酷兔英语

八年级英语上Unit2教学设计

[教学过程]
重点词汇
anyone bamboo bow colourful disappointed discuss
everyone fable frame hold howl impatient
lean sweat paragraph proud shock show off
slide speed strength wrinkle trick

形容词与副词的比较级
  大多数形容词(性质形容词)和副词有比较级和最高级的变化,即原级、比较级和最高级,用来表示事物的等级差别。原级即形容词的原形,比较级和最高级有规则变化和不规则变化两种。
1) 规则变化
单音节词和少数双音节词,在词尾加-er,-est来构成比较级和最高级。
构成法      原级      比较级   最高级
一般单音节词   tall(高的)   taller    tallest
末尾加-er,-est   great(巨大的)  greater  greatest

以不发音的e结尾 nice(好的)   nicer  nicest
的单音节  large(大的)  larger  largest

以- le结尾的双 able(有能力的) abler  ablest
音节词只加-r,-st                   

以一个辅音字母 big(大的)    bigger  biggest
结尾的闭音节单 hot(热的)    hotter  hottest
音节词,双写结
尾的辅音字母,
再加-er,-est

“以辅音字母+y” easy(容易的)  easier  easiest
结尾的双音节词,busy(忙的)   busier  busiest
改y为i,再加-er,-est

少数以-er,-ow clever(聪明的) cleverer cleverest
结尾的双音节词 narrow(窄的)  narrower narrowest
末尾加-er,-est                    

其他双音节词和 important(重要的) more important
多音节词,在前      most important
面加more,most           
来构成比较级和 easily(容易地)
最高级    more easily  most easily   

2)不规则变化
    原级      比较级   最高级          
  good(好的)/    better    best
  well(健康的)
  bad (坏的)/    worse    worst
  ill(有病的)
  old (老的)    older/elder   oldest/eldest     
  much/many(多的) more     most        
  little(少的)    less      least        
  far (远的)    farther/further  farthest/furthest 

as + 形容词或副词原级 + as 
1)在否定句或疑问句中可用so… as。
  He cannot run so/as fast as you.
2)当as… as 中间有名词时采用以下格式。
   as +形容词+ a/an +单数名词+as
   as + many/much +名词+as
   This is as good an example as the other is.
   I can carry as much paper as you can.
3)用表示倍数的词或其他程度副词做修饰语时,放在as的前面。
  This room is twice as big as that one.
  Your room is the same size as mine.  
4)倍数+ as + adj. + as <=> 倍数+ the + of
  This bridge is three times as long as that one.
  This bridge is three times the length of that one.
  Your room is twice as large as mine.
  Your room is twice the size of mine.

比较级形容词或副词 + than
You are taller than I.
  The lights in your room are as bright as those in mine.

注意:
1)要避免重复使用比较级。
   (错) He is more cleverer than his brother.
   (对) He is more clever than his brother.
   (对) He is cleverer than his brother.

2)要避免将主语含在比较对象中。
   (错) China is larger that any country in Asia.
   (对) China is larger than any other countries in Asia.

3)要注意对应句型,遵循前后一致的原则。
   The population of Shanghai is larger than that of Beijing.
   It is easier to make a plan than to carry it out.

4)要注意冠词的使用,后有名词的时候,前面才有可能有冠词。
   比较:Which is larger, Canada or Australia?
     Which is the larger country, Canada or Australia?
     She is taller than her two sisters.
     She is the taller of the two sisters.

可修饰比较级的词
1)a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等。
2)还可以用表示倍数的词或度量名词作修饰语。
3)以上词(除by far)外,必须置于比较级形容词或副词的前面。

例题:
1) ---- Are you feeling ____?
   ---- Yes,I'm fine now.
A. any well B. any better C. quite good D. quite better  
答案:B any 可修饰比较级,quite修饰原级,well的比较级为better。
2)The experiment was____ easier than we had expected. 
A. more B. much more C. much D. more much
答案:C much可修饰比较级,因此B,C都说得通,但easier本身已是比较级,不需more,因此C为正确答案。
3)If there were no examinations, we should have ___ at school.
A. the happiest time B. a more happier time
C. much happiest time D. a much happier time
答案:D

物主代词:
物主代词可分为形容词性物主代词和
生词表:
  • paragraph [´pærəgrɑ:f] 移动到这儿单词发声  n.段;节 vt.将…分段   (初中英语单词)
  • wrinkle [´riŋkəl] 移动到这儿单词发声  n.&v.(使)起皱(纹)   (初中英语单词)
  • bamboo [,bæm´bu:] 移动到这儿单词发声  n.竹   (高中英语单词)
  • colourful [´kʌləful] 移动到这儿单词发声  a.艳丽的;吸引人的   (英语四级单词)
  • bridge [bridʒ] 移动到这儿单词发声  n.桥(梁);鼻梁;桥牌   (英语四级单词)