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语法专项六—连词
一、连词的定义:连词是连接字、短语、从句与句子的词,是虚词,因此它不能独立担任句子成分。
二、连词的分类:连词主要分为两大类——并列连词和从属连词。
三、并列连词:并列连词用来连接并列关系的词、词组或分句。
它包括:and,or,but,so,for,both…and,either…or,neither…nor,not only…but also, as well as.
(1)表并列关系的and, both…and, not only…but also, neither…nor, as well as
(2)表选择关系的or, either…or
(3)表转折关系的but
(4)表因果关系的for, so
1、 and:和,并且
(1)表示“和”、“而且”的意思,用来连接对等关系的字和字,短语与短语,句子与句子。
Eg: He got up and put on his hat. Eg: I went to the Summer Palace and he went to Bei Hai Park.
(2)单词或词组如果是三个以上连接,一般在最后的单词或词组前加and。另外“and”在译成中文时不一定要翻译出“和”
Eg: Mary visited Beijing , Shanghai and Hong Kong.
(3)and用于祈使句中,句型:祈使句,and…=If you…, you'll…
Eg: Use your head,and you'll find a way.=If you use your head,you'll find a way.
Eg: Hurry up,and you'll catch the bus.=If you hurry up,you'll catch the bus.
2、or:或,或者,否则
(1)or表示“或”的意思,用于两者之中选择一个。 Eg: Would you like coffee or tea?
(2)注意“A or B”作主语时,谓语动词随or后面的词(B)而定。
Eg: Tom or I am right. Eg: Li Ming or his classmates are cleaning the room.
(3)用于祈使句中,句型:祈使句, or…=If you don't…, you'll…译成“请…,否则…”,
有转折的意思。
Eg: Hurry up,or you'll miss the bus.=If you don't hurry up,you'll miss the bus.
Eg: Study hard,or you'll fail in the exam.=If you don't study hard,you'll fail in the exam.
3、but:但是,可是,而
(1)但是,而,可是。表示转折关系。
Eg: He is old,but he looks very young. (but 后面省略了主语Li Li,因为与前面的主语成分相同)
Eg: Mary likes violin, but Tom doesn't. (doesn't后面省略了like violin,因为与前面的成分相同)
(2)在英文中,but和although不能在一起使用。
Eg: Although it was raining hard , but they went on working. (错)
Eg: It was raining hard ,but they went on working.(对) Eg: Although it was raining hard, they went on working.(对)
4、 so, for
(1)so:所以,因此,于是
Eg: My teacher asked me to go,so I went.
(2)so除了作连词外,也可以作副词。
Eg: I hope you can pass the exam. I hope so. Eg: Don't walk so fast.
(3)for:因为
Eg: I soon went to sleep, for I was tired. Eg:The sun has risen,for the birds are singing.
5、both…and:和,既……也……(两者都)
(1)both…and…构成的词组作为主语时,谓语动词用复数。
Eg: Both Li Ming and Li Li are good students.
(2)both…and的否定句表示部分否定。
Eg:He can't play both the violin and the piano.(不全会)
Eg: Both Li Ming and Li Li are not good students.(其中一个是好学生)
6、either…or和neither…nor
(1)either…or:或……或……;不是……就是……
1)either…or…构成的词组作为主语时,谓语动词随其邻近的词,即or后面的词而定。(就近原则)
Eg: Either you or he is right. Eg:Either my sister or my mother comes.
2)either···or的否定句是全否定。
Eg: Either you or he isn't right. 你和他都不对
Eg: I don't want to visit either Tianjing or Shanghai.天津和上海我都不想参观。
(2)neither…nor:既不……也不……
1)构成的词组做主语时,谓语动词的用法和either…or的用法一样,由nor后面的词而定。
(就近原则)
Eg: Neither you nor I am right. Eg: Neither you nor he was selected for the job.
2)neither···nor 是全否定,因此不能再用否定式,即不能再加not。
Eg:(×)Neither You nor I am not right.
7、not only… but also:不但……而且
not only…but also构成的词组担任主语时,谓语动词随 but also后面的部分而定。(就近原则)
Eg: Not only you but also your father is coming.
