There's much to see under the sea , but you need to remember that light behaves differently in water than in air . The objects appear closer to you than they exactly are . You might find yourself reaching out to touch something and completely missing it.
Objects under water will appear larger than they would on surface , too . Be careful not to tell any stories about the big fish that got away. That fish might not be so big after all ! It's just because sometimes things can seem to be as much as about 33 percent bigger in water!
What's more , in deeper water , colors just don't seem as bright . In fact , it looks as if some colors are missing . Remember the color of an object results from the wavelengths of light that are reflected from its surface . And light is taken in as it moves down through the water.
Swimmers wear wet suits to keep warm underwater . Let's take a bright red,yellow , and blue wet suit as an example . These colors are hard to miss on the surface of water.Watch carefully the changes in color as you descend in the water . The red part now looks almost black because the red light wavelengths , the longest among these three colors , are missing . As you go down deeper, the same thing will happen to the yellow part and in the end to the blue part . Even at a place about 6 to 9 meters underwater , you will look terrible, like a ghost! And you have to wait for your return to the surface to enjoy the bright colors again !
根据材料内容选择最佳答案。
1.You miss the object underwater when you want to touch it because________.
A.your eyesight is quite poor B.you are not quick enough
C.it disappears very quickly D.it is not as close as it seems
2.The example of the wet suit is used to explain the change of________of an object underwater .
A.the size B.the weight C.the position D.the color
3.The underlined word " descend " probably means________in Chinese in this passage .
A.上升 B.漂浮 C.屏息 D.下潜
4.Which of the following is true ?
A.A four-meter-long fish looks three meters long underwater
B.The wavelengths of red light are longer than those of blue light
C.Much water will be taken in by the swimmer deep in the water
D.You will see a ghost if you go as deep as 6 to 9 meters into the sea
5.The best title of this passage is________.
A.The Standand of Color Underwater B.The Behavior of Light Underwater
C.The Brightness of Color Underwater D.The Direction of Light Underwater
One day a lion was sleeping under the sun . Suddenly he felt something on his face . Then a small mouse fell to the ground.
“I will kill you for waking me up ! ” the angry lion said.
“I'm sorry . Please let me go . I have a big family to feed .” said the mouse. “You are of no use to anybody . You are even too small to eat ! ” the lion said.
“No one's size tells the value of his life , ” the mouse said . “But I'll make you a promise . If you let me go , one day I will repay you .”
The lion laughed , “ It's impossible for a mouse to save a lion's life . But go and feed your children and never show your face again . ” The mouse left quickly . After that , he decided to keep his promise.
One day , hunters caught the lion and put him in a cage . The lion lay there sadly .
Suddenly , he saw a small mouse outside the cage . The lion recognized the mouse as the same one he had almost killed a long time ago . Without a word , the mouse began to work , and during the night , he bit through the cage . The lion ran into a forest safely . Before he left , he looked at the tired mouse and said quietly , “I will remember your help , and lions will no longer kill mice as long as I am alive . ”And so it was from that day on.
Don't judge a person by his size or appearance . Everyone has his own value.
根据材料内容选择最佳答案。
1.Why did the lion feel angry with the mouse ?
A.Because the mouse didn't feed his family B.Because the mouse was too small
C.Because the mouse woke him up D.Because the mouse didn’t help the lion to go out .
2.What did the lion think of the mouse at first ?
A.He was no use with small size B.He was helpful to other animals
C.He couldn't feed his family well D.He had great value with small size
3.The underlined word " repay " has the closest meaning to “________” .
A.thank B.return C.support D.hate
4.Who saved the lion at last ?
A.The hunter B.The mouse C.The lion's child D.The mouse's child
5.What can we learn from this text ?
A.The lion was caught by the hunter.
B.The mouse was hard to feed his children
C.The size played an important role in one's life.
D.Don't judge the value of someone according to his size or appearance.
父母给予了我们生命，又含辛茹苦地抚养我们长大，根据以下要点，写一篇不少于80字的短文。
1、你和父母相处如何？
2、简述一次你和父母相处的经历。
3、从这次经历中，你感悟到如何和父母相处呢？
The Experience Taught Me How to Love My Parents.
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
Years ago, while I lived in England, one of my college tasks（任务） was to help people with special needs.
That’s summer, I v1. to look after Nancy, a 10-year-old girl, in a school for disabled children. When we first met, I n2. her hands couldn’t move at all. Then I had a strong f3. to help her.
All her teachers always try to do everything for Nancy. They even thought it would be a great success if Nancy was able to dress h4.. But I saw more in her. She always wanted to put a string t5. the hole of a key.
I believe Nancy could do more, so I encouraged(鼓励) her to do something herself through exercises and t6.. At first, Nancy often failed and got upset. Sometimes I wanted to give up, too.
However, only a week later, I was quite surprised to see Nancy was able to do many things a7.! The look on that girl’s face m8. the sun to me at that time! All her teachers could hardly i9. these and they all cried with joy.
Maybe we s10. never tell the disabled that they can’t do this or that.
完成句子
1.It’s not _____________________________________________________________________.
（学生们在学校太多地依赖老师是不正常的）（normal）
2.There is ____________________________________________________________________.
（父母们没有必要把他们的孩子和别的孩子比较）（compare）
3.Neither of us ________________________________________________________________.
（我们两个都没有放弃在周末为残疾人筹钱）（give up）
4.Why not ____________________________________________________________________.
（如果你呼吸有困难，为什么不拍个X光呢？）（trouble）
5.We should __________________________________________________________________.
（为了和他们相处好，我们应该更多地和那些生病的邻居交流）（in order to）
GreenHome campaigners (发起者) really love the natural world. In fact, we love it so much that we’re determined (决心) to do our best to protect it. 1.For that, we need money too. GreenHome can be strong only with the support from people like you. 2.If the joy of walking through green forest, the excitement of climbing ancient rocks, or even the simple pleasure of watching wildlife in its own habitat (栖息地) really moves you, then share GreenHome’s idea of the world. Please tum that idea into some support today.
3.So take action right now! Even a very small amount, like $1 a month, will soon build up into a valuable contribution (贡献) to protecting the natural world we love so much. 4.We’ll also use it to develop ways to deal with environmental problems.
Think about it another way. If you want a future where you can continue to do the things you love in the great outdoors, you need to make sure you’ve got a great outdoors to do them in. 5.And this way is simple enough—that’s got to be worth $l a month.
A.The natural world will be better.
B.Giving GreenHome your support is one way you can do that.
C.But determination alone will not protect the environment.
D.That’s why we’re asking you to join us today.
E.And we won’t just use it to stop bad things.
F.Everything we do costs money.
