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今日目标:动词的限定形式和非限定形式(掌握5个小知识点即可)
1.动词的限定形式:动词在作谓语时受主语的制约,要保持人称和数上的一致。
I know that. She knows it. / Lily is a doctor and her classmates are doctors.
2. 时态tense: 过去时、将来时,现在进行时;组合起来一共有16个时态。
3. 语态voice:分为主动和被动语态两种。 Everybody respects Jack. Jack is respected by everybody.
4. 语气 :按说话的意图不同,动词使用不同的形式,称为语气mood。主要有四种语气:陈述、疑问、祈使、虚拟语气。
如祈使句:Be careful.
5. 动词的非限定形式 :不定式、动名词、分词
I have a question to ask you.
She loves swimming.
分词又分现在分词和过去分词:
The theory is quite convincing.
They were delighted with the result.

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