Question

【題目】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. 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(波長) of light that are reflected(反射) 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 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!

【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 is not as close as it seems

【2】The underlined word “descent” probably means “ ” in Chinese in this passage.

A. 下潛 B. 漂浮 C. 屏息

【3】Which of the following is true?

A. A fourmeterlong 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.

【4】The best title of this passage is .

A. The Standard of Color Underwater

B. The Direction of Light Underwater

C. The Behavior of Light Underwater

Answer 1

【答案】

【1】 C

【2】 A

【3】 B

【4】 C

【解析】

文章大意：由于光在水中的表現(xiàn)與在空氣中的表現(xiàn)不同，故而在海底，物體看起來比它們更接近你。水下物體看起來會比表面上的物體大。比如魚可能也不會有傳說的那么大主要是因為有時水中的東西看起來大約多了33％！另外，在更深的水中，顏色看起來并不那么明亮。物體的顏色是由從其表面反射的光的波長產(chǎn)生的。當光線在水中向下移動時，光線會被吸收，顏色也會隨著在水中下降的深度變化而變化。

【1】細節(jié)理解題。題干句意：You miss the object underwater when you want to touch it because .當你想要觸摸水下的物體時，你會錯過它，因為 。選項A. your eyesight is quite poor你的視力很差。B. you are not quick enough你還不夠快。C. it is not as close as it seems它不像看上去那么近。結(jié)合原文信息，根據(jù)第一段The objects appear closer to you than they exactly are.這些物體看起來比實際上離你更近。第二段首Objects under water will appear larger than they would on the surface, too.水下的物體也會比在水面上看起來更大�？芍�正確答案為：C

【2】詞義猜測題。題干句意：The underlined word “descent” probably means “ ” in Chinese in this passage.帶下劃線的單詞descent在漢語中可能是 意思。結(jié)合原文信息，根據(jù)第三段And light is taken in as it moves down through the water.當光線在水中向下移動時，光線會被吸收。可知descent應(yīng)為moves down的近義詞。故正確答案為：A

【3】細節(jié)理解題。題干句意：Which of the following is true?下列哪一項是正確的？選項A. A fourmeterlong fish looks three meters long underwater.一條四米長的魚在水下看起來有三米長。B. The wavelengths of red light are longer than those of blue light.紅光的波長比藍光的波長更長。C. Much water will be taken in by the swimmer deep in the water.游泳者在深水中會吸入很多水。結(jié)合原文信息，根據(jù)最后一段The red part now looks almost black because the red light wavelengths, the longest among these three colors, are missing.紅色的部分現(xiàn)在看起來幾乎是黑色的，因為在這三種顏色中波長最長的紅光不見了�？芍�正確答案為：B

【4】標題判斷題。題干句意：The best title of this passage is .這篇文章最好的標題是 。選項A. The Standard of Color Underwater水下顏色標準。B. The Direction of Light Underwater水下光的方向。C. The Behavior of Light Underwater水下光的特性。結(jié)合原文信息，根據(jù)文章手句There's much to see under the sea, but you need to remember that light behaves differently in water than in air.在海底可以看到很多東西，但是你需要記住光在水中和空氣中的表現(xiàn)是不同的�？芍�正確答案為：C