8. Why do leaves change colors?相关知识点: 试题来源: 解析 A. They save some energy to stay alive.B. The chlorophyll stores some food away.C. They have to get used to the cold weather.D. They can’t get enough energy from the sun....
Why do leaves change color in autumn? A. Because of the change in temperature. B. Because of the lack of sunlight. C. Because of the change in the length of the day. D. Because of the chemical process in the leaves. 相关知识点: ...
题目Why do leaves change color in autumn? A. Because of the cold weather. B. Because of the lack of water. C. Because of the change in sunlight. D. Because of the wind. 相关知识点: 试题来源: 解析 C。解析:秋天树叶变色主要是因为光照时间和强度的变化。随着秋天的到来,白天变短,光照减少...
3.(2017·静安·二模)Why do leaves change colour?One of nature's most beautiful (1)is a forest full of bright autumn colors.Imagine making art with all those colors of paint!Leaves in their autumn colors are beautiful. Did you ever wonder why a tree's leaveschange color? To answer this...
今天我们为大家推荐绘本《Why do leaves change color?》 作。者。简。介 Betsy Maestro 贝齐·马埃斯特罗,曾经当过老师,后专门从事童书创作,她和丈夫一起合作写了一百多本童书,其中《美国故事》系列深受小读者欢迎。马埃斯特罗一家住在美国康涅狄格州莱姆...
When the weather gets colder, we see green leaves turn red, orange, brown or yellow. They make autumn a colourful season. But do you know why leaves change their colours?Leaves get their colours from "pigments (色素)". When leaves are green, they have a pigment called chlorophyll (叶绿素...
Why do leaves change color in autumn? A. Because of the cold weather. B. Because of the less sunlight. C. Because of the change of the season. D. Because of the strong wind. 相关知识点: 试题来源: 解析 C。本题考查树叶在秋天变色的原因。树叶在秋天变色是因为季节的变化,选项 A 寒冷的...
Why do leaves change color? 叶子为什么变色? There's nothing to fear. 没有什么可担心的 The leaves are changing color for a good reason. 树叶会变颜色是有原因的 The leaves are changing color for a new season. 树叶会变颜色是为了...
Why do leaves change color in autumn? A. Because of the weather. B. Because of the temperature. C. Because of less sunlight. D. All of the above. 相关知识点: 试题来源: 解析 D。解析:秋天树叶变色是因为天气、温度和日照减少等多种因素共同作用。所以 D 选项正确。
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