Question

look happy 还是look happily

RT/

Answer 1

look happy
这里look是表感官的系动词（相当于系动词be),这类词叫做半系动词。
半系动词后可用名词、不定式、分词和形容词等作表语，这类词有：
1.表感观的系动词：look, sound, taste, smell, feel（这些词用形容词作表语）
2.表似乎的系动词seem, appear
3.表变化的系动词：become, get, turn, grow, make, come, go, fall, run
4.表依旧的系动词：remain, keep, stay, continue, stand, rest, lie, hold
5.可带名词作表语的系动词：become, make, look, sound, fall, prove, remain, turn（该词后接的单数名词前多不用冠词。如：He turned teacher.）

Answer 2

look happy
这里look是表感官的系动词（相当于系动词be),这类词叫做半系动词。
半系动词后可用名词、不定式、分词和形容词等作表语，这类词有：
1.表感观的系动词：look, sound, taste, smell, feel（这些词用形容词作表语）
2.表似乎的系动词seem, appear
3.表变化的系动词：become, get, turn, grow, make, come, go, fall, run
4.表依旧的系动词：remain, keep, stay, continue, stand, rest, lie, hold
5.可带名词作表语的系动词：become, make, look, sound, fall, prove, remain, turn（该词后接的单数名词前多不用冠词。如：He turned teacher.）

Answer 3

你最好把上下文发上来

look如果是做系动词，后面跟形容词，解释看上去怎么样

如果是实义动词，解释成怎么样地看的话，后面就是跟副词

Answer 4

look后没有at用形，有的用副词

Answer 5

look happy

look系动词加形容词