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2013年6月8日托福机经阅读考题

2013-09-03

栏目:考培资讯

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导语:

小编为各位考生准备了“2013年6月8日托福阅读考题”,希望对考生们的托福备考有所帮助。更多托福机经、真题发布,请关注新通教育!

托福托福考试

第一篇
  TOPIC:Cell-theory细胞理论
  第一段:科学家Robert Hooke在1665年运用“单片镜”看到细胞的轮廓,Hooke用“单片镜”观察细胞轮廓比当时的“双片镜”更有优势(细节题,为什么用“单片镜”观察)。Hooke的历史地位在于他是看到“细胞”的第一人,并给这种结构命名为“cell”,现在一直沿用,但是缺陷在于看到的只是“死细胞”——细胞死后的细胞壁留下的轮廓。
  第二段:Anton van Leeuwenhoek第一次看到了活细胞,是从他的牙龈上刮下来细菌(bacteria)。但是他没有挑战错误的“传统理论”:生命从“无生命形式”发展而来(cell evolves from nonliving form and nothingness)。同样错误的理论是:完整的细胞可由Nucleus (细胞核)生长出membrane(细胞膜)和细胞壁。
  细胞难以被观察到有两大原因:1,技术不够成熟(technology);2.错误理论的根深蒂固。
  第三段:Theodor Schwann和Matthias Jakob Schleiden进一步观察细胞。他们共同观察了“动物”和“植物”的细胞,并得出细胞是“The cell is the fundamental element of organization,unit of structure and function”。Schleiden在显微镜(microscope)下观察到兰花植物(orchid plant)细胞,并在显微镜下也观察到其他动物细胞。两位科学家的共同结论是:细胞(cell)可以单独存在(existed),但是在更大的器官中(larger organisms)
是living organism的一部分(这句话是“重述题”)。他们共同确定了细胞理论。
  第四段:英国科学家Robert Brown完善了细胞理论,并成为细胞理论的先驱者。他的瞻前发现是:很多疾病(diseases)是从一个变异细胞(abnormal cell)演变而来,这在当时并没有被接纳,但是现代理论证明这是正确的。
  
  解析:本文话题属于生物学中的微生物学,从话题角度在TPO中并无直接对应篇章;本文结构为理论的诞生与发展,从结构角度在TPO中与The Birth of Photography, Transition to Sound in Film等文章很相似。此类文章重点是理清不同的理论观点背后的文章脉络。
  Cell theory
  The cell was first seen by Robert Hooke in 1665. He examined (under a coarse,compound microscope) very thin slices of cork and saw a multitude of tiny pores that he remarked looked like the walled compartments a monk would live in. Because of  this association, Hooke called them cells, the name they still bear. However, Hooke did not know their real structure or function. Hooke's description of these cells (which were actually non-living cell walls) was published in Micrographia. His cell observations gave no indication of the nucleus and other organelles found in most living cells.
  The first person to make a compound microscope was Zacharias Jansen, while the first to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra and named the moving organisms animalcules, meaning "little animals". Leeuwenhoek probably also saw bacteria. Cell theory was in contrast to the vitalism theories proposed before the discovery of cells.The idea that cells were separable into individual units was proposed by Ludolph Christian Treviranus and Johann Jacob Paul Moldenhawer. All of this finally led to Henri Dutrochet formulating one of the fundamental tenets of modern cell theory by declaring that "The cell is the fundamental element of organization".
  The observations of Hooke, Leeuwenhoek, Schleiden, Schwann, Virchow, and others led to the development of the cell theory. The cell theory is a widely accepted explanation of the relationship between cells and living things. The cell theory states:
  All living things or organisms are made of cells and their products.
  New cells are created by old cells dividing into two.
  Cells are the basic building units of life.
  The cell theory holds true for all living things, no matter how big or small.Since according to research, cells are common to all living things, they can provide information about all life. And because all cells come from other cells, scientists can study cells to learn about growth, reproduction, and all other functions that living things perform. By learning about cells and how they function, you can learn about all types of living things. Cells are the building blocks of life
  Credit for developing cell theory is usually given to three scientists: Theodor Schwann, Matthias Jakob Schleiden, and Rudolf Virchow. In 1839, Schwann and Schleiden suggested that cells were the basic unit of life. Their theory accepted the first two tenets of modern cell theory (see next section, below). However, the cell theory of Schleiden differed from modern cell theory in that it proposed a method of spontaneous crystallization that he called "free cell formation". In 1855, Rudolf Virchow concluded that all cells come from pre-existing cells, thus completing the classical cell theory. (Note that the idea that all cells come from pre-existing cells had in fact already been proposed by Robert Remak; it has been suggested that Virchow plagiarised Remak.)

