信鸽往来

问:我知道unless的意思是if...not。也就是说,含有unless的句子可以用if...not来改写,含有if...not的句子也可以用unless来改写。怎样用unless来改写“Illbequitegladifshedoesntcomethisevening”呢?(辽宁鞍山吴盛)答:unless意为“除非,如果不”(exceptinthecasethat,if...not),经常可以用来代替if...not。例如:“Dontstudyveterinaryscienceifyoudontloveanimals”可改写为:Dontstudyveterinaryscienceunlessyouloveani-mals.(除非你喜欢动物,否则就不要去学兽医。)“Illbebacktomorrowiftheresnotaplanestrike”可改写为:Illbebacktomo…     

unless的语义分析

一、unless的基本含义 unless可以用来引导条件从句,其基本含义是“如果不”或“除非”。在语义上相当于“if…not”。如：1. a. You won＇ t pass the test unless you study hard. b. You won＇ t pass the test if you don＇ t study hard.     

unless=if…not吗?

一般情况下,unless在意义上相当于if…not,两者可以互换使用,并且在意义上也无甚差别,只是unless的语气更强罢了.如:1.You will fail in the examination unlessyou study harder.(=You will fail in the exami-nation if you don’t study harder.)2.I’ll tell your father unless you come hereon time tomorrow.     

句型回顾

unless+句子=if…not如果不……▲unless只要记住“如果不……”就比较容易用对。如:1)My baby sister never cries unless she is hungry.我刚出生的妹妹除非饿了,她是从来不哭的。2)I shall go there tomorrow unless I’m too busy.如果我不太忙,明天将到那儿去。▲unless放在句首也可以。如:3)Unless you go at once you will be late.如果你不马上走,就会迟到的。4)Unless he studies hard,he will never pass the examination.他如果不努力学习,就永远不能考及格。▲unless还可以当介词用,意同except。如:5)Nothing will come out …     

unless 的语义分析

正一、unless的基本含义unless可以用来引导条件从句,其基本含义是"如果不"或"除非",在语义上相当于"if...not"。如:1.a.You won’t pass the test unless you study hard.b.You won’t pass the test if you don’t study hard.解析:这两句的意思是一样的,a句可译成"除非你用功学习,否则你就不会通过考试",b句可译成"如果你不用功学习,你就不会通过考试"。其实,unless一词的英文释义是except on the condition that(除了在……的条件下)或except under the circumstances that(除了在……的情形下),也就是把unless     

状语从句专练(英文)

1. ____you show any fear,the tiger will attack you.A.Once B.Until C.Till D.While 2.The master will not attend our meeting____he____free.A .if,willbe B .if,is C.unless,shall be D .unless,is 3.No matter____busy he is,he won't give up his hobby.A .who B.how C.w hat D.where 4.She could notwalk she was eightyears old. A .when B.until C .if D .unless 5. Icould w rite down the num berofthe bus,ithad run away. A .Before B.U nless C .U ntil D .O nce 6.She had to go back to the room she ha…     

“条件”表达方式种种

英语中,“条件”的表达方式有多种,现作一归纳,以飨读者朋友们: 一、用if,unless,as(so)long as,when(如果),condition(that)等从属连词所引导的状语从句来表示条件。如:     

"闯关"条件状语从句

Ⅰ.条件状语从句的引导词关 1.以连词if引导的条件状语从句,if的意思 为"如果;假如"。例如: If you go to the party,you'll have a great time. 如果你去参加聚会的话,你将会玩得很 开心。 2.以连词unless引导的条件状语从句,unless 的意思为"除非"。例如:     

有趣的if not,not

有这样一个句子: If the weather is fine,We will go．If not, not．许多同学弄不清句中的“if not,not”是什么意思,也分不清它是什么结构。其实这是一个省略句,若补充完整,此句即为:     

初三英语Units 13-15重难点解析

I.I don’t know if it will increase?我不知道它(人口)是否会增长。(Lesson 49) 本句中if意为“是否”,相当于whether,引导一个宾语从句。if表示“是否”时,可以与whether互换使用,但与or not连用时,通常用whether而不习惯用if。例如:     

状语从句用法解析

<正>条件状语从句条件状语从句通常由if, unless, as long as等词来引导。注意：在条件状语从句中用一般现在时表示将来,即遵循“主将从现”原则。如：You won’t pass the PE exam successfully unless you exercise every day.除非你每天都锻炼,否则你不会顺利通过体育考试。If you treat others with your heart, you will get friendship in return.如果你用心对待别人,你会得到友谊作为回报。     

状语从句练习

1.The WTO cannot live up to its name_______ it does not include a country that is home to one fifth of mankind.(NMET2000) A.as long as B.while C.if D.even though 2.She found her calculator______she lost it. (2000 上海) A.where B.when C.in which D.that 3.The man will have to wait all day______the doctor works faster.(NMET2001春招) A.if B.unless C.whether D.that 4.-Did you remember tO give Marry the money you owed her?     

英语学习疑难要点

1.whether和if作“是否”讲连接宾语从句时,在口语里一般可互相换用,但当位于介词之后或与or　not连用时,习惯上只用前者。例:     

条件概念的非从句表达法

英语中的条件概念主要是由if，unless，even if，in case，suPPose，suPPosing，as longas，so long as，so far as，on condition that等引导的从句来表示的。本拟就条件概念的非从句表达法作一小结。     

浅议条件状语从句

表示条件状语从句可以由if,unless,sup-pose,supposing,in case,so(as)long as,so far as,on condition that等引起。1 由if引导 What shall we do if it rains tomorrow? 如果明天下雨,我们该怎么办? If I know her address,I'll tell you. 如果我知道她的地址,我会告诉你的。 注:(1)He'll be very pleased if you come here. (2)He'll be very pleased if you will come here.     

Humor

Teacher:Tom,do you know what’s the meaning of “Don't trouble trouble till trouble troubles you”?Tom:It means you’d better not raise your bands if you can't answerthe teacher’s questions.     

初中英语条件状语从句

一、条件状语从句的概念 条件状语从句,即在某种条件下,一件事情可能发生.在英语中由连接词if或unless等引导的状语从句叫做条件状语从句.条件是指某一件事情实现之后(状语从句中),一件事情(主句)才能发生,通常译作“假如”“只要”“如果”等意思.条件状语从句中,主从句的时态要遵循“主将从现”的原则.即,主句是一般将来时态时,从句用一般现在时代替将来时态.     

高三英语语法复习与实践（Ⅲ）——高考中频繁出现的动词时态剖析

一、复习要点: (一)一般现在时的用法: 1.在以when,while,before,after,as soonas,next time,until等引导的时间状语从句和以if,unless引导的条件状语从句中,用一般现在时表示将来。例如:     

谈高中英语中的虚拟语气

虚拟语气是英语三大语气之一.虚拟语气是表示说话人所说的并不是事实,而是一种假设、愿望、可能性和怀疑等等.它常被用于包含状语从句的主从复合句中,由if ,unless,whether,though,that等的连词引导.主要有以下几种情况: 　　……     

Put the Glas Down

A teacher began his class by holding up a glass with some water in it. He heht it up for all to see, and asked the students,“How much do you think this glass weighs？” “50 grams! ” “I really don＇ question is what ”100 grams!“ 125 grams! ” the students answered. “I really don＇t know unless I weigh it,” said the teacher, “but my question is what wouht happen if I heht it up like this for a few nunules？ ”“Nothing! ” the students said.