6. They had a far better yield than any other farm miles around this year.
A) goods B) soil
C) climate D) harvest
答案及解析: D。在该句中yield 是用作名词(因为该词的前面有不定冠词a)，解题思路：抓住句子中与划线部分相关的结构或用词特点。能与不定冠词a搭配使用的被选项只有C和D(气候，倾向， 风气，如：a mild climate温和的气候)。再借助句子中其他特征词：farm，判断harvest“收成”是答案。
Yield: vt, vi出产, (常与to连用)放弃;投降;让步 n. 产量;收成
e.g. That tree yields fruits. 这种树结果。
e.g. The army yielded when it was attacked.
当这支军队受到进攻时投降了
7. If a country wants to develop its economy successfully, there has to be a clear appraisal of its social needs.
A)aptitude B) assurance C) insurance D)assessment
答案及解析: D. 解题思路：搭配结构。
Appraisal n. 评价, 估价
Aptitude: n. 能力;才能;天资
assurance n 自信;把握 (= self-assurance) , 保险
e.g. life assurance 人寿保险
Assessment n.评估,看法
e.g. What is your assessment of the situation?
你对时局的看法如何
8. To a first-year student, the doctoral degree is a distant expectation.
A. aspect B. respect C. prospect D. spectacle
答案及解析:C.解题思路：句意。
Aspect n 模样;面貌， 方面
e.g. only one aspect of the problem
只是问题的一个方面
prospect n希望;期望
e.g. Theres not much prospect of Mr Smiths being elected as Congressman.
史密斯先生被选为议员的希望不大。
Spectacle n.观览物, 展览物, 奇观, 景象
9.During the past ten years there have been dramatic changes in the international situation.
A) p ermanent B) powerful
C) striking D) practical
答案及解析: C. 解题思路：根据画线词的家族词(drama)的本义和与画线词搭配的结构的含义(变化)，判断C是答案。
Striking: adj. 引人注意的;显著的
Dramatic: adj. 戏剧的;有关戏剧的; 引人注目的
责任编辑：虫虫
