新东方在线网络课堂 GRE 新东方在线 > GRE > GRE阅读 > 正文

GRE阅读题目解析:抗病毒疗法

2017-05-16 09:01:00 来源:新东方在线整理GRE资料下载

  GRE阅读题目解析:抗病毒疗法GRE考试考什么?GRE阅读是重点。新东方在线GRE频道为大家带来GRE阅读题目解析:抗病毒疗法答案见下一页,希望对大家GRE备考有所帮助。更多精彩尽请关注新东方在线GRE频道!

  查看全部:GRE阅读答案解析(汇总)

  GRE阅读题目解析:________

  P1

  The common cold, produced most often by rhinoviruses, is intractable to antiviral defense. A defense against rhinoviruses might nonetheless succeed by exploiting hidden similarities among the rhinovirus strains. For example, most rhinovirus strains bind to the same kind of molecule (delta-receptors) on a cell‘s surface when they attack human cells. Colonno, taking advantage of these common receptors, devised a strategy for blocking the attachment of rhinoviruses to their appropriate receptors. Rather than fruitlessly searching for an antibody that would bind to all rhinoviruses, Colonno realized that an antibody binding to the common receptors of a human cell would prevent rhinoviruses from initiating an infection. Because human cells normally do not develop antibodies to components of their own cells, Colonno injected human cells into mice, which did produce an antibody to the common receptor. In isolated human cells, this antibody proved to be extraordinarily effective at thwarting the rhinovirus. Moreover, when the antibody was given to chimpanzees, it inhibited rhinoviral growth, and in humans it lessened both the severity and duration of cold symptoms. (173 words)

  1. It can be inferred from the passage that a cell lacking delta-receptors will be

  (A) unable to prevent the rhinoviral nucleic acid from shedding its capsid

  (B) defenseless against most strains of rhinovirus

  (C) unable to release the viral progeny it develops after infection

  (D) protected from new infections by antibodies to the rhinovirus

  (E) resistant to infection by most strains of rhinovirus

  2. It can be inferred from the passage that the purpose of Colonno‘s experiments was to determine whether

  (A) chimpanzees and humans can both be infected by rhinoviruses

  (B) chimpanzees can produce antibodies to human cell-surface receptors

  (C) a rhinovirus‘ nucleic acid might be locked in its protein coat

  (D) binding antibodies to common receptors could produce a possible defense against rhinoviruses

  (E) rhinoviruses are vulnerable to human antibodies

  3. In the context in which it appears, "thwarting" most nearly means

  ○A accelerating

  ○B blocking

  ○C warming

  ○D abetting

  ○E neutralizing

  点击下一页查看答案:

本文关键字: GRE阅读 GRE阅读真题

分享到:

课程试听换一换

  • 【GRE无忧计划】 高分托管班(7-8月班)

    ¥5691

  • GRE 在线全程班 (7月下旬A班)

    ¥5980

  • GRE 在线全程班(7月下旬B班)

    ¥5980

  • 【GRE无忧计划】 高分托管班(6-7月班)

    ¥5691

  • 【GRE无忧计划】 写作班(7月下旬班)

    ¥1599

  • 【GRE无忧计划】 填空班(7月上旬班)

    ¥1999

  • 【GRE无忧计划】 数学班(7月上旬班)

    ¥1099

  • 【GRE无忧】词汇突破

    ¥499

相关推荐

交流 • 下载

  • 【GRE无忧计划】 阅读班(6月下旬班)
  • 世界大学排名榜_全球大学排名
  • 全国GRE考点汇总(最新)

热点资讯更多>>

实用 • 工具

GRE课程排行榜本周本月

GRE公开课更多>>

新东方在线张雷冬:Issue准备步骤(一) w 10分47秒
1 新东方在线张雷冬:Issue准备步骤(一)
新东方在线张雷冬:Issue准备步骤(二) w 06分53秒
2 新东方在线张雷冬:Issue准备步骤(二)
新东方在线陈虎平:GRE阅读备考攻略 w 1时29分00秒
3 新东方在线陈虎平:GRE阅读备考攻略
新东方在线宁立波:GRE写作备考攻略 w 1时58分40秒
4 新东方在线宁立波:GRE写作备考攻略
新东方在线杨子江:美国留学GRE备考攻略 w 1时51分51秒
5 新东方在线杨子江:美国留学GRE备考攻略

推荐阅读