2012-2013英语必修4人教版新课标unit 2精品
教案（第1课时） periods 1 warming up and reading the general idea of this period this period includes warming up,pre-reading,reading and comprehending of unit 2.it introduces something about agriculture,especially about dr yuan and his super hybrid rice.it can help the students,especially the students in cities,know something about agriculture.in fact this world faces a serious problem—starvation. so after reading the passage about dr yuan the students will know the importance of his achievement to man.of course th
