20200615打卡D821万思乐学Vlearn小西妈双语工程1801期136号Damon

美友47485781

牙齿

蛀牙

细菌

牙龈

景物

坚固

含糖

牙本质

这些

镜头

复述《Tall tale》

看牙

We have a dentist appointment this morning.It's time to go to the dentist for your checkups.

Let's go tell the nice lady / receptionist at the reception desk desk that we are here.

Then, we have to wait for them to call our number.

Here is the waiting room with chairs to sit on.

You can listen to your listener until it is time for your checkups.

The dentist is ready to see you now.

Let's go to Consulting Room 2. 2号诊室。

Getting a Checkup at the Dentist

检查牙齿

Dentist: Hello! How are you today?Can you climb into this big chair for me so I can look at your teeth?

You can climb into the chair now. The dentist is pressing a butt on and the chair tips slightly backward.

Great, now I need you to open your mouth really wide so the dentist can see those teeth.

How do the dentist see the backs?

With this little mirror.

Then the dentist used a small mirror to look for holes called cavities in your teeth.

You're doing a good job brushing them.

But you still need to take extra care of the mowers at the back of your mouth. Right now, There is a sticky layer on them. This is called plaque.牙菌斑 It can cause cavities. So you need to brush it away.

Tools:

　

While the dentist checked your teeth. I looked at other tools on his work tray.

There were little picks, a scraper, a tamper填塞者 and a yanker.

There were some other interesting dentist's things: A water squirter for rinsing and an air squirter for drying, and a little drill on the end of a big hinged arm for cleaning out a cavity.

What's this tube for?

The suction tube will keep your mouth dry.

Here is the filling material.

The dentist will put the filling into the cavity.

Getting a Filling

补牙

Oops, I found a tiny cavity in the last of your baby molars.

I'm going to put a filling here. A filling is a kind of paste that dries hard. It will keep the cavity from getting bigger and giving you a toothache.

Now I'm going to clean your teeth with these special tools. They might tickle your mouth a little. So if you feel any discomfort, please raise your left hand to let me know.

Let me clean the bad part of your tooth.

The dentist cleaned out the cavity using a drill. His assistant used a suction tip to suck out any saliva or spit.

Next the dentist used an air jet to blow air into the cavity. This dried the cavity so the filling would stick.

Then he pushed the filling neatly into the cavity. He gently tampered 夯实 the filling down and scraped it smooth.

Here is a cup of water to rinse out your mouth.Have some mouthwash. Rinse and spit!

A final rinse,now you can jump down - as good as new.

Well done!

Here is a sticker of a thumb.

You were a very brave boy.

I am very proud of you.

涂氟

Now I'm going to clean your teeth with these special tools. They might tickle your mouth a little.And then I will put some fluoride 氟on your teeth to keep them healthy and strong.

Fluoride读作['flɔraid]。

比较一下几个表达牙齿坚固的词：

Strong：整体牙齿健康、坚固

Firm：指牙结实地长在牙龈里，如：

Since you are young, your teeth are firm in your gum.

因为你还年轻，牙齿坚固地长在牙龈里。

Sturdy: 指牙齿密度大，能咬硬的东西。

Your teeth are not sturdy enough to bite it open.

你牙齿没那么坚固，别想着用牙把它咬开。

Grow permanent teeth

换牙

One day you wake up in the same old bed ,in the same old pajamas, and yawn the same old yawn. But something will be different. You may have a loose tooth. You may can not help pushing it back and forth with your tongue,Maybe it will come out. Or you may need to go to the dentist. The dentist may grip your tooth with a piece of gauze, give a tug and out it comes.

Then you can keep it, put it under your pillow and the tooth fairy will take it away and leave the new corn in its place. The next morning, you can plunge your hand under your pillow and you may find a shiny new coin where the tooth has been.

You will lose your baby teeth. New incisors 门牙，切齿 will grow at the front .Soon your other baby teeth will get wobbly and fall out. You will have 32 new teeth in all.

Taking Care of Teeth

爱护牙齿

Dentist: I'll show you how to take care of your teeth and what will happen if you don't take care of them properly.

The fluoride in the toothpaste helps protect our teeth.牙膏里的氟可以帮助保护我们的牙齿。

Sweets and sodas are bad for teeth.

