考研英語：歷年真題閱讀要點之1992-Text 2

　　If this warming up took place, the ice caps in the poles would begin to melt, thus raising sea level several metres and severely flooding coastal cities.

　　take place發(fā)生;raising和flooding現(xiàn)在分詞表示必然結(jié)果，其前可用thus;如果是不定式to do表示意外結(jié)果，其前可用only;flood充當(dāng)動詞，表示“淹沒”。

　　But the weather experts are now paying more attention to West Antarctic, which may be affected by only a few degrees of warming: in other words, by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels.

　　pay attention to“注意，重視”;which引導(dǎo)非限定性定語從句表示補充說明West Antarctic;冒號的出現(xiàn)，說明冒號前后語義一致，冒號后補充說明冒號前，二者看懂其一即可;從in other words也可以判斷出這種關(guān)系。

　　This seems to have a considerable effect on the distribution of the earth’s atmospheric pressure, and consequently on wind circulation.

　　have a considerable effect on..., and consequently on...“對...造成重大影響，從而影響到...”，這個句式可以應(yīng)用于寫作。

　　關(guān)于文章把握以上內(nèi)容基本上就可以了。接下來，我們看一下38題。

　　38. Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling. This is ________.

　　[A] mainly because the levels of carbon dioxide are rising

　　[B] possible because the ice caps in the poles are melting

　　[C] exclusively due to the effect of the inertia of the earth’s climate(D)

　　[D] partly due to variations in the output of solar energy

　　這是一道因果細(xì)節(jié)題。首先返回原文定位?？梢远ㄎ坏降谖宥蜨owever, most of the fuel is burnt in the northern hemisphere, where temperatures seem to be falling.正好對應(yīng)題干。接下來，Scientists conclude, therefore, that up to now natural influences on the weather have exceeded those caused by man. The question is: Which natural cause has most effect on the weather?科學(xué)家得出的結(jié)論中只提到natural influences。段尾是個問句，究竟是什么自然因素呢?我們關(guān)注下一段首句One possibility is the variable behavior of the sun.接下來，整段都在描述太陽活動對地球溫度的影響，所以本題選D?？匆幌翪選項，exclusively“僅僅，唯獨”屬于極端詞，過于絕對;no, never, all都屬于極端詞;選項如果含有這樣的表達(dá)往往是錯的。相反，possible, may, partly這樣的詞均屬于委婉表達(dá);選項如果含有這樣的表達(dá)往往是對的。當(dāng)然，這種方法主要用于實在選不出來的時候。