2021高考英语(新高考版)一轮复习考点考法精练：第二部分+专题五 代词
专题五 代词题组1 限时模拟1.[2020广东六校联考,66]Compared with other major types of tea , it distinguishes itself by (it ) refreshingly sweet taste and beautiful silver-needle-like shape , thus enjoying great popularity among tea drinks.2.[2020河北石家庄重点高中毕业班摸底考试,65]Fiammetta Rocco said , "Reading fiction is one of the best ways we have of putting (we ) in other people’s shoes..."3.[2020广东惠州高三第二次调研,62]It all came from an experience with (he ) mother when he was about two years old.4.[2020江西南昌重点中学高三段考,69]And improved body condition makes easy for you to carry out daily tasks.5.[2020黑龙江哈尔滨第六中学期中,83]Today , China is blessed with spirited people , breathtaking development , a harmonious society and upraised international authority , making the focus , the wonder and the envy of the world.6.[2020湖南益阳、湘潭两市教学质量测评,46]So is believed that eating fish will help your wishes come true in the year to come.7.[2019广西桂林十八中高三检测,50]He lives a very regular life , studying every day and never allowing (he ) to fall behind with his schoolwork.8.[2019湖南雅礼中学高三检测,44]When they grow older than three years old , is easier for girls to catch colds than boys.9.[2019河北邢台高三检测,50]Pregnant women , for example , should limit (they ) intake ofcoffee.10.[2019河北唐山一中期中,48]Some people buy cloth shoes out of nostalgia (怀旧),while trust their quality.题组2 精选真题1.[2019天津,3]A study shows the students who are engaged in after-school activities are happier than who are not.2.[2018浙江11月,61]One cup of coffee in the late afternoon or evening will cause (they )to stay awake almost all night.3.[2018全国Ⅰ,70]If you are time poor , you need run for only half the time to get the same benefits as other sports ,so perhaps we should all give a try.4.[2017浙江11月,64]Another nice thing is that you learn both new words and (they ) use unconsciously...5.[2017浙江6月,59]"She thought I had hurt (I )," says Pahlsson.6.[2016乙卷(全国Ⅰ),68]On my recent visit , I held a lively three-month-old twin that had been rejected by (it ) mother.7.[2015浙江,12]How would you like if you were watching your favorite TV program and someone came into the room and just shut it off without asking you ?8.[2015天津,2]The quality of education in this small school is better than in some larger schools.A 专项语篇型填空(代词)The party we held last Saturday was a real success. 1 seemed to have a good time. And thefood was good. Almost 2 was left. Henry said that he really enjoyed the whole day —3the preparations and the party itself.But I felt a bit upset when George complained about the jiaozi. Indeed,4 were so salty, which would have tasted much better if I had put less salt. Some 5 guests shared my opinion as well, while there were a few guests who said they were6but salty. I’m 7 of a perfectionist,so I’ll pay attention to this and do better next time.There were more people than I had expected at the party, and nearly 8 the food was eaten up. I feared the food was far from enough. How I wish Cathy had turned up as well,so that she might have helped me with my problem. There was a happy atmosphere there, but 9didn’t take enough photographs. Bob had promised to buy some film for the camera,but he simply forgot to take10.B语法填空[2020贵州贵阳高三摸底考试]One night1winter,a bear came into Vancouver,]Canada.It walked through the city streets passing houses,shops and offices.Then it2(find)some food in bins outside a restaurant and started eating.In the morning,someone saw the bear and called the police.The police came with a vet(兽医)from the city zoo.They put the bear in a lorry and took it to the mountains outside the city.3(lucky),the bear was safe.But4happens in other countries if big animals come into cities?In Vancouver it is unusual5(see)a bear,but in some cities you can see big animals on the city streets every day.Big animals usually come into cities to find food.In Cape Town in South Africa baboons(狒狒)come into the city when they are6(hunger).Human food is very bad for baboons’7(tooth)because it has a lot of sugar.Now,there are baboon monitors working in Cape Town.8(they)job is to find baboons in the city and return them to the countryside.In Berlin, Germany,pigs sometimes come into the city for food.They eat flowers and plants in parks and gardens.Sometimes they eat vegetables from gardens9they walk on the street,causing accidents.Some people like the pigs and they give them food and water.Other people do not like the pigs and they want the government and the police to stop them10(enter)the city.题组1限时模拟1.its此处表示"它的",修饰其后的名词taste,故用形容词性物主代词its。
高考英语一轮总复习高效备考新模式第二部分狠抓基础语法6.代词课件新人教版
2. (2021全国新高考Ⅰ卷) As the song goes, this long and winding road “will never disappear”, and it will always stick in the visitor’s memory. It sure does in __m__in_e__ (I).
