题目内容

10．Many people focus on physical fitness，but few know that brain fitness is also something you can work on．In fact，you can exercise your brain as often as you work out your arms or abs--and the results can be positive and empowering．It's helpful to think of your brain as you work out a muscle．To improve your brain，you can't simply repeat the same exercises over and over．Just as lifting a two pound weight will no longer challenge you，so will repetitive exercises such as crosswords or Sudoku．Once you master easy exercises，you must move on to harder ones in order to push your brain-like your muscles-to a new level．
Scientists once believed that your mental abilities were fixed in adulthood．Now that studies on neuroplasticity have shown just the opposite，millions of people around the world have adopted the new practice of brain training．
The most popular of these brain training products is made by the San Francisco-based Lumosity，which employs a team of in-house neuroscientists with degrees from Stanford and UC Berkeley．Realizing that brains need more sophisticated programs and guidance to grow and change，Lumosity's scientists work with an experienced team of game designers．Together they've developed a fun，effective online brain training program that measures，tracks，and adapts to your progress so you'll always be challenged．Lumosity's training system and 40+games are based on well-studied tests used in clinical neuropsychology research．
In a 2013 Stanford study，a treatment group of 21 breast cancer survivors used 12 weeks of Lumosity training to work on processing speed，mental flexibility，and working memory tasks．On average，those who trained improved on tests of these abilities，compared to a group that did not train with Lumosity．There is even some first round evidence suggesting that Lumosity may be beneficial to normal，healthy adults．In a 2011 study by Lumosity and San Francisco State University researchers，13 people who did Lumosity training over 5 weeks improved on tests of brain performance compared to a group that did not train．On average，those who trained improved working memory scores by 10% and attention scores by 20%．
Training can take just a few minutes a day，but the rewards can make a difference in many aspects of life．The goal of brain training is not to improve game scores：it's to improve the underlying core abilities that those games rely on．Lumosity is one of the first and most popular brain training programs in existence．There's a small fee to use the full product，or new users can start a free trial．
66．What is the best title for the passage？A
A．Brain training can make a difference
B．Brain training-a new science．
C．Brain training can keep you fit
D．Brain training-an open online course．
67．In order to improve our brain，we canB．
A．do the same exercises day after day                      
B．challenge it with harder exercises day by day
C．work out crosswords every day                      
D．adapt to physical change
68．According to the passage，what is Lumosity？C
A．It is a team of in-house neuroscientists
B．It is a team of experienced game designers．
C．It is an online brain training program
D．It is a clinical brain training research．
69．In Paragraph 4，the writer gives so many figures toD．
A．explain the cause of Lumosity                                  
B．clarify the principle of Lumosity
C．confirm the process of Lumosity                              
D．show the effect of Lumosity
70．It seems to us that the passage is exactlyA．
A．an ad．B．a survey．C．a questionnaire．D．a quiz．

分析 本文是一个介绍Lumosity（在线的脑训练计划）的广告．文章讲述了大脑活动在人们生活的许多方面都有作用．通过日复一日的同样练习，可以提高我们的大脑．并且研究数据显示Lumosity可能对正常、健康的成年人有益．

解答 66．A 主旨大意题．根据文章内容和最后一段Training can take just a few minutes a day，but the rewards can make a difference in many aspects of life．可知这篇文章主要叙述了大脑活动在人们生活的许多方面都有作用．故选A．
67．B 细节理解题．根据第一段To improve your brain，you can't simply repeat the same exercises over and over．及该段最后一句Once you master easy exercises，you must move on to harder ones in order to push your brain-like your muscles-to a new level．可知为了提高我们的大脑，我们可以日复一日地做同样的练习．故选B．
68．C 细节理解题．根据第三段的内容可知"Lumosity"是一个在线的脑训练计划．故选C．
69．D 细节理解题．根据第四段 evidence suggesting that Lumosity may be beneficial to normal，healthy adults．可知研究数据显示Lumosity可能对正常、健康的成年人有益．故选D．
70．A 推理判断题．根据最后一段Lumosity is one of the first and most popular brain training programs in existence．There's a small fee to use the full product，or new users can start a free trial．可知这篇文章是一个广告．故选A．

点评 本文考察学生的理解推断能力以及细心程度，只要抓住文章的关键词，采用寻读的方法查找细节，就能找到正确答案．

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（36）G Make a study time and have it at the same time every day．This will help your kids to learn to schedule their day and will give them a sense of control over how they spend their time．
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Never allow your children to study in front of the television，as that will encourage passive activity． （38）E
You'll also need to help your kids find the right place to study．After you've set up a good study time for little learners，set up a good place where they can get those creative juices flowing．
（39）A Make sure there is a table or a desk and a comfortable chair． （40）C This includes helping them out with their homework sometimes and being there for them with the answers to any questions．The input you give your children during study periods will help form a bond and help make studying enjoyable．

