【文章內(nèi)容簡介】
第一步:明確原文中哪些段落需要匹配標(biāo)題,并劃掉已經(jīng)用過的標(biāo)題。通過仔細(xì)看文章和題目,考生可以很快明確哪些段落有待匹配標(biāo)題。根據(jù)題目范例,考生可以首先把標(biāo)題vii和vi劃掉,把文章中已經(jīng)匹配的A和C段去掉。如此一來,考生最終只需給文章中的B、D、E和F段匹配段落標(biāo)題?! 〉诙剑簞澇龈鳂?biāo)題中的核心詞。各標(biāo)題中的核心詞依次如下:irrigation、sedimentation。flooding、the Cairo area。pollution、Mediterranean。a natural process。food production。the longterm impact?! ∮捎诟鱾€(gè)段落之間在解題的第三、四步是相對獨(dú)立的,因此接下來筆者將以段落為單位來分析如何通過第三步和第四步解題?! Up to now, people have blamed this loss of delta land on the two large dams at Aswan in the south of Egypt, which hold back virtually all of the sediment that used to flow down the river. Before the dams were built, the Nile flowed freely, carrying huge quantities of sediment north from Africa’s interior to be deposited on the Nile delta…. But when the Aswan dams were constructed in the 20th century to provide electricity and irrigation, and to protect the huge population centre of Cairo and its surrounding areas from annual flooding and drought, most of the sediment with its natural fertilizer accumulated up above the dam in the southern, upstream half of Lake Nasser, instead of passing down to the delta. 第三步(B段):重點(diǎn)閱讀各段前兩句話和最后兩句話,快速瀏覽其余文字,掌握段落大意。通過重點(diǎn)讀B段的前兩句話和后