标签：花粉 相关文章
Certainly youve heard about people with allergies to dogs or cats. But did you know it can go the other way? There is a dog in Illinois in America that is allergic to humans. One day at the beginning of summer, a black lab named Adam was brought into
轻松英文阅读
除了染上花粉热我们很少有人会注意到花粉。可是显微镜下花粉却有着令人吃惊的颜色和形状--并能很好地传播。乔纳森 卓瑞给我们近距离的简要介绍了身负植物交配重任的迷人微粒。
TED公开课:生态谜云
现代科技提升天气预报精准度 Severe storms that cause heavy damage throughout the world are a reminder of how important it is to be able to predict the weather. A meteorological exhibition in Brussels earlier this month featured the latest
VOA双语新闻 2014年10月
-How does it work then? There are millions of insects out there in the air you sweeping. You target specific individuals.-That's right, so we have an individual honey bee which will be carrying this very small fine container on its back. And that's t
探索与发现2013年
It is a modified version of a commercially available robot quadcopter, 42mm across. (By comparison, a honeybee worker is about 15mm long.) 它就是市面上可以见到的那种四轴飞行器，只不过经过了改装，全长仅为42mm（相比之下
经济学人科技系列
Shelly the scientist 第12单元 Shelly saw it a mile away. A big, fat bumblebee. She kept her distance. Already today she had been stung twice. The bees were attracted to the sweet smell of the rare and exotic flowers. Their pink and yellow petals s
英语小达人
Some bees once built a fine honeycomb in a hollow tree-trunk．Now there are two kinds of bees in a hive：worker bees，who gather pollen and make honey all their lives，and drones，who lie lazily in the hive all day long doing nothing．It happen
趣味英语
古诗有云：忽如一夜春风来，千树万树梨花开。诗人想象力丰富，这里的梨花其实是雪，雪冒充了梨花。在这个啼莺舞燕，生机盎然的最美四月天里，有一种植物相关却在冒充雪。你懂的。本
英语口语
Bee 蜜蜂 Many people do not like bees. 许多人不喜欢蜜蜂。 Bees protect themselves and their hives by stinging humans. 蜜蜂会蜇人来自卫和保护蜂巢。 However, bees do a lot of jobs in nature. 然而，事实上蜜蜂能做许多事
与美国小学生一起学英文第3册
李华来到Larry的公寓，两人一起吃晚饭。今天我们要学两个常用语： out of whack和such a wreck. LL: -Achoo- I have been sneezing all day. LH: 你没生病吧？ LL: No, I don't think I'm sick. I think I have allergies. All the
美国之音《流行美语》
开春了，李华和Larry在后院种花种菜。今天我们要学两个常用语：cut out for和fruit. LH: Larry, 我说的没错吧，种地就是好，既能回归自然，又能有所收获。 LL: Uh ... I'm not sure about that. My back hurts
美国之音《流行美语》
One kind has in its eye a little green knob just like the head of a pin; these are called pin-eyed. The other kind has a fringe of little yellow dust-spikes instead; such flowers are called thrum-eyed. 其中一种的眼中，有一个小小的绿球，
英国学生科学读本
Sycomore figs are found throughout tropical Africa. In Southern Kenya they thrive along river banks. This is the story of one of those trees. Our African queen is a mature sycomore fig. She started life as a seed one hundred years ago. She provides f
自然百科2009年
1. Eskimos use refrigerators to keep food from freezing.爱斯基摩人用冰箱防止食物结冰。 2. Astronauts circling the Earth may get to see sixteen sunrises and sixteen sunsets every “day”
英文名句短语
Half the population could suffer from hay fever within 20 years，experts warn.. 专家们警告说，世界上一半的人口将在20年内患上花粉症。 Some 15 million Britons are currently afflicted, but with more people moving to cities, the
阅读空间
Don't let itchy eyes and a runny nose ruin your summer - here's some top tips to help you beat the sniffles and sneezes that come with hay fever. 不要让眼睛痛痒、鼻子堵塞毁了你的夏天。花粉症袭来之时，如下小贴士可以让你
阅读空间
The very young flowers of the buttercup are called buds. On the outside of each bud we see five little green leaves. These keep the bud safe from the cold and from the rain. 毛茛的花, 在很小的时候, 叫做花蕾。每一个花蕾的外面, 我
英国学生科学读本
新GRE阅读主要考验我们逻辑推理能力，在中国很少进行着方面的训练。逻辑推理能力在阅读中考察，从宏观上把握文章，抓住文章的主体结构是关键。下面为大家进行3种常见的GRE阅读主题结构
GRE英语
卢瑟集团的一位雇员贝尔斯一边开车一边打电话给莱克斯，说自己从汉密尔顿博士的实验室里盗出一朵花，却没留心路况，结果和克拉克养父的车子相撞了。克拉克养父把贝尔斯从车子残骸中拖出来，没留心自己身上沾上了这朵花的花粉。到家之后，养父性情大变，人开始懒懒散散
超人前传