導語：英語的句子成分是可以代替的'，下面是YJBYS小編總結的英語句子成分替代例子，歡迎參考!
主語可以用下面這些東西表示：
1. The sun rises in the east. ( 名詞 )
2. He likes dancing. ( 代詞 )
3. Two will be enough.( 數詞 )
4. Seeing is believing. ( 動名詞 )
6. To see is to believe. ( 不定式 )
7. When to hold the meeting has not been decided yet. ( 疑問詞+不定式 )
8. What he needs is a book. ( 從句 )
9. It is very clear that the elephant is round and tall like a tree. ( It作形式主語，that從句是真正的主語)
什麼情況下用it作形式主語?
當不定式、動名詞或從句在某個句子中作主語時，爲保持句子結構前後平衡，避免頭重腳輕，因此常用it作形式主語置於句首，而將真正的主語放在句尾。此時it只起先行引導作用，本身無詞義。
你能劃出下列句子的真正的主語嗎?你懂得翻譯下列句子嗎?
1) It is wrong to tell a lie. ( )
2) It is no use arguing about it. ( )
3) It is uncertain who will come. ( )
賓語可以用下面這些東西表示：
lived a happy life.( 名詞 )
2.I love you.( 代詞 )
need two.( 數詞)
you mind my opening the door?( 動名詞)
began to learn English a year ago.( 不定式 )
did not know what to say.( 疑問詞+不定式 )
you write down what she said? ( )
8. She felt it her duty to take good care of them.
(It作形式賓語，不定式是真正的賓語)
表語可以用下面這些東西表示：
1. He is a teacher. ( 名詞 )
2. My idea is this.( 代詞 )
3. She was the first to arrive.( 數詞 )
4. I feel much better today./I must be off now. ( 形容詞/副詞 )
5. He is out of danger.( 介詞短語)
6. The news was exciting./They were excited at the news.( 分詞 )
7. What surprised me most was that he spoke Chinese so well.( 從句 )
定語可以用下面這些東西表示：
1. It’s a red car.( 形容詞 )
2. They live in the room above.( 副詞 )
3. My brother is a teacher.( 代詞 )
4. We belong to the third world.( 數詞)
5. Lucy’s father is a poor worker.( 名詞所有格 )
6. Mother made a birthday cake for me.( 名詞 )
7. The man under the tree is my teacher.( 介詞短語 )
8. The swimming boy is my brother./The boy swimming in the river is my brother. ( 現在分詞 )
狀語可以用下面這些東西表示：
1. He is often late for class.( 副詞，程度 )
2. We saw that picture at the cinema.( 介詞短語，地點 )
3. He sat there smoking.( 分詞，伴隨 )
4. They returned tired and hungry. ( 形容詞，狀態 )
5. They did everything they could to save the boy’s life. ( 不定式，目的 )
6. Although he is young, he knows a lot. ( 讓步狀語從句 )
7. The box is so heavy that I can’t lift it. ( 結果狀語從句 )
狀語可以用下面這些東西表示：
9. While my wife was reading the newspaper, I was watching TV. ( 時間狀語從句)
10. He was angry because we were late.( 原因狀語從句)
11. If it rains tomorrow, we won’t go out.( 條件狀語從句)
賓語補足語：
1. I consider Jim a good friend.( 名詞)
2. I always find her happy.( 代詞 )
3. People praised him as a hero.( 介詞短語 )
4. I had the TV fixed.( 過去分詞 )
5. I saw him entering the building.( 現在分詞 )
6. What made you think so?( 省略掉to的不定式 )
7. Do you want me to go?( 不定式 )
