①It took an hour to find the solution to the problem.

　　解决这个问题花了一个小时。

　　②With the help of his friends，he finally solved (solution)the problem.

　　在朋友们的帮助下，他终于解决了问题。

　　[名师点津]　

　　名词与介词to构成的短语

　　the answer/reply to... ......的回应

　　the entrance to... ......的入口

　　the door to... ......的门

　　the attitude to... 对......的态度

　　the damage to... 对......的破坏

　　the approach to... ......的途径/方法

　　the key to... ......的钥匙/答案

　　the access to... ......的通道/机会

　　 mood n．心境；情绪

　　(教材P18)Motorists could take a bus into the city centre and arrive at work or the shops relaxed and in a good mood.

　　驾车者可以轻松地乘公交车进入市中心，心情愉快地工作或购物。

　　(1)in a good/bad mood 心情好/坏

　　be/feel in the mood for sth./to do sth.

　　 有做某事的心情

　　in no mood to do sth./for sth. 没心情做某事

　　(2)moody adj. 喜怒无常的；忧郁的

　　①He's in a bad mood right now.We'd better leave him alone.

他现在情绪很不好。我们最好不要打搅他。