2. 如果语法填空中给出了代词的基本形式，要根据要填 的词在句中的作用来判断填哪种形式。作定语用形容词 性物主代词，作主语用人称代词主格，作宾语和表语用 宾格；同时注意，名词性物主代词也可作主语、宾语和 表语，但意思不同，它相当于 “形容词性物主代词+名 词”。此外，还需要注意偶尔会考查反身代词。
反
代身
主语同位语：I myself will present the prizes.
词 代 作同 我将亲自去颁奖。 (强调I)
词 位语
(强调) 宾语同位语：I saw the lady herself. 我见过那
个女士本人。(强调 the lady)
习语 by oneself 独自，独立地：She lives by herself. 她独居。 (与she一致)
形式主语：It’s no use shouting.喊叫是没有用的。
形式宾语：I find it hard to concentrate.我觉得很难集中 注意力。
强调结构：It is Mr Li who often encourages me.是李老 It 师经常鼓励我。
代 的 时间：It’s three years since I last saw her. 我三年没有见 词 用 到她了。
其
2021年新高考英语语法专题--代词知识梳理及解题指导
2021新高考英语语法专题—代词知识梳理及解题指导I.什么是代词？代词是代替名词及起名词作用的短语或句子的词。
代词分为九类：人称代词；物主代词；反身代词；指示代词；互相代词；疑问代词；连接代词；关系代词；不定代词。
II.代词的分类01 人称代词＊主格 I, you, he, she, it, we, you, they＊宾格 me, you, him, her, it, us, you, themHe is my friend.02 物主代词＊形容词性物主代词 my, our, your,your, his, her, its, their＊名词性物主代词 mine, ours,yours, yours, his, hers, its, theirs---I like his car.---Well, the car is mine.03 反身代词＊myself, yourself, herself, himself, itself,oneself, ourselves, yourselves, themselves They love each other.04 相互代词＊each other, one another05 指示代词＊this, that, these, thoseThis is an apple and that is a pear.This girl is Jane.Those men are my friends.06 疑问代词＊who,whom,whose, what, which 等，在句子中用来构成特殊疑问句。
What do you like for lunch today ?07 关系代词＊who, whom, whose, which, that, as 等，可用作定语从句的引导词，并在定语从句中充当核心成分的代词 (做主语、宾语、表语、定语等).He is the lady who lost her child 10 years ago.08 连接代词＊who, whom, whose, which, what等用来用作名词性从句引导词，并在名词性从句中充当核心成分的代词 (做主语、宾语、表语、定语等).Who will teach you dancing is still unknown.I wonder which animal runs fastest.09 不定代词不定代词是指用来指代特定名词或形容词的代词，但这类代词所指代的人或物是不特定的。
高考英语一轮语法复习 专题05 代词、介词和冠词专练(三)(含解析)-人教版高三全册英语试题
2021高考英语一轮复习语法考点代词、介词和冠词专练〔三〕一、根底达标测试〔此题共30小题，每题1分，共30分〕1.(2020.3月份质检) Give your body and brain a rest by stepping outside forwhile, exercising, or dong something you enjoy.【答案】a【解析】考查固定短语。
介词短语for a while一会；本句是指通过锻炼或做一些你喜欢的事情，让你的身体和思维休息一会。
2.(2020.沈阳5月份模拟)______ time, when the population grew, people began cutting food into small pieces so it would cook more quickly.【答案】over【解析】考查介词。
句意：随着时间的推移，当人口逐渐增长，人们开始把食物切成小块，这样可以煮的快一点。
Over time意为“随着时间的推移〞，故填over.3.(2020.浙江二模) In India, for example, most people traditionally eattheir hands.【答案】with【解析】考查介词。
