英语连词有哪些？

分为4类：并列连词.转折连词.选择连词和因果连词
分为2类：并列连词和从属连词

英文连接词是连接英文单词的词，如also,and等。英语有486,000个左右的单词，而连接词却只有70个左右，它们总是非常高频率的出现在各类文章、对话、电邮等英语实际沟通中。

连词是连接词、短语、从句语句子的词，它是虚词，所以不能单独担任句子成分。
知识梳理：提纲挈领，抓住重点和难点！
连词的分类：
连词主要分为两大类：并列连词和从属连词。
1、并列连词：用来连接并列关系的词、词组或分句。它包括：and，or，but，for，both…and，either…or，neither…nor，not
only…but
also。
2、从属连词：用来引导从句，它包括：that，when，till，until
after，before，since，because，if，whether。though，although，so…that，so
that，as
soon
as，
as…as等。
连词用法示例与解析:
“
and”
1.
He
got
up
and
left
the
room.
2.
He
went
to
Kunming
and
I
went
Harbin
last
year.
特别用法:
句型
“祈使句,
and
…”=
If
you…,
you
will…
3.
Work
hard,
and
you
will
do
well
in
the
exam.
“or”
1.
Tom
or
I
am
right.
(or连接两个名词或代词做主语时谓语动词依照后面的词而定)
2.
Would
you
like
coffee
or
tea?
特别用法:
句型
“祈使句,
or…”=
If
you
don’t
…,
you
will…
3.
Hurry
up,
or
you
will
miss
the
bus.
“but”
1.
She
is
sixty,
but
she
still
looks
young.
2.
She
is
tired
but
happy.
3.
I
came
here
not
for
myself
but
for
my
son.
4.
Mary
likes
piano
but
Tom
doesn’t
(like可以省略).
“for”
1.
I
went
to
sleep
soon,
for
I
was
very
tired.
2.
The
sun
has
risen，for
the
birds
are
singing.
比较：表示原因,译为”因为”,
表示说明、解释。与because不同，用语解释某事的原因、动机，强调因果关系。用语回答why引导的问句。
“both
…and
…”
1.
Both
you
and
I
are
Chinese.
2.
I
like
both
sports
and
music.
特别用法:
both…and…的否定句表示部分否定。
3.
He
can’t
play
both
tennis
and
volleyball.
它并不是既会打网球又会打排球。
either…or…,
neither…nor…
1.
Either
you
or
she
is
wrong.
2.
Can
you
speak
either
French
or
English?
3.
Neither
the
teacher
nor
the
students
like
this
song.
特别提示:
用either…or…,
neither…nor…连接两个名词或代词做主语时谓语动词依照后面的词而定。
比较:
both…and…,
either…or…,
neither…nor…的相互关系:
肯定句:
1.
I
like
both
A
and
B.
否定句:
2.
I
don’t
like
both
A
and
B.=
I
like
either
A
or
B.
否定句:
3.
I
don’t
like
either
A
or
B.=
I
like
neither
A
nor
B.
“Not
only…but
also…”
1.
Not
only
you
but
also
your
father
is
coming.
(连接两个名词或代词做主语时谓语动词依照后面的词而定)
2.
She
learns
not
only
English
but
also
Japanese.

1,并列连词
and 和，那么，渐渐；
or 或，否则，不管是…，还是；
but 但是，而是，的确…但；nor 也不
so 也是，因此，所以，那么，这样看来；
for 因为（表示推测），由于；
2,相关连词
both A and B 既是A又是B；
either A or B 不是A 就是B；
neither A nor B 既不是A也不是B ，两者皆非；
not only A but also B 不但A而且B；
A as well as B 不但A而且B , 与，和；
3,准连词
而且 besides, furthermore, moreover, in addition;
然而 yet, still, however, nevertheless;
否则 else, otherwise;
因此 所以 thus, hence, therefore, accordingly, consequently;
4,引导名词从句的连词
从属连词 that, whether, if;
疑问连词 what, which, who/whom/whose;
疑问副词 when, where, why, how;
复合关系代词 whatever, whoever, whomever;
5,引导定语从句的连词
关系代词 who (whom whose), which, that, as;
关系副词 when, where, why;
关系形容词 which, whose…
6,引导状语从句的连词
表示时间 when, while, as, till, whenever, since, as soon as…
表示条件 if, unless, as long as, in case, if only, on condition…
表示结果 so…that , such…that (如此…以至于);
表示目的 that, so that, in order that; lest, for fear, in case;
表示原因 as, because, now (that ), seeing (that), since…
表示让步 whether…or, notwithstanding, though, for all that…
表示地点 where, wherever, everywhere, anywhere
表示方式 as, as…so, as if, according as;
表示比较 than, the more… the more…, as…as…, not so…as;
Imagine 设想一下
Pay for 为…….付出代价
Slow down 减慢速度
An age of specialization 专业化时代
Becanse of this 这是因为
Becanse 因为
Thea ctual value 实际价值
Harder to get away 更难
One reason 一个原因
Tukes close look 近距离地看一看
Serial number 序列号
Just 正好，仅仅，刚刚，简直，只是
Might 也许
However 然而
Though 然而
At that time 不过在那时
A little later 不久以后
May 五月，可能
These days 现在
At times 时常，有时
At time passed 随着时间流逝
Stand for 代表
First of all 首先
Maybe 大概
Someone 有的人
In the early days 在早期
Took some time 花费一些时间
Ever been 以往
考试是题目中常出现的关键词语
……positive 肯定的
Negative 否定的
Doubeful 怀疑的
Support 支持
Agreeing 赞成
Critical 批评