Question

    Race walking shares many fitness benefits with running, while most likely contributing to fewer injuries. It does, however, have its own problem.

Race walkers are conditioned athletes. The longest track and field event at the Summer Olympics is the 50-kilometer race walk, which is about five miles longer than the marathon. But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times. However, it’s this strange form that makes race walking such an attractive activity.

Like running, race walking is physically demanding. According to most calculations, race walkers moving at a pace of six miles per hour would burn about 800 calories per hour, which is approximately twice as many as they would burn walking, although fewer than running, which would probably burn about 1,000 or more calories per hour.

However, race walking does not pound the body as much as running does. Runners hit the ground with as much as four times their body weight per step, while race walkers, who do not leave the ground, create only about 1.4 times their body weight with each step.

As a result, some of the injuries associated with running, such as runner’s knee, are uncommon among race walkers. But the sport’s strange form does place considerable stress on the ankles and hips, so people with a history of such injuries might want to be cautious in adopting the sport. In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique. It takes some practice.

1.What is the problem of race walking?

A.It most likely contributes to fewer injuries than running .

B.Race walkers have to obey certain rules while walking.

C.Just like running, race walking is mentally demanding.

D.Race walkers hit the ground with stronger force per step.

2.Which of the following usually burns more calories?

A.Race walking. B.Walking.

C.Running. D.Sleeping.

3.What can we infer from the passage?

A.Race walking is likely to cause knee injuries.

B.Race walking is fit for people with hip injuries.

C.Turning to experts before trying race walking is a good idea .

D.Practice more and you will surely benefit from race walking.

4.This passage is probably taken from __________.

A.a story book B.a textbook

C.a travel journal D.a sports magazine

Answer

1.B

2.C

3.C

4.D

【解析】

这是一篇说明文。文章主要讲了竞走运动的特点、对体能的要求以及可能对人们身体造成的伤害。

1.

细节理解题。根据第二段But the sport’s rules require that a race walker’s knees stay straight through most of the leg swing and one foot remain in contact with the ground at all times.（但是这项运动的规则要求竞走者的膝盖，在摆动腿的大部分时间，要保持伸直，并且一只脚要始终与地面接触。）由此可知，竞走的问题在于竞走者在行走时必须遵守某些规则。故选B。

2.

细节理解题。根据第三段According to most calculations, race walkers moving at a pace of six miles per hour would burn about 800 calories per hour, which is approximately twice as many as they would burn walking, although fewer than running, which would probably burn about 1,000 or more calories per hour.（根据大多数计算，竞走者以每小时6英里的速度运动，每小时可以燃烧大约800卡路里，大约是步行燃烧的热量的两倍，尽管比跑步要少，而跑步每小时大约可以燃烧1000或更多卡路里。）由此可知，跑步通常燃烧更多的卡路里。故选C。

3.

推理判断题，根据最后一段In fact, anyone wishing to try race walking should probably first consult a coach or experienced racer to learn proper technique.（事实上，任何想尝试竞走的人都应该首先咨询教练或有经验的竞走者，学习适当的技术。）由此推知，在尝试竞走之前，向专家咨询是个好主意。故选C。

4.

推理判断题。根据第一段Race walking shares many fitness benefits with running, while most likely contributing to fewer injuries. It does, however, have its own problem.（竞走和跑步都对健康有许多好处，同时可能很少造成受伤。然而，它也有自己的问题。）以及结合全文内容，可知这篇文章主要讲了竞走运动的特点、对体能的要求以及可能对人们身体造成的伤害。由此推知，这篇文章最可能出自一本体育杂志。故选D。