英語課件人教版(新目標)新目標八年級下unit7 section a period 3課件(共49張ppt)

1、Period 3 4a-4cGrammar focus,Unit 7 What’s the highest mountain in the world?,,Objectives,To learn to use comparatives and superlatives with adjectives and adverbsTo learn new words: the Pacific Ocean…,,oceanthe Paci

2、fic Ocean,n. 大海；海洋n. 太平洋,Words review,Review,Can you translate the following sentences?,長江大約長6,300千米。,The Yangtze River is about 6,300 kilometers long.,Review,Can you translate the following sentences?,黃河長5,464千米。,The Y

3、ellow River is 5,464 kilometers long.,Review,Can you translate the following sentences?,明朝的長城大約有8,850千米長。,The Great Wall in Ming dynasty is about 8,850 kilometers long.,Review,Can you translate the following sentences?,

4、珠穆朗瑪峰高8,844.43米，所以攀登起來很危險。,Qomolangma is 8,844.43 meters high and so is very dangerous to climb.,The Yangtze River is about 6300 kilometers long.,The Yellow River is 5464 kilometers long.,The Great Wall in Ming dynasty

5、is about 8,850 kilometers long.,Qomolangma is 8,844.43 meters high and so is very dangerous to climb.,What can you get from the above four sentences?,Now let’s try to translate the sentences below:,那個籃球運動員有兩米高。那條河只有兩米深

6、/寬。這棵樹有兩米高。那條河長兩千米。,The basketball player is two meters tall.,The river is only two meters deep/wide.,The tree is two meters tall.,The river is about two kilometers long.,5. 這座山大約有兩千米高。6. 這個箱子大約有兩米高/寬/長。,The mount

7、ain is about two thousand meters high.,The box is about two meters high / wide /long.,Grammar Focus,Grammar focus,— What’s the highest mountain in the world?— Qomolangma.— How high is Qomolangma?— It’s 8,844.43 meters

8、 high. It’s higher than any other mountain.,— Which is the deepest salt lake in the world?— The Caspian Sea is the deepest of all the salt lakes.— Did you know that China is one of the oldest countries in the world?—

9、Yes, I did. It’s much older than the US.,大多數(shù)形容詞有三個級。 1. 原級:Structure : as ... as... 像..….一樣 e.g. Tim is as tall as Tom. 2. 比較級 (用于兩者之間的比較):Structure：形容詞比較級＋ than ... e.g. This box is bigger than that one.,形容詞和副詞的比較

10、級和最高級,3. 最高級(用于三者或三者以上的比較):Structure: the + 形容詞的最高級＋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＋er， 最高級＋est。如:clever — cleverer

11、— cleverest few — fewer — fewest small — smaller — smallest 等。,形容詞、副詞的比較級和最高級規(guī)則變化和不規(guī)則變化,2) 以e結(jié)尾的詞，比較級＋r，最高級＋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i＋er或e

12、st 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，雙寫這個輔音字母＋er 或 est的詞：① fat — fatter — fattest ② thin — thinner — thinnest ③ hot — hotter — h

13、ottest ④ red — redder — reddest ⑤ wet — wetter — wettest ⑥ 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前＋more 構(gòu)成比較級，＋the most 構(gòu)成最高級。如： beautiful － more beautiful － the most beautiful 又如: delicious, popular, i

14、mportant, interesting, expensive, creative雙音節(jié)的詞如: careful － more careful － the most 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 m

15、ost 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) far — further — furthest (程度深) old — elder — eldest

16、 (長幼) old — older — oldest (年齡),三者或三者以上相比，表示最高程度時，用“the + 最高級”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.,最高級的用法,2. 最高級可被序數(shù)詞以及 muc

17、h，by far，nearly，almost，by no means，not quite，not really，nothing like 等詞語所修飾。例如：This hat is by far／much／nearly／almost／not nearly／by no means／not quite／nothing like the biggest. How much did the second most expensive hat

18、coat?,3. 表示“最高程度”的形容詞，如 excellent，extreme，perfect等，沒有最高級，也不能用比較級。4. 形容詞最高級修飾作表語或介詞賓語的名詞、代詞時，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前可以不加定冠詞。e.g. Of all the boys he came (the) earliest.,比較級考點

19、① 比較級修飾問題a little, a bit, even, still, much, a lot, far 等可修飾比較級。e.g. Tom is a little taller than Jim. This book is much more interesting than that one.,中考鏈接,② 同級比較e.g. The weather in Beijing is colder than that in

20、 Xi’an. Our school is bigger than yours.③ the + 比較級e.g. Lucy is the fatter of the two girls.,④ “a/an + 比較級” 表示“又一，再一”e.g. Lily has a doll, but she wants a bigger one.⑤ 隱性比較（沒有than的情況）e.g. Who runs f

21、aster, Lucy or Lily? You’d better come earlier next time. He worked hard last term, but he works even harder this term.,⑥ 越來越...... 比較級 + and + 比較級b. the + 比較級 + 句子，the + 比較級 + 句子e.g. It’s getting colde

