Question

    After graduating from middle school, many students grow very fast, especially boys. And the teachers have to look up at their faces to show love for them. Why do they grow so fast?

Height is just one of the thousands of features your genes(基因) decide. In fact, because you have two parents, your genes provide you a height that usually lands somewhere between the height of each parent. If both your parents are tall, then perhaps you will be tall, too. But if you have questions about how tall you’re going to be, ask your doctor if he or she can help you find it out.

But genes don’t decide everything. For example, eating an unhealthy diet can keep you from growing to your full potential(潜力). Getting enough sleep and exercise will help you grow to the right height.

No doubt you’re wondering how fast you should grow. It depends. There’s no perfect or right answer. Kids grow about 5 cm a year between age 3 and the time when they start puberty（when your body starts changing and becoming more grown up. ）

Don’t be scared if you seem to have grown a lot in a very short time. Everyone has a growth spurt(高峰) during puberty. The age for starting puberty is about 10 for girls and 11 for boys. But it can be earlier or later between 7 and 13 for girls and 9 and 15 for boys.

You’ll usually begin to notice that you’re growing faster about a year or so after your body starts to show the first changes of puberty.

1.What does the underlined word “puberty” mean in Chinese?

A.童年时代 B.婴幼儿时期 C.青春期

2.If you want to know how fast and how tall you should grow, _______________.

A.you should have enough exercise

B.you should ask doctors for help

C.you can record your growth during puberty

3.Girls’ growth spurt can be _______________.

A.14 B.13 C.15

4.Which is true according to the passage？

A.Girls’ age for starting puberty is usually later than that of boys’.

B.You height never depends on genes.

C.Everyone has a growth spurt during puberty.

5.The passage is mainly about _______________.

A.Height. B.Weight. C.Genes.

Answer

1.C

2.B

3.B

4.C

5.A

【解析】

文章大意：本文是一篇科普知识类阅读，介绍了关于身高的一些问题和怎样能长高。

1.词句猜测题。根据文章第四段最后一行“when your body starts changing and becoming more grown up”“当你的身体开始发生变化并开始成长”可推知puberty是青春期，故选C。

2.细节理解题。根据文章第二段的倒数第一、二行“but if you have questions about how tall you're going to be,ask your doctor if he or she can help you find it out”“但如果你对自己的身高有疑问，问问你的医生是否能帮你找到答案”可知，你应该向医生寻求帮助，故选B。

3.细节理解题。根据文章倒数第二段的第一、二、三行“Everyone has ……for boys”“每个人在青春期都有一个生长期。女孩开始青春期的年龄约为10岁，男孩约为11岁。但对于女孩来说，7到13岁之间，对于男孩来说，9到15岁之间可能更早或更晚”可知，女孩的成长峰值是13岁，故选B。

4.细节理解题。根据文章倒数第二段的第二行“The age for starting puberty is about 10 for girls and 11 for boys”“女孩开始青春期的年龄约为10岁，男孩约为11岁”可知，A说法是错误的；根据文章第二段第一行“Height is just one of the thousands of features your genes（基因）decide”“身高只是你基因决定的成千上万个因素之一”可知，B说法是错误的；根据文章第五段第一、二行“Everyone has a growth spurt（高峰）during puberty”“每个人在青春期都有一个快速的生长期”可知，C说法是正确的，故选C。

5.主旨大意题。通读全文可知，文章主要讲的是关于身高的一些问题和怎样能长高，Height高度；Weight重量；Genes基因，故选A。