Question

閱讀選擇閱讀下面的短文，從每題所給的A、B、C三個選項中 選出最佳答案。

      Height is just one of the thousands of features your genes decide. In fact,because you have two parents,your genes provide you with a height that usually lands somewhere between the height of each parent. If both your parents are tall,then maybe 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 (潛力) . Getting enough sleep and enough 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 2 inches (5 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 two 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 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 _kso after your body start to show the first changes of puberty.

() 21. The passage is mainly about .

   A. how the genes work in your body

   B. when you grow fast

   C. how you can grow to a certain height

() 22. The Chinese for the underlined word“puberty” is .

   A. 嬰幼兒期   B. 青春期

   C. 童年期

() 23. Which statement is NOT true?

   A. Genes can't decide everything.

   B. Healthy living habits can help you grow to the right height.

   C. Most of the boys start puberty earlier than girls.

() 24. After reading this passage,we know

   A. kids will grow faster during the puberty

   B. why unhealthy diet can keep you from growing

   C. if both your parents are tall,you will be tall,too

() 25. What is not the reason why you are shorter than your classmates now?

   A. My parents are shorter than theirs.

   B. I haven’t got my growth spurt yet.

   C. I get enough sleep and enough exercise every day.

Answer 1

21. B    22. B    23. C    24. A    25. C