时间:2019-02-23 作者:英语课 分类:英语PK台


英语课

   定义:


  在句子中担当主语的是一个从句,这个从句就叫做主语从句。也就是说:主语从句是在复合句中充当主语的从句,通常放在主句谓语动词之前或由形式主语it代替,而本身放在句子末尾。
  例句:
  That she survived the air crash is a miracle.
  空难中她幸存了,简直是个奇迹。
  Whether we will hold a party in the open air tomorrow depends on the weather.
  明天是否可以在露天开派对得看天气情况。
  What you need is more practice.
  你需要的就是实践。
  Where we should go is a problem.
  我们要去哪儿真是一个问题。
  When they will come hasn't been made public.
  他们的来访时间还未公布。
  It is common knowledge that the whale is not a fish.
  鲸鱼不是鱼,这是一个常识。
  引导词(连词):
  1. 从属连词引导的主语从句:that/whether/if
  that引导的主语从句:引导词that 无含义,在句中不单独做成分,不可以省。注意:That 引导主语从句通常用it作形式主语。
  例如:
  That you will win the medal seems unlikely.
  你不太可能获得奖牌。
  That she survived the air crash is a miracle.
  空难中她幸存了,简直是个奇迹。
  It is common knowledge that the whale is not a fish.
  鲸鱼不是鱼,这是一个常识。
  whether 引导的主语从句:whether有含义(是否),在句中不单独做成分,不可以省。注意:引导主语从句,不能用if不能在开头,只能用whether。
  例如:
  Whether we will hold a party in the open air tomorrow depends on the weather.
  明天是否可以在露天开派对得看天气情况。
  Whether she is coming or not doesn't matter too much.
  她能不能来其实并不重要。
  if 引导的主语从句:if不能在开头,需要用形式主语it,句首只能用whether。
  例如:
  It is not my business if it is right to do.
  这样做对不对不关我的事。
  不能说:If it is right to do is not my business.
  可以说:Whether it is right to do is not my business.
  2. 用连接代词引导的主语从句:who, whose, whom, which, what, whoever, whomever, whichever, whatever
  在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中,其连接代词在句中起名词性作用,担当一定成分。
  例如:
  What you need is more practice.
  你需要的就是实践。
  Whatever we learn from the changes of Chinese characters is the core of social and cultural development.
  我们从学习中文的变化中可以了解社会文化发展的精髓。
  补充:whatever/whoever的功用
  whatever, whoever在主语从句中不含疑问意义,它引导主语从句,并在从句中作主语、宾语、表语等。whatever=anything that; whoever=anyone who。要注意和whatever, whoever引导的让步状语从句的区别。
  例如:
  任何触犯法律的人都将受到惩罚。
  Whoever breaks the law should be punished. (主语从句)
  (=Anyone who breaks the law should be punished.)
  Whoever breaks the law, he should be punished. (让步状语从句)
  (=No matter who breaks the law, he should be punished.)
  3. 连接副词:when, where, why, how
  由连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语)。
  例如:
  Where we should go is a problem.
  我们要去哪儿真的是一个问题。
  When they will come hasn't been made public.
  他们的来访时间还未公布。

标签: 英语PK台
学英语单词
absolute dollar criterion
ahata
al qatranah (el qatrana)
alarm handsetting yoke spring
Alizarine Yellow R
aluminum ferrocyanide
amount ceded
Anisodus luridus
apoplasmatic
aromatic vegetable
back-seat driving
Bactylan
bailage
beat at
beta-decay
Blountstown
borelaps
cam chair
case survey
ceramic bearing
certiffied officer
Cochabamba, Dep.de la
code bases
commercially pure aluminium
control instrumentes
criso-
cyclising
cylindromatous endothelioma
cynoscion macdonaldi
draft-age
elevated temperature impact test
elite party
enterocholecy stostomy
entine
envelope of holomorphy
exclusive segments
external subroutine name
feance
Fenazona
fenitrothions
frostbitten
group control supervisory panel
gullitt
hamman-rich(syndrome)
haydons
hcf, h.c.f.
hearth bottom
high vaccum measurement
honeysuckle ornament
housewide
Hypnorex
IDC (interest during construction)
inoculation syringe
interpolation test
irrascible
jlg
Lipis, Sungai
macroretrenchment
marrying wedge
mechanical jaundice
metalithium
monotopic
muricaceans
nemophora issikii
Neo-Cholex
nimbi
noncontributory
odor phase
pecuniary interest
plasmolysis degree
plate jiggering machine
political unit
power-nap
Pradillo
presence sensing device
pushing notch of barge
put on the map
relay contactor control
rosaniline hydrochloride
rrap
scan-based testing
selenate radical
soil scientist
sour-looking
source of manure
specification of colors
static attribute
static pressure hole
stirred ourselves
stump section
tack down
tetraphenylbutadiene
too-close
transmutational
twill-weave
underwater rock drill
United Nations Conference on the Human Environment
unmitering
unpreparedness
Urzulei
Wackersdorf
your secret's safe with me