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初三英语怎么补语法

发布时间:2021-01-15 06:50:58

A. 马上上初三了,可是英语的语法都不会怎么办呢

英语学习最重要的两个模块就是单词和语法了,要想学习语法,我觉得北京回新东方中小学一对一答推出的标准课时十分适合你,这套标准课时涵盖了初中英语的所有语法知识点,每一个语法知识点都有配套的关卡,而且还有闯关助手,学好了这套标准课时,你绝对能掌握初中英语的语法知识。我现在正在北京新东方一对一闯关呢,你要不要来呀~

B. 怎么样提高孩子的英语初三语法较弱!

毫无疑问,不懂语法的就像瘸腿子,怎么能跑得过那些语法纯熟,词汇丰富的高手们呢?
我是一个高考的过来人,高考成绩129分,平时大考碰狗屎运也考过130+的分数。首先我想请阁下明白一个道理冰冻三尺非一日之寒,所以坚持很重要,英语是一门很看重积累的科目。
虽然我高考已经好多年了,而且今年即将大学毕业,踏入社会。但英语一直没有丢,英语一直是我的排头兵!我对英语的自信还有,我觉得学好英语不难,重要的是你要有恒心,急躁冒进,三天打渔两天晒网都是不行的。在这里我就毛遂自荐一下我的学习方法吧:
首先先你要端正心态,不要急躁,,你做你自己的事,这样才能静下心来学习。要成为英语高手就必须比别人走更多的路,做更多的事。你应该明白一个事实,英语是单词和语法的综合,所以单词和语法都要拿下。
其次,对于单词,有如下几种方法,第一个,是加强记忆的频度,也就是说,早上记了几个,隔几个小时又看一次,总之一天之内,记忆的间隔不要太长,否则你辛苦积累的记忆会随着时间的延长而淡化,第二个,是可以根据自己的理解编顺口溜,比如good morning 是狗摸你…(见笑了)…,第三个,最重要的是,记单词的时候,不要忘了阅读,一边记单词,一边看文章,这样可以把孤立的单词串联起来,记忆的效果会加倍,第四个。我建议你记单词要分门别类记忆,要形成一个意群,比如,重要性用magnitude magnificence ,表示非常,大大地有exceedingly,tremendously,extremely……这样做在你写作时,是十分有好处的,写作时不要尽写一些低级词汇,你要写高级词汇,比如重要性写magnitude,许多写a multitude of 或者handsome。
再次,是语法。学习语法,首先要明白什么是主谓宾定状补,什么是系动词,什么是直接宾语,间接宾语,这些是学习语法的基础,语法是房子,主谓宾定状补等是沙石砖瓦。然后就要多做一些语法专项练习,并在此过程中不断总结,并时时回顾那些了解,那些依然不理解,需要注意的是,那些不理解的一定要花时间弄清楚,否则对自己的不负责将会导致英语语法一知半解的结局!这对于想成为英语高手的人来说,是十分不利的!(注:本人从开始时不知主谓宾,到熟练掌握语法,把语法书看了不下二十遍,书都翻烂了!莫笑本人愚笨……)
此外,对于完形填空以及阅读理解,那就只能靠平时的练习了,在这个过程中,你要时时总结,纵深对比,千万不要陷入题海战术只做题,不总结的误区当中。在做题的过程中,你把各种体型都总结了一遍,积累了丰富的经验,而且你还提升了自己的阅读速度,一举两得,所以做题是很重要的!其实,完形填空无非就是单项选择加语境分析,也就是说,做完形填空你的语法要好,而且你要积累比较多的固定搭配,短语,特殊用法等,完形填空的语法还是很重要的!对于阅读,我个人感觉是,纯粹是个人经验积累多少的问题,只有保证一定的练习量,你才能用质的提高!
最后,我建议你,平时读报,或者做题的时候,发现有好的句子好的词汇,你要抄下来,长期下来,你的作文会有提高的,需要说明的是,这个提高过程可能很缓慢,但是最后能收到很好的效果,以前25分的作文我都能保证在21-23这个级别,靠的就是对语法的熟练掌握和积累了许多较高级的词汇,句型,句子。我个人的理解是,在你的语法达到基本不会出错的程度上,作文便应该以词汇取胜,因为在这个层次上,大家的语法都差不多,没什么变化,唯一有变化的就是你的词汇!给你打个比方吧,很多想到“许多”就用many,但是你别忘了many a ;handsome;massive,innumerable;很多人想到“专家”就写expert,但很少人会想到specialist,很多人在想到“擅长”这词,就写be good at ,却不知还有更高级的表达法:be expert at 或者excel in ……高手和庸才,就体现在这些细微的差别上 !!

