1、Unit 4 Our World,Topic 1 Whats the strongest animal on the farm?,Section A,a sheep,some sheep,What can we see in the countryside?,a goose,some geese,What can we see in the countryside?,a mouse,some mice,What can we see in the countryside?,1b,Listen to 1a and check the words you hear.,_ fresher _ bus

2、ier _ bluer _ taller _ bigger _ clearer _ nicer _ quieter _ noisier,Now, look at the pictures and say something about the countryside and the city.,錄音1a-P81,Wang Wei likes the countryside very much because he thinks the air is _, the sky is _ and the rivers are _ there. Michael thinks the countrysid

3、e is much _ than the city, too, so people can enjoy the beauties of nature. Wang Wei goes to the countryside every year for his summer holiday.,fresher,bluer,clearer,quieter,Listen again and fill in the blanks. Then read it aloud.,所填單詞有什么特點(diǎn)？,Answers to 2a: taller stronger shorter nicer cuter better,

4、Lets talk about the other animals on the farm.,countryside,The air is fresh.,The sky is blue.,The trees are green.,The river is clear.,Its quiet in the countryside.,The air is dirty.,The river is dirty.,city,The buildings are tall.,The roads are wide. The traffic is busy.,Its noisy in the city.,The

5、air in the countryside is _ The sky in the countryside is _ The river in the countryside is _ The trees in the countryside are _ than those in the city. Its _ in the countryside than in the city.,than that in the city.,greener,quieter,fresher,bluer,clearer,單音節(jié)及部分雙音節(jié)形容詞比較級(jí)（- er）和最高級(jí)（- est）的規(guī)則變化。,下列形容

6、詞比較級(jí)和最高級(jí)變化有什么規(guī)律？,2b,單音節(jié)及部分雙音節(jié)形容詞比較級(jí)（- er）和最高級(jí)（- est）的規(guī)則變化。,1. 一般在詞尾直接加er/est: talltallertallest 2. 以e 結(jié)尾的單詞去e加er/est: widewiderwidest 3. 以輔音字母加y結(jié)尾的單詞，把y改成i, 再加 er/est : busybusierbusiest 以重讀閉音節(jié)結(jié)尾，且末尾只有一個(gè)輔音字母的單 詞，雙寫末尾的輔音字母，再加er/est : bigbiggerbiggest , (fat, thin, red, hot) 重讀閉音節(jié)：1）一個(gè)元音字母+一個(gè)或幾個(gè)輔音字母 2

7、）元音字母不發(fā)本音 3）以一個(gè)輔音字母結(jié)尾 5.多音節(jié)詞前加more,most: beautiful-more beautiful-most beautiful. 含一個(gè)元音的詞叫作單音節(jié)詞，含兩個(gè)或兩個(gè)以上元音的單詞叫作雙音節(jié)或多音節(jié)詞。：,單音節(jié)及部分雙音節(jié)形容詞比較級(jí)（- er）和最高級(jí)（- est）的規(guī)則變化。,下列形容詞比較級(jí)和最高級(jí)變化有什么規(guī)律？,taller,tallest,braver,bravest,fatter,fattest,thinner,thinnest,uglier,ugliest,2b,寫出下列形容詞的比較級(jí)和最高級(jí)。,short _ _ small _ _ l

8、arge _ _ late _ _ happy _ _ easy _ _ hot _ _ hard _ _ cute _ _ dirty _ _ interesting_ _ useful_ _,shorter shortest,smaller smallest,larger largest,later latest,happier happiest,easier easiest,hotter hottest,harder hardest,cuter cutest,dirtier dirtiest,more interesting most interesting,more useful mo

9、st useful,small big,The mice are smaller than the hens.,The hens are smaller than the geese.,The mice are the smallest of all.,？,？,The hens are bigger than the mice.,The geese are bigger than the hens.,The geese are the biggest of all.,small big,？,？,thin,The ducks are a little thinner than the geese

10、.,The ducks are much thinner than the pigs.,？,thin adj. 瘦的；薄的；稀的,形容詞比較級(jí)最高級(jí)的基本用法,1.同級(jí)比較 兩個(gè)比較對(duì)象程度相同時(shí)，用:as+形容詞原級(jí)+as 例如：Tom is as tall as his brother. 2.比較級(jí)+than的結(jié)構(gòu)前可以加上某些副詞類的詞，以對(duì)其進(jìn)行修飾，如：even（甚至），much/far/a lot（許多）， a little/bit（一點(diǎn)），等等。例如： Shes a little/bit more outgoing（外向） than me. My bike is much/far

11、 newer than his. 3. The +比較級(jí)+ 句子，the + 比較級(jí)+ 句子。意思是：越.越. 朋友越多，我們?cè)介_心。 4.比較級(jí)+ and + 比較級(jí)。意思是:越來(lái)越. 他跑的越來(lái)越快。,5.如果比較對(duì)象相同，可用that、those代替第二個(gè)。 This TV is much more expensive than that in the window。 The houses of the rich are larger than those of the poor 6.the+比較級(jí)+of.意思是：兩者比較時(shí)，較. the+最高級(jí)+of/among/in.意思是：三者以上

12、比較，最. 如：She is the stronger of the two. She is the tallest in our class/among the students/of the students. 7.比較級(jí)與最高級(jí)的互換： 比較級(jí)+than+the other+復(fù)數(shù)名詞 =比較級(jí)+than+any other+單數(shù)可數(shù)名詞=the+最高級(jí) 如：He is the strongest boy in our class,=He is stronger than the other boys in our class,=He is stronger than any other

13、boy in our class,1.This picture is _ than that one. A. beautiful B. more beautiful C. most beautiful D. the most beautiful 2.The Changjiang River is one of _ rivers in the world. A. long B. longer C. longest D. the longest 3.Dont worry. Your mother will get_ . A. well and well B. better and better C

14、. well and better D. good and well 4.We come to school very early, but our teachers come to school_. A. very earlier B. much early C. earlier D. the earliest 5. _ of the two men is my uncle. A. The older B. Older C. The old D. The oldest 6. Do you know_ of the three? A. the tallest B. tallest C. the

15、 taller D. the tall,B,D,B,C,A,A,7._ all the boys in his class. Tom is the shortest. A. In B. For C. From D. Of 8. The Changjiang River is the third _ river in the world. A. long B. longer C. longest D. the longest 9.Which do you like _, tea, orange or water? A. good B. well C. better D. best 10._of

16、the two women is Mrs Brown. A. The beautiful B. The more beautiful C.More beautiful D. The most beautiful 11.My hair is longer than _ A. my sister B. Kate C. my brothers D. Lucys 12.There are_in the park on Sunday. A. more children B. a lot of people C. much men and women D. many peoples,D,C,D,B,C,B,Look at the picture and choose the correct word for each animal. Then make conversations with the adjectives in 2b.,Pair work,3,horse pig cow cat sheep mouse hen goose duck dog rabbit,Example :,( One day, the animals on the farm were talking.) Dog : Im t