Nowadays.more and more students choose to take a gap year．That is.they take a yearoffbetween the ending of high school and the beginning of university．题目和参考答案——青夏教育精英家教网—

题目内容

5．Nowadays，more and more students choose to take a gap year．That is，they take a yearoffbetween the ending of high school and the beginning of university．

分析现在，越来越多的学生选择休学一年，也就是说他们在高中结束和大学开始之间修一年的假．

解答答案是off．考查词组take off，是固定搭配，表示离开，休假．题干表达的是"也就是说他们在高中结束和大学开始之间修一年的假"，故答案是off．

点评解答此类题目，首先需要明确句意，确定考查的词组及固定搭配，然后根据相关语法填写正确的答案．

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16．A Good Night's Sleep
Sleep plays a vital role in good health and well-being throughout your life．While you're sleeping，your brain is forming new pathways to help you learn and remember information．Although we all know the importance of getting a good night's sleep，not all of us know the best way of getting it．A sleep expert，Phil Atherton，gave some top tips for getting the most out of the night，which will leave you ready for action in the morning．
According to Phil Atherton，not eating a large meal before bedtime is important for getting a good night's sleep．The time difference between eating and sleeping should be at least three hours．So you'd better avoid eating any food three hours before bed，as it will lower your blood sugar during sleep and help minimize damage from too much sugar floating around．
It's also important to find ways to prepare your body for sleep．You can follow a routine like trying not to expose yourself to too much artificial light within 1hour before bed，as your brain uses light to help set internal"body clock"．Although it might seem unnatural to schedule your sleep，the purpose is to send a signal to your body and mind that it's time to sleep．
Another way to prepare your body for sleep is to get into a relaxed state by taking a bath or listening to soft music．Both of them will help to take the mind off the daytime pressures．
Having a suitable bed，especially a suitable mattress （床垫），is necessary for a good night's sleep．Sleep is a personalized activity，and we all adopt different sleeping positions．Finding the mattress that suits you will reduce back pains that can result from a poor sleeping position．The bed should be four to six inches longer than its tallest user，allowing for space to move around．
The recent research is pretty clear that a good night's sleep in a major component of good health．Since the start of the 21st century，studies have linked a lack of sleep to many diseases，such as diabetes and obesity．Taking action now will lead to long-term benefits for you and those around you．
28．What does the author intend to tell us in the passage？B
A．When to start a sound sleep．
B．How to get a good night's sleep．
C．What to do with sleep problems．
D．Why to form a good habit of sleeping．
29．According to the author，before going to sleep，you'd betterD．
A．record your biological clock　　
B．check your blood sugar
C．relieve your pain in the back 　
D．free yourself from tension
30．What does the underlined word"it"in Paragraph 2refer to？A
A．Not eating food．
B．Taking a meal．
C．Not eating a large meal．
D．Having a good sleep．
31．Which of the following shows the organization of the passage？C

CP：Central Point P：Point Sp：Sub-point （次要点） C：Conclusion．

13．His trip to India made a strong impression on him．

20．Now their peace talks have reached a key stagewhereone side must give in to the other．

3．The filmthrilled（使胆战心惊） all the audience．

10．The truth（41）thattrees are vital to our life is not a secret．They provide us with food，wood and most （42）importantly（important），oxygen．Now there is one more thing we can add to this list-blocking out harmful bacteria from water．
The discovery（43）was made（make） by a team （44）consisting（consist） of scientists from the Massachusetts Institute of Technology （MIT） and high school students（45）who were seeking a natural water filter-one that would help communities in developing countries that do not have （46）acess（accessible） to modern water filter systems．
The（47）researchers（research），led by Professor Rohit Karnik，decided to turn to trees for help because they could allow liquid to flow through，while blocking out air bubbles．
They began by cutting 1.5-inch-wide sections of tree bark from the branches of a white pine tree．The people related then tested the wood's filtering ability by pouring water containing red dye particles of different sizes through．（48）Totheir amazement，they found that it was effective in trapping all the articles．（49）Encouraged（encourage），the team conducted（50）anotherexperiment，this time with water that contained bacteria．Sure enough，the sapwood held back 99% of the bacteria，allowing only 1% to flow through．

7．Honeybees are disappearing for unknown reasons around the United States．Last winter，bees disappeared from 23percent of American beekeeping businesses．Causes of the phenomenon，however，have remained a mystery．
Now，scientists from several universities and the United States Department of Agriculture say they have a possible explanation for the bee decline．It is a little-known virus called Israeli acute--paralysis virus （IAPV）．The virus kills bees．Researchers in Israel first described it in 2004，but until now，bee experts haven't paid much attention to it．
When trying to find out why the bees were disappearing，a research team at Columbia University studied bee colonies （群体），some with and the others without decline．The research turned up large numbers of two types of fungi （真菌） once suspected of causing the bee decline．The research results，however，showed that the fungi were almost as common in colonies without a decline as they were in colonies with a decline．The researchers concluded that the two fungi probably weren't the cause．
Studies of the presence of IAPV，however，showed more interesting information．In those studies，done by a team at Pennsylvania State University in University Park，the virus showed up in 83percent of samples from colonies with symptoms （症状）．Only five percent of samples from symptomless colonies had it．
Scientists still don't know whether IAPIV can single--handedly cause the bee decline．They believe that even if the virus is making colonies sick，it could have a partner in crime．It's possible，for instance，that insects or chemicals in the environment weaken bees，making them more likely to catch IAPV．
Scientists are still trying to figure out how IAPV came to the United States．The United States currently allows bee products to be imported from Canada，Australia，and New Zealand．If it turns out that this trade is spreading disease，the rules might eventually change．

46．According to the passage，IAPV is a virus thatA．
A．hasn't attracted much attention
B．well-known to doctors and scientists
C．was first found by Austrian researchers
D．is dangerous to animals and human beings
47．The underlined word decline in the second paragraph most probably meansB．
A．disease B．decrease C．secret D．growth
48．From the third and fourth paragraphs，we know researchers draw their conclusions by means ofC．
A．calculating B．examining C．comparing D．investigating
49．The underlined sentence in the fifth paragraph probably meansC．
A．the virus could also cause other damages
B．there must be something that is the real cause
C．IAPV is not the only cause for the bee decline
D．the virus may be caused by the polluted environment
50．What still remains unknown to American scientists according to the passage？D
A．How and why to kill IAPV．
B．How to change the rules of the bee products trade．
C．Whether bee products should be imported．
D．How IAPV came to America．

8．It's of great importance to help strengthen the communication between the younger generations on both sides of the straits（海峡）．

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