课题Astronomy---Avisittothemoon课时第16课时教案设计教学目标：1.willbeabletogettoknowaboutgravityandblackholes.2.Talkaboutgravityandblackholes.3.totrytousethefollowingexpressions:Pleasepayattentionto…/Makesurethat…./Watchoutfor…./Youneed…/Pleaselookat/listento…/Pleasecheckoutfor…./Don’tforget…./You’dbetter….教学步骤：Step1.RevisionCorrectthesentences:1).Theyshouldlikeeachotherisnatural.2).IfMaryreallyheardfromhimisreallydoubtful.3).Thatseemseasytosomepeopleseemsdifficulttoothers.4).Thereasonisbecauseyoudon’tlikeEnglish.Step2.Brainstorming1.Wehavelearnedalotaboutastronomy.Haveyougotinterestedinit?Ifyouaregoingtostudyastronomy,whatproblemwillyouface?2.Whatisgravity?3.Whofirstgottheideaofgravity?4.Howdideachofthemthinkofgravity?
