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2014最新人教版八年级英语下册各单元语法点汇总
2016-09-02 | 阅:  转:  |  分享 
  
Unit1What’sthematter?

一、??询问某人的健康问运及遭到麻烦的表达方法?

?(1)询问某人患了何种疾病或遇到了何种麻烦时,常用以下几种结构来表达:?

What’s?the?matter?(with?sb.)?(某人)怎么了??

What’s?wrong?(with?sb.)?(某人)怎么了??

What’s?the?trouble?(with?sb.)?(某人)出什么事了??

What?happened?(to?sb.)?(某人)发生了什么事??

Are?you?OK?你没事吧??

Is?there?anything?wrong?with?sb.?某人有什么事吗??

要表达身体疼痛或不舒服,可用以下结构:

?①某人+have/has+病症.?

The?twins?have?colds.双胞胎感冒了。?

(某人+have/has+a+headache/toothache/stomachache/backache/earache.?

She?had?a?stomachache?last?night.她昨晚肚子痛。

?③某人+have/has+a+sore+发病部位.?He?has?a?sore?throat.他喉咙痛。

?④某人+hurt(s)+身体部位或反身代词.?He?hurt?his?leg.他的腿受伤了。

?⑤某部位+hurt(s).?

My?head?hurts?badly.我头痛得厉害。?

⑥某人+have/has+a?pain+in?one’s+身体部位,?I?have?a?pain?in?my?chest.我胸口痛。?

⑦(There?is)something?wrong?with?one’s+身体部位.?

There?is?something?wrong?with?my?right?eye..我的右眼有毛病。

?⑧其他表达方式?

She?has?a?heart?trouble.她有心脏病。?

He?got?hit?on?the?head他头部受到了撞击。?

She?cut?her?finger.她割破手指了。

二??情态动词should的用法?

1.Should为情态动词,意为“应该;应当”,否定式为shouldn’t,其后接动词原形,无人称和数的变化。常用来表示征询意见、建议、劝告、要求或义务等。?You?should?drink?hot?water?with?honey.你应该喝加有蜂蜜的开水。?

He?should?put?his?head?back他应该把头后仰。?

We?should?try?our?best?to?help?him.我们应当尽力去帮助他。?You?shouldn‘t?watch?TV.你不应该看电视。?

2.Should用于主语为第一人称的疑问句,表示征询意见。?Should?I?put?some?medicine?on?it?我应当给它敷上药吗??Should?we?tell?her?about?it?我们应该告诉她这件事吗??

【拓展】在英语中,表示建议的说法有很多,而且都是中考考查的重点。主要结构有:?

①Would?you?like?(to?do)?sth.?你想要/愿意(做)某事吗??

Would?you?like?to?play?basketball?with?me?你想要和我一起打篮球吗?

?②Shall?I/we?do?sth???我/我们做??好吗??

??Shall?we?go?to?the?zoo?tomorrow?明天我们去动物园,好吗??

③Why?not?do?sth??为什么不??呢??

??Why?not?join?us?为什么不加入到我们当中来呢??

④How/What?about?doing?sth??做某事怎么样????How?about?going?swimming?去游泳怎么样??

⑤Let’s?do?sth让我们做??吧。???Let’s?go?home.咱们回家吧。?

⑥You’d?better?(not)?do?sth你最好(不)要做某事。?

??You’d?better?not?go?there?alone.你最好不要一个人去那儿。?

Unit2I''llhelpcleanupthecityparks

动词不定式?

A.?作主语——为避免句子的头重脚轻,常用it作为形式主语,而真正的主语动词不定式后置。?常用句型:It?+be+adj./n.+(for/of?sb.)?to?do?sth./It?takes?sb.?some?time?to?do?sth.?

B.?作宾语——动词want,?decide,?hope,?ask,?agree,?choose,?learn,?plan,?need,?teach,?prepare…常接动词不定式作宾语。

C.?作(后置)定语——常用于“have/has+sth.+to?do”或“enough+名+to?do”“It’s?time?to?do?sth.”等结构中。?

