4．Eggs.meat.vegetables and other foods can easily be poisoned by microorganisms such as ．( )A．——青夏教育精英家教网—

Mapping Antarctica
Antarctica was on the map long before anyone ever laid eyes on it．Nearly 2，400years ago，ancient Greek philosophers such as Aristotle believed that a great continent must exist at the bottom of the world．They thought it was needed to balance out the continents at the top of the world．In the 1500s，mapmakers often included a fanciful continent they referred to as Terra Incognita （Latin for"unknown land"） at the bottom of their maps．But it was not until the 1800s----after explorers had sighted and set foot on Antarctica----that mapmakers got down to the business of really mapping the continent，which is one-and-a-half times the size of the U．S．．
While the coastline could be mapped by ships sailing around the continent，it took airplanes----and later，satellites----to chart Antarctica's vast interior （内陆）．That job continues today．And it is a job that can still require a mapmaker，or cartographer，to put on boots and head out into the wild．
Cole Kelleher is familiar with that．He is a cartographer with the Polar Geospatial Center （PGC），which is based at the University of Minnesota and has a staff at McMurdo Station．PGC teamed up with Google to use the company's Trekker technology to capture images of Antarctica for the Internet giant's popular feature，Street View．A Trekker camera，which is the size of a basketball，is set about two feet above a backpack．The camera records images in all directions．"It weighs about 50pounds．I was out for two and a half days，hiking 10to 12hours each day，"says Kelleher．It was hard work，but really an incredible experience．"According to Kelleher there are plans to use the technology to create educational apps for museums．

The PGC staff at McMurdo Station provides highly specialized mapmaking services for the U．S．Antarctic Program．For one project，Kelleher used satellite images to map huge cracks in the ice．That helped a team of researchers know whether they could safely approach their field camp on snowmobiles．Another recent project was to help recover a giant，high-tech helium （氦气） balloon used to carry scientific instruments high into the atmosphere．These balloons are launched in Antarctica because there is no danger that they will hurt anyone when they fall back down to Earth．Using satellite images，Kelleher and colleagues created maps of where the balloon could be found．
Antarctica may no longer be Terra Incognita，but it still holds countless mysteries．Cartographers and the maps they make will continue to be essential in helping scientists unlock those secrets．

74．From the passage，we can infer that Antarctic was on the map in the 1500s whenC．
A．mapmakers knew it was much larger than the U．S．
B．Aristotle named the continent Terra Incognita
C．no one had ever seen or been to the continent
D．it was such an interesting continent as was often referred to
75．Which of the following statements is NOT true according to the passage？B
A．It needs much work for the mapmakers to head out into the wild．
B．The interior can only be mapped by planes and satellites．
C．It is relatively easy to map Antarctica's coastline by ships．
D．Antarctic is a vast but still mysterious continent．
76．The Polar Geospatial Center （PGC） works with Google initiallyA．
A．to capture images of Antarctica for Street View
B．to test the company's Trekker technology
C．to create educational apps for museums
D．to hike for an incredible experience
77．The fourth paragraph mainly talks aboutD．
A．satellite images which are used to map huge cracks in the ice
B．a high-tech helium balloon for carrying scientific instruments
C．how to safely approach the researchers'field camp and the balloon
D．the specialized mapmaking services provided by the PGC staff．

2．Without any previous notice，a documentary dominated headlines and social websites over the weekend．
Under the Dome，a 103-minute documentary （33）self-funded（self-fund） by former news anchor Chai Jing，（34）was releaseed（release） in China on Feb 28．It has rapidly pushed the public awareness about air pollution and encouraged people to join in（35）aneffort to make a difference．
Chai，39，said she started the work out of her"personal clashes"with smog after she gave birth to a daughter．"I sealed tight all the windows．I started every day by checking the air pollution index，"Chai said．Millions of other people are doing the same．While they stop there，Chai goes much （36）deeper（deep）．"I don't want to live in this way．I need to find out where the smog comes from and what on earth is going on"
Chai's research reveals that it is the burning of coal and oil （37）thatcontributes to 60percent of PM2.5pollutants．She then goes on to disclose loopholes in car emissions regulations．Some of the laws have been in place for years，（38）but have never been applied．The film also explains that businesses are pressured not to obey the law because violating them carries little or no cost，while making changes pushes up costs．The film also points at China's petroleum and steel industries （39）asthe biggest sources of air pollution．
Chai goes on to list the things ordinary people can do （40）to help（help） and sums everything up by calling for individual responsibility in reporting illegal emissions via the hotline 12369．

