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
2023-06-30
66
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/2796002.html
相关试题推荐
[originaltext]Whenyoulearnaforeignlanguageyoumustlearnmorethanju
[originaltext]Youcantelltheageofatreebycountingitsringsbutthes
[originaltext]TheworldwideOrganizationoftheRedCrossstemsfromtheid
[originaltext]W:Hi,Mike,doyouhaveaminutetospare?M:Yes,Sherry,howc
[originaltext]W:Hi,Mike,doyouhaveaminutetospare?M:Yes,Sherry,howc
[originaltext]W:Hi,Mike,doyouhaveaminutetospare?M:Yes,Sherry,howc
[originaltext]M:Hi,Ashley,howisyourresearchgoingon?It’scomplicated.
[originaltext]M:Hi,Ashley,howisyourresearchgoingon?It’scomplicated.
[originaltext]M:Hi,Ashley,howisyourresearchgoingon?It’scomplicated.
[originaltext]TheformerBritishPrimeMinisterTonyBlairhassaidhedoes
随机试题
【S1】[br]【S5】A、relateB、offerC、involveD、engageC动词辨析。根据句义判断利己主义不仅仅包括维持生计等内容,i
Thepolicesuspectedthatthesectarymightbe______ofthemurder.A、guiltyB、c
女性,26岁。尿频、尿痛1周。尿常规检查:白细胞(+),红细胞(+)。抗感染治疗
关于混凝土小型空心砌块砌体工程的说法,正确的有()。A、施工时所用小砌块的龄期不
安全色是传递安全信息含义的颜色,包括哪几种颜色(A)红(B)蓝(C)黄
差动、距离、高频和接有方向元件的保护及其二次回路改变后,应用()相位仪测相位;带
经济增长通常是指在一个较长的时间跨度上,一个国家人均产出(或人均收入)水平的持续
A银行在向B公司承兑其申请的银行承兑汇票时,在汇票上未加盖规定的专用章而加盖A银
下列系统中,不属于直驱式风力发电机组成系统的是()。A.电控系统 B.防雷系
维护受试者利益,可通过以下方式予以保障,除了A.实验中若出现严重的可能危害受试者
最新回复
(
0
)