Ithinksummerismyfavotiteseason. 　　first,insummerwedonothavetowearalotofclothes,girlscanweartheirkindsofbeautifulskirtsandboyscanweart-shirt. 　　second,insummeryoucandoalotofsportssuchasfootball,basektball,pingpang,ofcause,swimmingismyfavoritesport. 　　atlast,therearesomanydeliciousinsummer,kindsofice-reamandfruit,barbecue,beerandsoon. 　　asaword,Ithinkyoucandotoomanythingstomakeyouselffeelrelaxandenjoyyouself,so,summerismyfavoriteseason! 　　水平有限,如果是高中作文的话,这个语法上基本OK!参考下吧