1 . Americans spend billions on vitamins, multivitamins for their health, but a review of numerous studies concluded there is little to no evidence that some of those vitamins prevent heart disease, cancer or death.
The report, released by the U.S. Preventive Services Task Force last week, concluded that “recent evidence is not enough” to determine whether vitamins actually help or hurt your health, based on 84 studies, 52 of which were done since 2014. Vitamins examined included vitamins A, B, C, D and E, as well as other multivitamins.
“Our suggestion is neither for nor against taking vitamins, or combinations of those nutrients (营养物质). We just don’t have enough evidence,” said Dr. John Wong, a doctor in the Department of Medicine at Tufts Medical Center who was involved in the report.
While the finding is that vitamins don’t have any benefits to “healthy, non-pregnant (未怀孕) adults”, it doesn’t apply to “children, people who are pregnant or may become pregnant, or people who are hospitalized.”
The Task Force admitted it makes sense that people would take vitamins in hopes of health benefits, as some shortage may lead to illness. But experts agreed the best way to get good health and prevent cancer is a balanced diet and regular physical activity.
“The suggestion across all organizations about vitamins is to eat a balanced diet, and then the key tends to be on plenty of fruit and vegetables and less junk foods,” Wong said.
Wong added people should refer to their health doctors to determine if any vitamins are worth taking. He said this suggestion should also serve as a need to further research into proving the official benefits and risks for each vitamin.
1. Why can’t we say whether vitamins really benefit or harm health?A.Because they really have no benefit. |
B.Because many studies have proved it. |
C.Because evidence is not enough at present. |
D.Because Dr. John Wong wasn’t involved in the research. |
A.Vitamins are of no benefit to anyone. |
B.Vitamins are beneficial to healthy adults. |
C.Children can’t take vitamins though they are in hospital. |
D.People could take vitamins if lack of vitamin may tend to illness. |
A.Taking enough vitamins. |
B.Eating more packaged foods. |
C.Following their health doctor’s advice. |
D.Having a balanced diet and doing exercise. |
A.Taking Vitamins: No Benefit to People |
B.Doctor’s Advice on Buying Vitamins |
C.Taking Vitamins: Likely to Waste Money |
D.Americans Spending More Money on Vitamins |
2 . The Myers-Briggs Type Indicator (MBTI) was invented by Katharine Cook Briggs and her daughter Isabel Briggs Myers. It is a self-report questionnaire indicating differing psychological preferences in how people perceive the world and make decisions. The MBTI personality inventory (量表) sorts people into 16 type categories, each of which is represented by four-letter codes such as INFP and ESTJ. Every year, about 1.5 million people have enjoyed discovering their personality type by completing the MBTI. Many companies, as well as hundreds of universities, use it in hiring and training.
Nevertheless, the MBTI has received a noticeable criticism from the academic community. Some research suggests the MBTI is unreliable because the same person can get different results when retaking the test. Other studies have questioned the validity of the MBTI, which is the ability of the test to accurately link the “types” to outcomes in the real world -for example, how well people classified as a certain type will perform in a given job.
Merve Emre, a professor a Oxford University, points out that it would be more scientifically advisable to score the MBTI scales continuously to show people the degree to which they resemble the types. Even when the MBTI’s results don’t quite match your intuition (直觉) about yourself or are just wrong, they can still provide self-insight and insight into differences and similarities between people.
Scoring and interpreting the MBTI the way other personality inventories are scored and interpreted might be less fun than finding. All of the folklore (民间看法) about INFPs, ESTJs, etc. would have to be dismissed. But, in the end the MBTI is sufficiently reliable and valid enough to be useful in a number of real-world contexts.
1. What do we know about the MBTI from the first paragraph?A.It is a personality-testing tool. | B.It is divided into 16 categories. |
C.It is a study of personal preference. | D.It is a questionnaire on four-letter codes. |
A.It performs badly in job interviews | B.Its reliability has been questioned. |
C.It requires people to retake the test | D.Its advantages are not fully shown. |
A.It is beyond criticism. | B.It is a more scientific test. |
C.It is less fun than other tests. | D.It is useful for self-exploration. |
A.How Can We Use the MBTI? | B.Why do We Criticise the MBTI? |
C.Is the MBTI Totally Meaningless? | D.Is Scoring the MBTI Really Necessary? |
3 . How to Stop Spam Calls for Good
If you made a list of the little things that bothered you the most, phone call scams would no doubt be at the top. Telemarketers, or more often, automated robot-callers, have tricks for interrupting you at the worst possible moment.
