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07年考研英语阅读理解精读100篇unit38

Unit 38

  Bragg***g about your fancy ***w cell pho*** is a fleet***g pleasure; after all, ***day's ***olest models tend *** be ***xt month's paperweights. By ***ntrast, the half-***fe of a ***rdless pho*** f*** the ho*** is ***asur*** *** years. So if you really want *** be ahead of the tech curve, f***get the cell-pho*** wars and check out the ***w 5.8-GHz ***rdless pho***s.

  Na***d after the frequency of the radio w**e (***asur*** *** bil***ons of cycles per se***nd) that carries the signal between the handset and the base station, 5.8-GHz pho***s promise m***e clarity bec***se there are fewer de***ces that operate on the sa*** frequency and thus fewer *** c***se ***terference. If you h**e a ***rdless pho*** that is a ***uple of years old *** even a ***w o*** that ***sts less than $50, chances are it is a 900-MHz model that is highly susceptible *** stat*** *** buzz***g from baby moni***rs, wireless speaker systems and your ***ighb***s' 900-MHz pho***s. The ***wer 2.4-GHz units, ***troduc*** as an improve***nt over the 900-MHz models, do get less stat***, but wireless ho*** ***tw***ks and m***row**e ovens can still trigger a snap-crackle-pop effect. Not so the 5.8 GHz. So far, o***y a few ***mpanies sell the ***w models, and they don't ****** cheap. Uniden's TRU5865 ***sts $149, while the Vtech 5831 is $179. I preferr*** the Uniden bec***se it was stat*** free both ***side my apart***nt and up *** a block away. Its ***mpact design hides the antenna ***side the handset, and the glow***g ***ange keys and display look sharp. The VTech ***t equally clear reception ***do***s, but I ***uld stray o***y a few build***gs down the block bef***e buzz***g set ***.

  But is it really w***th an extra $100 (*** m***e) *** step up *** 5.8 GHz? Maybe. When I tri*** out the Panason*** KX-TC1481B, a $39 900-MHz model, I ***uld hear other ***nversations and even mus*** ***m***g through the pho***. I ***t much clearer reception with the Mo***rola MA351, a $60 2.4-GHz model——except when I tur***d on my m***row**e oven and was ass********* by weird ***brat***g noises ***m***g through the handset. Still, the Mo***rola is a decent option at a fair pr***e.

  No matter wh***h k***d of pho*** you're ***nsider***g, a few other fac***rs are w***th keep***g *** m***d. First, ask about battery ***fe. While I ***k*** the reception best on the Uniden, f*** example, it can *** o***y four hours between charges vs. eight on the Vtech.

  Next, f***d out if the pho*** is analog *** digital. Both 5.8-MHz pho***s are digital, but that's not always the case with the models that use other frequencies, and this makes them an easier target f*** e**esdroppers. The best digitals use digital spread-spectrum (DDS) technology, wh***h sends the signal down a broad range of frequencies *** ensure that it gets through.

  F***ally, ***p at a s***re that offers a mo***y-back guarantee. That way you can ***rture test the pho*** f*** a few days. Then, once you're certa*** everyth***g's O.K., *** ahead and start bragg***g about it *** all your friends.

  注(1):本文选自Ti***; 12/2/2002, p104, 3/4p, 3c;
  注(2):本文习题命题仿效工具2004年真题Text 1;

  1. How does the ***th*** ***troduce the ***p***?

  [A]Expla******g a pheno***non.
  [B]Justify***g an assumption.
  [C]Pos***g a ***ntrast.
  [D]Mak***g a ***mparison.

  2. Wh***h of the follow***g can be an advantage of Vtech over Uniden?

  [A]A longer battery ***fe.
  [B]Free of stat*** ***terference.
  [C]Fashionable outlook.
  [D]***mpact design.

  3. The expression “susceptible ***”(L***e 5, Paragraph 2) most probably ***ans __________.

  [A]relevant with
  [B]adaptable ***
  [C]immu*** from
  [D]sen***ive ***

  4. What is the most dist***ctive feature of 5.8-GHz pho***s?

  [A]Fairer pr***e.
  [B]Higher clarity.
  [C]M***e attractive model.
  [D]No easier target f*** e**esdroppers.

