Without air, there would be no life.
2. not…but…不是…而是…连接并列状语
eg: In the past three years, he did not study for his doctoral degree, but worked to support his family.
3. not 用在代词all, both, every(thing,body)和副词always, necessarily, quite, altogether等词之前,表示部分否定.
Eg: I don’t know both of them.
Both they are not here.
All men are not honest.
Not everybody like reading.
4. It+takes+somebody(宾格)+时间(金钱,等)+to do 花费时间,金钱等去做某事。
Eg: It took him five minutes to solve the problem.
It takes many hands to do the work.
It took me 150 dollars to buy this coat.