Height is just one of the thousands of features your genes 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.婴幼儿时期        C.习惯养成期        D. 生长发育期

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

   A. you should have enough exercise   B. you can ask doctors for help

   C. you should save the environment   D. You can record your growth during puberty

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.

Mr. Black was working in a factory in a big town. He liked 　1　 very much, and was very good　2　 it. When he was free, he　3　 down to a small river behind the factory and tried 　4　 some fish, but there were very few there, 　5　 the water wasn’t clean. One summer he went to the seaside during his holiday and stayed at a small cheap hotel.
“I have never fished in the 　6　 before.” He thought. “It will be more interesting than fishing in our river.”
　7　 first he caught a lot of fish and was very 　8　 . He gave them to the hotel and they cooked them for guests, and he enjoyed himself very much. After　9　, he did this every day. But 　10　 he got his bill(账单) at the end of the week, he saw it, “For oil（油） to cook fish(7 days), 70 dollars（美元）.”

Basketball is still a young game. It’s over a hundred years old. In the winter of 1891, a certain college was having some trouble with its boy students. The weather was bad and the students had to stay indoors. As they couldn’t play outdoors, they were unhappy, and some even got into fights from time to time.
　　Some of the teachers, at the college asked Dr. Naismith to invent a game so that the students might have something to play with. It was not easy to invent such a game because it had to be played indoors , and the court (球场) was not very large.
　　Dr. Naismith thought for a few days and invented a kind of ball game. It was a fast, wonderful game with much moving and passing of the ball. It was played between two teams. To make a score , the ball had to be thrown into the basket ten feet(英尺) above the floor on the wall . At each end of the court there was such a basket. At first, Dr. Naismith wanted to throw the ball into a box. As he could not find boxes of the right size, he had to use fruit baskets instead. That is how the game got its name.
1. How long is it since basketball was invented?
　　A. 1000 years                    　　　　　　　　　　B. More than 100 years
　　C. 1100 years                      　　　　　　　　　　D. Less than 100 years
2. The students felt unhappy because _______.
　　A. they had much homework to do
　　B. they often got into fights
　　C. they couldn’t play outdoors 
　　D. they had little time to study
3. Who asked Dr. Naismith to invent a game?
　　A. Some students                   　　　　　　　　B. Some teachers
　　C. Some students’ parents          　　　 D. Some of his friends
4. When a student ______ , he makes a score.
　　A. receives the ball.              　　　　　　
　　B. throws the ball to another student
　　C. runs quickly with the ball in his hand  
　　D. throws the ball into the basket
5. Which sentence is right?
　　A. Dr. Naismith had to use fruit to throw the ball.
　　B. It was easy to invent the game.
　　C. The students could go outdoors when the weather was bad.
　　D. The ball had to be thrown into the basket five feet above the floor.

One Sunday morning Mr Green and his child , Bill ,are in a big shop . Mr Green wants to
buy a new blouse for Mrs Green . Bill likes oranges , so his father buys two kilos(公斤)of
oranges for him , too . Bill wants to buy some picture—books and colour pencils , too . There
are many people in the shop . They are men and women , old and young . They all want to buy
something there .
【小题1】Mr Green goes to the shop with ___.