C. 初三了还有几个月要中考了可是英语什么都不知道语法听都没听过,还有救嘛该怎样学,怎样补回前面的

我是英语专业的抄,然后现在做翻译,我想说学英语应该是所有科目中最简单的了,因为英语最重要的就是单词,语法和预感,这些都是仅仅需要背的东西,您只要把单词,语法和没课中的课文背好就行。我想说学习没有什么快速的方法,只要花时间,都会学好的。

D. 初三怎样提高英语

首先就是背单词,学会音标,学会拼读。其次就是习惯阅读,每天都做阅读理解等题。最后就是学会积累,积累句子,这个时候就要弄清楚语法问题,当然在阅读习惯养成的时候你可以顺便补习语法。

E. 我已经初三了,但英语却很不好,几乎什么都不会,尤其是语法,该怎么样补起来呢

您好,我是高二来的学生,源对于英语,我真的是特别无语,初一基本学不懂,初二可以考40多分了,初三时,我花了大量的时间去记英语笔记,其实我现在都搞不懂初中的语法,我唯一能做的就是每天坚持多去读英语句子。疯狂英语的负责人李阳到我们学校演讲,还有开夏令营等都提倡多读,多记!初中的考试其实很简单,只考些常用的短语啊,简单的时态呀,我关于语法的题中考都是猜的,不过我中考英语都考了137.5,其实英语真的不难!记住,多读常用句子,多记常用短语就可以了!(如果您对我的回答满意的话,请采纳,谢谢)

F. 初三开始补英语 来得急吗

来得及,到初三一定要注意利用早读时间,并且要把三年学的语法知识和词组用法掌握牢记,关键还要对自己有信心,做题量也适当增加,抓基础,并且多与老师交流。尽管是初三,别太大压力,祝你考好!加油!

G. 初三英文语法(要最详细的~)

初三语法讲义
一.动词(一)名词
名词分类:可数名词,不可数名词可数名词变复数
1. 在名词词尾加-s
girl, girls; table, tables; roof, roofs; school, schools
2.以o, s, sh, ch, x结尾的名词,加-es
tomato, tomatoes; class, classes; watch, watches; bush, bushes
3.以o结尾加-s
piano, pianos; photo, photos
4.以辅音字母加y结尾的,去掉y,加-ies
baby, babies; family, families; university, universities
5.以元音字母加y结尾的直接加s
toy, toys; monkey, monkeys; guy, guys
6.以f或者fe结尾的,去掉f, fe加-ves
wife, wives; life, lives; wolf, wolves; calf, calves
7. 改变形式的复数
man, men; child, children; foot, feet; mouse, mice; tooth, teeth
8.单数复数形式一样
fish, fish; sheep, sheep; deer, deer; swine, swine
9.特殊词汇的复数
looker-on, lookers-on; passer-by, passers-by
不可数名词没有数的概念
名词所有格
1.一般情况’s
2.表示时间、距离、城市、国家
today’s paper at arms’ length a mile’s journey
Beijing’s weather China’s economy
3.of表示所有格 4.双重所有格
a friend of mine a child of hers
(二)代词
人称代词 人称 单数 复数 主格 宾格
第一人称
I me we us
第二人称
you you you you
第三人称
he him
they them
she her
it it
物主代词
单数复数第一人称第二人称第三人称第一人称第二人称第三人称
形容词性物主代词
My Your His Her Its Our Your Their
名词性物主代词
Mine Yours His Hers Its Ours Yours Theirs
反身代词人称第一人称第二人称第三人称单数
myselfyourselfhimself herself itself
复数ourselvesyourselvesthemselves
相互代词each other/one another
不定代词another/other/others
(三)数词
基数词
One two three four five six…..Hundreds of 正确数词+hundred 正确
Hundred of 错误数词+hundreds 错误数词+hundreds of 错误
序数词First second third fourth….
分数1/3 one third2/3 two thirds
(四)冠词不定冠词
例句用于可数名词单数形式前
usan is a scientist.Pass me an orange, please.
不特指某人或某物
A boy is looking for you.
We work five days a week.
表示“一”的数量,但没有one强烈
We are going to have an English lesson tomorrow.
I have a mouth, a nose, two eyes and two ears.
用于固定词组中
A few, a little, a lot of, a moment ago
定冠词
例句特指某人或者某物
Show me the photo of the boy.
双方都知道的事物或人
Where are the new books, Jim?
They are on the small table.
上文提过的人或物
Ji Wei lives on a farm. The farm is not big.
独一无二
The sun is bigger than the moon.
序数词和形容词最高级前
The first month of the year is January.
普通名词构成的专有名词前
The Great Wall
习惯用语
In the morning

