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北師大版高中英語模塊7--Unit 21 Lesson1-2

所屬教程:北師大版高中英語模塊7(選修)

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[00:01.40]Some people use gum to lose weight.

[00:03.55]They say it controls their appetite.

[00:05.77]Further research has been carried out,

[00:07.56]which shows that,

[00:08.80]if you had chewed sugar-free gum

[00:10.54]regularly for the last year,

[00:12.34]it is possible that you would have lost up to

[00:14.20]5 kilos by now.

[00:16.30]They found if people chewed 100 times

[00:18.63]per minute for 12 minutes,

[00:20.70]70 kilocalories were burned.

[00:23.29]Gum can also contain medicine.

[00:25.71]Today, there are gum products

[00:27.45]that help smokers give up their bad habit.

[00:30.44]One former smoker has appeared

[00:31.87]in an advertisement saying,

[00:33.58]"If I had used this chewing gum

[00:35.02]when I was giving up smoking ten years ago,

[00:37.68]I would have been more successful

[00:39.61]at quitting quickly and much healthier today."

[00:43.26]However, we must not forget the negative

[00:45.59]side of chewing gum.

[00:47.25]Diet specialists say we should avoid it.

[00:50.29]Why? They state that chewing starts

[00:52.78]the production of stomach acid

[00:54.33]and digestive juices.If we chew gum,

[00:57.28]it will cause our bodies to believe

[00:59.16]we are digesting food

[01:00.82]and our stomachs will produce digestive juices

[01:03.65]unnecessarily.This will make digestion more

[01:06.18]difficult and may cause feelings of sickness

[01:09.09]or even headaches.

[01:09.95]

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