题目内容

You can’t see any object unless light from that object gets into your eyes.Some of the things you see give off light of their own。The sun,the stars,a lighted lamp are the examples that can be seen by their own light.But most of the things you see are not giving off light of their own.They are just reflecting(反射)light that falls on them from the sun or some other luminous bodies.The moon,for example,doesn’t give off any light of its own.It is not 1uminous.You see it because sunlight falls on it and some of the sunlight reflects on the earth.So moonlight is only second—hand sunlight.
When you look at a book,it sends some of the light which fails on it to your eyes,and you see the book.If light could be kept out from where you’re so that there would be no light from the book to reflect.Then you couldn’t see the book even with your eyes wide open.Light travels so fast that the time in which it travels from the book you’re reading to your eyes is as short as if there were no time at time.Light reaches us from the moon,which is about 380,000 kilometres away,in only a little more than a second.
【小题1】You can see the book because________.
A.your eyes are close to itB.it reflects some of the light
C.it has light of its ownD.it is big enough to be seen
【小题2】The Chinese meaning of the world“luminous”is close to_______.
A.闪光的B.看不见的C.发光的D.明亮的
【小题3】________has light of its own.
A.The moonB.The earthC.The sunD.The satellite of Dong Fong Hong
【小题4】Light travels about_________kilometers per second.
A.300,000B.100,000C.400,000D.190,000
【小题5】Which of the following is TRUE?
A.All the things you can see give off light.
B.Light from the book is much faster than that from the moon.
C.The moment you open your eyes,the light from the book travels to your eyes.
D.Light travels so fast that there is no time for you to read.

【小题1】B
【小题1】C
【小题1】C
【小题1】A
【小题1】C解析:
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No family wants its home to catch fire, but it's good to plan for a fire just in case (以防万一). Talk with your family about  36 to do if a fire starts.   37  should have a plan for getting out of the house. Be sure to choose a safe place to   38  after everyone gets away from the fire.

What should you do   39  there is a fire?  First,   40  people know about the fire. Yell (叫喊) the word "fire". Knock on the walls with your hands.

Then   41  the door of your room. If the door is warm, don't open it. If it's cool, open it just enough to  42 . If you see fire or much smoke, close the door fast.

If you can't see fire or smoke, you can go out of the door. Shut the  43  behind you. That will slow down the fire. Now find a   44 out. Stay away from the smoke. The air is the  45  near the floor. So it   46  be the safest to crawl(爬)when you leave the house.

If you can't leave your room,  close your door. Cover the crack (缝隙) under the door

  47   clothing. Then open the window or   48  the glass with a chair. Crawl out, of the window   49 .If the window is high off the ground,   50 jump! Wave a towel out of the window, and yell for help. When you get out of the house, run to the place where you and your family chose to meet.

1.

A.how

B.when

C.what

D.where

 

2.

A.Everyone

B.Someone

C.Anyone

D.No one

 

3.

A.visit

B.sleep

C.stand

D.meet

 

4.

A.unless

B.if

C.because

D.as

 

5.

A.let

B.teach

C.want

D.ask

 

6.

A.look

B.hear

C.feel

D.smell

 

7.

A.put out

B.find out

C.look out

D.take out

 

8.

A.window

B.door

C.house

D.room

 

9.

A.way

B.trip

C.time

D.plan

 

10.

A.best

B.worst

C.thinnest

D.least

 

11.

A.should

B.need

C.may

D.has to

 

12.

A.by

B.in

C.of

D.with

 

13.

A.clean

B.wash

C.break

D.make

 

14.

A.happily

B.loudly

C.excitedly

D.carefully

 

15.

A.can't

B.don't

C.not

D.no

 

Have successful people ever felt sad? Do they have any "secrets" to success? The answers to these questions can be found in US president Barack Obama's "back to school" speech. Here is a small part of his speech.

I know that sometimes, after watching TV, you may feel that you can be rich and successful without any hard work--that your ticket to success is through rapping (饶舌音乐) or basketball or being a TV star. But when chances come, you may not succeed.

The truth is, being successful is hard. And you may not succeed at everything the first time you try. That's OK. Some of the most successful people in the world have had the most failures. JK Rowling's first Harry Potter book was rejected(退稿)12 times before it finally came out. Michael Jordan lost hundreds of games and missed thousands of shots during his career (职业生涯). But he once said, "I have failed over and over and over again in my life. And that is why I succeed."

These people succeeded because they understand that you can't let your failures beat you--you have to let them teach you. You have to let them show you what to do differently next time.

No one's born being good at things. You become good at things through hard work. Don’t be afraid to ask questions. Don't be afraid to ask for help when you need it.

And even when you're struggling(挣扎), even when you're discouraged(泄气), and you feel like other people have given up on you--don't ever give up on yourself. Because when you give up on yourself, you give up on your country.

1.Why does Barack Obama talk about JK Rowling and Michael Jordan in the second paragraph?

A. To show that these two famous persons are different.

B. To show that writing and sports are difficult skills.

C. To show that the two persons were treated unfairly.

D. To show that being successful is hard.

2.Barack Obama believes ____________ in his speech.

A. you can be rich and successful without any hard work

B. you may succeed at everything the first time you try

C. you can't let your failures beat you

D. you shouldn't ask other people for help

3.What does the underlined sentence mean?

A. If you're discouraged, you should give up on yourself.

B. You should believe in yourself no matter how difficult it is.

C. When you're struggling, you'll feel like other people have given up on you.

D. If you are not struggling or discouraged, you can give up on yourself.

4.What's the best title of this small part of Mr. Obama's speech?

A. The way to succeed               B. Failures can help you

C. Don't give up on yourself            D. Barack Obama's success

 

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