Eg: Not only the teacher but also the students were against the plan.
8、as well as : 又、不但···而且
(1)as well as 构成的词组担任主语时,谓语动词随前面的词而定。(就远原则)
eg: Jim as well as his parents joins in the party.
(2)该句型可以和“not only…but also”互换,not only A …but also B = B as well as A ,前者强调的是B, 在not only之后,后者强调的也是B,在as well as之前。翻译时,要先翻译as well as 后面的词。
Eg: The child is not only healthy but also lively = The child is lively as well as healthy.
这孩子既健康又活泼。
四、从属连词:从属连词用来引导从句,它包括: that, when,while , as, till, until, after, before, since,because,if, though,although,so…that,as soon as
常见的从属连词有:
1、 that:
(1)that引导名词性从句(主语从句、表语从句、宾语从句和同位语从句)和定语从句,
Eg: I think(that) he likes football.
(2)如果主句的动词是 think, believe…;如果主句的主语是第一人称,变为否定句时,要否定主句,译成中文时,则否定从句。(否定前移)
Eg: I believe you will leave here. Eg: I don't believe you will leave here.
2、 when,while,before, after , as soon as ,till, until , since…
when, while, till, until, since, after, before, as soon as等是连接时间状语从句的连词。当主句是将来时,从句要用一般现在时。
(1)注意while所引导的从句的谓语动词只能是延续性的,不能用点动词。(如begin,stop…)
Eg: While I read, she sang. Eg: I entered the room while(when) Li Ming was talking with her.
(2)since引导的是一个过去时的句子,说明自当时以来到现在(自从两年前以来),主句一般要用现在完成时。
Eg: I have learned more than two thousand English words since I began learning English two years ago.
(3)till和until若主句的动词是终止性动词,则要用否定式。
Eg: I didn't go to sleep until(till)I finished my homework.
Eg: We won't work until(till) our teacher teaches us how to do it.
Eg: He stayed there till / until his mother came back.
(4)Eg: When he arrives there, he will call you.
Eg: He came to China after the war was over.= The war was over before he came to China.
Eg: As soon as I get the present, I’ll tell you.
3、because:因为,连接原因状语从句
(1)回答Why问句时,只能用because,不能用for或 as.
Eg: Why are you late? Because I met a traffic accident on my way here.
(2)汉语中,我们经常说因为……所以,但在英文中有了because,就不能再用so。
Eg: (×)Because he was tired, so he couldn't walk there.
4、if,though (although)
(1)if:如果(引导条件从句)
Eg: You can pass the exam if you study hard.
(2)though,although:虽然(引导让步状语从句)和原因状语从句一样,如果用了though,although (虽然)就不能再用but(但是)。
Eg: Although(Though) I live near the sea, I'm not a good swimmer.
=I live near the sea,but I'm not a good swimmer.
5、so…that:太……以致……
若that 后跟的从句是否定从句,可以与too···to互换。
Eg: He is so old that he can't work. = He is too old to work.
Eg: The box is so heavy that I can't lift it.=The box is too heavy for me to lift.
Eg: The girl is so beautiful that everybody likes her.
注意注意此句型与too…to的互换。so…that在肯定句中不能转换成too…to…。
代词专项习题
1. Going to the movies is good,________ I really only like listening to music.
A. and B. but C. so D. or
2. The tomato is in fact a fruit,________ it is eaten as a vegetable.
A. because B. if C. when D. although
3.Get up early,________ you’ll be late for school.
A.so B.and C.or D.but
4.________ my cousin is very young,________ she can help with the housework.
A. Once;不填 B.Though;but C. Although;不填
5. I will be very happy ________ you come to my party.
A. if B. though C. or
6. He had a bad cold,________ he kept on working as usual.
A. so B. but C though
7. —What happened just now?—A car hit an old lady at the crossing. She was hurt,________ not badly.
A. and B. or C. only D. but
8. ________ I live in a safe community,I still feel a little worried when I go out at night.
