1、AA meteorite (陨石) flew fast across the sky and exploded over central Russia on Friday, raining fireballs over a vast area and causing a shock wave that smashed windows, damaged buildings and injured l,200 people.People heading to work in Chelyabinsk heard what sounded like an explosion, saw a bright
2、 light and then felt the shock wave.According to Russian space agency Roscosmos, the fireball, travelling at a speed of 30km per second, had burnt very brightly across the horizon, leaving a long white trail that could be seen as far as 200km away. Car alarms went off, thousands of windows shattered
3、 and mobile phone networks were disrupted.“I was driving to work, it was quite dark, but it suddenly became as bright as if it were day,” said Viktor Prokofiev, 36, a resident of Yekaterinburg in the Urals Mountains. “I felt like I was blinded by headlights.”The meteorite, which weighed about 20 ton
4、s and may have been made of iron, entered Earths atmosphere and broke apart 30-50km above ground, according to Russias Academy of Sciences.The energy released when it entered the Earths atmosphere was about several thousand tons, the academy said, the power of a small atomic weapon exploding.No deat
5、hs were reported, but the Emergencies Ministry said 20,000 rescue and clean-up workers were sent to the region after President Vladimir Putin told Emergencies Minister Vladimir Puchkov to ease the disruption and help the victims.The Interior Ministry said about l,200 people had been injured, at leas
6、t 200 of them children, and most from broken pieces of glass.“While events this big are rare, an impact that could cause damage and death could happen every century or so. Unfortunately there is absolutely nothing we can do to stop impacts.”51. When did the meteorite incident happen? A. At midnight.
7、B. In the early morning.C. In the late morning.D. In the evening.52. According to the text, the meteorite explosion caused _. A. some deathsB. road accidentsC. communication problemsD. building collapse53. The Russian governments response to the incident was _.A. a little slow but effectiveB. quick
8、and seriousC. cold and slow D. quick but ineffective54. It can be inferred that the loss caused by meteorites _.A. is nearly unavoidableB. happens every few yearsC. can be avoidedD. is hard to estimateBHaving a child may improve a womans memory, a new study suggests.In the study, women who were new
9、mothers scored better on tests of visuospatial memory the ability to understand and remember information about their surroundingscompared with women who didnt have children.The findings contradicts the old belief that women develop“baby brain or a decline in memory and cognitive(认知的) function, after
10、 they have kids, said study researcher Melissa Santiago, a doctoral student at Carlos Albizu University in Miami. “You dont have to feel that because you have kids, your memory isnt the same, Santiago said.The study was small, and the findings will have to be tested in larger groups of people, Santi
11、ago said.Previous studies on the topic have had mixed resultssome showed motherhood hurts cognition, and others showed the opposite. Studies on rats show those with pups have better memory than those without offspring.Santiago analyzed information from 35 first-time mothers whose children were ages
12、10 to 24 months, and 35 women who had never been pregnant. Both groups scored similarly on intelligence tests. The average age of mothers was 29 and the average age of never-pregnant women was 27.To test visuospatial memory, the women were shown a paper containing six symbols for 10 seconds, and the
13、n asked to draw what they remembered. This task was repeated several times. The first time women were shown the paper, both groups remembered about the same amount. But on the second and third pass, mothers performed better than those without children, indicating that the mothers collected more info
14、rmation each time than the other women.Later, the women were shown a variety of different symbols, and asked to remember which ones were presented on the earlier task. Mothers did not make a mistake in this taskthey remembered every symbol correctlybut those without children made one or two errors,
15、Santiago said.55. How did Santiago lead to the findings? A. By observation. B. By comparison. C. By analyzing intelligence tests. D. By asking women questions.56. By saying “The study was small, what did Santiago mean? A. The study received little attention. B. The study has just started. C. The stu
16、dy was carried out among a small group of people. D. A small group of researchers were involved in the study.57. Which of the following was discussed in the text? A. Ways to test visuospatial memory. B. Why having kids improves memory. C. How young mothers are different from never-pregnant women. D.
