閱讀短文，根據(jù)短文內(nèi)容選擇正確答案。
Teeth have a big job.They help us chew food.They help us talk.Some teeth are round（圓的）.Some are sharp（尖的）.We use round back teeth to grind（磨碎）food.This makes the food easy to swallow（吞咽）.We use sharp front teeth to bite into food.Brushing keeps teeth clean.We should brush teeth in the morning and before bedtime.We should change our toothbrushes every three months.Visit the dentist twice（兩次）a year.Dentists clean our teeth.They check for cavities.A cavity is a part of a tooth that is not healthy（健康的）.A dentist can fix that.Kids have 20 teeth.They fall out.New ones grow in.Adults have 28-32 teeth.It is very important to take good care of our teeth.
（1）Teeth can't help us BB.
A．talk
B．cook food
C．chew food
（2）We use round back teeth to grind food because this makes the food CC.
A．nice to eat
B．difficult to eat
C．easy to swallow
（3）The word "cavity" means CCin Chinese.
A．病痛
B．牙齦
C．（牙齒的）齲洞
（4）Kid's_____teeth fall out._____new ones will grow in. BB
A．32，20
B．20，28-32
C．28，30
（5）Which of the following is RIGHT？ BB
A．Kid's teeth can work for twenty years.
B．Everyone should take good care of his teeth.
C．We should change our toothbrushes twice a year.
【答案】B；C；C；B；B
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/4/20 14:35:0組卷：4引用：1難度：0.6
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