句意：在印度，大局部人还是用传统的吃饭方法－－用手拿，with＋表示具体工具的名词，故填with.4.(2020·山东省一模)You can tell when you are over the top and on the downward slope, by asking yourself ______ number of questions.【答案】a【解析】考查固定短语。
短语a number of许多，大量；该形容词短语通常做定语修饰可数名词复数形式，本句中使用a number of修饰可数名词复数形式questions.故填a.5.However, he later finds out that his father was a wizard, and that his mother was a witch, both of ________ 〔they〕murdered by an evil wizard.【答案】them【解析】考查人称代词。
2021届高考英语(新高考)大二轮专题复习讲义 专题一 第5讲代词
第5讲代词在涉及有关代词的题目时，一方面要熟悉代词所作成分及考试形式，学会判断用何种代词，如，修饰名词常用形容词性物主代词，单独使用常用名词性物主代词；另一方面要牢记常见代词的区别及固定搭配，避免误用。
此外，还要注意从语意、语境上去判断人称和数，要认真阅读上下文，看清指代对象。
未来高考对代词的考查仍将侧重于其基本用法，但会加强语境的复杂性。
考点素能一根据句子成分，确定代词形式1．作主语，用人称代词主格。
2．作宾语或表语，用人称代词宾格。
3．作定语，修饰名词，用形容词性物主代词。
4．作主语、宾语或表语，且通常单独使用，用名词性物主代词。
5．作宾语、表语或同位语，且反射句子主语，用反身代词。
二根据句式结构和指代内容，判断使用it的情况1．it可指代上文提到过的同一事物或同一内容。
2．it可指代天气、时间、距离、金钱等。
3．it可作形式主语或宾语，指代不定式、动名词或从句，而把真正的主语或宾语后置。
4．某些及物动词(通常是表示情感的动词)或短语不能直接跟从句，须先用it 作宾语，再加从句，常见的有like, dislike, hate, love, appreciate, depend on, rely on, count on, see to等。
5．it常用于一些固定搭配中，如make it(成功)，it is no wonder that ... (难怪……)，when it comes to ... (当谈到……)，if I can help it(如果我有办法)，as sb put it(正如某人所言)，it takes sb some time to do sth(做某事花费某人一些时间)，it is the first time that ... (第一次……)，it is/was ... that/who ... (强调句式)等。
三根据句式和范围，确定不定代词1．两者：“二者选其一”用either；“二者都不”用neither；“二者都”用both。
2021-2022年高考英语一轮复习语法专题词类复习2讲含解析新人教版选修
2021年高考英语一轮复习语法专题词类复习2讲含解析新人教版选修有提示词的词类复习：动词、非谓语动词、形容词和副词、名词、动词、非谓语动词在前面已经复习过这里不在细讲基础知识。
名词（1）考纲要求名词应掌握以下内容：分清名词的可数性与不可数性；可数名词有单复数，有些名词只有复数；物质名词、抽象名词不可数但可以具体量化使用；名词所有格和of格的语言现象；名词直接作定语；国家名词的正确使用；名词词义的区分和搭配；单位名词的搭配；名词前的修饰语so, as, quite等；time 及常考点。
（2）命题规律名词的“可数”与“不可数”是高考命题的热点之一。
名词的考查强调语言的情景化，重点考查在特定语境、真实语境中的准确辨析、选择和运用名词的能力。
名词短语的固定搭配及名词作定语也是高考命题的注意点。
另外，在熟练掌握名词的基本意义和用法的同时，要特别留意某些名词的基本意义之外的引申、拓展和熟词生义的用法。
xx年的高考将会继续保持稳定，命题形式会更加灵活、新颖。
试题类型一般是在单选选择题或完形填空中考查。
名词的考点归纳：(1)名词词义辨析: custom风俗习惯，habit个人习惯，tradition传统；scene场景，scenery自然风景（总称），view特定位置的景观，sight人文或历史景观；skill技能，ability能力，talent才华，strength优势，长处等等(2)抽象名词具体化：beauty美、美丽（不可数名词） a beauty美人、美丽的东西（可数名词）；experience 经验（不可数名词）an experience一次经历（可数名词）；surprise吃惊、惊奇（不可数名词） a surprise 令人吃惊的人或事（可数名词）；honor荣誉、信誉（不可数名词） an honor一种光荣的人或事（可数名词）；failure失败（不可数名词） a failure/failures失败的人或事（可数名词）等等。
新高考英语一轮复习专题五形容词、副词练习含答案
