A study made by University of Sussex found that men and women who frequently used several types of technology at the same time had less grey matter in a key part of the brain . The researchers said : " Simultaneously , using mobile phones , laptops and other media devices could change the structure of our brains . " Worryingly , the part of the brain that shrinks is involved in processing emotion . The finding has linked multi-tasking with a shortened attention span , depression , anxiety and lower grades at school . The researchers began by asking 75 healthy men and women how often they divided their attention between different types of technology . This could mean sending a text message while listening to music and checking email , or speaking on the phone while watching TV and surfing the web . The volunteers were then given brain scans which showed they had less grey matter in a region called the anterior cingulated cortex ( ACC ) . The findings held even when differences in personality were taken into account . The study , published in the journal PLOS ONE , is the first to make a link between multi-tasking and the structure of the brain . Researcher KepKeeLoh said : " Media multi-tasking is become more popular in our lives today and there is growing concern about its impacts on our cognition and social-emotional well-being . " He added that more researches are needed to prove that multi-tasking shrinks the brain . This is because it is also possible that people with less grey matter in the ACC are more likely to use lots of devices simultaneously . Scientists have previously described brain structure can be altered on prolonged exposure to new environments and experience . Other studies have shown that training - such as learning magic or taxi drivers learning the map of London - can increase grey matter densities in certain parts . What can we learn about grey matter from the passage ? A) Watching the TV for a long time can reduce grey matter . B) The decrease of grey matter in the ACC affects emotion . C) People with less grey matter prefer to use media devices . D) Taxi drivers in London have more grey matter than others .
B
All right! Enough cookies,cola, and chips! It seems that junk food is all that the children want to eat these days.Television controls their tastes.The kids see well-known personalities eating potato chips, candy and other processed food, and they want to be like their heroes.How do they do it?They eat the same food. I wish there were more characters like old Popeye , the sailor, who ate spinach and not French fries. Now I don't expect my children to eat healthy food because I like brown rice, beans, and fresh vegetables. I'm glad to cook traditional meals of meat and potatoes for them. I really can't be too upset with the kids because most adults aren't careful about what they eat. The other night, my wife and I went to a party where there was plenty to drink but very little for us to eat. They served hot dogs and hamburgers. I can't eat hot dogs, with all those preservatives , and hamburgers are filled with chemicals so that they look better. Besides the meat, they had sugar-filled cookies and cake, and of course, chips. I don't want the world to change because of me, but I think people should realize that there are alternatives to eating meat. They always tell me that I probably don't get my essential proteins. I feel better than ever and I'm sure that it's because I'm a vegetarian . I would really like to see more television advertisements which show the benefits of good, healthy, natural food. which of the following is NOT true? A) Television influences children's food choice B) The author is not single and he eats meats C) Though the author is a vegetarian, he feels very healthy D) It is certain that beans and spinach are not junk food
B
Q: McDonald's is the world single biggest food provider with annual sales of around $12.4bn. And the company's symbol Ronald McDonald is now (or so the company claims) the word's most recognized person after Santa Claus. The first McDonald's restaurant was opened in San Bernardino, California, in 1948 by brothers Mac and Richard "Dick" McDonald. Mac ran the restaurant side; Dick was the marketing genius. He had already invented the drive-in laundry and had been the first person to use neon lights in advertising. Now he spotted the gap in the post-war, baby-boom market for cheap, family-orientated restaurants with simple menus, standardized food and efficient service. After a slow start, business began to boom. By 1954, the brothers were joined by another entrepreneur, a kitchen equipment salesman called Ray A Kroc who owned the franchise to the Multimixer, milk shake maker used throughout the McDonald's chain. A year later, Kroc had bought the McDonald brothers' chain of 25 franchises for the equivalent of around $70m(PS44m). Dick remained with the company until the Seventies, when he and Kroc fell out over Kroc's claim that the chain was his creation. Today, an almost Stalinist cult of personality surrounds Kroc (who died in 1984) at McDonald's, while the brothers who gave the company its name have all but been written out of its history. But though Kroc did not found McDonald's, he was certainly responsible for the empire-building philosophy which led to its world domination. He ushered in such essential contributions to international cuisine as the Big Mac (1968) and the Egg McMuffin (1973); and helped launch Ronald McDonald ---- "in any language he means fun" ---- on to television in 1963. Every three hours, a new McDonald's franchise opens somewhere in the world; it can be found in more than 100 countries including India (vegetarian-only to avoid offending the non-beef-eating populace) and Israel (non kosher, despite fierce local objection). McDonald's chain embodied the thrusting, can-do spirit of Fifties... What do we know about McDonald's brothers? A) They were not McDonald's founders although they named the restaurant. B) Their business was still in depression after several years. C) They had clear job separation on business. D) They sold their restaurant to a salesman in 1954.
A: C
(Q).
A study suggests that although most students at UK universities are happy with their courses, dissatisfaction has grown as fees rise.The study highlights a big variation in teaching time, and lists different ideas about the value of getting university degrees. Katharine Collins, a second-year college student The course has been very interesting, but I was expecting a little more one-to-one time with my teacher. We do about four assignments each term, each of which is about 3,000 words.However, sometimes they are not that helpful.We hope to be given the right to write feedback after every assignment, but we had no feedback at all throughout the first year.We are given grades about three weeks after we hand the assignments in.There is no feedback on where we have gone wrong or how we might improve. Lee Millington, a creative-writing student I choose the courses because of its reputation.There is a lack of one-to-one teaching.I would like personalized feedback from an expert in my field of writing.Some of the lectures have been quite helpful but they try to use too many different styles of writing.For example, if you want to be a poet, you might find that the lectures focus too much on novels. I think there is too much attention paid to sharing our work in workshops and giving each other feedback.I think there should be more time given to actual teaching, rather than to feedback from people who are at a similar level to me. Reporters from Hounsdown Secondary School, Ella, 16 When I work independently, I feel I have more freedom to develop my ideas and come up with more original viewpoints.The price of university will still be worth it to get the qualifications necessary for better jobs. Tyier, 16 Although the cost of university is very high now, I think university is required for gaining a good and well-paid job. Agencies What does the author mainly tell us at UK in this passage? A) The value for university degrees. B) The higher pay for courses at university. C) The terrible assignments at university. D) The puzzle of the students at university.
(A).
A