  5. Wh***h of the follow***g is true a******d***g *** the text?

  [A]It is w***thwhile *** buy any of 5.8-GHz pho***s.
  [B]Battery ***fe determ***es your selection of the pho***.
  [C]The ear***er you bought the pho***, the m***e stat*** ***terference you ***t.
  [D]5.8-GHz pho***s are be***m***g popular with ***nsu***rs.

  解答:CADBC

  篇章分析

  本文是一篇阐明文,具体先容了新一代无绳德律风的效能和购置时应留意的事情。第一段指出无绳德律风比移动电话的有用性强;第2段指出新一代无绳德律风比之前的无绳德律风产物的清楚度和抗静电搅扰性要强的多,而且对两款新一代无绳德律风产物举行了对比;第3段指出有价值购置新一代产物;第4段、5段和6段指出怎样举行产物挑拣。

  辞汇正文

  ***rdless[5kC:dlIs]adj.不必电线的
  ch***[Fi:k,FIk]n.新奇的名目(尤指女性的衣着)
  e***m***ate[I5lImI***It]vt.扫除, 打消
  stat***[5stAtIk]adj.动态的, 静力的; n. 静电噪声
  brag[brA^]v.夸大其词
  cell pho*** n.移动电话
  fleet***g adj.飞逝的;长久的
  paperweight[5peIpEweIt]n.纸镇, 书镇
  half-***fe n.(东西衰败前的)利用(或盛行)期
  curve[k\:v]n.曲线, 直曲, [球类]曲线球, [统]曲线图表
  check out v.付帐后离去, ,查验, 及格, 合格
  gHz abbr. gigahertz千兆赫兹
  handset[5hAndset]n.德律风听筒, 移动电话, 手持机
  base station n.基地台
  MHZ 兆赫(兹)
  susceptible[sE5septIb(E)l]adj.易受感化的, 易冲动的, 允许……的
  buzz[bQz]v.作嗡嗡声, 嗡嗡作响, 切近亲近
  trigger[5trI^E(r)]vt.引起, 引发, 触发
  ***mpact[5kRmpAkt]adj.松散的, 密切的, 简练的
  stray[streI]v.迷途, 偏离
  set *** v.起始, 到来, 下跌, 拔出, 嵌入,起始, 落潮
  step up *** 接进, 走进
  ass******[E5sC:***]v.打击
  analog[5AnElR^; (?@) 5AnElC:^]n.相似物, 类似体
  e**esdropper[ `i:vz9drCpE(r) ]n.窃听者
  mo***y-back adj.(消耗者如对所购产物不满)有权取得退款的
  ***rture[5tC:tFE(r)]v.损坏性实验

  难句进展

  If you h**e a ***rdless pho*** that is a ***uple of years old *** even a ***w o*** that ***sts less than $50, chances are it is a 900-MHz model that is highly susceptible *** stat*** *** buzz***g from baby moni***rs, wireless speaker systems and your ***ighb***s' 900-MHz pho***s.

  主体句式:chances are …

  构架解析:本句是一个状况从句。正在从句中,双个that引诱的都是定语从句,分手润色pho*** 和a ***w o***,个中o***指代的也是pho***;主句句形是chances are,这是一个稳固用法,意义是it is most probable;主句中that引诱的是定语从句,个中susceptible ***的意义是“易受感化的”。

  句子译文:假如你家的无绳德律风是你两、3年前购置的,大概是你花了不凌驾50美圆的价钱新买的,那末你这部德律风非常大概是900兆赫的。这款德律风极易受静电的搅扰,婴儿监控器、无线扬声器体系和街坊家的900兆赫款德律风都能使它收回嗡嗡声。

  标题解析

  1. 解答为C,属真相细节题。文章开首利市机和无绳德律风的有用性举行了比较,意正在指出

  无绳德律风的有用性较强。

  2. 解答为A,属真相细节题。原文对应资讯是“While I ***k*** the reception best on the Uniden, f*** example, it can *** o***y four hours between charges vs. eight on the Vtech.”。选项B是这两种无线德律风的独特特点;选项C和D是Uniden的特点。

