题目内容：

It seems school children all over the world complain about their school food. Cherie Blair, wife of former British Prime Minister Tony Blair, said that she would prepare a packed lunch for her son if school dinners do not improve. So what do students of your age eat for lunch at school?

Japan High schools have canteens, which serve everything from noodles to rice, but not burgers and chips. Other children bring food from home such as cold rice balls, meat or fish, pickles (泡菜) and vegetables.

Students take home a menu for the coming month containing notes on nutrition value. Twice a year parents are invited to have a taste of the food. The class with the fewest leftovers (剩饭 ) at the end of the month receives a prize.

The United States A typical menu from a US school is made up of a hamburger with fried potatoes or roast chicken, lettuce and pickles, fruit and cookies. School lunches must also provide at least one-third of the daily dietary allowances (定量 ) of protein, vitamin A, vitamin C, iron, calcium (钙) and calories.

Australia Meat pies, sausage rolls and hot dogs are all traditional dishes in Australian school shops. But as the nation pays more attention to children's health, healthier foods have started to find their way onto school menus.

Many schools have used a traffic light system. The sale of red-labeled foods, including pastries, chocolate and soft drinks, is served only twice a week. Healthier green-labeled foods such as sushi (寿司),sandwiches, corn and watermelon, however, are available every day.

In some schools, students have a choice of up to 89 foods to choose from, including popcorn and rice.

South Africa  Most of South Africa's schools do not serve meals at all. Classes end at l:30 p.m. and students get their own lunches. Many students bring food from home, usually sandwiches.

Fast food and fried food sell the best among students, which has led to a rise in obesity among children. But as more people began to realize the fact that being too fat may cause different diseases, some schools in towns have led the way towards better nutrition. Now students at these schools are provided with lunches of porridge with vegetables, such as cabbages, onions, beans, carrots and tomatoes.

1.What does the underlined word "obesity" in the last paragraph probably mean?

A. Violence.      B. Sadness.

C. Famine.      D. Overweight.

2.We can infer from the passage that       _.

A. a typical menu from a US school consists of enough nutrition

B. most students in South Africa eat their lunch at home

C. many schools in Australia have traffic lights outside their school

D. you can have whatever you like in school canteens in Japan

3.What is the main idea of the passage?

A. Schools should try to satisfy the needs of students.

B. Schools serve different foods from country to country.

C. Food served in America is the best of all.

D. School children all over the world dislike their school food.

4.The article is meant for         .

A. school lunch suppliers      B. schoolmasters

C. students of your age      D. nutritionists