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五、阅读理解。〔人与社会——科技与生活〕
Many smartwatches today are great for your health. They can check how healthy your heart is and count your steps. Now, a new watch can even check the electrolytes(电解质)in your sweat(汗).
Electrolytes are important in our body, and now smartwatches can help us check them. We get electrolytes from our diet and they help us stay fit. If we don't have enough electrolytes, we might feel tired, weak, or even have heart problems. When we sweat, we lose both water and electrolytes, especially(尤其)during exercise or hot weather. The new smartwatch can check our electrolyte levels(浓度). With its help, we can better understand when our body needs more. By doing this, smartwatches can become a useful tool for staying healthy.
The new smartwatch collects sweat from the skin and checks it all the time. It has some special chips(芯片). They can check electrolyte levels in the user's sweat.
The watch can tell the users if their electrolyte levels are not high enough. This helps stop harm during exercise. It also tells people to drink water or electrolyte drinks in time. This way, they won't feel tired or get sick easily. But there is still one problem with the watch. It is bigger and heavier than other fitness watches. This makes it not comfortable to wear.
In the future, the scientists will try to make the watch smaller. They also hope to make new chips to check more things, like blood sugar. This will make the watch more useful for people with different health needs. And it will make it easier for people to stay healthy and active.
(
A. We get them from sweat.
B. We get them from meals.
C. We get them from blood.
D. We get them from exercise.
(
A. By counting the user's steps.
B. By collecting and checking the sweat.
C. By adding special chips to the body.
D. By checking how healthy the user's heart is.
(
A. ①②/③④/⑤
B. ①/②③/④⑤
C. ①②/③/④⑤
D. ①/②③④/⑤
Many smartwatches today are great for your health. They can check how healthy your heart is and count your steps. Now, a new watch can even check the electrolytes(电解质)in your sweat(汗).
Electrolytes are important in our body, and now smartwatches can help us check them. We get electrolytes from our diet and they help us stay fit. If we don't have enough electrolytes, we might feel tired, weak, or even have heart problems. When we sweat, we lose both water and electrolytes, especially(尤其)during exercise or hot weather. The new smartwatch can check our electrolyte levels(浓度). With its help, we can better understand when our body needs more. By doing this, smartwatches can become a useful tool for staying healthy.
The new smartwatch collects sweat from the skin and checks it all the time. It has some special chips(芯片). They can check electrolyte levels in the user's sweat.
The watch can tell the users if their electrolyte levels are not high enough. This helps stop harm during exercise. It also tells people to drink water or electrolyte drinks in time. This way, they won't feel tired or get sick easily. But there is still one problem with the watch. It is bigger and heavier than other fitness watches. This makes it not comfortable to wear.
In the future, the scientists will try to make the watch smaller. They also hope to make new chips to check more things, like blood sugar. This will make the watch more useful for people with different health needs. And it will make it easier for people to stay healthy and active.
(
B
)1. Where can we get electrolytes from?A. We get them from sweat.
B. We get them from meals.
C. We get them from blood.
D. We get them from exercise.
(
B
)2. How does the new smartwatch check electrolytes?A. By counting the user's steps.
B. By collecting and checking the sweat.
C. By adding special chips to the body.
D. By checking how healthy the user's heart is.
(
D
)3.(创新考法·篇章结构)Which of the following best shows the structure(结构)of the passage?A. ①②/③④/⑤
B. ①/②③/④⑤
C. ①②/③/④⑤
D. ①/②③④/⑤
答案
1~3. BBD
解析
【分析】
这是一篇介绍新型智能健康手表的科普类阅读理解题，解题思路如下：
1. 第1题是细节理解题，先圈出题干关键词"get electrolytes from"，回到原文定位相关语句，找到原文对应表述后和选项做同义匹配即可选出答案。
2. 第2题同样是细节理解题，圈出题干关键词"How does the new smartwatch check electrolytes"，回到原文找到描述手表检测电解质方式的段落，比对选项排除错误项得到正确答案。
3. 第3题是篇章结构题，逐段梳理每段的核心内容，划分出总起、主体介绍、展望未来三个部分，匹配对应的结构选项即可。
【解析】
1. 细节理解题：根据原文第二段第二句"We get electrolytes from our diet and they help us stay fit."，diet意为日常饮食，和选项B的"meals（膳食）"是同义替换，A从汗液获取、C从血液获取、D从运动获取均不符合原文表述，因此选B。
2. 细节理解题：根据原文第三段第一句"The new smartwatch collects sweat from the skin and checks it all the time."，可知这款新智能手表是通过收集并检测汗液来检测电解质的，对应选项B。A计步、C往体内加特殊芯片、D检测心脏健康均不是它检测电解质的方式，排除错误选项后选B。
3. 篇章结构题：逐段梳理段落大意：第1段总起，引出本文介绍的核心事物——可以检测汗液电解质的新型智能手表；第2-4段是主体部分，分别介绍了电解质的作用、手表的工作原理、手表的实用功能和现存的不足；第5段介绍科学家对这款手表未来的改进规划，属于收尾的展望部分。因此文章结构是①/②③④/⑤，对应选项D。
【答案】
1~3. BBD
【知识点】
细节信息查找，阅读篇章结构梳理
【点评】
本题属于贴近生活的科技类阅读，前两道细节题难度较低，准确定位原文即可选出答案，第三道创新考法的篇章结构题，引导学生跳出只找细节的惯性，学会梳理全文逻辑框架，符合新课标对人与社会主题下科普文本的阅读能力考查要求。
【难度系数】
0.7
这是一篇介绍新型智能健康手表的科普类阅读理解题，解题思路如下：
1. 第1题是细节理解题，先圈出题干关键词"get electrolytes from"，回到原文定位相关语句，找到原文对应表述后和选项做同义匹配即可选出答案。
2. 第2题同样是细节理解题，圈出题干关键词"How does the new smartwatch check electrolytes"，回到原文找到描述手表检测电解质方式的段落，比对选项排除错误项得到正确答案。
3. 第3题是篇章结构题，逐段梳理每段的核心内容，划分出总起、主体介绍、展望未来三个部分，匹配对应的结构选项即可。
【解析】
1. 细节理解题：根据原文第二段第二句"We get electrolytes from our diet and they help us stay fit."，diet意为日常饮食，和选项B的"meals（膳食）"是同义替换，A从汗液获取、C从血液获取、D从运动获取均不符合原文表述，因此选B。
2. 细节理解题：根据原文第三段第一句"The new smartwatch collects sweat from the skin and checks it all the time."，可知这款新智能手表是通过收集并检测汗液来检测电解质的，对应选项B。A计步、C往体内加特殊芯片、D检测心脏健康均不是它检测电解质的方式，排除错误选项后选B。
3. 篇章结构题：逐段梳理段落大意：第1段总起，引出本文介绍的核心事物——可以检测汗液电解质的新型智能手表；第2-4段是主体部分，分别介绍了电解质的作用、手表的工作原理、手表的实用功能和现存的不足；第5段介绍科学家对这款手表未来的改进规划，属于收尾的展望部分。因此文章结构是①/②③④/⑤，对应选项D。
【答案】
1~3. BBD
【知识点】
细节信息查找，阅读篇章结构梳理
【点评】
本题属于贴近生活的科技类阅读，前两道细节题难度较低，准确定位原文即可选出答案，第三道创新考法的篇章结构题，引导学生跳出只找细节的惯性，学会梳理全文逻辑框架，符合新课标对人与社会主题下科普文本的阅读能力考查要求。
【难度系数】
0.7