英式英语用sweet foods和fizzy drinks。

Don't have sugary drinks or candy very often,and brush your teeth twice a day.

Let me show you how to brush your teeth correctly.

Squeeze a PEA-sized blob of toothpaste on your toothbrush and gently brush it in little circles.

Remember to brush your teeth twice a day, Once in the morning. And once before you go to bed.

问题1：What do we use our teeth for?

答案：chew, say sounds, smile, bite, talk, eat, whisper

问题2：How do we keep our teeth healthy?

答案：brush our teeth, eat healthy food, drink milk, floss, go to the dentist, rinse, protect them, mouth wash

问题3：What foods are bad for our teeth?

答案：candy, soda, gum, brownies, sweets and goodies, sugar, ice cream, popcorn

演动画片

Good morning friends.

早上好，朋友们。

I am very proud of my shiny healthy set of teeth.

我为我闪亮健康的牙齿感到骄傲。

But it wasn’t always the case.

但情况并非总是如此。

I had a problem of cavities and it was very painful.

我曾经有蛀牙，并且很痛。

So today let me warn you of cavities.

所以今天让我提醒大家关于蛀牙的知识。

Zoom in 跟随镜头推近

知识点：

zoom in 和zoom out是摄像技术用语。zoom in 指(照相机等)用变焦距镜头使景物放大,即将景物推近;zoom out刚好相反,表示用变焦距镜头使景物缩小,即将景物拉远。”

It all started with my trip to the dentist.

一切都是从我去看牙医开始。

I rushed to the dentist to solve the mystery behind my tooth decay.

为了揭开我烂牙的秘密，我赶紧去看了牙医。

As I sat anxiously on that chair things got intense.

当我焦虑地坐在那把椅子上时，事情变得紧张起来。

As a dark figure appeared with dental tools and wires in his hands.

一个黑影出现了，手里拿着牙科工具和线。

He gazed into my mouth examined thoroughly.

他凝视着我的嘴，仔细端详着。

And then in his calm soothing and friendly voice, he said it is cavities.

然后他用平静而友好的声音告诉我，“那是蛀牙。”

But the question is what are cavities and what causes it?

那么问题来了，什么是蛀牙，又是什么引起的呢？

Cavities are permanently [ˈpɜːrmənəntli] dented areas in the hard surface of a teeth.

蛀牙是牙齿坚硬表面上的永久性凹陷区域。

permanently[ˈpɜːrmənəntli]

adv. 永久地，长期不变地

Dented ['dentid]

adj. 有凹痕的

That build up into tiny holes.

逐渐形成了一个个小洞。

They are mainly frequent in children, teenagers and older adults.

蛀牙经常发生在儿童，青少年和老年人中。

But anyone who has teeth can get cavities ['kævəti] including infants.

但是任何有牙齿的人都可能有蛀牙，包括婴儿。

cavities ['kævəti]

n. 腔（cavity 的复数形式）；[医] 空洞；蛀牙；插线孔

So what causes these holes or degradation [ˌdeɡrəˈdeɪʃn]?

那么是什么导致了这些孔洞或退化呢？

degradation [ˌdeɡrəˈdeɪʃn]

n. 退化；降格，降级；堕落

Well, it is caused by a particular bacterium [bæk'tɪrɪəm] that resides in a mouth without paying any rent.

那是由一种特定的细菌引起的,它们可以轻而易举地进入我们的嘴里。

bacterium [bæk'tɪrɪəm]

n. [微] 细菌；杆菌属

Let’s call these unwanted guests Germies ['dʒɝmi].

让我们称这些不速之客为细菌吧。

germy ['dʒɝmi]

adj. 带有细菌的

These germies begin to expand their family.

这些细菌不断繁殖。

Our eating habits play a vital [ˈvaɪtl] role in this process.

我们的饮食习惯在这一过程中起着至关重要的作用。

vital [ˈvaɪtl]

adj. 至关重要的；生死攸关的；有活力的

The leading causes of tooth decay [dɪˈkeɪ] are sugary [ˈʃʊɡəri] sticky foods and drinks.

蛀牙产生的主要原因是食用含糖的、黏牙的食物和饮料。

decay [dɪˈkeɪ]

sugary [ˈʃʊɡəri]

Tooth decay occurs when foods containing sugar gets trapped between your teeth. 当含糖的食物留在牙齿之间时，就会发生蛀牙。

And if not wholly cleaned, these germies consume the trapped food specifically [spəˈsɪfɪkli] sugar, and use it as the energy source.

