2019-2020学年人教版高中英语选修八同步作业:UNIT 5 MEETING YOUR ANCESTORS课后限时作业14 WORD版含答案.doc
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1、高考资源网() 您身边的高考专家课后限时作业(十四)限时/40分钟.单句语法填空(建议用时:7分钟)1I wonder if Sue has lost my phone number. I _have been expecting_ (expect) her to call for the last two hours.2Now that she is out of a job, Lucy _has been considering_(consider) going back to school, but she hasnt decided yet.3The students _have be
2、en working_(work) hard on their lessons and their efforts will be rewarded success in the end.4Over the past ten years, the sea level _has been rising_(rise) as a result of global warming.5If times _has changed_(change), have our ways of thinking changed too?6In order to find the missing child, vill
3、agers _have been doing_ (do) all they can over the past five hours.7Recently I _have been occupying_(occupy) myself in writing my report on endangered animals, which is due to be handed in next Monday.8I, in common with many other middleaged men, _have met_(meet) with the embarrassment of unemployme
4、nt during the past ten years.解析句意:在过去的十年里,我和很多其他中年人一样也遭遇过失业的尴尬。meet with遭遇,短暂性动词,一般不用在完成进行时中,这里强调动作的完成,故用现在完成时。9Mother wanted to be a good provider, a role she _has been shouldering_(shoulder) since her marriage to Father.10Marty _has been working_(work) really hard on his book and he thinks hell ha
5、ve finished it by Friday.阅读理解(建议用时:7分钟)The ancient Mayan civilization collapsed due to a centurylong drought, new research suggests.Minerals taken from Belizes famous underwater cave, known as the Blue Hole, as well as lagoons(环礁湖) nearby, show that an extreme drought occurred between 800 AD. and 10
6、00 AD., right when the Mayan civilization ended. After the rains returned, the Mayans moved northbut they disappeared again a few centuries later, and that disappearance occurred at the same time as another dry period, the sediments(沉积物) reveal.Although the findings arent the first to tie a drought
7、to the end of the Mayan culture, the new results strengthen the case that dry periods were indeed the cause. Thats because the data come from several spots in a region central to the Mayan heartland, said study coauthor Andr Droxler, an Earth scientist at Rice University.From 300 AD. to 700 AD., the
8、 Mayan civilization flourished in the Yucatan peninsula (尤卡坦半岛)These ancient Mesoamericans built great pyramids, mastered astronomy, and developed both a writing system and a calendar system, which is famous for predicting that the world would end in 2012.But in the centuries after 700 AD., the civi
9、lizations building activities slowed and the culture fell into war and unrest.The evidence for a drought has been growing in recent years. A 2012 study in the journal Science analyzed a 2,000yearold stalagmite(石笋) from a cave in southern Belize and found that sharp decreases in rainfall coincided wi
10、th periods of decline in the culture. But the data came from just one cave, which meant it was difficult to make predictions for the area as a whole, Droxler said.To look for signs of drought, the team drilled the sediments in the Blue Hole of Lighthouse Lagoon, as well as one in the Rhomboid reef.
11、The lagoons surrounded on all sides by thick walls of coral reef. During storms or wetter periods, excess water runs off from rivers and streams, overtops the retaining walls, and is deposited in a thin layer at the top of the lagoon. From there, all the sediments from these streams settle to the bo
12、ttom of the lagoon, piling on top of each other and leaving a record of the historical climate.The team found that during the period between 800 AD. and 1000 AD., when the Mayan civilization collapsed, there were just one or two tropical cyclones(气旋) every two decades, as opposed to the usual five o
13、r six. After that, the Mayans moved north, building at sites such as Chichen Itza, in what is now Mexico.语篇导读本文为说明文。新研究发现:古玛雅文明的消失与长达一个世纪的干旱有关。1What happened after an extreme drought between 800 AD. and 1000 AD.?AThe Mayans were suffering a heavy flood.BThe Mayans suddenly disappeared from the earth
14、.CThe Mayans were often attacked by tropical cyclones.DThe Mayans moved to places in what is now called Mexico.解析D细节理解题。根据第二段第二句中的After the rains returned, the Mayans moved north和最后一段最后一句可知,随着干旱的发生,玛雅人迁移到如今称为墨西哥的地方,故选D项。2What is the main idea of Paragraph 4?AThe achievements of the Mayan civilizatio
15、n.BThe prediction the Mayan civilization made.CThe effects the Mayan civilization had on humans.DThe background where the Mayan civilization began.解析A主旨大意题。根据第四段第一句以及后面的例子可知,本段主要介绍玛雅文明繁荣时期所取得的成就,故选A项。3Why did the team drill the sediments in the Blue Hole of Lighthouse Lagoon?ATo learn how the Blue H
16、ole came into being.BTo know what lies on the bottom of the lagoon.CTo study the record of the historical climate.DTo see how excess water runs off from rivers and streams.解析C细节理解题。根据第七段第一句和最后一句中的leaving a record of the historical climate可知,这个团队的目的是研究历史气候的记录,故选C项。4What did Droxler think of the analy
17、sis of the 2,000yearold stalagmite?AAmazing.BRidiculous.CReasonable.DUnreliable.解析D推理判断题。根据第六段最后一句可知,这项对2 000岁的石笋所做的分析研究只是来自一个洞穴的数据,很难对整个地区做出正确的预测,unreliable不可靠的,故选D项。.七选五(建议用时:8分钟)“A picture is worth a thousand words”, or so they say. Well, motion pictures can contain even more memories. _1_ Here a
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2019届人教A版数学必修二同步课后篇巩固探究:2-1-1 平面 WORD版含解析.docx
