新概念英语语法总汇if从句新概念英语语法中if从句是一个重点也是个难点。
If引导从句形式多样、含义多变,在生活中使用频率极高的从句。
本文详细归纳了if从句的主从句的逻辑关系,帮助大家正确理解、把握和使用if从句。
一、if引导状语从句,表示”如果...”,”假使...”。
if引导状语从句是对就现在,过去,未来可能实现之事加以推测。
例如:If I win a lot of money I'll buy you a mink coat.如果我赢了钱,我会给你买件貂皮大衣(新概念一册第137课)。
If you park your car in the wrong place, a traffic policeman will soon find it.如果你把车停在不应该停的地方,交警会找到你的(新概念第二册第16课)。
二、if用于虚拟语气中1.与现在事实相反:从句动词过去式,主句用would/could/should/might+动词原形。
例如:If I were you, I would ask him his telephone number.如果我是你,我会问他的电话号码的。
If I were you, I would help him 如果我是你,我会帮助他。
2.与过去事实相反:从句had+动词过去分词,主句would/could/should/might+have+动词过去分词。
例如:If I had known, I wouldn't have done it. 假使我知道,我就不会做那件事。
If you ate more and talked less, we would both enjoy our dinner! 如果你少说多吃,我们都会很享受那顿晚餐的!(新概念英语第二册第40课)3. 与将来事实相反:从句should/were to + 动词原形,主句would/could/should/might+动词原形例如:If it should rain, the crops might be saved. 如果下雨,庄稼就有救了。
If it should rain tomorrow, I shall not [shan't, won't] come 万一明天下雨,我就不来。
三、if引导宾语从句,表示“是不是...”基本等同于whether例如:Ask him if it is true 问他那是不是真的I wonder if he is in the school 我不知道他是否在学校推荐课程:新概念英语1+2 册状语从句新概念英语语法中时间状语是个重点,也是难点。
一般由when、as、while、before和after等连词所引导,每个引导词所表示的意思不同,相对应的时间关系,以及它在具体句子中时态、语态都不同。
下面小编为大家总结了一些如何区分由不同连词所引导的时间状语从句的技巧。
一、when、as、while引导的时间状语从句区分When、as、while皆有表示“当……的时候”。
When既可以指时间段也可指时间点,从句中既可用延续性动词又可用非延续性动词,且动作既可和主句的动作同时发生又可在主句的动作之前或之后发生。
While强调主句的动作与从句的动作同时持续地进行,谓语动词必须是延续性动词。
As侧重表示两个动作同时发生,或者一种动作随着另一种动作的变化而变化。
例句:1、When my husband was going into the dining room this morning, he dropped somecoins on the floor. 今早当我丈夫走进饭厅时,把一些硬币掉到地上了。
2、While we were having breakfast, our little boy found two coins on the floor. 当我们正吃早饭的时候,我们的小男孩在地上找到两枚硬币。
3、He jumps as he goes along. 他边走边跳二、before和after 引导的时间状语从句区分Before引导时间状语从句时表示主句的动作发生在从句动作之前,而after引导时间状语从句正好相反,它表示主句的动作发生在从句动作之后。
例句:1、It was some time before we realized the truth. 过了一段时间我们才意识到真相。
2、 He gave us our exercise books after he had corrected them. 他修改完以后才把练习本给我们。
推荐课程:新概念英语第二册新概念英语第1+2+3册表示强调的方式新概念英语语法中为了强调英语句子中的某一成份,强调方式是多种多样的,现将它们归纳如下,以供参考。
1.用形容词“very”,“single”等表示强调e.g.Red Army fought a battle on this very spot.红军就在此地打过一仗。
Not a single person has been in the office this afternoon.今天下午竟然没有一个人来过办公室。
2.用反身代词表示强调e.g.I myself will see her off at the station.我将亲自到车站为她送行。
You can do it well yourself.你自己能做好这件事情。
3.用助词“do”表示强调e.g.The baby is generally healthy,but every now and then she does catch a cold.那孩子的健康状况尚好,但就是偶尔患感冒。
Do be quiet.I told you I had a headache.务必安静,我告诉过你,我头疼。
4.用副词“very”,“only”,“even”,“too”等表示强调e.g.He drank it to the very last drop.他把它喝得一干二净。
Only in this way can we wipe out the enemy troops.只有用这样的方法我们才能消灭敌军。
He didn't answer even my letter.他甚至连我的信都未回。
I will too go!我要去的!5.用“...and that”,“...and those”,“not...too much”,“否定加否定”等结构表示强调e.g.They fulfilled the task,and that in a few days.他们在几天内完成的就是那项任务。
I gave her some presents,and those the day before yesterday.前天我送给她的就是那些礼物。
I can't thank you too much.我无论怎样感谢你都不过份。
I am not unfaithful to you.我对你无比忠诚。
6.用短语“in every way”,“in no way”,“by all means”,“by no means”,“only too”,“all too”,“but too”,“in heaven”,“in the world”,“in hell”,“on earth”,“under the sun”等表示强调e.g.His behaviour was in every way perfect.他的举止确实无可挑剔。
By all means take your son with you.你一定要把儿子带来。
The news was only too true.这消息确实是事实。
It was over all too soon!此事的确了结得很快!Where in heaven were you then?当时你到底在哪里?Nobody under the sun would buy that car.确实没有人会买那辆车。
7.用倒装句表示强调e.g.Dishonest he is!他的确不诚实!In wine is the truth. 酒后吐真言。
8.用强调句型表示强调e.g.It was the headmaster who opened the door for me.正是校长为我开的门。
It was yesterday that we carried out that experiment.就是在昨天我们做了那个实验。
相关课程推荐:新概念英语第一册新概念英语1+2+3册宾语从句新概念英语语法中宾语从句是一个重点和难点,小编为大家总结了8条that不省略的宾语从句:引导宾语从句的that在下列情况下一般不省略:1. 宾语从句前有插入语。
如:We hope, on the contrary, that he will stay at home with us. 恰恰相反,我们希望他和我们呆在家里。
2. 有间接宾语时。
如:He told me that he was leaving for Japan. 他告诉我他要去日本。
3. that在与之并列的另一个宾语从句之后。
如:He said (that) the book was very interesting and that(不省略) all the children like to read it.他说那本书很有趣,所有小孩都喜欢读。
4. 在“it(形式宾语)+补语”之后时。
如:I think it necessary that he should stay here. 我们认为他有必要留在这里。
5. that从句单独回答问题时。
如:—What did he hear? 他听说了什么事?—That Kate had passed the exam. (他听说)凯特考试及格了。
6. 在except等介词后。
如:He has no special fault except that he smokes too much.他除了抽烟太多之外,没有什么特别的毛病。
7. 位于句首时。
如:That our team will win, I believe. 我相信我们队会赢。
8. 在较为正式或不常用的动词(如reply, object)后。
如:He replied that he disagreed. 他回答说他不同意。
相关课程推荐:新概念英语第二册比较级的修饰语新概念英语语法中讲到了比较级,那修饰比较级用什么样的词汇呢,这些词汇又怎么用呢?下面为大家总结比较级的修饰语:一、比较级前可用a bit, a little, rather, some(肯定句及请求或建议的问句中), any(否定句或疑问句中)表示“稍稍,一点”;用much, far, a great/good deal, a lot, lots, a good bit等表示“……得多”;用still(只用于肯定句), even, yet等表示“更加”。