First, I put my bread on the plate, making my friend confused because in France, people are supposed to put the bread on the table. Second, I picked up the whole piece of bread and ate it. However, taking a bite of bread after cutting it into pieces is considered to be polite. Although I found all the food was delicious, I just ate a small amount of it because I thought it would be rude to eat it up. On the contrary, it's polite to finish what is on your plate.

　　To avoid such an embarrassing situation, people should learn more about different table manners of the world.

　　　　　　　　　　　　　　　　　　 　　　　[对应学生课下能力提升(十二)]

　　Ⅰ.阅读理解

　　Children who drink more milk do not necessarily develop healthier bones, researchers said on Monday in a report that stresses exercise and modest consumption of calcium­rich (含钙丰富的) foods such as tofu and broccoli (花椰菜).

　　The report drew its conclusions from previously published studies and was written by researchers from the Physicians Committee for Responsible Medicine, which advocates a strict vegetarian diet. "Under scientific study, the support for the milk myth is defeated. This analysis of 58 published studies shows that the evidence on which U. S. milk intake recommendations are based is scant." said study author Dr. Amy Lanou in a statement.

　　The U. S. government has gradually increased recommendations for daily calcium intake, largely from milk products. But the Physicians Committee's report said increasing consumption of milk products was not necessarily the best way to provide the necessary calcium intake of at least 400 milligrams per day. Other ways to get the absorbable calcium found in one cup of cow's milk include a cup of orange juice, two packages of instant oats (燕麦), two­ thirds cup of tofu, or 1­2/3 cups of broccoli, the report said. And it also pointed out that milk products provide 18 percent of the total fat energy and 25 percent of the total fat intake in the diets of American children who are developing increasing rates of obesity.

　　Frank Greer, who specializes in children's illnesses at the University of Wisconsin in Madison, said the ideal way to achieve the goal of healthy bones is to make sure children exercise and consume up to 1,300 milligrams a day of calcium.

语篇解读：本文主要讲述了仅喝牛奶不能让孩子骨骼强健，理想的方式是进行适当锻