Thebonearound your teeth is strong and hard, helping to hold each tooth in place.
This bone sits under the gums and is not easy to see without special pictures.
Teeth roots are safely set inside the bone, just like seeds in soil.
The bone gives teeth the support they need for biting and chewing food.
If the bone becomes weak, teeth may feel loose or begin to move.
Brushing and cleaning your mouth every day helps keep this bone healthy and strong.
牙槽骨是包裹牙齿周围的坚硬组织，能把牙齿牢牢固定在口腔中。
这块骨头在牙龈下面，平时用肉眼看不到，需要靠特殊的影像才能看到。
牙齿的牙根就像种子一样，嵌在牙槽骨里。
牙槽骨为牙齿提供足够支撑，让我们可以咬东西、嚼食物。
如果牙槽骨变弱，牙齿就会变松，甚至移位。
每天认真刷牙、保持口腔清洁，有助于让牙槽骨健康结实。
?? 完形填空（Cloze Test）
The bone under the gum helps hold each ______ in place.
（a. hair / b. tooth / c. finger）
Teeth roots are set inside the bone like ______ in soil.
（a. stones / b. seeds / c. leaves）
It is ______ to see this bone without special pictures.
（a. easy / b. hard / c. fun）
If the bone gets weak, teeth may start to ______.
（a. move / b. grow / c. laugh）
Keeping the bone healthy means brushing and ______ every day.
（a. singing / b. cleaning / c. drawing）
? 选择题（Multiple Choice）
Where is the bone that supports teeth found?
A) Above the nose
B) Under the gums
C) On the tongue
Why is this bone important for eating?
A) It helps teeth chew food
B) It stops food from tasting sweet
C) It makes teeth look bigger
What can happen if the bone is weak?
A) Teeth may feel loose
B) Teeth get whiter
C) Teeth become strong
?? 填空题（Fill in the Blanks）
This bone gives ______ to the teeth when biting food.
（可选答案：support, water, color）
The roots of teeth sit ______ the bone.
（可选答案：inside, above, outside）
Brushing and ______ help keep the bone healthy.
（可选答案：cleaning, jumping, painting）
To see this bone, you need ______ tools or pictures.
（可选答案：special, sharp, small）
完形填空
b. tooth b. seeds b. hard a. move b. cleaning #p#分页标题#e#选择题
6. B) Under the gums
7. A) It helps teeth chew food
8. A) Teeth may feel loose
填空题
9. support
10. inside
11. cleaning
12. special
??文章CEFR 等级：A1级
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