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(潛力). 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. 童年時期          B.嬰幼兒時期        C.習(xí)慣養(yǎng)成期        D. 生長發(fā)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.

補(bǔ)全對話（5分）

A: What are you going to do this weekend?

B:   1. 

A:I hear there will be a football match this Sunday.Bob and I are going to watch it.   2. 

B:Of course. Football is my favorite. But I don’t have the ticket for the match.

A: You are lucky. I have some free tickets.     3.   

B: Great!     4.  

A: Let’s meet at the bus stop at half past three.

B: I think there must be many people there.   5.   

A: OK. See you at three o’clock.

B: See you.

任務(wù)型閱讀（5分）

.根據(jù)下列句子及所給漢語注釋，寫出空缺處單詞的正確形式，每空一詞。

1. Cindy told me it was her            (第二)time to visit Shanghai during the Expo 2010 Shanghai China.

2. Thanks to the policy, which the government is sending home-electric machines to farmers, they can pay much            (少的) money.

3. What was the most important            (發(fā)明) in the 20^th century.

4.People are pretty             （放松的）about time in Columbia.

5.We’re             (籌集)money to help the poor boy.

在下列各句的每個空格內(nèi)填上一個適當(dāng)?shù)耐暾�的單詞，該詞的首字母已給。

1. T he weather in South China is d           from that in North China.

2.My brother finished his homework all by h           .

3.I want to have the bike very much. But I can’t a           it.

4. The man has a serious i            , so he can’t go to work.

5. I don’t know the way to the library. Can I f            you?

書面表達(dá)（15分）

假設(shè)你已經(jīng)正式成為一名2010年上海世博會的志愿者。請為一篇80詞左右的短文談?wù)勀愕拇蛩�，比如可以交許多朋友，努力提高口語，介紹中國歷史和美食，學(xué)習(xí)國外文化知識等等。不要逐條翻譯，可適當(dāng)發(fā)揮。

參考詞匯：2010 Shanghai World Expo，volunteer, make friends, introduce, cultural knowledge…

Students should have _______ own ideas when they meet problems.

            A. our            B. their           C. your

I don’t know which country will hold the 2020 Olympics, and she has no idea, _______.

A.  too            B. either           C. also

-______ did he stay up late last night?

          - Because he studied for the English exam.

           A. When            B. Why            C. Where

Last weekend, Linda had a very exciting _____. She went to have fun with her friends in Disneyland.

A. news            B. information       C. experience