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

第一节 污水生物处理的基本原理 第二节 有机污染物好氧生物处理的基本原理及其主要微生物 第三节 有机污染物厌氧生物处理的基本原理及其主要微生物 第四节 无机污染物生物处理的基本原理及其主要微生物

第一节 微生物对污染物的分解与转化作用 第二节 有机物的生物分解性 第三节 不含氮有机物质的生物分解 第四节 含氮有机物的生物分解 第五节 微生物对无机元素的转化作用 第六节 生物对污染物的浓缩与吸附作用

Students will be able to 1. understand the main idea and the structure of the text. 2 earn to memorize words in association 3. grasp the key language points and grammatical structures in the text 4. conduct a series of reading, listening speaking and writing activities related to the theme of the unit

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

violent crimes robbery, aggravated assault hijack forcible rape, murder, bombing kidnapping, shooting a Property crimes arson, burglary, larceny-theft, fraud, motor/ vehicle theft Neighborhood Watch in Britain, there is an arrangement by which people who live in a particular

And so even though we face the difficulties of today and tomorrow, I still hay a dream. It is a dream deeply rooted in American dream. I have dream that one day this nation will rise up and live out the true meaning of

1. grasp the main idea( tolerance for solitude and energy made it possible for the writer s family to enjoy their pleasant but sometimes harsh country life.) 2. appreciate the various techniques employed by the writer comparison and contrast, topic sentences followed by detail sentences

grasp the main idea(we should adopt a sensible environmentalism) and the structure of the text(each part containing a contrast) 2)appreciate the various argumentative skills employed in the text 3master the key language points and grammatical structures in the text

一、古菌的特点与分类 二、常见的古菌 • 产甲烷菌 • 硫酸盐还原菌 • 极端嗜盐菌 • 极端嗜热菌 • 嗜热嗜酸菌