matter.宇宙是由物质组成的.比如最后一个例句，接下去问：那么什么是物质呢？就可以说：Then what is matter?回答可以是：Matter is something that occupies space and can be perceived by one or more senses;Matter is a physical body,a physical substance,or the universe as a whole.物质：占...
All matter consists of atoms, which, in turn, consist of protons, neutrons and electrons. Both protons and neutrons are located in the nucleus, which is at the center of an atom. Protons are positively charged particles, while neutrons are neutrally charged. Electrons are negatively charged, a...
neutrons and electrons. Scientists only speculate what dark matter is made of. It could be composed of baryons but it could also be non-baryonic, which means consisting of different types of particles.
英语翻译What's the matter?You've been sitting there for ages,just staring into space.I told the Browning I'd send them a postcard.Now I don't know what to say. 答案 怎么了?你坐在这里发呆好久了我告诉BROWNING我会寄明星卡给他们,但是不知道说什么相关推荐 1英语翻译What's the matter?You'...
The remaining 68% of the universe is thought to be dark energy—a topic for another day. Credit: NASA's Goddard Space Flight Center The fact that so much of our universe consists of dark matter makes the stuff worth studying. But by figuring out dark matter, we can also expect to ...
词形变化:动词过去式:mattered 过去分词:mattered过去分词:mattered 现在分词:mattering英英解释:名词 matter:that which has mass and occupies space同义词：substancea vaguely specified concern同义词：affair, thingsome situation or event that is thought about同义词：topic, subject, issuea problem(...
Vision is the art of seeing what is invisible to others," Jonathan Swift says.I walked into a wild third-grade classroom. Music was played1 and students were applying make-up,throwing a football indoors, and_2 wherever they could find 3_. I was a mid-year 4. The previous5said he cou...
Unit 1 What’s the matter? 教学目标: 1语言目标:描述健康问题的词汇,及如何根据别人的健康问题提建议。 2技能目标:能听懂谈论健康问题的对话材料;能根据别人的健康问题提建议; 能写出重点单词和重点句型,并能描述怎样对待健康问题。。 3情感目标:通过开展扮演病人等活动,培养学生关心他人身体健康的品质。
It changed our way of looking at Earth. There is our planet, floating like an oasis in the magnificent emptiness of space.它改变了我们看待地球的方式。这就是我们的星球，漂浮在浩瀚无垠的太空中，就像一片绿洲。For the first time, there we all were — bacteria, mammals, insects and plants — ...
There is littlematterin outer space. It is a hard vacuum, without any air. This also makes it extremely cold. There are some stray particles andradiation, though. Ironically, even though space itself is cold, due to the lack of particles to interact with, it is difficult to get rid of...