初中英语知识点 语法时态

发布 2021-05-11 14:05:28 阅读 7843

精选公文范文。

初中英语知识点:语。

法时态。各位读友大家好,此文档由网络收集而来,欢迎您**,谢谢。

语法:直接引语变间接引语。直接引用别人的话叫直接引语,用来转述别人的话叫间接引语。例:

hesaid,“hewillgotobeijingtomorrow.”

hesaidthathewouldgotobeijingthe next day.

直接引语变间接引语时时态、人称及一些时间或个别词都要做相应的改变。

时态:一般现在时→一般过去时一般将来时→过去将来时。

现在进行时→过去进行时一般过去时→过去完成时。

现在完成时→过去完成时。

但真理性的句子时态不变。例精选公文范文。

精选公文范文。

he said: “the sun rises in the east.”he said that the sun rises in the east.

他说太阳从东方升起。②时间:

now→then,lastmonth→themonthbefore.

today→thatday,threedaysago→three days before.

tonight→thatnight,tomorrow→thenext day.

yesterday→thedaybefore,thedayafter tomorrow→in two days.③其它变化:

this→that these→those here→therecome→go句式的改变:

直接引语是陈述句加”that”可以省去。例:

hesaid,“mysisterwasherethreedays ago.”→

he said that his sister had been therethree days before.

精选公文范文。

精选公文范文。

直接引语是一般疑问句,变成用if/whether引导的宾语从句,人称时态等作相应改变。

mother asked me,“did you buy anymeat for lunch?”→

motheraskedmeif/whetherihadbought some meat for lunch.

直接引语是特殊问句,变成由原来疑问词一样的连接词引导的宾语从句,时态人称等作相应改变。例:”what do you do?

” he asked asked me what i did.

直接引语是选择问句变成由whether或if引导的宾语从句。

doyoulikeenglishorchinese?”he asked me.

he asked me whether i liked englishor chinese.

语法:被动语态。

1.英语中动词有两种语态:主动语态和被动语态。

主动语态表示主语是谓语动词动作精选公文范文。

精选公文范文。

的执行者,被动语态表示主语是谓语动词动作的承受者。

当我们强调谁是某个动作的执行者,即”谁做了某种事情”时,用主动语态。

eg: daniel bought a new computer丹尼尔买了一台新电脑。

如果主语不是动作的执行者,而是动作的承受者时,就是被动语态。

eg:anewcomputerwasboughtbydaniel一台新电脑被丹尼尔买了。被动语态的谓语由be+动词的过去分词构成,其中be是助动词,随时态改变。

一般现在时的被动语态由”am/is/are+动词的过去分词”构成。

一般过去时的被动语态由”was/were+动词的过去分词”构成。2.被动语态的用法:

当不知道或没必要说明动作的执行者时,用被动语态。

eg: rice is grown in south china.华精选公文范文。

精选公文范文。

南种植水稻。

thisbridgewasbuilt100yearsago.这座桥是100年前建的。passivevoice with ‘by’

在被动语态中,如果我们也要把动作的执行者表达出来的话,我们就在被动句子的后面,用“by+动作的执行者”来表示。

jack broke the window.

thewindowwasbrokenbyjack.窗户是被杰克打碎的。

mealsarecookedbyhermotherathome.在家饭是她母亲烧的。

the book was written by him severalyears ago.这本书是他几年前写的。3.难点:

1).当一个含有复合宾语的句子变为被动语态时,只能把宾语变为被动语态的主语,宾补还放在原来的位置。wecallhimxiaowang.

--heiscalled xiao wang.

he cut his hair short.--his hair was精选公文范文。

精选公文范文。

cut short.

2).带双宾语的动词变为被动语态时,常常把间接宾语变为被动语态的主语;如果直接宾语变为被动语态的主语时,间接宾语前要加介词to或for.

someoneg**etheboyanapple.--the boy was given an apple.

an apple was given to the boy.

hismotherboughtapresentforhim.--he was bought a present was bought for him.

3).在let,hear,watch,see,help,h**e等词的句子中,主动语态不加to,被动语态要加to.

the boss makes us work 12 hours aday.--wearemadetowork12hoursaday.

theyheardthechildrensingthatmorning.--thechildrenwereheardtosing that morning.

直接引语是祈使句,根据说话语气变成ask/tell/order warn sb. to do sth.的精选公文范文。

精选公文范文。

结构。例:she said to me, “stand up.”→she asked me to stand up.

fathersaidtohisson,“don’tplayfootball in the street.”→

fathertoldhissonnottoplayfootball in the street.

精选公文范文。

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