53. With a speech _________(发表,宣布,讲) the white-haired professor waved to the audience and left the h

46. A number of people have admitted that __________(尽管) their success, they aren’t happy.(根据汉语提示单词拼写)
答案】despite
解析
【详解】考查介词。句意:许多人承认,尽管他们取得了成功,但他们并不快乐。根据汉语提示“尽管”和空后的“their success”可知,应填介词despite。故填despite。
47. Leaves are found on __________ (种类;变化) of trees, but they are different greatly in size and shape. (根据汉语提示单词拼写)
答案】varieties
解析
【详解】考查名词。句意:在各种各样的树上都能找到叶子,但它们的大小和形状差别很大。a variety of /varieties of 各种各样的。根据汉语提示及句意,故填varieties。
48. The national park has a large collection of wildlife, __________(包括,在……范围内变化) from butterflies to elephants. (根据汉语提示单词拼写)
答案】ranging
解析
【详解】考查非谓语动词。句意:这个国家公园有大量的野生动物,从蝴蝶到大象。根据汉语提示“包括,在……范围内变化”,可知应填动词range,分析句子结构可知range在句中应用非谓语动词形式,与逻辑主语collection 构成主动关系,故应用现在分词作状语。故填ranging。
49. Recent studies show that we are far more productive at work if we take short breaks _______(定期,经常). (根据汉语提示单词拼写)
答案】regularly
解析
【详解】考查副词。句意:最近的研究表明,如果我们有规律地短暂休息一下,我们的工作效率会高得多。根据汉语提示“定期,经常”可知,应填副词regularly修饰动词短语take short breaks。故填regularly。
50. It is the first time that they _________ (解决,结束,和解) the dispute in a peaceful way. (根据汉语提示单词拼写)
答案】have settled
解析
【详解】考查动词时态。句意:这是他们第一次以和平方式解决争端。分析句子并根据句意和汉语提示“解决,结束,和解”,可知应填动词settle,作从句的谓语,且此处为句型“it is the first time that+现在完成时”,表示“第一次……”,从句主语为they,助动词用have。故填have settled。
51. Born in a traditional family, the twins were brought up to value __________(责任感) and sharing. (根据汉语提示单词拼写)
答案】responsibility
解析
【详解】考查名词。句意:这对双胞胎出生在一个传统的家庭,从小就被教育要重视责任和分享。根据汉语提示“责任感”和value,可知,需填名词responsibility,作宾语,此处表抽象概念,是不可数名词。故填responsibility。
52. She had big problems __________ (维持,保持) her performance. (根据汉语提示单词拼写)
答案】maintaining
解析
【详解】考查非谓语动词。句意:她在维持她的表现上有很大的问题。have problems( in) doing都表示“在……方面有问题”。根据汉语提示及句意,故填maintaining。
53. With a speech _________(发表,宣布,讲) the white-haired professor waved to the audience and left the hall. (根据汉语提示单词拼写)
答案】delivered
解析
【详解】考查非谓语动词。句意:演讲结束后,这位满头白发的教授向听众挥手离开了大厅。根据汉语提示“发表,宣布,讲”可知应填动词deliver,此处为with的复合结构“with+宾语+宾补”,speech与deliver构成被动关系,应用过去分词。故填delivered。
54. Most of the students are in favor of the proposal while some teachers are _________(反对) to it. (根据汉语提示单词拼写)
答案】opposed
解析
【详解】考查形容词。句意:大多数学生赞成这项提议,而有些教师反对。根据汉语提示及句意可知,此处是形容词opposed,be opposed to“反对”。故填opposed。
55. So far, some _________ (先进的;高级的) teaching equipment, together with five hundred new books, has been sent to the school in the mountainous area. (根据汉语提示单词拼写)
答案】advanced
解析
【详解】考查形容词。句意:到目前为止,一些先进的教学设备和500本新书已被送到山区的这所学校。根据汉语提示“先进的;高级的”,可知应填形容词advanced,作定语修饰后文teaching equipment。故填advanced。
 
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