adv的五种用法分别是什么？

一、原级比较的基本用法

1.原级比较由“as+形容词或副词(或再加名词或短语)+as ”构成“原级相同”比较句,表示两者比较；其否定式,即“程度不及”比较句型为“not so(as) +形容词或副词+as”,而且as…as结构前可用just,almost,nearly,quite等表示程度的词修饰

1) Walking briskly for thirty minutes will burn as many calories as .

〔A〕 to run for fifteen minutes

〔B〕 running for fifteen minutes

〔C〕 you run for fifteen minutes

〔D〕 fifteen?minute walking

2) The gorilla(大猩猩),while 〔A〕 not quite as curious than 〔B〕 the chimpanzee(黑猩猩),shows more persistence 〔C〕 and memory retention(记忆力) in solving 〔D〕 a problem.

3) Alaska is twice 〔A〕 as larger 〔B〕 as 〔C〕 the next largest 〔D〕 state,Texas.

2.“as (so)+名词+as+名词”进行名词比较,这时一般情况下有一个表示原级的比较词,但如果第一名词前出现了形容词修饰该词或出现副词修饰谓语,应当用so而不用as

4) Thomas Jefferson’s achievements as an architect rival his contributions a politician.

〔A〕 such

〔B〕 more

〔C〕 as

〔D〕 than

5) I should say Henry is not much a writer as a reporter.(88年考题)

〔A〕 that

〔B〕 so

〔C〕 this

〔D〕 as

二、比较级

1.比较级由“形容词(副词)比较级+than+…,”构成表示在两者中间一方比另一方“更加…”.连词than后可接句子,也可接名词、代词、名词短语、介词短语、动词、动词不定式、?ING结构和?ED结构,有时也可省去than.

6) Natural mica(云母) of 〔A〕 a superior 〔B〕 quality is cheapest 〔C〕 to obtain than synthetic 〔D〕 mica.

7) She is older than .

〔A〕 any other girl in the group

〔B〕 any girl in the group

〔C〕 all girls in the group

〔D〕 you and me as well as the group

8) Josephine McCrackin joined 〔A〕 the “Santa Cruz Sentinel” in 1905 and,until her death fifteen years late 〔B〕 ,remained 〔C〕 active in journalistic 〔D〕 work.

2.注意than前后两项相比较的人或事物要一致

9) The purpose of the research had a more important meaning for them than .

〔A〕 ours

〔B〕 with us

〔C〕 for ours it had

〔D〕 it did for us

10) Sound travels air.

〔A〕 faster through water than through 〔B〕 faster than through water and

〔C〕 through water faster and〔D〕 where it is faster through water than through

11) Gerbrand von den Feckhout,one of Rembrand’s pupils,followed 〔A〕 the style of his teacher so implicitly that 〔B〕 his paintings 〔C〕 are sometimes confused with his master 〔D〕 .

三、最高级

1.最高级用于三者以上比较,形容词的结构形式是“定冠词+形容词最高级+名词+表示范围的短语或从句”(如all,of all,of the tree,in the world,that has ever taken place等)

12) The more 〔A〕 fearsome of all the 〔B〕 animals in 〔C〕 the Western 〔D〕 Hemisphere is the grizzly bear.

13) Of all economic 〔A〕 problems,inflation continues to be 〔B〕 a 〔C〕 most significant in its daily impact on 〔D〕 people and business.

14) ,the most familiar to general public is the criminal jurisdiction.

〔A〕 All the activities

〔B〕 The activities

〔C〕 Of all the activities

〔D〕 It is the activities

2.副词的最高级与形容词最高级的区别在于最高级前没有定冠词the

6两种形式

编辑

1) close与closely

close意思是"近"； closely 意思是"仔细地"

He is sitting close to me.

Watch him closely.

2) late 与lately

late意思是"晚"； lately 意思是"最近"

You have e too late.

What have you been doing lately?

3) deep与deeply

deep意思是"深",表示空间深度；deeply时常表示感情上的深度,"深深地"

He pushed the stick deep into the mud.

Even father was deeply moved by the film.

4) high与highly

high表示空间高度；highly表示程度,相当于much

The plane was flying high.

I think highly of your opinion.

5) wide与widely

wide表示空间宽度；widely意思是"广泛地","在许多地方"

He opened the door wide.

English is widely used in the world.

6) free与freely

free的意思是"免费"；freely 的意思是"无限制地"

You can eat free in my restaurant whenever you like.

You may speak freely; say what you like.

副词有加a或ly的 区别在于通常加a 的副词描述一种状态,而加ly 的副词则倾向于感觉.,3,

说的这些都是表示单词词性的，adv.表示 副词adj.表示 形容词你说的及物动词和不及物动词用 vt. 和 vi 表示v. 表示 动词a. 是 adj. 的一种简略写法，也是表示 形容词ad.是 adv. 的简略写法，表示 副词。

词性标注（Part-Of-Speech tagging, POS tagging）也被称为语法标注（grammatical tagging）或词类消疑（word-category disambiguation），是语料库语言学（corpus linguistics）中将语料库内单词的词性按其含义和上下文内容进行标记的文本数据处理技术。

词性标注可以由人工或特定算法完成，使用机器学习（machine learning）方法实现词性标注是自然语言处理（Natural Language Processing, NLP）的研究内容。常见的词性标注算法包括隐马尔可夫模型（Hidden Markov Model, HMM）、条件随机场（Conditional random fields, CRFs）等。

词性标注主要被应用于文本挖掘（text mining）和NLP领域，是各类基于文本的机器学习任务，例如语义分析（semantic analysis）和指代消解（coreference resolution）的预处理步骤。

词性标注是随着语料库的建立而提出的，在其发展初期是语料库中语法分析器（parser）的组件之一，词性标注的早期工作包括宾夕法尼亚大学（University of Pennsylvania）TDAP（Transformations and Discourse Analysis Project）项目中的语法结构模型? 。

1971年，Barbara B. Greene和Gerald M. Rubin以Klein and Simmons (1963)为基础开发了词性标注系统TAGGIT，并首次对大规模词库Brown Corpus进行了词性标注。

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