6、形容词:spoken 口语的broken 坏掉的written 写作的2.I don’t know how to increase my reading speed. 【解析】“疑问词+动词不定式”作宾语【注意】what to do后不需要跟宾语how to do后必须跟宾语【拓展】“疑问词+动词不定式”结构:know,tell, wonder,ask,find out, learn+what, which,when, where,how +动词不定式(to do)1bWhatotherthingsaredifficultforyou?Makealist.1.Idon’tknowenoug