How to protect your teeth
    小題1:    . The first of twenty being to grow when you are over six months old. The second set of thirty-two grows from the age of six until you are about twenty-one years old.
   小題2:    , you must drink plenty of milk and eat greens.
    小題3:   . Then little food will be left on or between them to cause decay(導(dǎo)致蛀牙). Make sure that you turn the brush and go up and down as well as brushing side ways. Use dental floss(牙線)to make sure all food is removed from in between each tooth, if you cannot brush your teeth after eating, raise them with water, or eat an apple or a carrot.
    小題4:  . If there is a hole in a tooth, he or she will fill it. If you do not have it filled, then the hole will grow larger. When a hole grows too big,     小題5:  . It is better to keep all your second set of teeth for as long as possible. Filling a gap where a tooth has come out with a kind of bridge and using a false tooth costs a lot of money.
A. To help your teeth grow strong.
B. You should brush your teeth after each meal.
C. Carrots and apples are good for your teeth.
D. The tooth may have to be taken out.
E. Everyone should have a set of good teeth.
F. Try to visit a dentist every six months.
G. Every person has two set of teeth.
 

小題1:G
小題1:A
小題1:B
小題1:F
小題1:D

小題1:從后面的The first of twenty being …..,The second …可知每個(gè)人都有兩幅牙。選G
小題1:從后面的句子：you must drink plenty of milk and eat greens.可知是為了讓牙齒更強(qiáng)壯。選A。
小題1:從后面的句子：Then little food will be left on or between them to cause decay(導(dǎo)致蛀牙).可知每頓飯后要刷牙。選 B
小題1:從后面的句子：If there is a hole in a tooth, he or she will fill it.可知是六個(gè)月要看一次牙醫(yī)。選 F
小題1:從前面的句子：When a hole grows too big, 可知這個(gè)牙就要被拔出，選D
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