He is as handsome as David is handsome.
Heis as handsome as David.
Heis as prudent as David is, who is one of my favorite friends.
He is as prudent as is David, who is one ofmy favorite friends.
He is more prudent than David is, who isone of my favorite friends.
He is more prudent than is David, who isone of my favorite friends.
2.3 “as…as…”可以用于肯定或否定句景观艺术设计留学， “so…as…”则只能用于否定句
He is as polite as David.
He is not as polite as David.
He is not so polite as David.
1) as…as possible = as…as one can，即“尽可能地…”
You must work as hard as you can work hard. =
You must work as hard as you can.
同理：as possible为asit is/was possible简化而成，it是代词景观艺术设计留学，代替前面相同的部分。
Youmust work as hard as it is possible. =
Youmust work as hard as working hard is possible. =
Youmust work as hard as possible.
2）as…as any 与任何人一样
Heis as happy a man as any. =
Heis as happy a man as any is happy.
3）as…as ever 与往常一样
Sheis as young as ever. =
Sheis as young as she was young ever.