1 . One of the presents in my house this Christmas was a late 18th-century volume of the Encyclopaedia Britannica (大英百科全书). It is a window into the discoveries and thinking of the time. The encyclopaedia is an entertaining reminder of how
Our confusion is the theme of Spoon-Fed, a book by one of Britain’s leading nutrition researchers, Tim Spector of King’s College London. Its subtitle is: “Why almost everything we’ve been told about food is wrong.” It is a call for us to
One by one Spector offers answers to recent food
Spector also offers more than a set of currently
Some combination of food choices, genes, environment and the chemical reactions generated by our microbiome — the unique microbe (微生物的) combinations in our body ― yes different
A.well-known | B.aim-oriented | C.ill-founded | D.long-lived |
A.certain about | B.ignorant of | C.capable of | D.worried about |
A.decisions | B.courses | C.focuses | D.suggestions |
A.facts | B.chances | C.reasons | D.features |
A.investigate | B.demand | C.concentrate | D.spend |
A.supplies | B.shortages | C.standards | D.myths |
A.culture | B.history | C.economy | D.health |
A.equally | B.practically | C.socially | D.impossibly |
A.effectiveness | B.consciousness | C.competitiveness | D.emptiness |
A.serves | B.shares | C.recognizes | D.dismisses |
A.pointless | B.topical | C.defensible | D.additional |
A.emotional | B.significant | C.questionable | D.forgivable |
A.individual | B.unpredictable | C.important | D.available |
A.changes | B.outcomes | C.profits | D.addicts |
A.start | B.analyze | C.stop | D.reflect |
Most people know yoga as a kind of exercise, which aims at developing strength and flexibility. However,
3 . As we age, even if we’re healthy, the heart just isn’t as efficient in processing oxygen as it used to be. In most people the first signs show up in their 50s or early 60s. And among people who don’t exercise, the changes can start even sooner.
“Think of a rubber band. In the beginning, it is flexible, but put it in a drawer for 20 years and it will become dry and easily broken,” says Dr. Ben Levine, a heart specialist at the University of Texas. That’s what happens to the heart. Fortunately for those in midlife, Levine is finding that even if you haven’t been an enthusiastic exerciser, getting in shape now may help improve your aging heart.
Levine and his research team selected volunteers aged between 45 and 64 who did not exercise much but were otherwise healthy. Participants were randomly divided into two groups. The first group participated in a program of nonaerobic (无氧) exercise—balance training and weight training—three times a week. The second group did high-intensity aerobic exercise under the guidance of a trainer for four or more days a week. After two years, the second group saw remarkable improvements in heart health.
“We took these 50-year-old hearts and turned the clock back to 30-or 35-year-old hearts,” says Levine. “And the reason they got so much stronger and fitter was that their hearts could now fill a lot better and pump (泵送) a lot more blood during exercise.” But the hearts of those who participated in less intense exercise didn’t change, he says.
“The sweet spot in life to start exercising, if you haven’t already, is in late middle age when the heart still has flexibility,” Levine says. “We put healthy 70-year-olds through a yearlong exercise training program, and nothing happened to them at all.”
Dr. Nieca Goldberg, a spokeswoman for the American Heart Association, says Levine’s findings are a great start. But the study was small and needs to be repeated with far larger groups of people to determine exactly which aspects of an exercise routine make the biggest difference.
1. What does Levine want to explain by mentioning the rubber band?A.The right way of exercising. |
B.The causes of a heart attack. |
C.The difficulty of keeping fit. |
D.The aging process of the heart. |
A.Diet plan. |
B.Professional background. |
C.Exercise type. |
D.Previous physical condition. |
A.Making use of the findings. |
B.Interviewing the study participants. |
C.Conducting further research. |
D.Clarifying the purpose of the study. |
4 .
A.She must have paid a lot. |
B.She is known to have a terrific figure. |
C.Her gym exercise has yielded good results. |
D.Her effort to keep fit is really praiseworthy. |
Phys ed (physical education) is making a comeback as a part of the school core curriculum, but with a difference. While group sports are still part of the curriculum, the new way is to teach skills that are useful beyond gym class. Instead of learning how to climb a rope, children are taught to lift weights, balance their diets and build physical endurance. In this way, kids are given the tools and skills and experiences so they can lead a physically active life the rest of their life.
Considering that 15 percent of American children aged 6 to 18 are overweight, supporters say more money and thought must be put into phys ed curriculum. In many cases, that may mean not just replacing the old gym-class model with fitness programmes but also starting up phys ed programmes because school boards often “put P. E. on the chopping block, cutting it entirely or decreasing its teachers or the days it is offered”, says Alicia Moag-Stahlberg, the executive director of Action for Health Kids. The difference in phys ed programmes is partly due to the lack of a national standard. “Physical education needs to be part of the core curriculum,” she added. The wisdom of the new approach has some scientific support.
Researchers at the University of Wisconsin have demonstrated how effective the fit-for-life model of gym class can be. They observed how 50 overweight children lost more weight when they cycled and skied cross-country than when they played sports. The researchers also found that teaching sports like football resulted in less overall movement, partly because reluctant students were able to sit on the bench.
Another problem with simply teaching group sports in gym class is that only a tiny percentage of students continue playing them after graduating from high school. The new method teaches skills that translate to adulthood.
_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
假如你是中学生李华,你的同学王海最近感觉体质较差想要健身,他对于在家添置家用健身器材和去专业健身房健身这两种方式犹豫不决。你作为班级中的健身达人,给王海写一封信谈谈你的想法,供他参考。你的信必须满足以下要求:
1. 简述你写信的目的以及你建议王海选择哪一种健身方式;
2. 说明你的理由(从便利性、费用和效果等方面对这两个健身选择进行对比)。
___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
A.She has never gone hiking. |
B.She enjoys hiking very much. |
C.She enjoyed her experience of hiking. |
8 . 听下面一段较长对话,回答以下小题。
1. How does Christopher feel after going to the gym?A.Energetic. | B.Tired. | C.Relaxed. |
A.He classifies the birds. | B.He focuses on rare birds. | C.He writes reports on birds. |
A.About 3 hours. | B.About 6 hours. | C.About 8 hours. |
9 . How can the man keep a good shape?
A.By doing regular exercise. |
B.By forming a healthy eating habit. |
C.By carrying out a strict plan for running. |
A.Playing basketball. | B.Jogging. | C.Walking. |