比较难区分的是动词+副词与动词+介词这两种动词词组.
动词+副词:可不带宾语独立使用(不及物动词);而带宾语时(及物动词),副词的位子很灵活,可在宾语前面,也可在宾语后面.例:
Get up!It's late for school.(get 是不及物动词)
I'll take up the job when I come back./ I'll take the job up when I come back.(take 是及物动词)
动词+介词:必须有宾语.不及物动词+介词词组后面是介词宾语,及物动词+介词则有两个宾语,跟在动词后面的是动词宾语,跟在介词后面的是介词宾语.例:
Look at me and tell me the truth.(look 是不及物动词,at 是介词,me 是介词宾语)
She studies English with a dictionary.(studies 是及物动词,English 动词宾语;with 是介词,a dictionary 是介词宾语)