名詞后面是todo還是todoing

1、如何判斷一個名詞后面的to是介詞還是不定式符號一、不定式（to do）作定語時，不定式和被修飾名詞之間的邏輯關系有：主謂關系動賓關系動狀關系同位關系名詞+to do主謂關系1. tom is the first man to come.2. i have a letter to be written. 動賓關系1. i have a letter to write.2. this is a comfortable chair to sit on.動狀關系(被修飾名詞在邏輯上是不定式動作的時間、地點、方式或原因狀語。)1. its time to go home. (time, year, mo

2、nth, day, hour, season, chance)2. this is not a good place to build a house.3. there is no reason to give up.4. he found a clever way to solve the problem.同位關系he had to give up his plan to build a new house.介詞to表示“針對關系、對象關系、方向關系”to doing常見的介詞(to doing sth)的短語搭配the key to (unlocking) the doorthe answ

3、er to (answering) the questionthe solution to (solving) the problemthe bridge to (gaining) the knowledgethe way to (getting) the schoolway表示“道路”(path, road)的意思時，后面的to是介詞。eg. despite the great efforts made, there is a long way to go to achieving the goal of controllng the water pollution.consolidatio

4、n1. he was the last one to go to church this morning.2. since mary refuses to do the housework at all, so her family has plenty of housework _(do) by others.3. spring is a very good season to plant trees.4. paris used to be regarded as the most romantic place to live. paris used to be regarded as the most romantic city to live in.5. this could be a stepping stones on the