1、- 1 -第一章 BE 动词的用法1-1 名词+IS+ 名词：单数名词+ IS+ 名词(a)Canada is a country在(a)中：单数的意思是“一个”Canada 为单数名词；is 为单数动词；country 为单数名词(b)Mexico is a country. 在(b)中：a 经常用在单词名词前。在此例中，a 放在单词名词 country 前面。a 被称作“冠词 ”。(c)A cat is an animal. a 和 an 意思相同，它们均为冠词， a 用在以 b, c, d, f, g 等辅音开头的单词前。例如：a bad, a cat, a dog, a friend,
2、 a girl. An 用在以元音开头的单词前。五个元音字母：a. o, e, i, u.例如：an animal, an ear, an island, an office.Exercise 1 Sentence practiceDirections: Complete the sentences. Use an article (a or an)1. horse is animal.2.English is language.3.Tokyo is city.4. Australia is country.5. Red is color.6. dictionary is book.7. ho
3、tel is building.8. bear is animal.9. bee is insect.10. ant is insect.- 2 -Exercise 2. Sentence practice.Directions: Complete the sentences. Use a or an and the words in the list.animal country language city insect sport1. Arabic is .2. Rome is .3.A cat is .4. Tennis is .5. Chicago is .6. Spanish is
4、.7. Mexico is .8. A cow is .9. A fly is .10. Baseball is .11. China is .12. Russian is .Exercise 3 Lets talk: small groups.Directions: Work in small groups. Choose a leader. Only the leaders book is open.Example: a languageLeader: Name a language.Speaker A: English is a language.Speaker B: French is
5、 language.Speaker C: Japanese is a language.(Continue until no one can name another language) 1. an animal 2. a color 3. a sport 4. a country 5. an insect 6. a city1-2 名词+are+名词：复数名词+are+名词 复数的意思是“两个、三个或更多” 。- 3 -(a) Cats are animals 在(a)中：cats 为复数名词；are 为复数动词；animals 为复数名词。(b)单数:a cat, an animal复数:
6、 cats, animals复数名词以-s 结尾a 和 an 只和单数名词连用(c) 单数：a city, a country复数：cities, countries一些以-y 结尾的单数名词有特殊的复数形式：及去掉-y 再加-ies名词 和 名词+ are +名词(d) Canada and China are countries.(e) Dogs and cats are animals两个有 and 连接的名词后面要有 are. 在此例中，Canada 是一个单数名词， China 是一个单数名词，它们有 and 连接在一起后就是复数，表示“不止一个” 。Exercise 1 Sente
7、nce practiceDirections: Change the singular sentences to plural sentences.Singular plural1. An ant is an insect. Ants are insects. 2. A computer is a machine. 3. A dictionary is a book. 4. A chicken is a bird. 5. A rose is a flower. 6. A carrot is a vegetable. 7. A rabbit is an animal. 8. Egypt is a
8、 country. 9. Winter is a season. 10. Summer is a season. Exercise 2 GameDirections: Work in small groups. Example: Teacher: Spanish- 4 -Group: Spanish is a language.1. A bear. 2. September and October. 3. China.4. An ant 5. Mexico and Canada. 6. Winter and summer.7. London. 8. Arabic. 9. Spring.10. A dictionary. 11. A computer. 12. A carrot.13. Chickens. 14. A fly.Exercise 3 Lets talk: pairwork.Directions：
