单元小测(Unit 2) Ⅰ.1.political 2.freedom 3.distribution 4.frequency 5.violence 6.to hold 7.sponsored 8.diving 9.Convinced 10.entitled 11.by/with 12.to 13.in 14.at 15.of Ⅱ.1.It is said that 2.among which is Big Ben 3.Located on the eastern coast of China 4.Wherever we are 5.since I left there five years ago Ⅲ.【文章大意】 本文是一篇说明文。文章介绍了一项针对非洲灰鹦鹉的社交能力的研究。实验显示,这种鹦鹉能够互相帮助,通过赠送硬币来协助同伴获取坚果,且不仅限于亲友,还包括陌生鹦鹉。这进一步证实了动物王国中的利他行为,表明这种行为并非人类独有。 1.B 细节理解题。根据第一段中“But they wondered if these birds, separated from great apes by some 300 million years of evolution, also possess advanced social abilities, like helping one another.”可知,这项研究主要是探究非洲灰鹦鹉的社交能力。故选B项。 2.C 细节理解题。根据第二段中“Brucks and his colleague placed many paired combinations of eight African greys into glass enclosures, with a hole cut in a dividing wall that allowed the two birds to interact. The scientists then trained the parrots to trade coins to a person through another hole in exchange for nuts.”可知,研究人员通过创造一个让鹦鹉分享硬币的环境来测试鹦鹉互相帮助的能力。故选C项。 3.A 词义猜测题。根据画线词的下文“‘We can be pretty confident that the African grey parrots are considering the benefits available to their partners,’ Cronin says. She points out the research adds to growing evidence of selflessness across the animal kingdom—and reminds us it is not unique to humans.”可知,非洲灰鹦鹉会为伴侣考虑,能够提供无私的帮助。由此推知,在迁移类群体中利他的名誉很重要,可以帮助它们生存,由此它们进化出利他的行为,因此画线词应该是“利他的,无私的”之意,与selfless意思一致。故选A项。 4.C 推理判断题。通读全文,尤其由第二段中“‘Parrots had not been tested yet,’ says Brucks. ‘So it remained an open question whether or not the ability to help each other actively may have evolved (进化) within birds.’”可知,文章介绍了Brucks开展的针对非洲灰鹦鹉的社交能力的研究,主要包括研究目的、实验方法、实验结果、结果分析及研究意义,由此推测,文章最可能出自科学杂志。故选C项。 Ⅳ.【文章大意】 本文是说明文。文章主要介绍了位于中国西北部的甘肃省张掖国家地质公园里的丹霞地貌。 1.lies 考查时态和主谓一致。该句为非限制性定语从句,先行词Zhangye National Geopark指物,且为单数形式,从句中缺少谓语,由此可知,设空处在从句中作谓语动词,且陈述一般事实,应使用一般现在时,谓语动词用第三人称单数形式。故填lies。 2.covering 考查非谓语动词。设空处与空后内容组成短语在句中作后置定语,修饰名词短语 a splendid Danxia landform area, a splendid Danxia landform area与动词cover为逻辑上的主谓关系,设空处应填cover的现在分词形式。故填covering。 3.a 考查冠词。masterpiece为可数名词,此句中表达“大自然的一项杰作”,表泛指,用不定冠词修饰可数名词单数,且masterpiece是发音以辅音音素开头的单词,用不定冠词a。故填a。 4.what 考查名词性从句。“…is known as the most beautiful rainbow mountain.”为名词性从句作forming的宾语,设空处在宾语从句中作主语,指物,表示“……的事物”,应用连接代词what引导。故填what。 5.were created ... ...
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