your dinner是主语,seems是系动词,ready是表语。
ready
英 ['redi] 美 ['redi]
adj. 准备好的;现成的;乐意的;情愿的
The troops were ready for anything.
部队已做好了一切准备。
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用法
adj. (形容词)
1、ready在句中多用作表语,基本意思是“准备”,指某人做某事之前已有所准备;也可作“乐意的,情愿的”解,指人决心做某事,愿意并急欲采取行动;ready也可作“可能做某事的”解;还可作“迅速的,立即的”解,此时可用作定语。
2、ready在句中用作表语时其后可接动词不定式(不接动名词),也可接介词短语。