雅思閱讀長難句

It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.

雅思閱讀長難句專家解析

【難點】

這個句子整體上是個并列句，這一點我們可以根據(jù)but來判斷，前后都是獨立的句子，是兩個并列的子句。在這兩個并列子句中都分別有個主語從句，句式還是比較整齊的。在第二個并列句中，還有一個狀語從句，也就是humans had formed even semi-permanent settlements。大家在分析這個句子的時候，要先找到兩個并列的子句，然后將子句中的主語從句找到，這樣分析起來就會容易得多。

【子句拆分】

并列句1：It will never be known something.
主語從句1：How and when this numeration ability developed.
并列句2：It is certain something.
主語從句2：Numeration was well developed.
狀語從句：Humans had formed even semi-permanent settlements.

【成分劃分】

并列句1：It [形式主語] will [謂語] never [狀語] be known [謂語] something. [主語]
翻譯：某事永遠不會被知道。

連接詞：HOW AND WHEN
主語從句1：This numeration ability [主語] developed. [謂語]
翻譯：這種計數(shù)能力是怎樣以及何時開發(fā)的。

連接詞：BUT
并列句2：It [形式主語] is [系動詞] certain [表語] something. [主語]
翻譯：某事是可以肯定的。

連接詞：THAT
主語從句2：Numeration [主語] was well developed. [謂語]
翻譯：計數(shù)方法已經(jīng)很發(fā)達了。

連接詞：BY THE TIME
狀語從句：Humans [主語] had formed [謂語] even semi-permanent settlements. [賓語]
翻譯：人類已經(jīng)形成穩(wěn)定的半永久式定居模式。

【全句翻譯】

人們永遠不會知道這種計數(shù)能力是怎樣以及何時開發(fā)的，但是可以肯定的是，當(dāng)人類已經(jīng)形成穩(wěn)定的半永久式定居模式時，計數(shù)方法已經(jīng)很發(fā)達了。

雅思閱讀長難句知識點梳理

主語從句

在主從復(fù)合句中充當(dāng)主語的句子是主語從句。
① It is certain that he will win the match.
② What caused the accident remains unknown.

并列句

并列句是構(gòu)成并列復(fù)合句的簡單句。
① I like action movies but I don't like thrillers.
② Take the chance, or else you will regret it.