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(C)
Teeth are very important for our health. So we should learn to protect them from a very young age. Here is some advice:
First, we should have healthy eating habits.
Don't eat too much sugar or drink too much cola, or our teeth will go bad easily.
Have more cheese, milk and yogurt to make our teeth strong.
Eating more vegetables and fruit is good for our teeth.
Second, we should keep these numbers in mind.
One day—Brush our teeth at least twice a day: in the morning and before bedtime.
2~3 Minutes—Brush our teeth for at least two to three minutes every time.
3 Months—Get a new toothbrush(牙刷) every three months.
6 Months—Go to the dentist every six months.
根据材料内容，选择最佳答案。
(
A. Two.
B. Three.
C. Four.
D. Five
(
A. at the age of 12
B. at the age of 1
C. at a very young age
D. at an old age
(
A. Every 6 months.
B. Every year.
C. Every month.
D. Every day.
(
A. Candy and cola.
B. Fruit and vegetables.
C. Cheese, milk and yogurt.
D. Milk and tea.
(
A. We'd better go to the dentist once a year.
B. Cheese and vegetables are good for our teeth.
C. Get a new toothbrush every three days.
D. We should brush our teeth for two or three minutes each time.
Teeth are very important for our health. So we should learn to protect them from a very young age. Here is some advice:
First, we should have healthy eating habits.
Don't eat too much sugar or drink too much cola, or our teeth will go bad easily.
Have more cheese, milk and yogurt to make our teeth strong.
Eating more vegetables and fruit is good for our teeth.
Second, we should keep these numbers in mind.
One day—Brush our teeth at least twice a day: in the morning and before bedtime.
2~3 Minutes—Brush our teeth for at least two to three minutes every time.
3 Months—Get a new toothbrush(牙刷) every three months.
6 Months—Go to the dentist every six months.
根据材料内容，选择最佳答案。
(
C
)1. How many toothbrushes do we need in a year?A. Two.
B. Three.
C. Four.
D. Five
(
C
)2. If we want to protect our teeth, we must protect them .A. at the age of 12
B. at the age of 1
C. at a very young age
D. at an old age
(
A
)3. How often should we go to the dentist?A. Every 6 months.
B. Every year.
C. Every month.
D. Every day.
(
C
)4. What can make our teeth strong?A. Candy and cola.
B. Fruit and vegetables.
C. Cheese, milk and yogurt.
D. Milk and tea.
(
D
)5. What can we learn from the material?A. We'd better go to the dentist once a year.
B. Cheese and vegetables are good for our teeth.
C. Get a new toothbrush every three days.
D. We should brush our teeth for two or three minutes each time.
答案
1.C 2.C 3.A 4.C 5.D
解析
【分析】本题为英语阅读理解细节选择题，解题思路是先通读全文掌握保护牙齿的相关建议，再针对每个小题的问题，回到原文定位对应信息，逐一比对选项得出答案。具体来看：第1题需计算一年换牙刷数量，根据原文换牙刷的周期计算；第2题找保护牙齿的起始年龄，定位原文开头；第3题找看牙医的频率，定位对应时间提示；第4题找让牙齿坚固的食物，定位相关饮食建议；第5题需逐一核对选项与原文内容，排除错误选项。
【解析】1. 根据原文“3 Months—Get a new toothbrush every three months”，一年有12个月，12÷3=4，故需4支牙刷，选C；2. 根据原文“So we should learn to protect them from a very young age”，保护牙齿要从很小的时候开始，选C；3. 根据原文“6 Months—Go to the dentist every six months”，看牙医的频率是每6个月一次，选A；4. 根据原文“Have more cheese, milk and yogurt to make our teeth strong”，奶酪、牛奶和酸奶能让牙齿坚固，选C；5. 逐一核对选项：A项原文是每6个月看牙医而非一年；B项蔬菜对牙齿好但让牙齿坚固的是奶酪等；C项是每3个月换牙刷而非3天；D项原文提到“Brush our teeth for at least two to three minutes every time”，符合，选D。
【答案】1.C 2.C 3.A 4.C 5.D
【知识点】英语阅读理解、细节理解
【点评】本题是基于说明文的细节理解题，侧重考查学生快速定位原文信息的能力，题目难度较低，只要仔细阅读材料、找准对应内容即可正确作答。
【难度系数】0.8
【解析】1. 根据原文“3 Months—Get a new toothbrush every three months”，一年有12个月，12÷3=4，故需4支牙刷，选C；2. 根据原文“So we should learn to protect them from a very young age”，保护牙齿要从很小的时候开始，选C；3. 根据原文“6 Months—Go to the dentist every six months”，看牙医的频率是每6个月一次，选A；4. 根据原文“Have more cheese, milk and yogurt to make our teeth strong”，奶酪、牛奶和酸奶能让牙齿坚固，选C；5. 逐一核对选项：A项原文是每6个月看牙医而非一年；B项蔬菜对牙齿好但让牙齿坚固的是奶酪等；C项是每3个月换牙刷而非3天；D项原文提到“Brush our teeth for at least two to three minutes every time”，符合，选D。
【答案】1.C 2.C 3.A 4.C 5.D
【知识点】英语阅读理解、细节理解
【点评】本题是基于说明文的细节理解题，侧重考查学生快速定位原文信息的能力，题目难度较低，只要仔细阅读材料、找准对应内容即可正确作答。
【难度系数】0.8
