八下Unit 7 new.ppt

1、Unit 7 Whats the highest mountain in the world?,Topic (話題),Talk about geography and nature,Functions（功能語）:,談?wù)摰乩砼c自然,Facts about the world,世界知識(shí),一. Nouns about geography,mountain river lake deserts sea ocean island water fall forest,山川 河流 湖泊 沙漠 海 海洋 島嶼 瀑布 森林,一. Nouns about geography,country province st

2、ate city town village universe space earth star planet man-made satellite,國(guó)家 省 州 城市 鎮(zhèn) 村 宇宙 太空 地球 星星 行星 人造衛(wèi)星,二. Facts about the world.,1. What is the biggest desert in the world? The Sahara. How big is the Sahara? Its about 9,600,000 square kilometers in size.,二. Facts about the world.,2. What is the

3、 highest mountain in the world? The Qomolangma. How high is the Qomolangma? Its 8,844.43 meters high.,二. Facts about the world.,3. What is the longest river in the world? The Nile. How long is the Nile? Its 6,671 kilometers long.,4. What is the deepest salt lake in the world? The Caspian Sea. How de

4、ep is the Caspian Sea? Its 1,025 meters deep.,二. Facts about the world.,5. What is the oldest country in the world? China. How old is China? China is more than 5,000 years old.,二. Facts about the world.,6. What is the tallest animal in the world? The giraffe. How tall is the giraffe? The giraffe is

5、about four meters tall.,二. Facts about the world.,7. What is the heaviest animal in the world? The whale. How heavy is the whale? The whale weighs about 200 ton.,二. Facts about the world.,三. Facts about China,1. What is the longest river in the world? The Yangtze River How long is the Yangtze River?

6、 Its about 6,300 kilometers long.,三. Facts about China,2. What is the longest wall in China? The Great Wall. How long is the Great Wall? Its more than 5,464 kilometers long.,三. Facts about China,3. What is the highest mountain in China? The Himalayas. How high is the Himalayas? Its about 7385 meters

7、 high.,三. Facts about China,4. What is the biggest city in china? Chongqing . How big is chongqing? Its about 82,400 square kilometers in size.,三. Facts about China,5. Which city has the largest population in china? Shanghai . what is the population? Its about 24,260,000.,三. Facts about China,6. Wha

8、t is the most popular animal in china? The panda. How heavy is the panda? It weighs about 100 kilos.,四. Animals in danger,tiger panda wolf elephant whale dolphin lion giraffe zebra monkey,老虎 熊貓 狼 大象 鯨魚 海豚 獅子 長(zhǎng)頸鹿 斑馬 猴子,1.What do they look like? （外貌） They are big.,big/small strong/weak beautiful/ugly

9、fat/thin tall/short grey white and Black brown furry,大的/小的 強(qiáng)壯的/虛弱的 美麗的/丑陋的 胖的/瘦的 高的/矮的 灰色 黑白色 棕色 多毛的,2. What are they like?（性格） They are clever.,friendly / kind unfriendly stupid / silly clever / smart cute/lovely scary shy safe dangerous hard-working lazy quiet noisy interesting,友好的 不友好的 笨的 聰明的 可愛的

10、 可怕的 害羞的 安全的 危險(xiǎn)的 勤勞的 懶惰的 安靜的 吵鬧的 有趣的,3.Where do they live? They live in the forest.,forest jungle woods hill mountain sea ocean water river zoo cage,森林 叢林 樹林 小山 大山 海 海洋 水里 河流 動(dòng)物園 籠子,3.Where do they live? They live in the forest.,pool desert hole the earth the south pole the north pole field fly in t

11、he sky,池塘 沙漠 洞穴 地球 南極 北極 田地 在天空中,4.What food do they eat? They eat bamboos,grass meat bamboo leaves plant small animals fruits vegetables carrots fish,草 肉 竹子 樹葉 植物 小動(dòng)物 水果 蔬菜 紅蘿卜 魚,5. What can they do? They can run.,jump higt run fast swim fly watch the door dig holes catch mice bite people play with

12、 people,跳得高 跑得快 游泳 飛 看門 挖洞 抓老鼠 咬人 和人玩,1.人們經(jīng)常把廢水倒入江河里。 People often pour waste water into rivers and lakes. 2.人們經(jīng)常把垃圾扔到河里。 People often throw rubbish into rivers. 3.工廠制造太多的濃煙。 Factories produce too much smoke. 4.人們砍伐太多的樹木。 People cut down too many trees. 5.小車越來越來多。 There are more and more cars.,三. Wh

13、y are they in danger?,6.人們殺害動(dòng)物為了樂趣、錢、皮草。 People kill animals for fun/money/fur. 7.人們用塑料袋。 People use many plastic bags. 8.人們開車更頻繁。 People drive cars more often. 9.人們使用一次性筷子。 People use throwaway/one-off chopsticks.,四. How to protect them.,1.We should give more food to animals give home to the animal

14、s plant more trees build more zoos keep our earth clean make the laws to protect the wild animals. set up animal-help center.,給動(dòng)物提供更多食物 給動(dòng)物提供家園 多植樹 建更多的動(dòng)物園 保持地球干凈 制定法律保護(hù)動(dòng)物 建立動(dòng)物救助中心,四. How to protect them.,1.We should protect the earth protect the environment stop pollution provide homes for animals

15、in danger,保護(hù)地球 保護(hù)環(huán)境 停止污染 為瀕臨滅絕的動(dòng)物提供家園,A: What is the biggest animal in the world? B: The whale. A: How heavy is the whale? B: It weighs about 200 ton. A: what does it look like? B: Its big , blue and white A: What is it like? B: It is cute and friendly. A: Where does it live? B: It lives in the sea.

