仁爱版八年级上册unit4Our World.ppt

Unit 4 Our WorldTopic 1 We share the world with plants and animals.Section A11级5班王蓓蓓sky 天，天空What can we see in the countryside?What can we see in the countryside?Rose 玫瑰What can we see in the countryside?hen 母鸡What can we see in the countryside?sheep 绵羊What can we see in the countryside?goose 鹅 geesecow 母牛，奶牛rabbit 兔子cow>rabbitsheep>rabbit形容词的比较级与最高级comparative and superlative degrees of adjectives1.比较等级的含义形容词的三个比较等级：1）原级(positive degree),即原形；2）比较级 (comparative degree)表示“较……”或“更……一些”的意思 ；3）最高级( superlative degree)表示“最……”的意思。

表示两者的比较时用比较级如：Cats are more lovely than other animals. 表示“最……” 时用最高级如：The rabbit is the smallest of them.形容词的比较级与最高级comparative and superlative degrees of adjectives2.形容词比较等级的规则变化单音节词和少数双音节词 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.形容词的比较级与最高级comparative and superlative degrees of adjectives部分双音节词和多音节词 在词的前面加more 或 most 例如：difficult— more difficult—most difficult; interesting---more interesting---most interesting形容词的比较级与最高级comparative and superlative degrees of adjectives 有些形容词的比较级的等级变化时不规则的原级比较级最高级good/wellbetterbestbad/illworseworstmany/muchmoremostlittlelessleastfarfurther/fartherfurthest/farthestoldolder/elderoldest/eldest3.形容词比较级等级的基本用法1）原级：常用“as+原级+as”结构。

如： This book is as interesting as that one.这本书和那本书 一样有趣 2）比较级：常用于“比较级+than”结构如： She is more beautiful than her friend.她比她的朋友漂亮 3）最高级：常用“the +最高级+比较范围”结构，比较范围 为短语或从句如： I think roses are the most beautiful of all the flowers.我 认为玫瑰花在所有花中最漂亮PracticeAdjectivestrongtallnicebrave fatthinuglycomparativesuperlative写出下列形容词的比较级和最高级strongerstrongesttallertallestnicernicestbraverbravestfatterfattestthinnerthinnestuglierugliest1a Look, listen and sayMichael: Hey, Wang Wei, what are you thinking about ? Wang Wei: Oh, I’m thinking about life in the countryside. Michael: Do you like the countryside ? Wang Wei : Yeah, I like it very much. In the countryside, the air is fresher, the sky is bluer and there also greener trees and clearer rivers. Michael: It’s quieter too. People can enjoy nature there. Wang Wei: My grandma lives in the countryside. So I go there for my summer vacation every year. Michael: That must be fun.The ducks ____ _____ _____ the geese.The pig_____ _______ ______ the geese.are smaller thanare bigger thanLet’s talk about the other animals on the farmsmall or big The hens ____ _____ _____ the mice. The geese ____ ____ _____ the hens. The geese ______ _____ _____ of all.are bigger thanare bigger thanare the biggestPair workExample: A: Where do you live, the countryside or the city? B: The countryside/city. A: Do you like it? why? B: Yes, I do./ No, I don’t. Because it’s quieter than the city./ noisier than the countryside.cleaner, quieter, fresher, dirtier, noisier, greener, taller, busier, wider.Learn the following words and practice conversations with your partner according to the example.Now look at the pictures and say something about the countryside .The sky is blue.The trees are green.It’s quiet in the countryside.The river is clear.Now look at the pictures and say something about the city. The air is dirty.The buildings are tall.It’s noisy in the city.The roads are wide.countrysidecityThe 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.than that in the city.fresherbluerclearergreenerIt’s quieter in the countryside than in the city.Multiple choice• 1. Bob is ________( young ) than Fred but__________ (tall) than Fred. • 2. He is ______ (bad) at learning maths . He is much _______ (bad) at Chinese and he is the _________ (bad) at English. • 3. Annie says Sally is the ________ (kind) person in the world. • 4 .A dictionary is much_________ (expensive) than a story-book. • 5. An orange is ______ (big) than an apple, but much ________ (small) than a watermelon. • 6. Playing computer games is______ _____ _____ of all the activities. (interesting).youngertallerbad worseworstkindestexpensivebiggersmaller the most interestinghomework• Write an essay about differences between the countryside and the city. • About 150 words.。