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六、信息还原。
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
The science of you
You already know that you are an amazing person, but it's not just your wonderful personality. Your body itself is an unusual machine.
Lots of information has been written on the subject of “you”. You might wonder about your body. Most people think that the big picture of how your body systems work together is important to understand. Sometimes the details interest us the most. 1
Why don't haircuts hurt? Snip, snip—the scissors fly around your head. Your hair grows from living cells, but the hair that's cut is not alive. What's the story here?
2 The root produces hair cells in a special tube called follicle(毛囊). When new hair cells are made at the root, they push older hair cells up the follicle.
As older hair cells move towards the surface of your skin, they change. They join together and harden. 3 The strand(股) of hair that comes out of your head does not have living cells in it. That's why a haircut doesn't hurt!
You probably have about 100,000 hairs on your head right now. Hair strands grow all the time, then fall out and start to grow again. They usually do this in different stages. 4
5 You might be wide-eyed at one of these things. If you want to know more about them, keep reading.
A. That's why you don't lose all of your hair at once.
B. Then they die.
C. Let's go on the way to get a haircut.
D. You have too many hairs growing on your head.
E. Each hair on your head grows from a root that is under your skin.
F. In fact, your hair is just part of all those interesting things of your body.
G. So, don't cut your hair too often.
1.
2.
3.
4.
5.
阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。选项中有两项为多余选项。
The science of you
You already know that you are an amazing person, but it's not just your wonderful personality. Your body itself is an unusual machine.
Lots of information has been written on the subject of “you”. You might wonder about your body. Most people think that the big picture of how your body systems work together is important to understand. Sometimes the details interest us the most. 1
Why don't haircuts hurt? Snip, snip—the scissors fly around your head. Your hair grows from living cells, but the hair that's cut is not alive. What's the story here?
2 The root produces hair cells in a special tube called follicle(毛囊). When new hair cells are made at the root, they push older hair cells up the follicle.
As older hair cells move towards the surface of your skin, they change. They join together and harden. 3 The strand(股) of hair that comes out of your head does not have living cells in it. That's why a haircut doesn't hurt!
You probably have about 100,000 hairs on your head right now. Hair strands grow all the time, then fall out and start to grow again. They usually do this in different stages. 4
5 You might be wide-eyed at one of these things. If you want to know more about them, keep reading.
A. That's why you don't lose all of your hair at once.
B. Then they die.
C. Let's go on the way to get a haircut.
D. You have too many hairs growing on your head.
E. Each hair on your head grows from a root that is under your skin.
F. In fact, your hair is just part of all those interesting things of your body.
G. So, don't cut your hair too often.
1.
C
2.
E
3.
B
4.
A
5.
F
答案
1. C 2. E 3. B 4. A 5. F
解析
【分析】首先通读全文，明确主题是介绍人体头发的相关科学知识，本题为七选五信息还原题，需结合上下文的逻辑关系、话题一致性来选择合适选项。第1空前提到“有时候细节最让我们感兴趣”，后文开始讲解剪头发不疼的细节，需引出相关内容；第2空后文提到毛囊、发根，需说明头发的生长源头；第3空前文讲老细胞变化，后文说明头发无活细胞，需衔接细胞变化的结果；第4空前文提到头发生长脱落分阶段，需解释阶段带来的结果；第5空后文提到“这些事”，需引出相关指代内容。
【解析】1. 前文强调细节吸引人，后文讲剪头发的细节，C选项“Let's go on the way to get a haircut.”起到承上启下的作用，引出头发细节的话题，符合逻辑，故选C。
2. 后文提到“root（根）”“follicle（毛囊）”，说明头发来自皮肤下的根，E选项“Each hair on your head grows from a root that is under your skin.”与后文话题衔接紧密，故选E。
3. 前文说老细胞移动后变硬，后文指出头发无活细胞，B选项“Then they die.”承接前文细胞变化，解释头发无活细胞的原因，符合逻辑，故选B。
4. 前文提到头发生长脱落分不同阶段，A选项“That's why you don't lose all of your hair at once.”解释了阶段特点带来的结果，衔接自然，故选A。
5. 后文提到“these things（这些事）”，F选项“In fact, your hair is just part of all those interesting things of your body.”引出后文指代的内容，符合语境，故选F。
【答案】1.C 2.E 3.B 4.A 5.F
【知识点】信息还原（七选五）、语篇逻辑衔接
【点评】本题围绕人体头发的科学知识展开，重点考查考生对上下文逻辑关系和话题连贯性的把握，需结合语境逐一分析选项，难度适中。
【难度系数】0.6
【解析】1. 前文强调细节吸引人，后文讲剪头发的细节，C选项“Let's go on the way to get a haircut.”起到承上启下的作用，引出头发细节的话题，符合逻辑，故选C。
2. 后文提到“root（根）”“follicle（毛囊）”，说明头发来自皮肤下的根，E选项“Each hair on your head grows from a root that is under your skin.”与后文话题衔接紧密，故选E。
3. 前文说老细胞移动后变硬，后文指出头发无活细胞，B选项“Then they die.”承接前文细胞变化，解释头发无活细胞的原因，符合逻辑，故选B。
4. 前文提到头发生长脱落分不同阶段，A选项“That's why you don't lose all of your hair at once.”解释了阶段特点带来的结果，衔接自然，故选A。
5. 后文提到“these things（这些事）”，F选项“In fact, your hair is just part of all those interesting things of your body.”引出后文指代的内容，符合语境，故选F。
【答案】1.C 2.E 3.B 4.A 5.F
【知识点】信息还原（七选五）、语篇逻辑衔接
【点评】本题围绕人体头发的科学知识展开，重点考查考生对上下文逻辑关系和话题连贯性的把握，需结合语境逐一分析选项，难度适中。
【难度系数】0.6
