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 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 !

根據(jù)材料內(nèi)容選擇最佳答案。

【1】You miss the object underwater when you want to touch it because________.

A.your eyesight is quite poorB.you are not quick enough

C.it disappears very quicklyD.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 sizeB.the weightC.the positionD.the color

【3】The underlined word " descend " probably means________in Chinese in this passage .

A.上升B.漂浮C.屏息D.下潛

【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 UnderwaterB.The Behavior of Light Underwater

C.The Brightness of Color UnderwaterD.The Direction of Light Underwater

Answer 1

【答案】

【1】D

【2】D

【3】D

【4】B

【5】B

【解析】

這是一篇說明文。文章主要講解了一些水下光學(xué)現(xiàn)象，并舉例說明水下顏色變化的原因。

【1】句意：當(dāng)你想觸摸水下的物體時，會摸不中，因為它沒有看上去那么近。

細節(jié)理解題。由第一段第二句“The objects appear closer to you than they exactly are.”可知，水下的物體沒有看上去那么近。故選D。

【2】句意：“潛水衣”的例子被用來解釋說明水下物體顏色的變化。

細節(jié)理解題。由第四段第四句“Watch carefully the changes in color as you descend in the water.”可知，“潛水衣”的例子被用來解釋說明水下物體顏色的變化。故選D。

【3】句意：劃線的“descend”在文中可能是“下潛”的意思。

詞義猜測題。由第四段第六句“As you go down deeper...”可知，劃線的“descend”在文中可能是“下潛”的意思。故選D。

【4】句意：下列哪一項正確？

細節(jié)理解題。由第二段最后一句“Objects under water will appear larger...”可知，在水中看到的物體比實際的體積大,所以 A項錯誤。由第四段第五句“The red part...the longest among these three colors...”可知，紅色的光波是三種顏色中波光最長的，所以B項正確。由第三段最后一句“And light is taken in as it moves down through the water.”可知，光在水下被吸收了，所以C項錯誤。由第四段倒數(shù)第二句“... you will look terrible, like a ghost!”可知，你看起來很可怕，像鬼一樣，所以D項錯誤。故選B。

【5】句意：這篇文章的最佳標(biāo)題是水下光學(xué)現(xiàn)象。

主旨大意題。本文首段首句“...light behaves differently in water...”是文章的主題句。通讀全文并結(jié)合主題句可知，文章主要講解了一些水下光學(xué)現(xiàn)象。故選B。

主旨大意題主要考查我們對一篇文章的深層理解程度以及在閱讀中準(zhǔn)確把握文章主旨大意的能力。一般針對某一語篇的主題、標(biāo)題或目的設(shè)題。凡是問文章標(biāo)題、大意或?qū)懽饕鈭D的題目都屬于主旨大意題，如第五小題：The best title of this passage is The Behavior of Light Underwater。我們在閱讀文章時，常常會發(fā)現(xiàn)一些表明作者觀點的主題句。找出文章的主題句是解答主旨大意題非常有效的方法之一。主題句常出現(xiàn)在文章的開頭或末尾，有時也會出現(xiàn)在中間部分，而本文的首段首句就是文章的主題句。