ChaseDream

标题: GWD17-11 [打印本页]

作者: shellsnow    时间: 2005-12-12 05:19
标题: GWD17-11

Q11:


Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species.  Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates.  Clearly, dropping this restriction would allow the other species to recover.



Which of the following, if true, most seriously undermines the argument?




  • Hunting limits for snow geese were imposed many years ago in response to a sharp decline in the population of snow geese.

  • It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.

  • The number of snow geese taken by hunters each year has grown every year for several years.

  • As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.

  • In the snow goose’s winter habitats, the goose faces no significant natural predation.

  •    Answer:


    这个不明白,文章说,如果把这个RESTRICTION去掉,就可以让大家自由打猎SNOW GOOSE了,然后这样他们的数量减少就可以让BIRD得以恢复,问WEAKED


    可是答案是已经有好多年了,自从这个RESTRICTOIN使得打猎的季节比原定的时间提早结束。


    这不就是支持了原文了吗???


    请牛牛点拨,谢谢:)


    作者: shellsnow    时间: 2005-12-12 05:55
    SORRY 重贴
    作者: shellsnow    时间: 2005-12-14 14:21

    Scientists studying the physiology


             of dinosaurs have long debated whether


             dinosaurs were warm- or cold-blooded.


    Line  Those who suspect they were warm-


      (5)  blooded point out that dinosaur bone


    is generally fibro-lamellar in nature;


    because fibro-lamellar bone is formed


    quickly, the bone fibrils, or filaments, are


    laid down haphazardly.  Consistent with


    (10)  their rapid growth rate, warm-blooded


    animals, such as birds and mammals,


    tend to produce fibro-lamellar bone,


    whereas reptiles, which are slow-


    growing and cold-blooded, generally


    (15)  produce bone in which fibrils are laid


    down parallel to each other.  Moreover,


    like the bone of birds and mammals,


    dinosaur bone tends to be highly


    vascularized, or filled with blood


    (20)  vessels.  These characteristics,


             first recognized in the 1930’s,


             were documented in the 1960’s by


    de Ricqlès, who found highly vascular-


    ized, fibro-lamellar bone in several


    (25)  groups of dinosaurs.  In the 1970’s,


    Bakker cited these characteristics as


    evidence for the warm-bloodedness of


    dinosaurs.  .Although de Ricqlès urged


    caution, arguing for an intermediate type


    (30)  of dinosaur physiology, a generation of


    paleontologists has come to believe


    that dinosaur bone is mammalianlike


          In the 1980’s, however, Bakker’s


             contention began to be questioned, as a


    (35)  number of scientists found growth rings


    in the bones of various dinosaurs that


    are much like those in modern reptiles.


    Bone growth in reptiles is periodic in


    nature, producing a series of concentric


    (40)  rings in the bone, not unlike the growth


            rings of a tree.  Recently, Chinsamy


    investigated the bones of two dino-


    saurs from the early Jurassic period


    (208-187 million years ago), and found


    (45)  that these bones also had growth rings;


    however, they were also partially fibro-


    lamellar in nature.  Chinsamy’s work


    raises a question central to the debate


    over dinosaur physiology:  did dino-


    (50)  saurs form fibro-lamellar bone because


    of an innately high metabolic rate asso-


    ciated with warm-bloodedness or


    because of periods of unusually fast


    growth that occurred under favorable


    (55)  environmental conditions? (Although


    modern reptiles generally do not form


    fibro-lamellar bone, juvenile crocodiles


    raised under optimal environmental


    conditions do.)  This question remains


    (60)  unanswered; indeed, taking all the evi-


    dence into account, one cannot make


    a definitive statement about dinosaur


    physiology on the basis of dinosaur


    bone.  It may be that dinosaurs had an


    (65)  intermediate pattern of bone structure


    because their physiology was neither


    typically reptilian, mammalian, nor avian.


    --------------------------------------------------------------------------------


    Q33:


    The author of the passage would be most likely to agree that the “caution” (line 29) urged by de Ricqlès regarding claims about dinosaur physiology was


                  



    1. unjustified by the evidence available to de Ricqlès

    2. unnecessary, given the work done by Bakker and his followers

    3. indicative of the prevailing scientific opinion at the time

    4. warranted, given certain subsequent findings of other scientists

    5. influential in the recent work of Chinsamy

    De Ricqules, 的观点到底是什么? 我不太理解这个结构, 文章中 Although de Ricqlès urged


    caution, arguing for an intermediate type


    (30) of dinosaur physiology, a generation of


    paleontologists has come to believe


    that dinosaur bone is mammalianlike


    Although,....de R urged caution, arguing for an intermediate type... A generation of.....由于although 的存在,说明de R对这个广为接受的观点有反对意见,所以caution 这里应该是A 答案吧


    请战友解释,可能我走到死胡同里了------------------





    作者: 马上考    时间: 2005-12-15 09:15

    up!



