- 单词解释
- 用法辨析
- 常用短语
- 英英解释
- 相关例句
- 中考考点
- 高考考点
- and,or,but,for
and, or, but, for均属连词中的并列连词,是连结单词、短语、从句或句子的虚词, 在句子中不单独作句子成份。
1)连接并列的词与词,短语与短语,句子与句子。
[例]
Rice and potatoes are common foods. (词与词)
Today we can travel by plane. (短语与短语)
Many trees lose their leaves in winter, but evergreen trees do not. (句子与句子)
2)关联连词是一类成对使用的连词
如:both……and……, not……but…… ,not only……but also…… not only…but… as well
either……or…… neither……nor……
关联连词必须后接同样的语法结构。
如:Either the windows were opened or the door was opened.
3)从属连词 如:that, whether, when, because, though 等, 用以引导名词性从句和状语从句。 从属连词引导的从句不可以被断成一个句子。
如:When the alarm clock rang. (不完整)
4) though (although)引导让步状语从句,because 引导原因状语从句, 所以though(although)不能和并列连词but ,because 不能和并列连词 so一起使用,只能单独使用。
中考复习中我们还应注意到:
(1) 表示选择关系的连词,连接的双方只取其一。常用连词有or, either...or, otherwise 例如:
1)You can go to Beijing either today or tomorrow.
2)You must get up early or you won’t catch the early bus.
(2) 表示转折关系,连接的双方构成对比,意义上有转折。常用连词有but, however, while, only 例如:
1) His brother is fond of football while he likes basketball.
2) You can watch TV, but you must finish your homework first.
(3) 表示联合关系,联合的双方是对等的,意义上趋向一致。常用连词有:and, both...and, neither...nor, not only...but also, as well as, together with 例如:
1) To study English well, we need both diligence and careful.
2) That horse is not only the youngest among the five, but also runs the fastest.
(4) 表示因果关系,连接的双方,互为因果,或者前因后果,或者前果后因。常用的连词有:for, so, therefore 例如:
1) It must have rained, for the ground is wet.
2) You are in the right, therefore they should support you. - 更多相关短语..
- more or less
[中考]有点 - sooner or later
[中考]迟早 - give sb. sth. or give sth. to sb.
[中考]给某人某物 - an hour or so
[中考] 大约一小时 - or rather
[高考]更精确地说,倒不如说 - or so
[大学]约莫,大约…左右 - or else
[大学]否则,要不然 - early or late
[大学] 迟早 - first or last
[大学] (古)迟早,早晚 - come hell or high water
无论困难多大 - common or garden
adj.平凡的 - by hook or by crook
千方百计地,不择手段地 - give or take
v.允许有...的小误差 - or circuit
【计】 "或"电路 - a state in northwestern United States on the Pacific
[同] beaver state , or , oregon - a room in a hospital equipped for the performance of surgical operations
[同] operating room , operating theater , operating theatre , or , surgery
[例]
great care is taken to keep the operating rooms aseptic - 更多相关例句..
- To deprive of strength or vigor;weaken.
减弱力气或力量;使虚弱 - A dilute or weakened condition.
稀释稀释或变弱的状态 - The stoppage of bleeding or hemorrhage.
止血阻止流血或大出血 - We can go by tube or we can catch a bus.
我们可以乘地铁或乘公共汽车。 - To reduce to or organize according to a method;systematize.
使有条理使条理化或按照一定条理来组织;使系统化 - Statues are molded out of clay or bronze.
雕像是用粘土或青铜塑[铸]成的。 - A serum-filled blister formed in or beneath the skin.
疱在皮肤里或下层的一种满含血清的水疱 - An alley or lane is a narrow street between buildings.
alley和lane均指小街或小巷. - To crush together or press into wrinkles;rumple.
挤压挤在一起或压出皱纹;弄皱 - Meal made from oats;rolled or ground oats.
燕麦制品燕麦制成的膳食;燕麦片或燕麦粉 - 中考综合测试题 数词
Which is bigger, the sun _______ the moon?
A.or
B.and
C.but
D.so
请选择您的正确答案 - 中考综合测试题 数词
Lucy has seen the film, _______ Lily hasn't.
A.and
B.or
C.but
D.so
请选择您的正确答案 - 中考综合测试题 数词
Hurry up, _______ we will miss the train.
A.but
B.and
C.or
D.so
请选择您的正确答案 - 中考综合测试题 数词
Study hard, _______ you're sure to have a good result in the exam!
A.but
B.and
C.for
D.or
请选择您的正确答案 - 2008年河南中考模拟试题
Hurry up, _____ you will miss the class. It’s only ten minutes left.
A.and
B.so
C.however
D.or
请选择您的正确答案 - 2008年全国II高考真题
Stand over there ___ you'll be able to see the oil painting better.
A.but
B.till
C.and
D.or
请选择您的正确答案 - 2005年北京高考真题 状语从句
Lose one hour in the morning ___you will be looking for it the rest of the day .
A.but
B.and
C.or
D.so
请选择您的正确答案 - 2007年湖南高考真题
Reality is not the way you wish things to be, nor the way they appear to be, _________ the way they actually are.
A.as
B.or
C.but
D.and
请选择您的正确答案 - 2005年辽宁高考真题 连词的用法
Follow your doctor’s advice, __________your cough will get worse.
A.or
B.and
C.then
D.so
请选择您的正确答案 - 2007年北京高考真题
You have failed two tests.You'd better start working harder,____you won't pass the course.
A.and
B.so
C.but
D.or
请选择您的正确答案