D.?作宾语补足语——tell,?ask,?want,?invite,?teach,?like,?call等可接带to的动词不定式作宾语补足语,构成tell/ask/want?/call/invite?sb.?to?do?sth.结构。?

【注意】动词不定式作使役动词和感官动词的宾语补足语时应省去to:“一感(feel),二听(listen?to,?hear),三让(let,?make,?have,,四看(look?at,?see,?watch,?notice),半帮助(help)”。

?E.?动词不定式作状语?

主要用来修饰动词,表示目的,结果或原因。为了强调目的,有时可以把动词不定式放在句首,或在不定式前加in?order?(to)?或so?as?(to)?“为了,目的是”。常用结构有too?+?adj./adv.?+?to?do?sth.等。

?F.?固定句式中动词不定式的用法?常见的形式有:had?better?(not)?do?sth./Would?you?like?to?do?sth.?/Why?not?do?sth.?/Would?you?please?(not)?do?sth.?等。

Unit3Couldyoupleasecleanyourroom

Could?you?please...?句型?

(1)请求别人时通常用此句型,也可以说:Can?you...please?情态动词could或can在这里均表示请求,在意思上无区别,但是用could在于其上显得更委婉、客气、诚恳。在日常生活中常使用could?you/I...?若在句末加上please,则显得更礼貌。?

??Could?you?help?me?find?my?book,please?你能帮我找到我的书吗??

对could?you/I...?的问句作出肯定回答,常用“sure/certainly/of?course”等;如果作否定回答,常用“sorry或oh,please?don’t”。?一般不用no开头,用no显得语气生硬、不礼貌。?

表示请求的句式:???

Would?you?like?to?do...????Would?you?mind?doing...????Let’s?do....???Shall?I/we?do...??

??Please?do...(祈使句前加please)?

提示:could?you?please...与could?I?Please...两种问句,前者是请求别人帮忙的句式,后者是有礼貌地向别人请求允许的交际用语。试比较:?

Could?you?please?help?me?请你帮我一下好吗??

Could?I?please?invite?my?friends?to?my?birthday?party,Mom??妈妈,?我能邀请我的朋友参加我的生日聚会吗?

Unit4Whydon''tyoutalktoyourparents?

提建议向别人发出邀请,请求,建议,或征求某人的意见的其他表达方式:How?/what?about?doing?sth.?(about是个介词,可跟名词或动名词)“…怎么样?”?

You’d?better?(not)?do?something.“你最好(不)做某事”?

Would?you?like?sth?…?:“你想要某物Let?s?do?sth…??

What?should?I?do?…??(?should表示请求、征询对方意见)?

2.学会谈论问题和学会用why?don''t?you…提建议向别人发出邀请,请求,建议,或征求某人的意见的表达方式:?

Why?don?t?you?do?something??=Why?not?do?something???你为什么不做某事呢??来表示请求、征询对方意见

3.until,?so?that?,although引导的状语从句:

1)until:在带有till或until引导的时间状语从句里,如果主句用肯定式,其含义是“一直到……时”,谓语动词只能用延续性动词。如果主句用否定式,其含义是“直到……才……”,?“在……以前不……”,?谓语动词可用瞬间动词。Don?t?get?off?until?the?bus?stops.?

2)so?that引导目的状语从句(为了,以便)例如:He?studies?hard?so?that?he?could?work?better?in?the?future?

3)although的用法意思相当于though(尽管,虽然),引导让步状语从句。引导的从句不能与并列连词but,and,?so等连用,但可以和yet,?still等词连用。?例如:Although?he?was?tired,?he?went?on?working.尽管他很累,但是他继续工作。?

Unit5Whatwereyoudoingwhentherainstormcame?

过去进行时?

