20．We often find that weekends and holidays feel so short while classes and work feel so long．Actually，though，we know that this is not true．But we still wonder where that strange feeling comes from．
In fact，this is one of the ways that we're tricked by time，according to the website All That Is Interesting．The website lists several wrong impressions we often have about time．Let's have a look．
First of all，emotions affect our time-keeping abilities．Negative emotions，especially anxiety and boredom，make time seem longer because they make us concentrate more on the passage of time．However，when we are enjoying ourselves，we pay more attention to what we are doing and are likely to lose track of （失去對…的意識） time．
Here is another example．In 2007，a group of scientists carried out a test．In the test，people fell 50meters into a safety net and were then asked about their experience．Although the experience took shorter than 3seconds，the people thought it was much longer than it actually was．
This is because of the way our bodies reply to danger，according to the scientists．Our bodies produce a chemical called adrenaline （ 腎 上 腺 素 ） when we are faced with danger．It allows us to concentrate better so that we can stay alive．As a result，we are able to remember far more details （ 細 節(jié) ）over a short period of time，which makes it seem like time is going more slowly．
Another situation when we make mistakes about time is when we take afternoon naps （午覺）．Have you ever had trouble telling what time it is after a long nap？That's because the best amount of time for a nap is 20minutes．After 20minutes，you enter a new stage of sleep called slow-wave sleep．If you wake up mid-way in this stage，it will take a while before you can correctly perceive （感知） time again．
Yes，time can be mysterious and there is no way to control it．So，perhaps the best thing to do is to make good use of every minute．
56． According to the passage，what possibly makes people feel so long？C
A．weekends and holidays
B．weekends and work
C．classes and work
D．holidays and work
57． Which is NOT the wrong impressions that we often have about time according to the the website listing？C
A．negative emotions
B．positive emotions
C．a(chǎn)drenaline
D．scientists
58．According to the passage，in which situation do we make mistakes about time？A
A．We have many problems left in the test paper，but the time is up．
B．We have a math test when we fall down from a high place．
C．We may have trouble telling what time it is after a long nap．
D．We go to school on the school bus as usual on weekdays．
59．According to the passage，what will NOT happen when we are faced with danger？D
A．Our bodies will produce a chemical called adrenaline．
B．We are able to feel that time seems to go more slowly．
C．Adrenaline will make us concentrate better to stay alive．
D．We will forget far more details over a short period of time．
60．Which of the following statements is NOT true according to the passage？B
A．Negative emotions，especially anxiety and boredom，make time seem longer because they make us concentrate more on the passage of time．
B．When we are enjoying ourselves，we pay more attention to what we are doing and we are able to feel like time is going more slowly．
C．If we wake up mid-way after a long nap，it will take a while before we can correctly perceive time again．
D．Time can be mysterious and there is no way to control it．So，perhaps the best thing to do is to make good use of every minute．
分析 文章大意：這是一篇說明文，文章主要講述了我們經(jīng)常發(fā)現(xiàn)周末和假期感覺時間總是很短，然而上課和工作時，總會感覺時間很長．是什么原因讓我們會有不同的感覺呢？短文在接下來進行了詳細的解釋．最后作者提出，時間可能是神秘的，我們是沒有辦法控制它，也許最好的辦法是利用好每一分鐘．
解答 56．答案：C．細節(jié)理解題．問題：依據(jù)短文，什么可能使人們感覺到時間如此的長？根據(jù)第一句：We often find that weekends and holidys feel so short while classes and work feel so long．我們經(jīng)常發(fā)現(xiàn)周末和假期的時間很短，然而上課和工作的時間使人感覺很長．可知，是上課和工作．故選C．
57．答案：C．細節(jié)理解題．問題：通過網(wǎng)絡(luò)的清單中，我們經(jīng)常會對時間產(chǎn)生錯覺，下列哪一項不在其中？根據(jù)第五段第一行Our bodies produce a chemical called adrenaline（腎上腺素） when we are faced with danger．當(dāng)我們面對危險的時候，我們的身體產(chǎn)生一種叫做腎上腺素．因此說明"腎上腺素"不是我們的錯覺．故選C．
58．答案：A．細節(jié)理解題．問題：依據(jù)短文，在哪一種環(huán)境下，我們會產(chǎn)生對時間的錯誤判斷？結(jié)合選項：第一項：我們還有許多難題沒有做，但是，時間到了．（由于還有題沒有做完，導(dǎo)致緊張，感覺時間很短．）； 第二項：當(dāng)我們從一個很高的地方掉下來，有一個數(shù)學(xué)考試．（兩者沒有任何關(guān)系）；第三項：一個長時間的睡眼之后，我們可能講述時間有困難．（描述中沒有對時間產(chǎn)生錯覺）；第四項：在工作日，我們像工作日一樣乘公交車去上學(xué)．（沒有體現(xiàn)出對時間長短的錯誤判斷）．故選A．
59．答案：D．細節(jié)理解題．問題：依據(jù)短文，當(dāng)我們面對危險的時候，什么將不會發(fā)生？結(jié)合第五自然段第一行It allows us to concentrate better so that we can stay alive．As a result，we are able to remember far more details（節(jié)）over a short period of time，which makes it seem like time is going more slowly．當(dāng)我們面對危險的時候，我們身體會產(chǎn)生腎上腺素，做為結(jié)果，我們可能會記住許多的細節(jié)，同時我們會感到時間很慢．通過短文的分析，只有第四項"我們會在很短的時間內(nèi)忘記更多的細節(jié)．"不正確．故選D．
60．答案：B．細節(jié)理解題．問題：依據(jù)短文，下列描述哪一項不正確？根據(jù)第三段第二行when we are enjoying ourselves，we pay more attention to what we are doing and arelikely to lose track of（失去對…的意識）time．句意：當(dāng)我們很開心的時候，我們更加關(guān)注我們正在做什么而且沒有注意時間，因此感覺時過得很快．明確第二項"當(dāng)我們很開心的時候，我們更加關(guān)注我們正在做什么而且沒有注意時間，因此感覺時間越走越慢"不正確．故選B．
點評 閱讀題型，要注重句子與句子之間、段落與段落之間邏輯關(guān)系以及對篇章的整體理解．根據(jù)所給問題選擇正確選項完成試題．