  3. 解答为D,属猜词题。正在文章第2段,作者就5,800兆赫无绳德律风和之前的无绳德律风产物正在抗搅扰效能举行了比较。5,800兆赫无绳德律风差不多不受静电搅扰的感化,而之前的产物则分歧,由此可猜出词义。

  4. 解答为B,属真相细节题。原文对应资讯是第2段“5.8-GHz pho***s promise m***e clarity”。

  5. 解答为C,属真相细节题。本题的闭键是对句子“If you h**e a ***rdless pho*** that is a ***uple of years old *** even a ***w o*** that ***sts less than $50, chances are it is a 900-MHz model that is highly susceptible *** stat*** *** buzz***g from baby moni***rs, wireless speaker systems and your ***ighb***s' 900-MHz pho***s.”的领悟。具体诠释拜见难句进展全体。

  参考译文

  夸耀你的新款移动电话怎样的奇妙仅是刹那的欢乐,由于今日最酷的机型到下个月就仅能拿它当镇纸用了。相同,家用无绳德律风的利用期倒是有些岁首的。以是假如你真想走正在技术进展的前沿,那末就请你忘记移动电话大战,去尝尝新款5,800兆赫无绳德律风吧。

  这款5,800兆赫德律风因此正在德律风听筒和基地台之间传送着旌旗灯号的无线电波(每秒几10亿赫)频次来定名的。这款德律风之以是能保障其音质更加清楚,缘故正在于差不多不生存其他同频次运行的设施,因而形成的搅扰也就差不多不生存。假如你家的无绳德律风是你两、3年前购置的,大概是你花了不凌驾50美圆的价钱新买的,那末你这部德律风非常大概是900兆赫的。这款德律风极易受静电的搅扰,婴儿监控器、无线扬声器体系和街坊家的900兆赫款德律风都能使它收回嗡嗡声。2,400兆赫机型被举荐为900兆赫机型的改善款,它切实其实能缩减静电搅扰,可是家无线互联网和微波炉仍是无奈制止对其发生噼啪啪嚓的搅扰效用。可是这款5,800兆赫德律风不会显现这类状况。迄今为止,唯一几家企业发卖新机型,并且售价不菲。友利电TRU5865型售价149美圆,伟易达5831款是179美圆。我偏幸友利电德律风是由于不论正在室内仍是正在一个街区以外,它都不受静电的搅扰。玲珑的形状策划把天线置于听筒内,颜色明显的橘黄按键和显现器看起来十分时兴。伟易达德律风的室内吸收动机也一样清晰,可是我沿街区刚走了几幢楼它就起始有嗡嗡声了。

  真的非常有价值你多花100美圆(或更多)去购置5,800兆赫德律风吗?可能还真值。当我试用松下售价39美圆的900兆赫KX-TC1481B款无绳德律风时,我能听到他人的交谈,乃至另有乐曲经由过程听筒传过去。摩托罗推售价60美圆的2,400兆赫MA351款无绳德律风接听动机还要更清晰一些——固然除我关上微波炉遭到从听筒里传来的奇异的触动噪声打击的时分。虽然云云,摩托罗推价钱公允,算是个不错的挑选。

  不论你正在思索购置哪一款德律风,你都应当服膺其他几个方面的要素。起首,问询电池的寿命。好比说,固然我喜爱友利电的接听动机,但相对于于伟易达8小时的电池利用时辰,它的利用时辰仅为4小时。

  其次,看是仿照机仍是数目机。双个牌子的5,800兆赫德律风都是数目的。可是利用其他频次的话机一般不是如许的,这就使这些话机更易成为窃听者的目的。的数目话机利用的是扩大频谱(DDS)手艺,这类手艺可以使旌旗灯号正在更广的频次局限内发送,如许能保障旌旗灯号胜利发送。

  最初,要正在供应有退款保障的商铺购置。如许你就可以做几天的损坏性实验。一旦你能断定这部德律风各方面效能都不错,那末你就去跟一切的友人夸耀去吧。

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