Fact is that robot-callers are never going to stop trying to reach you. Their schemes bring in hundreds of thousands — if not millions — of dollars annually. And unfortunately, older people are more likely to fall prey to these scams.
Sign up for the National Do Not Call Registry
Your first move: Join the Federal Trade Commission’s National Do Not Call Registry. You can get on the list by calling 1-888-382-1222 from the phone number you want to register.
Use spam-filtering apps and tech
You probably know that a caller who insists you owe money to the IRS or says you’ll be arrested if you don’t settle a debt is a scammer. But your 10-year-old kid and your older parents and grandparents may be tricked. And remember: Knowing how to stop spam calls is just one step toward avoiding scams; don’t forget to explain how to stop spam texts to your loved ones, too.
A.Warn family members |
B.Report to the police at once |
C.Follow these steps to pull the plug on them once and for all. |
D.If you have multiple numbers to input, register them at DoNotCall. gov. |
E.Spam calls can reach you anytime and anywhere when you use your smartphone. |
F.They’re annoying, but that’s not the only reason you should know how to stop spam calls. |
G.The National Do Not Call Registry will prevent a lot of unwanted calls, but it won’t stop all of them. |
1. What’s the discussion about?
A.Children’s independence. |
B.Teachers’ medical treatment. |
C.Parents’ accompanying(陪伴)their children at school. |
A.About 30%. | B.About 50%. | C.About 70%. |
A.Set up goals. | B.Do the housework. | C.Finish their homework. |
A.Neither. | B.The first one. | C.The second one. |
5 . Climate breakdown threatens to cause a global food production crisis. The UN forecasts that by 2050, feeding the world will require a 20% expansion in global water use for agriculture. It is hard to see how agriculture can feed the population of the planet, let alone toward the end of the century and beyond. Agriculture is a major cause of climate breakdown, and both river and air pollution. Industrial fishing is similarly driving ecological collapse in seas around the world.
However, at this critical time, farming (a new kind of food technology) is creating astonishing possibilities to save both people and the planet. Farming will enable the return of vast areas of land and sea to nature, greatly reducing carbon emissions (排放物). It means an end to the employment of animals, a stop to overfishing, and a dramatic reduction in cutting down forests and the use of pesticides (杀虫剂). It is the best hope for stopping the destruction of the planet and, if it is done right, it means cheap and abundant food for everyone.
We are about to welcome one of the biggest economic transformations, of any kind, for 200 years. Arguments continue about plants against meat-based diets; however, new technologies will soon make these arguments irrelevant. Before long, most food will come neither from animals nor plants, but from micro-organisms (微生物).
Not only will food be cheaper, it will also be healthier. Due to the fact that farming creates food products built up from simple components rather than broken down from complex ones, hard fats and other unhealthy components can be screened out. Meat will still be meat, but it will be grown in factories rather than in the bodies of animals. Fats will still be fats, but food is likely to be better, cheaper and much less damaging to the living planet.
1. What is the major cause of sea ecological breakdown?A.Food production. | B.Global farming. |
C.Industrial fishing. | D.Climate breakdown. |
A.Its benefits. | B.Its security. | C.Its research. | D.Its limits. |
A.Sea animals. | B.Wild plants. | C.Micro-organisms. | D.Farm products. |
A.Doubtful. | B.Positive. | C.Disapproving. | D.Unclear. |
With the International Conference on Food Loss and Waste closed on Saturday in Jinan, Shandong Province, the country has sent a signal to
The current world grain production is about 2.8 billion tons a year. Therefore, the loss of only one percentage
In recent years, China
We cannot end hunger
An article describing the attitude of post-1990s generations toward life has
“It is fine to have something or not, there is no need to fight for or win anything, and they are easy
The phrase has been received well by netizens
8 . While it may be commonplace, snubbing one’s friends can have serious impacts on relationships, and there are a variety of factors that may drive individuals to ignore their friends in favor of an electronic screen, according to a new University of Georgia study.
