八年級英語上冊 Unit 3 Computers Grammar課件 (新版)牛津深圳版.ppt

Period 3,Grammar,Module 2 Science and technology,Oxford English,Unit 3,Computers,Will computers make our lives better?,Revision and introduction,1,Complete the article.,The first computers were _ than cars, but now they are becoming _ and _. Computers can calculate at a _ speed than we can. Computers are not _ than human beings, but they may be able to do a _ job than us. In the past, computers were _ expensive, but now they are much _.,cheaper,cleverer,faster,smaller,bigger,more,Grammar A The comparative of adjectives,2,When we compare two people or things, we can use the comparative of adjectives.,better,better,How do we form the comparative of adjectives?,-er,more,than,The first computers were _ than cars, but now they are becoming _ and _. Computers can calculate at a _ speed than we can. Computers are not _ than human beings, but they may be able to do a _ job than us. In the past, computers were _ expensive, but now they are much _.,cheaper,cleverer,faster,smaller,bigger,more,better,better,The small dog runs fast.,The horse runs _ than the small dog.,fast,faster,fastest,The leopard runs _.,faster,the fastest,The cow is _ than the sheep.,The elephant is _ of all.,heavy,heavier,heaviest,The sheep is heavy.,heavier,the heaviest,Jim is strong. Li Lei is . Tom is .,stronger,the strongest,Exercise,The blue car is nice. The red car is the blue car.(紅車比藍(lán)車好看） The colourful car is of all. （彩色車最好看）,nicer than,the nicest,How do you like these Christmas trees?,1 2 3,The first Christmas tree is beautiful.,The second one is _than the first one.,The third one is _of the three.,more beautiful,the most beautiful,￥ 500.00,￥ 1000.00,￥ 1500.00,The green bag is expensive. The white one is _ _ than the green one. The purple bag is _one of all the bags.,more expensive,the most expensive,形容詞和副詞比較級和最高級的規(guī)則變化：,規(guī)則變化,一般在詞尾加-er 或-est,shorter,the shortest,以字母e結(jié)尾的單詞后加-r 或-st,finer,the finest,heavier,the heaviest,以“輔音字母+y” 變y為i,再加-er或-est,short,fine,heavy,bigger,big thin hot,the thinnest,thinner,the biggest,hotter,the hottest,以輔+元+輔結(jié)尾的，雙寫尾字母，再加-er/ -est,長的形容詞 多音節(jié)或少數(shù)雙音節(jié)形容詞，在詞前more/ most,expensive beautiful useful,the most expensive the most beautiful the most useful,more expensive more beautiful more useful,1. large _ _ 2. nice _ _ 3. dry _ _ 4. thin _ _ 5.clever_ _ 6. happy_ _ 7. heavy_ _ 8.fat _ _ 9.politely_ _10. early _ _ 11. beautiful _ _ 12. quickly _ _ 13. interesting_ _ 14. excited _ _,larger the largest,nicer the nicest,drier the driest,thinner the thinnest,cleverer the cleverest,happier the happiest,heavier the heaviest,fatter the fattest,more the most ,more beautiful,the most beautiful,Lets do it!,寫出比較級和最高級,more quickly the most quickly,more interesting the most interesting,more excited the most excited,earlier the earilest,這個箱子比那個箱子重。 This box is _ that one.,2. 你的電腦比我的大。 Your computer is _mine.,heavier than,bigger than,3. 長江比黃河長。 The Yangtze River is _ _ the Yellow River.,longer than,4. 這個故事沒有那個有趣。 This story is _ _ _ that one.,less interesting than,Fill the blanks.,A + 謂語 + 比較級 + than +B,Conclusion：比較級的句子結(jié)構(gòu)：,Oral Translation,1你認(rèn)為英語比數(shù)學(xué)簡單嗎? Do you think English is easier than math? 2 這個相機比那個相機貴。 This camera is more expensive than that one. 3 瑪麗比吉姆學(xué)習(xí)努力。 Mary studies harder than Jim. 4 我比我姐姐跳得遠(yuǎn)。 I jumped farther than my sister,A + 謂語 + 比較級 + than +B,Lets play a game: 開火車,You must compare yourself with someone in our class. (e.g age, height, weight, hair length) or other things (e.g book, watch, pen, school bag ) 如果你們組有任何人掉鏈，都會被扣掉一個A。