Unit 1 Draw a cat on the roof.Teaching content:Part BTeaching aims:1.Tell the children don't draw everywhere.2.Can listen and say the new words of Part B:a roof ,a chimney, above the tree, in front of the car.3.Review in on under .Teaching emphasis and difficulties:on , in, under , a roof , a chimney ,above the tree, in front of the car.a chimney ,above ,in front of . Teaching aids :Pictures , cards, recorder, tape .Teaching methods:Direct Method.Audio-lingual Method.Games.Teaching pr..