叶绿体碎片

No statues, no obelisks, no temples, nothing to suggest this could once have been home to the ancient world's great lost capital. When I came first to this area and to this site, I was shocked. Nothing was to be seen at the surface. No clue where to

发表于:2018-12-05 / 阅读(105) / 评论(0) 分类 遗失的法老城市

4. The archaeologists examined the ______ of ancient pottery. A. fragment B. fragrance C. flagrance D. retinue pottery pottery 陶器 pot 罐子 potential 潜能, 潜力 /pottery fragrance fragrance 芬

发表于:2018-12-15 / 阅读(116) / 评论(0) 分类 新东方赵丽词汇课堂

A big clue about whats behind the disappearing honeybees, also known as colony collapse disorder, or CCD: May Berenbaums team at the University of Illinois at UrbanaChampaign found that bees ribosomes were torn up. The ribosomes make the proteins tha

发表于:2018-12-24 / 阅读(51) / 评论(0) 分类 Scientific American(八)月

Grammar Girl here. Today's topic is sentence fragments. I often imagine that listeners are writing articles and essays and books, but I was recently reminded that some people make their living writing shorter things like headlines and ad copy, and th

发表于:2019-01-02 / 阅读(71) / 评论(0) 分类 英语语法 Grammar Girl

坚持不懈,直到成功。 我们每天的奋斗就像对参天大树的一次砍击,头几刀可能了无痕迹。每一击看似微不足道,然而,累积起来,巨树终会倒下。这恰

发表于:2019-01-03 / 阅读(120) / 评论(0) 分类 四六级词汇与结构练习

A fragment of a rainbow bright 天地晦暗,风急雨骤, Through the moist air I see, 望遥远边陲云霁天初, All dark and damp on yonder height, 一道七彩虹飞跨山颠, All bright and clear to me. 澄光尽万里恍惚如梦。 An

发表于:2019-01-17 / 阅读(28) / 评论(0) 分类 美国语文第五册