Question

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

The reality，however，is that most of us organize their time around work demands，school deadlines，commuting or social events．Doing whatever your body feels like doing is a luxury in today's fast-paced modem 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（認知的）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 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 synchronize natural rhythms with daily plans．

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

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 modem society．

C．Obeying our body clock is good for our health．

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

3.According to Steve Key，which of the following is NOT true?

A．When our body clock synchronizes the rhythms of its natural processes，we can do better．

B．When it comes to cognitive（認知的）work，most people perform best in the late morning．

C．As body temperature rises before awakening in the morning，our concentration gradually improves．

D．We concentrate better in the late morning than between noon and 4 pm．

4.Inspiration（靈感）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

5.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．Something about natural body rhythm．

D．The latest research about natural body rhythm．

 

Answer 1

1.A

2.D

3.B

4.B

5.C

【解析】

試題分析: 人體生物鐘的存在對我們來說有著極重要的意義，如果外界環(huán)境變化干擾了時鐘的正常運轉(zhuǎn)，造成了人體器官內(nèi)部節(jié)奏的紊亂，會引起某些疾��；而如果能夠合理利用生物鐘的規(guī)律人們就能高效地完成某些任務(wù)。

1.。細節(jié)理解題。從文章首段Paying attention to it can help us choose the suitable time of day when we best perform specific tasks可知答案選A。

2.。細節(jié)理解題。根據(jù)文章第二段Disrupting our natural body rhythm，on the other hand，has been linked to problems such as depression，obesity，or headache，可知打亂人體自然的生物鐘可能會導(dǎo)致抑郁，肥胖等問題，故答案選D。

3.。細節(jié)理解題。根據(jù)文章第四段內(nèi)容According to him，when it comes to cognitive（認知的）work，most adults perform best in the late morning．可知研究人員認為大多數(shù)成年人在上午的晚些時候從事認知性工作時表現(xiàn)會更佳，故B選項內(nèi)容錯誤。

4.。細節(jié)理解題。從文章倒數(shù)第三段內(nèi)容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可知靈感往往在人們疲倦的下午或傍晚出現(xiàn)，故答案選B。

5.。主旨大意題。文章開頭提出人們要注意人體的生物鐘以便能更好的選對我們做某些特殊工作的最佳時間，然后在下文對此進行詳細講述，由此判斷文章中心內(nèi)容就是關(guān)于生物鐘的，故C選項內(nèi)容更能體現(xiàn)文章中心，答案選C。

考點：考查社會知識類短文閱讀。