专业英语四级语法与词汇专项及答案解析(十七)
一、Grammar and Vocabulary（本大题30小题．每题1.0分，共30.0分。There are several sentences in this section. Beneath each sentence there are four words, phrases or statements marked A, B, C and D. Choose one word, phrase or statement that best completes the sentence. Mark your answers on Answer Sheet Two. ） 第1题
In American universities, classes are often arranged in more flexible ______ and many jobs on campus are reserved for students. A. scales B. ranks C. grades D. patterns
【正确答案】：D
【本题分数】：1.0分
【答案解析】
[考点] 考查名词词义辨析。
scale意为“等级”；rank意为“级别”；grade意为“等级”；pattern意为“样式；方式”。根据句意可知D为正确答案。 第2题
By the end of next month we ______ this assignment. A. will finish B. will be finishing C. will have finished D. have finished 【正确答案】：C
【本题分数】：1.0分
【答案解析】
[考点] 考查动词时态。
by the end of next month(year)是将来完成时的典型时间状语，故选C。 第3题
跟多试卷请访问《做题室》www.zuotishi.com
______ native to North America, corn has now spread all over the world. A. In spite of B. That it is C. It was D. Although
【正确答案】：D
【本题分数】：1.0分
【答案解析】
[考点] 考查让步状语从句。
四个选项中，B和C不合理。A项的in spite of是复合介词，后应接名词。如果状语从句中的主语和主句中的主语一致，就可以省略状语从句中的主语和谓语be，从而使句子更加简洁明了。在这句话中，从句中的主语也是corn，因此其主语corn和谓语is可以省略，故D为正确答案。 第4题
Advertising media like direct mail, radio, television and newspapers ______ to increase the sales of industrial products.- A. have been used B. will be used C. is being used D. has been used 【正确答案】：A
【本题分数】：1.0分
【答案解析】
[考点] 考查动词时态。
根据句意可知需要用完成时的被动语态，句中的media是medium的复数形式，因此A为正确答案。 第5题
I am not used ______ to like that. A. to being spoken B. to speak C. being spoken
跟多试卷请访问《做题室》www.zuotishi.com