分類
名詞性從句:主語從句、表語從句、賓語從句和同位語從句。
形容詞性從句:定語從句
副詞性從句:時間狀語從句、原因狀語從句、地點狀語從句、條件狀語從句、讓步狀語從句、目的狀語從句、結(jié)果狀語從句和方式狀語從句。
一、名詞性從句
單純連接詞:that, if, whether(句中不充當(dāng)成分)
疑問代詞:who, whoever, whichever, what, whatever
疑問副詞:when, where, why, how
(一)主語從句
That we shall be late is certain.他遲到是肯定的。
Who he is doesn’t concern me.
What she did is not yet known.
How the prisoner escaped is a complete mystery.
It is certain that we shall be late.
It’s not yet known what she did.
重要考點
That 不充當(dāng)成分但不可省略。
為保句子平衡,可用it 做形式主語,真正主語從句放在句末.
That the earth goes around the sun is well-known to everybody.地球圍繞著太陽轉(zhuǎn)是眾所周知的事實。(= It is well-known to everybody that the earth goes around the sun.)
謂語動詞單數(shù)。
只能使用whether表示是否, if 不可以使用
用何連詞看從句中缺少什么成分來決定
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