时间:2019-02-05 作者:英语课 分类:英文语法词汇


英语课

 1) must用在肯定句中表示较有把握的推测,意为"一定"。
 2) must表对现在的状态或现在正发生的事情的推测时, must 后面通常接系动词be 的原形或行为动词的进行式。
   You have worked hard all day.You must be tired.  你辛苦干一整天,一定累了。(对现在情况的推测判断)
   He must be working in his office. 他一定在办公室工作呢。


 比较:
    He must be staying there. 
    他现在肯定呆在那里。
    He must stay there.
    他必须呆在那。
 3) must 表示对已发生的事情的推测时,must 要接完成式。
   I didn't hear the phone. I must have been asleep 1. 我刚才没有听到电话,我想必是睡着了。


 4) must表示对过去某时正发生的事情的推测,must 后面要接不定式的完成进行式。
  ---Why didn't you answer my phone call?
  ---Well, I must have been sleeping, so I didn't hear it.


 5) 否定推测用can't。
   If Tom didn't leave here until 2 five o'clock, he can't be home yet 3. 如果汤姆五点才离开这儿,他此时一定还未到家。

adj.睡熟了的,麻木的;adv.熟睡地
  • The baby seems to be asleep.那婴孩好像是睡着了。
  • My right foot is asleep.我的右脚麻木了。
prep.直到...为止;conj.直到...时才...
  • He arrived home until midnight.他直到半夜才到家。
  • She didn't sleep until midnight.她直到半夜才睡。
adv.还,仍然,即刻;conj.尽管,然而
  • I am not ready yet.我还没有准备好。
  • Beautiful as she is,she didn't find a boyfriend yet.尽管她很漂亮,但还没找到男朋友呢。
学英语单词
ability to repay
Abū Kabir
accidental resemblance
Adenacanthus longispicus
anglesite
anteosaurids
anvil cutter
biotite hypersthene trachyte
blnk
bowelless
brammall
carbon dioxide gas laser
cash on the barrel head
catheter a demeure
chiasms
collecting societies
consummate art
control post
creatase
crow step
cryptocrystalline
decreaser
desperance
device-template library
dig one's feet in
direct-care
dirt boat
double-beam optical null
Echinochloa cruspavonis
electrical apparatus element
electrical arc
electromechanical pick up
Ethel Reefs
evacuateth
expansive classification
fibre optic element
forestage
forestiera neomexicanas
fueling distribution
Gelle test
geodetic photogrammetry
grees
have something taped
hydroacoustic contact
ignore rule
indignancies
industrial tyre
integral inner ring
interchange agreement
large bolt rope needle
make same height
marker radio beacon
mechanized packing lot
melchester
multicolor emission
neodigoxin
nephotettix apicalis (st?l)
net filter
owatonna
Pacific Mail
paramilitarism
Pass Christian
Pathum Thani
pepsinogenous
Phenyldimazone
polybag plant
polyvinylacetal
porphyrea
precision emitter location strike system
preliminary assay
quatenus
quesos frescos
quiners
rabbit-ear test
radioxenon
rail joint bond
refunding bond
riding hood
roll bender
Saxifragales
Scutellaria forrestii
sitting ducks
space of discission
special checkout equipment for satellite
speicher
step-by-step transmitter
sulphur dioxide
tear your away
telescopic oiler
the frozen limit
tonomorpheme
tough break
tripudium
unilateral stimulus
unsafety
us-iraqi
vagina bulbi
value-shiftings
veruel
virtual point
whoop-dee-doo
yolks