Anumberofscientificstudieshavesuggestedthatrepeatedlyhe...

问题详情：

A number of scientific studies have suggested that repeatedly heading a football could increase the risk of developing dementia(痴呆症) in later life.

In 2002, former England international footballer Jeff Astle died aged 59. A coroner(验尸官) said that Astle died from a brain disease likely to have been caused by “repeated small damages to the brain” related to heading a heavy leather football.

Dr. Scott Delaney, research director of emergency medicine at McGill University Health Center in Montreal, Canada, has also researched soccer-related head injury and agrees that head-to-head or elbow-to-head blows are the real risk.

In 2007, Delaney carried out a study on footballers ages between 12 and 17 that showed they were half as likely to be concussed(使脑部受到震荡) wearing headgear(帽) than without.

He said youngsters have a higher risk of head injury than adults because their heads are thinner and less able to absorb shock. To make matters worse, their neck muscles aren’t as well developed and they often lack the correct heading technique that can help throw away the force of the ball.

Delaney recommends that children wear headgear when playing football and says his two eldest children wear head protection playing the sport. But he admits that children can admits that children can be unwilling to be the first to wear head protection—especially when their football heroes play without it.

While headgear can protect footballers from being concussed during a match, no one knows the long-term effects of repeated “sub-concussive” blow to the head.

Delaney says that while there is indirect evidence that a career in soccer can lead to dementia, no one has yet found a definitive link between the two. He says proving a link would mean monitoring hundreds of footballers for three of four decades—and that would take a lot of funding.

24. According to Dr Scott Delaney’s research, what may be the most possible injuries to head?

A. Long-term effects of blows.          B. Head-to-head or elbow-to-head blows.

C. Underdeveloped neck muscles.         D. Wearing head protection.

25. Children are unwilling to wear headgear because they think ______.

A. headgear is harmful to their heads       B. headgear influences their skills

C. they mustn’t lead the fashion           D. they should follow their idols

26. What can be the most important fact to carry out the research?

A. Funding to support the research.     B. Time to look into the research.

C. Data from the footballers’ injury.      D. Influences on footballers of different ages.

27. Which might be the best title of the passage?

A. Evidence to dementia.

B. Repeated small damages to the brain.

C. Playing football may lead to brain damage.

D. Footballers should wear headgear when playing.

【回答】

BDAC

知识点：科普环保类阅读

题型：阅读理解