GRE閱讀中羅馬數字題的解答

　　考生要想進步gre瀏覽的速率而且包管答題的準確率，懂得gre瀏覽測驗的題型而且找到響應題目標解答辦法是非常主要的，本日留學gre測驗頻道就為考生分享下GRE瀏覽中羅馬數字題的解答技能，願望能助考生落井下石!

　　羅馬數字題是GRE瀏覽中湧現比擬多的一種題型，平日情形，測驗的題型中定會有一道或兩道這種題型。固然，出題的數量不是許多，然則也要特殊留意。羅馬數字題重要考核考生對文章的懂得和一些邏輯推理才能。在對文章的時刻要對一些例子、說明等特殊存眷，要在文中做好標誌，以便敏捷地找到謎底。

　　羅馬數字題題的根本構造：

　　The author provides following which of the following examples in the passage?

　　1.Ⅰ only

　　2.Ⅱ only

　　3.Ⅲ only

　　4.Ⅰ & Ⅱ

　　5.Ⅱ & Ⅲ

　　當碰到羅馬數字題時，起首回原文找枚舉，沒有枚舉再持續看題做答。做大多半羅馬數字題有捷徑可走的，考生應當在看完選項後先看備選謎底。好比，幾個備選謎底都有Ⅰ，則Ⅰ確定是準確的，就沒必要再斷定了。

　　下面舉一個詳細的例子：

　　The recent, apparently successful, prediction by mathematical models of an appearance of El Nino—the warm ocean current that periodically develops along the Pacific coast of South America—has excited researchers……

　　It has long been known that during an El Nino, two conditions exist: (1) unusually warm water extends along the eastern Pacific, principally along the coasts of Ecuador and Peru, and (2) winds blow from the west into the warmer air rising over the warm water in the east.These winds tend to create a feedback mechanism by driving the warmer surface water into a “pile” that blocks the normal upwelling of deeper, cold water in the east and further warms the eastern water, thus strengthening the wind still more.The contribution of the model is to show that the winds of an El Nino, which raise sea level in the east, simultaneously send a signal to the west lowering sea level.According to the model, that signal is generated as a negative Rossby wave, a wave of depressed, or negative, sea level, that moves westward parallel to the equator at 25 to 85 kilometers per day.Taking months to traverse the Pacific, Rossby waves march to the western boundary of the Pacific basin, which is modeled as a smooth wall but in reality consists of quite irregular island chains, such as the Philippines and Indonesia.

　　……

　　不管做甚麽題，咱們在對完文章後，都要清晰一個根本的題目，便是文章的構造和行文思緒。這篇文章屬於結論說明型文章，作者在第一段的第一句話就提出了卻論，背面所之內容都是對這個結論的說明解釋。以是，文章的首句是全文的中間句(topic sentence)。

　　It can be inferred from the passage that which of the following would result fairly immediately from the cessation of the winds of an El Nino?

　　I.Negative Rossby waves would cease to be generated in the eastern Pacific.

　　II. The sea level in the eastern Pacific would fall.

　　III. The surface water in the eastern Pacific would again be cooled by being mixed with deep water.

　　(A) I only

　　(B) II only

　　(C) I and II only

　　(D) I and III only

　　(E) I, II, and III

　　剖析：

　　1.弄清標題和選項的意思

　　題目標意思是“假如致使厄爾尼諾的風停滯，會湧現甚麽成果?”

　　I.負的R波在寧靖洋不會發生。

　　II.東寧靖洋的海平會降低。

　　Ⅲ.東寧靖洋表層海水會由於深層水的混雜而從新變冷。

　　2.找到解答題目標沖破口

　　文章中的第二段重要講了這類風的後果，假如是風停滯了，那末咱們只需對文中的後果取非便可，這是解答這道題的癥結。文中的暗影部門便是對這部門的說明。下面咱們就這三個選項舉行剖析。

　　Ⅰ.這部門在文中的定位是The contribution of the model is to show that the winds of an El Nino, which raise sea level in the east, simultaneously send a signal to the west lowering sea level.According to the model, that signal is generated as a negative Rossby wave, 即“此模子的進獻在於表現了厄爾尼諾征象中的風使東海平面升高，同時向西部低海平面區發送一個旌旗燈號。該旌旗燈號可稱作負的Rossby波，此波低於海平面，平行於赤道西移。”咱們就能夠曉得，這個旌旗燈號是由厄爾尼諾征象中的風所致使的，假如致使厄爾尼諾的風停滯，那末也就不會有這個旌旗燈號的湧現，如許，Ⅰ的說法是準確的。

　　Ⅱ.這部門在文中的定為也是上面所提到的，在厄爾尼諾征象中的風使東海平面升高，那末，假如致使厄爾尼諾的風停滯了，東寧靖洋的海平面就會規復正常的狀況，這類正常的狀況應當與厄爾尼諾征象中的風使東海平面升高是相反的，以是，東寧靖洋的海平會降低是準確的。

　　以上內容為考生具體先容了GRE瀏覽中羅馬數字題的解答辦法，願望能為備登科的考生供給一些指點，更多gre測驗出色內容盡在留學gre測驗頻道，敬請考生連續存眷。預祝考生在接下來gre測驗中有精彩的施展。