时间:2019-02-08 作者:英语课 分类:英文语法词汇


英语课

1) 两词都是'必须'的意思,have to 表示客观的需要, must 表示说话人主观上的看法,既主观上的必要。
  My brother was 1 very ill, so I had 2 to call the doctor in the middle of the night. 我弟弟病得很厉害,我只得半夜里把医生请来。(客观上需要做这件事)
  He said 3 that they must work hard. 他说他们必须努力工作。(主观上要做这件事)

2) have to有人称、数、时态的变化,而must只有一种形式。但must 可用于间接引语中表示过去的必要或义务。
He had to look after his sister yesterday.

3) 在否定结构中: don't have to  表示"不必"
          mustn't    表示"禁止",
   You don't have to tell him about it.  你不一定要把此事告诉他。
   You mustn't tell him about it.    你一定不要把这件事告诉他。





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1
was
bglwv
  
 


v.(is,am的过去式)是,在


参考例句:





He said he was right.他说他是正确的。
He was cold and hungry.他又冷又饿。












2
had
FeBxb
  
 


vbl.have的过去式和过去分词;conj.有


参考例句:





I just had a good idea!我有个好主意!
The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。












3
said
IYtxh
  
 


v.动词say的过去式、过去分词


参考例句:





He said to me that he could not come.他对我说他不能来。
He said to his mother that he would do it by himself.他对他的母亲说他将自己独立做那件事。













v.(is,am的过去式)是,在
  • He said he was right.他说他是正确的。
  • He was cold and hungry.他又冷又饿。
vbl.have的过去式和过去分词;conj.有
  • I just had a good idea!我有个好主意!
  • The boy had a small branch of a tree in his hand.这个男孩手上拿一条小树枝。
v.动词say的过去式、过去分词
  • He said to me that he could not come.他对我说他不能来。
  • He said to his mother that he would do it by himself.他对他的母亲说他将自己独立做那件事。
学英语单词
a ray of
alienatory
Ammoket
anthomaniac
arteria circumflexa scapulaes
auti-fouling coat
bacul-
basic training
be buried under
cereal food
channel for orders
commaund
corporate gang
crocein scarlet 3b
current-cost accounting
d-va
data aggregate type
deep sea mining vessel
Deutsch-Wagram
discipline of tribunal
donts
downhole water flow regulator
dried whole egg
dye beck
edgar rice burroughss
ERGO-Shell
ethnocinemabography
everything to
fev
final subcircuit
finger baffle
finite population correction factor
flexile
freon chiller unit
Furmanov
genus acacias
grease squirt
heavy gas
high concentration hydrochloric acid treatment
high-voltage testing transformer
homoamino acid
housing gasket
hybrid released translation
Khairabad
knocking on wood.
Lenetran
luzzu
main breadth line
make it clear
matt-finisheds
metacromia
microbooster
microcassette recorder
minimarathons
Mphoengs
musayev
my memory
Nexus One
Nihālpur
oeq
phoenix club
planned distributing
postglacial epoch
prelatize
Privas
rachigrap
reduced system of residues
rethinkable
rsjc
salsolinol
sea-captured streams
second helpings
semi-elastic subgrade
semisimple module
short moderate swell
sialons
smokehouses
solar thermal power plant
sowerbyella pallida
spinalized
Spirochaeta eberthi
stercoraceous vomiting
steroid glycoside
storage list
struggle into
subcutaneous test
subeditor
Tadjena
tegel
terminal buttons
tetragnatha praedonia
Tokary
tom collinss
tools for machine tools
total bacteria count
trace of precipitation
UIML
uninserted
unpavilioned
upgird
visual pass
warehousing charge