The study reveals positive associations between depression and social anxiety and increasing snubbing: depressed people are likely to snub their friends more frequently, and socially anxious people, who prefer online social interactions, might also exhibit more snubbing behavior. These people are really sensitive to their messages. With each buzz or sound, they consciously or unconsciously look at their phones. The device’s various applications are key drivers contributing to this dynamic.
The finding also shows that agreeable individuals have a lower instance of snubbing in the presence of their friends. People who have agreeableness as a personality feature tend to show cooperative, polite and friendly behaviors in their interpersonal relationships and social settings. Though agreeable people may prioritize strong friendships, an exploratory study reveals they are also more likely to turn to phones in the presence of three or more people.
That dynamic may influence the spread of snubbing in the context of a work environment. “It’s ironic that while so many people believe that snubbing behavior is rude, they still do it,” Sun said. “A majority of people snub others, and in a group, it may seem OK, because it’s just me, the speaker doesn’t notice I’m using the phone. The number of people in a group can be one reason.”
Alternately, disabling or turning over a phone can indicate a show of respect for a situation and focus on a person. That, too, is a signal—I am listening to what you are saying and I am focusing on you.
1. What does the underlined word “snubbing” in paragraph 1 mean?A.ignoring | B.depressing | C.respecting | D.suspecting |
A.Social requirements. | B.Unhealthy mental condition. |
C.Frequent social interactions. | D.Limited communication devices. |
A.They are insensitive to phone messages. |
B.They are more likely to snub their friends. |
C.They attach importance to firm friendships. |
D.They get accustomed to groups with more people. |
A.The majority are using phones. |
B.They don’t like the environment. |
C.The speaker doesn’t care about it. |
D.They think they will go unnoticed. |
A.How snubbing behaviors can be avoided |
B.Why people snub their friends with their phones |
C.Why people are addicted to phone messages |
D.How phones influence people’s social interactions |
9 . Under the background of the slow growth of its total population to 1.44 billion, China has seen a sharp rise in older adults over the past decade, solidifying the country’s rapidly aging pattern, the latest national census (人口普查) data shows. The population on the Chinese mainland increased by an average of 0.53 percent annually during the past 10 years to 1.41 billion, compared with an annual growth rate of 0.57 percent from 2000 to 2010, according to the 7th national census published by the National Bureau of Statistics.
“The growth of the total population has slowed down but remains at a steady pace,” Ning Jizhe, head of the bureau, said at a news conference. “Based on trends in recent years, China’s population will grow at an increasingly slow rate in the future while remaining above 1.4 billion.” The increasing elderly population has become a defining feature of the past decade.
Ning said an aging society will set the tone for China's population structure for a long time, presenting challenges and opportunities. “A graying population will pile pressure on supply of labor force and social services, as well as adding to families’ elderly care burden. But more elderly people could also motivate consumption of products and services targeting this age group, and advance the development of some technologies,” he said.
Ning added that those between the ages of 60 and 69, who are equipped with knowledge, experience and skills and are generally in good health, make up nearly 56 percent of all older adults. “Their potential to continue making contributions to society and playing a constructive role is big,” he responded to a question on the outlook for raising the retirement age and carrying out other potential measures aimed at addressing the aging trend. Some population economists also said the latest number and proportion (比例) of elderly are largely within predictions, and the aging trend will continue for a long time.
1. What does the 7th national census data show?A.The aging population of China has risen rapidly. |
B.The annual growth rate has increased by 0.04%. |
C.The annual growth rate was 0.57% during the past 10 years. |
D.The total population of Chinese mainland increased to 1.44 billion. |
A.It is beyond predictions. | B.It brings few advantages. |
C.It has sharply slowed down. | D.It will increase pressure on family. |
A.Objective. | B.Doubtful. | C.Unclear. | D.Negative. |
A.The aging trend brings problems |
B.An aging society presents opportunities |
C.China’s population gets old as growth slows |
D.Measures are to be taken to tackle the aging trend |
Recently, Chinese people from all walks of life
Our society is becoming increasingly competitive when population outgrows resources. Accordingly,
Netizens now use involution to describe their current conditions, especially in the study of children. Parents feel stressed
Too much pressure is bound to do harm to children physically and mentally. Parents should cool down firstly and relieve their own anxiety, taking