14.Have you ever wondered why birds sing?(36)B After all,you probably sing or whistle when you are happy.
Some scientists believe that birds do sing some of the time just because they are happy.
(37)FTheir singing is actually a warning to other birds to stay out of their territory.Do you know what a"territory"is?A territory is an area that an animal,usually the male,claims(聲稱(chēng)) as its won.Only he and his family are welcome there.No other families of the same species are welcome.Your yard and house are your territory where only your family and friends are welcome.If a stranger should enter your territory and threaten you,you might shout. (38)EIf so,you have actually scared the stranger away without having to fight him. (39)ABut he expects an outsider almost all the time,especially at nesting(筑巢) season.So he is screaming all the time,whether he can see an outsider or not.This screaming is what we call a bird's song,and it is usually enough to keep an outsider away.
Birds sing loudest in the spring when they are trying to attract a mate(配偶) and warn others not to enter the territory of theirs.
(40)D Most of it has to do with attracting males and setting up territories.

A.A bird does the same thing.
B.Maybe you thought that they were just happy.
C.Shouting loudly is just like a bird's screaming.
D.You can see that birds have a language of their own.
E.Probably this would be enough to frighten him away.
F.However,they sing most of the time for a very different reason.
G.So,just like human beings,birds sing for almost the same reasons.

分析 文章介紹了鳥(niǎo)為什么會(huì)唱歌,大部分鳥(niǎo)的歌聲是一種警告,為了保護(hù)自己的領(lǐng)地不被外來(lái)者侵犯.

解答 36--40 BFEAD
36.B 考查上下文理解判斷能力.根據(jù)下文After all,you probably sing or whistle when you are happy可知,畢竟,當(dāng)你高興的時(shí)候你可能唱歌或吹口哨.由此可知,前文應(yīng)是:鳥(niǎo)可能也是高興才唱歌.故選B.
37.F 考查上下文理解判斷能力.根據(jù)下文Their singing is actually a warning to other birds to stay out of their territory可知,鳥(niǎo)的唱歌實(shí)際上是一種警告其它的鳥(niǎo)避開(kāi)它們的領(lǐng)地.由此可知,前文應(yīng)是:它們大多數(shù)時(shí)候唱歌是因?yàn)椴煌脑颍蔬xF.
38.E 考查上下文理解判斷能力.根據(jù)下文If so,you have actually scared the stranger away without having to fight him可知,如果這樣,你實(shí)際上不必同他作斗爭(zhēng)而嚇走陌生人.由此可知,前文應(yīng)是:這可能足夠嚇走他.故選E.
39.A 考查上下文理解判斷能力.根據(jù)前文:If so,you have actually scared the stranger away without having to fight him可知,如果這樣,你實(shí)際上不必同他作斗爭(zhēng)而嚇走陌生人.由此可知,下文應(yīng)是:鳥(niǎo)也做著同樣的事情.故選A.
40.D 考查上下文理解判斷能力.根據(jù)前文Birds sing loudest in the spring when they are trying to attract a mate and warn others not to enter the territory of theirs可知,當(dāng)它們努力吸引配偶和警告其它的鳥(niǎo)不要進(jìn)入它們的領(lǐng)地時(shí)唱歌聲音最大.由此可知,下文應(yīng)是:你可能明白鳥(niǎo)也有自己的語(yǔ)言.故選D.

點(diǎn)評(píng) 七選五題型看似簡(jiǎn)單,實(shí)際上有時(shí)完全作對(duì)并不容易,需要方法和分析能力及足夠的耐力,有必要進(jìn)行專(zhuān)門(mén)練習(xí).首先,快速瀏覽一遍七個(gè)備選答案,先確定哪個(gè)選項(xiàng)適合放在文章的什么位置.其次,快速瀏覽文章,確定文章體裁,抓住文章結(jié)構(gòu),分析篇章結(jié)構(gòu),找出各段的主題句或主旨大意.其三,注意各選項(xiàng)中出現(xiàn)的句子銜接手段,尋找句中銜接標(biāo)志詞,七選五備選答案中有兩個(gè)多余的選項(xiàng),會(huì)對(duì)文章中兩個(gè)空的選擇構(gòu)成干擾,這時(shí)要特別細(xì)致地比對(duì)相似選項(xiàng).最后,用代入法,檢查答案是否合理,將所有選擇答案放回空白處,通讀全文,檢查文章內(nèi)容是否語(yǔ)義連貫合理、緊扣主題,語(yǔ)篇結(jié)構(gòu)是否通順連貫、具有一致性、合乎邏輯,寫(xiě)作思路是否清晰明了,格式以及用語(yǔ)是否恰當(dāng)貼切,從而判斷選擇的答案是否正確.

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