阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。
Canyoning (蹦谷运动)
The sports of canyoning explore the high-energy environment where water meets rock on the coast. Protected by wetsuits and helmets (头盔), people jump from cliffs (悬崖) and waterfalls and discover caves that would not normally be arrived at.
It was first done in the U.K. by TYF Adventure (01437 721611, www.tyf.com) and several thousand people jump from the cliffs near St David’s each year. A half day canyoning trip costs ￡50 (￡30 for children under 16).
Diving (潜水)
Diving is not popular with British people. The difficulties of wild waters are greater because the water is colder and not clear enough, but the coasts of Cornwall, Wales and Scotland have some of the best diving in the world.
The British Sub Aqua Club (0870 112 9133, www.bsac.com) and the Professional Association of Diving Instructors (01580 819688, www.padi.com) run courses teaching the important skills.
Surfing (冲浪)
The best surfing places in the UK are on the southwest coast where it is warmer, especially in Cornwall. The best time of year to surf in the UK is late summer and autumn when water temperatures are warmer.
The British Surfing Association (01479 861256, www.britsurf.co.uk) has a list of famous surf schools around the country.
Rock climbing
The most popular natural rocks in Britain include the Peak District, the Lake District, while large areas of Scotland are a climber’s ideal place. Climbing courses and climbing walls can be found on the website of the British Mountaineering Council (0870 010 4878, www.thebmc.co.uk) which offers a series of short films that take the new climber through a step-by-step guide to visiting a climbing wall for the first time.
1. If a couple with their child of 15 join in Canyoning for a day, they will pay ______.
| A．￡130 | B．￡160 | C．￡260 | D．￡320 |
| A．01479 861256 | B．0870 010 4878 |
| C．01437 721611 | D．0870 112 9133 |
| A．Canyoning. | B．Diving. |
| C．Surfing. | D．Rock climbing. |
The devices are designed to record your physical activity. They are usually worn around the wrist, where they measure a person’s heart rate. The research team looked at two groups of individuals. The first wore a fitness tracker and took part in health counseling (咨询) with experts to consider the best weight-loss plan. The researchers compared this group with people who only got health counseling.
The study found that those only speaking with the health experts lost nearly 6 kilograms, but those using a fitness tracker lost only 3.5 kilograms. John Jakicic, the lead researcher, questioned the use of electronic devices for weight control in place of “effective behavioral counseling for physical activity and diet. ”
The study involved 470 subjects aged between 18 and 35. Some of them were overweight, while others were considered obese (肥胖的). Over three fourths of the subjects were women. All the subjects were told to increase physical activity and start on a low-calorie diet. They had their weight measured once every six months. After six months, researchers divided the group into two parts: one continued with monthly counseling, while members of the other group were given a fitness tracker. Eighteen months later, both groups “showed significant improvements in fitness, physical activity, and diet,” with no major difference between groups. However, when it came to losing weight, the people who only spoke with experts lost nearly twice as much weight.
Jakicic said, “the study’s findings are important because effective long-term treatments are needed to address America’s obesity. ” More information is needed, he added, to learn how to best use these devices to change “physical activity and diet behaviors” in adults who want to lose weight.
1. All the subjects in the study were asked to ________.| A．start on a high-calorie diet | B．wear a fitness tracker |
| C．increase physical activities | D．record their heart rates |
| A．Wearing fitness trackers hardly helps people lose weight. |
| B．Physical activity and diet have no effect on weight loss. |
| C．Handling obesity requires effective long-term treatments. |
| D．There are great differences in fitness between both groups. |
| A．The study went on for about two years. |
| B．More than 120 men took part in the study. |
| C．Health counseling helps lose almost 6 kilograms. |
| D．Wearing a fitness tracker is useful for keeping slim. |
| A．describe how the researchers were conducting the study |
| B．indicate regular counseling for weight control is necessary |
| C．convince readers to wear fitness trackers for weight control |
| D．warn women are more likely to suffer from weight problems |
