14 A Rare Fossil Record The preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had

发表于:2018-11-27 / 阅读(1171) / 评论(0) 分类 新概念优美背诵短文50篇

By now everyone ’ s heard of Digital Versatile Disk or DVD.Movie companies are pumping out the titles,and digital hungry comsumers have made the new format one of the fastest growing in history .Now

发表于:2018-11-28 / 阅读(127) / 评论(0) 分类 疯狂英语2001年

[00:03.10]Unit 10 Money Lesson 2 The Right Price [00:09.65]Exercise 4 Listen to Part 1 of an interview [00:14.00]with Helen Cooper and answer these questions: [00:17.98]Hello and welcome to The Shopping Programme. [00:20.94]Today we're going to talk

发表于:2018-12-04 / 阅读(152) / 评论(0) 分类 北师大版高中英语模块4

[00:03.28]Listen to This [00:08.78]I think life in the year 2030 will be great. [00:15.45]I'll be a doctor. [00:19.00]We're going to get a computer at home soon. [00:23.85]In the year 2030, [00:26.09]everyone will have computers at home. [00:30.73]My

发表于:2018-12-13 / 阅读(207) / 评论(0) 分类 清华大学版小学英语(一到六年级)

[00:05.45]记录保持者 [00:10.89]A/Talk about the people and animals. [00:16.31]A/说一下这些人和动物。 [00:21.73]Tony is tall. [00:24.70]Tony很高。 [00:27.66]He is taller than Kenny. [00:30.60]他比Kenny高 [00:33.54]Dumbo is heavy. [00:36.82]Dumbo很重 [

发表于:2018-12-13 / 阅读(65) / 评论(0) 分类 新路径小学英语六年级上册(一起)

[00:00.00]2.2 What's this? [00:07.61]Is it a record? [00:09.51]Yes,it is.It's an LP. LP? [00:14.56]Yeah.It means a long-playing record. [00:18.23]You see,there weren't any CDs in those days. [00:22.39]Were there cassettes? [00:23.85]Yes,there were. [

发表于:2018-12-29 / 阅读(115) / 评论(0) 分类 北师大版初中英语七年级下