时间:2018-12-18 作者:英语课 分类:2015年VOA慢速英语(八)月


英语课

 英语语法点:英语条件状语从句及用法


  引导条件状语从句的从属连词有if, unless (=if…not如果不……,除非), as/so long as(只要), while(=as long as只要), supposing (that)/provided /providing (that)(假如), in case(假使), on condition that(在……的条件下)等。如:
  You can learn anything so long as you set your mind to learn it. 用心学本领,总能学到手。
  I will go there tomorrow unless it rains.(=…if it doesn’t rain)除非下雨,否则我明天要去那儿。
  He will do the work providing you pay him. 如果你能付费,他可以做这工作。
  In case l forget,please remind me about it. 如果我忘了,请提醒我。
  We’ll let you use the room on condition that you keep it clean and tidy. 我们可以让你使用这个房间,条件是你把它保持整洁。
  注:条件状语从句和时间状语从句一样,从句的谓语动词不能用一般将来时态、过去将来时态或将来完成时,而要用相应的一般现在时、一般过去时和现在完成时态来替代。又如:
  Tell me in case you get into difficulty 1. 遇到困难请告诉我。
  Supposing he does not come, shall we go without him? 如果他不来,是不是不带他去?
  但若从句谓语用了will或would,那will或would则是表示“愿意”的情态动词。如:
  If you will go with me, I’ll wait for you. 如果你愿意等我,我们就帮你做这事儿。

1 difficulty
n.困难,费劲;难事,难题;麻烦,困境
  • If there is any difficulty,please let us know promptly.倘有困难,请迅速通知我们。
  • A little difficulty like this is nothing to us.这点困难算不了什么。
标签: 英语语法
学英语单词
above sb's head
acquire a broader perspective of
ActiveX component
Adam's Bridge, Adams Bridge
Add from Oldest Messages
aggregate demand management
alar folds
ALPH
araboketose
armories
arthrectasis
asbestos-cement pipe
assumes
bench mat
biovolumes
business agents
bypass anode
calibrated diaphragm
capillary equilibrium level
chromidiosome
consolatory
convex flank cam
cosm
cotton fiber content paper
crassid
destil
dispersion of fuze actuation angle
distributed parameter measurement
do-it-yourselfery
Dockweiler
dog hobbles
electroconductive gas analyzer
equilibrium blast cupola
euphory
filecard
fishery mothership
flight trainer
floating rate stock
frangible coupling
Galwa
geometric spot
German Research Satellite
grendon
gynecomasty
halieutaea indica
hysterostele
i-q
inaugural meeting
international logistic supports
ionic channels
ironmongering
iso-energetic
jackfish
Jogindarnagar
Khonj
knostantan
krithe ovoidea
let not the sun go down upon your wrath
lithotomy forceps for children bladder
Mann's sign
mass defect
mawlid
maximum and minimum
microprocessor interactivity simulator
miniature marking system
moulinettes
non ferrous metal alloy
overrulings
oyster-shell limemortar
parenteral
phospho-nitrogen system
podsolize
pointingly
polar lights
portal space
positioning table
post welding distortion
post-detection noise
rafler
range wind error
reconstuction
risk universes
self contained cooling unit
shari'a
solid forged steel roll
sports injury
stereoscopic contact
Strong-form efficiency
sudexanox
tail gas treatment
thankin
thyrotropic exophthalmus
top and bottom reflected reactor
UN-mediated
uranium of natural enrichment
vasomotor headache
VideoPlus
voltage controlled phase shifter
wallcrossing
well dressing
woodland star
zigzag stitch