六年级上册,Unit6 There are four seasons in a year,Lesson 31,Lead-in,There are four in a year,seasons,Spring is the first season,Just read and talk,Presentation,A. In China, springtime begins around March. B. In China, springtime begins around April. A. Its very cold in spring, and it gets colder and colder. B. Its still a little cold in spring, but it gets warmer and warmer. A. The days get longer and longer in spring. B. The days get shorter and shorter in spring,Presentation,Read and judge,In China