首页
登录
职称英语
[originaltext] Take care of your teeth and your teeth will take care of you.
[originaltext] Take care of your teeth and your teeth will take care of you.
游客
2024-02-01
41
管理
问题
Take care of your teeth and your teeth will take care of you. Your teeth are a living part of your body. They have nerves and blood vessels. Diseased teeth can cause pain, die and fall out. Plaque is the main enemy of healthy teeth. Everyone has plaque. It is a sticky, colorless film that coats the teeth. Plaque is always forming on the teeth, especially at the gum line. If plaque is not removed, it builds up and gets under the gum line. Plaque that is left on the teeth for some time hardens. The result is tooth decay and gum disease. The bacteria in plaque live on sugar. They change sugar into acids, which break down the tooth’s harder outer covring. If left untreated, decay goes deeper and deeper into the tooth. After a while, the decay reaches the nerves and blood vessels of the inner tooth. By the time this happens, the tooth has probably started to ache. In addition to tooth decay, there are also gum diseases to watch out for. The bacteria in plaque make poisons that attack the gums. Small pockets form around the teeth. The pockets trap more bacteria and food particles. Finally, the bone supporting the teeth is attacked and starts to shrink. Teeth become loose and may fall out. Adults lose most teeth this way. Keep your mouth healthy! When you brush your teeth, do a good job.
22. What does the speaker say about our teeth ?
23. What does the speaker say about plaque?
24. Why is sugar harmful to teeth?
25. What causes adults to lose most of their teeth according to the speaker?
选项
A、It can change into acids causing damage to their outer covering.
B、It greatly reduces their resistance to the attacks of bacteria.
C、It makes their nerves and blood vessels more sensitive to acid food.
D、It combines with food particles to form a film on their surface.
答案
A
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3412268.html
相关试题推荐
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Tom,Iheardyoufailedthetennismatch.What’swrongwithyo
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ithinktheairinthecityisseriouslypolluted.Itishorri
[originaltext]W:Ididn’texpectthedormitorytobesonoisy.Theremustbeso
[originaltext]W:Ididn’texpectthedormitorytobesonoisy.Theremustbeso
[originaltext]W:Ididn’texpectthedormitorytobesonoisy.Theremustbeso
随机试题
Hispeersrespectedhimbecausehewasboth(i)______and(ii)______:steadfasti
Itisamarketwhichsalesvaluemightbemorethan10billionyuan.A、amarketw
[originaltext]Wearegoingtotalktodayaboutthemoon,ourmoon.Firstof
Nooneshouldbeforcedtowearauniformunderanycircumstances.Uniforms
山西永济永乐宫是元代()的典型建筑。A.道教 B.佛教 C.喇嘛教 D.儒
质量为m的物块A,置于与水平面成θ角的斜面B上,如图所示。A与B间的摩擦系数为f
路基路面的弯沉值可以表征其整体承载能力,是我国路基路面施工质量评定验收和路面使用
下图为iPhone4S的主要零部件产地示意图。下列关于iPhone4S主要零部件
A.化学药品B.中药C.生物制品D.进口药品分包装E.进口药品Z代表
建立健全员工培训激励与约束机制的“三不准”政策是指()A.不经培训不准就业
最新回复
(
0
)