句子結(jié)構(gòu)
找謂語動(dòng)詞(began, came, wants, cannot be foreseen);
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找連詞(when, that, that)
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前面沒有從屬連詞的動(dòng)詞即為主句的謂語動(dòng)詞
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確定主從句
主句：This trend began during the Second World War ;
從句：定語從句when several governments came to the conclusion修飾the Second World War，本從句嵌套著一個(gè)二級(jí)從句即同位語從句that the specific demands cannot generally be foreseen in detail修飾conclusion和一個(gè)三級(jí)從句that引導(dǎo)的定語從句that a government wants to make of its scientific establishment修飾demands。
(3)解析
during the Second World War介詞短語做狀語;when several governments came to the conclusion that the specific demands that a government wants to make of its scientific establishment cannot generally be foreseen in detail 做定語修飾the Second World War ;that the specific demands cannot generally be foreseen in detail同位語從句修飾conclusion ;that a government wants to make of its scientific establishment修飾demands。
(4)本句的參考譯文
這種趨勢(shì)始于第二次世界大戰(zhàn)期間，當(dāng)時(shí)一些國(guó)家的政府得出結(jié)論：政府向科研機(jī)構(gòu)提出的要求通常是無法詳盡預(yù)見的。
總之，只要考生對(duì)句子結(jié)構(gòu)有個(gè)透徹的理解，弄清句子的各個(gè)成分，并可以借助連詞、介詞、非謂
考研培訓(xùn)
