中考的重要性不言而喻。要想在中考中决胜,在复习过程中抓住核心考点是关键要素之一。下面小编给你分享2017年中考英语常考知识点，欢迎阅读。

2017年中考英语常考词性变换规则知识点

一、可数名词单数变复数类

1.规则变化:

(1)一般情况加-s, 如: girls, books, pens, bags, boys, days等。

(2)以s, x, ch, sh结尾加-es, 如: buses, boxes, watches, brushes

(3)以o结尾的名词，无生命的名词多加-s，有生命的名词多加-es。

(4)以辅音字母加y结尾的名词, 变y为i加-es, 如: city→ cities, story→stories

(5)以f或fe结尾的名词变f或fe为v加-es。如: leaf→leaves, knife→knives, shelf→shelves，wife→ wives等。

2.不规则变化的名词要熟记：

man→men, woman→women, child→children,

foot→feet，tooth→teeth, mouse→mice, people→people,

sheep→ sheep, Chinese→Chinese，Japanese→Japanese，deer→deer

二、动词/名词变形容词类

1.在动词后加后缀-ful

如：care→careful ，use→useful;

thank→thankful，help→helpful;

wonder→wonderful，forget→forgetful

2.在名词后加-y

如：luck→lucky， cloud→cloudy;

wind→windy， rain→rainy;

sun→sunny, snow→snowy

noise-noisy，health→healthy

3.在名词后加-ly

如：friend→friendly，love→lovely，day→daily

4.方位名词加-ern

如：east→eastern，west→western

south→southern，north→northern

三、形容词加后缀变成名词

1.形容词加-ty变成名词

如：safe→safety，difficult→difficulty

2.形容词加-th变成名词

如：true→truth，warm→warmth，young→youth

四、形容词变副词类

形容词修饰名词、代词等作定语或表语;副词修饰动词、形容词或副词作状语。

1.一般形容词词尾加-ly变成副词，

如：slow→slowly， clear→clearly

quick→quickly， quiet→quietly

careful→carefully， sudden→suddenly

real→really， polite→politely

safe→safely，wide→widely

2.以“辅音字母+y”结尾的，要变y为i加-ly

如：easy→easily，happy→happily

heavy→heavily， lucky→luckily

busy→busily，angry→angrily;

3.以元音字母+e结尾，去e加-ly

如：true→truly

4.以辅音字母加-le结尾，去e加-y

如：terrible→terriblypossible→possibly

5.形容词与副词同形

如：fast→fast，early→early，high→high，hard→hard

6.注意：hard作形容词时意思是“困难的;硬的;生硬的”等;作副词时意思是“努力地”。hardly是否定副词，意思是“几乎不”。

五、动词变名词类

1.动词加-er变成名词

如：work→workerfarm→farmerteach→teacher

sing→singerspeak→speakerplay→player

read→readerdrive→driverwrite→writer

ride→riderdance→dancer run→runner

win→winner cook→cooker travel→traveler

2.动词加-or 变成名词

如：visit→visitor，invent→inventor，conduct→conductor，act→ actor

六、基数词变序数词类：

主要掌握好1---12和20、30、40、50、60、70、80、90及21、22、23这几个序数词的形式：

one→first twenty→twentieth

two→ second thirty →thirtieth

three→third forty →fortieth

four→ fourth fifty →fiftieth

five → fifth sixty →sixtieth

six→ sixth seventy →seventieth

seven→ seventh eighty →eightieth

eight→ eighth ninety →ninetieth

nine→ninth

ten→ tenth

eleven→ eleventh

twelve→twelfth

twenty-one →twenty-first

twenty-two →twenty-second

twenty-three →twenty-third

七、形容词与副词的原级、比较级和最高级类

1.形容词和副词的比较级、最高级构成

部分双音节词或以形容词加-ly变成的副词和多音节词，在其前加more, most 变成比较级和最高级。

如：interesting → more interesting，→ most interesting

beautiful → more beautiful，→ most beautiful

slowly → more slowly，→ most slowly

quickly → more quickly，→ most quickly

不规则变化：

good→better→best well→better→best

many→more→most much→more→most

little→less→least

far→farther/further → farthest/furthest

ill → worse → worst

bad/badly → worse → worst

old → older/elder → oldest/eldest

2.原级： as+adj./adv.+ as … (肯定)

“和 ……一样……”，

not as / so+adj./adv.+as …(否定)

“和 ……不一样……” “…… 不如……”

八、常见的反义词：

1.动词

buy — selltake — bring

remember — forget die — live

love — hate rise — fall

ask — answer start — finish

miss — catch pull — push

go — come end — borrow

2.形容词

little — much short — tall / long

free — busy full — empty

few — many good — bad

white — blackcareful—careless

dead — living cheap — expensive

clean — dirty easy — difficult

wet — dry same — different

open — closed strong —weak

light— heavy