当提及六级听力时，尤其是英语六级真题听力，我们不禁会想起那些考验英语学习者听力理解能力的挑战。作为英语六级考试的重要组成部分，六级听力部分不仅要求考生能够捕捉和识别出基本的语言信息，更需要他们在有限的时间内对复杂的语境进行准确理解，并快速作出反应。小编为大家整理了2022年12月英语六级真题听力第一套Passage 1的内容，希望能对您有所帮助！

英文原文

Passage 1

短文1

Stress is often depicted as negative, but research shows that moderate amounts of it can be beneficial for your brain and your body.

压力通常被描述为负面的，但研究表明适量的压力对你的大脑和身体都有好处。

First, the benefits for the brain. Studies have shown that short periods of stress can actually bolster cognitive functioning. Researchers discovered that placing rats in a stressful situation for just a few hours doubles the growth of new brain cells. The rats also did better on a memory test later.

首先，对大脑的好处。研究表明，短时间的压力实际上可以增强认知能力。研究人员发现，将老鼠置于压力环境中仅几个小时，就会使其新脑细胞的增长加倍。这些老鼠在随后的记忆测试中表现也更好。

Scientists think the same thing happens in humans, but how does stress improve memory? It's simple: when your brain cells multiply, your memory can improve. Viewed from a biological perspective, this makes sense because animals that are better at remembering dangerous situations can avoid them in the future.

科学家认为人类身上也会发生同样的事情，但压力是如何改善记忆的呢？很简单：当你的脑细胞增多时，你的记忆力就会提高。从生物学的角度来看，这是有道理的，因为能更好地记住危险情况的动物可以在未来避免它们。

If an animal encounters a predator and escapes, for example, it's important to remember where and when that encounter happened. Experts assert that the same principle applies to humans.

例如，如果一只动物遇到捕食者并逃脱了，那么记住这次遭遇发生的时间和地点就很重要。专家断言，同样的原则也适用于人类。

Now let's turn to how stress benefits the body. This may come as a surprise to layman, but experts say that stress can keep you from getting sick.

现在让我们来看看压力对身体的好处。这可能会让外行人感到惊讶，但专家说压力可以让你避免生病。

Scientists concede that chronic stress can make you more prone to illness, but research shows that short periods of stress can actually provide some protection against getting sick because it increases your immune functioning.

科学家承认，长期压力会让你更容易生病，但研究表明，短时间的压力实际上可以提供一些保护，让你避免生病，因为它可以增强你的免疫功能。

One study shows that rats that experienced brief stress had a surge of immune cell response, which makes the immune system better prepared to fight illness.

一项研究表明，经历过短暂压力的老鼠的免疫细胞反应激增，这使得免疫系统更好地准备对抗疾病。

For humans, there is even evidence that experiencing stress before getting vaccinated could help make vaccines more effective.

对于人类来说，甚至有证据表明，在接种疫苗之前经历压力可以使疫苗更有效。

Questions 9 to 11 are based on the passage you have just heard.

问题9到11是基于你刚刚听到的文章。

Question 9: What did researchers discover about rats placed briefly in a stressful situation?

问题9：研究人员对短暂置于压力环境中的老鼠有何发现？

Question 10: Why do people tend to have clearer memories of dangerous situations they have encountered?

问题10：为什么人们往往对遇到过的危险情况有更清晰的记忆？

Question 11: What do scientists believe chronic stress can do?

问题11：科学家认为长期压力能带来什么影响？