六、跨学科生物 阅读与回答问题(本题共5小题;每小题2分,满分10分)
请认真阅读下面短文,并根据短文内容回答问题。
The Secret of Growth
The tiny egg cell(卵细胞) you grew from was smaller than the head of a needle. By the time you are fully grown, your body will be up to 20,000 times larger. That's a lot of growing!
The secret to the growth lies in your cells. In all animals—humans included—growth happens when cells get bigger, break apart to create new cells, and connect together. Even when you stop getting taller, this cellular activity never truly ends. Your body continues to renew itself throughout your life as worn-out cells are replaced by new ones. The average lifespan(寿命) of human cells is about 7 to 10 years, meaning you're not the same person you were a few years ago!
Different parts of your body grow at different speeds. By age 10, your head is already close to its adult size, while the rest of your body may need another 10 years to catch up. Inside your body, organs like your heart, lungs, and liver follow their own growth timetable. Your height comes mainly from how your bones develop, especially your spine(脊柱) and the long bones in your arms and legs.
Growth doesn't happen at a steady(稳定的) pace. It speeds up quickly during two main periods of fast growth: the first is when you are a baby, and the second is when you are a teenager. During your first year of life, you grew about 25 centimetres! After that period, growth slowed to about 3～8 centimetres each year. But during your teenage years, you might suddenly grow 10 centimetres or more in a single year.
Your adult height is mostly set by the genes you get from your parents. To reach this natural height, your body needs good building materials: healthy food, enough sleep, exercise, and sunshine for strong bones.
66. Where does the secret of growth lie?
67. What is the average lifespan of human cells?
68. Where does your height mainly come from?
69. When are the main periods of fast growth?
70. What can you do to make yourself grow better?（请自拟一句话作答）
请认真阅读下面短文,并根据短文内容回答问题。
The Secret of Growth
The tiny egg cell(卵细胞) you grew from was smaller than the head of a needle. By the time you are fully grown, your body will be up to 20,000 times larger. That's a lot of growing!
The secret to the growth lies in your cells. In all animals—humans included—growth happens when cells get bigger, break apart to create new cells, and connect together. Even when you stop getting taller, this cellular activity never truly ends. Your body continues to renew itself throughout your life as worn-out cells are replaced by new ones. The average lifespan(寿命) of human cells is about 7 to 10 years, meaning you're not the same person you were a few years ago!
Different parts of your body grow at different speeds. By age 10, your head is already close to its adult size, while the rest of your body may need another 10 years to catch up. Inside your body, organs like your heart, lungs, and liver follow their own growth timetable. Your height comes mainly from how your bones develop, especially your spine(脊柱) and the long bones in your arms and legs.
Growth doesn't happen at a steady(稳定的) pace. It speeds up quickly during two main periods of fast growth: the first is when you are a baby, and the second is when you are a teenager. During your first year of life, you grew about 25 centimetres! After that period, growth slowed to about 3～8 centimetres each year. But during your teenage years, you might suddenly grow 10 centimetres or more in a single year.
Your adult height is mostly set by the genes you get from your parents. To reach this natural height, your body needs good building materials: healthy food, enough sleep, exercise, and sunshine for strong bones.
66. Where does the secret of growth lie?
67. What is the average lifespan of human cells?
68. Where does your height mainly come from?
69. When are the main periods of fast growth?
70. What can you do to make yourself grow better?（请自拟一句话作答）
答案：66. It lies in our cells.
67. The average lifespan of human cells is about 7 to 10 years.
68. It mainly comes from how our bones develop, especially our spine and the long bones in our arms and legs.
69. The two main periods of fast growth are when we are a baby and when we are a teenager.
70. I will eat healthily, get enough sleep, do exercise and get proper sunshine to help myself grow better. (答案不唯一，表述合理即可)
67. The average lifespan of human cells is about 7 to 10 years.
68. It mainly comes from how our bones develop, especially our spine and the long bones in our arms and legs.
69. The two main periods of fast growth are when we are a baby and when we are a teenager.
70. I will eat healthily, get enough sleep, do exercise and get proper sunshine to help myself grow better. (答案不唯一，表述合理即可)
解析：
【分析】本题为跨学科英语阅读理解题，解题思路是先明确每个问题的核心，再带着问题回到短文中定位对应关键语句，提取匹配的信息作答；第70题为开放性题目，需结合短文给出的建议组织合理语句即可。
【解析】
66. 定位短文第二段第一句“The secret to the growth lies in your cells.”，提取信息可知答案为It lies in our cells.
67. 定位短文第二段最后一句“The average lifespan of human cells is about 7 to 10 years.”，直接提取信息作答。
68. 定位短文第三段最后一句“Your height comes mainly from how your bones develop, especially your spine and the long bones in your arms and legs.”，提取信息作答。
69. 定位短文第四段第二句“It speeds up quickly during two main periods of fast growth: the first is when you are a baby, and the second is when you are a teenager.”，整理信息作答。
70. 结合短文最后一段给出的促进生长的建议（健康饮食、充足睡眠、锻炼、晒太阳），组织一句合理的话即可，如I will eat healthily, get enough sleep, do exercise and get proper sunshine to help myself grow better.
【答案】
66. It lies in our cells.
67. The average lifespan of human cells is about 7 to 10 years.
68. It mainly comes from how our bones develop, especially our spine and the long bones in our arms and legs.
69. The two main periods of fast growth are when we are a baby and when we are a teenager.
70. I will eat healthily, get enough sleep, do exercise and get proper sunshine to help myself grow better.
【知识点】英语阅读理解（信息提取）、人体生长发育
【点评】本题是跨学科的英语阅读题，主要考查学生从文本中提取特定信息的能力，第70题兼顾语言表达的开放性，整体难度适中，能帮助学生巩固阅读提取信息的技能，同时关联生物学科的人体生长知识。
【难度系数】0.8
【解析】
66. 定位短文第二段第一句“The secret to the growth lies in your cells.”，提取信息可知答案为It lies in our cells.
67. 定位短文第二段最后一句“The average lifespan of human cells is about 7 to 10 years.”，直接提取信息作答。
68. 定位短文第三段最后一句“Your height comes mainly from how your bones develop, especially your spine and the long bones in your arms and legs.”，提取信息作答。
69. 定位短文第四段第二句“It speeds up quickly during two main periods of fast growth: the first is when you are a baby, and the second is when you are a teenager.”，整理信息作答。
70. 结合短文最后一段给出的促进生长的建议（健康饮食、充足睡眠、锻炼、晒太阳），组织一句合理的话即可，如I will eat healthily, get enough sleep, do exercise and get proper sunshine to help myself grow better.
【答案】
66. It lies in our cells.
67. The average lifespan of human cells is about 7 to 10 years.
68. It mainly comes from how our bones develop, especially our spine and the long bones in our arms and legs.
69. The two main periods of fast growth are when we are a baby and when we are a teenager.
70. I will eat healthily, get enough sleep, do exercise and get proper sunshine to help myself grow better.
【知识点】英语阅读理解（信息提取）、人体生长发育
【点评】本题是跨学科的英语阅读题，主要考查学生从文本中提取特定信息的能力，第70题兼顾语言表达的开放性，整体难度适中，能帮助学生巩固阅读提取信息的技能，同时关联生物学科的人体生长知识。
【难度系数】0.8