Losing Weight

　　Girls as young as 1 0 years old are dieting and in danger of developing unhealthy attitudes　about weight，body image and food，a group of Toronto researchers reported Tuesday．
　　Their study of 2,279 girls aged 10 to 14 showed that while the vast majority had healthy　weights，nearly a third felt they were overweight and were trying to lose pounds．Even at the tender agez of 10，nearly 32 per cent of girls felt“too fat'’and 31 per cent said they were trying to diet．来源：考试大
　　McVey，a researcher at．the Hospital for Sick Children in Toronto，and her colleagues　analyzed data collected in a number of surveys of southern Ontario school girls between 1 993 and 2003，reporting their findings in Tuesday’s issue of the Canadian Medical Association Journal．来源：考试大
　　Nearly 80 per cent of the girls had a healthy body weight and only 7．2 per cent were　considered overweight using standard weight-to．height ratios．Most researchers suggest the rate of overweight children in this country is several times higher than that figure．
　　Nearly 30 per cent of the girls reported they Were currently trying to lose weight，though few admitted to dangerous behavior such as self-induced vomiting．
　　Still，a test that measured attitudes towards eating showed 10．5 per cent of survey　Participants were already at risk of developing an eating disorder．
　　We’re not talking about kids who’ve been prescribed a diet because they’re above average weight or overweight. We’re talking about children who are within a healthy weight range。And they have taken it upon themselves to diet to lose weight，”McVey said，acknowledging she found the rates disturbing．She said striking a balance between healthy weights and healthy attitudes towards food and body image is a complex task，with no easy solutions．
 
词汇：
overweight adj．超重的；过重的来源：考试大
induce vt．引起，导致来源：考试大
prescribe vt．处方；开药；嘱咐来源：考试大
 
1．The study showed that most of the girls
  A)were overweight．
  B) were on a diet．来源：考试大
  C)had unhealthy attitudes about weight
  D)had a healthy body weight．来源：考试大
 
2．What percentage of the girls considered themselves overweight?
  A)Nearly 80 percent．来源：考试大
  B)7．2 percent．
  C)Nearly 30percent．来源：考试大
  D)10．5 percent．
 
3．The survey participants were girls
  A)whowere 10．来源：考试大
  B)who were 14．
  C)who were 10 to 14．
  D)who were 10 to 18．来源：考试大
 
4．  What kind of institution does the lead researcher work with?
  A)A schoo1．
  B)A hospital．来源：考试大
  C)An association．
  D)A charity．
 
5．  Unhealthy attitudes about weight，body image and food may
  A)lead to an eating disorder．来源：考试大
  B)result from self-induced vomiting．来源：考试大
  C)make it easier to gain weight．
  D)bring about greater competition．