专题五形容词、副词综合提升练1.People sit uncomfortably on plastic chairs,looking through old magazines,all of which have been read hundreds of times(previous).(外研XB1U1)2.Splendid as the view of the Earth is,spacewalking is not as(excite)as you might think.(译林XB3U2)3.While it was hard to pick a favourite painting out of so many amazing works,the artists who made the(deep)impression on me were two of the greatest Impressionist painters,Claude Monet and Pierre-Auguste Renoir.(译林XB1U3)4.We also need to be critical about the information we receive and remember not to(blind)trust what we have read.(译林XB2U1)5.Eight years later,Lin Qiaozhi graduated from Peking Union Medical College(PUMC)with the Wenhai Scholarship,the(high)prize given to graduates.(人教B3U2改)6.Einstein was not only a genius;he was a(courage)and kind figure loved by many people.(人教XB1U1)7.Albert Einstein,who is perhaps the greatest scientist in modern physics,is often considered one of the(smart)men who ever lived.(人教XB1U1)8.Starting with an orchestra playing traditional Chinese instruments,the opera brought a(complete)new sound to my Western ears.(外研B2U4)9.To meet the needs of today while protecting the world of tomorrow may be a challenge, but even the(simple)organisms can help teach us how to achieve this.(外研XB3U5)10.Dr.Sun Qiang,director of the research team,said they had been(whole) devoted to the research and had been taking care of more than1,000monkeys24hours a day,7days a week for more than5years.(北师大XB3U9)11.Lying under waters across the globe are an estimated three million shipwrecks.All of them represent attempts over the centuries to explore Earth's(far)corners.(外研XB4U5)12.Our power to investigate and thus understand space changed(dramatic)when the first telescope was angled at the night sky.(外研XB4U6改)13.Bogues was only1.6metres tall,which made him the(short)player ever in the NBA.(北师大B1U2)14.We can achieve almost anything online—with access to the Internet come some(true)life-changing advantages.(译林B3U3)15.For her,bettering her own record is(meaningful)than winning gold medals.(2024届重庆期中)16.Although some medical professionals are(doubt)about the far-reaching effects of TCM,the practice has been accepted as a fundamental aspect of global healthcare.