Bacteria Loves Your Mouth 细菌钟爱你的嘴
时间：2018-12-28 作者：英语课 分类：初学者听力文摘精选
Did you know that there could be more bacteria living in your mouth than there are people on earth?
你知道吗，寄居于你口中的细菌有可能比全世界的人口数还多？
Bacteria love our mouths because the livin’ is easy–there’s plenty of food and water, and a fairly constant temperature of 95 degrees. The vast majority of these bacteria don’t cause any problems. Some even do community service, cleaning out the food between our teeth without harming the teeth at all!
细菌钟爱我们的嘴是因为口腔中的环境很舒适，不仅有充足的食物及水，其温度也稳定在95华氏度。口腔内绝大多数的细菌不会产生什么问题。有一部分甚至是有益的，义务清理牙缝中的食物残渣，保护我们的牙齿！
But there is one type of bacteria that wreaks 1 havoc 2 in the mouth by causing cavities. Like most people, the bacterium 3 streptococcus mutans loves to eat sugar. In the process, it converts sugar to an acid that corrodes 4 teeth and causes cavities. Saliva 5 can neutralize 6 some of that acid and prevent it from damaging teeth.
但是有一种细菌会对口腔形成危害，造成蛀牙。细菌中的变形链球菌与许多人一样喜爱吃糖，通过将糖转化为酸，进而腐蚀牙齿，形成蛀洞。唾液能够中和部分酸以防牙齿被损害。
But these days, most of us eat so much sugar that our saliva can’t neutralize all the acid that streptococcus mutans produces.
然而现在大部分人摄入的糖分过多，以至于唾液无法中和所有的酸，变形链球菌随即而生。
What’s a sugar addict 7 to do?
那么爱吃糖的人该怎么办呢？
If you brush and floss every day, that physically 8 disrupts the colonies of bacteria enough to keep the populations under control, somewhere between one thousand and one hundred thousand per tooth. The fluoride in toothpaste and tap water hardens tooth enamel 9, making it more resistant 10 to the acid produced by streptococcus mutans.
如果你每天刷牙并使用牙线清理牙齿，可有效阻断细菌繁殖，将每颗牙的细菌数控制在一千至十万。牙膏中的氟化物及自来水也能够坚固牙釉质，使牙齿更好的抵御变形链球菌所产生的酸。
Fluoride also helps saliva repair parts of the tooth that have already been damaged by the acid. And, last but not least, it helps not to feed the critters too much of their favorite food: sugar!
氟化物还能够帮助唾液修复被酸损害的部分牙齿。最重要的一点就是不要给细菌它们的最爱——糖。
- Worshipping the sun wreaks havoc on skin. So does smoking. 过度晒太阳会毁掉好皮肤，吸烟也是如此。
- His hard work wreaks havoc in his personal life. 他拼命工作破坏了他的私人生活。
- The earthquake wreaked havoc on the city.地震对这个城市造成了大破坏。
- This concentration of airborne firepower wrought havoc with the enemy forces.这次机载火力的集中攻击给敌军造成很大破坏。
- The bacterium possibly goes in the human body by the mouth.细菌可能通过口进入人体。
- A bacterium is identified as the cause for his duodenal ulcer.一种细菌被断定为造成他十二指肠溃疡的根源。
- Corruption corrodes public confidence in a political system. 腐败可削弱公众对政治制度的信心。
- Iron corrodes unless it is greased or kept clean. 如果不涂油或保持清洁铁便会腐蚀。 来自《现代汉英综合大词典》
- He wiped a dribble of saliva from his chin.他擦掉了下巴上的几滴口水。
- Saliva dribbled from the baby's mouth.唾液从婴儿的嘴里流了出来。
- Nothing could neutralize its good effects.没有什么能抵消它所产生的好影响。
- Acids neutralize alkalis and vice versa.酸能使碱中和碱，亦能使酸中和。
- He became gambling addict,and lost all his possessions.他习染上了赌博，最终输掉了全部家产。
- He assisted a drug addict to escape from drug but failed firstly.一开始他帮助一个吸毒者戒毒但失败了。
- He was out of sorts physically,as well as disordered mentally.他浑身不舒服，心绪也很乱。
- Every time I think about it I feel physically sick.一想起那件事我就感到极恶心。