[单选题]Text 4 Consuming high-quality plant foods such as whole grains,fruits,vegetables,nuts and legumes may substantially lower risk of developing type 2 diabetes,researchers including one of Indian-origin have claimed."This study highlights that even moderate dietary changes in the direction of a healthful plant-based diet can play a significant role in the prevention of type 2 diabetes,"said Ambika Satija from Harvard T. H.Chan School of Public Health in the US."These findings provide further evidence to support current dietary recommendations for chronic disease prevention,"she said.While previous studies have found links between vegetarian diets and improved health outcomes,including reduced risk of type 2 diabetes,this new study is the first to make distinctions between healthy plant-based diets and less healthy ones that include things like sweetened foods and beverages,which may be detrimental for health.The study also considered the effect of including some animal foods in the diet.Researchers followed more than 200,000 male and female health professionals in the US for more than 20 years who had regularly filled out questionnaires on their diet,lifestyle,medical history,and ncw disease diagnoses as part of three large long-term studies.They evaluated participants'diets using a plant-based diet index in which they assigned plant-derived foods higher scores and animal-derived foods lower scores.The study found that high adherence to a plant-based diet that was low in animal foods was associated with a 20 percent reduced risk of type 2 diabetes compared with low adherence to such a diet,researchers said.Eating a healthy version of a plant-based diet was linked with a 34 per cent lower diabetes risk,while a less healthy version-including foods such as refrned grains,potatoes,and sugar-sweetened beverages-was linked with a 16 per cent increased risk,they said.Even modestly lowering animal food consumption-for example,from 5-6 servings per day to about 4 servings per day-was linked with lower diabetes incidence,the study found."A shift to a dietary pattern higher in healthful plant-based foods,such as vegetables,fruits,whole grains,legumes,nuts,and seeds,and lower in animal-based foods,especially red and processed meats,can confer substantial health benefits in reducing risk of type 2 diabetes,"said Frank Hu from Harvard Chan School.Researchers suggest that healthful plant-based diets could be lowering type 2 diabetes risk because such diets are high in fiber,antioxidants,unsaturated fatty acids,and micronutrients such as magnesium,and are low in saturated fat.Healthy plant foods may also be contributing to a healthy gut microbiome,they said. The best title for the text should be_____
A.Plant-Based Diet May Lower Risk ofType 2 Diabetes
B.Better Not to Eat Too Many Animal Foods
C.We Should Eat Vegetable Foods to Prevent Chronic Diseases
D.Plant-Based Diet with High Fiber and Low Fat Is Beneficial

[单选题]Text 4 Consuming high-quality plant foods such as whole grains,fruits,vegetables,nuts and legumes may substantially lower risk of developing type 2 diabetes,researchers including one of Indian-origin have claimed."This study highlights that even moderate dietary changes in the direction of a healthful plant-based diet can play a significant role in the prevention of type 2 diabetes,"said Ambika Satija from Harvard T. H.Chan School of Public Health in the US."These findings provide further evidence to support current dietary recommendations for chronic disease prevention,"she said.While previous studies have found links between vegetarian diets and improved health outcomes,including reduced risk of type 2 diabetes,this new study is the first to make distinctions between healthy plant-based diets and less healthy ones that include things like sweetened foods and beverages,which may be detrimental for health.The study also considered the effect of including some animal foods in the diet.Researchers followed more than 200,000 male and female health professionals in the US for more than 20 years who had regularly filled out questionnaires on their diet,lifestyle,medical history,and ncw disease diagnoses as part of three large long-term studies.They evaluated participants'diets using a plant-based diet index in which they assigned plant-derived foods higher scores and animal-derived foods lower scores.The study found that high adherence to a plant-based diet that was low in animal foods was associated with a 20 percent reduced risk of type 2 diabetes compared with low adherence to such a diet,researchers said.Eating a healthy version of a plant-based diet was linked with a 34 per cent lower diabetes risk,while a less healthy version-including foods such as refrned grains,potatoes,and sugar-sweetened beverages-was linked with a 16 per cent increased risk,they said.Even modestly lowering animal food consumption-for example,from 5-6 servings per day to about 4 servings per day-was linked with lower diabetes incidence,the study found."A shift to a dietary pattern higher in healthful plant-based foods,such as vegetables,fruits,whole grains,legumes,nuts,and seeds,and lower in animal-based foods,especially red and processed meats,can confer substantial health benefits in reducing risk of type 2 diabetes,"said Frank Hu from Harvard Chan School.Researchers suggest that healthful plant-based diets could be lowering type 2 diabetes risk because such diets are high in fiber,antioxidants,unsaturated fatty acids,and micronutrients such as magnesium,and are low in saturated fat.Healthy plant foods may also be contributing to a healthy gut microbiome,they said. The author's attitude towards refined grains is_____.
A.supportive
B.indifferent
C.negative
D.critical

[单选题]It′ s said that the power plant is now __________large as what is was.
A.twice as
B.as twice
C.twice much
D.much twice