17、 The negative effects that worries of women without children have.58. It can be inferred that Santiago believe the findings of the study_. A. may cause a heated discussion among parentsB. may cause an increase in the birth rate C. are tested by previous similar studiesD. are encouraging news for mot
18、hersCA Childs History of the WorldOur Price: $28.00Item #: 010821ISBN: 978-8-8828-7028-7Grades: 4AdultProduct DescriptionV. M. Hillyer, the first headmaster of Calvert School, spent many of his school years studying only American history. Believing that studying world history would broaden childrens
19、 horizons and give them a better understanding of the world and history in general, he set out to write an understandable and comprehensive world history children could enjoy. A Childs History of the World functions to familiarize young children with some historical events and people of significance
20、 while reading like a good story. The subjects are covered in chronological order, from the beginning of the world through the end of the Cold War. This gives the child a linear view of world history that allows the details to be filled in later. A Childs History of the World is a basic reader and i
21、s not intended to be used as a supplementary reader.Customer ReviewsThis is a must-have book. It is a complete and engaging curriculum that is easy to use and understand. My girls are so close in age I was able to use it with all three at once and they loved it. And its inexpensive! Love the way it
22、is written.Katrena R. from Shingle Springs, CAThis is a great book. Everyone (elementary/primary aged) should have this book in their homeschooling library. My kids (ages 4-9) have all enjoyed this book. It is engaging and well written for young ones. There is a lot of information packed into this b
23、ook and it is presented in a way that is not boring for kids. It is kind of like The Story of the World.Patrice T. from Seattle59. We can know that A Childs History of the World _. A. included many original historical picturesB. included many interesting historical detailsC. was introduced to Calver
24、t School by V. M. HillyerD. was first used as a history textbook at Calvert School60. A Childs History of the World was written _.A. in order of space B. in order of timeC. in numerical(of numbers) orderD. in alphabetical order61. From A Childs History of the World, children can know _.A. important
25、events in AmericaB. famous places of historical interestC. lives of many famous people in the pastD. some stories of ordinary people in the past62. According to Katrena R, her children _. A. read A Childs History of the World to each other B. learned A Childs History of the World together C. each ha
26、d a copy of A Childs History of the World D. used A Childs History of the World to improve their writingDCities with high levels of homeownershipin the range of 75%, like Detroit and St. Louishad on average considerably lower levels of economic activity and much lower wages and incomes. Far too many
27、 people in financial problems are trapped in homes they cant sell, unable to move on to new centers of opportunity. The cities and regions with the lowest levels of homeownershipin the range of 55% to 60% like Los Angeles and New Yorkhad healthier economies and higher incomes. They also had higher l
28、evels of happiness and well-being.I was shocked to read these interesting points that Richard Florida made in his recent article. Let me try to understand. The people in Detroit and St. Louis are less happy than the people in New York, and Los Angeles. And, the reason is because of homeownership rat
29、es?First, to compare them to New York City (the economic capital of the world), Los Angeles (the entertainment capital of the world) seems unfair. Most people in almost any other city in the world might be less happy!Next, lets try a different way of determining whether renters are happier than home
30、owners. Why dont we ask them? Fannie Maes National Housing Survey 2010 reported:l 75% of current renters believe owning a home makes more sense.l 67% plan to buy a home at some point in the future.When they asked current renters for the major reason to buy a house, these were their answers (they cou
31、ld pick several answers):l 78% said it was a good place to raise children.l 75% said because they would feel safe.l 70% said because you have control of your own space.If you believe renters are happier, you would also have to believe the majority enjoy living in a less safe environment, which would
32、nt be a good place to raise children and would be a place where they have less control of their space.63. Which of the following is a fact?A. People in Los Angeles earn high incomes because of its low homeownership rate.B. New Yorks low homeownership rate increases peoples happiness levels.C. Detroi
33、ts high level of homeownership causes its economic problems.D. St. Louis has a higher level of homeownership than Los Angeles.64. In his article, Richard Florida tried to express that _.A. people in Los Angeles are happier than those in St. LouisB. renting a house is better than owning a houseC. Det
34、roits economy is healthier than New Yorks economyD. New York and Los Angeles are happiest cities65. The writer believes that New York City and Los Angeles _.A. pay employees highest wages in AmericaB. benefit from low levels of homeownershipC. are leading cities across the globeD. are best American
35、cities to live in66. From Fannie Maes survey report, we can know that _.A. paying rent makes more senseB. most homeowners plan to sell their housesC. most renters prefer to become homeownersD. parents need to buy a house for their childrenEOne important variable affecting communication across cultur
36、es is destiny (命运) and personal responsibility. This refers to the degree to which we feel ourselves the masters of our lives, contrary to the degree to which we see ourselves as subject to things outside our control. Another way to look at this is to ask how much we see ourselves able to change and
37、 act, to choose the course of our lives and relationships. Some have drawn a parallel between the personal responsibility in North American settings and the view itself. The North American view is vast, with large spaces of unpopulated land. The frontier attitude of “King” of the wilderness, and the
38、 expansiveness(广阔) of the land reaching huge distances, may relate to generally high levels of confidence in the ability to shape and choose our destinies.In this expansive land, many children grow up with a heroic sense of life, where ideas are big, and hope springs forever. When they experience te
39、mporary failures, they encouraged to redouble their efforts, to “try, try again.” Action, efficiency , and achievement are valued and expected. Free will is respected in laws and enforced by courts.Now consider places in the world with much smaller land, whose history reflects wars and tough struggl
40、es: Northern Ireland, Mexico, Israel, Palestine. In these places, destinys role is more important in human life. In Mexico, there is a history of hard life, fighting over land, and loss of homes. Mexicans are more likely to see struggles as part of their life and unavoidable. Their passive attitude
41、is expressed in their way of responding to failure or accident by saying “no mode” (“no way” or “tough lick”), meaning that the failure was destined.This variable is important to understanding cultural conflict. If someone believing in free will crosses paths with someone more passive, miscommunicat
42、ion is likely. The first person may expect action and responsibility. Failing to see it, he may conclude that the second is lazy, not cooperative, or dishonest. The second person will expect respect for the natural order of things. Failing to see it, he may conclude that the first is forcible, rude,
43、 or big headed in his ideas of what can be accomplished or changed.67. The author thinks that ones character is partly determined by _. A. physical senses B. general attitude C. financial background D. geographic characteristics68. According to the passage, Mexicans would think that Americans are _.
44、 A. impracticalB. dishonestC. ambitiousD. hesitant69. The underlined word “subject” in Paragraph l probably means _.A. a topic of a discussionB. a branch of knowledgeC. a person being experimented onD. a person under the power of others70. The author would probably agree that _.A. vast land may lead to a more controllable desireB. heroic sense of life roots deeply in a small countryC. living in limited space contributes to an accepting attitudeD. fighting over land may help people gain high levels of confidence 51-54 BCBA 55-58 BCAD 59-62 DBCB 63-66 DBCC 67-70 DADC
