2．Raymond Wang.17.of Canada was awarded first place for a device that improves air quality on airpla——青夏教育精英家教网——

2．Raymond Wang，17，of Canada was awarded first place for a device that improves air quality on airplanes while cutting down the spreading of diseases at this year's Intel International Science and Engineering Fair （ISEF）．
According to Intel，Wang's system improves the quality of fresh air in a plane cabin by more than 190 per cent，while cutting diseases by up to 55 times，compared to conventional designs．Intel noted that Wang's invention could be easily and economically fixed into existing airplanes．
Two other teen researchers earned awards of﹩50，000 each at the event．One developed a technique to more quickly diagnose diseases caused by HIV．It's the virus responsible for AIDS．The other invented a device to more quickly shut down undersea oil spills．
"Intel believes young people are the key to future innovation and that in order to confront the global challenges of tomorrow，we need students from all backgrounds to get involved in science，technology and engineering，"says Wendy Hawkins，executive director of the Intel Foundation．"We hope these winners will inspire other young people to pursue their interest in these fields，"she says，"and apply their curiosity and creativity to the common good．"
This year's Intel International Science and Engineering Fair featured approximately 1，700 young scientists selected from more than 75 countries and regions．In addition to the top winners，600 finalists received awards and prizes for their innovative research．
The Intel International Science and Engineering Fair honours the world's most promising student scientists，inventors and engineers．Their projects are then evaluated online by nearly 1，000 judges from almost every scientific field．
The 2015 Intel ISEF is funded jointly by Intel and the Intel Foundation with additional awards and support from dozens of other academic，governmental and scientific organizations．This year，US﹩4 million was awarded．

25．Compared to traditional designs，Raymond Wang's systemB．
A．prevents oceans from oil pollution quickly
B．improves air quality on airplanes effectively
C．treats diseases happening on airplanes quickly
D．costs more but can be easily fixed into airplanes
26．For what purpose is Intel ISEF carried out？D
A．To inspire teenagers to challenge the authorities．
B．To persuade more teens to do good to the society．
C．To get more teens involved in computer exploring．
D．To encourage young people to get interested in science．
27．What do we know about 2015Intel ISEF？A
A．More than 30% of finalists receive awards and prizes．
B．Scientists all over the world compete for grand prizes．
C．Nearly 1000judges are present at the site of competition．
D．US4millionawardsandprizesareofferedbyIntelalone．

1．Most people today think of sleep as one continuous period of downtime．This is not the way people used to sleep．According to researchers，in earlier times，people divided sleep by first sleeping a few hours，waking up，then going back to sleep．In the first period，you would typically sleep until midnight or shortly afterwards．Halfway through the night，you came out of first sleep，you would stay in bed and relax quietly．It was called the watching period．Then you would start to feel sleepy．so would return to bed and tall asleep again for your second sleep．This period would continue until early morning when daylight arrived．With no artificial lighting in homes，people naturally woke up early to take advantage of sunlight．
Before the 18th century，people had no gas or electricity in their homes．Fire，candles，or oil lamps were the common forms of lighting．This lack of artificial lighting in homes contributed to people's sleep patterns．It made sense for people to go to bed early．
Today，human may consider divided sleep a strange habit，but sleep researchers say that it is actually a more natural sleep pattern．Dr．Thomas Wehr of the U．S．National Institute of Mental Health has studied human sleep．He thinks that modern sleep problems occur because the older，natural way of sleep is breaking through the more recent continuous sleep pattern．Wehr and other scientists believe that artificial lighting has altered the way people sleep．In a research study，he asked 15adults to rest and sleep in darkness for 14hours（from 6：00P．M．to 8：00A．M．）．At first，the subjects took a few hours to get to sleep，and then slept 11hours a night．Then overtime，they switched to divided sleep．They fell asleep for about three to five hours in the evening，stay awake for an hour or two，and then slept again for four hours till early morning．
We modern humans generally do not practice divided sleep．However，many of us have the experience of waking up in the middle of the night．We usually consider this a sleeping"problem"．but perhaps we should look at it as natural behavior．Divided sleep may be the way we should all be sleeping．A first sleep followed by a relaxation period and a second period of sleep could help all of us to beat the stress of our fast-paced lives．

