英语听力 学英语,练听力,上听力课堂! 注册 登录
> 在线听力 > 有声读物 > 英语杂志 > 英语听力文摘 >  第760课

吉林十一选五开奖直播:英语听力文摘747 喝茶可以预防癌症?

吉林体彩十一选五 www.6yyxf.com 所属教程:英语听力文摘

浏览:

xijijun

2018年11月15日

随身学
扫描二维码方便学习和分享
//online2.tingclass.net/lesson/shi0529/0007/7643/747.mp3
//image.tingclass.net/statics/js/2012
Drink Tea To Ward Off Cancer?

"Dear A Moment Of Science, Can you settle a debate between my friend and me? She says that green tea has some magic property that fights cancer. I say this is bogus. What’s the scoop?"

Well, it’s not magic, but it can help in the fight against cancer. Studies have shown that people who drink green tea develop fewer cancerous tumors, and animal studies also support this idea. Some researchers at Purdue University have a guess why.

Green tea contains a powerful antioxidant called EGCg, whose full name is just too darn long to write out. But this chemical seems to counteract an enzyme called quinol-oxidase. That’s an enzyme cancer cells need in order to reproduce. When they can’t reproduce, cancerous cells die off instead of becoming dangerous.

Green tea isn’t the only beverage that contains EGCg; black tea has it as well, just not as much of it. Again, there’s no magic pill for avoiding cancer. Drinking green tea may be a good counter-measure, but bear in mind that it takes a lot to get the possible benefit. And of course there is the old stand-by good-health stuff: diet and exercise.

内容来自 听力课堂网://www.6yyxf.com/show-7643-432592-1.html
用手机学英语,请加听力课堂微信公众号:tingclass123
用户搜索

疯狂英语 英语语法 新概念英语 走遍美国 四级听力 英语音标 英语入门 发音 美语 四级 新东方 七年级 赖世雄 zero是什么意思