(2024届山东省实验中学二诊)17.To make Bing Dwen Dwen look(adore),the design team used the image ofa baby panda.(2024届广东汕头潮阳实验学校期中)18.Martin Strel swims with a knife fastened to his right leg—in case he meets sharks and other(dead)sea life in the world's wildest waters.(2024届福建福州华侨中学期中) 19.In addition to their(architecture)achievements,the Lei family showed diligence and humility.(2024届辽宁大连金州高级中学期中)20.(basic),a tip may be provided,such as indicating whether the answer is a person,a place,or a thing.(2024届陕西西安铁一中滨河高级中学期中)21.Meanwhile,the sellers feel greatly(honor)to support themselves with their own efforts.(2024届江西宜春宜丰期中)22.Chinese idiom is one of the priceless legacies deeply rooted in traditional culture,making Chinese language more(power),more functional and thus,more fascinating.(2024届吉林长春外国语学校期中)23.If a Chinese character has two or more forms,the one with(many)strokes(笔画)is called a complex character while the one with fewer strokes is called a simplified character.(2024届福建四校联考)24.Qian Xuesen was extremely(knowledge),especially in the area of frontier science research.(2023江苏海安、金中、二十九中联考)25.According to a review of evidence in a medical journal,runners live three years(long)than non-runners.26.The most(impress)costume is a dress decorated with auspicious(吉祥的) symbols for happiness and having many children.27.While running regularly can't make you live forever,it is(effective)at lengthening life than walking,cycling or swimming.28.Bioprinting(生物打印)may be a relatively new field but the results so far are (encourage).29.As a result,people will eat more food to try to make up for that something missing.Even(bad),the amount of fast food that people eat goes up.30.People and countries have traded for thousands of years,but in today's(globe) economy,information,goods and money can move around the world at an unbelievable speed. 答案1.previously2.exciting3.deepest4.blindly5.highest6.courageous7.smartestpletely9.simplest10.wholly11.farthest/furthest12.dramatically13.shortest 14.truly15.more meaningful16.doubtful17.adorable18.deadly19.architectural 20.Basically 21.honored22.powerful23.more24.knowledgeable25.longer 26.impressive 27.more effective28.encouraging29.worse30.global。
2021版大一轮复习新高考(新课标版)精练：三角函数的概念、同角三角函数的基本关系及诱导公式(含解析)
