时间:2019-01-11 作者:英语课 分类:英文语法词汇


英语课
Unit 1 1 时态、语态(四)


10. Until 2 then, his family _____ from him for six months.
A. didn't hear
B. hasn't been hearing
C. hasn't heard
D. hadn't heard


11. Before the first non-stop flight 4 made 5 in 1949, it _______ necessary 6 for all planes to land 7 for refueling.
A. would 8 be
B. has been
C. had 3 been
D. would have been


12. We _____ our breakfast when an old man came 9 to the door.
A. just have had
B. have just had
C. just had
D. had just had



答案:
10. D
译文:到那时为止,他家里有六个月没有得到他的消息了。
本句是过去完成时的用法。到过去某个时候(until then)之前,所发生的动作(hear from...),过去完成时常与表示一段时间的状语(for six month)连用。


11. C
译文:1949 年首次直飞以前,所有飞机都需着陆加油。
本句是过去完成时的用法。在过去某个时间之前一直存在的状态,表示过去的过去,所以用过去完成时。


12. D
译文:我们刚吃罢早饭,就有一位老人上门了。
本句是过去完成时的用法。在过去某个时间(come) 之前已经完成的动作(have breakfast) ,表示过去的过去,所以用过去完成时。



n.单位,单元,部件,元件,装置
  • This unit is very hard.这个单元很难。
  • This textbook has twenty units.这本课本有二十单元。
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。
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。
n.飞行,飞机的航程,航班;逃跑
  • I want to change my flight.我想变更飞行班次。
  • I lost my flight ticket.我的飞机票丢了。
v.make的过去式和过去分词
  • They were not made in china.它们不是中国制造的。
  • The monkey made a long arm for the peach.猴子伸臂去摘桃子。
adj.必需的,必要的;n.(pl.)必需品
  • If necessary,give me a ring.如果需要,打个电话给我。
  • Sleep is necessary to health.睡眠对健康是必要的。
n.陆地,国土,土地;v.登陆,登岸,卸货
  • Farmers work on the land.农民在土地上干活。
  • How long is it before we land?我们还有多长时间降落?
aux.will的过去式;愿,要;常常;大概;将要,会
  • Why would you say that?为什么你会这么说?
  • Would you please help me?你能帮帮我吗?
v.动词come的过去式
  • I was surprised why he came here so early.他为什么那么早到这里,我很惊奇。
  • The doctor came in time to save his life.医生及时来抢救他的生命。
学英语单词
accent marks
achiral reagent
air-jet spoiler
allow declaration
aromatic copolyamide microfibre
automatic priority group
bassos
Biguezal
binary synchronous communication
cable charges
call program
careening tackle
Carex nakaoana
cash balance
charnois fat
chelurids
chilonycteris parnellii
cius
clearance of spinal tuberculous focus
cold sink
condensed workweek
condictio rei furtivae
conocarp
convenientia
crassula sanguinea pall
cup compression grease
current sensitive colour display tube
cycloketone
dieve
drug screening
dwindling
eight hours rating
electric local tire spreader
elevated pedestrian crossing
euryzonous
exceptionableness
explosive limit of methane
exseller's warehouse
extended systems modelling language
family aizoaceaes
goldminers
grants in aid for highways construction
historical change
holetrous
hypertrophied
ilisha melastoma
Inacid
Incaparina
insurance density
Jahvism
job shop simulation
jus bellum dicendi
Khuzhir
Kiska I.
kraut cutter
lol theory
long put
lophoptera vittigera
low-income countries and territories
macati
Madījī
memorandum of appearance
Montegiorgio
multimammate mouse
nitromidazole
objet trouve
on this account
oxocane
permanent virtual memory
philostephanus monticola
pilled cock
PMEL
power-trip
pressure membrane method
production decline curve method
propyl alcohols
recultivated
remote duty sites
resin canal
Schori process
Scow Bay
skudded
solemnization of marriage
spliced eye
stanga
storage key
tea plant pruning machine
throat point
thumboards
top dressings
traction frequency convertor
tussock
ultraviolet-erasable
umw (ultra micro waves)
under a 9-hours photoperiod
unhuggable
unidirectional relay
universal digital interface
wiriest
worm snake
yarn and cloth quadrant
Yononin