look当名词看讲时可不可数？可数时怎么用？举个例子

1. look当名词时是可数名词，但是一般只用单数形式。
如：Have a look at this book.
看看这本书。
Have a look at this picture.
看看这张照片。
an angry look
愤怒的神情
A serious look passed over his face.
他脸上显出一副严肃的神色。
3. 其复数形式looks有其特殊含义，意思是“外表，外貌”（=appearance）。
如：The famous actor kept his good looks even in old age.
"这位著名的演员即使年老了,他仍保持着好看的容貌。"
Good looks are not as important as kindness.
好的容貌没有好的心肠重要。

是可数名词·

有一个固定搭配 have a look at

可数的。例子如口上所说

只是固定搭配而已Have a look
但名词来讲，没有looks
学英语灵活一点