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 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 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 plenty of sleep and enough exercise will help you grow to the expected height.

No doubt you're wondering how fast you should grow. It depends. There's no perfect or right answer. Generally speaking, kids grow about 2 inches (6 centimeters) a year between age 3 and the time when they start puberty (when your body starts changing and becoming more grown up).

Your doctor will know how your growth has been going over the years. Two centimeters here and 2 inches there are not nearly as important as the height you're at now, how you've been growing up to this point, and what other changes your body may be going through.

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 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 or so after your body starts to show the first changes of puberty.

1.The Chinese for the word “puberty” is _____.

A. 童年时期 B. 生长发育期 C. 习惯养成期 D. 婴幼儿时期

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

A. you should have enough exercise B. You can record your growth during puberty

C. you should save the environment D. you can ask doctors for help

3.This passage is mainly about ______.

A. how the genes work in your body B. when is the time you grow fast

C. why you look like your parents D. how you grow to a certain height

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

5.Which is NOT mentioned in the passage?

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

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

C. The time showing the first changes of puberty is never noticed.

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

A good way to pass an exam is to work hard every day in a year. You may fail in an exam if you are lazy for most of the year and then work hard only a few days before the exam. If you want to be good at English, you have to read stories in English and speak English as much as possible. A few days before the exam you should go to bed early. Do not stay up late for the exam. Before you start the exam, read carefully over the question paper, try to understand the exact meaning of each question. When you have at last finished your exam, read over your answers. Correct the mistakes if there are any and be sure that you have not missed anything out.

1.If students want to do well in an exam, they have to work hard __

A. for most of the month B. every day of the year

C. for only a few days D. late at night

2.If students want to learn English well, they

A. only need to learn grammar B. must often practice English

C. have to go to England D. should go to bed early

3.It' s important _ _ a few days before the exam.

A. play too much B. have a good rest

C. read the question papers D. have a good drink

4.According to the passage, when students have finished the exam, they should __

A. stand up and leave the classroom at once

B. check your answers with the other students in class

C. make sure they haven’t missed anything out

D. ask the teacher of the right answers in class.

5.The best title for this passage is .

A. An Important Exam B. How to Pass an Exam

C. The Difference of English D. Get Ready for an Exam

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网