來源:網(wǎng)絡資源 2023-07-07 21:39:17
連詞
是一種在句子與句子之間,短語之間以及名詞等其他詞語之間起連接作用的虛詞,它不能單獨作句子的成份。按其意義可分為并列連詞和從屬連詞兩大類。
常有的并列連詞有
并列連詞連接的雙方是對等的。and, both…and, either…or, neither…nor, not only…but also, as well as等。但如果連接的兩部分意義不趨向一致,:but, however, while (而),only (只不過)。
還有表示選擇關系的并列連詞,
如:or, or else, otherwise… 再有的是連接雙方,互為因果,或表示前因后果的連詞有:for, so, therefore (因此),then等。
從屬連詞在初中范圍內常常用來連接名詞性從句,
如:that, if, whether, 其次用來連接狀語從句。:when , while, as, since, before, after, once, as soon as, until, till。
連接條件狀語的連詞有:
if, unless, as long as 等,because, since, as, now that (既然)。so that, so…that, such…that, as…as, than, where… 它們在句子與文章中幾乎無處不見。
并列連詞 |
用法 |
例句 |
and |
表并列或順承關系 |
He came into the classroom and put his schoolbag on the desk. |
用于“祈使句,and +陳述句”結構 |
Be careful, and you will make fewer mistakes. |
|
or |
意為“或者”,表示任選其一 |
Do you want to go the zoo or the museum? |
意為“否則”,用于“祈使句,or +陳述句”結構 |
Please be quick, or we will miss the last bus. |
|
so |
表示因果關系 |
It’s raining heavily now, so we have to put off the P.E class. |
for |
表示原因,及附帶理由 |
I must be off now, for it is getting late. |
并列連詞短語
連詞短語 |
意義用法 |
例句 |
neither--nor- |
既不--也不,謂語動詞的數(shù)遵循“就近原則” |
Neither he nor his children like fish. |
either--or-- |
或者--或者--,謂語動詞的數(shù)遵循“就近原則” |
Either you or he is wrong. |
both--and-- |
兩者都,謂語動詞用復數(shù)形式 |
Both she and I are good at English. |
not only-- but also |
不但--而且-,謂語動詞的數(shù)遵循“就近原則” |
Not only you but also he wants to buy the book. |
1.引導時間狀語從句的從屬連詞
從屬連詞 |
用法 |
例句 |
when 當--時候 |
引導的從句中,謂語動詞可以是短暫性動詞也可以是延續(xù)性動詞 |
It was raining when he came out of the office. |
while 當--時候 |
引導的從句中,謂語動詞必須是延續(xù)性動詞,且常用進行時 |
Don't make any noise while others are reading in the library. |
before 在--之前 |
“在……之前”,從句的動作通常發(fā)生在主句動作之后 |
She reached the train station before he called her yesterday. |
after 在---之后 |
“在……之后”,從句的動作通常發(fā)生在主句動作之前 |
He turned off the light and went to bed after he cleaned the room. |
until
|
常用在“not...until...”結構中,表示“直到……才……” |
Nancy didn't appear until it was ten o'clock last night. |
as 一邊--一邊 |
表示一件事情在發(fā)生,另一件事情也在同時發(fā)生 |
The students took notes as they listened to the radio in English class. |
as soon as 一--就-- |
表示從句的動作一發(fā)生,主句的動作就隨之發(fā)生 |
I'll write a letter to you as soon as I get to America. |
since 自從 |
從句常用一般過去時,主句用現(xiàn)在完成時 |
The girl who can speak English smoothly has lived in London since she was five years old. |
once 一旦 |
表示從句動作一發(fā)生,主句的動作就隨之發(fā)生 |
Once they find people in trouble, they are eager to help them without payment. |
2.引導條件狀語從句的從屬連詞
連詞 |
用法 |
例句 |
if 如果 |
主句用一般現(xiàn)在時,主句通常用一般將來時,即主將從現(xiàn),但有時用主情從現(xiàn)或主祈從現(xiàn)。 |
1.If he has time tomorrow, he will come to the meeting. 2.None can succeed if he doesn’t work hard. |
unless 除非,如果不 |
主句用一般現(xiàn)在時,主句通常用一般將來時,即主將從現(xiàn),但有時用主情從現(xiàn)或主祈從現(xiàn)。。 unless可轉化成if--not結構。 |
1.He won’t finish the work unless he works hard. 2.If it doesn’t rain, go for a picnic. |
as long as 只要 |
主句用一般現(xiàn)在時,主句通常用一般將來時,即主將從現(xiàn)。 |
You can take any book as long as you like. |
3.引導讓步狀語從句的從屬連詞
連詞 |
意義 |
例句 |
because |
表示造成某種情況的直接原因,語氣最強,常用來回答由why引導的問句,其從句的位置通常在主句的后面。 |
He has to leave because it is too late. 因為太晚了,他不得不走。 |
since |
since語氣比as稍強,不表示直接的或根本的原因,而是一種已知的或非常顯然的理由,since引導的從句通常位于主句之前。 |
Since everyone is here, let’s start. 既然大家到齊了,我們就出發(fā)吧! |
as |
as是從屬連詞,表示原因時,語氣最弱,所說的原因比較明顯或是已知的事實,它引導的從句一般位于主句之前。 |
We all like her as she is kind. 我們都喜歡她,因為她善良。 |
4.引導方式狀語從句的從屬連詞
連詞 |
意義 |
例句 |
as |
按照--方式 |
She always does as her father tells her. |
as if |
似乎,好像 |
He walked around as if he was looking for something. |
5.引導結果狀語從句的從屬連詞
連詞 |
意義 |
用法及例句 |
so --that |
如此--以至于 |
so后跟形容詞副詞原形。(so--that--結構常與too--to結構轉化)。 She was so tired that she couldn’t go any farther
|
such --that |
such后跟名詞或名詞性詞組。 It’s such a fine day that many people go to the park for fun. |
6.引導結果狀語從句的從屬連詞
連詞 |
意義 |
用法 |
so that |
以便于,為了 |
They sped up so that they could get there on time. |
in order that |
為了
|
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