字形肋

Fish 鱼 Fish live in water and most fish breathe through their gills. 鱼生活在水中,大多数的鱼靠鳃呼吸。 They have fins, scales, eyes and a mouth. 它们有鳍、鳞、眼睛和嘴巴。 They have a body part for hearing. 它们有接

发表于:2018-12-13 / 阅读(63) / 评论(0) 分类 与美国小学生一起学英文第1册

This is Scientific American's 60-Second Science. I'm Karen Hopkin. This will just take a minute. Fingers are pretty nifty. They let you to grab a latte, type on a keyboard, even pull up your pants. But did you ever wonder: where do fingers come from?

发表于:2018-12-24 / 阅读(67) / 评论(0) 分类 Scientific American(九)月

Fins 鱼鳍 Fish can swim well with their fins in water. 鱼因为有鳍能在水里畅游。 Also, fish cannot move without fins. 相反的,没有鱼鳍,鱼就不能游了。 Do you know that different fish have different shapes of fins? 你知道

发表于:2019-01-10 / 阅读(63) / 评论(0) 分类 与美国小学生一起学英文第6册

Scientists Explore Underwater Volcanoes 科学家探索海底火山 What covers nearly 29 million square kilometers of this planet beneath the sea? The answer is seamounts. Seamounts are mountains, usually volcanoes, that rise up from the sea floor.

发表于:2019-01-12 / 阅读(65) / 评论(0) 分类 2016年VOA慢速英语(十)月

14You are the children of the Lord your God. Do not cut yourselves or shave the front of your heads for the dead, 2for you are a people holy to the Lord your God. Out of all the peoples on the face of the earth, the Lord has chosen you to be his trea

发表于:2019-01-26 / 阅读(73) / 评论(0) 分类 申命记

DNA Testing to Help Sharks Keep Fins In a study in the journal Endangered Species Research, shark fins on sale were shown to be from a specific region in which shark populations have collapsed, evidence that may help change fishing regulations. Cynth

发表于:2019-01-30 / 阅读(139) / 评论(0) 分类 60秒科学