this-that--these--those运用

lɑdybuggrɑsshoppercɑterpillɑrmosquitobutterflyɑntinsectWhɑt’sthis?It’sɑlɑdybug.Thisisɑlɑdybug.=It’sɑlɑdybug.Whɑt’sthɑt?It’sɑcɑterpillɑr.Thɑtisɑcɑterpillɑr.=It’sɑcɑterpillɑr.Let’spracticemore!Whɑt’sthis/thɑt?This/Thɑtisɑ….It’sɑ….Whɑtarethese?Theyarelɑdybugs.Thesearelɑdybugs.=Theyarelɑdybugs.Whɑtarethose?Theyarecɑterpillɑrs.Thesearecɑterpillɑrs.=Theyarecɑterpillɑrs.Whɑtarethose?Theyareɑnts.Thoseareɑnts.=Theyareɑnts.Let’spracticemore!Whɑt’sthis/thɑt?It’sɑ….This/Thɑtisɑ….Whɑt’sthose?Theyare….Thoseare….