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C
Like most people, you've probably never given your blood glucose, also called blood sugar, a second thought, unless you have diabetes(糖尿病). Diabetes is a disease that appears when your blood glucose is too high. But researchers now know that whether or not you have diabetes, eating too much can make your blood glucose go up and down. Also, it can increase the danger of heart disease. It may even be bad for your memory.
This realization has greatly changed the way we understand food and health. Luckily, none of these things happen overnight, and even small changes in the food you eat every day can start you on a healthier path.
When you are hungry, do you reach for a chocolate cake or a box of biscuits? These "fast-acting" foods are handy and they take no time at all to dissolve(溶化) in your stomach. Then they race into your blood, running through your body with blood glucose. They can provide energy quickly but the effect doesn't last long, leaving you feeling hungry again. As a result, your blood glucose will run out of control.
It's no wonder most of us have less energy than we'd like and feel tired too often. It's also no wonder that most of us weigh more than we want to. Yes, eating too much and exercising
too little are main reasons, and ever changing blood glucose will send you shopping for bigger jeans.
For most of us, even when our blood glucose goes up and down after a large meal, our body can bring it back to normal(常态) in a few hours. Only people with untreated diabetes have blood glucose levels that stay quite high most of the time.
For a long time, doctors thought that only these people needed to take care of their blood glucose levels. Now, we know that even in healthy people, high levels after meals can damage(损坏) the body, even if it never causes diabetes.
7. After eating too much, our blood glucose will .
A. keep unchanged
B. stay on high levels
C. go up and down
D. come back to normal
8. What are fast-acting foods?
A. They are easy to get and can provide energy quickly.
B. They make your blood glucose stay in control.
C. They are unhealthy and we can't eat them at all.
D. They can make you feel hungry less often.
9. What can you learn from the passage?
A. People without diabetes needn't care about the food they take in.
B. People should make great changes to start a healthier path.
C. People should care about their blood glucose to keep healthy.
D. People weigh more than they want because they exercise too much.
10. What is the writer's main purpose in writing this passage?
A. To show people the possible effects of having fast-acting foods often.
B. To help people realize the importance of keeping blood glucose normal.
C. To introduce the damage caused by diabetes and high blood glucose.
D. To warn people of the danger of having diabetes and heart disease.
Like most people, you've probably never given your blood glucose, also called blood sugar, a second thought, unless you have diabetes(糖尿病). Diabetes is a disease that appears when your blood glucose is too high. But researchers now know that whether or not you have diabetes, eating too much can make your blood glucose go up and down. Also, it can increase the danger of heart disease. It may even be bad for your memory.
This realization has greatly changed the way we understand food and health. Luckily, none of these things happen overnight, and even small changes in the food you eat every day can start you on a healthier path.
When you are hungry, do you reach for a chocolate cake or a box of biscuits? These "fast-acting" foods are handy and they take no time at all to dissolve(溶化) in your stomach. Then they race into your blood, running through your body with blood glucose. They can provide energy quickly but the effect doesn't last long, leaving you feeling hungry again. As a result, your blood glucose will run out of control.
It's no wonder most of us have less energy than we'd like and feel tired too often. It's also no wonder that most of us weigh more than we want to. Yes, eating too much and exercising
too little are main reasons, and ever changing blood glucose will send you shopping for bigger jeans.
For most of us, even when our blood glucose goes up and down after a large meal, our body can bring it back to normal(常态) in a few hours. Only people with untreated diabetes have blood glucose levels that stay quite high most of the time.
For a long time, doctors thought that only these people needed to take care of their blood glucose levels. Now, we know that even in healthy people, high levels after meals can damage(损坏) the body, even if it never causes diabetes.
