高二選修7Unit2Robots-ListeningandReadingtask.ppt

Reading task,ROBOTS IN THE FIGHT AGAINST LANDMINES (Page57),【背景】,據(jù)總參謀部編印的地雷議定書宣傳教育提綱介紹，目前世界上有68個國家仍埋有65001.1億枚地雷，每年造成約2.6萬人傷亡。今年是我國加入聯(lián)合國通過的修正的地雷議定書10年，作為一個愛好和平的國家，我國多年來一直在為消除雷患作出積極的努力，并用自行研制的裝備創(chuàng)造了“速度最快、質(zhì)量最高、傷亡最小”等世界掃雷奇跡。,掃雷機器人主要用于人道主義掃雷行動中探測地雷及未爆 藥，具有視頻監(jiān)測和遠程實時傳輸功能，可實現(xiàn) 20mm未知高度變化路面的穩(wěn)定行走和快速通過，還具有 翻越200mm高度的垂直障礙物和上下樓梯、進出狹窄通道 等功能。 記者在現(xiàn)場看到，該機器人采用無線可視遙控操縱方 式，探測高度為離地10-20mm；探測最大速度為平原開闊 地100m/h；左右擺動探測范圍各60。機器人通過攝像頭 即時采集圖像信號，通過無線視頻傳輸模塊提供給遙控部分。 當(dāng)探雷器探測到有雷信息后，會自動傳輸給云臺控制器做前 端處理，并停機定位、噴灑標(biāo)識液、響報警鈴、亮警示燈 等，同時將有雷信號發(fā)送給機器人主控制器。此設(shè)備適應(yīng) 在-5C+50C，具有較好的防潮防水性能。在植被深不 超過10cm的平原、丘陵、沙漠地，坡度不大于25的地域 能夠自如作業(yè)。機器人最多連續(xù)工作16小時，控制器最大 最多連續(xù)工作16小時。,我赴黎巴嫩維和工兵營官兵使用的掃雷機器人,來自全軍的五十多名地雷專家和聯(lián)合國有關(guān)人士，近日對云南掃雷部隊兩次邊境大掃雷的情況進行認真考察論證后發(fā)現(xiàn)，以云南掃雷部隊為主摸索出的二十多種科學(xué)掃雷方法和革新出的九種掃雷新裝備，在大面積掃雷中運用后，與世界其它同類雷場相比，具有速度最快-作業(yè)官兵日均掃除雷區(qū)面積達六百多平方米，人均排除地雷等爆炸物九百多枚，掃雷工效是世界同類雷場作業(yè)的十倍；質(zhì)量最好-所掃雷障的二百多平方公里土地，移交地方時后至今未發(fā)現(xiàn)一起遺留地雷引起的人員傷亡事故；傷亡最小-參加兩次大掃雷的千余名官兵，在山高坡陡、雷種復(fù)雜、爆炸物交織混亂的亞熱帶山岳叢林地復(fù)合雷場與死神打交道千余天，創(chuàng)造了僅有一人犧牲的“世界大面積掃雷亡人最低的紀(jì)錄”，受傷人數(shù)也大大低于世界其它同類作業(yè)現(xiàn)場。,中越邊境七年大掃雷創(chuàng)造世界奇跡,中越邊境大掃雷是本世紀(jì)末世界上規(guī)模最大的一次掃雷行動。按照中國國務(wù)院、中央軍委的部署，從一九九二年開始，云南、廣西邊防掃雷部隊七年間兩次征戰(zhàn)雷場，共掃除地雷二百二十多萬枚，銷毀其它爆炸物四百多噸，完善永久性封圍雷場數(shù)十平方公里，中越邊境中方一側(cè)的雷患已基本消除。今天，人們看到，從云南的邊陲新城河口到廣西的友誼關(guān)，昔日的雷場已崛起六個國家級、十三個省級邊貿(mào)口岸和三十多個邊貿(mào)互市點；二百九十多條邊境通道的開通，徹底改變了掃雷前中越邊境沒有一條暢通的陸地通道的局面，為邊疆的經(jīng)濟發(fā)展和對外開放創(chuàng)造了有利條件。,軍用排雷機器人,軍用排雷機器人是一種裝有探雷器和使地雷失效裝置的機器人，主要用于協(xié)助攻擊分隊在各種雷場中開辟通路，并進行標(biāo)示。排雷(彈)機器人使用不僅可以加快掃雷破障的速度，而且還大大降低了人員的傷亡。如美國研制的交通警察戰(zhàn)場機器人，它安裝了多種傳感器，可用于探測建筑物、掩體、隧道等處的地雷；蜜蜂式控雷器則具有較快的飛行速度，可以迅速而準(zhǔn)確地發(fā)現(xiàn)地雷的位置，并通過自身攜帶的裝置對地雷進行引爆。,馬永信：中國士兵創(chuàng)造世界掃雷奇跡,新華網(wǎng)消息 據(jù)解放軍報報道，世界掃雷史記下了一個中國士兵的傳奇：作業(yè)200余天，排除地雷3040余枚、爆炸物1200多件，排雷進度是曾被公認為世界最成功的“阿富汗掃雷行動”的單兵排雷進度的292倍！而且排雷數(shù)量也堪稱“世界之最”！他所帶的班排雷1 4萬余枚，無一傷亡，所掃過雷的地方未發(fā)現(xiàn)雷患，創(chuàng)造了世界同類雷場“質(zhì)量最優(yōu)、傷亡為零”的奇跡。他就是云南掃雷部隊二隊班長馬永信。不久前，成都軍區(qū)召開命名大會，授予他“排雷英雄”榮譽稱號。,中越邊境大掃雷中掃除的部分地雷 資料,Three decades（十年）of war in Cambodia柬埔寨亞洲 have left scars in many forms throughout the country. Unfortunately, one of the most lasting legacies（傳代物）of the conflicts continues to claim new victims daily.,Read this piece of news about landmines.,In most cases, even the soldiers who planted the mines did not record where they were placed. Now, Cambodia has one of the highest rates of physical disability of any countries in the world.,At the current rate of progress, it may take as many as 100 years to clear all the mines in Cambodia, and