Lesson 20 How Far Is Beijing?

lesson 20 how far is beijing? 
课时：1
leaning aims: a. 认识100到10000的数字
                       b.掌握句型 :----“how far is it from … to…”
                                   ---- “it is about… kilometres.”
 情感态度价值观目标目标：理解本课课文的大意两人之间能熟练运用句式

         leaning important: let the students know well some phrases and sentrences.
      leaning difficult: remember and use the phrases well.
leaning method:  情景教学法
teaching steps:
     &nbs