1．Positive thinking can help you win．
Some athletes can reach great goals such as the achievement of an Olympic gold medal．Others never live up to their promise．What kind of preparation before （25）a race or other event makes the difference？
Everyone knows that athletes spare no effort （26）to strengthen （strengthen） their bodies．But researches show that strengthening the mind may be just as important．Careful study indicates that the best athletes win partly （27）because they think they can win．
Thinking positive thoughts seems to give the possibility for success in sports．People who say to themselves over and over"I know I （28）can do this．"often find they have the advantage to win．On the other hand，people often fail who think"I can't win．"
One procedure （29）which/that helps many athletes is creating pictures in the mind．They are told to think of each move they must do．Some use more fanciful pictures．One skater liked to imagine a star bursting inside her，（30）filling（fill） her with energy．Another athlete who wanted to feel calm pictured himself as a bird floating in the air．
Next time you want to make progress，try training your mind to help you．Perhaps a teacher or other instructor can help you plan your training．If you imagine yourself doing （31）better （well），you may soon see improvement in （32）what you really can do．Positive thinking and pictures created in your mind can help you win!

18．A notice will be put up_____ information about the closing dates for entering exams．（　　）

17．Animal's findings
New research shows that sheep are clever
People often make jokes about how dull sheep are，but new research shows they may be cleverer than we think．Researchers at the University of Cambridge discovered that Welsh mountain sheep have brainpower that equals rodents （啮齿动物）．Tests found that the sheep can map the area they live in，and some may even be able to plan ahead．
Young fish prefer noisy neighbors
A new study has shown that young fish like to live on reefs with noisy neighbors!Researchers from the universities of Auckland and Bristol found that young fish looking for a home choose areas where other noisy fish live．The scientists produced all kinds of sounds which had been recorded in different natural environments．The young fish seemed to prefer the sounds of natural reefs，complete with noisy animals!The scientists compared the choice to a music fan wandering around at a music festival，choosing to set up a tent closest to the music they like best!
Butterflies are disappearing
A new study has shown that 17 species of butterflies found in Europe have dropped by 70% in the last 20years．The information collected from 3，000sites across 15countries shows it may be caused by the loss of grasslands covered with flowers．You can encourage butterflies to come into your garden by planting flowers．
21．According to the first paragraph，we may infer that sheepB．
A．are less clever than rodents
B．can find their home
C．can read maps
D．are good planners
22．When young fish are looking for a home，they like toA．
A．live in a noisy environment
B．live in areas close to their parents
C．choose the reefs which are quiet
D．choose other kinds of fish as neighbors
23．Which seems to have to do with the number of butterflies？C
A．The species of grass in grasslands．
B．The species of trees in grasslands．
C．The number of flowers in grasslands．
D．The number of animals in grasslands．

