【阅读短文,根据首字母提示,填空Therehavebeenmanygreatinventionsthatchangedthewaywelive.Thef______greatinventionwasonethatisstillveryi_____today--wheel.Thismadeite______tocarryheavythingsandtotravellongdistance】

　　阅读短文,根据首字母提示,填空

　　Therehavebeenmanygreatinventionsthatchangedthewaywelive.Thef______greatinventionwasonethatisstillveryi_____

　　today--wheel.Thismadeite______tocarryheavythingsandto

　　travellongdistance.Forhundredsofyearsafterthattherewere

　　f_____inventionsthatasimportantasthewheel.Thenintheearly

　　1800'stheworldstartedtoc______.Therewasl_____unknownlandleftintheworld.Peopledidn'thavetoe______muchanymore.They

　　begantoworkinsteadtomkelifeb______.Inthesecordhalfof

　　the19thc_____manygreatinventionsweremade.Amongthemwere

　　camera,theelectriclightandtheradio.Theseallbecomeabig

　　p______ofourlifetoday.

　　谢谢`````!