and,_but_or用法归纳
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◇“和”,连接两个名词,代词或两个形容词等语法作用相同的词语。但否定句中用or。但如果前后名词都用no修饰,则可以用and。
The air was so warm and bright.
It has no feet or legs.
It has no eyes and no ears.
I have no sister or brother.
◇“然后”。用于连接两句有时间上先后的句子。
She washed the dishes and dried them.
◇表示目的,意图。用于go, come, stop, run, stay等动词后。
Come and have a drink.
Go and buy one.
◇“只要……就会……”“如果……那么……”,用于祈使句后,表示条件与结果的关系。Knock on the door, and it will be opened.
Come late again, and you’ll be fired.
but
◇但是,可是,而,却。
He is in poor health, but he still kept working.
◇用在表示歉意的话后,引起一个分句,这个but通常不译成汉语。
Excuse me, but can you tell me how to get to the railway station?
◇不与although/though (“虽然,尽管”)连用。
Though he is old, he works hard.
He is old, but he works hard.
◇作介词,表示“除了……之外”。
She did nothing but watch TV.
or
◇“一般疑问句+ or+被选择的部分”构成选择疑问句。
Do you like apples or pears?
Would you like tea or coffee?
◇“祈使句+or +陈述句”,表示“……,否则,……”
Hurry up, or you will be late.
Work hard, or you cannot pass this exam.
◇“和”,否定句中代替and。
I don’t like bananas or pears.
◇or 连接并列主语时,谓语动词的人称要与最后的那个主语保持一致。
Either you or he is right. 要么你要么他是对的。
◇or so 大约,左右
I’ll be there in an hour or so.
同步练习:
1.Hurry up, _________ you’ll be late for school.
2.Who’s the youngest, Rose, Helen ________ Betty?
3.Work hard, ______ you will succeed.
4.Excuse me, _______ could you tell me the way to the post office?
5.I’ll see you either on Monday _______ on Tuesday.
6.Put your coat on ______ you’ll be cold.
7.I’m sorry, _______ could you repeat that, please?
8.There is no one here ______me.
9.She can do anything _______sing.
10.The sky is blue ________ everything is beautiful.
11.We were very tired _______ we were very happy.
12.He never smokes ________ drinks.
13.There is no air ______ water on the moon.
14.Your classroom is clean _______ tidy.
15.My house is small _______ lovely.
16.Lucy worked hard at English ______ she came first in the English exam.
17.It is hot today, ______ some boys are still playing basketball outside.
18.People can’t live without air _____ water.
19.The Summer Palace is large _______ beautiful.
20.He looks tall and strong ______ he is afraid to go out at night.
21.We had no water ______ food at that time.
22.Hurry up! ______ we will be late!
e on! _______ you will win the match.
24.Be careful! _______ you will hurt yourself!
25.He usually goes to school by bus ______ by bike.
江苏13城市中考试题汇编:
( ) 1. We didn't enjoy the picnic _______ there was a sudden rain. (08连云港)
A.if
B. but
C. because
D. however
( ) 2. Work hard, _____ you'll pass the English exam this time. (08扬州)
A.or
B. but
C. because
D. and
( ) 3. He was sure his Dad would beat him, but his father didn't. ______, he picked up his crying son and kissed him. (08淮安)