關(guān)閉

澳際學(xué)費在線支付平臺

GMAT閱讀機經(jīng)整理:白蟻的穴.

2017/08/10 15:06:52 編輯: 瀏覽次數(shù):72 移動端

  3月2日換庫后,小編為大家整理這個月的GMAT閱讀機經(jīng),這篇GMAT閱讀機經(jīng)是關(guān)于白蟻的穴的文章,考生朋友可以看看,下面的內(nèi)容為考古內(nèi)容,分享給大家,希望對大家有所幫助,文中觀點僅供參考。

  [V1]

  有那個termite的,說他們造房子,兩種explanation

  考古已確認(rèn)

  53、白蟻穴

  V1:

  p1: 說非洲termite mound有個特別的結(jié)構(gòu)包括一個chimney和若干tunnels,一專家假設(shè)說(有題)這個結(jié)構(gòu)是用來給undergroundnest保溫的。

  p2: 但是又發(fā)現(xiàn)chambers的temperature control能力不足,于是又有專家提出了another explanation,說breeze啥的,讓inside atmosphere可以mixed with outside air tokeep certain humidity, ...(有題)。但這樣atmosphere也利于competitor——fungus的存活,if allowed to grow,xxxx。

  問題:

  專家假設(shè)啥?

  還有一題是推論,if the mound is sealed,會怎么樣?

  背景知識 (8.27 13:45)

  白蟻穴,有類似的介紹,希望可以幫到一點

  termite在underground建立nest的事情。地下的nest結(jié)構(gòu)復(fù)雜,互相連通,為什么會這樣呢?有兩個觀點。

  觀點1:為了保持constant tempature.

  觀點2: 為了使 nest 的 atmosphere 更加適宜,比如氧氣,濕度,還為了可以抑制 its food competitor 的生長。

  第一段,說非洲的一個動物(忘了什么了),在地下挖洞作自己的窩,但地上還有一個內(nèi)部結(jié)構(gòu)復(fù)雜的土堆。一個人解釋說,這是為了排出熱氣,洞內(nèi)溫度。第二段,有人反對,說是洞里的溫度是不變得。這個土堆主要是為了將新鮮空氣帶進來,使得洞內(nèi)的環(huán)境,包括空氣組成、濕度等等都利于動物的生存。還有一個重要的是,這些空氣有助于洞內(nèi)的fungus菌的生長,那種動物就是靠這個菌生活的。

  V2:

  termite mound白蟻穴

  內(nèi)容和JJ的差不多

  p1:termite mound有個特別的結(jié)構(gòu)包括一個chimney和若干tunnels,tunnels是可以干嘛干嘛的(有題)一專家假設(shè):這個結(jié)構(gòu)是用于keep constant tempreture.

  p2: 但是又有專家發(fā)現(xiàn)白蟻穴的temperature control能力不足,于是提出了anotherexplanation,讓inside atmosphere可以mixed with outsideair to keep certain humidity, ...(有題)。這樣的結(jié)構(gòu)也利于fungus的存活(這種菌落是有好處的)

  問題:

  tunnle是干嘛的?(定位第一段那句話)

  主旨題(我選的提供對于白蟻穴的空氣流動問題的2個解釋)

  第二段作用?(我選的提供另一個view)

  V3:

  白蟻穴那個有個選項是說土地的溫度不變的,貌似因此影響到穴的溫度,而不是第一段說的那個tunnel原因?qū)е碌摹?/p>

  V4:

  講非洲白蟻,說原來一個叫L的人說蟻穴上面的mound的功能是保持穴內(nèi)常溫,蟻群新成代謝產(chǎn)生的熱,從mound tunnel里面被帶出去,再從外面進cool air來控溫。第二段說,但是后來發(fā)現(xiàn)地下的溫度本來就不太變,所以mound的控溫功能就重復(fù)了,然后人們就覺得,可能mound是用來管humidity, oxygen跟CO2的。它還影響了下面一種真菌的生長,那種真菌會對白蟻的食物進行預(yù)消化,并且比別的真菌在這種穴里長得好。第一題問這個作者寫這文是干嘛,第二題說如果tunnel被關(guān)起來了,會導(dǎo)致什么,第三題問那個L覺得tunnel是用來干嘛的(用來排新成代謝產(chǎn)生的熱氣)。