32．According to the first paragraph，we know the people in the pastB．
A．did not sleep as well as people today
B．divided their sleep into two parts
C．woke up and went out during the night
D．fell asleep easily because of hard work
33．In Paragraph 3，what does the research study suggest？C
A．Divided sleep is a strange way to sleep．
B．Divided sleep means sleeping 11hours in one period．
C．Divided sleep is a natural sleep pattern for humans．
D．Divided sleep occurs when people sleep with artificial lights．
34．Which of the following is NOT true according to the text？A
A．People had a divided sleep pattern only in the 18th century．
B．It may be natural to wake up in the middle of the night．
C．Scientists agree that artificial lighting has changed the way people sleep．
D．Some of the people today are not familiar with the practice of divided sleep．
35．What conclusion does the author make about divided sleep？D
A．It is one type of sleeping problems．
B．It is not the best sleep pattern for everyone．
C．It shouldn't be accepted by modern humans．
D．It could be helpful for people to handle daily stress．

17．________ to work in an international company，he felt it both stressful and challenging．（　　）

	A．	Being appointed		B．	To be appointed
	C．	Having appointed		D．	Appointed

16．Three Little Pigs is a fairy story ________ a lesson is taught-diligence makes a difference．（　　）

15．We all know clearly the immediate future，________，however，it is hard to tell what lies．（　　）

14．Friends play an important part in our lives，and although we may take friendship for granted，we often don't clearly understand how we make friends．While we get on well with a number of people，we are usually friends with only a very few．For example，the average among students is about 6 per person．In all the cases of friendly relationships，two people like one another and enjoy being together，but beyond that，the degree of closeness between them and the reasons for their shared interests vary greatly．As we get to know people we take into account things like age，race，economic condition，social position，and intelligence．Although these factors are not of prime importance，it is more difficult to get on with people when there is a marked difference in age and background．
Some friendly relationships can be kept on argument and discussion，but it is usual for close friends to have similar ideas and beliefs，to have attitudes and interests in common-they often talk about"being on the same wave length"．It generally takes time to reach this point．And the more closely involved people become，the more they rely on one another．People want to do friends favors and hate to break a promise．Equally，friends have to learn to put up with annoying habits and to tolerate differences of opinion．
In contrast with the marriage，there are no friendship ceremonies to strengthen the association between two people．But the supporting and understanding of each other that results from shared experiences and emotions does seem to create a powerful bond，which can overcome differences in background，and break down barriers of age，class or race．
32．How does the author understand"friends"in this passage？D
A．Every student has 6friends．
B．Everyone understands clearly how to make friends．
C．All the people who get on well with each other are friends．
D．Friends are closer than those just getting on well with each other．
33．What should we avoid when making friends？D
A．Good economic condition．
B．Argument and discussion．
C．The same race，hobby and nationality．
D．A marked difference in age and background．
34．What do the underlined words"being on the wavelength"mean in Paragraph 2？C
A．Having the same background．
B．Using the same frequency while talking．
C．Having similar ideas，beliefs，attitudes and interests．
D．Keeping the same friendly relationship as other people do．
35．How do people strengthen friendly relationship according to the passage？D
A．To hold friendship ceremonies．
B．To completely get rid of differences in background．
C．To make friends with those who are of the same age and of the same race．
D．To support and understand each other by sharing experiences and emotions．

13．Friends play an important part in our lives，and although we may take friendship for granted，we often don't clearly understand how we make friends．While we get on well with a number of people，we are usually friends with only a very few．For example，the average among students is about 6per person．In all the cases of friendly relationships，two people like one another and enjoy being together，but beyond that，the degree of closeness between them and the reasons for their shared interests vary greatly．As we get to know people we take into account things like age，race，economic condition，social position，and intelligence．Although these factors are not of prime importance，it is more difficult to get on with people when there is a marked difference in age and background．
Some friendly relationships can be kept on argument and discussion，but it is usual for close friends to have similar ideas and beliefs，to have attitudes and interests in common-they often talk about"being on the same wavelength"．It generally takes time to reach this point．And the more closely involved people become，the more they rely on one another．People want to do friends favors and hate to break a promise．Equally，friends have to learn to put up with annoying habits and to tolerate differences of opinion．
In contrast with the marriage，there are no friendship ceremonies to strengthen the association between two people．But the supporting and understanding of each other that results from shared experiences and emotions does seem to create a powerful bond，which can overcome differences in background，and break down barriers of age，class or race？

