题型：完形填空

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    小题1:
    A．separated　　　　　　B．appeared
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    小题2:
    A．correctlyB．slowlyC．quickly　　D．directly
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    C．spaceD．atmosphere
    小题4:
    A．firedB．fell C．openedD．floated
    小题5:
    A．heavilyB．softly
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    小题6:
    A．A computer B．A rocket
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    小题7:
    A．spreadB．traveled C．shot D．moved
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    A．farB．long C．distantD．away
    小题9:
    A．shouted B．watched
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    小题10:
    A．makeB．take C．show D．search
    小题11:
    A．redB．brownC．gray D．black
    小题12:
    A．carefulB．closeC．real D．clear
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    A．surfaceB．treesC．rocksD．pictures
    小题20:
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    科目：高中英语 来源：不详 题型：阅读理解

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    B．there is a possibility of going from DNA to a face
    C．DNA could be used to produce a rough image of an offender’s face
    D．this technology is more reliable than computer-generated “e-fits”
    小题4:What is the most possible title of the passage?
    A．Creating a data bank of DNA
    B．Recognizing the DNA of criminals
    C．Predicting the location of offence using DNA
    D．Building image of offender’s face from DNA

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    科目：高中英语 来源：不详 题型：阅读理解

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    小题1:What is the article mainly about?
    A．Why plants are not afraid of the winter chill.
    B．The ways that plants survive cold weather.
    C．Changes in plants’ water transport system in winter.
    D．How plants evolve to keep up with climate change.
    小题2:According to the article, if a plant freezes in the winter, ______.
    A．it produces more living tissues to stay alive
    B．its leaves quickly fall out and its roots begin to die
    C．lots of air bubbles form in its water transport system
    D．its water transport system could be blocked in the spring
    小题3:How do oak trees usually survive the cold winters?
    A．By dropping their leaves before winter.
    B．By narrowing their water transport cells.
    C．By widening their water transport cells.
    D．By leaving only the seeds alive and growing from the seeds in the spring.
    小题4:What are scientists worried about when it comes to plants according to the article?
    A．Plants may not be able to adapt to the increasingly cold climate.
    B．Human activities might have a great impact on the pace of plants’ evolution.
    C．Plants may not be able to evolve fast enough to adapt to human-caused climate change.
    D．The strategies plants develop are not good enough to protect them against cold.

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    科目：高中英语 来源：不详 题型：阅读理解

    Vans, Keds, Dollies—they sound like the names of rock bands，but if you have teenagers, you'll know they’re actually the latest in teenage footwear.
    But experts are now warning that the current shoe fashions will be causing teenagers discomfort in the short term and storing up years of foot, knee and back pain in the future. Here, the experts identify the problems caused by teenagers’ shoe choice.
    KEDS/VANS

    Slip­on shoes with elastic (弹性的) sides are particularly popular among teenage boys—with Keds and Vans the most sought-after brands.
    The main problem is that they are just too flat—so flat that the heel, which strikes the ground first, also becomes damaged and painful.
    BALLET PUMPS

    The worst shoes of all are such light and thin dolly shoes. The problem is partly their flatness, as with Keds and Vans. However ballet pumps, which have no string or heel, have other specific problems.
    “As the shoe has no fastening device, it relies on the toes to keep the shoe on, causing an awkward gait (步法) , this leads to short—and long-term problems such as calluses (茧子), heel and knee pain.”
    WEDGES AND STILETTOS

    These shoes can also cause problems with gait. They may look good, but the heels on these are so high they can force the wearer’s body weight forward, making them very unstable.
    Teens who wear these shoes regularly are also in danger of joining those millions of women with constant back pain.
    SCHOOL SHOES
    So what do podiatrists (足科医生)have on their wish list, especially for everyday wear?
    Something in a natural, breathable fabric, with a string to hold it on，with a small heel and a deep toe­box that does not press the toes，such as Clark's，Marks & Spencer or Rhino.
    If your teen insists on wearing “bad” shoes, get them some simple foot orthotics(矫形器) in the shoes. These support and correct the movement of the foot and, properly fitted by a podiatrist, can often transform their walk and halt the damage.
    小题1:Of all the shoes mentioned in the passage, which can cause the worst problems?
    A．Ballet Pumps.B．Wedges & Stilettos.C．Keds and VansD．Marks & Spencer.
    小题2:The underlined word “halt” in the last paragraph probably means________.
    A．increaseB．stopC．worsenD．cure
    小题3:From this passage we can infer________.
    A．podiatrists are expert at producing branded shoes
    B．fashionable shoes all have orthotics in them
    C．experts are strongly against wearing popular shoes
    D．trendy shoes may ruin teenager’ health

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