题目内容
6.A.indicator | B.predict | C.process | D.movement | E.adapt | F.tracked |
G.formation | H.deliberate | I.similar | J.advantageous | K.surprised |
Researchers studying fossils (化石) of the early ancestors of dogs that lived up to 40million years ago believe the predators (捕食性动物) evolved as a direct consequence of climate change.The study claims the (41)C transformed man's best friend from a creature that behaved more like a cat,into the canine (犬) we know and love today.
Ancestors of dogs living in North America 40million years ago were ambush (伏击式) predators-in a(n) (42)I way to cats'.But a million years later,the thick forest that once covered the continent began to give way to grasslands.This led to a(n) (43)G in the body shape and hunting behavior of dogs,turning them into animals that no longer (44)K their prey (猎物),but chased it down instead.
This evolutionary transition was (45)F by the scientists who examined the elbows and teeth of 32species of dogs that lived between 40million and two million years ago.
"The elbow is a really good (46)A of what carnivores (食肉动物) are doing with their forelimbs (前肢),which tells their entire (47)D abilities,"said Brown University's Christine Janis,who led the study.
The research was based on an analysis of fossil specimens (标本) in the American Museum of Natural History in New York.It suggests dog evolution was directly related to climate change.After all,it was not (48)J to operate as a pursuit-and-pounce predator until there was room to run.
If predators evolved with climate change over the last 40million years,the authors argue they may continue to (49)E in response to the present global warming trend.In this way,the results of the study could help (50)B how animals may look in the future.
分析 本文属于科普性文章,向读者介绍了狗因气候而变化的观点
解答 41 C 考查名词词义,process过程,进程,这项研究声称这个过程把人类最好的朋友一个行为表现像猫的动物,变成了我们今天知道和喜爱的犬.
42.I 考查形容词词义,根据文意that behaved more like a cat,说明之前的狗和猫比较相像,在这里选择与之对应的similar.
43.G 考查名词词义,此空出现在冠词后,而后面又缺少名词,说明空格处需要填入一个名词.未被使用的名词只有formation 和movement.能与身形和捕猎行为搭配,且意思通顺的名词,应为formation形成.
44.K考查形容词词义,本题考查考生对前半部分文章的理解,不能单看一句.破题点是前文中ambush predators一词.狗以前是猫一样的伏击式捕猎者,变化是如今不再伏击,进一步可以理解为不再袭击动物.surprise的意思除了考生熟悉的"是吃惊"外,还有"袭击"的意思.有的考生会误选tracked.注意:track追踪,看似可以,但是track和chase并不能构成对立的意思.更何况按照常识,狗追踪猎物也属正常.
45.F 考查动词词义,这里要求使用被动语态,有可能的答案只剩下surprised 和tracked.注意surprise的用法只能是sth.surprise sb./sb.be surprised by sth.这道题选对也可以倒推出44题答案.
46.A 考查动词 本空缺少名词作表语,且要描述的对象是elbow,再联系后面的动词tell,可以确定选择indicator(指示物)
47.D 考查名词词义 从语法角度看,此处缺乏形容词修饰名词,但考生不应忽略,名词也可以修饰名词.movement abilities意为"运动能力".
48.J 考查形容词词义 考生应熟悉句型it is (not) adj.to do sth.从而判断本题应选用形容词,备选词有deliberate和advantageous.原文中After all毕竟,和until 直到,给到考生暗示.原文意思是:毕竟,直到有了奔跑的空间,追捕型捕食者才有了优势.
49.E 考查动词 此空需要填写一个能与to搭配的动词原形.备选选项有adapt和predict.语义只有adapt复合语境.从一开始文章就介绍了狗的进化和气候变化有关,而在结尾的地方再次提及"如果在过去的4000万年前,食肉动物是随着气候的变化而进化的,那么…"照常理推论,后面的语义应为继续适应新的变化.
50.B 考查动词 从语法上讲,只剩下predict.从语义上讲,In this way说明前后句义衔接,现在的研究能够预测未来动物的样子.选择predict 语义通顺
点评 考生在做十一选十时,可以先判断所给单词的词性、词义,再与空格所需的词性和词义匹配.本文有一定的难度,给出的单词不少都是多种词性,要求考生在理解全文的基础上,对考纲词汇的各种词性全面掌握.
A. | that,when | B. | what,before | C. | which,before | D. | what,when |