专题五三角函数与解三角形【考情探究】课标解读考情分析备考指导主题内容一、三角函数的概念1.了解任意角的概念和弧度制的概念.2.能进行弧度与角度的互化.3.理解任意角的三角函数(正弦、余弦、正切)的定义.4.理解同角三角函数的基本关系式.5.能利用单位圆中的三角函数线推导出π2±α、π±α的正弦、余弦、正切的诱导公式.1.本专题考查的核心素养以数学运算、逻辑推理为主,同时兼顾考查直观想象.2.从近5年高考情况来看,本专题内容为高考必考内容,以中档题为主.几种题型均有可能出现.1.在备考复习中,注意基础知识的积累,基础概念、定义要弄清楚.2.切实掌握三角函数的图象、性质以及基本变换思想.3.三角函数与解三角形的综合问题,要灵活运用正弦定理或余弦定理.注意方程思想与函数思想的应用.二、三角恒等变换1.会用向量的数量积推导出两角差的余弦公式.2.能利用两角差的余弦公式导出两角差的正弦、正切公式.3.能利用两角差的余弦公式导出两角和的正弦、余弦、正切公式和二倍角的正弦、余弦、正切公式,了解它们的内在联系.4.能运用上述公式进行简单的恒等变换.三、三角函数的图象、性质及应用1.理解正弦、余弦、正切函数的性质及图象.2.能画y=Asin(ωx+φ)的图象,了解参数A、ω、φ对函数图象变换的影响.3.了解三角函数是描述周期变化现象的重要函数模型,会用三角函数解决一些简单实际问题.四、解三角形及综合应用1.掌握正弦定理、余弦定理,并能解决一些简单的解三角形问题.2.能够运用正弦定理、余弦定理等知识和方法解决一些与测量和几何计算有关的问题.【真题探秘】§5.1三角函数的概念、同角三角函数的基本关系及诱导公式基础篇固本夯基【基础集训】考点三角函数的概念、同角三角函数的基本关系及诱导公式1.单位圆中,200°的圆心角所对的弧长为()A.10πB.9πC.910π D.109π答案D2.cos330°=()A.12B.-12C.√32D.-√32答案C3.若sinθ·cosθ<0,tanθsinθ>0,则角θ是()A.第一象限角B.第二象限角C.第三象限角D.第四象限角答案D4.若角α的顶点为坐标原点,始边在x轴的非负半轴上,终边在直线y=-√3x上,则角α的取值集合是()A.{α|α=2kπ-π3,k∈Z} B.{α|α=2kπ+2π3,k∈Z}C.{α|α=kπ-2π3,k∈Z} D.{α|α=kπ-π3,k∈Z}答案D5.已知扇形的周长为20cm,当这个扇形的面积最大时,半径R的值为()A.4cmB.5cmC.6cmD.7cm答案B6.已知sin(π2+θ)+3cos(π-θ)=sin(-θ),则sinθcosθ+cos2θ=()A.15B.25C.35D.√55答案 C综合篇知能转换【综合集训】考法一利用三角函数定义解题1.(2018河南天一大联考,2)在平面直角坐标系xOy中,角α的终边经过点P(3,4),则sin(α-2 017π2)=()A.-45B.-35C.35D.45答案B2.(2018广东深圳四校期中联考,5)已知角θ的顶点与坐标原点重合,始边与x轴的非负半轴重合,终边经过点(1,4),则cos2θ-sin2θ的值为()A.35B.-35C.717D.-717答案D3.(2020届四川绵阳南山中学月考,4)已知角α的终边过点(-8m,-6sin30°),且cosα=-45,则m的值为()A.±12B.-12C.12D.√32答案C考法二同角三角函数的基本关系式的应用技巧4.(2018福建福州八校联考,8)已知sinα+3cosα2cosα-sinα=2,则cos2α+sinαcosα=()A.65B.35C.25D.-35答案A5.(2019河北邯郸重点中学3月联考,5)已知3sin(33π14+α)=-5cos(5π14+α),则tan(5π14+α)=()A.-53B.-35C.35D.53答案A6.(2018湖北武汉调研,13)若tan α=cos α,则1sinα+cos 4α= .答案 2考法三 利用诱导公式化简求值的思路和要求7.(2020届广东珠海摸底测试,3)若角θ的终边过点(4,-3),则cos(π-θ)=( ) A.45 B.-45 C.35 D.-35答案 B8.(2018河北衡水中学2月调研,3)若cos (π2-α)=√23,则cos(π-2α)=( )A.29 B.59 C.-29 D.-59答案 D9.(2018浙江名校协作体考试,13)已知sin (-π2-α)cos (-7π2+α)=1225,且0<α<π4,则sin α= ,cos α= .答案35;45考法四 同角三角函数的基本关系和诱导公式的综合应用10.(2019江西赣州五校协作体期中,15)已知角α终边上有一点P(1,2),则sin(2π-α)-sin (π2-α)cos (3π2+α)+cos(π-α)= .答案 -3【五年高考】考点 三角函数的概念、同角三角函数的基本关系及诱导公式1.(2016课标Ⅲ,5,5分)若tan α=34,则cos 2α+2sin 2α=( ) A.6425B.4825C.1D.1625 答案 A2.(2018课标Ⅱ,15,5分)已知sin α+cos β=1,cos α+sin β=0,则sin(α+β)= . 答案 -123.(2017北京,12,5分)在平面直角坐标系xOy 中,角α与角β均以Ox 为始边,它们的终边关于y 轴对称.