题目
What is the experts' conclusion regarding pandas?A. It is urgent to provide an ideal habitat for them to thrive.B. It is very important to preserve their genetic diversity.C. Their chances of finding new mates have a lot to do with their habitat.D. Their environment for survival has been continuously worsening.
What is the experts' conclusion regarding pandas?
A. It is urgent to provide an ideal habitat for them to thrive.
B. It is very important to preserve their genetic diversity.
C. Their chances of finding new mates have a lot to do with their habitat.
D. Their environment for survival has been continuously worsening.
题目解答
答案
B. It is very important to preserve their genetic diversity.
解析
本题考查学生对文章主旨或关键结论的把握能力。题目要求根据上下文判断专家关于大熊猫的结论。解题核心在于识别文章中专家的核心观点，而非单纯的事实细节。选项B强调“保护遗传多样性的重要性”，这通常是生物多样性保护中的核心概念，需结合文章中是否提到遗传多样性对大熊猫生存的关键作用来判断。
选项分析
选项B正确的原因：
- 遗传多样性是物种生存的基础。大熊猫作为濒危物种，遗传多样性不足可能导致繁殖困难和种群退化。
- 若文章中提到专家建议通过基因研究或迁地保护维持遗传多样性，则直接支持选项B。
其他选项排除：
- A（提供理想栖息地）：虽重要，但可能属于更基础的保护措施，非专家结论的核心。
- C（寻找新伴侣与栖息地的关系）：属于行为生态学问题，与遗传多样性无直接关联。
- D（环境持续恶化）：若文章未明确说明环境恶化是当前主要威胁，则无法确定为结论。