EvoClass-ENG002

第 4 课 Lesson 4

情态动词 Modal Verbs

💡 意图表达 Expressing Intention

识别并使用情态动词（如：Must 义务, Should 建议）。 Identify and use modal verbs (e.g., Must for obligation, Should for advice).

👑 主宰规则 The Dominant Rule

情态动词后的主动词必须是动词原形。 Main verb must always be in the base form after a modal verb.

⚙️ 肯定与否定 Formulating Sentences

构建肯定和否定句 (Cannot, Mustn't)。 Formulate positive and negative modal sentences.

⚖️ 灵活对比 Tense Flexibility

对比 'Can's' 与其替代形式 'Be able to'。 Compare 'Can's' with its equivalent 'Be able to'.

Powered by EvoClass AI Engine