80. Pennsylvania has the most institutions of higher learning than any other state has.
*A is wrong. 比较级。后文有关键词than,可知此处应是比较级而非最高级,应为more. 注意最后any other使用has.
81.The operetta first ( ) as a popular form of musical theater in the nineteenth century.
A. to emerge B. emerging C. has emerged D. emerged
*D is answer. 句中缺谓语动词,而A、B都是动词的非谓语形式,不可单独作谓语,C是完成时,不能与副词first搭配,故选D。
82. Sociological studies have found that deeply hold values and principles are highly resistant to change.
* B is wrong. 修饰名词values应当用动词的过去分词,而hold是动词原形,应为held.分词的作用相当于形容词。
83. ( ) hardiness, daylilies can be cultivated particularly easily.
A. Their B. Since their C. It is their D. Because of their
*D is answer, 介词短语。逗号后是一完整的句子,逗号前常是状语,由分词短语或介词短语充当,答案中无分词,只有B、D是介词结构,since作健忘时不表示原因,而是“自从”的意思,D是正确。
84. ( ) that of iron construction, the technology for constructing buildings with reinforced concrete developed rather rapidly.
A. Dissimilar B. Different C. Not likely D. Unlike.
* D is right. 此句需要介词短语作状语,四个答案中只有D:unlike是介词。A应为dissimilar to, B应为different from, C: not likely是形容词。
85. An Olympic marathon is 26 miles and 385 yards, approximately ( ) from Marathon to Athens.
A. the distance is B. that the distance is C. is that the distance D. the distance
*D is right. Approximately the distance from Marathon to Athens为名词短语,补充说明整个句子,相当于省略了which is 的定语从句。
86. The United States Constitution requires that the President be a natural-born citizen, thirty-five years of age or be older, who has lived in the United States for a minimum of fourteen years.
*C is wrong. Or 两边成份应同性质。注意:require要求其宾语从句用动词原形。
87. Ensuring an adequate water supply have been a concern ever since people began to live in towns and cities.
* C is wrong. 主谓数的一致。主语为动名词短语时,谓语动词应为单数形式。Have 应为has. Ever since是adv,从那时起到现在。
88. 注意区别:1) the most +adj/ adv 为最高级比较级
most + n 意为“大多数”(注意前面无冠词the)
2) costly adj.昂贵的, 贵重的 E.g.: costly binding 精美装订
3) long before引导状语从句,与before意思一样,但语意更强。
89. A majority of people in the United State can get all the calcium their bodies from the food they eat.
A. require B. requires C. requiring D. to require
*A is right. 谓语/主谓数的一致,calcium后面是省略了关系代词that的定语从句,从句缺谓语动词,A、B均可,但从句主语为复数的bodies,故选复数形式的A。C、D均为动词的非谓语形式。
90. For centuries waterwheels were the only sources of power aside from human and animal strong.
*D is wrong. 词性。形容词human 与animal 修饰的应是名词,形容词strong应为strength. 注意:区别形容词strong与名词strength两个词形。注意the only后面可加单数名词,也可加复数名词。Aside from意为adv.”除...以外”.
91. 1) Dams vary in size from small rock barriers to concrete structures many feet height.
*D is wrong. 词性/习语。表示长度、重量等单位的名词后接形容词,数词+feet long/high是固定短语,不用名词height.注意:wide-width, long-length, high-height.
2) In the wild, tea plants become tress of approximately thirty feet in high.
*D is wrong. high是形容词,而介词in后应接名词,应为height.
92. The texture of soil is determined by the size of the grains or particles that make up.
* D is wrong. Make up 表示“组成”时,要带宾语,此处应为make it up.