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Do you know why different animals or pests(害蟲) have their special colors? Colors in them seem to be mainly used to    1   themselves.
Some birds like eating locusts(蝗蟲), but birds cannot    2  catch them. Why? It is because locusts change their   3   with the change of the colors of crops. When crops are green, locusts look    4 . But as the harvest time comes, locusts change into the same brown color    5  crops have. Some other pests whose colors are   6   plants are easily found and eaten by   7  . So they have to hide themselves for lives and appear only   8  .
If you    9 animals’ life, you’ll find the main use of colors is to protect    10  . Bears, lions and other animals  11  quietly through forests. They cannot be easily seen by hunters   12  their colors are much like the trees.
Colors are useful not only on the land, but also in the   13 . A kind of fish can   14 a kind of black liquid(液體) when they face danger. The liquid spreads over quickly, so they cannot be found by their enemies and can quickly swim away. That is   15 they can live safely though they are not strong at all. So colors are really useful to animals.

小題1:

A．show

B．protect

C．kill

D．interest

小題2:

A．easily

B．freely

C．safely

D．differently

小題3:

A．sizes

B．smells

C．colors

D．shapes

小題4:

A．yellow

B．red

C．black

D．green

小題5:

A．so

B．as

C．like

D．with

小題6:

A．different from

B．same as

C．similar to

D．opposite with

小題7:

A．other

B．others

C．the others

D．another

小題8:

A．in the morning

B．at noon

C．at night

D．in the daytime

小題9:

A．study

B．write

C．draw

D．work

小題10:

A．them

B．themselves

C．it

D．itself

小題11:

A．run

B．fight

C．move

D．eat

小題12:

A．because

B．so

C．and

D．although

小題13:

A．forests

B．desert

C．sea

D．mountains

小題14:

A．keep out

B．come out

C．look out

D．give out

小題15:

A．why

B．when

C．how

D．where

小題1:B
小題2:A
小題3:C
小題4:D
小題5:B
小題6:A
小題7:B
小題8:C
小題9:A
小題10:B
小題11:C
小題12:A
小題13:C
小題14:D
小題15:B

試題分析：這篇短文主要介紹了動物的一種自我保護方法，他們通過改變自身顏色來適應周圍環境，不讓敵人發現自己。
小題1:聯系下文描述，可知此處指的是他們的顏色主要是用來保護他們自己，故選B，保護。
小題2:副詞辨析。A. 容易地；B.自由地，免費地；C. 安全地；D. 不同地。聯系下文描述，可知此處指的是鳥類不能輕易地捉住他們，故選A。
小題3:聯系下文with the change of the colors of crops.描述，可知此處指的是隨著莊稼物的顏色改變他們的顏色，故選C，顏色。
小題4:聯系前文When crops are green, 描述，可知此處指的是他們看起來是綠色的，故選D，綠色的。
小題5:詞義辨析。A. 因此；B. 作為，如同；C.和……一樣；D.帶有，伴隨。結合語境可知此處指的是變成和莊稼一樣的顏色。選項C是介詞，不能引導從句，故選B。
小題6:短語辨析。A. 與……不同，不同于；B.和……一樣；C. 與……相似；D. 搭配錯誤，opposite一般和to搭配使用，表示與……相反。結合語境可知此處指的是顏色不同于莊稼的害蟲，故選A，不同于。
小題7:詞義辨析。A. 另外的，其它的；B. 其它人；C. 其余的；D. 多個中的另一個。結合語境可知此處指代的是其它動物，故選B。
小題8:結合語境可知此處指的是他們只在夜間出現，故選C，在夜間。
小題9:動詞辨析。A. 學習，研究；B. 寫作；C. 繪畫；D.工作，運作。句意：如果你研究動物們的生活，故選A。
小題10:結合語境可知此處指的是顏色的主要作用是保護他們自己，故選B，他們自己。
小題11:動詞辨析。A.奔跑；B. 打架，戰斗；C. 移動，感動；D.吃。結合語境可知此處指的是這些動物在森林里面靜靜地移動，故選C。
小題12:連詞辨析。A.因為；B. 因此；C. 和，并且；D. 雖然，盡管。句意：因為他們的顏色和數目非常一樣，他們不能輕易地被獵人發現。故選A。
小題13:聯系后一句描述，可知此處指的是在海洋當中。故選C，海洋。
小題14:短語辨析。A. 阻止進入；B.出現，出版；C.注意，照料；D. 分發，發表。結合語境可知此處指的是一種魚能噴一種黑色的液體。故選D。
小題15:疑問詞辨析。A. 為什么；B. 什么時候；C. 如何，怎樣；D. 在哪兒。結合語境可知此處指的是那就是為什么他們一點也不強壯卻能安全地生活的原因。故選B。
點評：這篇短文內容比較簡單，理解不難。各小題與上下文聯系比較緊密，答題中一定要注意聯系上下文。答完后多讀幾遍，看看是否符合邏輯，適當修改。個別小題可以當作單獨的詞義辨析題來做，先區分詞義，結合語境選出最能使語句通順的答案。

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