题目内容
.—Why do English people talk so often about the weather when they start a conversation?
—Well, it’s probably because the weather is a(n)________ topic.
safe B. sensitive C. amazing D. Ordinary
A
一诺书业暑假作业快乐假期云南美术出版社系列答案请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
注意：请将答案写在答题卡上相应题号的横线上。每个空格只填1个单词。
Color use in nature
Nature is very colorful, full of different hues（色调）that delight the eye. What makes these colors and why do they exist?
Causes of Colors in Nature
Colors in nature are formed in two ways. Pigments, like the melanin in skin and many animal furs, produce most blacks, browns, reds and yellows. Most plants are green due to chlorophyll（叶绿素）. Other colors are caused by structure, like many greens, blues, and whites. Blue bird’s feathers actually contain black pigment, but their structure causes them to appear blue. The scattering of light by tiny dust particles in the air, viewed against the black background of space, makes the sky look blue too.
Color Use in Plants
Color has a great effect on the survival of plants and animals. Flowers have bright hues and patterns to attract insects. These insects move from one flower to another, making sure seeds are produced. Bees can see colors we cannot, i.e. ultraviolet, and follow these patterns of stripes or dots to the inside of the flower.
Not only flowers but also fruits use color for the good of the plant. An unripe fruit mixes in with the leaves, but ripe berries contrast, becoming more appealing to the creatures who eat them. Birds are especially drawn to red fruit, and in turn help the plant by broadcasting its seeds.
Camouflage（伪装）in Nature
Many colors and patterns camouflage animals who want to avoid enemies. Some animals have damaging shapes to break up their outline, so an enemy will not recognize them. The eye, a very recognizable animal characteristic, is often disguised by a black stripe or patch. Light color below makes up for the shadow on the underside of many fish, amphibians and mammals.
Some animals even change colors to better camouflage themselves, seasonally like the snowshoe hare.
Warning Coloration and Mimicry（动态伪装）
Warning colors make an animal more visible rather than hidden. These usually indicate a negative aspect of the animal, like the bad taste of a monarch butterfly, smelly smell or painful bite of a bee. Usually black and a contrasting color (white, yellow, orange or red) form a striking pattern in these creatures, and frighten their enemies away. Nature is tricky, though, and sometimes harmless creatures pretend the patterns of harmful ones to scare off animals living on meat too.
Social Coloration in Nature
Sometimes coloration is important socially. Male birds, typically more colorful, defend their territories and attract females. Eggs may use color and pattern to remain hidden. When they hatch, parents feed the nestlings when they see the bright pattern in their gaping mouths.
Taking a closer look at nature throws light on how color is used in marvelous ways!
| Color use in nature | |
| ___【小题1】____ for colors in nature | Many colors are caused by 【小题2】 which produce most blacks, browns, reds and yellows. |
| Other colors exist due to 【小题3】 , like blue bird’s feathers, which appear blue but actually contain black pigment. | |
| Color use in Plants | Flowers have bright hues and patterns to attract insects, and then insects’ moving from one flower to another makes seeds 【小题4】 . |
| Fruits use colors, ripe color for example, to protect and help 【小题5】 . | |
| Color use in animals | Colors help many animals 【小题6】 their killers. For example, damaging shapes can break up their outline, so an enemy will not recognize them. |
| Some animals, like snowshoe hares, 【小题7】 change colors to camouflage them. | |
| Using warning colors to make themselves more【小题8】 , thus frightening their enemies away. | |
| Harmless creatures 【小题9】 to be those harmful ones to scare off their enemies. | |
| Social use in nature | Animals use colors to defend their territories and attract the 【小题10】 sex. |
第II卷（共35分）
第四部分：写作（共两节，满分35分）
第一节 对话填空（共10小题；每小题1分，满分10分）
阅读下面对话，掌握其大意，并根据所给字母的提示，在标有题号的右边横线上写出一个英语单词的完整、正确形式，使对话通顺。
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W: Hi, Ben, Where have you been? M: I’ve been to the library and (76)b some English books. Why do you ask? W: I thought you’d been to the post office. Did you find the money I left on the desk? M: Yes, 10 dollars (77)a . But I don’t know what it is for. W: Didn’t you see the note I left to you with the money? M: Note? Why note? I don’t see any note. W: (78)R ? It’s very strange. I left the money with a note (79)s______ I wanted you to go to the post office and get some (80)e______ and stamps for me. I also put the ink bottle on them in case they might not draw your attention. M: I see now. Why cant’ you go and get them (81)y______? The post office is only about 30 (82)m walk from here. We often go for a walk there after having (83)s . W: Of course I know how far it is from our school. I can’t go there myself because I’m very (84)b_______ doing some chemical experiments in the lab. And what’s more, I have to prepare for my English exam. You know I failed the last one. If I can’t pass this time , a hard time will be (85)w for me. |
(76)_________ (77)_________ (78)_________ (79)_________ (80)_________ (81)_________ (82)_________ (83)_________ (84)_________ (85)_________ |