教科版（广州）英语五年级下册连词专题专项提升 讲义+练习（无答案）

2023-2024学年五升六英语第六讲：连词专题专项提升（教科版）
一、连词基础知识
1.连词的定义和分类
1) 定义：连词是用来______词与词、词组与词组或句子与 、表示某种逻辑关系的虚词。
2) 分类：连词可以表__________（如：and）、__________（如：then）、__________（如：but）、__________（如：because、so）、__________（如：or）、__________（如：if）、__________（如：than）、__________（如：though）等关系。连词从结构上还可以分为两大类：_______连词（如：and，or，so）和__________连词（如：when）。
2.并列连词: and, or, but, so的用法
1) and意为 “______、________”，表________。连接谓语时，两个动词形式要________。
Mary and Tom are both from England.
Tom likes singing and dancing.
2) or意为“__________、__________”，表示“和”时，用于__________（肯定/否定）句。
It isn’t a ball or a pet.
Hurry up, or you will be late.
3) but意为“__________、__________“，表__________。
I like the dress, but it is a bit too expensive.
Meat is delicious, but don’t eat too much.
4) so 意为“________”，表_______（原因/结果），_______（不能/能）与because连用。
I had a headache, so I went to bed early.
I was hungry, so I ate three hamburgers.
小练笔：
1. Chocolate is the most preferred gift in the US __________ it is common in Japan, too.
A. or B. and C. but D. so
2. He is old , __________ he still works hard.
A. or B. and C. but D. so
3. Sally doesn’t like playing tennis __________ badminton.
A. or B. and C. but D. so
4. It is raining outside, take an umbrella with you, __________ you will get wet.
A. or B. and C. but D. so
5. Michael had a bad cold yesterday, __________ he didn’t go to the party.
A. or B. and C. but D. so
6. Money is very important __________ it’s not the most important thing.
A. or B. and C. but D. so
7. Mr. Li is not a doctor __________ a nurse, but he knows the secret to good health.
A. or B. and C. but D. so
8. Because John was ill, __________ I took him to the doctor.
A. or B. / C. but D. so
9. Come here early tomorrow, __________ you’ll see her.
A. or B. and C. but D. so
10. He had promised to keep the secret, __________ everyone knew about it at last.
A. but B. so C. and D. or
3.从属连词: because，if，when，before，after，until
1) because意为“_______”，表________（原因/结果），______（不能/能）与so连用。
Tom likes English because it’s interesting.
2) if 意为“__________”，表示假设或条件 If it rains, I will stay at home.
3) when 意为“__________”，表示时间 He was watching TV when I got home.
4) before 意为“__________”，表示两个动作发生的前后关系。
Wash your hands before you eat.
5) after 意为“_____”，表示两个动作发生的前后关系。 He does some exercise after lunch.
6) until意为“__________”，表示“直到某个动作发生，另一个动作才发生”。常用于not…until句型，意为 “__________”。I didn’t go to bed until he came home.
小练笔：
1. You’ll do better in English __________ you work harder.
A. so B. or C. if D. until
2. __________ it __________ rain tomorrow, we will go to have a picnic.
A. After; isn’t B. Before; doesn’t C. When; isn’t D. If; doesn’t
3. Carlos didn’t watch TV __________ he finished his homework.
A. so B. when C. because D. until
4. __________ he was a little boy, he was very naughty.
A. If B. Until C. After D. When
5. They kept on working __________ it was dark.
A. If B. Until C. After D. When
6. Please take a shower __________ you go to bed. (用连词填空)
7. Please give the magazine back to me __________ possible. (用连词填空)
8. She didn’t go to bed __________ she finished her work. (用连词填空)
9. Remember to clean up the table __________ you finish your meal. (用连词填空)
限时训练：
1. When you are learning a foreign language, use it, __________ you will lose it.
A. but B. or C. then D. and
2. Piggy couldn’t find his socks, shoes __________ school uniform.
A. but B. or C. then D. and
3. --- I am sorry, Lucy. I can’t go for the picnic this Saturday.
--- __________ you told me you would this morning. What happened
A. But B. For C. As D. So
4. I can’t find my shoes __________ it is dark in the room.
A. but B. and C. because D. then
5. Jim likes apples a lot __________ he doesn’t like oranges at all.
6. Mom, my classmates are waiting outside, __________ I must go now.
A. or B. but C. because D. so
7. Listening to music is relaxing, __________ I like it very much.
A. or B. but C. because D. so
8. We were about to start __________ it began to rain.
A. as B. while C. because D. when
9. Eat more healthy food, ___________ you will be more healthy
A. as B. and C. so D. but
10. 完形填空
Everybody knows that the water that flows through our taps comes from hills, reservoirs (1) __________natural springs (井水) .Two thirds of the world is covered by water. Two thirds of our (2) __________is made up of water . Water is (3) __________ to sustain (维持) life in any form. (4) __________, there are many cases about water pollution on the earth. Yes , water pollution is increasing. Look ! The water in the river is getting(5) __________, because some people throw litter into rivers and seas , (6)__________ cans and plastic bags. Most of the fish in the water have died , (7) __________we can’t swim in the water . People
have to (8) __________ water from the underground (地底) and clean it up for many times . Finally the water becomes (9) __________ water and people can drink it . We should(10) __________ the water from pollution . The water is really important to us all.
(1) A. but B. if C. or D. to
(2) A. body B. life C. environment D. pollution
(3) A. possible B. necessary C. helpful D. useful
(4) A. But B. Or C. And D. However
(5) A. good B. better C. worst D. worse
(6) A. such as B. such C. like D. for example
(7) A. or B. then C. but D. and
(8) A. bring B. drink C. have D. pump
(9) A. gas B. drinking C. liquid D. solid
(10) A. stop B. save C. protect D. look for
完形填空答案：
(1) C; (2) A; (3) B; (4) D; (5) D; (6) A; (7) D; (8) D; (9) B; (10) C