77. B)项正确，注意句末关键词hungry，所以用feed“提供食物”。 
78. C)参看逗号前a hunger advocate“主张存在饥饿现象者”，后面应该是对饥饿现象的研究，选C。
79. A)本处的意思为“国内饥饿现象这一问题”，应选issue，A项正确。
80. D)economic boom“经济繁荣”，形容词作定语。 

Part ⅤWriting

写作提示：本文要求写一封贷款信。理由要充分，对学生来说，由于家庭困难而无法支付学费是不错的话题。在行文时需注意句子结构的变化，简单句、并列句和复杂句尽可能交叉使用。在涉及词语的使用时，注意有意识的变化，比如“主修”可以表述为“major in”或“specialize in”；“学费”可以用expenses、tuition、fees等等；“经济困难”使用“financial burden/pressure/difficulties”。
Sample：
A Letter Applying for a Bank Loan
Mar. 1
Dear Sir/Madame, 

I am a sophomore in Shanghai University, majoring in computer software. In the previous one and a half years I have been a model student and monitor of my class. 

However, since I registered here, the expenses have become a burden for my average family. You know, my parents are both laid－off workers, and, to make matters worse, my mother has suddenly fallen ill and is expecting a major operation. It will be beyond their ability to finance me through my remaining education. It is now a must for me to help relieve their financial pressure. So I’m applying to your bank for a loan of 10,000 yuan. If my application is approved, all the money will go to my tuition and fees for the coming academic years. 

I’ve made a detailed plan to arrange my school life. A part-time job as a family tutor will not be difficult to find and some work-study programs for students like me are also provided in our university. From these sources I will be able to earn more than enough to support myself. I guarantee that I will repay the loan within five years, that is, within two years after my graduation. Please have confidence in me: I have a very good credit record. 

I would be greatly obliged if my application is granted. Many thanks. 

Yours sincerely, 

Liuliu