高中课本听力北师大版模块7:Unit 21 Lesson1-2
日期:2012-03-06 15:31

(单词翻译:单击)

Some people use gum to lose weight.
They say it controls their appetite. Further research has been carried out, which shows that, if you had chewed sugar-free gum regularly for the last year, it is possible that you would have lost up to 5 kilos by now. They found if people chewed 100 times per minute for 12 minutes, 70 kilocalories were burned. Gum can also contain medicine.
Today, there are gum products that help smokers give up their bad habit. One former smoker has appeared in an advertisement saying, "If I had used this chewing gum when I was giving up smoking ten years ago, I would have been more successful at quitting quickly and much healthier today." However, we must not forget the negative side of chewing gum. Diet specialists say we should avoid it. Why? They state that chewing starts the production of stomach acid and digestive juices.If we chew gum, it will cause our bodies to believe we are digesting food and our stomachs will produce digestive juices unnecessarily.This will make digestion more difficult and may cause feelings of sickness or even headaches.
文本来源于在线英语听力室

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重点单词
  • producen. 产品,农作物 vt. 生产,提出,引起,分娩,制片
  • negativeadj. 否定的,负的,消极的 n. 底片,负数,否定
  • containvt. 包含,容纳,克制,抑制 vi. 自制
  • avoidvt. 避免,逃避
  • chewvt. 咀嚼,嚼碎,损坏 vi. 咀嚼 n. 咀嚼,咀嚼
  • appetiten. 嗜好,食欲,欲望
  • minutesn. 会议记录,(复数)分钟
  • digestionn. 消化,吸收,领悟 [生]细菌分解