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 your full potential(潜力). Getting plenty of sleep and enough exercise will help you grow to the expected height.
No doubt(怀疑) 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
科目：初中英语 来源： 题型：
完形填空
The school party will be held on Sep.30th . Many students like to go to the____①____.But before the party, the school principal has made many rules for it :the students cannot ___②____jeans to the party ；the student cannot ____③___friends from other school ;the students cannot run or ____④____at the party . What will happen if they do ? They will be asked to leave or they will not be let in .
( )1.A. school B. party C. gym D. meeting
( )2.A. put on B. i
n C .wear D .take off
( )3. A. bring B. take C .make D. let
( )4.A. sit B. sing C. dance D. shout
(B)
Sma
ll cars may take the place of big cars in the future. There is space for only two people in such a car .If everyone _____⑤___such a 
car ,there will be less pollution_______⑥______the air .There will also be more space for _______⑦______cars in cities , and the less crowded .The little cars will cost
_____⑧____less. Driving will be _____⑨_____,,too, as these little cars can go only 65 kilometers per(每)hour. If big cars still used along with the small ones ,two sets of roads will be used ____⑩_____the big ,fast cars and the other roads will be needed for the slower , small ones.
( ) 5.A. rides B. drives C. pushes
( ) 6 A. for B. on C. in
( ) 7.A. stopping B. stop C. parking
( ) 8. A. lots of B. many C .much
( ) 9. A. safer B. dangerous C. danger
( ) 10.A. as B. for C . in
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科目：初中英语 来源： 题型：
Our teachers always tell us______more English in and out of class.
A. speak B. spoken C. to speak D. speaking
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科目：初中英语 来源： 题型：
—Oh , sorry. I’ve ________ my exercise book in my home .
— Never mind , ________ it tomorrow .
A. forgotten , bring B. forgotten , take
C. left , take D. left , bring
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科目：初中英语 来源： 题型：
完形填空
先阅读短文，掌握其大意，然后从各小题所给的A,B,C,D四个选项中选出可填入相应空白处的最佳答案。
It was my first day at school and I felt nervous and afraid . I went to all my classes alone . I felt like 1 cared. I listened to all the lessons and patiently waited for the lunch break . Then finally the bell rang and it was time to talk and have 2 .
While waiting 3 , I met a new friend who wore a headscarf. We got along 4 , and I was so happy when she said , “ Sit with us at our table .” She pointed to the one next to the door . I agreed, and took my 5 and was about to walk with her 6 the floor, when suddenly I felt someone 7 me . “ Hey, I saw you on the bus ,” said a tall girl in a long skirt. “ I see you wear a Jewish necklace. You 8 sit with us .”
At that moment I 9 and , to my surprise , I found that it was like the nations of the world : the Spanish only sat with the Spanish , the Americans were only with the 10 , the Russians were always with the Russians , and 11 would the Arabs and the Jews sit together .
It was then that I saw the 12 why so many wars begin . Everyone stayed with other people of 13 background . The lunchroom was like a map of the world . Why was everyone so blind ?
So I 14 this girl, and returned to the first girl. They were all very friendly. That day I 15 _ a bridge between two worlds when I sat with those who were different from me .
( ) 1. A.everyone B. anyone C . no one D . someone
( ) 2. A. fun B. trouble C. supper D. rest
( ) 3. A. on line B. in line C. in classroom D. in rain
( ) 4. A. good B. bad C. well D. badly
( ) 5. A. book B. plate C. picture D. drink
( ) 6. A. to B. along C. around D. across
( ) 7. A. calling B. noticing C. moving D. touching
( ) 8. A. have to B. may C. need D. should
( ) 9. A. looked around B. look up C. look into D. look after
( )10. A. Chinese B American C. Russians D. the Spanish
( )11. A. once B sometimes C. always D. never
( )12. A. reason B. story C. matter D. duty
( )13. A. different B. the opposite C. the same D. closed
( )14. A. refused B. followed C. listened to D. fought against
( )15. A. walked B. went C. built D. broke
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科目：初中英语 来源： 题型：
This book is _______interesting than that one.
A. an B. much C. the most D. more
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Police say you ______ drive after drinking.
A. need B. must C. needn’t D. mustn’t
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科目：初中英语 来源： 题型：
Leaves are nature’s food factories. Plants take water from the ground through their roots. They take a gas called carbon dioxide(CO2) from the air. Plants use sunlight(阳光) to turn water and CO2 into glucose（葡萄糖）. Glucose is a kind of sugar. Plants use glucose as food for energy(f&ft) to grow. The way plants turn water and CO2 into glucose is called photosynthesis （光合作用）. That means "putting together with light. ” A chemical called chlorophyll helps make photosynthesis happen. Chlorophyll is green. It gives plants their green color.
As summer ends and autumn comes, the days get shorter and shorter. This is how the trees "know" to begin getting ready for winter. During winter, there is not enough light or water for photosynthesis. The trees will rest, and live on the food they have stored during the summer. They begin to close their food—making factories. The green chlorophyll disappears from the leaves. Then, we begin to see yellow and orange colors. A few of these colors stay in the leaves all the time. We just can’t see them in the summer, because they are covered up by the green chlorophyll. Red and purple colours we see in leaves are made mostly in the autumn. In some trees, like maples(枫树)，glucose is stored in the leaves after photosynthesis stops. Sunlight and the cool nights of autumn turn this glucose into red. The brown color of trees like oaks(橡树) is made from wastes left in the leaves.
( ) 1. What’s the Chinese meaning of the underlined part?
A．叶绿素 B．氧气 C．胡萝卜素 D．蛋白质
( ) 2. Where is CO2 from? A. Ground. B. Roots. C. Sunlight. D. Air.
( ) 3. The way________is called photosynthesis.
A. plants get CO2 from the air B. plants take water from the ground
C. plants turn water and CO2 into glucose D. plants use glucose as food for energy to grow
( ) 4. Red and purple colors in leaves are made mostly in________.
A. spring B. autumn C. summer D. winter
( )5.________in the leaves changes into red color in autumn.
A. Sunlight B. Water C. Glucose D. Chlorophyll
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