Most accounts of sluicing assume it is derived by TP deletion at PF; however, C′ deletion is a viable option, which is even better equipped to explain the Sluicing–Comp Generalization. Nonetheless, this article shows that C′ deletion must be rejected, because it predicts scope enhancement for modals that raise to C in sluicing when in fact they take scope in T or below it. An implication is that some independent principle must block T‐to‐C movement under sluicing. The results further confirm that head movement must be a syntactic operation insofar as it affects semantic interpretation.

中文翻译：

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反对T＆C运动的范围争论

大多数的泄密都假定它是由于PF处的TP删除而产生的。但是，删除C'是一个可行的选择，甚至可以更好地解释Sluicing-Comp Generalization。尽管如此，本文显示必须拒绝C'删除，因为它预测了在水闸中上升到C的模态实际上在T或以下时会扩大范围。这暗示着一些独立的原则必须阻止水闸下的T to C运动。结果进一步证实，头部移动必须是一种语法操作，因为它会影响语义解释。