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阅读下列短文,从文后各题所给的四个选项中选出一个最佳答案。
Do you know why different animals or pests(害虫) have their special colors? Colors in them seem to be mainly used to ___1___ themselves.
Some birds like eating locusts(蝗虫), 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(液体) 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.
小题1:
A.showB.protectC.killD.interest
小题2:
A.easilyB.freelyC.safelyD.differently
小题3:
A.sizesB.smellsC.colorsD.shapes
小题4:
A.yellowB.redC.blackD.green
小题5:
A.soB.asC.likeD.with
小题6:
A.different fromB.same asC.similar toD.opposite with
小题7:
A.otherB.othersC.the othersD.another
小题8:
A.in the morningB.at noonC.at nightD.in the daytime
小题9:
A.studyB.writeC.drawD.work
小题10:
A.themB.themselvesC.itD.itself
小题11:
A.runB.fightC.moveD.eat
小题12:
A.becauseB.soC.andD.although
小题13:
A.forestsB.desertC.seaD.mountains
小题14:
A.keep outB.come outC.look outD.give out
小题15:
A.whyB.whenC.howD.where

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

试题分析:这篇文章讲述了不同的动物和害虫都会有着和环境相似的颜色,这些颜色主要是用来保护它们自己不受到伤害。
小题1:A. show展示   B. protect 保护  C. kill杀害   D. interest兴趣 根据句意:它们的颜色主要是用来自我保护。
小题2:A. easily 容易地   B. freely自由地   C. safely安全地  D. differently不同地 根据句意:一些鸟喜欢吃蝗虫,但是它们不能轻松的捉到蝗虫。故选A
小题3:A. sizes尺寸   B. smells 气味    C. colors 颜色   D. shapes形状  根据句意:因为蝗虫会随着农作物颜色的变化而改变自己的颜色。故选C
小题4:A. yellow黄色   B. red红色  C. black黑色  D. green绿色  根据句意:当农作物是绿色时,蝗虫看起来就是绿色的。故选D
小题5: 根据句意:当成熟季节来临的时候,蝗虫就会变成和农作物同样的深棕色的颜色。the  same as与…一样 故选B
小题6:A. different from不同于   B. same as与…一致      C. similar to 与相似   D. opposite with与…对立 根据句意:一些害怕的颜色与植物的颜色完全不同,很容易被发现。故选A
小题7:根据句意:一些害怕的颜色与植物的颜色不同,很容易被发现,被其他鸟类吃了。故选B
小题8:A. in the morning在早上   B. at noon 在中午  C. at night 在晚上  D. in the daytime在白天 根据句意:所以它们为了生存下来,只在晚上出来。故选C
小题9:A. study研究   B. write写作   C. draw 画画   D. work工作 根据句意:如果你研究动物的生活 故选A
小题10:根据句意:你就会发现他们身体的颜色主要的用途就是保证它们自己。故选B
小题11:A. run奔跑   B. fight 斗争  C. move 移动  D. eat吃  根据句意:熊,狮子还有其他动物通过森林的时候,能够很安静的走动。故选C
小题12:A. because因为  B. so因此    C. and 和   D. although虽然  根据句意:它们不会轻易的被猎人发现,是因为它们的颜色和树木的颜色很像。故选A    
小题13:A. forests森林   B. desert 沙漠  C. sea 大海   D. mountains山脉 联系后文可知:颜色不仅仅在陆地上有用,在海洋里也有用处。故选C
小题14:A. keep out 阻止进入        B. come out出现     C. look out注意    D. give out发出 根据句意:一种鱼在它遇到危险的时候,就会发出一种黑色的液体。故选D
小题15:A. why 为什么  B. when 何时  C. how 怎样  D. where哪里  根据句意:那就是它们为什么能够平安的生活,虽然它们不够强大。故选A
点评:本片文章结构不难,文章中没有太多的生词,文脉清晰。对于说明文的阅读,首先花几分钟进行整体的阅读,弄清楚作者所陈述的客观事物的特征,作用,影响等。理解这些方面的分别对事物的描述所起的作用,再结合语法,上下文及固定结构仔细作答。
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