This year my father is twice my age.这个表示倍数的结构为什么不加as,即This year my father is twice asmy age.

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Thisyearmyfatheristwicemyage.这个表示倍数的结构为什么不加as,即Thisyearmyfatheristwiceasmyage.Thisyearmyfatheristwic

This year my father is twice my age.这个表示倍数的结构为什么不加as,即This year my father is twice asmy age.
This year my father is twice my age.
这个表示倍数的结构为什么不加as,即This year my father is twice as
my age.

This year my father is twice my age.这个表示倍数的结构为什么不加as,即This year my father is twice asmy age.
as
副词 ad.
1.跟...一样地,同样地
Sam is as rich as Alexander.
山姆像亚历山大一样富有.
2.如同;例如
Such animals as foxes and squirrels have bushy tails.
有些动物,如狐和松鼠,有蓬松的尾巴.
介词 prep.
1.作为,以...的身份
She works as an interpreter in that company.
她在该公司里担任翻译员.
2.当作
She didn't think much of him as a painter.
她对他作为一位画家评价不高.
3.像;如同
The old woman was dressed as a young lady.
这位老妇人打扮得像一位年轻人.
连接词 conj.
1.像...一样;依照;像
You ought to do as Paul tells you.
你应按照保罗吩咐的做.
The work is not so difficult as you imagine.
这工作不像你想像的那么困难.
2.当...时
As she left the room she remembered that book.
她离开房间时想起了那本书.
3.随着
As the sun rose the fog dispersed.
太阳一出来,雾随之消失.
4.因为
We didn't know what to do as we were just visiting there.
我们不知道该怎么办,因为当时我们仅仅在那里作访问.
5.虽然
Tired as he was,he sat up late.
他虽然疲倦,可仍然很晚才睡.
代词 pron.
1.(与such,the same,as等连用,引导关系从句)与...相同的事物(或人)
He has earned as much money as I have.
他赚的钱和我赚的一样多.
She felt just the same as he did.
她和他的感受相同.
There is a general rise in prices such as occurred in the late 60's.
物价普遍上涨,跟六十年代末一样.
2.(引导从句,对前述内容作补充)本情况,该事实
She has married again,as was expected.
她已再婚,这是意料中的事.
We are tired,as anyone can see.
我们累了,这是有目共睹的.
此处的as表示倍数关系,只要一个就可以了

如果加as,就是This year my father is twice as old as me.如果是你的翻译，as是介词，当“作为...”讲了。

It is my father's s__ __ birthday this year. My father goes to a night c____ this year.填空 my father d____the car to work last year.but this year he walks every day This year my father is twice my age.这个表示倍数的结构为什么不加as,即This year my father is twice asmy age. this _____ my father It is my father's s__ __ birthday this year.（填空题） This spent me one year to write a book about my father能这样用吗帮我变成同义句There is much rain this year.It__ very___this year.My father is working.My father is___ ___.改为同义句,会有追分的! China my father's consent.This year no time to,Maybe next year it .可以帮我翻译吗? my father s( )smoking last year My father is ( ) 35 this year.A.years old B.old c.old years D.不选 My father would have a () summer holiday this year 1 wo months 2 wo month 3 wo-months4 wo-month my father ___(bye)me this dinosaur toy last year.(用buy的正确形式填空） This is my father and my mother my father stoped somking last year同义句 my father— ——smoking lst year The man in p____ u____ is my father and he d___ his car slowly last year but this year he d___ q___ this is my father .my father 画线,并提问. The most beloved of my father,this day last year,never left me.Leaving my mother and Dependence!告诉我这段话的意思.