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11.Teeth are very important for our health.They will be our lifelong friends.So we should learn to protect them at a very young age.Here are some tips:
First,we should eat right.
•Don't eat too much candy or drink too much cola,or our teeth will go bad easily.
•Have more cheese,milk and yogurt to make teeth strong.
•Eat more vegetables and fruits to help clean teeth.
Second,we should keep these numbers in mind.
•2 Day Brush your teeth at least twice a day:in the morning and before bedtime.
•2-3 Minutes Brush for at least two to three minutes every time.
•3 Months Get a new toothbrush every three months.
•6 Months Go to the dentist every six months for a check-up.
44.If we want to protect our teeth,we must protect themC.
A.at the age of 12     
B.at an old age       
C.at a very young age
45.How often should we go to the dentist?A
A.Every 6 months.
B.Every year.
C.Every month.
46.How may brushes do we need in a year according to the text?C
A.One    
B.Two      
C.Four.
47.What can help clean our teeth?B
A.Candy and cola.
B.Fruit and vegetables.
C.Cheese,milk and yogurt.

分析 牙齿对我们的健康非常重要,它们将是我们一生的朋友,本文介绍了如何保护我们的牙齿.

解答 CACB
44.C细节理解题,根据So we should learn to protect them at a very young age.可知如果我们想保护我们的牙齿,我们必须在很小的时候保护它们.故答案为:C.
45.A细节理解题,根据6 Months Go to the dentist every six months for a check-up可知应该每六个月去看牙医检查一次牙齿,故答案为:A.
46.C细节理解题,根据3 Months Get a new toothbrush every three months可知应该三个月换一次牙刷,即一年需要四个牙刷,故答案为:C.
47.B细节理解题,根据Eat more vegetables and fruits to help clean teeth可知多吃蔬菜和水果来帮助清洁牙齿,故答案为:B.

点评 做题时要在理解好文意的基础上,与题目有机的结合,从文章中找到相关细节性的句子与选项细细比对,进行选择或推理判断,找出符合文章内容的正确答案.做题注意灵活,有时可采用排除法或直选法确定出最终答案.

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