[名师点津]　

　　(1)dare用作实义动词时，在否定句或疑问句中，其后的不定式符号to可以省略。

　　(2)dare用作情态助动词时，其一般现在时没有词形变化，过去式为dared。

　　④How dare you ask me such a question?

　　你怎敢问我这样的问题？

　　⑤I dared not quarrel with them.

　　我不敢和他们争吵。

　　 (教材P18) Shortly afterwards, another prince，Calaf, falls in love with Turandot at first sight and decides to solve the riddles so that he can marry her.

　　不久，另一位王子卡拉夫对图兰朵一见钟情，并且决心要揭开谜底娶她为妻。

　　(1)fall in love (with sb.)相爱，坠入爱河；喜好；喜爱

　　①They fell in love with each other instantly.

　　他们俩很快彼此相爱了。

　　②I can't believe that you should fall in love with such a man.我无法想象你竟然爱上这样一个男人。

　　[明辨异同]　fall in love/be in love

fall in love "相爱"，fall为非延续性动作，不能与时间段连用 be in love "相爱"，表示状态，可与时间段连用 　　　fall in love，be in love

　　③Nancy was so attractive that Jimmy with her the first time he saw her. Now they with each other for 3 years.

　　【答案】　③fell in love；have been in love

　　(2)at first sight初次见面；乍一看

　　catch sight of 看见

　　lose sight of 看不见

　　in sight 看得见；在视线内

out of sight 看不见；在视野之外