A．Pick a place where your children can study properly
B．Hold them to the schedule they create for themselves
C．Finally，spend time wiht your kids when they're studying
D．Keep the atmosphere light and offer lots of encouragement，too
E．Instea，use TV as a treat or a reward when the homework is completed
F．Try to stop this bad habit by offerring some sort of reward
G．One of the best ways to form good study habits for your kids is to design a schedule that they keep to．
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Our ability to cope with change and disruption determines our peace，happiness and contentment in life．But how do we do that？
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31．The underlined word"pensive"in Paragraph 1 probably meansC．
A．thankful       
B．pleased       
C．unhappy       
D．shameful
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B．Mark is quite professional about his work and seldom asks for praise．
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33．What can we infer from Paragraph 2？B
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B．Life is full of unexpected changes that surprise people．
C．Life is filled with disappointments that upset people．
D．It's easy for us to cope with the relationships with people around
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A．ignore the problems in life and live happily
B．hope for the best but prepare for the worst
C．stop trying to take control of everything in life
D．follow the trend and accustom themselves to it
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A．one can take control of everything with skills and determination
B．those who are successful are able to adapt themselves to the changes
C．paying too much attention to the past is not a wise choice
D．people should spare no efforts to struggle for a brighter future．
6．The government_________ air quality in urban areas from levels one to five：excellent，fairly good，slightly polluted，poor and dangerous．（　　）
A．classifiesB．arrangesC．correspondD．divides
5．
1．Exercise
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68．The underlined phrase silver lining can be replaced withC．
A．something made of silver                   B．new information
C．good aspects                               D．long life span
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A．Appropriate medication is necessary．
B．Medication is always helpful to you．
C．Doctors suggest taking expensive medicines．
D．Drugs are unnecessary because of side-effects．
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A．glaringB．staringC．glancingD．scanning
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A．reportedB．supposedC．devotedD．adopted
1．Big cats have existed on the earth for millions of years，though scientists aren't sure exactly how long．But a new study indicates that a skull（颅骨） of a snow leopard（豹） relative that was recently unearthed is 4.4million years old．That makes it the oldest big cat fossil（化石） ever found．
A team of US and Chinese scientists unearthed the skull in Tibet．This creature is not a direct ancestor to big cats，but it is closely related to the snow leopard，study leader Jack Tseng told the Associated Press．The fossil lends evidence to the belief that big cats existed in Asia and spread out from there．
Big cats are at the top of the food chain and have few predators of their own．Big cats include snow leopards，clouded leopards，tigers and lions．Based on genetic judgements，most scientists believe they first existed in Central Asia．But previously，the oldest known big cat fossil was 3.6million years old and found in Africa．
The new fossil findings were published in the November 13 issue of the science journal Proceedings of the Royal Society B：Biological Sciences．Tseng and his team were fossil hunting in the Himalayas in 2010when they discovered some bones，including the buried cat skull．The researchers were able to determine its age by studying the surrounding rocks and soil．The skull indicates that the animal was about the size of a clouded leopard，which can grow up to 50pounds．In 2012，the team returned to unearth more cat bones．
David Polly from Indiana University told the Associated Press that the fossil is"convincingly older than the current record holder"．He added that there could be even older big cat fossils in the Tibetan plateau to uncover．

24．What does the newly unearthed skull proveA？
A．Big cats might have their origins in Asia．
B．The oldest fossil is 4.4million years old．
C．The snow leopard is the oldest big cat．
D．The skull is of big cats'direct ancestor．
25．What does the underlined word in Paragraph 3 meanB？
A．relatives．
B．enemies．
C．partners．
D．protectors
26．How do the researchers know the skull's ageD？
A．By measuring its size and forehead．
B．By examining other bones around it．
C．By studying its chemical composition．
D．By exploring the rocks and soil around it．
27．Where was"the current record holder"in the last paragraph foundB？
A．Asia．
B．Africa．
C．America．
D．Australia．
11．For most seventh graders，life doesn't get much harder than a history test．But for Grant Reed of Bellville，Ohio，it's his own current events that are so painful．"Honestly，I don't want to die，"Grant says．Last year，doctors at Nationwide Children's Hospital in Columbus found a tumor（肿瘤）in Grant's brain．They cut it out，but the surgery left him with stroke-like symptoms．Plus，he had to go through months of radiation and chemotherapy to try to stop the spread of the disease．
    Yet，through it all，Grant has shown remarkable determination，which he owes，partly，to Ohio State football．His parents，Troy and Denise，were both in the OSU marching band and fell in love during halftime of the Michigan game．His cat is named   after the team Buckeye．His wardrobe is painted scarlet（the color of the team's sportswear）．The point is，almost nothing mattered more to Grant than Ohio State  football-until he got sick，of course．
‘‘I didn't like the word cancer，"Grant says．So he decided not to use the word．Instead，the kid named his cancer Michigan and insisted everyone in his life refer to it as such，because Ohio State always beats Michigan．That was something he could understand and make it into a competition．He was going to beat this disease．
    It's now been more than a year since Grant issued that announcement．"And if you
look at his scans，"Dr．Randal Olshefski at Nationwide Children's says，"There's nothing there．There's a big space，but there's no tumor．''
"Grant is beating Michigan．And although much of it has to go to science，don't discount the semantics（语义学）．You have to do something to make it a disease you can fight．And for Grant，that was naming it Michigan．"his parents say．
    This weekend，Ohio State and Michigan will be battling like their lives depend on it．But in this house，the Reed family will be watching with a calm insight：it's just a game．
41．What's the main idea of the first paragraph？B
A．History is a difficult subject．
B．Grant suffered a serious dlsease．
C．The operation was successtul．
D．The tumor has spread all over．
42．From the second paragraph，we can infer thatA．
A．Grant was born a football fan
B．football makes a full man
C．interest is the best teacher
D．God helps those who help themselves
43．Why did Grant name his cancer Michigan？D
A．Because he dare not face it．
B．Because he doesn't want to die．
C．Because Michigan is his favorite team．
D．Because his favorite team can always beat Michigan
44．Apart from radiation and chemotherapy，Bis helping Grant beat the disease．
A．the semantics      B．his strong determination
C．the football game   D．his cat Buckeye
45．By saying that it's just a game，we can infer that the Reed familyC
A．has lost interest in the match between Ohio State and Michigan
B．believes Michigan will surely beat Ohio State this weekend
C．has a better understanding of life
D．views the match as a matter of life and death．

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