表语是句子中用来说明主语的身份、特征、状态或感受的部分，通常位于连系动词（如be, seem, appear, become等）之后。表语和主语共同构成句子的谓语部分，表达主语“是什么”或“怎么样”。
常见的表语类型包括：
-
名词：用以描述主语的身份或本质。
- Example: She is a teacher. (她是老师。)
-
代词：代替名词作为表语，表明主语的身份或指代。
- Example: It's me. (是我。)
-
形容词：描述主语的性质或状态。
- Example: The sky is blue. (天空是蓝色的。)
-
数词：表示数量或顺序。
- Example: Two plus two is four. (二加二等于四。)
-
不定式、现在分词、过去分词：表达动作或状态，常用于构成进行时态或被动语态。
- Example: The food tastes delicious. (食物尝起来很美味。)
- Example: The book is well-written. (这本书写得很好。)
-
介词短语：提供额外信息，说明位置、时间、原因等。
- Example: The key is under the mat. (钥匙在垫子下面。)
-
副词：说明主语的方式、程度或地点等。
- Example: He is always punctual. (他总是准时的。)
-
从句：作为表语提供更复杂的信息，通常跟在连系动词后。
- Example: My dream is that we travel the world together. (我的梦想是我们一起环游世界。)
-
名词作表语
- His profession is a doctor. (他的职业是医生。)
- The biggest concern right now is safety. (目前最大的担忧是安全。)
-
代词作表语
- The winner is he. (获胜者是他。)
- It was me who broke the vase. (是我打碎了花瓶。)
-
形容词作表语
- The weather feels cold today. (今天天气感觉冷。)
- She seems happy with her new job. (她对新工作似乎很满意。)
-
数词作表语
- There are five apples in the basket. (篮子里有五个苹果。)
- The sum equals twenty. (总数等于二十。)
-
不定式作表语
- My goal is to learn Spanish fluently. (我的目标是流利地学习西班牙语。)
- Their plan is to open a bakery. (他们的计划是开一家面包店。)
-
现在分词作表语
- The movie is interesting. (这部电影很有趣。)
- She remains unaware of the problem. (她仍然不知道这个问题。)
-
过去分词作表语
- The house is well-built. (这座房子建得很好。)
- The cake was beautifully decorated. (蛋糕装饰得很漂亮。)
-
介词短语作表语
- The book lies on the table. (书躺在桌子上。)
- She is in love with him. (她爱上了他。)
-
副词作表语
- He works hard. (他工作努力。)
- They arrived late to the party. (他们晚会迟到了。)
-
从句作表语
- The reason why he quit is unclear. (他辞职的原因尚不清楚。)
- Her belief that she can succeed keeps her motivated. (她相信自己能成功，这使她保持动力。)
