分類(lèi)
名詞性從句:主語(yǔ)從句、表語(yǔ)從句、賓語(yǔ)從句和同位語(yǔ)從句。
形容詞性從句:定語(yǔ)從句
副詞性從句:時(shí)間狀語(yǔ)從句、原因狀語(yǔ)從句、地點(diǎn)狀語(yǔ)從句、條件狀語(yǔ)從句、讓步狀語(yǔ)從句、目的狀語(yǔ)從句、結(jié)果狀語(yǔ)從句和方式狀語(yǔ)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(wèn)代詞:who, whoever, whichever, what, whatever
疑問(wèn)副詞:when, where, why, how
(一)主語(yǔ)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(diǎn)
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(yǔ),真正主語(yǔ)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(yáng)轉(zhuǎn)是眾所周知的事實(shí)。(= It is well-known to everybody that the earth goes around the sun.)
謂語(yǔ)動(dòng)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(lái)決定
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