听力文摘：喝茶可以预防癌症?

"Dear A Moment Of Science, Can you settle a debate between my friend and me?

亲爱的科学一刻,您能否解决我和朋友之间的一场争论么？

She says thatgreen tea has some magic property that fights cancer.

她说绿茶具有抗癌的魔力，我觉得这不切实际。

I say this is bogus. What's the scoop¹?"

事实的真相到底如何呢？

Well, it's not magic, but it can help in the fight against cancer.

它当然没有魔力，但是的确有助于抗癌。

Studies have shown that peoplewho drink green tea develop fewer cancerous tumors, and animal studies also support this idea.

研究显示，喝绿茶的人激发恶性肿瘤较少，动物研究也支持这一说法。

Some researchers at Purdue University have a guess why.

普渡大学的一些研究者对此进行了猜想。

Green tea contains a powerful antioxidant called EGCg, whose full name is just too darn long to write out.

绿茶包含了一种有效的抗氧化物茶多酚，这里就不赘述其冗长的全名了。

But this chemical seems to counteract² an enzyme³ called quinol-oxidase.

但这种化合物似乎可以抑制苯二酚氧化酶。

That's anenzyme cancer cells need in order to reproduce⁴.

复制癌细胞需要用到这种酶。

When they can't reproduce, cancerous cells dieoff instead of becoming dangerous.

若癌细胞无法复制，它们就会消亡从而不（对人体）造成威胁。

Green tea isn't the only beverage⁵ that contains EGCg; black tea has it as well, just not as much of it.

绿茶并非唯一含有茶多酚的饮料；红茶也包含这种物质，只是没那么多。

Again, there's no magic pill for avoiding cancer.

再次澄清一下，没有避免癌症的神奇药片。

Drinking green tea may be a good counter-measure, but bear in mind that it takes a lot to get the possible benefit.

喝绿茶可能是一个好对策，但记住，这可需要喝很多才能起效。

And of course there is theold stand-by good-health stuff: diet and exercise.

当然，还得佐以老生常谈的健康措施：均衡饮食，合理运动。

1 scoop   

n.铲子，舀取，独家新闻；v.汲取，舀取，抢先登出

参考例句：

• In the morning he must get his boy to scoop it out.早上一定得叫佣人把它剜出来。
• Uh,one scoop of coffee and one scoop of chocolate for me.我要一勺咖啡的和一勺巧克力的。

2 counteract   

vt.对…起反作用，对抗，抵消

参考例句：

• The doctor gave him some medicine to counteract the effect of the poison.医生给他些药解毒。
• Our work calls for mutual support.We shouldn't counteract each other's efforts.工作要互相支持，不要互相拆台。

3 enzyme   

n.酵素，酶

参考例句：

• Above a certain temperature,the enzyme molecule will become unfolded.超过一定温度，酶分子将会展开。
• An enzyme that dissolves the fibrin of blood clots.能溶解血凝块中的纤维的酶。

4 reproduce   

v.生育，繁殖，复制，重做

参考例句：

• The machine can reproduce a key in two minutes.这机器能在两分钟内复制一把钥匙。
• The picture will reproduce well.这照片会印得很清楚。

5 beverage   

n.(水，酒等之外的)饮料

参考例句：

• The beverage is often colored with caramel.这种饮料常用焦糖染色。
• Beer is a beverage of the remotest time.啤酒是一种最古老的饮料。