74. Consumer demands are changing and are becoming more （modern， sophisticated）， which drives the need for technology to meet this market demand.
Modern： having very recent attitudes or ways of behaving
Sophisticated： having a lot of experience of life， and good judgment about socially important things such as art， fashion etc（久经世故的）
75. The dramatic depreciation of the currency caught even some economists （on， off） guard.
On guard： to be paying attention to what is happening in order to avoid danger， being tricked etc （警惕）
Off guard： to surprise someone by happening when they are not expecting something or prepared for it（不提防）
76. The two sides （differentiate， differ） greatly about the wording of the contract.
Differentiate： to recognize or express the difference between things or people
Differ： to be different from something in some way
77. The ad says the （minimum， optimum） requirements for the job are a Bachelor degree and two years‘ experience. You don’t stand a chance without working experience.
Minimum： the minimum number， degree， or amount of something is the smallest or least that is possible， allowed， or needed
Optimum： the best or most suitable for a particular purpose or in a particular situation
78. The company （excels， surpasses） in developing an intimate relationship with its customers.
Excel in： to do something very well， or much better than most people
Surpass： [transitive] to be even better or greater than someone or something else
79. Doctors （contribute， attribute） the fall in the number of death from heart disease to improvements in diet.
Contribute： Attribute： See No： 59
80. Believe it or not， the manager is also （adapt， adept） in working out crossword puzzles.
Adapt： to gradually change your behavior and attitudes in order to be successful in a new situation（与to搭配）
Adept： good at something that needs care and skill； skilful
81. There is a long history of （hostility， rivalry） between Cambridge and Oxford.
Hostility： when someone is unfriendly and full of anger towards another person
Rivalry： a situation in which two or more people， teams， or companies are competing for something， especially over a long period of time， and the feeling of competition between them； competition
82. His （greed， acquisitiveness） drove him to （keep， hoard） more food than he needed.
Greed： a set of beliefs or principles（信条）
Acquisitiveness： wanting to have and keep a lot of possessions（占有欲）
Keep： if food keeps， it stays fresh enough to be eaten（其中的一个意思）
Hoard： a collection of things that someone hides somewhere， especially so they can use them later
83. On her deathbed， she told her children that she had nothing to （repent of， regret）。
Repent of： to be sorry for something and wish you had not done it - used especially when considering your actions in a religious way（忏悔）
Regret： to feel sorry about something you have done and wish you had not done it（后悔）
84. An （immense， great） amount of money has been put into building the dam to control the river.
Immense： extremely large； enormous
Great： very large in amount or degree
85. Crop rotation has prevented the soil from （poverty， impoverishment）。
Poverty： not as good as it could be or should be
Impoverishment： to make something worse in quality
86. It is a very monotonous and （tiresome， tiring） job to be on watch the whole night.
Tiresome： making you feel annoyed or impatient（厌烦）
Tiring： making you feel that you want to sleep or rest（厌倦）
87. I （obtain， derive） great pleasure from making new friends.
Obtain： to get something that you want， especially through your own effort， skill， or work
Derive： to get something， especially an advantage or a pleasant feeling， from something
88. The （victorious， triumphant） women football team made a （victorious， triumphant） return to China.
Victorious： having won a victory， or ending in a victory（胜利的，获胜的）
Triumphant： showing pleasure and pride because of a victory or success（因胜利而欢欣鼓舞的）
89. She fell down and injured her ankle badly. Sitting there， she （grimaced， made a face） from the pain.
Grimace： to twist your face in an ugly way because you do not like something， because you are feeling pain， or because you are trying to be funny
made a face： an expression on someone's face（做鬼脸）