連詞的分類

并列連詞和從屬連詞

并列連詞

1)表示并列關系的并列連詞有：and, both...and..., neither...nor..., not only...but also..., as well as等。

To make our dreams come true, we are supposed to set goals ______ then try our best to achieve them.

A. or B. and C. but

2)表示轉折關系的并列連詞有：but，yet，however，while等

Money is very important ______ it’s not the most important thing.

A. or B. and C. so D. But

3)表示選擇關系的并列連詞有：or, or else, either...or...,otherwise等。

—I am tired.—Stop working and have a good rest, _____ you’ll get ill.

A. or B. but C. and

4)表示因果關系的并列連詞有：so, for, therefore等。

注意：

for和because在表示“原因”時意思基本相同,一般可以互相代用。because引導的從句一般放在主句后,有時也可放在主句前,而for引導的句子只能放在主句后。另外

從屬連詞

1)引導時間狀語從句的從屬連詞有：when，while，as，after，before, since, until, as soon as等。

注意：

【例句】

I was doing my homework while/when my brother was playing computer games.

注意：

Since用于現在完成時

Not until位于句首要倒裝

as soon as引導的時間狀語從句，遵循主將從現的原則

2)引導原因狀語從句的從屬連詞有：because, as, since等。

3)引導地點狀語從句的從屬連詞有：where，wherever等。

引導條件狀語從句的從屬連詞有：if, unless, in case, as long as等。

4)

—Emma failed her exams. I think she should work harder.

—I agree. ______ she does, she’ll get good grades.

A. If B. BecauseC. Before D. Though

5)引導目的狀語從句的從屬連詞有：so that, in order that等。

6)引導讓步狀語從句的從屬連詞有：though, although, even though, however等。

Mary spends a lot of money on clothes ______ her family is not rich.

A. because B. though C. if D. so

7)引導方式狀語從句的從屬連詞有：as, as if, as though等。

8)引導比較狀語從句的從屬連詞有：as, as...as..., not so...as..., than等。

注意：

as...as

9)引導結果狀語從句的從屬連詞有：so, so...that..., such...that...等。

—Did you catch what the teacher said?

—No. She spoke _______fast that I couldn’t hear her very clearly.

A. which B. so C. such D. since

注意：

so foolish such a fool

so nice a flower such a nice flower

so many/ few flowers such nice flowers

so much/little money such rapid progress

so many people such a lot of people

so many

。

10)引導賓語從句、表語從句、主語從句的從屬連詞有：that, if, whether, what, when, why, where, how等。

注意：

if

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易錯點：

在否定句中，并列結構用or連接，但含有兩個否定詞的句子實際上被看作是肯定結構，要用and連接。

3.because“因為”，so“所以”不能同時出現在同一個句子中，只能用其一。(al)though“雖然”，but“但是”也不能同時出現在同一個句子中。

4.句型both...and的用法連接主語時謂語動詞用復數形式。

句型

①連接兩個成分,其謂語動詞根據就近原則，與所靠近的成分保持數的一致。

②

not only…but also…可以連接兩個句子，not only位于句首時，not only后的句子要倒裝。

句型

either...or...,neither...nor...連接主語時，謂語動詞也采用就近原則。

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