招一、疑问代词(副词)引导的从句改为“疑问代词(副词)+不定式结构”。如:1.他不知道他应该干什么。He didn’t know what he should do.He didn’t know what to do.2.你能告诉我怎样才能到达动物园吗?Can you tell me how I can get to the zoo?Can you tell me how to get to the zoo?招二、把从句改为不定式短语。如:1.他希望他取得大的进步He hopes that he would make great progress.He hopes to make great progress. Recruit one, interrogative pronouns (adverbs) to guide the clause to “interrogative pronoun (adverb) + infinitive structure ”. He did not know what he should do He did not know what he should do. He did not know what to do.2. Can you tell me how I can get to the zoo? Can you tell me how to get To the zoo? Second, change the clause to an infinitive phrase. He hopes that he would make great progress. He hopes to make great progress.