In 'Without proper guidance, students might misunderstand complex concepts,' what is the function of the introductory phrase?
答案解析
Core concept: Adverbial phrases.
Analysis:
1. The prepositional phrase 'Without...guidance' modifies the entire clause by showing circumstance
2. Key identifier: Answers 'Under what condition?' (adverbial function)
3. Error options:
A. Complements describe subjects/objects
B. Conditional clauses use 'if' structure
D. Objects receive verb action
正确答案：C