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. 
【小题1】. The Chinese for the word “puberty” is 　　　　　　　　　.

It was my first day at Grade 6. And the first lesson was 　41　 English. When I was doing nothing, Mr. Gough, our new English teacher, 　42　 into the classroom.

To my surprise, he held up a book, The Collected Works of Edgar Allen Poe, and asked if anyone 　43　 it. I put my hand up, because Poe was my favorite writer. Mr. Gough asked if I really understood 　44　 the author tried to say in his book. My reply made him smile, and he asked me 　45　 an essay on that subject.

After that, English classes became a new interest for me. Mr. Gough thought that students hadto　　46　 a play to understand it. “Don’t just read it,” he said.

As time passed, we developed a real friendship. He encouraged me to be a 　47　 in the future. When I left school, he said to me, “You have a gift for writing, Tony, and one day you’ll come to realize how 　48　 it is. Make use of it if you want your life to be complete.”

　49　 have passed. Now, every time I sit down to write 　50　, I think of Mr. Gough. He was more than just an English teacher, because he also taught me useful lessons in life.

41. A. boring                      B. bored                    C. interesting                 D. interested

42. A. walks                       B. walked                   C. was walking              D. is walking

43. A. reads                        B. read                       C. has read                   D. had read

44. A. if                             B. when                     C. what                         D. how

45. A. wrote                       B. writing                  C. to write                    D. written

46. A. work out                  B. act out                   C. put out                      D. come out

47. A. teacher                     B. actor                      C. waiter                      D. writer 

48. A. useful                       B. beautiful                 C. careful                      D. thankful

49. A. A year                      B. Some year              C. Years                        D. Every year

50. A. anything new            B. something new        C. new anything             D. new something