Have you ever heard of "Who knows that each bowl of rice is the fruit of hard toil （苦工）?" It tells us not to waste food.

As we all know, every bit of food we eat comes from hard work. It's not easy to turn a seed（种子）into the food you can eat. Recently, to help students better understand this, the No. 4 Middle School in Huzhou, Zhejiang held an activity. Under the hot sun, hundreds of students went to a field to experience farming. With the help of others, they learned how to grow rice and pick vegetables. After the activity, they better understood how hard farming was.

Many countries are facing the food-shortage problem now. According to the UN, there are 820 million people living in hunger today. Our country used to face this problem, too. In the 1960s, because there wasn't much food, many people even died from hunger. In 1973, Yuan Longping and his team succeeded in the development of hybrid（杂交）rice. They made great progress in solving our food-shortage problem. Many scientists like Yuan are always going out of their way to solve this problem now.

When we waste food, we waste not only food but also resources（资源）for growing, transporting and cooking the food. These all take energy, time and water. Wasting food also creates greenhouse gas. So food waste is bad for the environment, too.

Please value what you're eating.

41. The poem tells us not to______.

A．

throw food

B．

waste food

C．

pollute food

D．

hate food

42. Students from Huzhou______ on the farm.

A．	sold seeds	B．	grew vegetables
C．	understood each other	D．	experienced farming

43. Chinese people ______ in the 1960s.

A．	had a hard life	B．	died from illnesses
C．	had much food	D．	ate a new kind of rice

44. Saving food is______ for the environment.

A．

good

B．

bad

C．

safe

D．

meaningless

45. The main idea of this passage is ______.

A．	how we should save food
B．	why we should value food
C．	where we can experience farming
D．	how we should protect the environment