[求助](OG11verbal-10)mumuwa的逻辑简图法存疑

changyu321

mumuwa的逻辑简图说要记下态度词，可一些科学类文章没有什么态度词嘛?

一些科学类文章作者基本上没有什么倾向，一直在陈述，那时候逻辑简图中记录的只有转折词，请问是不是要记下一些关系词（也就是反映事物之间关系的词）呢？比如以下这篇我做的分析（段中心句），那个NN能指导一下分析的缺点，感激不禁^_^

Neotropical coastal mangrove forests are usually＂zonal,＂with certain mangrove species found predominantly in the seaward portion of the habitat and other mangrove species on the more landward portions of the coast．The earliest research on mangrove forests produced descriptions of species distribution from shore to land，without exploring the causes of the distributions．

 The idea that zonation is ca used by plant succession. was first expressed by J．H．Davis
   in a study of Florida mangrove forests．According to Davis’ scheme（老观点），the shoreline is being extended in a seaward direction because of the＂land-building＂role of mangroves,which, by trapping sediments over time，extend the shore．As a habitat gradually becomes more in land as the shore extends，the＂land-building＂species are replaced．This continuous process of accretion and succession would be interrupted（-）only(极端词，出题点) by hurricanes or storm flushings．

 Recently the universal application of Davis’　succession paradigm has been challenged(-)．It appears（弱化动词） that in areas where weak currents and weak tidal energies allow the accumulation of sediments，mangroves will follow（+） land formation and accelerate（+） the rate of soil accretion；succession will proceed according to Davis’ scheme．But（转折词，注意相异） on stable coastlines，the distribution of mangrove species results in other（-） patterns of zonation；＂land building＂does not occur．

 To find a principle that explains the various distribution patterns，several researchers have looked to salinity and its effects on mangroves．While mangroves can develop in fresh water, they can also thrive in salinities as high as 2．5 times that of seawater．However（转折词，引出新观点）, those mangrove species found in freshwater habitats do well only(极端词，出题点)  in the absence of competition，thus suggesting that salinity tolerance is a critical（+） factor in competitive success among mangrove species．Research suggests that mangroves will normally dominate highly saline regions，although（让步略读） not because they require salt．Rather(递进副词，整句略读),they are metabolically efficient (and hence grow well)in portions of an environment whose high salinity excludes（-） plants adapted to lower salinities．Tides create different degrees of salinity along a coastline．The characteristic mangrove species of each zone should exhibit a higher metabolic efficiency at that salinity than will any potential invader, including other species of mangrove．

逻辑简图

1）
     引入zonal的概念，指出without exploring the causes

2）
     Davis的观点：because of the＂land-building＂role of mangroves，extend，replaced，interrupted（-）only
    by hurricanes or storm flushings．

3）
     指出Davis观点的缺陷appears（弱化动词），follow（+），accelerate（+），But，other（-）

4）
     提出新观点：However，salinity tolerance，critical（+），Rather，efficient，excludes（-），different

[此贴子已经被作者于2008-9-22 19:50:12编辑过]

changyu321

自己顶一下~

wangstriking

分析的不错