16、,Conversation:,A: What does it eat? B: It eats small fish. A: What can it do? B: It can swim and jump high out of water. But they are in danger. A: Why are they in danger? B: Because humans kill them for meat or oil and the water is polluted. A: What should we do? B: We should stop killing them and

17、polluting the water. A: Good ideas.,介紹鯨魚并號(hào)召大家保護(hù)鯨魚。,Whale are huge animals. They are very cute. They live in the sea and eat small fish and other sea life. They can swim fast and jump high out of the water. But now some kinds of whales are in danger because humans catch them for meat, fat and oil and

18、 use them to make candles and soap. Whales are also in danger from water pollution. So we should protect whales from killing and we shouldnt pollute the water any more. We should also learn more about whales.,大多數(shù)形容詞有三個(gè)級(jí)。 1. 原級(jí): Structure : as . as. 像.一樣 e.g. Tim is as tall as Tom. 2. 比較級(jí) (用于兩者之間的比較)

19、: Structure：形容詞比較級(jí) than . e.g. This box is bigger than that one.,形容詞和副詞的比較級(jí)和最高級(jí),3. 最高級(jí)(用于三者或三者以上的比較): Structure: the + 形容詞的最高級(jí)of / in . e.g. Tom is the heaviest in our class. He is the most popular in our school.,規(guī)則變化 1) 一般情況下，單音節(jié)或雙音節(jié)的形容詞/副詞比較級(jí)er， 最高級(jí)est。如: clever cleverer cleverest few fewer fewest

20、 small smaller smallest 等。,形容詞、副詞的比較級(jí)和最高級(jí) 規(guī)則變化和不規(guī)則變化,2) 以e結(jié)尾的詞，比較級(jí)r，最高級(jí)st 即可。 如： nice nicer nicest cute cuter cutest large larger largest 3) 以輔音字母y結(jié)尾的變y為ier或est 如: easy easier easiest happy happier happiest 再如：early, busy, heavy, dirty, lazy 也如此。,4) 重讀閉音節(jié)，單輔音結(jié)尾的，雙寫這個(gè)輔音字母er 或 est的詞： fat fatter fattes

21、t thin thinner thinnest hot hotter hottest red redder reddest wet wetter wettest big bigger biggest,5) 多音節(jié)和部分雙音節(jié)的詞需要在形容詞 原級(jí)前more 構(gòu)成比較級(jí)，the most 構(gòu) 成最高級(jí)。如： beautiful more beautiful the most beautiful 又如: delicious, popular, important, interesting, expensive, creative 雙音節(jié)的詞如: careful more careful the m

22、ost careful useful more useful the most useful,少數(shù)單音節(jié)詞也是這樣，如： pleased more pleased the most pleased tired more tired the most tired b) 不規(guī)則變化： good better best well better best bad worse worst many/much more most,far farther farthest (距離遠(yuǎn)) far further furthest (程度深) old elder eldest (長(zhǎng)幼) old older old

23、est (年齡),三者或三者以上相比，表示最高程度時(shí)，用“the + 最高級(jí)”的結(jié)構(gòu)表示。這種句式一般常有表示比較范圍的介詞短語。例如： Zhang Hua is the tallest of the three. He works (the) hardest in his class.,最高級(jí)的用法,2. 最高級(jí)可被序數(shù)詞以及 much，by far，nearly，almost，等詞語所修飾。例如： This hat is by farmuchnearlyalmost the biggest. How much did the second most expensive hat coat?,

24、3. 表示“最高程度”的形容詞，如 excellent，extreme，perfect等，沒有最高級(jí)，也不能用比較級(jí)。 4. 形容詞最高級(jí)修飾作表語或介詞賓語的名詞、代詞時(shí)，被修飾的詞往往省略。 e.g. He is the tallest (boy) in his class. 5. 作狀語的副詞最高級(jí)前可以不加定冠詞。 e.g. Of all the boys he came (the) earliest.,比較級(jí)考點(diǎn) 比較級(jí)修飾問題a little, a bit, even, still, much, a lot, far 等可修飾比較級(jí)。 e.g. Tom is a little ta

25、ller than Jim. This book is much more interesting than that one.,中考鏈接, 同類比較 e.g. The weather in Beijing is colder than that in Xian. Our school is bigger than yours. the + 比較級(jí) e.g. Lucy is the fatter of the two girls., “a/an + 比較級(jí)”表示“又一，再一” e.g. Lily has a doll, but she wantsa bigger one. 隱性比較（沒有tha

26、n的情況） e.g. Who runs faster, Lucy or Lily? Youd better come earlier next time. He worked hard last term, but he works even harder this term., 越來越. 比較級(jí) + and + 比較級(jí) b. the + 比較級(jí) + 句子，the + 比較級(jí) + 句子: 越越 e.g. Its getting colder and colder. The more you exercise, the better you are.,2. 最高級(jí)考點(diǎn) 說明：形容詞的最高級(jí)前必須

27、加the；副詞的最高級(jí)前省略the。 范圍問題 e.g. Tom is the tallest student in the class. Spring is the best season of the year., “最.之一”問題 e.g. Beijing is one of the biggest cities in the world. “the + 序數(shù)詞 + 最高級(jí)” e.g. I think he is the second tallest boy in his class.,3. 比較級(jí)和最高級(jí)的轉(zhuǎn)換 e.g. Tom is the tallest student in the class. = Tom is taller than any other student in the class. =