A. Although B. Since C. Until
9. Be quiet,my kids,________ you will have to stay outside,because this is a library.
A. and B. because C. or D. but
10. Be careful,________ you’llmake fewer mistakes in the exam.
A. or B. but C. and
11. Rose,you are so thin. You should eat more,________ you’ll make yourself ill.
A. or B. if C. and D. but
12. —You won’t pass the exam ________ you don’t work hard. —OK,I’ll do my best.
A. and B. but C. if D. so
13. A: Do you like popular songs?B: Yes,I do.________ I’m too busy to enjoy them.
A. But B. So C. And
14. Work harder,________ you will not keep with others.
A. and B. or C. so
15.________ the winter in Harbin is rather cold,the city is still attractive to the visitors throughout the world.
A. Although B. But C. So
16. Be quick,________ we’ll be late for school.
A. and B. but C. or D. so
17. You’d better take care,________you will hurt your eyes.
A. so B. but C. or D. and
18. —I hear Tom is leaving. —________ why?
A. And B. But C. Or D. So
19. Hurry up,Tom,________ we’ll be late for the film Dearest.
A. or B. but C. and D. so
20. Leave the reference books behind,________ you won’t be able to think independently.
A. or B. and C. so D. but
21. can help us travel around more easily. ________ more and more people like using them.
A. Or B. So C.And D. But
22. —It is raining hard,________ the farmers are still working in the field. —So they are.
A. and B. but C. so
23. Write down the telephone number,________ you’ll forget it.
A. or B. and C. so
24. You’d better wake up Tom at 6:30,_______ he will be late for the match.
A. if B. or C. and D. but
25. — Hello,Joyce,you are busy. Can I give you a hand?—Thanks very much,________ I can manage.
A. and B. or C. so D. but
26. Mike did something wrong, _______ the headmaster is talking with him.
A. so B. but C. and D. or
27. –Excuse me. Do you have a table for two?
--I’m sorry, ______ there aren’t any seats now. Would you mind waiting for a while?
A. but B. and C. or D. so
28. Stop cutting trees, _______ the earth will become worse and worse.
A. and B. but C. or D. then
29. Do you want to stay at home _______ go shopping with us?
A. and B. but C. or D. so
30. The song was _______ old _______ few young people could sing.
A. enough; to B. so; that C. as; as D. too; to
31. Mr. Brown knows little Japanese, _______ he can’t understand the instructions on the bottle of the pills.
A. so B. or C. but D. for
32. __________the soldiers _________the captain have been to Greece before.
A. Both…and B. Not only…but also C. Neither…nor D./….as well as
33. _______ my mother ________ my sister watches football games these days.
A. Either; nor B. Both; and C. Neither; nor D. Neither; or
34. Mr. Smith is an English teacher _______ will teach us English next term.
A. or B. and C. but D. so
35. I may live _______ in a hotel _______ in a friend’s house.
A. both; and B. either; or C. neither; nor D. between; and
36. I’m sorry, _______ I can’t help you with your homework. You’d better do it yourself.
A. and B. but C. or D. then
37. I think we should get this liquid crystal computer, _______ it won’t take up more space.
A. but B. although C. because D. so
38. Stop smoking, _______ you will get better soon.
A. and B. or C. that D. after
39. We bought Mary a pair of sunglasses as her birthday present, _______ she didn’t like it.
A. and B. but C. or D. so
40. It was very late, _______ the students still went on repairing their desks and chairs.
A. and B. or C. so D. but
41. Though we teachers have _______ money _______ time, we should still be responsible for the students.
A. both; and B. neither; nor C. either; or D. not; but
42. Surf the internet, ________you’ll get the information that you need.
A. and B. or C. but D. although
43. Which of the two English dictionaries will you buy?I will buy _____ of them , so I can give one to my friend, Helen.
A. either B. neither C. both D. all
44. _____ Tom _____ Mary is busy. You’d better play with others.
A. Both, and B.Neither, nor C. Either, or D. Not only, but also
45. We love spring _______there are beautiful flowers everywhere.
A. although B. because C. but D. or
46. Mary ordered an MP3 player from internet _________she could save a lot of time.
A. so that B. though C. in order to D. as soon as
47. Bob spends a lot of money on books________he is not rich.
A. if B.though C. because D. but
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