Question

Height is just one of the 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 most probably 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 them 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 plenty of sleep and enough exercise will help you grow to the expected height.
It’s natural that you’re wondering how fast you should grow. There’s no perfect or right answer. Generally speaking, kids grow about 6 cm a year between age 3 and the time when they start puberty .
Your doctor will know how your growth has been going over the years. 2 cm here and 3 cm there make a little difference to the height you’re at now. How have you been growing up to this height？What other changes may your body be going through？
Don’t be amazed 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 about 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 after your body starts to show the first changes of puberty.
小题1:If you want to know how tall you should grow, _______.

A．you should have enough exercise

B．you can ask doctors for help

C．you should take some special medicine

D．you can record your growth during puberty

小题2:The Chinese for the word “ puberty ” is _______.

A．童年时期	B．婴幼儿时期
C．习惯养成期	D．生长发育期

小题3:This passage is mainly about ______.

A．how the genes work in your body

B．how your parents’ height influence you

C．how you look like your parents

D．how you grow to a certain height

小题4:After reading this passage, we can explain ______.

A．how good it is to be a doctor

B．how much sleep time we need

C．why genes can’t decide everything

D．what healthy diet is

小题5:Which is NOT mentioned in the passage？

A．Your height most probably depends on how tall your parents are.

B．Girls’ age for starting puberty is usually earlier than that for boys’.

C．The features showing the first changes of puberty between boys and girls are different.

D．You may be amazed sometimes when you grow too fast.

Answer 1

小题1:B
小题2:D
小题3:D
小题4:C
小题5:C

试题分析：短文大意：这篇短文主要讲述了人的身高问题，通过短文我们可以知道，你的身高大部分依赖于你父母的身高，女孩的青春期一般比男孩子早，你可能有时对于自己长得过快感到惊讶。
小题1:细节理解题。根据But if you have questions about how tall you’re going to be, ask your doctor if he or she can help you find them out.描述，可知如果你想知道自己能长多高，可以去请教医生。故选B。
小题2:词义猜测题。联系前文kids grow about 6 cm a year between age 3 and the time描述，可知此处指的是，从三岁到青春期开始之前，故选D。
小题3:主旨大意题。阅读短文可知，这篇短文主要谈到了人如何长高的问题，故选D，你如何长到一定的高度。
小题4:细节理解题。阅读短文可知，这篇短文告诉我们身高与基因相关，但并不是决定因素，故选C，为什么基因不能决定一切。
小题5:细节理解题。阅读短文可知，这篇短文主要讲述了你的身高大部分依赖于你父母的身高，女孩的青春期一般比男孩子早，你可以有时对于自己长得过快感到惊讶。没有关于男女青春期的区别的描述，故选C，男生和女生的青春期的第一变化是不同的。