  第二篇:
  TOPIC:Wild Crops Domestication in Southwest Asia西南亚野生作物的驯化/种养描述了西南亚野生作物驯化(domestication)的艰难。
  第一段:理解西南亚农业文化的发展,不可避免的要理解小麦(wheat)、大麦(Barley)的驯养化(domestication)过程。最早进行驯养化的野生作物是豆荚(legume)(“推理题”:选项为豆荚 legume 不是理解西南亚农业文化必不可少野生作物作物--小麦、大麦才是)。在西南亚驯养化过程中,猪(pig)的地位比牛(cattle)、羊(sheep)重要。
  第二段:野生作物的驯养化艰难。早期农民发现,只有在很多条件共同满足下才能得到饱满的稻穗:如阳光,水 和土壤(sunlight, water and soil)。所以如果野生作物不能发展出适应恶劣环境或者各种环境的特征,农民只能在稻田里收割到很少的作物,并且分布分散(scattered in the tract)。
  第三段:稻穗中有一个重要的结构是连接茎秆(stalk)和穗头的部分的“柄”。通常野生作物的“柄”非常脆弱,风一吹或者动物一碰,穗头就会掉落,这给早期农民收割稻穗带来很大的麻烦。因为不能用镰刀(sickle)收割(镰刀太硬,碰落稻穗)。但是如果不用镰刀,收割作物是很困难的(这句为“插入提”,插入句中有 sickle 这个单词,只有前面这一句提到了sickle。
  第四段:另一个驯养化困难是:野生作物有坚硬的外壳(husk),以保护kernel不受霜冻和寒风的侵袭(frost and wind)。而人类的消化系统难以消化如此坚硬的外壳。还有一个困难是,野生作物的一株作物的麦穗只有两根,产量很低,现代驯养化的一株作物的麦穗有六根,所以野生作物需要发展出多麦穗的特征。
  第五段:野生作物只有发展出以上所说的所有驯养化特征,才值得农民大面积"劳动密集型"耕作。(此举为"重述题")。
  解析:本文话题属于生物学中的植物学和农业史的结合,与TPO中如the Origins ofAgriculture较对应;本文结构从机经回忆来看,主体结构是分类,围绕野生作物驯化的困难分别来谈。本篇文章考生普遍反映难度较大,主要是所谈内容与城市日常生活较远,建议大家在平时复习时多积累一些各学科的基本知识。
  
  第三篇:
  TOPIC:Red-billed Quelea红嘴奎利亚雀
  讲述红嘴奎利亚雀适应(adaptation)生存环境的艰难过程。
  第一段:除了鸟类学家(ornithologist)和当地人(people see the birds in the native habitat)看得到红嘴奎利亚雀,世界上其他人很少听到"红嘴奎利亚雀"的名字,但是根据它的实际存在数量(several billions)可以得知“红嘴奎利亚雀”是世界上最普遍的鸟类(the most common bird in the world)。
  第二段:红嘴奎利亚雀身体小巧,要适应多变的生存环境非常艰难,但是它却发展出多特征(adaptations)。红嘴奎利亚雀以食青草(annul green grass)为生。实际上,她是以食用青草的种子(green grass seeds)为生(此句为"插入题")。但是"草种"随着季节的变化有多有少,所以以食用草种为生的动物必须衍生出特殊的习性。
  举例:啮齿类动物(rodent)在冬天储存食物就是适应寒冬食物短缺的困难(“修辞目的题”:作者为什么提到啮齿类动物?)。红嘴奎利亚雀没有这样的特性,但是有自己的特征,分两方面:1.在干旱的季节的末期(the end of dry season),红嘴奎利亚雀会吃很多食物以增加重量(gain weight),以便抵御食物短缺;2,干旱季节过后紧接着是雨季早期(the early of the rain season),这个时候红嘴奎利亚雀不能吃草种,因为草种都在发芽(germinate),发芽的草种是不能吃的,所以红嘴奎利亚雀会飞往其他可食用的田地。这个食物短缺的过程将持续6-8周(6-8 weeks)。
--这里有"推理题":从文中6-8周我们可以推理出什么?答案:青草利用者6-8周发芽长出青草和新的种子。
  第三段:所以红嘴奎利亚雀的生活基本上就是从"食物短缺"的habitat不断寻找suitable和有食物的田地的过程。但是6-8周后,红嘴奎利亚雀会回到当初雨季早期青草发芽的地方,因为此时青草肥美,草种丰盛,于是所有的红嘴奎利亚雀开始了"繁殖周期"(breeding cycle),这个周期很短,因为气候多变,但是规模宏大,令人惊叹。有时在同一天同一个区域能看到millions of Red-billed Quelea hatch in millions of nest,蔚为壮观。更壮观的是,当小鸟破壳而出时,所有的蛋壳一起掉落像"下雪"一样(原句:fallthe of the eggshell and the subsequent dropping of the shell are likened to be snow fall)。而且红嘴奎利亚雀的繁殖周期可以"同步"(synchronize)。如果前面的雨季还没有结束,那么所有鸟的"繁殖周期"就同时缩短,短的可达几天。
  第四段:红嘴奎利亚雀被认为是农作物的"害鸟"。因为红嘴奎利亚雀连艰难的生存环境和难吃的野生作物都能适应,那么农民大面积种植粮食作物就成了他们很好的食物。又由于数量众多,红嘴奎利亚雀在世界范围内被认为是最大的“害鸟”。
  解析:本文话题属于生物学中的动物学,从话题角度与TPO大量文章对应,而动物学一直以来都是托福阅读部分的重点考察内容。本文结构是典型的维基百科式的介绍性文章,这类结构在托福阅读中也颇为常见,与TPO中Spartina等文章对应。

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