考博英語長難句拆分信號：

1、標點符號：

比如，2個逗號形成插入語，破折號表示解釋說明，分號相當于“and”表示并列;

2、連詞：

并列句的并列連詞and、or、but、yet、for等，從句的從屬連詞which、that、when、how、if等;

3、介詞：

介詞引導介詞短語，介詞短語在句子中可充當定語、狀語等修飾成分;

4、不定式符號to：

不定式符號to引導不定式短語，在句子中除了可以充當主語、賓語、表語、補語等主干成分外，還可做定語、狀語等修飾成分;

5、分詞：

分詞包括現(xiàn)在分詞和過去分詞，在句子中可充當定語和狀語修飾成分。

下面我們就按照長難句拆分原則，依照這些拆分信號，結(jié)合考博英語閱讀或翻譯真題中的長難句進行實戰(zhàn)演練一下吧!

1、This trend began during the Second World War, 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.

(1)句子拆分

拆分點：從屬連詞、介詞、標點符號

This trend began ∥during the Second World War, ∥ 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.

(2)句子結(jié)構(gòu)

找謂語動詞(began, came, wants, cannot be foreseen);

找連詞(when, that, that)

前面沒有從屬連詞的動詞即為主句的謂語動詞

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，本從句嵌套著一個二級從句即同位語從句that the specific demands cannot generally be foreseen in detail修飾conclusion和一個三級從句that引導的定語從句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

這種趨勢始于第二次世界大戰(zhàn)期間，當時一些國家的政府得出結(jié)論：政府向科研機構(gòu)提出的要求通常是無法詳盡預(yù)見的。

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