雅思阅读语法7--名词性从句
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雅思阅读名词性从句是烤鸭们必须掌握的一个知识点,下面分享了相关的定义和备考方法,大家可以参考一下。
一、名词性从句的定义和分类在句中起名词作用的句子叫做名词性从句,该从句能作为主语、宾语、表语、同位语、介词宾语等成分。
所以,相应地,名词性从句有四个分类:主语从句、宾语从句、表语从句和同位语从句。
通常从句都需要有相应的连接词,名词性从句也不例外。
常见的名词性从句连接词可以分为三类:1. 不做任何成分的连接词:that、whether/if、as if/as though;2. 连接代词:what、whatever、who、whoever、whom、whomever、whose、whosever、which、whichever;3. 连接副词:when、whenever、where、wherever、how、however、why。
二、名词性从句的用法讲解1、主语从句:主语从句就是在复合句中充当主语成分的句子。
常见的主语从句的连接词有that、whether、who、when、how等。
主语从句的时态一般不受主句时态的影响和限制。
同学们还需要注意的是英语中为了避免头重脚轻,经常会把主语从句放在后面,用一个形式主语来代替。
给大家举个例子吧:It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time (that) humans had formed even permanent settlements. (剑 6 Test 2 passage 3)句子结构分析:主语是it,指代后面的由两个特殊疑问词how and when引导的主语从句,谓语是will never be known,but表转折,第二个it作形式主语,指代后面的that主语从句,系动词是is,表语是certain。
名词性从句全面讲解名词性从句是英语中的一种从属从句,它在句中充当名词的功能。
名词性从句可以在句子中作主语、宾语、表语和同位语等,并且可以由不同的引导词引导。
本文将全面讲解名词性从句的基本概念、用法及常见的引导词。
一、名词性从句的概念名词性从句是由一个词或一个词组引导的从句,它在句子中充当名词的角色。
名词性从句通常出现在复杂的句子中,起到连接主句和从句的作用。
名词性从句的引导词有很多种类,常见的有:that, whether, if, what, which, who, whom, whose, when, where, why等。
二、名词性从句的用法名词性从句可以在句子中作不同的成分,下面分别介绍其主要用法。
1. 名词性从句作主语名词性从句可以作为主语来引导句子,常用的引导词有:- That: That he is innocent surprises me.(他是无辜的让我吃惊。
)- Whether/If: Whether he will come or not is uncertain.(他是否会来还不确定。
)- What: What you said is true.(你说的是真的。
)2. 名词性从句作宾语名词性从句可以作为宾语来引导句子,常用的引导词有:- That: I know that he is a doctor.(我知道他是个医生。
)- Whether/If: I wonder whether/if it will rain tomorrow.(我想知道明天是否会下雨。
)- What: I don't understand what he is saying.(我不明白他在说什么。
)3. 名词性从句作表语名词性从句可以作为表语来引导句子,常用的引导词有:- That: The truth is that she is not happy.(事实是她不幸福。
)- Whether/If: The question is whether/if we should go or not.(问题是我们是否应该去。
说道雅思语法的名词性从句,首先想问大家一个问题,那就是,什么是从句:clause:s(subject)+v(verb)一个句子都要有一个独立的从句,简单句除外。
而名词从句是一个从属句,什么意思呢?就是名词性从句不能成为一个单独的完成的句子,它只能在句子中充当一个成分(part of a sentence)。
今天我们就讲怎么用名词从句。
1、连接词(conjunction)连接名词从句的连接词到底有哪些:that、which、who、whom、whose、what、if、whether、when、where、why、how、whoever、whomever、whenever、wherever、whatever、whichever。
这是所有的连接词,有些可要谨慎使用哦~这些连接词,有的也可以连接定语从句,但是同学们在雅思语法学习时要注意“that”这个连接词。
因为当that引导从句的时候,常常被省略。
还有一些连接词既可以做连接词,也可以做从句中的主语,比如“which”“who”“what”还有“who/which/what-ever”,注意“whom”做宾语成分。
2、When to use and How to use基本来说,名词从句通常有四种用法。
1)名词性从句做主语What she wore to the party really turned some heads.名词从句:“What she wore to the party”——连接词“what” 名词从句里的主语“she”,动词“wore”。
整个句子的动词“turned”,turned前面都是主语。
名词从句充当主语成分。
Whoever wants to know should ask me.我们来找这句话的动词,两个——“wants”和“should ask“。
“wants”的主语是“whoever”,“should ask”的主语是“whoever wants to know”。
雅思阅读长难句《剑七物语》--名词性从句名词性从句24. In any event, whether or not the reason is the energy expense, it seems to be the case that, with the possible exception of some weird deep-sea fish, no animal apart from man uses manufactured light to find its way about.25. What those early craftsmen had found by trial and error was that under pressure a pagoda?s loose stack of floors could be made to slither to and fro independent of one another.26. And what began as a wholly practical exercise in keeping illegal drugs out of Australia may end up playing a role in an entirely different sphere ---the comparatively esoteric world of neurobiology.27. Experiments showed that , in fact, facial vision is nothing to do with touch or the front of the face, although the sensation may be referred to the front of the face ,like the referred pain ina phantom limb.28. This means that a forest policy is vital, that it must transcend national frontiers and generations of people , and that it must allow for the inevitable changes that take place in the forests, in needs, and hence in policy.29. But the underlying mathematical theories of radar and sonar are very similar, and much of our scientific understanding of the details of what bats are doing has come from applying radar theory to them.30. MIRTP focuses on what would be most appropriate for the inhabitants of Makete in terms of what was available , how much they could afford and what they were willing to accept. 31. Vandeloo and champness assess the dogs? abilities toconcentrate by marking t hem on a scale of between one and five according to how well they remain focused on a toy tossed intoa patch of grass.32. The underlying assumption was that the time saved would be used instead for activities that would improve the social and economic development of the communities.33. And yet most of us have had the experience of having to adjust to sleeping in the mountains or the countryside because it was initially …t oo quite?, an experience that suggests that humans are capable of adapting to a wide range of noise levels.34. Lozanov?s instructional technique is based on the evidence that the connections made in the brain through