第一节旅游电子商务的发展与市场定位 第二节电子商务在酒店网络预订房中的应用 第三节电子商务在旅行社业务中的应用

一、数控机床的的的工作原理和组成 数控:是指用数字信息控制机械运动

接近生命 信息传递 生命的助推火箭 内外有别 自动机器 克隆羊，克隆人 生命科学导论 病毒，病毒？ 基因工程 欲望与渴求 联合大脑 灵魂出窍

Old Father Time becomes a Terror 1. Objectives 2. Background 3. Discussion 4. Text Structure 5. Language Study 6. Content Questions 7. Essay Writing

Text A The Nightmare and The Dreams Part 1 Objectives Part 2 Background Part 3 Language Points

Text AA Friend In Need Objectives Background Discussion Structure Study Need Language Study

Text A Smart Cars Part 1 Objectives Part 2 Background Part 3 Structure Study LR Part 4 Language Points

Objectives Students will be able to: 1. understand the main idea(cloning is a two- edged sword) and structure of the text; 2. appreciate the writing strategies employed by the author, 3. master the key language points and grammatical structures in the text;

Students will be able to: 1. understand the main idea and structure of the text; 2. appreciate how the repeated use of clues helps weave a piece of narration together; 3. grasp the key language points and grammatical structure in the text

At least 90 percent of UFO sightings can be identified as conventional objects, although time-consuming investigations are often necessary for such identification. The objects most often mistaken for UFOs are bright planets and stars aircraft, birds, balloons kites aerial flares, peculiar clouds, meteors and satellites. The remaining sightings most likely can be attributed to other mistaken sightings or to inaccurate reporting hoaxes or delusions although to disprove all claims made about UFOs is impossible