47. extend延伸 扩展 伸展 延伸
The farmers were forced to leave their lands when Lord Chestfield, their landlord, refused to renew their traditional lease last year in order to extend the reservation area for birds.
48. extinct灭绝的 绝种的
All the traditional banking will be coming extinct in the 21th century. Just like the dinosaur, if they cannot suit to the electronic development properly.
49. extra额外的 外加的 特别的
We should take extra time and spent extra money to build disaster safety into our lives.
50. factor因素 要素
Which according can most seriously endanger airplane according to this passage?
51. failure失败 失败的人或事 失灵 故障
What were the circumstances? Were they bad weather, a fire, or engine failure?
Apparently, there were some lower clouds in area, but mostly it was just miscommunication between the pilots and the traffic controllers