32．How does the author understand"friends"in this passage？D
A．Every student has 6friends．
B．Everyone understands clearly how to make friends．
C．All the people who get on well with each other are friends．
D．Friends are closer than those just getting on well with each other．
33．What should we avoid when making friends？D
A．Good economic condition．
B．Argument and discussion．
C．The same race，hobby and nationality．
D．A marked difference in age and background．
34．What do the underlined words"being on the wavelength"mean in Paragraph 2？C
A．Having the same background．
B．Using the same frequency while talking．
C．Having similar ideas，beliefs，attitudes and interests．
D．Keeping the same friendly relationship as other people do．
35．How do people strengthen friendly relationship according to the passage？D
A．To hold friendship ceremonies．
B．To completely get rid of differences in background．
C．To make friends with those who are of the same age and of the same race．
D．To support and understand each other by sharing experiences and emotions．

12．A MENTORING（导师制）program is giving life changing opportunities to Banbury youth．Young Inspirations was founded two years ago to provide mentoring sessions for students  and unemployed young adults aged 11to 21．
Alex Goldberg，the program's founder，said："We set up Young Inspirations because we wanted to give young people experiences which will potentially be life changing and broaden  their outlook．"
"We try to create work experience opportunities that will really make a difference to our youth．For example，we've secured internships（实习）with world-famous firms such as Honda．
At a time of funding cutbacks where schools are finding it more and more difficult to offer this kind of mentoring，it is extremely important that these opportunities are available both to help youth with their school work and grades and to give them opportunities which may help shape their futures．"
Kieran Hepburn，14，is one of a group of Banbury youth who has benefited from the program so far．On October the Banbury School pupil was ac companied by Young Inspirations staff to Paris where he was an observer at the United Nations Educational，Scientific and Cultural Organization's（UNESCO） International Youth Forum（论坛）．
The event was held for young people from around the world to seek their views on how the future of youth and education should look．Kieran joined several hundred observers，mostly in their 20s and was the only UK school pupil to attend the event．Kieran thinks the trip was a life changing experience．"Before we left I didn't quite know what to make of it，but when we got there we didn't stop．It was amazing．"he said，"We went to three or four hours of debates each day and then did something cultural each afternoon．"
The main theme of the forum was how youth can drive change in political and public life．It dealt with issues such as drug abuse，violence and unemployment．
Kieran  said："It has really helped me to improve my confidence and social skills as well as my school grades and I was voted most improved pupil at school in August．"
The Young Inspirations mentoring sessions take place each Friday in Banbury．For details，visit www．younginspiratrons．com．

32．The Young Inspirations mentoring program aims toC．
A．train staff for world-famous firms
B．offer job opportunities to young adults
C．provide youth with unique experiences
D．equip the unemployed with different skills
33．Ac cording to the founder，it is difficult for schools to offer the mentoring due to theD．
A．lack of support from firms
B．cultural differences
C．effect of unemployment
D．shortage of money
34．We can learn from the passage thatB
A．the visit to the United Kingdom was amazing
B．Kieran has made great progress in many aspects
C．the youth have found a way to solve their problems
D．the mentormg sessions are held every day except Friday
35．What would be the best title for the passage？B
A．Alex Goldberg，Founder of Young Inspirations．
B．Young People Find a World of Opportunity．
C．Kieran，Banbury School Pupil to Paris．
D．Debates Help Youth with Their Grades．

11．It's second time in five days that he has asked me for higher pay．（　　）

10．This is the largest clock in the world，______ minute hand is six meters long．（　　）

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