初中英語狀語從句知識點:原因狀語從句

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            初中英語狀語從句知識點:原因狀語從句

              原因狀語從句

              連詞有:because as since now that等

              (1) 區分because, as, since, for

              ① because表示人們不知道的直接的原因或理由,著重點在從句,其所引導的從句,為全句句意的中心所在。通常用于回答why引出的疑問句,語氣最強,除特別強調外,該從句一般位于主句后面,不能與so連用但是可以與so進行同義句轉換。

              I didnt go aboard with her because I couldnt afford it.

              我沒有和她一起出國是因為費用太高。

              ② as引導的原因狀語從句所傳遞的通常是已知信息,從句多位于主句之前,表示雙方那個已知的理由,如:

              As I didnt know the way,I asked a policeman.

              我不認識路,因而問警察。

              ③ since引導的原因狀語從句多表示大家眾所周知的理由,如:

              Since traveling by air is much faster, they decided to take a plane.

              既然乘飛機旅行快得多,他們就決定坐飛機。

              ④ for表示的理由是附加的或推斷的,并非此原因,通常與主句用逗號隔開,不位于句首,如:

              He must be not at home, for the telephone isnt answered.

              用because, as, since, for 填空:

              Well have to go to bed early ___________ well start off early tomorrow.

              ___________ you know all about it, tell me please.

              ____________ all the seats were taken, I had to stand.

              He must be at work, __________ the light in his office is still on.

              Lily didnt go to school ___________ she was ill.

              =_________________________________________________________.

              (2) now that引導的原因狀語從句

              Now that 因為;既然,通常可以和since換用。用來表示一種新的情況,再加以推論。如:

              Now(that) you have passed your test, you can drive on your own.

              你既已考試合格,就可以獨自開車了。

            返回:初中英語知識點詳解狀語從句篇

              原因狀語從句

              連詞有:because as since now that等

              (1) 區分because, as, since, for

              ① because表示人們不知道的直接的原因或理由,著重點在從句,其所引導的從句,為全句句意的中心所在。通常用于回答why引出的疑問句,語氣最強,除特別強調外,該從句一般位于主句后面,不能與so連用但是可以與so進行同義句轉換。

              I didnt go aboard with her because I couldnt afford it.

              我沒有和她一起出國是因為費用太高。

              ② as引導的原因狀語從句所傳遞的通常是已知信息,從句多位于主句之前,表示雙方那個已知的理由,如:

              As I didnt know the way,I asked a policeman.

              我不認識路,因而問警察。

              ③ since引導的原因狀語從句多表示大家眾所周知的理由,如:

              Since traveling by air is much faster, they decided to take a plane.

              既然乘飛機旅行快得多,他們就決定坐飛機。

              ④ for表示的理由是附加的或推斷的,并非此原因,通常與主句用逗號隔開,不位于句首,如:

              He must be not at home, for the telephone isnt answered.

              用because, as, since, for 填空:

              Well have to go to bed early ___________ well start off early tomorrow.

              ___________ you know all about it, tell me please.

              ____________ all the seats were taken, I had to stand.

              He must be at work, __________ the light in his office is still on.

              Lily didnt go to school ___________ she was ill.

              =_________________________________________________________.

              (2) now that引導的原因狀語從句

              Now that 因為;既然,通常可以和since換用。用來表示一種新的情況,再加以推論。如:

              Now(that) you have passed your test, you can drive on your own.

              你既已考試合格,就可以獨自開車了。

            返回:初中英語知識點詳解狀語從句篇

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