16．Shanghai Children Prove Money Smarts
Shanghai，the financial center of China，sure has raised some money-savvy children．
Ninety-two percent of Shanghai primary school students who took a recent test of their money smarts showed an understanding of financial management，and some even knew a thing or two about stocks （股票） and debts．
The FQ，or Financial Quotient test was conducted on Monday at three primary schools．It was designed to measure the students'ability to handle money，their understanding of spending and saving，and their knowledge of family finances and investment （投资）．
One 8-year-old could identify six ways to make money-including investing in the stock and real estate （房地产） markets，selling old toys and getting good grades，said Xu Ting，head of the FQ Lab at Ant Fortune，the mobile financing platform of Alibaba Group Holding．
The students scored 73percent on average，surpassing the organizer's expectations about what children might be expected to understand about money management，Xu said．Twenty-six percent of the 200test takers，who were aged 8to 11，scored over 80points，and only 8percent notched under 60．
Asked about managing a New Year's money gift，61percent of the students said they would deposit the money in the bank，while 31percent said they would give it to their parents for investment．One student said he would lend the money to relatives to buy property-and charge interest．
Not all of the students who were tested had received financial education，although it is studied at the primary school affiliated （附属的） with the University of Shanghai for Science and Technology．Money education there is made into classes to teach students responsibility，teacher Xue Lei said．
"It's mostly to help the students to manage their pocket money，"Xue said．
Lao Kaisheng，a professor of education at Capital Normal University，shrugged off （耸肩表示蔑视） the test as more commercial than scientific．But it's clear that modern parents are conscious of money management and want their children to spend-and save-wisely．

63．The recent tests showed thatC．
A．Shanghai students pay off their own debts
B．Shanghai students focus too much on money
C．most Shanghai students are conscious of money
D．some Shanghai students take part in family investments
64．During the FQ test，the researcher measuredD．
A．how much Shanghai parents invest for their children
B．how much pocket money Shanghai children get every year
C．where Shanghai Children gain the knowledge of family finances
D．what Shanghai students know about making and managing money
65．What does the underlined word notched in paragragh 5mean？A
A．scoredB．lostC．won D．recovered
66．According to teacher Xue，financial education helps studentsD．
A．become more social
B．become more creative
C．become more confident
D．become more responsible．

15．Hiking and fast-paced walking are great ways （61）to lose （lose） weight and to improve cardiovascular fitness．Get out in （62）the sunshine and quicken the pace．
Start with 10minutes and gradually increase your time．Make your （63）daily （day） goal 30minutes of fast-paced walking．Walk （64）at your normal walking pace for five minutes before picking up speed．This gets your breathing and heart rate up before starting an aerobic walking workout．After your workout，take five minutes to gradually return to your normal walking pace．This （65）will allow （allow） your heart rate and blood pressure to stabilize．
It usually takes （66）longer （long） to go hiking than fast-paced walking．Each step you take in Hiking requires （67）watching/to be watched （watch）．Don't race against others，but you can gradually pick up speed as you familiarize （68）yourself/yourselves with the trail．The challenge of hillside fields will cause your heart rate to increase．Take your time．（69）If/Whenyour uphill climb gets difficult and you're breathing hard，stop and enjoy the views．Hiking alone is never a good idea．Take a friend，a （70）reliable （rely） adult and your cellphone．

14．Get a Thorough Understanding of Oneself
In all one's life time it is oneself that one spends the most time being with or dealing with．（36）D
When you are going upwards in life you tend to overestimate yourself．It seems that everything you seek for is within your reach．（37）F It's likely that you think it wise for yourself to stay away from the outer world．Actually，to get a thorough understanding of oneself，you may as well keep the following tips in mind．
Gain a correct view of oneself．
You may look forward hopefully to the future but be sure not to expect too much，for dreams can never be fully realized．You may be courageous to meet challenges but it should be clear to you where to direct your efforts．（38）G
Self-appreciate．
Whether you compare yourself to a towering tree or a blade of grass，a high mountain or a small stone，you represent a state of nature．（39）A If you earnestly admire yourself you'll have a real sense of self-appreciation．
（40）B
In time of anger，do yourself a favor by releasing it in a quiet place so that you won't be hurt by its flames； in time of sadness，do yourself a favor by sharing it with your friends so as to change a bad mood into a cheerful one； in time of tiredness，do yourself a favor by getting a good sleep．
Get a full control of one's life
Then one will find one's life full of color and favor．

A．It has its own value．
B．Do oneself a favor when it's needed．
C．Do yourself a favor when you resist the attack of illness．
D．But it is precisely oneself that one has the least understanding of．
E．Especially if it is well within your reach，you are just too blind to see it．
F．When you are going downhill you tend to underestimate yourself for your own incompetence．
G．So long as you have a perfect knowledge of yourself，there won't be difficulties you can't overcome．

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