Ahalf-blindandthedeafandmuteHelen,ifnotstrongchallengefatewiththecourageandconfidence,itisimpossibleforthegrowthofworldacclaimedscholars.Lifewillfaceachallengetoone,howdowefacethechallenge?Ifself-withoutfear,defianceand,ultimately,winthewar,then-willbeevenmoreperfectandmature.Inthefaceofchallenges,firstofall,toaffirmthemselves,certainlyisstrength,theirconfidenceisright;Confidencecandiscoveredhiddenintheheartofself-upourstrengthsandsuccessexperiencedit,letusconfidencetothestrengthtomeetthechalleng

　　Thethirdproblemisenvironment.everyonetalksaboutit.Theweatherishotterandhotter.Thatmeanswepollutetheenvironmentseriously.Ourcarsmaketheairdirty.Oldbatteriesmakethesoilpoisonous.Wastewatermakescleanwaterdirty.Sowedon'thavefreshair,fecundsoilandpurewater.oh,no.stoppolluting