英语(牛津广州版)八年级上册：Unit+3+Modern+machines+Language课件(共30张PPT)

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Unit 3 Modern machines

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The comparative and superlative of adjectives

英语中有时需要对两者或多者进行比较， 这时就需要用形容词的比较等级。比较等级分为： 原级: cheap 比较级: cheaper 最高级: cheapest

expensive more expensive the most expensive

bigger bigzxxkw

biggest

The dog is bigger than the mouse. The horse is the biggest of all.

young

younger

youngest

The boy is younger than the man. The baby is the youngest of the three.

Tom

Li Lei Jimzxxkw

Li Lei is taller than Tom.

Jim is the tallest of all.

￥10 ￥20 ￥30 The yellow coat is cheaper than the purple one. The brown coat is the cheapest of the three.

形容词比较级和最高级的构成：规则变化

单音节形容词的 构成方法 一般在词尾加-er 或-est 以字母e结尾的 单词后加-r 或-st

原级

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比较级

最高级

tall

taller

tallest

nice fine

nicer finer earlier heavier

nicest finest earliest heaviest

以“辅音字母+y” 结尾的双音节词，early 先改y为i, heavy 再加-er或-est

重读闭音节词尾 只有一个辅音字 母时，应先 双写 这个辅音字母， 再加 -er或 -est

thin big hotzxxkw

thinner bigger hotter

thinnest biggest hottest

more 多音节词 或少数 useful 双音节词 ，在词 useful 前加 more 或 most beautiful morebeautiful

most useful mostbeautiful

1. 形容词比较级和最高级的构成 ：

不规则变化 少数几个形容 词的比较级和 最高级的构成 是不规则的。good/wellzxxkw

例词 better Best

bad/ill many/much little far old

worse more less farther (further) older elder

worst most least farthest furthest oldest eldest

写出下列形容词的 比较级和最高级：zxxkw

cheap old nice happy early big

small high safe heavy easy wet

important difficult angry famous interesting excited good ill far little

Fill in the blanks with the proper forms of thewords given.zxxkw

older than Richard. (old) 1. My sister is _____ more homework to do than I do today. 2. He has _____ (much) more exciting than volleyball? (exciting) 3. Is football ____________ cleaner than it used to be. (clean) 4. The town is _______

5. I’m ________ cleverer than his brother, Jim. (clever)prettier than in the photo. (pretty) 6. I think she looks _______

more dangerous than the other one. 7. This road is ______________ (dangerous)more important than I thought. 8. This problem is ______________ (important)zxxkw

farther than a young man? (far) 9. Can you walk _______ hotter in Wuhan than in 10. In summer it is much ______ Beijing. (hot) brighter Room 201 or Room 108? 11. Which is ________, (bright) the oldest boy in our class. (old) 12.Tom is _________

13. This is _______ the best city that we have ever visited. (good) 14. It was the ______ worst day of his life. (bad)zxxkw

15. Susan’s flowers are ________________ the most beautiful of all.(beautiful) the cleverest of the girls in the

class. (clever) 16. Sue is ___________ She answered all the questions except the most difficult one. (difficult) _______________ colder than autumn; it is __________ the coldest 17. Winter is ______ of the four seasons. (cold)

boring play the day before 18. We watched a very ______ yesterday. (bore)

19. Pants cost _____ more than shorts. Shorts don’t costas much _____ as pants. (much) more lively today than yesterday. 20. The girl seems __________ lively yesterday as today. The girl didn’t seem so _____ (lively)

“比较”出来的英语zxxkw

1. A friend is easier lost than found. 朋友易失不易得。 2. Enough is as good as a feast. 知足常乐。 3. Better to do well than to say well. 说得好不如做得好。 4. Better the last smile than the first laughter. 宁可最后微笑，不可首先狂喜。

“比较”出来的英语zxxkw

5. Doing is better than saying. 会说不如会做。 6. Two heads are better than one. 两人智慧胜一人。 7. Good to begin well, better to end well. 善始好，善终更佳。 8. An eye finds more truth than two ears. 百闻不如一见。

A The comparative of adjectivesA2 Work in pairs to do this quiz. S1 asks the questions. S2 uses the information in the box to answer the questions.zxxkw