We're trees. We've lived on the earth with you for thousands of years. Each day we give out oxygen and make air fresh. We can cool the air you don't feel hot all the time; We help to the soilfrom bein 题目和参考答案——青夏教育精英家教网—

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We're trees. We've lived on the earth with you for thousands of years. Each day we give out oxygen and make air fresh. We can cool the air _____ you don't feel hot all the time; We help to ___ the soil（土壤）from being washed ____ . We give all kinds of fruits and wood to you. We are your friends. But you've never been interested in us, or pay any attention to us, so you hardly know _____about us.

We are now in great danger because of you humans. You're destroying us _____ a terrible speed. You're burning and cutting down millions of us each year. Every day one tree is ___but 30 trees are cut down. What would you do ____ all of us died? Without us, you wouldn't get the ingredients for some of your important medicine, you wouldn't have enough material for buildings, furniture, ____ products. Therefore, air pollution and noise pollution would become more and more______·

The best thing for you to do now is to stop destroying us and start protecting the environment, because we are the best fighters ______pollution!

1.A. because of B. as soon as C. even though D. so that

2.A. support B. operate C. prevent D. produce

3.A. away B. below C. around D. back

4.A. anything B. something C. nothing D. everything

5.A. in B. for C. at D. on

6.A. built B. lost C. dropped D. planted

7.A. before B. unless C. if D. whether

8.A. flower B. paper C. water D. glass

9.A. unfair B. serious C. seriously D. kindly

10.A. through B. across C. against D. except

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The bag is _______ all kinds of snacks.

A. full with B. fill with C. filled with D. filled of

Tim Berners?Lee is not the most famous inventor in the world. However, his invention has changed our lives.

He was born in London, England in 1955. When he was a small boy, Tim was interested in playing with electrical things. He studied science at Oxford University. He made his first computer from an old television at the age of 21.

Tim started working on early computers. At that time, they were much bigger than now. He worked in England then Switzerland. Tim was really interested in two things, computers and how the brain works. How could the brain connect so many facts so quickly? He had to work with people all over the world. They shared information about computers. It was hard to manage all the information. He answered the same questions again and again. It took a lot of time. It was even difficult for computers in the same office in Switzerland to share information. Tim also forgot things easily. Could a computer work like a brain? Could it “talk” to other computers?

There was an Internet already but it was difficult to use. In 1989, Tim Berners?Lee invented the World Wide Web (WWW) all by himself. This had a special language that helped computers talk to each other on the Internet. When people wanted to share information with others, they used the World Wide Web. The Internet grew quickly after that.

Tim Berners?Lee doesn't think he did anything special. He says that all of the ideas about the Internet were already there. All he did was to put them together. He says that many other people worked together to make the Internet what it is today.

Most inventors want to become rich. But Tim gave away the World Wide Web for nothing. He now works in America. He helps people share technology and wants the Internet to be free for everyone to use. Maybe he is the most important but least famous inventor in the world today!

1.What was Tim Berners?Lee interested in？

A. Looking for jobs in different cities.

B. Talking to people around the world.

C. Studying how to connect computers.

2.The underlined word “It” in Paragraph 3 refers to “________”．

A. Working on early computers

B. Connecting different facts together

C. Repeating the answers to the same questions

3.Why is Tim Berners?Lee one of the most important men in the world?

A. He made information sharing on the Internet possible.

B. He made the first computer when he was 21 years old.

C. He helped people understand better how the brain works.

4.In what order did the following events take place?

a．Tim worked in England.

b．Tim worked in Switzerland.

c．Tim made his first computer.

d．Tim invented the World Wide Web.

e．Tim studied science at Oxford University.

A. c－e－d－a－b B. e－b－a－c－d

C. e－c－a－b－d

5.What does the writer think of Tim Berners?Lee?

A. He is not famous because he is not rich.

B. He has changed our lives and he is great.

C. He did nothing special but make people a good life.

---When the car ?

---I am not sure.

A. did,invent B. was,invented C. does,invent D. in,invented

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 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. 生长发育期 C. 习惯养成期 D. 婴幼儿时期

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

A. you should have enough exercise B. You can record your growth during puberty

C. you should save the environment D. you can ask doctors for help

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.

— Have you found the information about the famous people ________ you can use for the report?

—Not yet. I’ll search some on the Internet.

A. who B. what

C. whom D. which

---I wonder if your sister will go to the party.

----If your sister _____ , so ______.

A. does;does she B. will;will mine C. does;will mine D. doesn’t ;will I

（题文）—________do you have dinner?

—At seven o'clock.

A. What time B. How old

C. How much D. Where

--- Morn, do you like my drawing?

--- ________! I have never seen a better one.

A. How terrible B. What wonderful C. How beautiful D. What delicious

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