2012新增文章答案.doc

*第三八篇 Life Form Found on Saturns Titan1 .What have scientists found about Saturn?A They have found a new moon orbiting Saturn. B They have found methane-based life on Saturn.C They have found methane-based life on Titan. D They have found earthlike life on a Saturns moon.2. What do scientists say about Titan?A There are life clues there. B There is acetylene there.C Water on Titan exists in the form of ice. D Rivers and lakes there contain life formls.3. To date,scientists have not yet detected this form of life.(paragraph 5)What doesthis form of life refer to?A Water-based life. B Methane-based life. C Liquid-water-based microorganisms. D Gas-based life.4. What can be inferred from what Allen said?A Scientists have different arguments over whether there is life on Titan.B Scientists all agree that there is life on Titan. C Scientists all suggest that a biological explanation is reasonable.D Scientists all agree that a non-biological chemical reaction is a possible explanation.5. Which of the following can replace the title of this passage?A Earthlike Living Beings Found on Titan. B Finding of One More Moon of Saturn.C Titan,a New Satellite Found. D A different Life Form, a Possibility.*第四十篇 Teaching Math, Teaching Anxiety1. What is the result of the research at the University of Chicago,according to the first paragraph?A Girls comfortable with their own math skills are better than boys at math.B Girls uncomfortable with their own math skills are not as good as boys at math.C Female teachers math skills have influence over girl students math skills.D Female teachers confidence in their math skills is related to girls math skills.2. What is implied in the third paragraph?A Math teachers,like math learners,do not like the subject due to its difficulty.B A difficult subject like math may affect teachers confidence in teaching the subject.C Teachers are more anxious teaching math than their students learning math.D Math is so difficult that no teachers like to teach it.3. According to the experiment,those teachers were probably anxious about math when they feltA nervous memorizing the numbers of a sales receipt. B helpless saving the numbers of a sales receipt.C uneasy reading the numbers of a sales receipt. D hopeless filling in the numbers of a sales report.4. The sixth paragraph tells us that the research findingsA prove a strong link between female teachers math anxiety and their female students mathB show that male students are less likely to be affected by their math anxiety than female.C provide strong evidence that math superstars are more likely to be males than females.D discover a strong link between teachers math anxiety and their students math achievements.5. David Geary thinks thatA the study is interesting but it is based on unreliable research process. B the research results need to be retested based on a larger sample. C the research results need to be reinterpreted to be meaningful. D the study is well based and produces significant results.*第十一篇Climate Change Poses Major Risks for Unprepared CitiesA new examination of urban policies has been 1carried out recently by Patricia Romero LankaoShe is a sociologist specializing in climate change and2urban developmentShe warns thatmany of the worlds fast-growing urban areas，especially in developing countrieswill likely sufferfrom the impacts of changing climateHer work also concludes that most cities are failing to3 reduceemissions of carbon dioxide and other greenhouse 4gasesThese gases are knownto affect the atmosphere”Climate change is a deeply local issue and poses profound threats to the growing cities of the world,” says Romero Lankao. ”But too few cities are developing effective strategies to 5protecttheir residents.Cities are6majorsources of greenhouse gasesAnd urban populations are likely to be among those most severely affected by future climate change. Lankaos findingshighlight ways in which city-residents are particularly vulnerable, and suggest policy interventions that could offer immediate and longer-term7benefitsThe locations and dense construction patterns of cities often place their populations at greater risk for natural disasters. Potential8threatsassociated with climate include storm surges andprolonged hot weather. Storm surges can flood coastal areas and prolonged hot weather can heat9 heavilypaved cities more than surrounding areasThe impacts of such natural events can be more serious in an urban environmentFor example，a prolonged heat wave can increase existinglevels of air pollution，causingwidespread health problemsPoorer neighborhoods thatmay10lackbasic facilities such as drinking water or a dependable network of roads，are especially vulnerable to natural disastersMany residents in poorer countries live in substandard housing11 withoutaccess to reliable drinking water，roads and basic services.Local governments,12therefore,should take measures to protect their residents.”Unfortunately，they tend to move towards rhetoric13rather thanmeaningful responses,Romero Lankao writes, ” They dont impose construction standards that could reduce heating and air conditioning needs. They dont emphasize mass transit and reduce14automobileuse. In fact, many localgovernmentsare takinga handsoffapproach.” Thus, she urges them tochangetheir15idlepolicies and to take strong steps to prevent the harmful effects of climate change on cities.*第十二篇Free Statins With Fast Food Could Neutralize Heart RiskFast food outlets could provide statin drugs free of1 chargeso that customers can reduce the heart disease dangers of fatty food, researchers at Imperial College London2suggest ina new studyStatins reduce the3amountof unhealthy ”LDL” cholesterol in the blood. A wealth of trialdata has proven them to be highly effective at lowering a persons heart attack4risk.In a paper published in theAmerican Journal of Cardiology，Dr Darrel Francis and colleagues calculate that the reduction in heart attack risk offered by a statin is 5enoughto offset the increase in heart attack risk from6eating acheeseburger and drinking a milkshakeDr Francis，from the National Heart and Lung Institute at Imperial College London，who is the senior author of the study, said:”Statins dont cut out a11 of the 7unhealthyeffects of cheeseburgers and French friesIts better to avoid fatty food altogetherBut weve worked out that in terms of your8possibility of having a heart attack. Taking a statin can reduce your risk to more or less the same9 degreeas a fas