若sin α=13,则cos(α-β)= . 答案 -794.(2018浙江,18,14分)已知角α的顶点与原点O重合,始边与x轴的非负半轴重合,它的终边过点P(-35,-4 5 ).(1)求sin(α+π)的值;(2)若角β满足sin(α+β)=513,求cosβ的值.解析(1)由角α的终边过点P(-35,-45)得sinα=-45,所以sin(α+π)=-sinα=45.(2)由角α的终边过点P(-35,-45)得cosα=-35,由sin(α+β)=513得cos(α+β)=±1213.由β=(α+β)-α得cosβ=cos(α+β)cosα+sin(α+β)sinα,所以cosβ=-5665或cosβ=1665.思路分析(1)由三角函数的定义得sinα的值,由诱导公式得sin(α+π)的值.(2)由三角函数的定义得cosα的值,由同角三角函数的基本关系式得cos(α+β)的值,由两角差的余弦公式得cosβ的值.教师专用题组考点三角函数的概念、同角三角函数的基本关系及诱导公式1.(2014大纲全国,3,5分)设a=sin33°,b=cos55°,c=tan35°,则()A.a>b>cB.b>c>aC.c>b>aD.c>a>b答案C2.(2011课标,5,5分)已知角θ的顶点与原点重合,始边与x轴的正半轴重合,终边在直线y=2x上,则cos2θ=()A.-45B.-35C.35D.45答案B【三年模拟】一、单项选择题(每题5分,共50分)1.(2020届吉林白城通榆一中月考,3)已知角α的终边过点(12,-5),则sinα+12cosα等于()A.-113B.113C.112D.-112答案 B2.(2020届四川邻水实验学校月考,4)已知tan(π-θ)=3,则sin (π2+θ)-cos(π-θ)sin (π2-θ)-sin(π-θ)=( )A.-1B.-12C.1D.12答案 D3.(2020届吉林白城通榆一中月考,2)已知扇形OAB 的圆心角为2 rad,其面积是8 cm 2,则该扇形的周长是( ) A.8 cm B.4 cm C.8√2 cm D.4√2 cm 答案 C4.(2020届宁夏银川一中月考,2)已知tan α=-3,α是第二象限角,则sin (π2+α)=( ) A.-√1010B.-3√1010C.√105D.2√55答案 A5.(2020届湖南长沙一中月考,8)如图,点A 为单位圆上一点,∠xOA=π3,点A 沿单位圆按逆时针方向旋转角α到点B (-√22,√22),则sinα=( )A.-√2+√64B.√2-√64C.√2+√64D.-√2+√64答案 C6.(2019湖南衡阳一中月考,5)已知α是第三象限角,且|cos α3|=-cos α3,则α3是( ) A.第一象限角 B.第二象限角 C.第三象限角 D.第四象限角 答案 C7.(2018湖北襄阳四校3月联考,8)△ABC 为锐角三角形,若角θ的终边过点P(sin A-cos B,cos A-sin C),则sinθ|sinθ|+cosθ|cosθ|+tanθ|tanθ|的值为( )A.1B.-1C.3D.-3 答案 B8.(2019广东珠海四校联考,3)设a=sin 5π7,b=cos 2π7,c=tan 2π7,则( ) A.a<b<c B.a<c<b C.b<c<a D.b<a<c 答案 D9.(2019北京师范大学附中期中,6)在平面直角坐标系中,角α的顶点在原点,始边在x 轴的正半轴上,角α的终边经过点M (-cos π8,sin π8),且0<α<2π,则α=( ) A.π8 B.3π8 C.5π8 D.7π8答案 D10.(2018江西南昌一模,3)已知角α的终边经过点P(sin 47°,cos 47°),则sin(α-13°)=( ) A.12B.√32C.-12D.-√32答案 A二、多项选择题(每题5分,共10分)11.(改编题)已知α是三角形的内角,且sin α+cos α=15,则有( ) A.sin α=45,cos α=-35B.sin α=-35,cos α=-45 C.tan α=-43D.tan α=43答案 AC12.(改编题)已知α为锐角且有2tan(π-α)-3cos (π2+β)+5=0,tan(π+α)+6sin(π+β)-1=0,则有( ) A.tan α=3 B.sin β=13C.sin α=3√1010D.tan β=√24答案 ABC三、填空题(每题5分,共15分)13.(2019豫北六校精英对抗赛,13)若f(x)=cos (π2x +α)+1,且f(8)=2,则f(2 018)= . 答案 014.(2018广东佛山教学质量检测(二),14)若sin (α-π4)=7√210,α∈(0,π),则tan α= .答案 -43或-3415.(2019江西金太阳联考卷(六),15)已知sin α和cos α是方程4x 2+2√6x+m=0的两个实数根,则sin 3α-cos 3α= . 答案 ±5√28四、解答题(共15分)16.(2019山东夏津一中月考,19)已知tan (π4+α)=2. (1)求tan α的值; (2)求2sin 2α+sin2α1+tanα的值.解析 (1)∵tan (π4+α)=tan π4+tanα1-tan π4·tanα=1+tanα1-tanα=2,∴tan α=13. (2)2sin 2α+sin2α1+tanα=2sin 2α+2sinαcosα1+tanα=2sin 2α+2sinαcosα(1+tanα)(sin 2α+cos 2α)=2tan 2α+2tanα(1+tanα)(tan 2α+1),由(1)知tan α=13,∴原式=2×(13)2+2×13(1+13)×[(13)2+1]=35.。
