英语翻译小弟现在还有点分,根本给不了啊.不是我吝啬分啊.恳请各位能帮我个忙啊.1.BeforeAnglo-Americanwestwardexpansion.NorthAmericahadbeenshapedbymanyothercultures.2.AftertheUnitedStatesenteredworldWar2

　　英语翻译

　　小弟现在还有点分,根本给不了啊.不是我吝啬分啊.恳请各位能帮我个忙啊.

　　1.BeforeAnglo-Americanwestwardexpansion.NorthAmericahadbeenshapedbymanyothercultures.

　　2.AftertheUnitedStatesenteredworldWar2in1941,GeneralMotors(GM)ceasedcivilianautomobileproductionandstaredmanufacturingtanks,airplanes,weapons,andotherwarsuppliesfortheAlliedforces.

　　3.Warmerairisabletoholdmorewatervaporthancoldairandsohasahigherhumidity.

　　4.Inmostcommunitiesintheunitedstates,thelocalAmerican

　　RedCrosschapterhasbeenauthorizedtotakecontrolofcertainlocalpublicbuildingsintimesofemergency.

　　5.Trafficcontrolestablishesasetofrulesandinstructionsthatdrivers,pilots,trainengineers,andshipcaptainsrelyontoavoidcollisionsandotherhazards.