22、r and colder. The more you exercise, the better you are.,2. 最高級考點說明：形容詞的最高級前必須加the；副詞的最高級前省略the。① 范圍問題e.g. Tom is the tallest student in the class. Spring is the best season of the year.,② “......之一”問題e

23、.g. Beijing is one of the biggest cities in the world.③ “the + 序數(shù)詞 + 最高級”e.g. I think he is the second tallest boy in his class.,3. 比較級和最高級的轉(zhuǎn)換e.g. Tom is the tallest student in the class.= Tom is taller than any othe

24、r student in the class.= Tom is taller than all the other students in the class.= No other students are taller than Tom.,總結(jié)：① any other + 名詞單數(shù)       the other + 名詞復(fù)數(shù) ② 否定

25、+ 比較級 = 最高級       比較級 + 極限 = 最高級,同級比較① as + adj./adv. + as e.g. She is as thin as Lily. He writes as carefully as Linda.② not + as/so + adj./adv. + as e.g. Tony didn’t run

26、so fast as Carter.,1. Our family has bought a car so we can travel _____ than before.    most easily    B. less easily   C. easily    D. more easily &

27、#160;2. My father told me a story last night. It is ____ one I’ve ever heard.   the funniest    B. funniest   C. funnier    D. the funnier,學(xué)以致用,D,A,3. The ____

28、_ friends you have, the ____ you will be.           A. more, happy    B. many, happy   C. more, happier   D. many, happier 4. When he h

29、eard a cry for help, he ran out as _______ as he could. hardly       B. quickly      C. finally       D. slowly,C,B,5. This place

30、 is not big enough for Lucy’s birthday party. We should find a _____ one.   big               B. small         C. bigger 

31、60;          D. smaller,C,Fill in the blanks with the correct forms of the words in the box.,big much popular long old high,1. The Amazon River is one of the _______ rive

32、rs in the world. It’s a little _______ than the Yangtze River.2. Qomolangma is 8,844.43 meters _____. It’s one of the most ________ places for serious mountain climbers.,longest,longer,high,popular,3. No ocean in the

33、 world is as _____ as the Pacific Ocean.4. Although Japan is _______ than Canada, it is _______ smaller.,big,older,much,太平洋,n. 大海；海洋,Write two comparisons about two topics. Write true facts.,Two rivers: ____________

34、_____ and ___________________________________________________________________________________________________________________________________________________________________________________________,The Yangtze River is

35、almost as long as the Amazon River.The Amazon is longer than the Yangtze, but the Yangtze River is the longest river in China.,the Yangtze River,the Amazon River,Two cities: ___________ and ___________1. ______________

36、_________________. 2. _______________________________ .,Two animals: ___________ and ___________1. _______________________________. 2. _______________________________ .,Write five questions using comparisons. Then ask

37、 your partner your questions.,Writing,1. _________________________________2. _________________________________3. _________________________________4. _________________________________5. _______________________________

38、__,What is the highest building in our city?,Exercises,1. She is ________ than ________. A. busier / us B. busier / we C. more busy / us D. more busy / we 2. Jane is ________ than Betty. A. less

39、 taller B. less tallest C. less tall D. not as tall 3. China is ________ country in the world. A. the third largest B. the largest third C. the third large D. a third largest,B,

40、A,A,4. — Which is ____ season in Beijing? — I think it’s autumn. A. good B. better C. best D. the best 5. — Which is ____, the sun, the moon or the earth? — The moon is. small

41、 B. smaller C. smallest D. the smallest,D,D,6. I study English as ____ as my brother. A. hard B. harder C. hardest 7. Which is ____, a bicycle or a computer? A. expensive

42、 B. more expensive C. the most expensive 8. The Yellow River is one of ______ rivers in China. A. long B. longer C. the longest,A,B,C,,3. Lin Tao is __________________________ in the class beca

43、use he never gets to school on time. （最懶的學(xué)生之一）4. Edison was_________________________ in the world. 　(最偉大的發(fā)明家之一）,one of the laziest students,one of the greatest inventors,,The Yangtze River is________________

44、__ river in the world. (第三長河）,the third longest,2. The Atlantic is __________________ ocean in the world. ( 第二大洋）,the second biggest,翻譯句子：,同義句轉(zhuǎn)換,1. Flat A is more expensive than Flat B

45、 Flat B is _____ __________ than Flat A. Flat B is ________ _______ Flat A. Flat B is not ____ __________ ___ Flat A.,,2. I prefer maths to English. I like maths ________________

46、__ English.,better than,3.He is the tallest student in the class. He is ______________________________ in the class.,taller than any other student,,,,any other +　名詞單數(shù),,,,less,expensive,cheaper,than,as,expensiv

47、e,as,,1.Hainan is a very large Island .It is the second _________ island in china. (large)2.Our teacher is as ______ as before. (busy).3.He is ______________ among us. (careful)4.Li Lei jumped far ______ than Jim.

48、 (far)5.The busier he is, the ________ he feels. (happy)6.I think Yao Ming is one of ____________ basketball players in NBA. (hot),busy,the most careful,farther,happier,largest,the hottest,完成句子,Practice with your c