题目

1、A. They began to get irritated and restless.B. They began to show signs of depression.C. The growth of their new brain cells doubled.D. The rate of their growth increased dramatically.2、E. To reflect on their causes.F. To warn others against them.G. To make good sense of them.H. To avoid them in the future.3、I. Provide protection against mental illnesses.J. Make people more susceptible to illness.K. Weaken one’s immunity in the long run.L. Produce a surprising healing effect.

1、
  • A. They began to get irritated and restless.
  • B. They began to show signs of depression.
  • C. The growth of their new brain cells doubled.
  • D. The rate of their growth increased dramatically.2、
  • E. To reflect on their causes.
  • F. To warn others against them.
  • G. To make good sense of them.
  • H. To avoid them in the future.3、
  • I. Provide protection against mental illnesses.
  • J. Make people more susceptible to illness.
  • K. Weaken one’s immunity in the long run.
  • L. Produce a surprising healing effect.

题目解答

答案

1、C2、D3、B

解析

  1. 第一题考查对实验结果的理解，需结合压力对脑细胞生长的影响。关键点在于实验组与对照组的对比，压力减少是否促进新脑细胞生长。
  2. 第二题需判断研究目的，需明确实验设计的核心意图，观察压力对细胞生长速率的作用。
  3. 第三题考查压力对健康的影响，需联系压力与免疫力的关系，长期压力是否削弱免疫力。

第1题

关键思路：实验显示，压力减少后，新脑细胞的生长速度显著变化。

  • 选项C（增长翻倍）直接对应实验结果“the growth of their new brain cells doubled”，与题干描述一致。
  • 其余选项（如A、B描述情绪变化，D强调“dramatically”但未明确倍数）均与实验数据不符。

第2题

关键思路：研究目的需聚焦实验设计本身，而非外延用途。

  • 选项D（观察生长速率）符合实验通过对比压力组与无压力组，直接测量细胞生长速度的意图。
  • 其余选项（如E、F涉及反思或警告，H涉及避免压力）偏离实验核心目标。

第3题

关键思路：长期压力对健康的影响需结合生理学知识。

  • 选项J（易患病）对应长期压力会削弱免疫力的结论。
  • 选项K（削弱免疫力）虽相关，但题目强调“susceptible to illness”（易患病），J更贴合题意。