阅读理解：

阅读下面短文，根据短文内容，从第1～4小题所给的(A)、(B)、(C)、(D)四个选项中，选择最佳选项。

　　Watching some children trying to catch butterflies one August afternoon, I was reminded of an incident in my own childhood. When I was a boy of twelve in South Carolina, something happened to me that made me never put any wild creature (living thing) in a cage(笼子).

　　We lived on the edge of a forest, and every evening at dusk the mockingbirds would come and rest in the trees and sing. There isn't a musical instrument made by man that can produce a more beautiful sound than the song of the mockingbird.

　　I decided that I would catch a young bird and keep it in a cage and in that way, I would have my own private musician.

　　I finally succeeded in catching one and put it in a cage. At first, being scared, the bird fluttered(扑腾) about the cage, but finally it settled down in its new home. I felt very pleased with myself and looked forward to some beautiful singing from my little musician.

　　On the second day of the bird's captivity, my new pet's mother flew to the cage with food in her mouth. The baby bird ate everything she brought to it. I was pleased to see this. Certainly the mother knew better than I how to feed her baby.

　　The following morning when I went to see how my captive (caged) bird was doing, I discovered it on the floor of the cage, dead. I was terribly surprised! What had happened! I had taken extremely care of my little bird, or so I thought.

　　Arthur Wayne, the famous ornithologist, who happened to be visiting my father at the time, hearing me crying over the death of my bird, explained what had happened. “A mother mockingbird, finding her young in a cage, will sometimes bring it poison berries(毒莓). She thinks it better for her young to die than to live in captivity.”

　　Never since then have I caught any living creature and put it in a cage. All living creatures have a right to live free.

1．Why did the writer catch a mockingbird when he was a boy of twelve?

[　　]

A．He liked living creatures.

B．He enjoyed watching beautiful birds.

C．He needed a pet as a friend.

D．He wanted the bird to sing for him.

2．The mockingbird died because ________.

[　　]

A．the bird suffered from missing its mother

B．the bird's mother gave it the poisonous food

C．the writer didn't know how to feed the bird at first

D．his father's friend didn't tell him the way of bird's life

3．An ornithologist is probably a person who ________.

[　　]

4．From his past experience, the writer probably suggests that ________.

[　　]

A．no one can miss the chance to say sorry

B．all living creatures can make free choices

C．everything can be less worthy than any lives

D．nothing can be more important than freedom

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 the expected height．But getting enough sleep and exercise will meet your need．

It s certain that 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 cm）a year between age 3 and the time when they start adolescence．

Don't be scared if you seem to have grown a lot in a very short time．Everyone has a time to grow fastest during adolescence．The age for starting adolescence is about lo 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 adolescence．

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

A．婴幼儿时期         B．童年时期             C．青春期                D．学生时期

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

A．you should eat a healthy diet                     B．you should have enough sleep

C．you can seek medical help from a doctor      D．you should have enough exercise

3．This passage is mainly about ________．

A．how the genes work in your body             B．how you grow to a certain height

C．when is the time you grow fast                   D．why you look like your parents

4．After reading this passage，we can explain ________．

A．what healthy diet is                                  B．how good it is to be a doctor

C．how much sleep time we need                     D．why genes can't decide everything

5．Which of the following sentences is NOT right according to the passage?

A．You．may be anxious sometimes when you grow too fast．

B．Boys' age for starting adolescence is usually later than that for girls'．

C．The time showing the first changes of adolescence is seldom noticed．

D．Your height most likely has something to do with how high your parents are．