the UN estimates that with current technology, it will take nearly 1,100 years to clear all the mines in the world.,This is the situation in Cambodia.,Here and there are the mine signs.,In spite of so many warning signs, there are still many victims.,Robots in the fight against landmines.,Pre-reading,What is the main topic of the article? Which part of the text tells you that? The role of robots in the fight against landmines.The title. 2. Who wrote the article? _Natasha Wesley.,4. Where is research being done on robots that can find landmines? _Chiba千葉University(Japan). 5. In which two countries might the robots be used? _Afghanistan and Cambodia.,Reading Task ( P 57 ),Robots in the Fight against Landmines,Where do you probably find the passage ? -We probably find the passage in a magazine. It is a magazine article. 2. What is the typical structure of this kind of passage ? -The structure of this kind of passage is as follows : it has a title; the first paragraph runs across the page and is in bold; the main text is in two columns.,3. Who wrote the passage ? - It was written by Natasha Wesley. 4. What is the purpose of the first paragraph ? -The first paragraph introduces the topic.,Divide the paragraphs in the two columns into three parts and tell what each part is about. Part 1- It is slow and dangerous work to remove landmines by hand. Part 2- Scientists have been working on technological solutions to the landmines problem and have invented a robot to remove landmines,Part 3- It is better for countries to stop the manufacture and use of landmines. What do the three pictures show you ? Picture 1 - It shows soldiers removing landmines by hand. Picture 2 - It shows what the robot invented to do the work look like. Picture 3 - It is a picture of some survivors who escaped being killed in the explosions of landmines.,Learn to guess the meanings of the new words. Landmines kill or badly injure around 26,000 people every year. There are about 100 million landmines buried just beneath the surface of the ground in 60 countries. - who happen to step on them - Landmines are something buried in the ground that can kill or injure people when stepped on.,Careful reading,Answer key for Exercise 2(pag58):,Introduction: the damage landmines,Most victims are innocent people,Suggested answers to Exercise3(p58),The problem of landmines,Robots can help find traditional mines,Each year 100,00 removed Each year 2,000,000 buried Difficult and dangerous to remove,Much safer in the hunt for landmines Faster at finding landmines Research at Chiba University,Robots can find plastic