英语六级阅读练习内容精选整理：低温生物学

英语六级阅读练习无疑是提升英语能力的重要途径之一。通过这一方式，学习者不仅能够有效地锻炼自己的语言技能，如阅读理解和词汇运用，还能在实践中不断扩充六级词汇，深化对语法知识的理解。以下是一个关于“低温生物学”主题的英语六级阅读练习示例，旨在帮助学习者在掌握知识的同时，进一步加深对英语运用的理解和感受。

英文原文

In the realm of obscure scientific pursuits, the study of cryobiology has garnered a unique fascination. It delves into the mysteries of preserving life forms in a state of suspended animation, commonly known as cryopreservation. Researchers in this field aim to unlock the secrets of longevity and even revive organisms from centuries-old ice.

在鲜为人知的科学探索领域中，低温生物学（cryobiology）引起了独特的兴趣。它深入研究将生命形式保持在一种称为冷冻保存（cryopreservation）的暂停活动状态中的奥秘。该领域的研究人员致力于解开长寿的秘密，甚至从数百年前的冰层中复活生物体。

One of the most intriguing applications of cryobiology is in the field of space exploration. NASA, for instance, has invested heavily in research aimed at protecting astronauts during long-duration missions by cryopreserving sperm and eggs for potential future reproduction. This not only ensures genetic diversity among future generations of spacefarers but also serves as a backup plan for unforeseen circumstances.

低温生物学最引人入胜的应用之一在于太空探索领域。例如，美国国家航空航天局（NASA）投入巨资研究如何在长期任务中保护宇航员，方法之一是冷冻保存精子和卵子以供未来潜在的生育使用。这不仅能确保未来太空探险者后代的遗传多样性，还作为应对不可预见情况的备份计划。

However, the challenges of cryopreservation are formidable. The process of cooling and thawing life forms can lead to irreparable damage to cells, particularly in complex organisms like mammals. Scientists have been working tirelessly to refine freezing protocols and develop cryoprotectants that minimize damage during the process.

然而，冷冻保存的挑战是巨大的。冷却和解冻生命体的过程可能导致细胞发生不可修复的损伤，特别是在像哺乳动物这样的复杂生物体中。科学家们一直在不懈地努力改进冷冻协议，并开发冷冻保护剂，以最大程度地减少该过程中的损伤。

Recently, a breakthrough was made in the preservation of tardigrades, microscopic creatures known for their extreme tolerance to harsh environments. Researchers successfully cryopreserved tardigrades for over 30 years and then revived them, marking a significant step towards long-term storage of complex life.

最近，在保存水熊虫方面取得了突破。水熊虫是已知对极端环境有极高耐受性的微小生物。研究人员成功地将水熊虫冷冻保存了30多年，并随后使其复活，这标志着在复杂生命的长期保存方面迈出了重要一步。

问题

1.What is the main focus of cryobiology?

A) The study of astronomy.

B) The preservation of life forms in a state of suspended animation.

C) The exploration of deep sea creatures.

D) The development of new medical treatments.

2.Why is NASA interested in cryopreservation of sperm and eggs?

A) To study the effects of radiation on genetic material.

B) To ensure genetic diversity among future space travelers' offspring.

C) To create a new species adapted to space.

D) To use as food for astronauts during long missions.

3.What is a major challenge in the process of cryopreservation?

A) The cost of equipment.

B) The limited availability of cryoprotectants.

C) The potential damage to cells during cooling and thawing.

D) The lack of knowledge about ancient life forms.

4.What achievement was made in the preservation of tardigrades?

A) They were discovered to be immune to radiation.

B) They were successfully cryopreserved for over 30 years and revived.

C) Their genome was fully sequenced.

D) They were used as models for studying aging.

答案解析

1.答案: B

解析： 文中第一段明确提到，低温生物学（cryobiology）的主要研究内容是“preserving life forms in a state of suspended animation, commonly known as cryopreservation”（将生命形式保持在一种称为冷冻保存的暂停活动状态中）。

2.答案: B

解析： 第二段提到，NASA对冷冻保存精子和卵子感兴趣，是为了“ensure genetic diversity among future generations of spacefarers”（确保未来太空探险者后代的遗传多样性）。

3.答案: C

解析： 第三段指出，“The process of cooling and thawing life forms can lead to irreparable damage to cells”（冷却和解冻生命体的过程可能导致细胞发生不可修复的损伤）。

4.答案: B

解析： 第四段明确指出，“Researchers successfully cryopreserved tardigrades for over 30 years and then revived them”（研究人员成功地将水熊虫冷冻保存了30多年，并随后使其复活）。这是关于水熊虫保存方面取得的重大成就。其他选项如A项“它们被发现对辐射免疫”、C项“它们的基因组被完全测序”和D项“它们被用作研究衰老的模型”在文中均未提及。

以上就是英语六级阅读练习：低温生物学的文章示例，希望对大家有所帮助！