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科普环保类阅读理解（5）

2016高考英语阅读练习——科普环保类

Our body clock, or natural body rhythm, influences our energy and alertness. Paying attention to it can help us choose the suitable time of the day when we best perform specific tasks.

The reality, however, is that most of us organize the time around work demands, school deadlines, commuting or social events. Doing whatever the body feels like doing is a luxury in today’s fast-paced modern society.

But that doesn’t mean it isn’t worth trying. Obeying our body clock has significant health benefits. Disrupting our natural body rhythm, on the other hand, has been linked to problems such as depression, obesity, or headache, says Steve Key, a biology professor.

When the body clock can synchronize (使…同步) the rhythms of its natural processes, it “gives us an advantage in daily life”, says Key.

According to him, when it comes to cognitive (认知的) work, most adults perform best in the late morning. As our body temperature starts to rise just before awakening in the morning and continues to increase until midday, our memory, alertness and concentration gradually improve.

However, he adds, our ability to concentrate typically starts to decrease soon thereafter. Most of us are more easily distracted (分心) between noon and 4 pm. Alertness also tends to fall after eating a meal and sleepiness tends to peak around 2 pm, making that a good time for a nap.

Surprisingly, tiredness may increase our creative powers. For most adults, problems that require open-ended thinking are often best dealt with in the evening when they are tired, according to a study in the journal Thinking & Reasoning. When choosing a time of the day to exercise, paying attention to your body clock can improve results. Physical performance is usually best from about 3 to 6 pm, says Michael Smolensky, a professor of biomedical engineering.

Of course, not everyone’s body clock is the same, making it even harder to

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synchronize natural rhythms with daily plans.

【小题1】If we know our natural body rhythm well, we can ______. A．find out the suitable time to do specific tasks B．organize our time around work demands C．do whatever our body feels like doing D．be sure to be healthy

【小题2】 Which of the following is NOT true?

A．Our alertness is influenced by our natural body rhythm.

B．Doing whatever your body feels like is very difficult in our modern society. C．Obeying our body clock is good for our health.

D．Disrupting our natural body rhythm can lead to obesity.

【小题3】Inspiration to solve a difficult problem will most probably come to us______. A．when we get up in the morning B．when we are tired in the evening

C．when we are full of energy in the late morning D．when we are asleep at night

【小题4】Which of the following can be the suitable title for the passage? A．What is natural body rhythm? B．Natural body rhythm is good for us. C．natural body rhythm and health

D．The latest research about natural body rhythm.

2016高考英语阅读练习——科普环保类

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Scientists believe that one of our most important means of knowing what is going on around us is the sense of sound. We are warned of danger by sounds. Sounds serve to please us in music. Sound has a waste product, too, in the form of noise. Noise has been called unwanted sound. Noise is growing and it may get much worse before it gets any better.

In order to know how noise affects people and animals, scientists have been studying for several years. They are surprised by what they have learned. Peace and quiet are becoming harder to find. Noise pollution is a threat that should be looked at carefully.

Sounds is measured in units called decibels (分贝). At a level of 140 decibels people feel pain in their ears.

Trucks , buses , motorcycles, airplanes, boats, factories---all these things make noise. They trouble not only our ears, but minds and bodies as well.

There is a saying that it is so noisy that you can’t hear yourself think. Doctors who study noise believe that we must sometimes hear ourselves think. If we don’t, we may have headaches, other aches and pains, or even worse mental problems. Noise adds more tension (紧张) to a society that has already faced enough stress. 【小题1】The sense of sound _________. A．makes us feel excited B．helps us hear more clearly C．is something harmful to us

D．helps to know what is happening around us

【小题2】When sound is turned into noise, ______________. A．people grow worse and worse B．it makes us forget all the past

C．people don’t know what to do with everyday life D．it will be a kind of pollution to people

【小题3】Why does the passage say peace and quiet are becoming harder to find? A．Because the world is making more and more noise.

B．Because wars and battles happen here and there in the world.

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