unconscious processing(which he calls non-specific mental reactivity) are more durable than those made through conscious processing.35. Through meeting with the staff and satisfied students they develop the expectation that learning will be early and pleasant and that they will successfully learn several hundred words of the foreign language during the class.36. The general declaration was made that …a central place in any ecologically coherent forest policy must be given to continuity over time and to the possible effects of unforeseen events, to ensure that the full potential of those forests is maintained?.37. It would h ave been easy to criticize the MIRTP for using in the early phases a …top-down? approach, in which decisions were made by experts and officials before being handed down to communities, but it was necessary to start the process from the level of the governmental authorities of the distinct.38. Rather, they contend, it was almost certainly the result ofclimatic shifts, prompted in part by cumulative effects of the elnino?la nina phenomenon on Pacific Ocean temperatures, culminating in a harsh winter in which huge numbers of salmon eggs were frozen.39. It would be noted, however, that a donkey which at 20,000 Tanzanian shillings costs less than a bicycle, is still an investment equal to an average household?s income over half a year.40. It was once thought that the fungus that ants cultivate was a single type that they hadpropagated, essentially unchanged from the distant past.41. Landlords obviously have to agree to any changes so it is important that the contract includes details of what will be allowed and how much extra will be charged on top of the costs of rebuilding or alteration.42. Some water experts are now demanding that existing infrastructure be used in smarter ways rather than building new facilities, which is increasingly considered the potion of last, not first, resort.43. Besides the laboratory evidence for this, we know from our experience that we often remember what we have perceived peripherally, long after we have forgotten what we set out to learn.44. Just as a doctor calls on the full power of autocratic suggestion by insisting that the patient take precisely this capsule precisely three times a day before meals, Lozanov is categoric in sisting that the suggestopedic session be conducted exactly in the manner designated, by trained and accredited suggestopedic teachers.45. Although forest fires do not affect all of Europe to thesame extent, the amount of damage cause the experts to propose as the third relolution that the Strasbourg conference consider the establishmnet of a Europen databank on the subject.46. Studies carried out by Turner of many thousands of New and Old World specimens, both ancient and nodern, suggest that the majority of prehistoric Americans are linked to Northern Asian populations by crown and root traits such as incisor shovling (a scooping out on one or both surfaces of the tooth), single-rooted upper first premolars and triple-rooted lower first molars.47. Florence is one of a truly new breed: the product of what is perhaps the only project in the world dedicated to breeding dogs solely to detect drugs.48. You might say that this is a problem of their own making, one that they could avoid simply by changing theri habits and hunting by day.49. Another difference from conventional teaching is the evidence that students can regularly learn 1000 new words of a foreign language during a suggestopedic session, as well as grammar and idiom.50. That is mainly because the costs of all this damage are what economists refer to as externalities; they are outside the main transaction, which is for example producing and selling a field of wheat, and are borne directly by neither producers nor consumers.51. Florence could help neurobiologists to understand both what they call “attention processing”, the brain mechanisms that determine what a person pays attention to and for how long, and its flip side, problems such as Attention Deficit/ Hyperactivity Disorder.(ADHD).52. Darby had started a business in bristol, but he moved to Coalbrookdale in 1710 with an idea that coke derived from coal could provide a more economical alternative to charcol as a fuel forioronmaking.53. The Sonar and Radar pioneers didn?t know it then, but all the world now knows that bats, or rather natural selection working on bats, had perfected the system tens of millions of years earlier, and their “radar”achieves feats of detection and navigation that would strike an engineer dumb with admiration.54. Discussions now centers on whether the route through the maze is communicated as a “left-right” sequence of turns or as a “compass bearing and distance” message.。