On the left

零冠词

用法

例句

专有名词和不可数名词前

China

名词已经有定语this, that, my, your, some, any等

That letter is in her bag.

复数名词表示一类人或物

My father and mother are teachers.

星期、月份、季节、节日前

It is Sunday today.

称呼前

What colour are Mrs. Green’s shoes?

三餐和球类运动前

He went to school before breakfast this morning.

(五)介词

多数考察为固定搭配,需要死记硬背

(六)形容词与副词

规则变化

构成方法

原级

比较级

最高级

单音节和少数双音 节词

一般在词尾加-er/est

Cold

Strong

Fast

slow

Colder

Stronger

Faster

slower

Coldest

Strongest

Fastest

slowest

以字母e结尾的形容词,在词尾加-r/-st

Nice

large

Nicer

larger

Nicest

largest

重读闭音节词只有一个辅音字母时双写辅音字母,加-er/-est

Big

Thin

hot

Bigger

Thinner

hotter

Biggest

Thinnest

hottest

以辅音字母+y结尾的双音节词改y为i加-er/est

Easy

happy

Easier

happier

Easiest

happiest

部分双音节词

在词前面加more/most

Delicious

Interesting

Easily

Carefully

More Delicious

More Interesting

More Easily

More Carefully

Most Delicious

Most Interesting

Most Easily

Most Carefully

不规则变化

原级

比较级

最高级

Good/well

Bad/badly/ill

Many/much

Little

far

Better

Worse

more

Less

Father

further

Best

Worst

Most

Least

Farthest

furthest

形容词和副词比较级和最高级的用法



用法

例句

比较级

表示两者的比较

Mr. King is taller than Mr. Read.

最高级

表示三者或者三者以上的比较

Whose drawing is the best of all?

She is the youngest in the class.

同级比较

I think science is as important as maths.

It is not as(so) warm today as yesterday.

