题目内容
18.When animals and plants use color to be noticed it is called advertising coloration(着色).Advertising coloration can be used to either warn or attract animals.The bright colors of flowers and berries ale advertising coloration that attract animals.Flowers need to be pollinated(授粉)to reproduce.Bees and hummingbirds ale attracted to bright colors and will pollinate the flowers.Some pollinated plants will produce berries.These berries will turn a bright color when they are ripe.The bright color lets berry-eating birds know the fruit is sweet and safe to eat.After birds eat the berries,the seeds will pass through their digestive system and be left behind.Some of the seeds left behind will grow into new plants!
Color is also used to attract mates(配偶).Many male birds like the northern cardinal are brightly colored to attract females.Bright feathers can be a sign of how healthy the bird is!Female birds are naturally attracted to healthier males because their offspring will be healthier.Female birds are often less colorful.This helps hide them when they are nesting.
Advertising coloration is also used to warn animals away.The ladybug has bright orange wings with black spots.Its coloring warns meat-eating animals that the ladybug tastes awful.The striped skunk(带条纹的臭鼬)has white stripes that are a warning to meat-eating animals that they may be in for an unpleasant surprise if they try to attack.
Some animals,like the red-eyed tree frog,may scare enemies away with their color,Red-eyed tree frogs sleep during the day.If a meat-eating animal comes up to them and they open their eyes,the bright red color of their eyes might shock the animal long enough to give the red-eyed tree flog time to hop away to safety.
56.The best title for the passage would beA.
A.Advertising Coloration B.Animal Colours
C.Plant Colours D.Interesting Colours
57.Which function of advertising coloration does the 2nd paragraph mainly explain?B
A.Warning animals. B. Attracting animals.
C.Attracting mates. D.Reproducing.
58.Which of the following is the correct order of the events according to Paragraph 2?C
a.Birds east the berries.
b.Seeds grow into new plants.
c.Some plants produce berries.
d.Bees pollinate the flowers.
e.These berries turn a bright color.
f.The flowers have bright colors.
A.a→b→f→e→d→c B.e→c→a→b→f→d
C.f→d→c→e→a→b D.b→e→a→c→f→d
59.Female birds decide whether a male bird is healthy according toD.
A.whether it is big in size
B.whether it fights its enemy bravely
C.whether it has healthier offsprings
D.whether it has bright coloured feathers
60.Which of the following is true?D
A.Female northern cardinals have more colorful feathers than males.
B.Red-eyed tree frogs sleep during the day with their eyes open.
C.If a meat-eating animal happens to eat a ladybu9,it will be poisoned to death
D.All the animals named in the last two paragraphs protect themselves with their colours.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了动物和植物用颜色来注意它叫广告色,广告色可用来警告或吸引动物.
解答 56.A.主旨大意题.根据第一段When animals and plants use color to be noticed it is called advertising coloration(着色).Advertising coloration can be used to either warn or attract animals可知主要讲了动物和植物用颜色来注意它叫广告色,广告色可用来警告或吸引动物;故选A.
57.B.细节理解题.根据第二段The bright colors of flowers and berries ale advertising coloration that attract animals.Flowers need to be pollinated(授粉)to reproduce可知第二段解释广告色彩的吸引动物的功能;故选B.
58.C.细节理解题.根据第二段可知顺序为花有鲜艳的颜色,蜜蜂授粉的花,有些植物产生浆果,这些浆果变成明亮的颜色,后鸟吃浆果,种子长成新的植物;故选C.
59.D.细节理解题.根据第三段Many male birds like the northern cardinal are brightly colored to attract females.Bright feathers can be a sign of how healthy the bird is可知许多雄性鸟类喜欢北方的基本色彩鲜艳吸引女性.鲜艳的羽毛可以是鸟是多么健康的标志;故选D.
60.D.细节理解题.根据最后一段Some animals,like the red-eyed tree frog,may scare enemies away with their color,Red-eyed tree frogs sleep during the day可知一些动物用保护自己的颜色被命名;故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.