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六、信息还原。
阅读短文，从短文后所给的 A~F 六个选项中选出五个能填入空白处的最佳选项。
Caring for my teeth
1
Your teeth are different in shape and size depending on where they are in your mouth. These differences allow the teeth to do many different jobs. Teeth help us to chew food. They help us to talk, and to pronounce different sounds clearly. Finally, teeth help to give our face its shape.
2
It is easy to get your mouth clean and healthy, and keep it that way. A simple routine can help prevent most dental problems:
Brush your teeth last thing at night and at least one other time during the day.
Clean between the teeth with toothbrushes at least once a day.
Good eating habits.
Regular dental check-ups.
3
Your dentist will be able to tell you which toothbrush is suitable for you. You can buy more specialized(专用的) toothbrushes. For example, people with sensitive teeth can use softer brushes. There are also smaller-headed toothbrushes for people with irregular teeth.
4
Tests have shown that electric toothbrushes are more effective(有效的). Everyone can use an electric toothbrush. They are especially useful for disabled or elderly people.
Electric toothbrushes can also be better for children as they may be more likely to brush regularly because of the fun that the electric toothbrushes bring them.
5
Worn-out toothbrushes cannot clean your teeth properly. It is important to change your toothbrush every two to three months, or sooner if the filaments(细丝) become worn.
A. How often should I change my toothbrush?
B. What kind of toothbrush should I use?
C. Do electric toothbrushes clean better?
D. Why should I often visit my dentist?
E. How do I keep my teeth healthy?
F. Why are my teeth so important?
1.
阅读短文，从短文后所给的 A~F 六个选项中选出五个能填入空白处的最佳选项。
Caring for my teeth
1
Your teeth are different in shape and size depending on where they are in your mouth. These differences allow the teeth to do many different jobs. Teeth help us to chew food. They help us to talk, and to pronounce different sounds clearly. Finally, teeth help to give our face its shape.
2
It is easy to get your mouth clean and healthy, and keep it that way. A simple routine can help prevent most dental problems:
Brush your teeth last thing at night and at least one other time during the day.
Clean between the teeth with toothbrushes at least once a day.
Good eating habits.
Regular dental check-ups.
3
Your dentist will be able to tell you which toothbrush is suitable for you. You can buy more specialized(专用的) toothbrushes. For example, people with sensitive teeth can use softer brushes. There are also smaller-headed toothbrushes for people with irregular teeth.
4
Tests have shown that electric toothbrushes are more effective(有效的). Everyone can use an electric toothbrush. They are especially useful for disabled or elderly people.
Electric toothbrushes can also be better for children as they may be more likely to brush regularly because of the fun that the electric toothbrushes bring them.
5
Worn-out toothbrushes cannot clean your teeth properly. It is important to change your toothbrush every two to three months, or sooner if the filaments(细丝) become worn.
A. How often should I change my toothbrush?
B. What kind of toothbrush should I use?
C. Do electric toothbrushes clean better?
D. Why should I often visit my dentist?
E. How do I keep my teeth healthy?
F. Why are my teeth so important?
1.
