always be on 跟be always on的区别?
问题描述:
always be on 跟be always on的区别?
1-We should always be on our guard against complacency.2-The workers in the factory are always on theri guard against accidents.疑问:为什么第一句的Be动词位置跟第二句不同啊?always be on 跟be always on难道名词factory后一定要接系动词,不能接副词么?
答
be 动词放在助动词,情态动词,be动词后面,或者实意动词前.第一句话因为有情态动词should,所以把always放在了be的前面,这时候相对于should把be动词看作是实意动词.第二句只有be动词,所以直接放在be动词后面.