extraposition

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问题 extraposition

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答案Extraposition is defined as "the replacement of the postponed item by a substitute form". The extraposed item is almost always a nominal clause, which satisfies the desire for end-weight. In function, the extraposed item can be subject or object; in form, it can be finite or non-finite. When we remove a clausal subject or object to the final focal position, we use the anticipatory it to fill in the slot. Grammatically speaking, it is the formal subject or object while the extraposed clause is the real or notional subject or object.

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