小站备考
托福
托福阅读
new tpo 4阅读

NEW TPO 4 Why does the author mention medical imaging in the second paragraph?

展开
Bioluminescent Organisms
Tip:单击查看句义;划选/双击查生词
Bioluminescence is the production and emission of light by living organisms. Observed in fireflies, jellyfish, and certain fungi, this light is generated through a chemical reaction involving luciferin and luciferase. Fireflies use bioluminescence to communicate, facilitating mating and deterring predators. Jellyfish use light to startle predators, providing an opportunity to escape. Some deep-sea organisms use bioluminescence for hunting, emitting light to attract prey.

Bioluminescence is not limited to animals. Certain fungi, like the ghost fungus, glow in the dark to attract insects that help disperse their spores. Scientists study bioluminescence to develop new technologies, exploring bioluminescent proteins for medical imaging and environmental monitoring. The exact mechanisms of bioluminescence are still not fully understood, despite its intriguing applications.

Ongoing research aims to uncover more about how organisms produce light and why this ability evolved. One area of interest is understanding the genetic and molecular basis of bioluminescence. As scientists delve deeper into the mysteries of bioluminescence, they may discover even more ways to harness this natural phenomenon. This has led to breakthroughs in several scientific fields, including genetics and biotechnology, demonstrating the wide-ranging potential of studying bioluminescence.

5.Why does the author mention medical imaging in the second paragraph?

你的答案:
正确答案:B
题目解析:
 后才能查看题目解析,还没有账号? 马上注册
题干:为什么作者在第二段提到医学成像?选项:A. 表明生物发光的进化主要是为了科学用途 B. 强调生物发光的潜在应用之一 C. 展示荧光素和荧光素酶反应的复杂性 D. 建议在环境监测方面的持续研究 修辞目的题,根据题干medical imaging定位到第二段Scientists study bioluminescence to develop new technologies, exploring bioluminescent proteins for medical imaging and environmental monitoring. 科学家研究生物发光以开发新技术,探索用于医学成像和环境监测的生物发光蛋白。选项A. 表明生物发光的进化主要是为了科学用途,是错误的,应该是科学家研究生物发光以开发新技术,但不是生物发光的进化主要是为了科学用途。选项B强调生物发光的潜在应用之一,正确,科学家研究生物发光以开发新技术,探索在医学上的应用,第3段,科学家们对生物发光之谜的深入研究,他们可能会发现更多利用这种自然现象的方法。这导致了包括遗传学和生物技术在内的几个科学领域的突破,展示了研究生物发光的广泛潜力。所以在医学上的应用是潜在应用之一。选项C展示荧光素和荧光素酶反应的复杂性,段落中没有提到相关信息,错误。选项D environmental monitoring对应答案句,但和题干medical imaging是并列关系,科学家研究生物发光以开发新技术,探索用于医学成像和环境监测的生物发光蛋白。所以提到医学成像不是为了建议在环境监测方面的持续研究,选项D错误。

学习页面

Medi

terr

anean

加强 + 政府 + 名词后缀

加强的政府——管理

原文例句

加入生词

本文生词 0

色块区域是你收藏过的生词;

查询次数越多,颜色越深哦~

显示文中生词

登录后才能收藏生词哦,现在登录注册>

本文重点词 45

文中加粗单词为本文重点词;

根据词频与核心词范围精心挑选,托福考试必掌握词汇。

显示文中重点词
学习本文词汇

文中划选/双击的生词、加粗重点词已收纳至词盒

可随时点击词盒查看哦~

只有在词句精学模式下才能开启词盒功能哦~

我知道了

词盒
收藏
笔记
我的笔记
5000
保存
反馈