【Thepressingissueofglobalwarminghasmadeitnecessaryforustolookatotherrenewablesourcesofenergy.Windenergyisarenewablesourceofenergyanddoesn’tproducetoxicby-products(有毒的副产品)asisthecasewithfossilfue】

　　Thepressingissueofglobalwarminghasmadeitnecessaryforustolookatotherrenewablesourcesofenergy.Windenergyisarenewablesourceofenergyanddoesn’tproducetoxicby-products(有毒的副产品)asisthecasewithfossilfuels.Howeveritstillhasbadside.

　　Thebiggestissueconcerningwindenergyisitsunreliability.Therecanbeperiodswhenadequateelectricityisproducedonaccountofstrongwindandtherecanalsobeperiodsoflull(间歇)wherenoelectricitycanbeproducedfordaysbecauseoftheabsenceofwind.

　　Asdiscussedbeforeduetothelullnatureofwindenergyitneedstobestoredorusedasasubstitutefortheconventionalsourcesofenergy.Howeverstoringitisquiteexpensiveandcountrieshavetorelyonfossil-fuelfactoriestomeettheirenergyneeds.

　　Theclaimthatthisenergywillleadtocreationofmorejobsisn’tacceptedbymostpeople.Theypointouttothefactthatawindpowerfactoryneedslotsofworkersonlyduringitsconstructionandonceitisbuiltitneedsonlyafewmaintenanceworkers(维修工).

　　Therehavebeenreportsinthepastaboutthedangerthatwindmills(风车)posetobirds.Duetotheheightofthewindmillsbirdsareoftenonacollisioncoursewiththemandalargenumberofdeathshaveoccurredduetothisreason.

　　Installation(安装)ofwindmillshasfacedviolentoppositionfrompeoplelivinginnearbyareaswherethewindpowerfactorieshavebeensuggested.Oneofthemainreasonsfortheiroppositionisthatwindmillsdocausesomelevelofnoisepollution.

　　Windenergycertainlyisoneofthebrighthopesforourfuture.Althoughwindenergyhascertainlimitationsthereisnoreasonwhyweshouldgiveuponthisrenewableandcleansourceofenergyandstoptheeffortsfrommakingittoitsfullpotential.

　　Title

　　Windenergy

　　Introduction

　　Windisakindofenergywhichis71________________andclean

　　72_______

　　Itisnot73__________.

　　Sometimeswindis74__________whenhumansneedit.

　　Itisexpensivetostoreit.

　　Humanhavetospend75________instoringwindenergy.

　　Thusmanycountriesstilldependonfossil-fuelfactories.

　　Itcan’toffer76_________