整組都接上，將會得到4A. eg: Im fatter than ,more expensive,lighter,Complete the conversation below and on page 40 with the comparative of the adjectives from the box.,heavier,smaller,bigger,S1: _, Canada or China? (country/big) S2: _.,Ask and answer questions using the following information. The first one has been done for you.,(country/big),Canada China,(city/big),(river/long),(island/large),(mountain/high),S1: _,Cananda or China? (country/big) S2: _.,Ask and answer questions using the following information. The first one has been done for you.,The red laptop is the smallest among/of the three.,When we compare more than two people or things, we use the superlative of adjectives.,Grammar B The superlative of adjectives,3,The red laptop is the smallest among/of the three, but it is _.,the most expensive,How do we form the superlative of adjectives?,-est,most,the,The dog is _ _the mouse.,The horse is _ _ _ all.,The boy is _ _the man.,The baby is _ _ the three.,big,bigger,biggest,young younger,youngest,bigger than,the biggest of,younger than,the youngest of,Jim,Li Lei,Tom,Li Lei is _ _Tom.,Jim is _ _ _our class.,￥30,￥20,￥10,The yellow coat is _ _the purple one.,The brown coat is _ _ _ the three.,taller than,the tallest in,cheaper than,the cheapest of,Conclusion,The horse is the biggest of all. The baby is the youngest of the three. The brown coat is the cheapest of the three. Jim is the tallest in our class.,主語 + be + the + 最高級 + of / in,形容詞最高級句式的結(jié)構(gòu)：,注意：形容詞最高級前一定要用the. 最高級后面可用in, of等短語來說明比較圍。,the superlative of adjectives,The dog is _ _the mouse.,The horse is _ _ _ all.,The boy is _ _the man.,The baby is _ _ the three.,big,bigger,biggest,young younger,youngest,bigger than,the biggest of,younger than,the youngest of,Jim,Li Lei,Tom,Li Lei is _ _Tom.,Jim is _ _ _our class.,￥30,￥20,￥10,The yellow coat is _ _the purple one.,The brown coat is _ _ _ the three.,taller than,the tallest in,cheaper than,the cheapest of,David: Id like to see some of your cameras. Salesman: Certainly. This is the most expensive model. This is the cheapest model. This is the newest and lightest model.,a,b,c,B1 David is shopping for a camera. Look at the photos and write the letter of the correct model after each statement.,(1)_ (2)_ (3)_,Tony: Did they show you any cameras? David: Yes. The (1)_model is (2)_. The (3)_model costs (4)_. The (5)_model was made in (6)_. The (7)_model weighs (8)_.,expensive light old small,smallest,99.8 mm x 56.4 mm x 24.5 mm,most expensive,oldest,lightest,3,589,2010,170 g,B2 David told his friend Tony about his shopping trip. Complete Davids sentences with the superlative of the adjectives from the box.,S1: Which is the biggest, the Earth, the Moon or the Sun? S2: The Sun is the biggest.,the Earth, the Moon or the Sun? (big),a bee, a butterfly or an ant? (small) iron, silver or gold? (valuable) a bear, a whale or an elephant? (heavy) a spaceship, a plane or a train? (fast),Ask and answer questions using the following information. The first one has been done for you.,More practise My sister is _ than Richard. (old) Is football _ than volleyball? (exciting) I think she looks _ than in the photo. (pretty) Can you walk _ than a young man? (far) In summer it is much _ in Wuhan than in Beijing. (hot) Tom is _ boy in our class. (old),older,more exciting,prettier,farther,hotter,the oldest,7. It was the _ day of his life. (bad) 8. Which is _, Room 201 or Room 108? (bright) 9. We watched a v