1.?基本概念:过去进行时表示在过去某一时刻或一段时间内正在进行的

动作。这一特定的过去时间除有上下文暗示以外,?一般用时间状语来表示。?

?结构??was?/?were?(?not?)?+?动词-ing??????

?句式???????

?肯定式:?

I/He/She/It?was?working.?We/You/They/?were?working.??

否定式:?

I/He/She/It?was?not?working.?

We/You/They/?were?not?working.???????

??疑问式和简略回答:?

Was?I?working??Yes,?you?were.?No,?you?were?not.?Were?you?working??Yes,?I?was.?No,?I?was?not.?Was?he/she/it?working??Yes,?he/she/it?was.?No,?he/she/it?was?not.?Were?we/you/they?working??Yes,?you/we/they?were.?No,?you/we/they?were?not.?注:?

1)?was?not常缩略为wasn’t;?were?not常缩略为weren’t。?

2)?一般过去时与过去进行时用法的比较:?一般过去时表示在过去某个时间发生过的动作或存在的状态,?而过去进行时则表示在过去某一时刻或某一段时间正在进行的动作。?例如:?

David?wrote?a?letter?to?his?friend?last?night.??大卫昨晚给他的朋友写了封信。(信写完了。)?

David?was?writing?a?letter?to?his?friend?last?night.??大卫昨晚一直在给他的朋友写信。(信不一定写完。)

4.过去进行时中的when和while?

?when,?while?区别:?

?由when引导的时间状语从句,主句用过去进行时,从句应用一般过去时;?由while引导的时间状语从句,主句用一般过去时,从句应用过去进行时。?

When?the?teacher?came?in,?we?were?talking.?

?当此句改变主从句的位置时,则为:??While?we?were?talking,?the?teacher?came?in.??

2)如果从句和主句的动作同时发生,两句都用过去进行时的时候,多用while引导。如:??

They?were?singing?while?we?were?dancing.?

Unit6Anoldmantriedtomovethemountains

1.?unless引导条件状语从句??

?unless?=?if?…?not?―除非,若不??

They?will?go?tomorrow?unless?it?rains.?

=?They?will?go?tomorrow?if?it?doesn’t?rains.?

?as?soon?as引导时间状语从句。?―……就

?He?will?come?and?see?you?as?soon?as?he?can.?

3.?so.......that引导结果状语从句?

句型1:主语+谓语+so+形容词/副词+that从句

The?wind?was?so?strong?that?we?could?hardly?move?forward.?

句型2:?so?+形容词?+?a/an?+?单数名词?+?that从句?

It?was?so?hot?a?day?that?they?all?went?swimming.?

句型3.??so?+?many/?few?+?复数名词?+?that从句?

He?has?so?few?friends?that?he?often?feels?lonely.?

句型4:?so?+much/?little?+?不可数名词?+?that?从句?

?I?had?so?little?money?that?I?couldn’t?buy?a?pen.?

Unit7What’sthehighestmountainintheworld?

形容词副词的原级、比较级和最高级??

(一)原级句型:?

1.?A?is?as+原级+?as+?B?表示A?与B一样…eg:?He?is?as?tall?as?me.

2.A?is?not?as/so?+原级+?as?B表示A不如B…eg:He?is?not?as?tall?as?me.?

3.只能修饰原级的词,very,quite,so,too,so,?enough,?pretty等??

?例如,He?is?too?tired?to?walk?on.他太累了以至于不能再继续走了。?

比较级句型?

可以修饰比较级的词,much,a?lot,far,…的多a?little,a?bit,…一点儿?even甚至,still仍然??????

Eg.?Lesson?One?is?much?easier?than?Lesson?Two.第一课比第二课容易得多。????????

Tom?looks?even?younger?than?before.汤姆甚至比以前更年轻。?

1.当句中有than?时则用比较级。?eg:?He?is?fatter?than?me.?

2.当句子中的比较对象为两者时用比较级:“特殊疑问词+be+形容词比较级,A?or?B?”?

eg:?Which?is?bigger,the?earth?or?the?moon?哪一个大,地球还是月球??