二.动词

(一) 时态

1.一般现在时

三单变形

情况

变化规则

例词

一般情况

加-s

come, comes; learn, learns

以o,s,x,ch,sh结尾的词

加-es

pass, passes; do, does

以辅音加y结尾的词

变y为i加-es

fly, flies; cry, cries

2.现在进行时

现在分词构成方法

情况及变化

例词

一般情况,在动词原形后加-ing

go, going; see, seeing

以不发音的e结尾的动词去掉e加-ing

take, taking; live, living

以重读闭音节结尾的词,如果词尾只有一个辅音字母,先把词尾的辅音字母双写,再加-ing

plan, planning; cut, cutting; forget, forgetting

以ie结尾的词变ie为y加-ing

die, dying; lie, lying; tie, tying

以ye和oe结尾的词,直接加-ing

eye, eyeing; dye, dyeing

3.一般将来时

shall

will

be going to

4一般过去时

规则动词过去构成

构成规则

原形

过去式

一般动词在尾加-ed

look

play

start

looked

played

stared

结尾是e的动词加-d

live

hope

use

lived

hoped

used

末尾只有一个辅音字母的重读闭音节,双写辅音字母,加-ed

stop

plan

trip

stopped

planned

tripped

结尾是辅音字母+y的动词,变y为i加-ed

study

carry

worry

studied

carried

worried

词尾 –ed的读音

读音

例词

浊辅音和元音后

/d/

called borrowed

moved enjoyed

welcomed answered

清辅音后

/t/

finished helped

passed cooked

在t, d后面

/id/

wanted shouted

needed counted

5.过去进行时

was/were+现在分词

6.现在完成时

have/has+过去分词

用法一:表示从过去发生一直到现在,特点:用延续动词,加段时间状语

用法二:表示过去发生的事情而不用一般过去时,特点:不用延续动词,不加段时间状语

构成

7.过去完成时

时间轴:

--------------+--------------------+--------------------------------------+---------------------------------à

A B C

过去的过去 过去 现在

(过去完成时态)

用法一:表示从过去发生一直到过去一时间,特点:用延续动词,加段时间状语

用法二:表示过去的过去发生的事情

8.过去将来时

不是考试的重点

(二) 被动语态

使用情况:不知道谁是主语

不强调主语

用来表示客观的表达

构成:助动词be+过去分词

有些动词主动语态中省略了不定式在变为被动语态时要讲TO补充出来(非谓语动词重点讲解)

(三) 情态动词

can (could), may (might), must, need, ought to, dare (dared), shall (should), will (would)

dare/need

dare

肯定

否定

情态动词

dare do

dare not do

实意动词

dare/dares to do

do/does not dare to do

need

肯定

否定

情态动词

need do

need not do

实意动词

need / need s to do

do/does not need to do

may/can

may表示许可

can 表示自身能力

can/be able to区别

a) Can只有现在和过去两个时态,be able to可以是任何时态

b) Can 不强调结果一定成功,be able to暗示结果一定成功

must表示必须,否定用needn’t

mustn’t表示禁止

(四) 非谓语动词

1. 不定式to do

否定不定式为not to do

可以省略不定式to的词

let/make/have/see/hear/watch/notice/feel/look at/listen to

注意:在以上词出现在被动句中时要将to补充出来

2. 现在分词与过去分词

flying bird可以表达成the bird is flying.

broken arm可以表达成 the arm is broken

现在分词强调过程,过去分词强调结果

falling leaf/fallen leaf

boiling water/boiled water

3.动词后加动词的不同形式

(1)、加to doing

devote to doing/ get down to doing/ object to doing/ look forward to doing/ be used to doing

(2)、加to do

afford/agree/ask/attempt/choose/decide/hope/expect/intend/learn/manage/offer/plan/pretend/promise/refuse/wish

(3)、加doing

admit/appreciate/avoid/can’t help/stand/enjoy/escape/put off/risk/give up

(4)、加to do/doing都可以的但是意思有区别的

forget/remember/stop

(5)、加do/doing都可以但是意思有区别的

see/notice/hear

三.简单句

(一) 反意疑问句

反意疑问句

反意疑问句用来表示提问者有一定的主见,但是没有把握,希望对方来证实。

The weather here is very cold, isn’t it? Yes, it is.

You’re from Australia, aren’t you? yes, I am.

对反意疑问句回答,不管问题的提法如何,事实是肯定的就用肯定回答,否定的就要用否定的回答。

He isn’t going to the meeting, is he?

Yes, he is. 不,他要去的

No, he isn’t. 对,他不去

反意疑问句通常由一个陈述句和一个疑问句组成。当陈述句为肯定时,疑问句为否定;当陈述句为否定时,疑问句为肯定。但是以下几个要注意:

1. 陈述部分主语 I, 疑问部分要用aren’t I

I am as tall as your sister, aren’t I ?

