人教版八年级英语下册Unit7 SectionB（3a-Self Check）课件（共31张PPT）

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1、Whats the highest mountain in the world ？higher highestmore dangerous most dangerouslonger longestmore popular most popularbodyBeijingmy wishcrowdedstronger形容词和副词的比较级和最高级1. 大多数形容词有三个级。 1) 原级 : 常用结构 as . as. 像 . 一样 Zhang Hong is as tall as Tom. 张红和汤姆一样高。 2) 比较级 (用于 两者之间的比较 )常用结构： 形容词比较级 than . He is

2、taller than I. 他比我高。 Grammar 3) 最高级 (用于 三者或三者以上的比较 )，常用结构 : the + 形容词的最高级 of / in . He is the tallest of the three. 他是这三个人中最高的。 He is the funniest in his class. 他是他们班最有趣的。 2. 形容词、副词比较级和最高 规则变化 和 不规则变化 。 a)规则变化 1) 一般情况下， 单音节或双音节的形容词（或 副词 ） 比较级 er ， 最高级 est 如： clever cleverer cleverest few fewer fewes

3、t small smaller smallest等。 2) 以 e结尾的词 ， 比较级 r， 最高级 st 即可。 如：nice nicer nicest cute cuter cutest large larger largest 3) 以 辅音字母 y结尾的 变 y为 i er或 est 如 : easy easier easiest happy happier happiest 再如： early , busy , heavy , dirty , lazy也如此。 4) 双写最后一个辅音字母 er 或 est的词 ,同学要用心去记。 1. fat fatter fattest 2. th

4、in thinner thinnest 3. hot hotter hottest 4. red redder reddest 5. wet wetter wettest 6. big bigger biggest 5) 多音节和部分双音节的词 需要在形容词原级前 more构成 比较级 ， the most构成 最高级 。如： beautiful more beautiful the most beautiful 又如 : delicious, popular, important, interesting, expensive, creative双音节 的词如 : careful more

5、careful the most careful useful more useful the most useful少数单音节词 也是这样，如： pleased more pleased the most pleased tired more tired the most tired b) 不规则变化： good better best well better best bad worse worst many, much more most far farther farthest (距离远 ) far further furthest (程度深 ) old elder eldest (长

6、幼 ) old older oldest (年龄 ) One of the m_ endangered a_ in the world is the giant panda. There are only about 1,600 left.(剩下）ost nimals1.玻璃杯里还剩下一点水。2.我们还剩下一点时间。There is a little water left in the glass.We have a little time left.Exercise:1.The biggest _ in the world is the Sahara.2.The river is too _

7、 to swim in.3.China is one of the oldest _(文明 ) in the world.desertdirtybamboo4.The _ of the fastest animal is 120 kilometers per hour.5. What _ do you need for your coat? I want a large one.speedsize 单项选择 。( ) 1. My brother is _ more outgoing than me. A. many B. little C. much( ) 2. October 12th wa

8、s one of _ days in 2005. Shenzhou-VI was launched(发射） successfully. A. exciting B. more exciting C. the most excitingCC( ) 3. Which city is _, Beijing, Shanghai or Fuzhou? A. beautiful B. more beautiful C. the most beautiful( ) 4. _ children there are in a family, _ their life will be. A. The less,

9、the better B. Fewer, richerC. The fewer, the betterCC( ) 5. Mobile phones are very popular now and they are _ than before. A. cheap B. cheaper C. the cheapest( ) 6. In our city, its _ in July, but its even _ in August. A. hotter, hottest B. hot, hot C. hot, hotterBC( ) 7. Jacks handwriting is as _ a

10、s Mikes. A. good B. better C. best( ) 8. We can do the work better with _ money and _ people.A. little, few B. less, fewer C. fewer, less( ) 9. Jim is the tallest student in our class and Tom is the second _ one.A. tall B. taller C. tallestABCComplete the sentences with the right forms of the words.

11、1. Jim is very _. Li Lei is _ than Jim. (hungry)2. Kates mooncakes are _ of all. (nice)3. Your box is _ than mine. But his is _ of the three (heavy).4. Unit 2 is quite _. Unit 3 is _ than Unit 2. Its _ in Module 1.(hard)5. This TV play is _ than that one. (good)hungry hungriernicerheavier heaviestha

12、rd harderthe hardestbetter6. My mother is very _. She is _ in my family. (busy)7. Lingling gets to school _ than the others. (early)8. She speaks English _ in our class. (well)9. Lucy jumped quite _. (far)10. I think English is as _ as Chinese. (important)11. This picture is _ of the four. (beautifu

13、l)12. Lucy did _ than Lily. (bad)busy busierearlierbestfarimportantthe most beautifulworsethe Nile the Yangtze River the Yellow River6,670 6,300 5,500The Yellow River is long .The Yangtze River is a lot_ than the Yellow River.The Nile is _ _ of allThe Yangtze River is not_ long _ the Nile.=The Yangt

14、ze River is not _ than the Nile.longerthe longestas aslonger Mount Tai is high. Mount Huang is a little_than Mount Tai. Qomolangma is _ _ of all.Qomolangma Mount Huang Mount Tai8,848 1,864 1,545Mount Tai is not_ high _ Qomolangma. =Mount Tai is not _ than Qomolangma.higherthe highestas ashigher The

15、population of Singapore is large. The population of Malaysia is much_ than that of Singapore. The population of China is _ _ of all.Singapore Malaysia China4,000,000 20,000,000 1300,000,000The population of Singapore is not_ large_ that of China.The population of Singapore is not_ than that of China

16、.largerthe largestas aslargerChoose the best answer.1. My brother is _ more outgoing than me. A. many B. little C. much2. October 12th was one of _ days in 2005. Shenzhou-VI was launched（发射） successfully. A. exciting B. more exciting C. the most exciting3. Which city is _, Beijing, Shanghai or Fuzho

17、u? A. beautiful B. the most beautiful C. more beautiful CCB4. _ children there are in a family, _ their life will be. A. The less, the better B. Fewer, richerC. The fewer, the better5. Mobile phones are very popular now and they are _ than before. A. cheap B. cheaper C. the cheapest6. In our city, i

18、ts _ in July, but its even _ in August. A. hotter, hottest B. hot, hot C. hot, hotterABC7. Jacks handwriting is as _ as Mikes. A. good B. better C. best8. We can do the work better with _ money and _ people.A. little, few B. less, fewer C. fewer, less9. Jim is the tallest student in our class andTom

19、 is the second _ one.A. tall B. taller C. tallestABC10. Jim is the tallest student in our class and Tom is the second _ one.A. tall B. taller C. tallestCFinish the sentences with the right forms of the adjs.1. Kate is young, but Joe is _.2. My shoes are new. My sisters are _ than mine.3. Her bag is

20、heavy, and his is _ than hers. But yours is _ of all.youngernewerheavierthe heaviest4. Toms kite is high. Jims is _ than Toms. Mikes is _ of them all.5. Bill is seven. John is nine and Tom is eleven. Tom is _ than John and Bill. Bill is _ than John. Bill is _ and Tom is _ of the three.the highestolderyounger the youngestthe oldesthigher