F
2. E
3. B
4. C
5. A
答案
1. F 2. E 3. B 4. C 5. A
解析
【分析】
这是典型的小标题类信息还原题，解题思路非常清晰：首先先通读每一段落的全部内容，概括出每一段的核心讨论主题，再把主题和A-F六个选项的设问方向做匹配，排除多余的D选项就能得到正确答案。具体思考路径：先看第1空对应的段落，全段都在讲牙齿的各类作用，自然对应“牙齿为什么重要”的设问；第2空对应的段落罗列了好几条护牙的日常做法，显然是回答“如何保持牙齿健康”的问题；第3空对应的段落介绍了不同人群适配的不同类型牙刷，对应“选什么牙刷”的设问；第4空对应的段落全部围绕电动牙刷的清洁效果展开，对应询问电动牙刷清洁能力的选项；第5空对应的段落明确提到了更换牙刷的时间要求，对应询问换牙刷频率的选项。
【解析】
1. 第一段依次介绍了牙齿可以帮助咀嚼食物、辅助清晰发音、维持面部轮廓的作用，核心是阐述牙齿的重要性，匹配选项F。
2. 第二段罗列了夜间刷牙、日间至少刷一次牙、清洁牙缝、养成良好饮食习惯、定期牙科检查等一系列护牙操作，核心是讲解保持牙齿健康的方法，匹配选项E。
3. 第三段提到牙医会推荐适配的牙刷，还分别介绍了针对敏感牙、牙齿不齐人群的专用牙刷，核心是讲解牙刷的选择标准，匹配选项B。
4. 第四段通过测试结论说明电动牙刷清洁效果更好，还介绍了电动牙刷适配的不同人群，核心是解答电动牙刷清洁能力的疑问，匹配选项C。
5. 第五段说明磨损的牙刷无法正常清洁牙齿，要求每2-3个月更换一次牙刷，核心是讲解更换牙刷的频率，匹配选项A。
多余选项D的主题是“为什么要经常看牙医”，全文没有对应段落讨论该内容，直接排除。
【答案】
1. F 2. E 3. B 4. C 5. A
【知识点】
信息还原阅读，段落主旨匹配，英语阅读逻辑
【点评】
本题属于基础类阅读信息还原题型，没有复杂长难句干扰，只需要学生准确抓取每段的核心讨论对象，就能快速完成匹配，能够有效锻炼学生的段落主旨归纳能力，做题时只要注意区分不同段落的核心讨论主题，就不会出现混淆选项的错误。
【难度系数】
0.8
这是典型的小标题类信息还原题，解题思路非常清晰：首先先通读每一段落的全部内容，概括出每一段的核心讨论主题，再把主题和A-F六个选项的设问方向做匹配，排除多余的D选项就能得到正确答案。具体思考路径：先看第1空对应的段落，全段都在讲牙齿的各类作用，自然对应“牙齿为什么重要”的设问；第2空对应的段落罗列了好几条护牙的日常做法，显然是回答“如何保持牙齿健康”的问题；第3空对应的段落介绍了不同人群适配的不同类型牙刷，对应“选什么牙刷”的设问；第4空对应的段落全部围绕电动牙刷的清洁效果展开，对应询问电动牙刷清洁能力的选项；第5空对应的段落明确提到了更换牙刷的时间要求，对应询问换牙刷频率的选项。
【解析】
1. 第一段依次介绍了牙齿可以帮助咀嚼食物、辅助清晰发音、维持面部轮廓的作用，核心是阐述牙齿的重要性，匹配选项F。
2. 第二段罗列了夜间刷牙、日间至少刷一次牙、清洁牙缝、养成良好饮食习惯、定期牙科检查等一系列护牙操作，核心是讲解保持牙齿健康的方法，匹配选项E。
3. 第三段提到牙医会推荐适配的牙刷，还分别介绍了针对敏感牙、牙齿不齐人群的专用牙刷，核心是讲解牙刷的选择标准，匹配选项B。
4. 第四段通过测试结论说明电动牙刷清洁效果更好，还介绍了电动牙刷适配的不同人群，核心是解答电动牙刷清洁能力的疑问，匹配选项C。
5. 第五段说明磨损的牙刷无法正常清洁牙齿，要求每2-3个月更换一次牙刷，核心是讲解更换牙刷的频率，匹配选项A。
多余选项D的主题是“为什么要经常看牙医”，全文没有对应段落讨论该内容，直接排除。
【答案】
1. F 2. E 3. B 4. C 5. A
【知识点】
信息还原阅读，段落主旨匹配，英语阅读逻辑
【点评】
本题属于基础类阅读信息还原题型，没有复杂长难句干扰，只需要学生准确抓取每段的核心讨论对象，就能快速完成匹配，能够有效锻炼学生的段落主旨归纳能力，做题时只要注意区分不同段落的核心讨论主题，就不会出现混淆选项的错误。
【难度系数】
0.8
