Unit One How tall are you ?Im 21 metres tall. Im tallest!Im 1.6 metres tall. Im taller than dinosaur.Its so tall!Some dinosaurs are bigger than houses. Some are smaller than our schoolbags.How heavy is it?Its five tons.What size are your shoes?My shoes are size 35.Look! Thats the tallest dinosaur in this hall.Yes, it is. How tall is it?Maybe 4 metres.Wow! Its taller than both of us together.Look！There are more dinosaurs over there!Theyre all so big and