  V5:

  白蟻mound那道。

  (1)tunnel可以干嘛。

  (2)根據(jù)文中觀點,tunnel封起來會怎樣。我選的humidity會change

  其他失憶

  V6:

  有個問題不是很確定,問第一段里的學(xué)者認(rèn)為蟻穴的channel的作用

  選項:1 和mound一樣作用 保持恒溫

  2 為了把熱的氣體排出和冷空氣交換,我選的后者。

  23. Termite

  u termite在underground建立nest的事情。地下的nest結(jié)構(gòu)復(fù)雜,互相連通,為什么會這樣呢?有兩個觀點。

  觀點1:為了保持constant tempature.

  觀點2: 為了使nest 的 atmosphere 更加適宜,比如氧氣,濕度,還為了可以抑制its food competitor 的生長。

  u 第一段,說非洲的一個動物(忘了什么了),在地下挖洞作自己的窩,但地上還有一個內(nèi)部結(jié)構(gòu)復(fù)雜的土堆。一個人解釋說,這是為了排出熱氣,洞內(nèi)溫度。第二段,有人反對,說是洞里的溫度是不變得。這個土堆主要是為了將新鮮空氣帶進來,使得洞內(nèi)的環(huán)境,包括空氣組成、濕度等等都利于動物的生存。還有一個重要的是,這些空氣有助于洞內(nèi)的fungus菌的生長,那種動物就是靠這個菌生活的。740

  Wiki背景資料補充:

  Termites build neststo house their colonies. Nests are commonly located in larger timber or in thesoil in locations such as growing trees, inside fallen trees, underground, andin above-ground mounds which they construct, commonly called"anthills" in Africa and Australia

  , despite the technicalincorrectness of that name. Mounds occur when the nest grows beyond itsinitially concealing surface. In tropical savannas the mounds may be verylarge, with an extreme of 9 metres (30 ft)high in the case of large conical mounds constructed by some Macrotermesspecies in well-wooded areas in Africa,[3].Two to three metres, however, would be typical for the largest mounds in most savannas.The shape ranges from somewhat amorphous domes or cones usually covered ingrass and/or woody shrubs, to sculptured hard earth mounds, or a mixture of thetwo. Despite the irregular mound shapes, the different species in an area canusually be identified by simply looking at the mounds.

  The sculpturedmounds sometimes have elaborate and distinctive forms, such as those of thecompass termite (Amitermes meridionalis & A. laurensis) which build tallwedge-shaped mounds with the long axis oriented approximately north-south. Thisorientation has been experimentally shown to help in thermoregulation.

  The column of hotair rising in the above ground mounds helps drive air circulation currentsinside the subterranean network. The structure of these mounds can be quitecomplex. The temperature control is essential for those species that cultivatungal gardens and even for those that don&apost, much fort and energy is spentmaintaining the brood within a narrow temperature range, often only plus orminus one degree C over a day.

  In some parts of theAfrican savanna, a high density of above-ground mounds dominates the landscape.For instance, in some parts of the Busanga Plain area of Zambia, small moundsof about 1 m diameter with adensity of about 100 per hectare can be seen on grassland between larger tree-and bush-covered mounds about 25 m

  in diameter with a density around 1 per hectare, and both show up well onhigh-resolution satellite images taken in the wet season.

  以上就是關(guān)于白蟻的穴這篇GMAT閱讀機經(jīng)的全部內(nèi)容,考生可以有選擇的看看,機經(jīng)雖好,但是也要適度喲。最后祝大家都能考出好成績。

相關(guān)留學(xué)熱詞

  • 澳際QQ群:610247479
  • 澳際QQ群:445186879
  • 澳際QQ群:414525537