[0:02.043]UNIT 2 Talking About Lessons [0:06.942]Lesson 6 What's an Insect? [0:09.963]Let's talk. [0:12.493]What are you doing? [0:13.932]Uh..., nothing. [0:16.289]I'm not [0:16.779]telling you. [0:18.024]Oh, please. [0:19.697]OK. It's a ladybug. [0:

发表于:2018-12-13 / 阅读(38) / 评论(0) 分类 新路径小学英语五年级上册(三起)

[00:03.76]UNIT 2 Interesting Lessons [00:07.18] Lesson 6 What's an Insect? [00:11.33]Let's talk. [00:14.13] What are you doing? [00:15.44] Uh...,nothing. [00:17.93]I'm not telling you. [00:19.52]Oh, please. [00:22.04]OK. It's a ladybug. [00:23.79]It'

发表于:2018-12-13 / 阅读(48) / 评论(0) 分类 新路径小学英语五年级上册(一起)

This Scientific American 60-Second Science, I'm Cynthia Graber. Got a minute? To a farmer, good insects pollinate, and bad insects decimate. But they often had a tough time knowing which flying creatures were invading their crops. Now eavesdropping r

发表于:2019-01-20 / 阅读(23) / 评论(0) 分类 2014年Scientific American(五)月

Ten years ago, a bacteria disease began to eat away the Florida citrous crop. It's called Huang Huang Bin, or citrous greening, and it causes mishap in bitter green fruits and eventually dead trees. Since 2005, the infection is estimated to have caus

发表于:2019-01-20 / 阅读(46) / 评论(0) 分类 2015年Scientific American(十一)月

Pick the World's Ugliest Insect Arizona State University and Northern Arizona University want your vote at askabiologist.asu.edu/uglybugs to help them crown the ugliest insect in the world. Adam Hinterthuer reports Will you pick Sweetness or The Goll

发表于:2019-01-30 / 阅读(93) / 评论(0) 分类 60秒科学

在这次节目里,我们要给大家讲两个以dry这个字为主的习惯用语。Dry就是:干,也就是干和湿的干。我们首先要讲的一个习惯用语是:Dry run. Dry是干,ru

发表于:2019-01-30 / 阅读(113) / 评论(0) 分类 美国习惯用语