Lesson 11 What are these教案

lesson 11 what are these?
     (3 periods)
learning aims:
  1 能听说读写单词：eleven  twelve  thirteen  fourteen  fifteen  sixteen  seventeen  eighteen  nineteen  twenty
    orange(s)  pineapple(s)  egg(s)  cow(s) bird(s)  frog(s)  these  those  they
  2 能熟练指认新学名词，进一步熟悉名词复数形式，拓展数词到20以内。
  3 熟练掌握句型：what are these?
                  what are those?
                  they’re frogs.
                  are those eggs and oranges?
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