是sophia童鞋吧,谢谢放狗,下次一定能考好的!!麻烦再看一下蜂鸟的悦读是这篇考古吗???谢谢啦~~ 蜂鸟化石[附背景资料]V1 by 逛来晃去大概是说蜂鸟化石的事,不知道以前有没有过。 V2 by xrbear57(M51 V20+)1P: 从化石里发现很久以前old world(非洲欧洲)有蜂鸟,但现在灭绝了。 2P: 出现了2个new finding 不停的question 或者是evaluate 蜂鸟化石。 问:1。主题题;2.下面哪个能够strengthold world有蜂鸟。 V3byjadeyang(710 V37)有一段说有古蜂鸟吃一种植物,后来被现代的昆虫传播,所以现代的蜂鸟也可以食用(大概是这个意思吧, 有考题) 最后一段说到一个尚未解决的问题,就是为什么蜂鸟没有居住在更广阔的地方,而他们的食物链明显可以扩展到比现在更广阔的领域。 (有考题)有题问到怎么证明蜂鸟化石与现代蜂鸟是同宗。我选的与一种植物有关(好像是哦) 有题问为什么没有扩展到比现在更广阔的地方,选什么我忘了(我错了……) V4by 指尖墨痕第一段:科学家发现了蜂鸟化石,阐述了这种蜂鸟与现代蜂鸟的相似性,以及相关特征。 第二段:发现很久以前有一种花儿,开始时由蜂鸟来传媒接种的, 但是后来发现又另外一种昆虫,代替了蜂鸟化石,传媒接种。 整篇文章讨论了蜂鸟化石的发现以及一些有关的推断。这个考了 主旨题。 V5by lisaijia526下面哪个能够relativelysupport还是什么蜂鸟灭绝这个事情-
当时没有看到合适选项.因为文章中说了 HUMMING BIRD在OLD WORLD分布了很广. 从这里到山的那里啊.反正都是它的栖息地.但是他还是灭绝了.但是文章里没有说为什 么. 我选的humming bird widely spread in old world. V6by 同济的卡卡(700 V32)题目主要有:1。主题题;2. 下面哪个 能够relatively support还是什么蜂鸟灭绝这个事情 背景资料(感谢逛来晃去同学提供)The birds werediscovered near the village of Frauenweiler in southern Germany. Germany andall of Europe is part of the "Old World" – a region that alsoincludes Africa, Asia and Australia. Finding modern-looking hummingbird fossilsin the Old World might help to explain the existence of certain flowers in Asiaand Africa that seem to scream, "I'm trying to attract ahummingbird!" Why do plants with flowers that seem to be designed to feeda hummingbird grow in parts of the world with no hummingbirds? Mayr has onepossible explanation. He imagines a time when the ancestors of thesehummingbird-friendly flowers and hummingbirds lived together in the Old World.They may have each changed the appearance of the other through a process ofback-and-forth interaction called "coevolution." At some point thehummingbirds disappeared but the plants lived on, according to Mayr. Insectslike long-tongued bees could have taken over the hummingbirds' pollination duties.Pollination is necessary for plants to produce seeds. This "case of thedisappearing hummingbird" is a good example of how discovery of a very oldfossil can change the way we look at the plants and animals that are alivetoday. Mayr named the new hummingbird species Eurotrochilus inexpectatus, whichmeans an "unexpected European version of Trochilus." Trochilus is thename of a group of today's hummingbirds. -- by 会员 zxfjacob (2012/11/14 23:12:43)
额,第一次发帖回复,不晓得怎么回事,看上面拉~~~ |