2.Let'sLiveALowCarbonLife。

　　Asisknowntousall,ourenvironmentisgettingworseandworse.TherehasbeenanincreaseintheamountofCO2intheatmosphere，which，inturn，causesglobalwarmingandgreenhouseeffects.AndtheCO2areletoutbypowergenerationusingcoaloroil,numbersofgasolineengines-cars，trucks，etcandthegrowthofindustrialproduction.Inordertoprotectourenvironment,weshouldlivealow-carbonlife.

　　Firstofall,whenwegoout,weshouldtakeabusorrideabikeinsteadofdrivingacar.Carsnotonlyletoutcarbondioxidebutalsowasteenergy.Second,wehadbestnotuseplasticbagswhichcanbringaboutthewhitepollution.Weshouldusetheenvironmentallyfriendlybags.Third,it'sofgreatusetoplanttrees.Treescanabsorbcarbondioxideandreleaseoxygen.Finally,weshouldstartwithsmallthings,Therefore,asstudents,weoughttoturnoutthelightsthemomentweleave,turnoffthetapintime,andreuseourtextbooksandsoon.

　　3.HowtoPrepareforAnImportantExam?

　　Asstudents,wehavenumbersofexamsduringourschoollife,suchasanentranceexam,amid-termexamandfinalexmas.Someofthemarenotsoimportantbutsomeareofgreatimportancetosomeextent.Soeveryonehopetopassthem.Buthowcanwe?Agoodpreparationisneeded.

　　Firstofall,weshouldgooveralltheknowledgepoints.Takeoutourbooksandlookthroughthemandhavemorepractice.Afterthat,trytofindouttheimportantanddifficultpoints,onwhichweshouldplacemoreemphasis.Second,keepdoingsportswhilelearning.Theharderyoustudy,themoresportsweshouldtake.Maintainingenergeticisesseatialforanimportantexam.

　　InJune2011,19th

　　DearJohnbrown

　　Thankyoufortheorderofthelatestproducts.Iisthesalesdepartmentmanagement.Theorderedproductshavebeenissued.Itwilltakeapproximately1week,andthelatestproducts

　　willbedelivered.Ifyoureceive,pleasereplytoourcompany.Ihopewecancontinueourcooperationwitheachother.

　　YouwangM