Q19.What does the passage say we don't know much about?

　　【答案】The nature of relationships between dogs

　　【解析】本题考查篇章开头的重要信息。原文中but were rather ignorant about the nature of the relationships that form between dogs. but转折词后一般为考查重点，但是我们对狗之间关系的本质却一无所知，听清楚nature 和relationship关键词即可选出正确答案。

　　Q20.What does Dr. Mark Beckhoff say about dogs?

　　【答案】They can fall in love just like humans

　　【解析】本题考查引言这一重要细节，原文中首先说The doctors response to the question of whether or not dogs can fall in love like humans do was a straight “Of course!” 如果问狗是否会有爱情答案是肯定的，之后又再次总结了观点Then, of course, dogs love each other. 狗是爱着对方的。反复说明的信息即为考查重点。

　　Q21.What does the speaker say about most dogs?

　　【答案】They stay with one partner for life.

　　【解析】本题考查篇章结尾重点信息。原文说in fact, evidence shows almost dogs stay with one partner their whole lives证据表明大部分狗一生中只有一个配偶，听清楚关键词one partner即可选出正确答案。

　　Passage 3

　　A piece of history has been found thanks to a boy tripping on a rare, 1.2-million-year-old animal fossil. In November 2016, Jude Sparks, now 10, was on an outing with his family near their New Mexico home, when he tripped over what he thought was a cow bone. Now, researchers at New Mexico State University preserving this discovery, which was identified as an ancient elephant-like animal. Kyle Sparks, father of Jude, said he let his son decide what to do with the fossil.

　　So Jude reached out to Peter Houde, a professor at new Mexico State University who had experience with the same type of fossil in the past. The next day Houde came out to see the fossil for himself. Houde told ABC News that he was quite excited about the find. It was fortunate that the family didn't try to dig up the fossil because that could destroy the specimen; they did the right thing by calling someone who would know what to do. "It's great for the community, because now everybody can appreciate it," he added.

　　Houde and his fellow faculty members dug up the fossil in late May. They hope to return to the site with geologists for an additional search as there could before fossils near the site. Jude and his family had been invited by the researchers to see the fossil being preserved at the university.

　　Q22. What did the boy Jude Sparks think he had discovered?

　　【答案】A cow bone

　　【解析】本题考查文章开头重要细节，原文中说when he tripped over what he thought was a cow bone，当他被他以为是牛骨头的东西绊倒的时候，听清楚关键词cow bone即可选出正确选项。

　　Q23.What are the researchers at New Mexico State University doing with the boy's discovery?

　　【答案】Preserving it

　　【解析】本题考查具体的动作细节，原文中话题转折处说Now, researchers at New Mexico State University preserving this discovery,点名了调查员们的具体任务是preserve即保护这个发现。听清楚preserve即可选出正确选项。

　　Q24.What did professor Peter Houde say when interviewed by ABC News?

　　【答案】The boy’s family had acted correctly

　　【解析】本题考查引言这一重要细节。一般听力篇章中出现引言为考查重点，原文中说Houde told ABC News that he was quite excited about the find. It was fortunate that the family didn't try to dig up the fossil because that could destroy the specimen，他对这一发现非常兴奋，幸运的是这家人没有试图挖出化石因为那样会破坏标本。总结后可得出男孩的家人们行为很正确。

　　Q25.What do the researchers plan to do?

　　【答案】Conduct a more detailed search

　　【解析】本文考查结尾处重要细节。原文中说They hope to return to the site with geologists for an additional search as there could before fossils near the site.他们希望和地质学家一起回到现场，像以前在现场附近发现化石那样，进行进一步的搜寻。additional和detailed进行替换，听清楚关键词后即可选出正确答案。

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