回答如下:
動詞不定式具有名詞、形容詞、副詞特徵，故其可在句中充當主語、表語、賓語、定語、狀語和賓語補足語。
1 主語
To be a pilot is my dream.
=It is my dream to be a pilot.
動詞不定式作主語時，為了避免句子結構失去平衡，顯得頭重腳輕，常用it作形式主語，把真正做主語的動詞不定式放在句未。
2 表語
The problem is how to get to the station.
3 賓語
He wants to visit his grandparents next week.
4 定語
I have a lot of housework to do.
I have something important to tell you.
5 狀語
He went to Beijing to visit his friend.
6賓語補足語
He asked me to give him a pen.
Let me help you.
The boss made him work for 12 hours a day in the old days.
回答如下:
動詞不定式具有名詞、形容詞、副詞特徵，故其可在句中充當主語、表語、賓語、定語、狀語和賓語補足語。
1 主語
To be a pilot is my dream.
=It is my dream to be a pilot.
動詞不定式作主語時，為了避免句子結構失去平衡，顯得頭重腳輕，常用it作形式主語，把真正做主語的動詞不定式放在句未。
2 表語
The problem is how to get to the station.
3 賓語
He wants to visit his grandparents next week.
4 定語
I have a lot of housework to do.
I have something important to tell you.
5 狀語
He went to Beijing to visit his friend.
6賓語補足語
He asked me to give him a pen.
Let me help you.
The boss made him work for 12 hours a day in the old days.