托福閱讀長(zhǎng)難句100句:農(nóng)業(yè)的產(chǎn)生

　　Many prehistorians believe that farming may have emerged dependently in several different areas of the world when small communities, driven by increasing population and a decline in available food resources, began to plant seeds in the ground in an effort to guarantee their survival. (TPO33, 44)

　　大家自己先讀，不回讀，看一遍是否能理解

　　Many prehistorians believe that farming may have emerged dependently (in several different areas of the world) (when small communities, (driven by increasing population and a decline in available food resources), began to plant seeds in the ground in an effort to guarantee their survival). (TPO33, 44)

　　托福閱讀長(zhǎng)難句100句分析：

　　這個(gè)句子的主干是：

　　Many prehistorians believe that從句

　　從句中的主干是：

　　farming may have emerged dependently

　　修飾一：(in several different areas of the world)，介詞短語(yǔ)

　　中文：在世界幾個(gè)不同地區(qū)

　　修飾二：(driven by increasing population and a decline inavailable food resources)，非謂語(yǔ)動(dòng)詞，相當(dāng)于形容詞修飾small communities

　　中文：迫于人口不斷增長(zhǎng)和可用食物資源減少

　　修飾三：(when small communities began to plant seeds in the ground in an effort to guarantee their survival)，從句

　　大家一定要注意這里的斷句問題!!!

　　從句的主謂被非謂語(yǔ)給隔開了。就是它：

　　(driven by increasing population and a decline inavailable food resources)

　　中文：當(dāng)一些小的群落開始在地里種植種子去努力保證他們生存時(shí)

　　托福閱讀長(zhǎng)難句100句參考翻譯：

　　許多史前學(xué)家認(rèn)為：當(dāng)一些小的群落迫于人口不斷增長(zhǎng)和可用食物資源減少壓力，開始在地里種植種子去努力保證他們生存時(shí)，農(nóng)業(yè)可能在世界幾個(gè)不同地區(qū)就獨(dú)立出現(xiàn)了。

　　這個(gè)句子的主要修飾成分就是非謂語(yǔ)動(dòng)詞、介詞短語(yǔ)和從句，大家務(wù)必想清楚，每一個(gè)修飾成分修飾的是什么，才能看清楚這個(gè)句子的結(jié)構(gòu)。