4.Howling is a behavior commonly observed among a wolf pack.As pack animals,wolves work together to hunt and rely on howling as an important means of communication among each other.There are different explanations of a wolf's howl and it appears that there may be more to discover.
One theory is that wolves howl to bond better together.It's almost as if howling together helps the pack stay together.Perhaps it's something similar to people feeling a sense of involvement with each other when singing a song together.But this theory may be wrong,explains Fred H.Harrington,a professor who studies wolf behavior.
Indeed,there have been times when wolves have been seen one moment howling in a chorus,and the next,quarreling among each other.It appears that usually the lowest-ranking members of the pack may actually be"punished"for joining in the chorus at times.So is howling a way to strengthen a social bond or just a way to reconfirm (重新確認) status among its members?-Why do wolves howl for sure?
What is clear,however,is that howling is often used among packmates to locate each other.Hunting grounds are distant and it happens that wolves may separate from one another at times.When this happens,howling appears to be an excellent means of gathering.
Howling,interestingly,is a contagious behavior.When one wolf starts to howl,very likely others will follow.This is often seen to happen in the morning,as if wolves were doing some sort of"roll call"where wolves all howl together to report their presence.
28.What is the possible similarity between wolves'howling together and human's singing in chorus?D
A.The act of calling each other.
B.The sense of accomplishment.
C.The act of hunting for something.
D.The sense of belonging to a group.
29.Why does Harrington think the"social bond"theory may be wrong?C
A.Wolves tend to protect their hunting grounds.
B.Wolves separate from each other after howling.
C.Wolves sometimes have quarrels after howling together.
D.Wolves of low rank are encouraged to join in the chorus.
30.Researchers are sure that wolves often howl toB.
A.show their ranks
B.find their companions
C.report the missing ones
D.express their loneliness
31.The underlined sentence in the last paragraph probably meansD.
A.howling is a signal for hunting
B.howling is a way of communication
C.howling often happens in the morning
D.howling spreads from one to another.
分析 本文是一篇說明文,主要講述了有關(guān)狼咆哮的現(xiàn)象,咆哮是被觀察到的狼群間的一種普遍行為,和其它動物一樣,狼是群居動物,一起獵食,咆哮是狼群間相互交流的一種方式,關(guān)系狼的咆哮有好幾種解釋,似乎有很多的發(fā)現(xiàn).一種理論是狼是如何更好地聚集在一起.他們似乎像是被打包在一起,也有點類似人類在一起感覺到一種互相牽連的感覺,但這種觀點好像是錯的.有一些時候狼會在一起合唱,然后接下來彼此爭吵.狼為什么要咆哮,是一種加強社會聯(lián)系和確認成員間的地位,咆哮常常是在群體里找到彼此,狼的咆哮是有傳染性的
解答 28-31 DCBD
28 D 細節(jié)理解題.根據(jù)文章第二段的"One theory is that wolves howl to bend better together.It's almost as if howling together helps the pack stay together.Perhaps something similar to people feeling a sense of involvement with each other when singing a song together"可知,一種理論是狼是如何更好地聚集在一起,他們似乎像是被打包在一起,也有點類似人類在一起感覺到一種互相牽連的感覺,咆哮常常是在群體里找到彼此,即歸屬感故選D.
29 C 細節(jié)理解題.定位關(guān)鍵詞"wrong",根據(jù)文章第一段中"there have been tines when wolves have been seen one moment howling in a exhorts,and the next,quarreling anions each other."可知,這種觀點好像是錯的,因為有一些時候狼會在一起合唱,但然后接下來狼群間會彼此爭吵,再由"It appears that usually the lowest-tanking menthes of the pack may actually be"punished"for",可知,排名低的狼似乎還會受到懲罰,故選C.
30 B 細節(jié)理解題.定位"sure"和文章第四段的"what is clear"相對應(yīng),再由"is that howling is often used among packmates to locate each other"可知,狼的嚎叫是狼在召喚同伴,故選B.
31 D 猜測詞義題.定位"contagious behavior",從該詞下文舉的例子"When one wolf starts to howl,very likely others will follow."說明"contagious behavior"的意思的解釋,可以看出Howling…is a contagious behavior意思很可能是"howling spreads from one to another"的意思,即是一種傳染行為,故選D.
點評 學(xué)生需要認真閱讀原文,把握文章大意,對文章脈絡(luò)有整體的了解,能仔細查找文中細節(jié),并能根據(jù)文章內(nèi)容進行合理的推測判斷.