2. 陈述部分谓语是wish, 疑问部分要用may+主语

I wish to have a word with you, may I ?

3. 陈述部分用no, nothing, nobody ,never, few, seldom, hardly, rarely, little等否定含义的词时,疑问部分用肯定。

The Swede made no answer, did he?

4.有ought to的,陈述部分是肯定的,疑问部分用shouldn’t/oughtn’t+主语

He ought to know what to do, oughtn’t he?

5. 陈述部分有have to疑问部分用don’t+主语

we have to get there at eight tomorrow, don’t we?

6.陈述部分谓语是used to,疑问部分用didn’t+主语或者didn’t+主语

He used to take pictures there, didn’t he?

7.陈述部分有had better疑问句用hadn’t you?

You’d better read it by yourself, hadn’t you?

8.陈述部分有would rather疑问句用wouldn’t +主语

He would rather read it ten times than recite it, wouldn’t he?

9.陈述部分有.陈述部分有you’d like to疑问部分用wouldn’t+主语

You’d like to go with me, wouldn’t you?

10.感叹句中,疑问部分用谓语+主语

What colours, aren’t they?

what a smell, isn’t it?

11陈述部分由neither…nor, either…or疑问部分根据实际逻辑意义而定

Neither you nor I am engineer, are we?

12. 陈述部分主语是指示代词或者不定代词everything, that, nothing, this疑问部分主语it

Everything is ready, isn’t it?

13.陈述部分为主语从句,疑问部分要根据情况而定

Mr. Smith had been to Beijing for several times, he should have been in China now, shouldn’t he?

He is not the man who gave us a talk, is he?

I don’t think he is bright, is he?

14陈述部分主语是不定代词everybody, anyone, somebody, nobody, no one等疑问部分常用复数they

Everyone knows the answer, don’t they?

15.省去主语的祈使句的反意疑问句,疑问部分用will you

don’t do that again, will you?

16.陈述部分是there be结构,疑问部分用there省略主语代词

There is something wrong with your watch, isn’t here?

17.否定前缀不能视为否定词

it is impossible, isn’t it?

18.Must表示推测时,根据其推测情况来确定

He must be there now, isn’t he?

(二)感叹句

How cold it is today!

What a good idea!

(三)祈使句

肯定类型

Be careful!

Come in, please.

Let me have a look.

否定类型

Don’t be lazy.

Don’t throw the ball like that.

Let him not go there./ Don’t let her go there

四.复合句

(一) 定语从句

We all like Old Fish that is handsome.

先行词 关系词

关系代词: which, who, whom, whose, that

关系副词:when, why, where

1.先行词指人,用who/whom

(1)who可以做主语、宾语、或者表语,但who之前不能有介词

(2)whom只能做宾语或者表语,但在all of/many of加先行词时后只能加whom

注意:who.whom做宾语可以省略

2.先行词为物,用which

(1)which可以代单词

(2)which可以代短语

(3)which可以代句子

3.that与which区别

(1)只能用that情况

先行词有人有物

先行词为 all, little, few, much, none, the first, etc

先行词为不定代词

先行词前修饰词为 any, only, every, no, some, much, few, little, the first, the best, the only, the on, the very, the right, the last

(2)只能用which情况

非限定性定语从句

关系词前有介词

4.whose表示所属关系

(1)whose后加名词

(2)可以代人可以代物

(3)先行词加whose加名词=先行词加名词 of which结构

介词+关系代词=关系副词

关系代词后加不完整句

关系副词/介词+关系代词后加完整句

主系表: 主系表都有, 完整句

主系表缺一个,不完整句

主谓宾:谓语动词为及物动词:主谓宾都有,完整句

主谓宾缺一个,不完整句

谓语动词为不及物动词: 主+动词+介词+宾语,完整句

主+动词,完整句

主+动词+介词,不完整句

(二) 状语从句

时间状语从句:when, before, after, while, since, as, till, as soon as, the moment….

