2021年下半年全国英语四级,2021年下半年英语四级语法知识精选

副标题:2021年下半年英语四级语法知识精选

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1.2021年下半年英语四级语法知识精选

  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。

  典型例题:

  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。

2.2021年下半年英语四级语法知识精选

  大多数形容词(性质形容词)和副词有比较级和级的变化,即原级、比较级和级,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,加词尾-er,-est来构成比较级和级。

  构成法     原级     比较级   级

  一般单音节词  tall(高的)   taller  tallest

  未尾加-er,-est great(巨大的) greater  greatest

  以不发音的e结尾 nice(好的)   nicer  nicest

  的单音词和少数  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

  未尾加-er,-est

  其他双音节词和 important(重要的)

  多音节词,在前      more important

  面加more,most            most important

  来构成比较级和 easily(容易地)

  级。         more easily

  most easily

  2) 不规则变化

  原级      比较级   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

3.2021年下半年英语四级语法知识精选

  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 +单数名词

  as + many/much +名词

  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+ then + 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.

2021年下半年英语四级语法知识精选.doc

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