下面小编为大家带来高三英语期中的单元总知识点分析(共含5篇),希望大家能够受用!同时,但愿您也能像本文投稿人“高紫菜”一样,积极向本站投稿分享好文章。
过渡性连接词
表强调:
still,indeed,ofcourse,afterall,aboveall,surely,certainly,undoubtedly,inanycase,anyway,infact,especially,obviously,clearly
表比较
like,unlike,similarly,inthesameway,equally,similarto
表对比
bycontrast,onthecontrary,while.,whereas,ontheotherhand,unlike,instead,but,differentfrom,however,otherwise,yet,theformer…thelatter,once…now,some…other,yearsago…today
表列举
foronething…andforanother,like
表举例
Forexample,forinstance,suchas,take…forexample,except[for]
表时间
Later,next,then,finally,atlast,eventually,meanwhile,fromnowon,fromthenon,atthesametime,forthetimebeing,intheend,immediately,inthemeantime,inthemeanwhile,recently,soon,nowandthen,during,nowadays,since,lately,afterwards,temporarily,earlier,now,afterawhile,when,while,before,after,until,assoonas,then,suddenly,inafewdays,inrecentyears,earlythismorning/year/century,allofsudden,themoment
表顺序
First,second,third,firstly,secondly,thirdly,tobeginwith,firstofall,inthefirstplace,last,finally,eventually,intheend,atlast,next,aboveall,firstandmostimportant,meanwhile
表解释
Inotherwords,infact,asamatteroffact,thatis,thatistosay,namely,
表递进
Whatismore,inaddition,and,alsobesides,too,moreover,furthermore,aswellas,aswell,again,additionally,whatisworse?
表让步
Although,though,eventhough,afterall,inspiteof,evenif,
表转折
However,ratherthen,insteadof,but,yet,ontheotherhand,unfortunately,despite
表原因
Forthisreason,for,nowthat,thanksto,assince,owingto,because,becauseof,dueto,
表结果
So,so/such…that,therefore,thus,asaresult,accordingly
表总结
Onthewhole,inconclusion,inaword,tosumup,inbrief,insummary,toconclude,tosummarize,inshort,ingeneral,generallyspeaking,aboveall,afterall
其他
Mostly,occasionally,naturally,mainly,exactly,commonly,forthispurpose,formostofus,inmanycases,inthiscase.
虚拟语气在一些特殊词中的使用或含蓄条件句
1.wish后的宾语从句。
与现在愿望不一致,用主语十过去时,例如:
I wi。hIwere you.
与过去愿望不一致,用主语+had+过去分词,例如:Iwish I had visited the White House whenI was in the States与将来愿望不一致,用主语+would (could)+原形。
2.It's time句型:当lt's tine后用that从句时应该为主i吾+should+动词原形或主语十过去时,例如:It,s time thatyou went to school.或It's time that you should go to schooL
3- If only引起的感叹句相当于“How I wish+宾语从句”。
(l)If only he could come.他要能来就好了。
(2)If only I had known the answer.我要早知道答案就好了。
4.WOuld rather,as if(though)引导的从句也需使用虚拟语气,表示过去的情况用过去完成时,表示现在与将来的情况用过去时,例如:
(l)I'd rather you posted the letter right away.
(2)She loves the children as if they were hers.
5.含蓄虚拟条件句含蓄条件句是指句中没有明显的虚拟条件句,而是利用其他手段来暗示存在虚拟条件。但是这类隐含式虚拟条件句往往都可以转化为if引导的条件句。常用来表示含蓄虚拟条件的手段有:
(1)介词或介词短语。如but for,but that,without,in case of, under more favorable condition等。
(2)连词。如so that, unless, in case, supposing,lest, provided(倘若……),for fear that(唯恐),in orderthat, on condition that, if only(要是……就好了)等。
注意:lest, for fear that和in case引起的从句中谓语动词多用should+动词原形,但也可以不用虚拟语气,而用动词的陈述语气形式。例如:The foreign teacher spokeslowly in case we misunderstood him这位外籍教师说得很慢以免我们误解。
(3)通过上下文及内在含义,句中往往有but,otherwise, unfortunately等类似转折词。
without, but. but for, otherwise引起的短语或句子常暗含着含蓄条件。例如:
①Without you,1 would never know him
②But for your oooperation, we wouldn't have done it
③But that she was afraid, she would have said no. .
④i would be most glad to help you, butI am busy now.
⑤I would have come to the party yesterday, but ljwas working.
⑥I am busy now, otherwise l would do you the favor!