地点状语从句: where, wherever

条件状语从句:if, unless, so long as, as long as, in case, if only, provided that….

原因状语从句:because, since, as, now that

结果状语从句:so, so that, so…that, such…that

让步状语从句:though, although, even if, even though, however, whatever

目的状语从句: that, so that, so, in order that, in case, for fear that, lest

比较状语从句:than, as…as, so…as

五.主谓一致

就近原则

or, nor, either or, neither nor, not only…but also

就前原则

as much as, rather than, more than, no less than, as well as, in addition to, with, along with, together with, except

集体名词的主谓一致

people, cattle, youth, police+复数谓语

machinery, equipment, furniture+单数谓语

audience, committee, crew, family, government, army, enemy, group, staff, team, couple, band+可单可复

时间、地点等数量概念的主谓一致

谓语用单数

Ten miles is a long way to go.

a of b结构中的主谓一致

按照A来确定谓语

a pair of trousers is enough.

Two pair of trousers are enough.

以S结尾的主谓一直问题:地理名词、群岛山脉等风景、学科名词

国家加单数谓语: the United States

地理名词,群岛山脉等风景加复数谓语: the West Indies, Himalayas, Straits of England

学科名词加单数谓语: politics, economics

六.习惯用语

七.固定搭配

八.介词搭配

(一) 介词+名词

against one’s will

at a loss

at one time

at home

at the same time

at work

at night

beside the point

by chance

by the way

by the end of

by all means

for the time being

for the sake of

from beginning to end

from time to time

in the end

in surprise

in trouble

in the street

in English

in a word

in the meantime

in vain

in need

in half

in no time

in a low voice

in the least

in public

in life

in a minute

in the eyes of

in time

in sight of

in place of

in detail

in a hurry

in any case

in case

in charge of

in bed

in addition to

in the course of

in particular

in time of

in return

in spite of

in reply to

in memory of

in honour of

in fear of

influence on

off hand

on guard against

on the ground

on the radio

on the way

on the right

on purpose

on strike

on account of

on sale

on the air

on time

out of work

out of order

on behalf of

on watch

on the whole

on show

on day

out of sight

out of repair

out of place

out of practice

out of date

out of breath

over the radio

to this day

thousands of

on the one hand, on the other hand
(二)形容词+介词

absent from

aware of

apart from

according to

anxious for

angry at

afraid of

busy with

careful of

cruel to

e to

different from

equal to

be familiar to sb

be familiar with sth

be famous for

far from

fond of

full of

fussy about

grateful for

good at

hard on

interested in

instead of

kind to

keen on

late for

opposite to

once for all

polite to

proude of

ready for

responsible for

short of

sorry for

strict with

thankful to

wrong with

(三)动词+介词

act on

answer for

agree to

agree with

agree on

arrive at

aim at

ask after

ask for

borrow from

believe in

belong to

break into

beat down on

begin at

base on

consist of

congratulate on

come to an end

compare with

compare to

care for

change for

change from to

clear up

catch up with

come across

come into

call up

call for

catch hold of

call on

depend on

do away with

disagree with

die of

die from

die for

devote to

engaged in

end with

fit in with

fail in

find out

give up

get over

get on

get on

get in touch with

get ready for

get in

go in for

grow up

give in

give lessons to

get up

go on

go all out

go through

go over

go down

go on with

go without

hand in

have nothing to do with

have something to do with

have a look at

head for

help with

have a word with

have words with

hope for

introce to

be inspired by

insist on

interfere with

join in

keep on

knock at

keep up with

long for

