生物多樣性英文

shipsofdesert

--exposition

本文檔共25頁；當(dāng)前第1頁；編輯于星期二\3點(diǎn)15分expositionExpositionisexplanatorywriting.ItspurposeistoexplainorclarifyapointPatternsofexposition:exemplification;processanalysis;causeeffectanalysis;comparisonandcontrast;classification;analogy;definition.

本文檔共25頁；當(dāng)前第2頁；編輯于星期二\3點(diǎn)15分OrganizationPart1(para.1-8):thelistoftheimagesofenvironmentaldestruction:thedryingupoftheAral;deforestation;airpollutionPart2(para.9-16):analysisoftheglobalthreatsposedbytheenvironmentaldestructionandthecommoncause---thechangeintherelationshipbetweenhumancivilizationandtheearth’snaturalbalancePart3(para.17-26):thesolutiontoenvironmentaldestructions---reinventingandhealingtherelationshipbetweencivilizationandtheearth本文檔共25頁；當(dāng)前第3頁；編輯于星期二\3點(diǎn)15分Lossofbiodiversity本文檔共25頁；當(dāng)前第4頁；編輯于星期二\3點(diǎn)15分Biodiversity（生物多樣性）Definition：Biologicaldiversity(biodiversity)referstoarangeofdiverselivingorganisms(animals,plants,micro-organisms)onaregularbasisconstitutedbythecombinationofstableecologicalcomplexes.本文檔共25頁；當(dāng)前第5頁；編輯于星期二\3點(diǎn)15分Valueofbiodiversityanditssignificance：Directvalue：（1）biodiversityprovidesfood,fiber,buildingmaterialsandfurniture,andotherindustrialrawmaterialsforhumanbeings.本文檔共25頁；當(dāng)前第6頁；編輯于星期二\3點(diǎn)15分（2）Biodiversityalsohaveaestheticvalue（美學(xué)價(jià)值）,wecancultivateoursentimentsandbeautifypeople’slives.Inaddition,biodiversitycanalsostimulateinspirationforliteraryandartisticcreation.wintersweet

本文檔共25頁；當(dāng)前第7頁；編輯于星期二\3點(diǎn)15分chrysanthemum本文檔共25頁；當(dāng)前第8頁；編輯于星期二\3點(diǎn)15分bamboo本文檔共25頁；當(dāng)前第9頁；編輯于星期二\3點(diǎn)15分（3）Biodiversityhasanimportantecologicalfunction.Nomatterwhatkindofecosystem,wildlifeisoneoftheessentialcomponents.Wildlifeoncereduced,theecosystemstabilitywouldbedestroyed,thesurvivalenvironmentofmankindwouldalsobeaffected.本文檔共25頁；當(dāng)前第10頁；編輯于星期二\3點(diǎn)15分thepotentialvalue:

asfarasthemedicinalproperties,80%ofthepopulationsindevelopingcountriesrelyonplantsoranimals,toensurethebasichealth.本文檔共25頁；當(dāng)前第11頁；編輯于星期二\3點(diǎn)15分本文檔共25頁；當(dāng)前第12頁；編輯于星期二\3點(diǎn)15分本文檔共25頁；當(dāng)前第13頁；編輯于星期二\3點(diǎn)15分Causesofbiodiversityreduction:1、Therapidincreaseinpopulation.本文檔共25頁；當(dāng)前第14頁；編輯于星期二\3點(diǎn)15分Thepopulationkeepsincreasing,soarablelandmustbeexpandedtomeetdemandsofeating,thisbecomesthedirectthreattothenaturaleco-systems.本文檔共25頁；當(dāng)前第15頁；編輯于星期二\3點(diǎn)15分2、Overexploitation

本文檔共25頁；當(dāng)前第16頁；編輯于星期二\3點(diǎn)15分Environmentalpollution

本文檔共25頁；當(dāng)前第17頁；編輯于星期二\3點(diǎn)15分killing本文檔共25頁；當(dāng)前第18頁；編輯于星期二\3點(diǎn)15分本文檔共25頁；當(dāng)前第19頁；編輯于星期二\3點(diǎn)15分No!!!本文檔共25頁；當(dāng)前第20頁；編輯于星期二\3點(diǎn)15分Aretheseproblemsdifficulttobesolved?本文檔共25頁；當(dāng)前第21頁；編輯于星期二\3點(diǎn)15分Aslongas