学习目标：
1.学会正确使用“特殊疑问词+动词不定式”的结构。
2.学会正确使用must和have to.
【预习检测】一．同意句转换。
(1) Gulliver did not know where he could find other people.
Gulliver did not kno w _______________ other people.
(2)Gulliver wonder ed who he could ask for help.
Gulliver wondered _____________________ help.