look up to

look up

learn by heart

leave for

look for

lie in

live on

laugh at

look down upon

look forward to

look through

meet with

make up one’s mind

make friends with

make room for

owe to

operate on

pay attention to

play with

put up

put off

point out

put up with

prevent from

persist in

put into practice

run out of

reply to

recover from

rely on

rob of

run over

result from

result in

set an example to

set about

set out

succeed in

speak of

supply with

share in

share with

settle in

see through

send for

stand by

stand for

stop from

spend on

show around

talk about

tide over

turn against

turn into

turn to

think of

think about

take care of

take off

turn out

turn round

turn up

take part in

to begin with

wait for

watch out for

write to

wake up

watch over
(四)过去分词+介词

be absorbed in

be burdened with

be connected with

be covered with

be crowded with

be dressed in

be engaged to

be equipped with

be experienced in

be filed with

be furnished with

be interested in

be joined to

be known as

be known for

be made into

be made up of

be married to

be pleased with

be prepared for

be regarded as

be satisfied with

be ashamed of

be tired of

be terrified at

(五)动词+名词+介词

apply ones’ mind to

catch sight of

do harm to

do wrong to

feel pity for

fix one’s eyes on

form the habit of

get a good hold of

give advice on

have none of

have trust in

have difficulty in

have trouble in

have effect on

have mercy on

have the honour of

keep a record of

make fun of

make best use of

make an apology

make one’s way to

make preparations for

make a mistake about

pass a judgment on

set fire to

put one’s heart and soul into

shake hands with

take aim at

take the side of

throw light on

take pride in

take delight in

take a message for

(六)动词+副词+介词

add up to

break away from

be up to

cut down on

come up to

do well in

drop in on

face up to

fit in with

fall back on

get though with

get down to

get along with

go out of

go on with

go back on

go out of

go in for

grow out of

go ahead with

keep away from

keep up with

live up to

make up for

make up with

make out of

think highly of

watch out for

work hard at

(七)动词+介词+名词

arrive at a conclusion

burst into pieces

burst into tears

burst into laughter

come to the rescue

come into use

come into power

come into effect

come into light

come to a conclusion

get in a word

set to work take on a new look

H. 初三英语语法

  1. whether和if均可用来引导主语从句,但if引导的从句不能位于句首。如:.他们是赢是输於我都一样.(此时不能换作if)It'sdoubtfulwhetherthere'llbeanyseatsleft.说不上还有没有空座位了.(此句whether能换作if)

【评】错大发了。应说:均可引导动词的宾语从句。if 是不能引导主语从句的。

2.whether和if均可用来引导宾语从句。如:

①Idon'tknowwhether/ifIwillbeabletocome.我不知道我是否能来.

②Sheaskedmewhether/.她问我是否有兴趣为她工作。

③We'.我们明天才知道是不是应该参加考试.

④ce.我问他这些工作都是他自己做的还是别人帮他做的.

(注意:在两个供选择的从句之间若用or字,则须重复whether一字.)

注:

⑴当强调宾语从句并将其提前时只能用whether。如:WhetherI'.我很难说我们是否有时间跟你们一起去

【评】例句不当。I am not sure 后本就不该用if, 如改成:I don't know,就好。

⑵从句作介词宾语时只用whether不用if。如:.她拿不定主意应该不应该接受他的好意

⑶当whether和ornot连用时,只用whether不用if。当ornot放在whether引导的从句句尾,则可以用if来替换。如:

Idon’tknowwhetherornothewillcome.我不知道他是不是回来。

I'llbehappywhether/ifIgetthejobornot我能不能得到那份工作都一样高兴

【评】错例! 这里的whether是引导让步状语从句的,意为:无论。。。还是。。。,不能用if . not.将上一句改一下就可以了:

I don't know whether/if he will come or not.

⑷当whether和or连用表示明确的选择时,只用whether不用if。如:

.他问我是想乘火车还是坐公共汽车去那里。

.他开车去还是坐火车去,犹豫不决

【评】例句不当,介词后本就应用whether,不用if

注:whether和or连用还可以引导让步状语从句,此时也不用if。如:We'llgoonwiththework,.不管我们能否找到所需的工具,我们要把这件工作做下去。

Whetherornotitrains/Whetheritrainsornot,we'replayingfootballonSaturday.无论下不下雨,我们星期六一定踢足球.