    作者: Maggie_Ru    时间: 2005-12-19 16:13

    对啊~~~我也这么觉得~~~~~真是费解啊~~~~~~~~


    我猜想如果把 自从restriction开始实行以来~~人们都提早结束狩猎期~~理解成人们捕获不到5%的geese就停止狩猎~~也就是说snow geese已经不在是a popular quarry for hunters ~~~那么解除restriction也不会使人们增加狩猎~~~~如果这样理解的话~~~就可以削弱原文了~~~~


    可是~~我还是觉得B选项这样理解有些牵强~~~~~唉~~~望nn指点迷津啊~~~


    就要考试了~~~逻辑还混混滴~~~


    作者: jasonzhangusa    时间: 2005-12-19 17:58
    以前好像讨论过,B
    作者: hwhhs    时间: 2006-6-30 12:26
    up,我还是不理解
    作者: hwhhs    时间: 2006-7-7 15:50
    .
    作者: kkang    时间: 2006-8-10 02:26

    B說 連續很多年 restriction都讓打獵提早結束 表示這些年裡 獵人對geese的需求不只5% (讓我們假設如果沒有restriction  獵人可能會獵到10%) 

    文章中說 geese有recent sharp increase in population   也就是最近geese的總數變多了 假如獵人的需求數量不變 那麼也許只要獵到現在總數的5%  獵人的需求就已被滿足  就算取消restriction也不會想要獵更多 => weaken 

    但是這個答案好像不是很完美 因為假如以現在增加後的geese population來說  獵人要獵到6%才滿足需求  那麼restriction若取消 他們還是可能會繼續打獵 所以我覺得B的答案似乎不夠好 不過相對其他答案來說 應該是最好的


    作者: 肖小    时间: 2006-8-26 20:48

    个人觉得scheduled date是个说不清的概念

    到底是指什么?


    作者: 肖小    时间: 2006-8-26 20:53
    以下是引用肖小在2006-8-26 20:48:00的发言:

    个人觉得scheduled date是个说不清的概念

    到底是指什么?

    偶看错了...

    汗...


    作者: elfgoer    时间: 2008-6-20 15:20
    scheduled date指的就是達到5%禁殺令的那天
    作者: ajchester    时间: 2008-7-29 14:45
    Some species of Arctic birds are threatened by recent sharp increases
                in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species.
    Although snow geese are a popular quarry for hunters in the southern regions where they winter, the hunting season ends if and when hunting has reduced the population by five percent, according to official estimates.
    Clearly, dropping this restriction would allow the other species to recover.(你不知道他要解禁的是時間上的管制,還是數量上的管制,請不要胡思亂想)

    Which of the following, if true, most seriously undermines the argument? = 解禁對數量管制是無效的

    本題有兩個Factors:"時間"和"數量"
    B.很多年以來獵季都比預估的提早結束=提早獵到預估的規定數量=族群的量超出預估=若規定是對管制數量有效的,族群數量應下降, 而題目中卻說近年數量是上升的, 表示管制是無效的 = weaken  (答案中有暗示數量與時間兩個因子)
    It has been many years since the restriction led to the hunting season for snow geese being closed earlier than the scheduled date.
    C.每年被獵的量都上升=族群的5%上升=族群上實質的量上升(但是你不知道上升多少,一隻也是多兩隻也是多) 且提到的因僅有"數量"沒有"時間", 的確可以反駁禁令對管制量有效,但是比起B的weaken來的薄弱
    The number of snow geese taken by hunters each year has grown every year for several years.
    D.數量上升改棲地, "若有人想獵人會找不到, 就是犯了自行衍伸思考的毛病"
    As their population has increased, snow geese have recolonized wintering grounds that they had not used for several seasons.


    作者: Eliott    时间: 2009-2-21 12:05
    up
    作者: 阿彻    时间: 2009-7-28 17:53
    我也不是很懂~~~请教……




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