[单选题]Text 4 As the nation experiences one of the worst flu seasons in years,thousands of Americans have already died from influenza,according to the U.S.Centers for Disease Control and Prevention.Though the season peaked in February,the CDC recently warned that we should prepare for a second wave of cases to hit before we emerge from the season entirely.Now,it appears more than 50,000 could die from the flu before the season ends.Perhaps most troubling is that this year marks a century since the deadliest viral outbreak in human history,which claimed the lives of 670,000 American men,women and children and as many as 50 to 100 million people worldwide.Among the lessons medical researchers gleaned from the catastrophic event is the critical importance of getting vaccinated.It's a lesson that much of the public continues to ignore,even as our scientific understanding of communicable diseases continues to grow.-The strain in tlus flu season,H3N2,is particularly nasty.It's similar to the HINl strain that set off the 1918 influenza pandemic,and it has resulted in high rates of death,particularly among the elderly.Researchers have struggled to create effective vaccines for the H3N2 strain;this year's flu vaccine is only about 36 percent effective at protecting against the virus,compared to an average of 45 percent over the past seven years.Nonetheless,it does provide some protection,and the unvaccinated are hit much harder without it.Earlier this year,a healthy young man from Pittsburgh did not get vaccinated and died soon afier getting the flu.While low vaccine efficacy means that those who get vaccinated can still contract the flu,it remains common sense and good civic behavior to get vaccinated.As a result of herd immunity,even low efficacy vaccines are enough to curb a pandemic from happening if vaccination rates are high.Flu vaccines did not exist during the pandemic of 1918,which is why it was so deadly.Yet year after year few Americans bother to get vaccinated.In economic terms,the herd immunity benefits of vaccination are a"public good."If I am vaccinated,I cannot exclude anyone from the herd immunity that I now offer.Similarly,someone enjoying my herd immunity does not diminish someone else's ability to enjoy my herd immunity.What typically happens when a public good like the flu vaccine is available is that many,perhaps most,people underinvest.They free ride off other people who get the vaccine.If too many people opt out of vaccination,communities become wlnerable to flu epidemics.According to the CDC,only 38 percent of the population chose to get vaccinated as ofNovember 2017.Low rates ofvaccination are particularly dangerous for children and the elderly,who are especially susceptible to influenza.As individuals,we have veU little control over the strain of the flu that emerges in a given year,or the efficacy of a vaccine,but we do have complete control over whether we get vaccinated.The public's response to a bad fiu outbreak or to low vaccine efficacy should be an increase in flu vaccinations,not a decrease.39.The author implies in the last paragraph that faced with a bad flu outbreak,
A.the public should try to enhance the efficacy of a vaccine.
B.effective vaccines should be used to control over it.
C.the public should make a quicker response to it.
D.emphasis should be laid more on vaccination than a vaccine efficacy.

[单选题]Text 2 All around the world,lawyers generate more hostility than the members of any other profession—with the possible exception of journalism.But there are few places where clients have more grounds for complaint than America.During the decade before the economic crisis,spending on legal services in America grew twice as fast as inflation.The best lawyers made skyscrapers-full of money,tempting ever more students to pile into law schools.But most law graduates never get a big-firm job.Many of them instead become the kind of nuisance-lawsuit filer that makes the tort system a costly nightmare.There are many reasons for this.One is the excessive costs of a legal education.There is just one path for a lawyer in most American states:a four-year undergraduate degree in some unrelated subject,then a three-year law degree at one of 200 law schools authorized by the American Bar Association and an expensive preparation for the bar exam.This leaves today’s average law-school graduate with$100,000 of debt on top of undergraduate debts.Law-school debt means that many cannot afford to go into government or non-profit work,and that they have to work fearsomely hard.Reforming the system would help both lawyers and their customers.Sensible ideas have been around for a long time,but the state-level bodies that govern the profession have been too conservative to implement them.One idea is to allow people to study law as an undergraduate degree.Another is to let students sit for the bar after only two years of law school.If the bar exam is truly a stern enough test for a would-be lawyer,those who can sit it earlier should be allowed to do so.Students who do not need the extra training could cut their debt mountain by a third.The other reason why costs are so high is the restrictive guild-like ownership structure of the business.Except in the District of Columbia,non-lawyers may not own any share of a law firm.This keeps fees high and innovation slow.There is pressure for change from within the profession,but opponents of change among the regulators insist that keeping outsiders out of a law firm isolates lawyers from the pressure to make money rather than serve clients ethically.In fact,allowing non-lawyers to own shares in law firms would reduce costs and improve services to customers,by encouraging law firms to use technology and to employ professional managers to focus on improving firms’efficiency.After all,other countries,such as Australia and Britain,have started liberalizing their legal professions.America should follow.30.In this text,the author mainly discusses
A.flawed ownership of America’s law firms and its causes.
B.the factors that help make a successful lawyer in America.
C.a problem in America’s legal profession and solutions to it.
D.the role of undergraduate studies in America’s legal education.