⑸动词discuss,decide,consider等后习惯上也常用Whether引导从句,不用if。

.他们讨论了是否应该马上离开

.我们讨论了这房子是否应卖掉

【评】我以前只知道discuss后,另两个我没听说过。如能找到权威例句,则这条也有问题。

就是disscuss后不用if代替whether, 我也不是很理解。不知道是谁发现并总结出来的规则!这种规则很容易打破,比如我在网上看到:

The Committee: They Decide If I Live Or Die 作者:Clay Cornelius

说明decide之后有用if代替whether的例子。

英语句型转换题目: He cant decide if he will go to his cousins birthday party. He can't decide_ _ go to his cousin's birthday party . 同义句。

Please consider if this is feasible.是否可行, 请斟酌。

【】甚至我都怀疑,这个discuss后面有没有跟if的老外! 对于这一条,我始终将信将疑!

British meteorologists and climate scientists are meeting to discuss if the unusual weather is "a run of natural variability" or the proct of human-...

3.表语从句用whether引导不用if.如:

①.疑问是你是否打坏了这只漂亮的花瓶。

【评】例句和翻译很差。不如改成:The question is ... 问题是。。。

4.同位语从句用whether引导不用if.如:

①Thequestionwhetherwe''tbeensettled.是否要另建一幢教学楼的问题还未决定。

5.在动词不定式之前,只能用whether,不能用if。如:

①.问题是去慕尼黑还是去维也纳.

②Shedoesn'.是否现在结婚或是等待她不知道。

③.我们弄不清是今天走还是明天走.

④I'.我拿不准主意是辞职还是留任.

【】【】一句话总结【】【】if 和whether引导名词性从句的区别【】

在除discuss以外的及物动词后面的宾语从句中,在不引起歧义的条件下,可以用if代替whether,,但是不能直接跟or not.

不能用if代替whether的情况:

引导其它名词性从句时,只能用whether,不能用if

有歧义时,不用if

介词的宾语从句,不用if引导。

discuss的宾语从句不用if引导

引导让步状语从句,不用if

楼主,我指出原文的六处错误或不当之处。

I. 基础好的初三学生怎么补英语

背课文:如果说学语言有捷径的话,这就是。也许刚开始会觉得很难,要了你命,但是,我保回证你背到第六答篇或者第七篇就会驾轻就熟+上瘾。背课文的好处不只在于熟悉课本上已有的知识点,还在于可以养成记忆英语的好习惯,坚持一段时间(比如一学期)之后,你会发现对于英语的记忆力比以前提高了很多。

梳理语法知识点:这个仅凭初中生自己,很难做到,最好有好的老师帮忙梳理、讲解。或者自己看语法书。语法书的优势是框架完整,但是可能具体到某一个知识点讲得不是很清楚,这个时候可以请教英语老师。市场上讲解初中语法的书很多,有些滥竽充数、不负责任,注意甄别,可以请英语老师推荐。

专项练习:所谓专项是指:完形填空、阅读理解、改错、对划线句子提问等所有考试中出现的题型。按照自己的情况,每周(或者3天或者一周半)完成一个专项训练,集中几天专门做某种题型的练习,提高会很快。这就是所谓的强化训练。当然最重要的是错了地方要认真改、反复看。

J. 如果初一初二英语没学好,初三时怎么办,该补什么,怎么学语法时态急求

不用担心,英语的时态只有几种,慢慢的看,从一般现在时,一般过去回时开始,慢慢掌握。掌握时态之答后,看看有关语法书上的单词考点,记一些笔记,例如:
只跟动词-ing 形式的,
只跟不定式的,
既跟动词不定式又跟-ing的,
省略to 的动词不定式
(强烈建议你最好记在单独的一个本子上)
还有就是多做些选择题,最好有答案又跟注释的
至于单词只有你自己慢慢记了,不过单词的意思最好把它放在句子里去记忆,因为这样可以帮你加深记忆,避免紧张时忘记单词的意思,
课上听讲时要认真,若总走神的话,你就盯着老师看,他走到哪,你就盯他到哪,他说一句话,你就在心里重复一遍,如果是重点,就多重复几遍

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