3.?“比较级+and+比较级”表示“越来越……”。?

???eg.The?flowers?are?more?and?more?beautiful.花儿越来越漂亮。?

?加more构成比较级的形容词则用more?and?more?+形容词表示越来越…?

eg:?English?is?more?and?more?important.?

?“the+比较级,the+比较级”表示“越……,越……”。???

Eg.?The?more?careful?you?are,the?fewer?mistakes?you’ll?make.?

“A+be+the+形容词比较级+of?the?two+……”表示“A是两者中较……的”。????

Eg.Look?at?the?two?boys.?My?brother?is?the?taller?of?the?two.?

A+be+形容词比较级+than+any?other+单数名词(+介词短语)”???表示“A比同一范围的任何一个人/物都……”,含义是“A最……”。????

Eg.?The?Yangtze?River?is?longer?than?any?other?river?in?China.?

=The?Yangtze?River?is?the?longest?river?in?China.?

(三)最高级常用句型结构?

1.“主语+be+the+形容词最高级+单数名词+in/of短语”表示“……是……中最……的”。?

??eg:Tom?is?the?tallest?in?his?class./of?all?the?students.???

This?apple?is?the?biggest?of?the?five.?

2.“主语+be+one?of?the+形容词最高级+复数名词+in/of短语”表示“……是……中最……之一”。?

Eg:Beijing?is?one?of?the?largest?cities?in?China.?

“特殊疑问词+be+the+最高级+A,B,or?C?”用于三者以上?

eg?Which?is?the?biggest??The?moon,the?sun?or?ths?earth??

“the?+序数词+最高级+单数名词+范围”。表示…是第几大(…)

?eg:?The?Yellow?River?is?the?second?longest?river?in?China?.?

【注意】形容词最高级之前要加the,但当最高级之前有形容词性物主代词或名词所有格时则不用加the??

eg:?He?is?the?best?student?in?my?class.???He?is?my?best?friend.?

形容词副词的规则与不规则变化???

规则变化??

?1.一般在词尾直接加er或est,例如,tall-taller-tallest,long-longer-longest???

以不发音的字母e结尾的单词在词尾直接加r或st,例如,nice-nicer-nicest???

3.以辅音字母+y结尾的词,把y变为i,再加er或est,例如,

heavy-heavier-heaviest?

4.重读闭音节,末尾只有一个辅音字母,双写这个辅音字母,再加er或est,

eg.?big-bigger-biggest?

部分双音节词和多音节词分别在原级前加more构成比较级和most构成最高级,例如,slowly-more?slowly-most?slowly;beautiful-?more?beautiful-most?beautiful

不规则变化

原级 ?比较级 ?最高级 good/well? better? best? bad/badly/ill? worse ?worst many/much? more? most little less? least? far? farther? farthest? further? furthest old?? older ?Oldest(无血缘关系的) elder? eldest(有血缘关系)

?Unit8HaveyoureadTreasureIslandyet?

Unit9Haveyoueverbeentoamuseum?

现在完成时?(Present?Perfect?Tense)?

(1)表示过去发生或已经完成的动作对现在造成的影响或结果。?

—It’s?so?dark.?太黑了。?

—Someone?has?turned?off?the?light.?有人把灯关上了。?

(2)表示从过去某一时间开始并一直持续到现在的动作或状态。?

常与since+过去的时间点,for+一段时间,since+时间段+ego,?so?far等时间状语连用。?

Eg.?I?have?lived?here?for?ten?years.我已经住在这里10年了。(从10年前开始,持续到现在还住这儿)?

Eg.?I?have?lived?here?since?2003.?自从2003年我就住在这儿。(从2003年开始,持续到现在还住这儿)?

(3)?基本结构及句型转换:主语+have/has+过去分词(done)??(当主语是第三人称单数has,其余人称用have。)??

