大量泄漏：构筑围堤或挖坑收容用泡沫覆盖，降低蒸气灾害用防爆泵转移至槽车或专用收集器内，回收或运至废物处理场所处置四、乙醚的使用注意事项 1、危险性概述 该品的主要作用为全身麻醉急性大量接触，早期出现兴奋，继而嗜睡、呕吐、面色苍白、脉缓、体温下降和呼吸不规则，而有生命危险急性接触后的暂时后作用有头痛、易激动或抑郁、流涎、呕吐、食欲下降和多汗等液体或高浓度蒸气对眼有刺激性慢性影响：长期低浓度吸入，有头痛、头晕、疲倦、嗜睡、蛋白尿、红细胞增多症长期皮肤接触，可发生皮肤干燥、皲裂2、毒理学资料 急性毒性：LD50：1215 mg/kg(大鼠经口)LC50：221190mg/m3，2小时(大鼠吸入) 刺激性：家兔经眼100mg，中度刺激

“Don’t use just the textbookAnything in real life that connect and appropriate to the lesson can be used as teaching resources”(David Nunan)；提倡任务型语言教学，教学进度整体把握，教学形式不拘一格；课堂以学生为主体，以任务为主线，重视体验参与，课后访谈调查，读写扎记，重视语言运用；正视个体差异，倡导过程激励，以多层次、多角度、多主体的结果与过程并重的评价方式激励进步The key points of each unit:Topic Functions StructuresU 1 Making new friends Introduce yourselfGreet peopleAsk for and give telephone numbers Present tense to beWhat questionsProssessive adjectives:my,your,his,herU2 Things in the classroomIdentify ownerships Demonstratives:this,thatWhat questions and Yes/No questionsHow do you spell pen

4You borrowed a bike from your friend, but you had it stolenYou willAbuy a new one which is the same as his / hersBjust tell him / her you had it stolenCsay sorry to him/her and buy him/her an old oneAfter they finish choosing the answers, show the scoring sheet on the screenInstructions:2-5 A fair-weather friendOnly like them when they are happy and popular

_是一个正在发展中的城市，是一块正在蓬勃兴起的投资热土，这里有优美地自然环境、良好地投资环境、淳朴地人文环境、宽松地政策环境在此，我衷心希看国内外更多有识之士能够选择_、投资_，通过双方真诚友好地合作，努力实现“双赢”，共同把_的家乡建设的更加美好产业新区的建设需要方方面面的关心和配合，希看市直相关部分要一如既往地给予大力支持和帮助，打破常规、特事特办，把产业新区的建设作为一件大事，共同促进产业新区的加快发展_区委、区政府要把产业新区建设作为抓好经济工作的“重头戏”和“主战潮，举全区之力，强力推进，争取尽快使产业新区形成规模，办出特色，使其真正成为_经济发展的一个新亮点，为全市的“三个文明”建设再立新功