1Many of the normal-weight girls were trying to lose pounds

 A.of their own free will.  B.out of sheer necessity.  C.through self-induced vomiting.  D.under the orders of their doctors．  

2What kind of institution did the lead researcher work for?

 A.A medical association.  B.A primary school.  C.A hospital.  D.A charity．  

3Unhealthy attitudes to weight, body image and food may

 A.arise from dangerous behavior.  B.lead to an eating disorder.  C.result in an increase in height.  D.keep the balance between height and weight．  

4The study showed that most of the 2．279 9irls

 A.had unhealthy attitudes to weight.  B.were overweight.  C.were on a diet.  D.had healthy weights。  

5Which of the following statements is probably NOT true?

 A.The surveys were conducted in a period of l o years.  B.The girls ranged in age from 10 to 14.  C.Only 7.2 percent of children in the country are overweight.  D.Over 30 percent of the girls considered themselves overweight．   2、(二)Stop Eating Too Much"Clean your plate!" and "Be a member of the clean-plate club!" Just about every kid in the US has heard this from a parent or grandparent．Often, it's accompanied by an appeal："Just think about those starving orphans（孤儿）in Africa!" Sure, we should be grateful for every bite of food．Unfortunately, many people in the US take too many bites．Instead of staying "clean the plate", perhaps we should save some food for tomorrow．According to news reports, US restaurants are partly to blame for the growing bellies （肚子）．A waiter puts a plate of food in front of each customer, with two to four times the amount recommended by the government, according to a USA Today story．Americans traditionally associate quantity with value and most restaurants try to give them that．They prefer to have customers complain about too much food rather than too little．Barbara Rolls, a nutrition（营养）professor at Pennsylvania State University, told USA Today that restaurant portion sizes began to grow in the l 970s, the same time that the American waistline（腰围）began to expand．Health experts have tried to get many restaurants to serve smaller portions．Now, Apparently, some customers are calling for this t00．The restaurant industry trade magazine QSR reported last month that 57 percent of more than 4．000 people surveyed believed restaurants served portions that were too large; 23 percent had no opinion; 20 percent disagreed．But a closer look at the survey Indicates that many Americans who can’t afford fine dining still prefer large portions．Seventy percent of those earning at least $ 150,000 per year prefer smaller portions; but only 45 percent of those earning less than$25,000 want smaller．It's not that working class Americans don't want to eat healthy．It's just that, after long hours at low-paying jobs, geeing less on their plat