B
While I will explain a bit about the science of stress and relaxation a little later r simple way to think about it is that our body 's stress response works like a car alarm. keep us safe by warning us of the presence of danger in our immediate environment.
But instead of warning us with a loud and annoying sound，our body alarm system lets us know that something is wrong by creating changes in our neurochemistry (神经化学）.If you've ever expe¬rienced pain in your stomach，periods of extreme anger，inability to focus or even insomnia (失眠），
chances are your body was paying the price in those moments for the brain chemistry of stress.
So if it's so uncomfortable，why not just get rid of stress altogether?
This is not only impractical，it would be dangerous. Let's go back to the metaphor (比喻说法） of the car alarm. If the alarm is turned off altogether，the car is exposed to continual danger without there being any way of your knowing about it until it is too late. It would be like walking through the jungle without any fear signal in the presence of a poisonous snake or other dangerous animals — while it might feel “nice” to be so relaxed，your body actually needs the stress response not only to remind you of danger but also to offer extra adrenaline (肾上腺素) for your heart and extra blood and oxygen for your arms and legs.
However，if the car alarm goes off at any time，someone just looks at the car with a bit of an atti- tude，and it becomes equally useless. Not only do we stop paying attention to it，but it begins to drive us and everyone around us becomes a little bit crazy. In the case of our bodies，walking around in a constant state of alarm also has some pretty alarming health consequences，which we will explore in greater depth in the next chapter.
25.Our body's stress response is compared to a car alarm in that .
A.they work all the time
B. they both give a signal
C.they work in the same way
D. they both produce a sound
26.When our body alarm system works， .
A.we feel calm
B.we feel excited
C.some changes happen in our brain
D. some changes happen in our heart
27. What would happen if stress were got rid of completely?
A. We'11 be free of worries.
B. We'11 achieve a sense of safety.
C. We'11 reach a perfect state of mind.
D. We'11 f
28. What's the purpose of giving the example of walking through the Jungle in Paragraph 4 ?
A. To show the harm of stress.
B. To show the effect of stress.
C. To explain the function of stress response.
D. To explain the necessity of stress response.
正确答案
BCDD
解析
25.本题主要是文意理解题，根据第一段“it is that our body 's stress response works like a car alarm.keep us safe by warning us of the presence of danger in our immediate environment.”身体的应激反应就像汽车警报器一样，当我们处于危险时会给我们发出警报。可知，这两者都会发出信号，所以选择B选项。
26.本题主要是文意理解题，根据文章第二段“But instead of warning us with a loud and annoying sound，our body alarm system lets us know that something is wrong by creating changes in our neurochemistry (神经化学）.”汽车警报器会发出扰人的噪音，而人体警报系统则会通过在神经化学上的一些变化向我们发出警报。而我们的神经主要由大脑控制，所以选择C选项。
27.本题主要是文意理解题，根据文章第四段可知，如果人体没有了应激反应，那么就像汽车警报器失灵了或是就像我们走在丛林中，却无法感觉到任何有关毒蛇或是其它危险动物的迹象一样，而当我们发现危险时已经来不及了。因此，如果人体没有了应激反应，那么是很难发现潜在的危险的，故选择D选项。
28.本题主要是文意理解题，根据第四段“It would be like walking through the jungle without any fear signal in the presence of a poisonous snake or other dangerous animals — while it might feel “nice” to be so relaxed，your body actually needs the stress response not only to remind you of danger but also to offer extra adrenaline (肾上腺素) for your heart and extra blood and oxygen for your arms and legs.”可知，就像走在丛林里无法感觉到任何有关毒蛇活危险动物的信息，你可能会感觉到很放松，开心，但是人体确实需要应激反应告知我们潜在的危险，并且这也可以给我们的心脏提供额外的肾上腺素，给我们的四肢提供血液和氧气。所以选择D选项。
考查方向
25.本题考查了对文章的理解。
26.本题考查了对文章的理解。
27.本题考查了对文章意思的理解。
28.本题考查了对文章的理解。
解题思路
25.文意理解题。根据第一段“it is that our body 's stress response works like a car alarm.keep us safe by warning us of the presence of danger in our immediate environment.”身体的应激反应就像汽车警报器一样，当我们处于危险时会给我们发出警报。可知，这两者都会发出信号。
26.文意理解题。根据文章第二段“But instead of warning us with a loud and annoying sound，our body alarm system lets us know that something is wrong by creating changes in our neurochemistry (神经化学）.”汽车警报器会发出扰人的噪音，而人体警报系统则会通过在神经化学上的一些变化向我们发出警报。而我们的神经主要由大脑控制。
27.文意理解题。根据文章第四段可知，如果人体没有了应激反应，那么就像汽车警报器失灵了或是就像我们走在丛林中，却没有发现任何有关毒蛇或是其它危险动物的迹象一样，而当我们发现危险时已经来不及了。
28.文意理解题。根据第四段“It would be like walking through the jungle without any fear signal in the presence of a poisonous snake or other dangerous animals — while it might feel “nice” to be so relaxed，your body actually needs the stress response not only to remind you of danger but also to offer extra adrenaline (肾上腺素) for your heart and extra blood and oxygen for your arms and legs.”可知，就像走在丛林里无法感觉到任何有关毒蛇活危险动物的信息，你可能会感觉到很放松，开心，但是人体确实需要应激反应告知我们潜在的危险，并且这也可以给我们的心脏提供额外的肾上腺素，给我们的四肢提供血液和氧气。
易错点
25.文章细节的理解。
26.对文章意思的理解。
27.文章意思的理解。
28.文章意思的理解。