浙江省杭州市塘栖中学高中英语必修三教学课件：Unit4Astronomythescienceofthestars-Listeningexercise.ppt

Listening; HOW AN UNBALANCED DIET CAN AFFECT YOUR HEALTH Wang Peng went to the library, where he happened to meet an expert on diets. He asked him for help. WP = Wang Peng E = Expert;WP: Hello. Can you help me, please? I want to find out more about balanced _____. E: Of course. A balanced diet needs ______ food like rice and noodles, body-building food like fish and meat for _______ and fat, and protective food like fruit and vegetables for fibre and ________. WP: Yes, but does it matter how _____ rice, noodles and sugar I eat?;E: Yes. If you eat too much, you may _______ obese. This means you are too fat and it may lead to other ________. However, if you ______ eat enough rice, noodles or sugar, you’ll get tired ______. WP: I see. I’ll be _______ about that. Does it _______ how much fish, meat or cheese I eat? E: Too much can also make you fat, but if you don’t eat enough, your ______ won’t ; grow strong. A long time ago, children who didn’t eat enough vitamin ___ and body-building food didn’t grow _______ legs. They got an illness ______ rickets. WP: Oh dear! Do people still have the problem? E: __________. WP: Then what about fruit and vegetables? How much _______ I eat?;E: You ought to eat about ____ big spoonfuls of different fruit and vegetables every day. WP: Really? I didn’t know that. E: Yes. In the _____ century sailors at sea used to find that their _____ fell out and they had bad spots on their _____. They got it ________ they didn’t eat enough fruit and vegetables. The ______ is called scurvy.;WP: Goodness! What about now? E: It’s very _____ now. People eat more fruit and vegetables. You need protective food like that for ______ skin and _______ eyes. WP: Thank you very much. You have _____ me a lot to think about.;Workbook-Listen