consist of=be made up of 由…组成
The book consists of five chapters. =The book is made up of five chapters.这本书总共五章。
consist in=lie in 在于，存在于
consist with=be consistent with与…一致
Life mainly consists of happiness and sorrow while happiness and sorrow consists in struggle. Remember that your ideal life does not always consists with reality.
The teacher divided our class into eight groups.
It is extremely cruel to divide a mother from her child.
divide sth between/among sb把某物分配给某人
He divided the money among the children.
divide A by B: A除以B，用B除A
30 by 6 is 5. 30除以6等于5.
Her credit is not as good as before anymore.她现在的信用不咋好。
a credit card信用卡
He is player who hardly get the credit he deserves.
We did all the hard work and he take all the credit.
I bought the new computer on credit.