連詞在句中不能單獨作句子成分,只起連接作用,要連接平等的結構,即連接詞與詞、短語與短語或句子與句子。連詞分為并列連詞和從屬連詞。
并列連詞
并列連詞用來連接具有平行關系的詞、短語或句子。常用的并列連詞有:and,but,or,so,both…and,not only…but also,either…or,neither…nor等。
1.a(chǎn)nd “和,而且”,連接主語時謂語動詞用復數(shù)。
My brother and I are students. 我哥哥和我都是學生。
2.or “和,或者”,表示選擇,多用于否定句。連接主語時謂語動詞由后者決定。
I don't like milk or coffee. 我不喜歡牛奶和咖啡。
3.but “但是”,表示轉折。
I can swim, but I can't swim well. 我會游泳,但我游得不好。
4.so “所以,因此”,表示結果。
It's raining outside, so I have to stay at home. 外面下雨了,所以我只好待在家里。
5.both...and “兩者都……”,連接主語時謂語動詞用復數(shù)。
I can speak both Chinese and English. 我會說漢語和英語。
6.not only...but also “不但……而且”,連接主語時謂語動詞由后者決定。
Not only he but also I like skating. 不但他而且我也喜歡滑冰。
7.either...or “或者……或者”,表示選擇。連接主語時謂語動詞由后者決定。
Either she or I have the chance to go abroad. 要么她要么我有機會出國。
8.neither...nor “既不……也不”,連接主語時謂語動詞由后者決定。
Neither she nor I like Sports Shows. 她和我都不喜歡體育節(jié)目。
從屬連詞
從屬連詞用來連接主句和從句。常用的從屬連詞有:when,before,after,as soon as,because,if,though,although等。
1.when/while “當……時”,表示時間,引導時間狀語從句。
When I got home, my mother was cooking. 當我到家的時候,媽媽正在做飯。
2.before “在……之前”,表示事情發(fā)生的先后順序,引導時間狀語從句。
I must get home before 5:00. 我5點之前必須到家。
3.a(chǎn)fter “在……之后”,表示事情發(fā)生的先后順序,引導時間狀語從句。
After I had breakfast, I went to school. 我吃完早飯后上學去了。
4.a(chǎn)s soon as “一……就……”,表示時間,引導時間狀語從句。
As soon as I get home, I will call you. 我一到家就給你打電話。
5.because “因為,由于”,表示原因,引導原因狀語從句。
She isn't at school because she is ill. 因為她生病了,所以沒上學。
6.if “如果”,表示條件,引導條件狀語從句。
You will make progress if you work hard. 如果你努力就會取得進步。
7.though/although “雖然,盡管”,表示讓步,引導讓步狀語從句。
Although/Though he is rich, he is unhappy. 雖然他很有錢,但是他不快樂。
在漢語中“因為……所以……”總是成對出現(xiàn),
而在英語中because 不能和so 并用,二者只用其一。
Because I like music. I often go to concerts.
I like music. So I often go to concerts.
因為我喜歡音樂,所以我經(jīng)常去聽音樂會。
一、用適當?shù)倪B詞填空。
1.__________ it's raining, the match continues.
2.I'll telephone you __________I arrive in New York.
3.I was tired,__________I went to bed early last night.
4.Does he go to work by bike __________ by bus?
5.It is snowy __________ cold in winter.
二、請用括號里的連詞連接下列句子。
1.She is poor. She is happy.(but)
2.He was tired. He couldn't walk there.(because)
3.He can play soccer. He can play basketball.(both…and)
4.It was dark. I couldn't see anything.(so)
三、選擇合適的連詞完成句子。
1.The shoes are nice,__________ they are a little small.(because, but)
2.I like volleyball __________ football.(and, or)
3.__________ you have any questions, please tell me.(But, If)
4.Turn off the lights __________ you leave the room.(so, before)
5.It is raining,__________I stay at home.(because, so)
一、1.Although/Though
2.a(chǎn)s soon as
3.so
4.or
5.a(chǎn)nd
二、1.She is poor, but she is happy.
2.He couldn't walk there, because he was tired.
3.He can play both soccer and basketball.
4.It was dark, so I couldn't see anything.
三、1.but
2.a(chǎn)nd
3.If
4.before
5.so