1第9课时八年级(上)Units7~8一、阅读理解A“Iwillthinkofit.”Itiseasytosaythis,butdoyouknowwhatgreatthingshavecomefromthinking?SirIsaacNewtonwassittinginhisgardenwhenhesawanapplefallfromatree.Hebegantothinkandtriedtofindoutwhytheapplefell.Thenhediscoveredhowthesun,moon,andstarsarekeptintheirplaces.AboynamedJamesWattsatquietlybythefire,watchingthelidofthekettlemoveupanddown.Hewantedtofindoutwhythesteaminthekettlemovedthelid.Fromthattimehewentonthinkingandthinking.Andwhenhebecameaman,heimprovedthesteamengine(蒸汽机)somuchthatitcouldeasilydotheworkofmanyhorses.JamesFergusonwasapoorboy.Once,seeingtheinsideofawatch,hewondered.“WhyshouldInotmakeawatch?”Buthowcou...
