1. Unit 4 Our world Topic 1 Plants and animals are important to us. 制作 林晓云 Section A

2. hen rabbit goose cow sheep mouse

3. The hen is smaller than the dog. The dog is smaller than the pig.. The pig is bigger than the dog. The hen is the smallest of all. The pig is the biggest of all. The dog is bigger than the hen.

4. The rabbit is shorter than the dog. The dog is shorter than the horse. The dog is taller than the rabbit. The horse is taller than the dog. The rabbit is the shortest of all. The horse is the tallest of all.

5. strong ----stronger -----the strongest big -----bigger -------the biggest small ----smaller------the smallest tall ----taller --------the tallest short---shorter----the shortest

6. 单音节，双音节 形容词比较级（ - er ）和最高级（ - est ）的规则变化。 1 一般在词尾直接加 er/est: tall—taller—tallest 2 以 e 结尾的单词去 e 加 er/est: wide---wider---widest 3 以辅音字母加 y 结尾的单词，把 y 改成 i, 再加 er/est: busy – busier---busiest 4 以重读闭音节结尾，且末尾只有一个辅音字母的单词，双写末尾 的辅音字母，再加 er/est : big---bigger---biggest (fat,thin,red, hot)

7. Adjectivestrongtallnicebravebigfatthinlovelyugly comparativestrongernicerbiggerthin ner ugl ier superlativestrongestnicestbiggestthin nest ugl iest tall er tall est braver brave st fatt er fatt est lovelier loveliest Fill in the blanks :

8. Look! The hens are much/a little smaller than the cws/geese. The mice are the smallest of them. Example: geese hens ducks rabbits mice cows sheep

9. Work alone ( ) 1. There are many animals on the farm. ( ) 2.The dogs are the bravest animals on the farm. ( ) 3. Michael likes chickens best. ( ) 4. Michael thinks dogs are much more clever than cats. Listen to the conversation and make True(T) or False (F). T T F F

10. The river is clean in the picture. The trees are green in the picture. The sky is blue in the picture. The air is fresh in the picture.

11. The river is dirty in the picture. The air is dirty in the picture. The road is wide. But the road is busy in the picture.

12. The river is cleaner in the countryside than in the city. The trees are greener in the countryside than in the city. The sky is bluer in the countryside than in the city. The air is fresher in the countryside than in the city. It is quieter than the city Where do you like to live better, a countryside or a city? Why?

13. Hey, Wang Wei, What are you thinking about? Oh, I’m thiking about life in the countrisite.

14. Do you like the countrysite? Yeay, I like it very much. In the countrysite, the air is fresher,

15. the sky is bluer, and there are also greener trees and clearer rivers.

16. It’s quieter, too. People can enjoy nature there.

17. Where does Wang Wei like to live better,a countryside or a city? Why? Fill in the blanks with the correct words according to 1a. Wang Wei likes the countryside very much. He thinks the air is_________, the sky is_______ and there are also _________ trees and ________ rivers there. Michael thinks it is_____________,too. People can enjoy _______ there. Wang Wei goes there for his summer vacation every year. fresher bluergreener clearer quieter nature

18. Summary: 1 形容词比较级，最高级的规则变化。（ er/est ） 形容词比较级，最高级的规则变化。（ er/est ） 2 形容词比较级，最高级的用法。 ( 比较级用于两者之间， 形容词比较级，最高级的用法。 ( 比较级用于两者之间， 最高级用于三者或三者以上且前面加 the 。 ) 最高级用于三者或三者以上且前面加 the 。 ) 3 学会用形容词比较级，最高级来表达自己对城市， 农村或动物的喜爱原因。 4 学习动物名称和特点。

19. Homework : 1 抄写本节的单词、短语和背诵 1a 对话。 2 复习形容词比较级，最高级的规则变化和用法。 3 写 8---10 句关于农村和城市的对比的短文。 4 完成练习册 Section A 内容。