② 判斷使用的壹個關鍵: 設想into回答的是where(目的)的問句; 而in to則是否能替代為in order to。 比如:
I am afraid to go into that place. ---> Where? into that place. 不能是in to;
He came in to get his money. ---> He came in, in order to get his money. 不是into.
③ into還有“變成”,“接觸”甚至“感興趣”的意思; 對應的可替換的詞是“result of change”和“against”以及“interested”
He changed into a monster. -- result of change
He drove into a tree. -- against
He is really into this book. -- interested