时间:2018-12-18 作者:英语课 分类:英文语法词汇


英语课

   如果动词原形末尾单个辅音字母前面的元音只有一个字母,而且重读,那么原形末尾的单个辅音字母,在加-ing和-ed时要双拼:


  bar~’barring~’barred
  beg~’begging~begged
  oc’cur~oc’curing~oc’curred
  per’mit~per’mitting~per’mitted
  pa’trol~pa’trolling~pa’trolled
  如果前面的元音:不重读(’enter~’entering~’entered.’visit~’visiting~’visited),或是由两个字母拼写而成dread~dreading~
  dreaded),则原形末尾的单个辅音字母通常不双拼。
  有些原形末尾的辅音字母,即使它前面的元音不重读,也要双拼。在下列情况下:双拼在英国英语中是正常的,而在英国英语中,原形末尾的辅音字母可双拼,也可不双拼,不过习惯上更倾向于不双拼:
  1、以非重读原因+-l结尾的动词:
  ‘travelling’travelled(英国英语和美国英语)
  ‘travel ‘traveling’traveled(中用于美国英语)
  类似的还有:’cancer,’counsel,’dial,’model,’signal等词。
  2、以非重读元音+-m(me)结尾的动词:
  ‘program(me)’programming’programmed(英国英语和美国英语);
  ‘program ‘programing ‘programed(只用于美国英语)
  3、一些以非重读元音+-P结尾的动词:
  ‘worshipping ‘worshipped(英语英语和美国英语)
  ‘worship ’worshiping ‘worshipped(只用于美国英语)
  动词handicap和kidnap也遵循worship的拼写规则。然而,不论在英国英语中还是在美国英语中,大部分以非重读元音+-P结尾的动词不要双拼:
  de’velop~de’veloping~de’veloped,’gallop~’galloping~’galloped,’gossip~’gossiping~’gossiped等。
  4、以非重读元音+-g结尾的动词:
  ’humbug’humbugging’humbugged
  但是,请注意(美国英语)’catalog~’cataloging~’cataloged.
  (e)在以元音+-c结尾的动词中,原形末尾的辅音字母的双拼拼成
  -ck:
  ’panic’panicking’panicked
  ’traffic’trafficking’trafficked
  类似的有:frolic,’bivouac等词。
  5、在某些以元音+-s结尾的动词原形中,在加动词后缀时,有-s-和-ss-两种形式:
  ’bias’biasing/’biassing ‘biased/’biassed
  bus’busing/’bussingbused/bussed
  ’focus’focuing/’focussing’focused/’focussed
  注意
  1、像PLAY(~playing~played)和ROW(~rowing~rowed)那样的动词,末尾辅音不双拼,这是因为在这些词中,-y和-w不算作辅音字母,而算作双元音拼法的一部分(-ay,-ow)。
  2、像E’QUIP(~e’quipping~e’quipped)和AC’QUIT(~ac’quitting~ac’quitted)那样的词,末尾辅音要双拼,因为u在这里算作辅音拼法-qu-的一部分,而不算作一个元音。
  3、字母-x从不双拼,因为它代表/ks/这两个辅音:fix~fixing~fixed等。
  4、原形末尾不发音的辅音字母不双拼:crochet/-ei/~crocheting~crocteted;hurrah/-n:/~hurrahing~hurrahed.
  5、在加以元音开始的派生后缀时,一般也遵循上述双拼规则。
  6、不存在’catalogged~’catalogging的拼法,因为和美国英语CATALOG相应的英国英语拼法是catalogue~cataloguing~catalogued。
  7、罕见的例外情形是arc~arc(k)ing~arc(k)ed,因为也可以不加k。
  8、动词BENEFIT有时(尤其在美国英语中)既有规则的拼法形benefiting~benefited,又有不规则的辅音字母双拼形式(benefitting~benefitted)。

标签: 英语语法
学英语单词
2-alkyl-n-carboxymethl-n-hydroxyethyl imidazolinium betaine
6Li glass detector
a shark
accommodation items
acquisition of a claim
alkynamine
alphameric, alphamerical
antibiotic resistant gene screening
baby-words
bathophilous
Bidston
Broca's fissure
burst detector
cannal
chain wire
choroiditis serosa
Cladostachys
closed car
constant-K type compensating network
conuter-current contact
counter-camp
CPUID HWMonitor
cryptogamic
dansylates
Dasht-i-Lut
defatted and bleaching facility
depsidones
echoencephalography
encander
ensampling
erythema radiation
ETD (estimated time of departure)
euproctis sparsa
expenditure on capital account
flocculation concentration
flux-monitoring foil
FQI
geoastrophysical
geothermo-electric plant
ggtp
glass condenser
gnomically
gold-doped germanium
Goldstein's hematemesis
grece
hardripe stage
histophagous
host assembler
insurrectionism
internal-control procedure
irregardlessly
keratodermatosis
Khinganskiy Zapovednik
kogler
large offspring syndrome
Longnan
monoprints
mouse skin
multiple hydraulic pump
Münchenbernsdorf
national-savings
new path
nitroalkane
non-repairable
nullum crimen sine lege
orchiectomised
Outokumpu flash smelting
physical topologies
plana
pre-wetting
price bureau
pulse position indicator (ppi)
Quakerisms
quick look (ql)
random sampling with replacement
register stage
ring chart
send hand in one's resignation
slivered
sludge occurrence
smarck
smoothings
specialized data processing
speckled rattlesnakes
spectral function
sporadic simple groups
sporophorocystic
Srednyaya Larba
standbye face
steppe salt
strata pigmenti retinae
sweet rockets
tecnonymous
thumb disk
trigonal planar structure
tympanuchus cupidoes
unknown file table
unmitigated
unranged
usefulnesses
wingett
women's shop