conscious是形容词，意思是“有意识的；意识清醒的；意识到；了解的；谨慎的”。

其名词是consciousness 意思是“意识；知觉；觉悟；感觉”。conscious通常与be连用，构beconsciousof……和beconscious that……,相当于动词，意思是“意识到……，注意到……”，例如；I'm very conscious of my weight.我很在意自己的体重。He was conscious of a clock ticking.他意识到了时间正在消逝。She's very conscious of the problems involved.她完全意识到了所涉及的问题。He was conscious that he was talking rather too much.他意识到他说得实在太多了。I was vaguely conscious that I was being watched.我隐隐约约地觉察到有人在监视我。