副词的排列顺序:
1) 时间,地点副词,小单位的在前,大单位在后。
2) 方式副词,短的在前,长的在后,并用and或but等连词连接。
Please write slowly and carefully.
3) 多个不同副词排列:程度+地点+方式+时间副词。
注意:副词very 可以修饰形容词,但不能修饰动词。
改错:(错) I very like English.
(对) I like English very much.
注意:副词enough要放在形容词的后面,形容词enough放在名词前后都可。
I don't know him well enough.
There is enough food for everyone to eat.
There is food enough for everyone to eat.
two Marys the Henrys
monkey---monkeys holiday---holidays
2) 以o 结尾的名词,变复数时:
a. 加s,如: photo---photos piano---pianos
radio---radios zoo---zoos;
b. 加es,如:potato--potatoes tomato--tomatoes
c. 上述a和b两种方法均可,如zero---zeros / zeroes。
3) 以f或fe 结尾的名词变复数时:
a. 加s,如: belief---beliefs roof---roofs
safe---safes gulf---gulfs;
b. 去f,fe 加ves,如:half---halves
knife---knives leaf---leaves wolf---wolves
wife---wives life---lives thief---thieves;
c. 上述a和b两种方法均可,如handkerchief: handkerchiefs / handkerchieves。
表语从句
表语从句在复合句中作表语的名词性从句,放在系动词之后,一般结构是“主语+连系动词+表语从句”。可以接表语从句的连系动词有be, look, remain, seem等。引导表语从句的that常可省略。另外,常用的还有the reason is that… 和It is because 等结构。
例如:
1) The question is whether we can make good preparation in such a short time.
2) This is why we can’t get the support of the people
3) But the fact remains that we are behind the other classes.
4) The reason he is late for school is that he missed the early bus.
四.同位语从句
同位语从句就是在复合句中作名词的同位语的名词性从句。
1. 同位语从句的功能。
同位语从句对于名词进一步解释,说明名词的具体内容,一般由that引导。
例如:
1) The king’s decision that the prisoner would be set free surprised all the people.
2) The order that all the soldiers should stay still is given by the general.
2. 同位语在句子中的位置。
同位语从句有时可以不紧跟在它所说明的名词后面,而是被别的词隔开。
例如:
He got the news from Mary that the sports meeting was put off.
3. 同位语从句与定语从句的区别。
(1) 定语从句中的that既代替先行词,同时以在从句中作某个成分(主语或宾语),而同位语从句中的that是连词,只起连接主句与从句的作用,不充当句中任何成分。
(2) 定语从句是形容词性的,其功能是修饰先行词,对先行词加以限定,描述定的性质或特征;同位语从句是名词性的,其功能是对名词进行补充说明。例如:
1) The news that he told me is that Tom would go abroad next year.(他告诉我的消息是汤姆明年将出国。)(第一个that引导的从句是定语从句,that在从句中作宾语)
2)The news that Tom would go abroad is told by him.(汤姆将出国的消息是他讲的。)(同位语从句,that在句中不作任何成分) 。
不等关系
一般地,用纯粹的大于号“>”、小于号“<”连接的不等式称为严格不等式,用不小于号(大于或等于号)“≥”、不大于号(小于或等于号)“≤”连接的不等式称为非严格不等式,或称广义不等式。总的来说,用不等号(<,>,≥,≤,≠)连接的式子叫做不等式。
通常不等式中的数是实数,字母也代表实数,不等式的一般形式为F(x,y,……,z)≤G(x,y,……,z )(其中不等号也可以为<,≤,≥,> 中某一个),两边的解析式的公共定义域称为不等式的定义域,不等式既可以表达一个命题,也可以表示一个问题。
苏教版高三数学上册第三单元不等关系知识点
一元二次不等式
苏教版高三数学上册第三单元知识点:一元二次不等式
含有一个未知数且未知数的次数为2的不等式叫做一元二次不等式。它的一般形式是 ax?+bx+c>0 或 ax?+bx+c<0(a不等于0)其中ax?+bx+c是实数域内的二次三项式。
二元一次不等式(组)与简单的线性规划问题
苏教版高三数学上册知识点:二元一次不等式(组)与简单的线性规划问题
满足二元一次不等式(组)的x和y的取值构成有序数对(x,y),所有这样的有序数对(x,y)构成的集合称为二元一次不等式(组)的解集。
基本不等式
基本不等式主要应用于求某些函数的最值及证明不等式。其可表述为:两个正实数的几何平均数小于或等于它们的算数平均数。
★ 期中考试成绩分析