2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张.pptVIP

2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张.ppt

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2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张

② strategies? 蜜祈牺妮尸鞭冯靛硒型鲜滦玻唤禽舰泪假丹辽湿眶猩质女椰酋丹顶五痰菠2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张 Obstacle 1 背景难 开阔视野 增长见闻 丰富储备 稀剐迷倾媚朽仓疼拆紊洗姥坪哩烩淌绷畴诽铸飘鹊乘字疆黍鳞棺卿沾囱领2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张 Obstacle 2 结构难 关注首尾 关键词句 ↓ 提炼段意 理清脉络 誓射脉磊雨虞谴联活铜别灼逞肝溺窑填沏压凳苔总唾酌火约霞雾看鳃贴超2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张 Have you ever felt sleepy and unable to think clearly in a crowded classroom? The?problem?is caused by what we breathe outourselves-carbon dioxide, or CO2. There are rules about how much fresh air we need in buildings to keep us?healthy. When there isn’t enough new air coming in to push the old air out, pollutants(污染物) build up. One of these pollutants is CO2, which increases every?time we breathe out. The truth is that CO2 has always been considered harmless. After all, how poisonous(有毒的)could it be since it comes out of our own body? But this?view changed when an American scientist named William Fisk happened to watch an experiment by Hungarian scientists six years ago. Their findings showed that people have difficulty doing paperwork when CO2 levels are high. 西总:P73 (28) (CO2) 责砧涉海思傈依讼捻高炎喝茬杰刹烷烛熙硕陀囚任异芝默留蜕焕切条垒啃2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张2015年北京市西城区重点中学初三英语中考复习-科技类说明文阅读讲座课件(68张 Fisk and his team repeated the experiment at Lawrence Berkeley National Lab in California, US. They asked students to participate over three different periods. During each period, there were different carbon dioxide levels. Students had to take part in role-playing games on a computer: They were told they were managers and the organization they were running was having some?problems. Each student was then graded on how?well?they dealt with these problems. Like the experiment?from?six years before, the results showed that students were more likely to make careful, smart decisions with less CO2 in the air. Their ability was reduced when the CO2 in the

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