7. After eating too much, our blood glucose will .
A. keep unchanged
B. stay on high levels
C. go up and down
D. come back to normal
8. What are fast-acting foods?
A. They are easy to get and can provide energy quickly.
B. They make your blood glucose stay in control.
C. They are unhealthy and we can't eat them at all.
D. They can make you feel hungry less often.
9. What can you learn from the passage?
A. People without diabetes needn't care about the food they take in.
B. People should make great changes to start a healthier path.
C. People should care about their blood glucose to keep healthy.
D. People weigh more than they want because they exercise too much.
10. What is the writer's main purpose in writing this passage?
A. To show people the possible effects of having fast-acting foods often.
B. To help people realize the importance of keeping blood glucose normal.
C. To introduce the damage caused by diabetes and high blood glucose.
D. To warn people of the danger of having diabetes and heart disease.
答案
7.C 8.A 9.C 10.B
C
【语篇解读】本文是一篇关于健康的说明文，为了保持正常的血糖水平，作者建议每天吃合适的食物，进行适当的锻炼。
7. C 解析：细节理解题。根据“eating too much can make your blood glucose go up and down”可知，吃太多会导致血糖上下波动。故选C。
8. A 解析：细节理解题。根据“These ‘fast-acting’ foods are handy ... They can provide energy quickly but the effect doesn't last long”可知，这些“速效”食物很方便，它们可以快速提供能量，但效果不会持续很长时间。故选A。
9. C 解析：推理判断题。根据“Now, we know that even in healthy people, high levels after meals can damage the body, even if it never causes diabetes.”可知，即使在健康人群中，餐后高血糖也会损害身体，即使它不会导致糖尿病，因此即使是健康的人，也需要关注血糖水平以保持健康。故选C。
10. B 解析：主旨大意题。通读全文可知，本文主要介绍了为了保持正常的血糖水平，应注意的事项，因此作者写这篇文章的目的是帮助人们认识到保持血糖正常的重要性。故选B。
C
【语篇解读】本文是一篇关于健康的说明文，为了保持正常的血糖水平，作者建议每天吃合适的食物，进行适当的锻炼。
7. C 解析：细节理解题。根据“eating too much can make your blood glucose go up and down”可知，吃太多会导致血糖上下波动。故选C。
8. A 解析：细节理解题。根据“These ‘fast-acting’ foods are handy ... They can provide energy quickly but the effect doesn't last long”可知，这些“速效”食物很方便，它们可以快速提供能量，但效果不会持续很长时间。故选A。
9. C 解析：推理判断题。根据“Now, we know that even in healthy people, high levels after meals can damage the body, even if it never causes diabetes.”可知，即使在健康人群中，餐后高血糖也会损害身体，即使它不会导致糖尿病，因此即使是健康的人，也需要关注血糖水平以保持健康。故选C。
10. B 解析：主旨大意题。通读全文可知，本文主要介绍了为了保持正常的血糖水平，应注意的事项，因此作者写这篇文章的目的是帮助人们认识到保持血糖正常的重要性。故选B。
解析
【分析】
本题为健康主题的阅读理解题，包含细节理解、推理判断、主旨大意三类题型。解题思路为：1. 针对细节题（7、8题），需精准定位原文对应语句，匹配选项内容；2. 针对推理判断题（9题），需结合原文信息排除错误选项，合理推断；3. 针对主旨大意题（10题），需通读全文，梳理核心内容，明确作者写作目的。
【解析】
7. 细节理解题：根据原文第一段“eating too much can make your blood glucose go up and down”，可知吃太多会导致血糖上下波动，对应选项C。
8. 细节理解题：根据原文第三段“These 'fast-acting' foods are handy ... They can provide energy quickly”，可知速效食物方便且能快速提供能量，对应选项A。
9. 推理判断题：原文最后一段指出“even in healthy people, high levels after meals can damage the body”，说明健康人群也需关注血糖以保持健康，故C正确；A项与原文矛盾（健康人也需注意），B项原文是“small changes”而非“great changes”，D项原文是“exercise too little”而非“too much”，均排除。
10. 主旨大意题：通读全文，作者围绕血糖的重要性展开，强调即使健康人也需关注血糖，核心是帮助人们认识保持血糖正常的重要性，对应选项B。
【答案】
7.C 8.A 9.C 10.B
【知识点】
阅读理解细节理解、阅读理解推理判断、阅读理解主旨大意
【点评】
本文为健康类说明文，题目设置贴合初中英语阅读考查重点，涵盖细节定位、逻辑推理、主旨提炼，需学生具备精准找原文信息、合理推断的能力，整体难度适中。
【难度系数】
0.6
本题为健康主题的阅读理解题，包含细节理解、推理判断、主旨大意三类题型。解题思路为：1. 针对细节题（7、8题），需精准定位原文对应语句，匹配选项内容；2. 针对推理判断题（9题），需结合原文信息排除错误选项，合理推断；3. 针对主旨大意题（10题），需通读全文，梳理核心内容，明确作者写作目的。
【解析】
7. 细节理解题：根据原文第一段“eating too much can make your blood glucose go up and down”，可知吃太多会导致血糖上下波动，对应选项C。
8. 细节理解题：根据原文第三段“These 'fast-acting' foods are handy ... They can provide energy quickly”，可知速效食物方便且能快速提供能量，对应选项A。
9. 推理判断题：原文最后一段指出“even in healthy people, high levels after meals can damage the body”，说明健康人群也需关注血糖以保持健康，故C正确；A项与原文矛盾（健康人也需注意），B项原文是“small changes”而非“great changes”，D项原文是“exercise too little”而非“too much”，均排除。
10. 主旨大意题：通读全文，作者围绕血糖的重要性展开，强调即使健康人也需关注血糖，核心是帮助人们认识保持血糖正常的重要性，对应选项B。
【答案】
7.C 8.A 9.C 10.B
【知识点】
阅读理解细节理解、阅读理解推理判断、阅读理解主旨大意
【点评】
本文为健康类说明文，题目设置贴合初中英语阅读考查重点，涵盖细节定位、逻辑推理、主旨提炼，需学生具备精准找原文信息、合理推断的能力，整体难度适中。
【难度系数】
0.6
