高考英语艺术生 强化训练课时作业40 天 临阵磨枪11Word下载.docx

1、s vast oceans would be effective barriers to the movement of land animals.An elephant cant swim across the Pacific，after all.But it turns out that plenty of plants and animals have unintentionally floated across oceans from one continent to another.Now comes evidence that tiny trapdoor spiders（活板门蛛）

2、 made such a journey millions of years ago.Moggridgea rainbowi spiders can be found on Kangaroo Island，which sits off the south coast of Australia.“These spiders build a silklined burrow（洞穴） in the ground，” noted Sophie Harrison，a biologist in Australia.The burrow and the trapdoor provide these spid

3、ers with shelter and protection.They also offer them an outofsight spot from which they can wait for approaching prey（猎物） .There is evidence，though，that the ancestors of them might have traveled millions of meters to get to Australia from Africa.That isnt as unlikely as it might at first seem.Austra

4、lia used to be connected to other continents，long ago，as part of a supercontinent called Gondwana.And humans have been known to transport species（物种） all over the planet.But theres a third option.The spiders might have rafted（乘筏） long distances across the sea.To figure out which story was most likel

5、y true，Harrison and her colleagues looked at the spiders genes.They looked at the genes in seven Moggridgea rainbowi spiders from Kangaroo Island，and five species of Moggridgea rainbowi spiders from South Africa.The Australian and African spiders split off from a common ancestor some 2 million to 16

6、 million years ago，the genes showed.If a large swatch（块） of land washes into the sea，filled with arachnids（蛛形纲动物），the spiders may be able to hide themselves throughout the journey.Plus，they can “hold their breath” and survive on stored oxygen during periods of temporary flooding，the researchers note

7、.1What is the common belief about land animals according to the text?AThey are sensitive to natural disasters.BThey are unlikely to move across oceans.CThey cant make a long ocean voyage.DThey float across oceans accidentally.2What does the underlined word “them” in Paragraph 3 refer to?AThe biologi

8、sts. BThe Australians.CThe spiders. DThe prey.3How did the researchers conclude Australian and African spiders are from a common ancestor?ABy comparing their genes.BBy observing their living habits.CBy making changes to their genes.DBy studying their physical characteristics.4What could be the best

9、title for the text?AThese Spiders Traveled Globally to Hide ThemselvesBThese Spiders Became More Adaptive When TravelingCThese Spiders Crossed an Ocean to Australia for SurvivalDThese Spiders Crossed an Ocean to Become Australian Spiders解题导语本文是一篇说明文。研究表明：澳大利亚活板门蛛是几百万年前从非洲漂洋过海迁徙到澳大利亚的。1B解析：细节理解题。本题题干

10、意为：根据本文，人们对陆地动物的普遍观点是什么？根据第一段第一句（人们会轻易地认为地球上的大洋可以有效阻隔陆地动物的迁徙）可知答案为B项（它们不可能跨越海洋）。A项（它们对自然灾害很敏感），C项（它们不能长距离航海），D项（它们偶然漂过了海洋）在文中均未提及，故排除。2C解析：代词指代题。第三段中画线词“them”指的是什么？代词them指代第二段中提到的spiders以避免重复，故答案为C项。3A解析：研究者们是如何得出澳大利亚蜘蛛和非洲蜘蛛来自同一祖先这一结论的？根据第四段可知他们是通过基因检测得出结论的，故答案为A项（通过比较它们的基因）。B项（通过观察它们的生活习性），C项（通过改变它

11、们的基因），D项（通过研究它们的身体特征）均未提及，故排除。4D解析：标题归纳题。本文的最佳标题是什么？本文主要阐述了非洲蜘蛛漂洋过海迁徙到澳大利亚这一现象，故答案为D项（这些蜘蛛漂洋过海成了澳大利亚蜘蛛）。.完形填空河南郑州第二次质量预测One autumn morning，I spotted a pair of wild geese on our pond.The beautiful sight caught me by_1_because Id never seen geese there before.Thinking they would soon leave，I_2_the cha

12、nce to get close to them.The next morning，the geese were still my_3_.I walked round to the mailbox，showing them I meant no harm._4_，I couldnt resist getting a_5_look.I hid behind some trees and_6_the handsome pair quietly through the branches.I was surprised to see they were staring at me，too!As day

13、s passed，I started _7_to them on my trips to the mailbox.They craned（伸长） their necks and raised their heads_8_，but seemed to realize I was their friend.By then，my curiosity about_9_they were staying so long at the pond changed to_10_.As they were feeding in the grass the other day，I discovered the r

14、eason for their_11_：the male had a broken left wing.He couldnt_12_，and his faithful mate wouldnt leave him behind.I asked a biologist what to do.He explained that sometimes a_13_wing will heal by itself and suggested letting nature take its course.One morning，I was working in the neighborhood of the

15、 geese with my tractor.As I bent to fasten a chain from the tractor，I_14_some movement from the corner of my eye.Both geese were running towards the pond.Their wings were_15_like crazy，struggling for takeoff.Gradually，they flew over the pond.They_16_enough altitude to fly past a neighbors house，and then circled back towards me as if to say goodbye.Then they were out of my _17_.The seasons first snowflakes fell the very next day.The birds must have_18_that winter was coming，and it was time to go.I became fond