as句型解析第一个as为副词，第二个as为连词（介词）。但在实际应用中，此结构在不同的语境中含义差异较大。
29. In 2030, you will see Beijing as beautiful as a garden, with cleaner water and clearer sky.
到2030年，我们会看到北京像花园一样，有着更加清澈的河水和碧透的天空。
经典常考as……as句型解析
第一个as为副词，第二个as为连词（介词）。
一、“as(否定句中可用so)＋adj．／adv．＋as…”，其基本意思为“……和……一样”。但在实际应用中，此结构在不同的语境中含义差异较大。 1、表示不同人或物同一性质的比较，意为“……和……一样……"。
You're as tall as your father.
你和你父亲一样高。
She doesn't play as well as her sister.
她演奏得不如她姐姐。
He doesn't earn as much as me.
他挣的钱比我少。
It's not as hard as I thought.
这没有我想象的那么困难。
It wasn't so good as last time.
这次不如上次好。
The book wasn't anything like as good as her first one.
这本书远远不如她的处女作。
The tree is as tall as the building(is)． 这棵树和那栋楼一样高。 Michael is as bright as George(is)． 迈克尔和乔治一样聪明。
第二个as后面用主格或宾格含义差别很大：
You love him as much as I (=as I love him). 你爱他像我爱他一样。
You love him as much as me (=as you love me). 你爱他像爱我一样。
她和她妈妈一样是位好厨师。
正：She is a cook as good as her mother.
正：She is as good a cook as her mother.
误：She is as a good cook as her mother.
2、表示同一个人或物不同性质的比较，意为“既……又……”
He was as white as a sheet.
他面无血色。
Alice works as happily as(she)plays(happily)． 艾丽丝愉快地工作，尽情地玩。 Danny is not so wise as he is witty． 丹尼为人风趣，但欠明智。 It wasn't quite as simple as I thought it would be.
这事不完全像我想的那么简单。
This swimming pool is as wide as it is long.
这个游泳池宽度和长度相等。
3、用于表示两个人或物不同性质的比较，表示程度相同或相当，意为“……而……”。 He was as handsome as his wife was beautiful． 他长得非常英俊，他的妻子也长得非常漂亮。 He was as experienced as his brother was green． 他经验丰富，而他兄弟却涉世未深。 二、as…as结构的另一种形式是“as much／many＋名词＋as＋从句”。
Mary has written as many essays as her brother． 玛丽写的文章篇数和她弟弟一样多。 It is as much your fault as your wife’s． 这既是你的过错，也是你妻子的过错。 Henry is as much a hypocrite as·John． 亨利跟约翰一样是个伪君子。 涉及数量或程度，可用“as much 不可数名词 as”和“as many 可数名词复数 as”
He doesn’t pay as much tax as we do / as us. 他没我们交的税款多。
There are not as many restaurants as there were. 现在餐馆没有过去多了。
“as long / much as名词”可以表示“长达/多达…”的含义。
如：
The car cost as much as one million.
这辆车花费高达一百万。
He has been on the island as long as 15 years.
他在这个岛上呆了长达15年。
三、若有修饰成分，如twice，three times，half，a quaer等，必须置于第一个as之前。 You are not half as clever as you think you are．你可不像自己想象的那么聪明。 She isn’t going out with a man who is twice as old as she． 她不打算和一个比她大一倍的人出去散步。 You’ve made just as many mistakes as I have． 我和你犯的错误一样多。 We’ve produced twice as much cotton this year as we did lastyear. 我们今年的棉花产量是去年的两倍。 修饰as…as结构的常见词语有nearly, almost, just, exactly, half, quite, twice, three times等，请注意这些修饰语都只能放在as…as 结构之前 (而不能置于其中或其后。如：
I earn half as much as you do. 我只赚你的一半钱。
This rope is twice as long as that one. 这根绳子比那根长一倍。
四、as…as结构的另一变体形式是“as＋形容词原级＋名词词组＋as” I don't want as expensive a car as this.＝I don't want a car as expensive as this． 我不要这么贵的汽车。 Tony is as clever a boy as his brother． 托尼是一个和他兄弟一样聪明的男孩。 五、当as…as与表示重量、数量、时间、距离、价格等的计量名词连用时。往往并不表示比较。而是构成一个形容词组，意为“重达……，多达……，高达……”等。 The river is as deep as 10 meters． 这条河深达10米。 Frosts often occur as late as May． 往往到5月份还有霜。 六、“as 原级 as any(或ever)”、“as 原级 as…can be”、“nothing(或no)＋so＋原级＋as…”等结构表达的是最高级意义。即在某种程度上或某方面达到极限或最大限度。 He is as great a mathematician as any． 他是一位非常杰出的数学家。 He is as happy as happy can be． 他幸福无比。 No one is so deaf as those who won’t listen． 最聋者莫过于不听劝说的人。 七、as…as…不表示比较的几个常见句型。 1．as…as possible／sb can尽可能的…… Please answer my question as soon as possible． 请尽快回答我的问题。 The detective is searching the man as carefully as he can． 那个侦探正在尽可能仔细地搜查那个男子的身体。 As soon as he saw the monster, Jack ran away as quickly as possible.
Jack 一看到妖怪，就以最快的速度跑开了。
2．as…as usual／before像以前一样…… She looks as pretty as before． 她看起来和以前一样漂亮 Though they failed，they still worked as hard as usual． 尽管他们失败了，但他们仍像以前一样努力工作。 3．as long as只要，引导条件状语从句 I will stay with you as long as there is a room flree． 要是你有一间空余的房子，我就住在你这里。 You may borrow this book as long as you promise to give itback． 只要你答应归还，你就可以把这书借走。
4. “as long / much as名词”可以表示“长达/多达…”的含义。
如：
The car cost as much as one million.
这辆车花费高达一百万。
He has been on the island as long as 25 years.
他在这个岛上呆了长达25年。
5. as well as…( 同.....一样 )，注意这个结构连接两个并列主语，谓语动词和前面那个一致。【考点、难点】
Sam as well as I hasmuch work to do.
Sam和我一样，有很多工作要做。（表达的重点在 Sam）
还有一个有意思的地方，as well as 可以连接主语，也可以连接宾语。
He invited you as well as I. I 是主格，所以是和 He 并列的，所以这句话是说：
他和我都邀请了你。
He invited you as well as me. me 是个宾格代词，只能是和 you 并列了：
他不但邀请了你，还邀请了我。
6. as soon as…一旦…就…不要死记某些规则，这个结构不仅仅有“主将从现”，请看：
As soon as he got in the yard, his little son ran up to him.
他一走进院子，他的小儿子就朝他跑过来。
As soon as I came back, I began to make some meat pies.
我一回来，就开始做肉馅饼。
I will tell him the news as soon as she comes. （只有这句主将从现）
他一到，我就告诉她这个消息。
带有as...as结构的常见短语归纳：
as busy as a bee像蜜蜂一样忙碌
as easy as ABC像ABC一样容易
as deep as a well像井一样深
as light as a feather像羽毛一样轻
as soft as butter像黄油一样软
as rich as a Jew像犹太人一样富裕
本人所有文章整理灵感均来自网络和辅导自己孩子心得，不图名，不图利，喜欢就多看看，不喜欢划走。