如果没有进行彻底的清洁，这些细菌会吸收这些残留的食物，特别是糖,用作它们生存的能量来源。

specifically [spəˈsɪfɪkli]

Generating an acidic [əˈsɪdɪk] by-product such as lactic ['læktɪk] acid[ˈæsɪd].

同时产生酸性的副产品，如乳酸。

acidic [əˈsɪdɪk]

lactic ['læktɪk]

acid [ˈæsɪd]

This acid digs a corridor for germies.

这种酸性物质为细菌开辟了一条

Corridor [ˈkɔːrɪdɔːr]

n. 走廊

Into the tooth secondary layer called dentin ['dɛntɪn].

去到牙齿的第二层-牙本质-的道路。

Secondary [ˈsekənderi]

adj. 第二的；中等的；次要的；中级的

Once the passage expands [ɪkˈspænd] beyond dentin ['dɛntɪn] and nerves [nə:vs] become exposed.

一旦这一通道跨越牙本质，神经就会暴露出来。

The bacteria’s [bækˈtɪriə] invasion [ɪnˈveɪʒn] begins causing unbearable [ʌnˈberəbl] pain.

细菌的入侵开始引起难以人手的疼痛。

But don’t worry my friends.

但是不要担心，我的朋友们。

There are ways to save up teeth and fight these notorious [noʊˈtɔːriəs] germies.

有很多方法可以保护牙齿，来对抗这些臭名昭著的细菌。

Let’s have a look at them.

让我们来看一看吧！

Number one, brush regularly with fluoridated ['flʊərɪ,detid] toothpaste.

第一，经常用含氟牙膏刷牙。

And add fluoride [ˈflɔːraɪd,ˈflʊraɪd] in your water.

在水中加入氟化物。

Number two, floss [flɑːs] daily.

第二，每天用牙线

This habit helps promote healthy teeth as well as healthy gums.

这个习惯有助于促进牙齿，牙龈健康。

Gums [ɡʌms]

n. 牙龈，树胶；牙床（gum复数形式）

Number three, and the most most difficult one to follow.

第三，也是最最难去遵循的一点。

Minimize [ˈmɪnɪmaɪz] sugary foods and drinks that feed the bacteria in your mouth.

少吃含糖的食物和饮料，因为它们会滋生口腔中的细菌。

minimize [ˈmɪnɪmaɪz]

vt. 使减到最少；小看，极度轻视

Trivia time [ˈtrɪviə]

小知识时间。

Tooth enamel [ɪˈnæml] is the hardest matter in the human body.

牙釉质是人体中最坚硬的物质。

enamel [ɪˈnæml]

n. 搪瓷；珐琅；瓷釉；釉质；指甲油

However we do not recommend that you use your poly [ˈpɑːli] whites to open bottle caps, chew plastic toys, or bite your sibling.

但是我们并不提倡你用你的牙齿去咬瓶盖、吸管、甚至咬你的兄弟姐妹。

Poly [ˈpɑːli]

n. polytechnic的缩写）工艺专科学校；科技学校；工业学校(或大学)

adj. （polyester的缩写）聚酯的，涤纶的

Sibling [ˈsɪblɪŋ]

n. 兄弟姊妹；民族成员

So, here goes my friends. These small steps can help you fight the stubborn [ˈstʌbərn] monstrous [ˈmɑːnstrəs] armies of germies.

好啦，朋友们，这些小贴士可以帮助你对抗可恶的口腔细菌大军。

Stubborn [ˈstʌbərn]

adj. 顽固的；顽强的；难处理的

Monstrous [ˈmɑːnstrəs]

adj. 巨大的；怪异的；荒谬的；畸形的

And keep your teeth fit healthy and white just like mine.

并且可以使你的牙齿像我的牙齿一样健康白净。

So that you can click a perfect selfie every time.

每次你都可以拍出一张完美的自拍。

Selfie [ˈsɛlfɪ]

n. 自拍照

So friends don’t forget to take care of your teeth.

所以，朋友们，千万不要忘了好好照顾你的牙齿哦！

Tune in next time for more fun facts. This is me.

欢迎下次一起学习更多有趣的知识，好啦。

Zooming out.

网课一节

体操打卡