Lesson 19: May I Invite Danny and Jenny?

lesson 19: may i invite danny and jenny? 
 课时：2
       leaning aims:1.go in learning “may i …?”
                    2.let the students know well some phrases and sentrences.
 情感态度价值观目标：理解本课课文的大意两人之间能熟练运用句式
leaning important: phrases: a.invite sb. “邀请某人”
                           b.leave for “前往，出发去”
                           c.arrive in “到达”           阅读全文