C
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 the surface, too. Be careful not to tell any stories about the big fish that got away. The 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(波长) 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 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 of about 6 to 9 meters underwater, you will look terrible, like a ghost(鬼怪)! And you have to wait for your return to the surface to enjoy the bright colors again.
Do you have a better understanding of the behavior of the light underwater? We need to be careful about the objects around us and explore(探索) their mysteries by ourselves.
76. You miss the object underwater when you want to touch it because___________.
A. your eyesight is quite poor.
B. your are not quick enough
C. it is not as close as it seems
D. it disappears very quickly
77. The example of the wet suit is used to explain the change of __________ of an object underwater in paragraph 4 .
A. the size B. the color C. the position D. the weight
78. The underlined word “descend” probably means _________ in paragraph 4?
A. move up B. move on water
C. stop breathing for a while D. go down
79. Which of the following is true according to the passage?
A. A four-meter-long fish looks three meters long underwater.
B. Much water will be taken in by the swimmer deep in the water.
C. The wavelengths of red light are longer than those of the blue light.
D. You will see a ghost if you go as deep as 6 to 9 meters into the sea.
80. Which of the following would be the best title of the passage?
A. The Standard of Color Underwater
B. The Direction of Light Underwater
C. The Beauty of Color Underwater
D. The Behavior of Light Underwater
第II卷(非选择题 共45分)
注意事项：
请考生用0.5毫米黑色签字笔将答案写在答题卡各题目指定区域内相应的位置，答案写在本试卷上无效。
VII.选词填空(10分)
A.阅读短文，从方框中选择适当的单词填空 (每词限用一次)。
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pen hope happy with birthday |
A man started to write a book when he was young. Many years later, however, he still didn’t finish it. On his eightieth (81) _________, his son asked him when he was going to finish it. He answered, “All my life. It has been my (82) _________ to finish writing my book, but if I really do so, I will live(83) _________no dream.”
When the old man died, his son found a (84) _________ still in his hand. In front of him were some pieces of writing, which were not finished. There was a (85) _________ smile on his face.
，我们将会及时处理。
