【摘 要】
:
To find out whether bees can see colors, the following experiment1 is made. A round table is put in a garden and on the table is a piece of blue cardboard2 with a drop of syrup3 on it. After a short t
论文部分内容阅读
To find out whether bees can see colors, the following experiment1 is made. A round table is put in a garden and on the table is a piece of blue cardboard2 with a drop of syrup3 on it. After a short time, bees come to the syrup. The bees then fly to their hive4 and give the syrup to the other bees in the hive. Then they return to the feeding-place which they have found. After a while, the blue cardboard with the syrup on it is taken away. Instead of this card, a blue card is now put on the left side of the first feeding-place and a red card to its right. These new cards have no syrup on them. Very soon bees arrive again, and fly straight to the blue card. None go to the red card. The experiment has proved5 that bees can see colors.
为了调查蜜蜂是否能够识别颜色,有人做了以下实验:在花园里放上一张圆桌,把一张粘有糖浆的蓝色硬纸板放在桌上。不久,蜜蜂被糖浆吸引过来了。接着蜜蜂飞向蜂房,把糖浆传给蜂房里的其他蜜蜂。然后,它们又飞回它们发现糖浆的地方。过一段时间,粘有糖浆的蓝色硬板被撤走了。我们用一张蓝色卡片和一张红色卡片把它替换掉,其中蓝色卡片放在第一次觅食的位置的左边,红色卡片放在右边。这些卡片上没有糖浆。很快蜜蜂又一次回来了,它们径直飞向了蓝色卡片,而没有一只蜜蜂飞向红色卡片。这个实验证明了蜜蜂能够识别颜色。
其他文献
【栏目要求】 1. 将学生习作根据中考分值给出成绩; 2. 在应该修改的地方划线并标注序号; 3. 根据所标序号进行修改并说明修改的理由; 4. 给学生习作点评; 5. 请点评名师提供简历一份,包括:学校、职务、 职称、荣誉、教研教学成果、照片一张。 来稿请寄: 430079 华中师范大学外国语学院《中学生英语》 杂志社 初中部 收 王玉龙 男,现任教于江苏省镇江新区大港中学(省示范初中
enough是个兼类词,它既可以用作形容词和副词,也可以用作名词。 一、enough作形容词用时,意思是“足够的;充分的”,通常用于修饰名词。enough修饰名词时一般趋向于放在所修饰的名词前,也可以放在后面,但现代英语中不常用。如: We have enough time to do our homework. 我们有充足的时间做家庭作业。 There is room enough for
Did you ever wonder why you have no memory of when you were a baby or very young child? 你有没有想过,为什么你不记得当你是个婴幼儿时发生的事情? Researchers in the United States are investigating1 this question. The researcher
“王朝闻学术讲坛”是由中国艺术研究院美术研究所2012年设立并组织,以著名美学家、美术史论家、雕塑家王朝闻先生名字命名的中國美术高端讲坛。它与正在启动的“王朝闻美术奖”是美研所在当代文化建设中实现其自身担当的两项重要举措。讲坛的宗旨是“扩大知识视野,推进学术探究,分享思想成果,激扬文化力量”。它一方面依托于美研所固有的学术资源,同时汲取所外、院外的思想智慧,将延请海内外中国美术研究、创作领域的著名
摘要:简要介绍Visual Foxpm系统中配置文件的使用方法。 关键词:Visual Foxpro系统 配置文件 CONFIG.FPW文件 配置 中图分类号:TP311.131 文献标识码:B 文章编号:1002-2422(2008)01-0023-02 配置Visual FoxPro运行环境有以下几种方法:使用“工具”“选项”菜单命令;在Visual FoxPro“命令”窗口中
出生日期:2004年10月5日 愛好:运动 座右铭:赠人玫瑰,手留余香。 就读学校班级:河北省阜城县第四中学七(3)班 指导老师:张超The Happiest Day of My Life Last December, I joined a guitar competition. I practised hard for three hours every day and my guit
A new study says that going to bed late may be bad for our health. It may even short-en our life. The study was carried out in the United Kingdom. Researchers spent six-and-a-half years looking at the
This year’s summer holiday was the most unforgettable. I spent fifteen days at my grandparents’ home in the countryside. Every morning, I went to the field to help my grandparents do farm work after
When four young scientists teleport1 to a certain universe, their physical forms change and they get superhuman abilities. They must learn to control their abilities and work together as a team to sav
More and more of my classmates have mobile phones now. I also want one, but my mother doesn’t buy one for me. Mother said, “Teenagers shouldn’t use mobile phones, and it’s bad for your study.” I don’