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完形填空先通讀下面的短文，掌握其大意，然后在所給選項中，選出最佳選項。
At the beginning of this century, medical scientists made an interesting discovery: we are built not just of flesh (肌肉) and blood but also of time. They were able to show that we all have a ‘body clock’   1  us, which controls the   2  and fall of our body energies. It can   3  us different from one day to the next.
The idea of a ‘body clock’ should not be too   4  because the lives of most living things are controlled by the 24-hour night-and-day cycle (循環). We feel   5  and fall asleep at night. We become   6  and energetic during the day. Most people will have a bad feeling if the 24-hour cycle is   7 . For example, people who are not used to working at night can find that lack (缺少) of sleep causes them to 8  badly at work.
9  the daily cycle of sleeping and waking, we also have other cycle which lasts longer than one day. Most of us would   10 that we feel good on some days and not so good on others; sometimes our ideas seem to be so active and at other times, they are not.

小題1:

A．beside

B．inside

C．outside

D．under

小題2:

A．life

B．offer

C．use

D．rise

小題3:

A．show

B．treat

C．make

D．change

小題4:

A．difficult

B．natural

C．surprising

D．frightening

小題5:

A．quiet

B．tired

C．comfortable

D．cheerful

小題6:

A．regular

B．serious

C．lively

D．clear

小題7:

A．disturbed

B．pushed

C．restarted

D．troubled

小題8:

A．perform

B．suffer

C．count

D．control

小題9:

A．With

B．As well as

C．Except

D．Rather than

小題10:

A．afford

B．admire

C．advise

D．agree

小題1:B
小題2:D
小題3:C
小題4:C
小題5:B
小題6:C
小題7:A
小題8:A
小題9:B
小題10:D

試題分析：這篇短文重點描述了我們身體里面的生物鐘，以此告訴我們保持工作于休息平衡的重要性。
小題1:介詞辨析。A.在……旁邊；B.在……里邊；C.在……外邊；D. 在……下面。結合語境可知此處指的是生物鐘在身體里邊，故選B。
小題2:聯系下文and fall of our body ，可知此處指的是控制我們身體能量的升降，故選D，升起。
小題3:動詞辨析。A. 顯示；B.對待；C. 使得，讓；D. 改變。結合語境可知他能使我們今天和明天有所不同。故選C。
小題4:形容詞辨析。A. 困難的；B. 自然的；C.令人吃驚的；D.嚇人的；聯系下文描述，可知此處指的是關于生物鐘的思想不應該太令人吃驚，故選C。
小題5:聯系下文描述，可知此處指的是我們感到勞累，故選B，勞累的。
小題6:聯系下文描述，可知此處指的是我們在白天變得充滿活力，故選C，生動的，充滿活力的。
小題7:聯系下文描述，可知此處指的是生物鐘受到妨礙，打亂。故選A，擾亂。
小題8:動詞辨析。A. 執行，完成；B. 經受，遭受；C. 計算，認為；D. 控制。聯系下文可知指的是工作完成的很差。故選A。
小題9:連詞辨析。A. 帶有，伴隨；B. 和……一樣；C. 除了；D. 而不是，寧可……也不愿。聯系下文可知此處指的是和睡眠與醒來的周期一樣，我們也有持續超過一天的其它周期。故選B。
小題10:動詞辨析。A.提供，買得起；B.欽佩，贊美；C.建議；D. 同意，承認。聯系上下文可知句意為：我們大部分人必須得承認，我們有時候感覺好點，其它時間感覺差點。故選D。
點評：這篇短文內容比較簡單，理解不難。各小題與上下文聯系比較緊密，答題中一定要注意聯系上下文。答完后多讀幾遍，看看是否符合邏輯，適當修改。個別小題可以當作單獨的詞義辨析題來做，先區分詞義，結合語境選出最能使語句通順的答案。

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