2020浙江杭州师范大学综合英语考研真题英语二级试题
I. Cloze（每小题1分，共50分）
Fill in each of the blanks with a function word, otherwi the first letter is given as a clue.
Passage One: Instinct or cleverness?
knowing>a beautiful mindbalanceWe have been brought up to fear incts. We regard them as unnecessary creatures that do more harm than good. We continually wage war (1) ______ them, for they contaminate our food, carry dias, or devour our crops. They sting or bite without provocation; they fly uninvited into our rooms on summer nights, or beat against our lighted windows. We live in dread not only of unpleasant incts like spiders or wasps, but of quite harmless ones like moths. Reading about them increas our understanding without dispelling our fears. Knowing that the industrious ant lives in a highly organized society does nothing to prevent us (2) ______ being filled with revulsion when we find hordes of them crawling over a carefully prepared picnic lunch. No matter how much we like honey, or how much we have read about the uncanny n of direction which bees posss, we have a horror of being (3) s______. Most of our fears are unreasonable, but they are impossible to era. At the same time, however, incts are strangely fascinating. We enjoy
reading about them, especially when we find that, like the praying mantis, they lead perfectly horrible lives. We enjoy staring (4) ______ them, entranced as they go about their business, unaware (we hope) (5) ______ our prence. Who has not stood in awe (6) ______ the sight of a spider pouncing (7) ______ a fly, or a column of ants triumphantly bearing home an enormous dead beetle?
Last summer I spent days in the garden watching thousands of ants crawling up the trunk of my prize peach tree. The tree has grown against a warm wall on a sheltered side of the hou.ryanair
I am especially proud (8) ______ it, not only becau it has survived veral vere winters, but becau it occasionally produces luscious peaches. During the summer, I noticed that the leaves of the tree were beginning to wither. Clusters of tiny incts called aphides were to be found on the underside of the leaves. They were visited by a large colony of ants which obtained a sort of honey (9) ______ them. I immediately embarked on an experiment which, even though it failed to get rid of the ants, kept me fascinated (10) ______ twenty-four hours. I bound the ba of the tree with sticky tape, making (11) ______ impossible for the ants to reach the aphides. The tape was so sticky (12) ______ they did not dare to cross it. For a long
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time, I watched them scurrying around the ba of the tree (13) ______ bewilderment. I even went o
英语人才网ut at midnight with a torch and noted (14) ______ satisfaction (and surpri) that the ants were still swarming around the sticky tape (15) ______ being able to do anything about it. I got up early next morning hoping to find (16) ______ the ants had given up in despair. Instead, I saw that they had discovered a new (17) r______. They were climbing (18) ______ the wall of the hou and then on to the leaves of the tree. I realized sadly that I had been completely (19) d______ by their ingenuity. The ants had been quick to find an (20) a______ to my thoroughly unscientific methods! Passage Two: Cosmic Dust
We know the univer doesn’t revolve around us. But parts of it do, like houhold dust. This continuously reproducing filth is comprid (1) _____ skin cells, hair, clothing fibres, dirt from outside, dust mites, bacteria and chemicals that can stick (2) _____ any of the items.
As a child, one of my weekly chores was dusting the hou. If you had told 12-year-old me that, at 37, I would find dusting one of the most comforting things I do at home, I would have been very concerned about exactly how awful adulthood is. But perhaps I might have worried less if I had also been told (3)
_____ with adulthood would come knowledge of cosmic dust, which is all over the univer and absolutely does not revolve around us.
bye for now
Space dust is part of a fascinating life cycle of structure formation in the univer: the emergence of stars and planets, as well as their deaths. In the very early univer, gravity caud hydrogen and helium gas to collap into objects that often became denly packed enough ignite nuclear hydrogen burning which leads (4) _____ star formation. The nuclear chain reactions that occur in stars produce elements heavier (5) _____ hydrogen and helium, like carbon, nitrogen and oxygen. Even heavier elements, like neon and titanium, are made in the supernova explosions that can occur at the end (6) _____ a star’s life.
The explosions blow stardust made of the elements – most commonly silicon and carbon – out into the univer. Some of it leads to solar system formation, producing the extrasolar planets we are increasingly capable of obrving. In the ca (7) _____ our local star, the sun, that solar system sprouted life on the third-innermost planet, Earth.
Some of the dust helps form the next-generation stars that burn a little differently than their forebears becau some of the
elements they contain are heavier.
One thing cosmic dust does have in common (8) _____ houhold dust is that it can be annoying. A
幽灵兰花图片n ongoing issue in astronomy obrvations is figuring out how to learn about objects –from planets to stars – that are obscured (9) _____ cosmic dust in what we call our line of sight, the path of light travelling from that object (10) _____ our telescope. Light passing through cosmic dust interacts with its particles. The dust will sometimes absorb and scatter the light, dimming the object’s brightness, although this can also offer valuable insight (11) _____ the size of the dust particles.
英语演讲文章Like houhold dust, cosmic dust can lead (12) _____ misinterpretations of what we are viewing. Your black television stand can end (13) _____ looking grey if you don’t clean it. Similarly, cosmic dust can get mistaken for something el. Just five years ago, rearchers on the BICEP2 experiment revealed they had detected gravitational waves, ripples in space-time, from the univer’s first cond of existence. It turned (14) _____ that instead they had en (15) d_____. The mistaken announcement occurred becau they hadn’t properly subtracted dust out (16) _____ their data. In other (17) w_____, dust can really get in the way of taking a good, clean picture.
