細節(jié)題是我們UKise閱讀題型之一，也是涉及題量最多的題型，同時也可能是同學們最熟悉的題型之一，如果能夠用題干中原詞定位，其實難度不大。那么今天給大家介紹以下在題干信號詞在原文中發(fā)生變化的情況下，我們如何操作。

首先，題干中信號詞可能會發(fā)生何種形式的變化呢？常見的有：

1.同根詞：difficult vs. difficulty

2.上下義詞：winter condition vs. snow

3.反義詞：cause vs. as a result

4.同義替換：main difficulty vs. chief problem

舉個例子：

Climatic changes at the end of the glacial period 13,000 years ago have been proposed to account for the emergence of farming. The temperature increased dramatically in a short period of time (years rather than centuries), allowing for a growth of the hunting-gathering population due to the abundance of resources. There were, however, fluctuations in the climatic conditions, with the consequences that wet conditions were followed by dry ones, so that the availability of plants and animals oscillated brusquely.

According to paragraph 3, the abundance of resources fluctuated sharply after the end of the glacial period because

O locally abundant resources were quickly exhausted by hunter-gatherers

O the temperature became much higher in some areas over others

O different types of plants and animals became available as the climate changed

O the amount of rainfall varied radically from one period to the next

解析：題干中信號詞the abundance of resources fluctuated sharply在原文中沒有直接出現(xiàn)。有的同學找到第二話末尾…due to the abundance of resources，那么定位就找錯了，那里只說到由于大量資源造成的是人口的上升，并不能回答到題干“資源急劇波動的原因”。

也有同學找到第三句開頭fluctuations in the climatic conditions…但這里同樣沒回答到，只是出現(xiàn)了fluctuations而已，而且還是氣候的波動。

準確的定位應該在最后the availability of plants and animals oscillated brusquely這里，the availability of plants and animals是the abundance of resources的下義詞，oscillated brusquely是fluctuated sharply的同義替換。

題干問because，最后一句說so that…，那么明顯原因是前半句，我們再精讀前半句，能得到原因是伴隨著干濕交替的氣候波動。這樣再去對應選項，同義替換得到D。

【微語】永遠不要忘了你最初的夢想、留學的初衷。