时间:2019-02-04 作者:英语课 分类:英文语法词汇


英语课

   whether与that均可引导名词从句,该如何区别呢?


  __________ we’ll go camping tomorrow depends on the weather.
  A. If B. Whether C. That D. When
  此题应选 B。容易误选A,C。
  1. 关于if与whether:两者都可引导宾语从句,常可换用; 但若引导主语从句,则用whether (不用if),排除A。又如。如:
  他是否会来还是个问题。
  误:If he will come is a question.
  正:Whether he will come is a question.
  2. 关于whether和that:两者都可引导主语从句,其区别主要应从句意来考虑:whether表示“是否”,由它引导的主语从句的意思通常是不确定的;that 引导主语从句时,本身没有词义(that在其他名词性从句中也没有词义),但是由that引导的整个主语从句的意思通常是确定的。试比较:
  1. a. That we’ll hold a meeting is decided 1. 我们要召开一次会议,这已决定了。
  b. Whether we’ll hold a meeting is not decided. 我们是否要开一个会,这还没有决定。
  2. a. That he has left here is clear. 他已离开了这儿,这点很清楚。
  b. Whether he has left here is not clear. 他是 否已离开这儿,这还不清楚。
  3. a. That he can finish it in two hours is clear. 他能在两小时内完成它,这是显然的。
  b. Whether he can finish it in two hours is a question. 他能否在两小时内完成它还是问题。

adj.决定了的,坚决的;明显的,明确的
  • This gave them a decided advantage over their opponents.这使他们比对手具有明显的优势。
  • There is a decided difference between British and Chinese way of greeting.英国人和中国人打招呼的方式有很明显的区别。
标签: 名词从句
学英语单词
a rummage sale
Anaspida
anterior meniscus displacement without reduction
antiinsurgency
archery range
arterial cannulation
articulatio synovialiss
atom collision
automaps
bicarbonates of soda
Bishoff
black collar axle
boldero
bring the ship to a step
calf's snout
capital costs
choke control
clysis
coconut fatty acid monoethanolamide
conscient
darking
demilune cell
difficult to obtain material
discrete variate
dna-bindings
dog-trot
domestic shipment financing
egosystem
egyptian lotus nymphaea
etopside
European Depository Receipt
European nuthatch
eye level view shot
false representation
farfamed
forerecited
forest expectation value
frontal diaphragm
fruit dropping disease
Furay'
gaure
gauze element
genital segment
hand-tamped
have advantage over
high-rate discharge tester
human touch
in due time
infundibulin
jockey valve
Jurislav
Karmel, Har
kuitiya (okinawa)
kuniuling series
lancely
limit of enumeration
line extender
lug-worm
manufacturing equipment
Mayet's paste
menisarine
mentri
monetary telephone
Nazilike
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non-recurrent waste
odd even logic
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play at sth
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specific gravity flask
spheric diffraction loss
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statutory requirement
steady-state response
stipulation for effective payment in a foreign currency
thick-necked
This is where we come in.
tossies
train operation control system
train staff
tributary line
Vattarfjördhur
watt-hour demand meter
zigzag pipe bender Z