51．fix one’s eyes on凝視

　　 He fixed his eyes on the girl．

50．1eave for動(dòng)身去

　　 He is leaving for Nanjing next week．

49．1earn．．．by heart背會(huì)

　　 She has learnt it by heart．

48．1ong for渴望

　　 I'm longing for a letter from him．

47．join in參加(活動(dòng))

　　 join sb．in．加入某人做事　　 。，

　　 He joined us in watering the trees．

　　 She also joined in the dancing．

46．insist on／persist in堅(jiān)持

　 He insisted on／persisted in doing that．

45．inspire…with…以……激發(fā)

　 He inspired them with courage．

44．head for朝……去

　 The ship is heading for the nearest port．

43．recover from恢復(fù)

　 She has recovered from her illness．

42．reply to答復(fù)