①肯定句:主语+have/has+过去分词+其他??I?have?finished?my?homework.?(肯定句)?

②否定句:主语+have/has+not+过去分词+其他?I?have?not?finished?my?homework.?(否定句)

③一般疑问句:Have/Has+主语+过去分词+其他?

—Have?you?finished?your?homework??

—Yes,?I?have.?/?No,?I?haven’t,?(一般疑问句及肯定、否定回答)?

(4)has?gone?(to),?has?been?(to),??has?been?(in)?的区别?

??Have/Has?gone(to)?:去了(现在不在说话现场)

?Eg.?---Where?is?your?father??

---He?has?gone?to?Shanghai.??

??Have/Has?been?(to)?:去过(已不在去过的地方)?

Eg.?My?father?has?been?to?Shanghai.??

??Have/has?been?in:呆了多久(还在所呆的地方)?

Eg.?My?father?has?been?in?Shanghai?for?two?months.??=My?father?has?been?in?Shanghai?since?two?months?ago.?

(5)现在完成时的标志:?

①常与just,?already,?yet,?ever,?never,?before,?so?far?等连用,强调动作的完成,不强调动作的持续。?

Have?you?ever?been?to?Japan??I?have?just?finished?my?homework.?

②for?+?时间段;since?+?过去的时间点;since?+?段时间?ago;since?+?一般过去时的句子。?

They?have?known?each?other?for?five?years.?Since?he?was?a?child,?he?has?lived?in?England.

动词过去式和过去分词的变化

?规则变化:??1.?一般在动词词尾直接加ed。如:pick?→?picked?→?picked;??wish?→?wished?→?wished;??stay?→?stayed?→?stayed??

2.?以不发音的e结尾的动词后面加d。如:like?→?liked?→?liked;??hope?→?hoped?→?hoped;?phone?→?phoned?→?phoned??

3.?以―辅音字母?+?y‖结尾的动词,变y为i,再加-ed。如:study?→?studied?→?studied;??hurry?→?hurried?→?hurried;?reply?→?replied?→?replied?

4.?词尾只有一个辅音字母的重读闭音节动词,要双写辅音字母,再加-ed。如:stop?→?stopped?→?stopped;?clap?→?clapped?→?clapped

?不规则变化:??

?以不变应万变。如:let?→?let?→?let;?put?→?put?→?put;?read?→?read?→?read?

6.?若中间有双写e,则去掉一个e,单词末尾再加t。如:?

feel?→?felt?→?felt;?keep?→?kept?→?kept;?sleep?→?slept?→?slept??

7.?结尾的字母d变t。如:lend?→?lent?→?lent;??build?→?built?→?built;?send?→?sent?→?sent??

8.?变为以-ought或-aught结尾。如:buy?→?bought?→?bought;?

?bring?→?brought?→?brought;?catch?→?caught?→?caught;?teach?→?taught?→?taught

Unit10I''vehadthisbikeforthreeyears.

短暂性动词(buy,?die,?join,?finish等)不能直接与for,?since?连用,?需要改变动词。????

begin(start)--be?on

2)?open--be?open?

become--be

die--be?dead?

?fall?asleep--?be?asleep??

close?--?be?closed?

end/?finish---be?over???

?put?on--wear?

leave--?be?away(from)??

catch?a?cold--have?a?cold?

join?the?army--in?the?army/be?a?soldier??

borrow---keep?

join?the?party--?be?in?the?party/?be?a?party?member??

?buy---have?

15)come/go/?arrive/reach/get?/move?to?---be?in?/at

总结:1.现在完成时表示过去发生的动作对现在造成的影响和结果;?

还可以表示过去发生的动作,一直持续到现在,也有可能持续下去.?

3..一般情况下,for+时间段;?since+过去的时间点;since?+?段时间?ago;since?+?一般过去时的句子

4.句型:现在完成时态(have/has+延续性动词的过去分词)+?for/?since...











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