2021年高考英语 语法知识汇总 第02章 代词
英语中的代词，按其意义、特征及在句中的作用分为九种：人称代词分为主格（如：I, you, he等）和宾格（如：me, you, him）物主代词分为形容性物主代词（如：my, his, your）和名词性物主代词（如：mine, his, yours）指示代词常见的有四个：this这，that那, these这些, those那些反身代词如：myself我自己，himself他自己，themselves他们自己疑问代词用在特殊疑问句中。
有：who, whom, whose, what, which。
如：Who is that boy? What do you like?不定代词如：some一些, many许多, both两个都, everything, everybody等关系代词引导定语从句。
如：This is the boy who won the race.相互代词指each other 与 one another，意为“互相”连接代词疑问代词在引导从句时，都称为连接代词，包括who, whom, whose, what, which, whoever,whomever, whichever, whatever，一共九个。
如：It is clear enough what she meant. 她是什么意思很清楚。
（引导主语从句）I don’t care what they think. 他们怎么想我不管。
（引导宾语从句）第1讲人称代词我你他她它我们你们他们主I you he she it we you they 格宾me you him her it us you them 格形容性my your his her its my your their 物主代词名词mine yours his hers its mine yours theirs 性物主代词反身代词myself yourself himself herself itself ourselves yourselves themselves人称代词分为主格和宾格。
2023年高考英语一轮专题复习语法精讲：代词(2) 课件
代词 it
one/ ones
that/ those
用法
例句
替代前面提到过的同一个人或物。
This is our new car.We bought it yesterday.这是我们的新车。我们昨天买
的。
It's standard practice for a company like
one用来替代前面出现的单数可数名词， this one to employ a security officer.像这
about fashion. 【解析】句意为：当校园里每一个学生都穿校服的时候，就没有人会担心时尚(的问 题)了。由句意可知，设空处表示“没有人”，故填nobody。
考法训练
单句语法填空
6．The bridge links three areas, making it much more convenient to travel
base are practical. 【解析】句意为：关于月球构成的数据，比如月球上含有多少冰和其他宝藏，能够 帮助中国判断其未来月球基地的计划是否可行。结合句意可知，此处应表示“多 少”，且ice为不可数名词，故填much。
2 [浙江2019年6月改编] When every pupil in the school wears the uniform, ______ will have to worry
touching, especially if you're giving them to your mother.
考法讲解
考法二 考查it及替代词的用法
(1)考查it作替代词，指代已提及的事物、想法或已发生的事情等。考生应掌握it作替 代词与其他替代词one, that, those等的用法区别。
通用版2021届高考英语一轮专题巡练考点05代词考点详解含解析
考点05 代词代词在近年高考试题中出现频率很高，每年至少测试一道题。
一般常见的考点分布在：人称代词、物主代词、指示代词、反身代词等，尤其是不定代词的考查更是重中之重。
主要考查it和人称代词的用法。
这一专题在语法填空和短文改错中重点考查在语境中运用正确的代词。
人称、物主、反身、指示和疑问代词人称代词1. 人称代词指代的数量前后要一致。
The students must be made to understand how important each subject is to them.2.句中没有谓语动词，人称代词要用宾格。
—The town is so beautiful！I just love it. —Me too.3.在than, as后用主格、宾格都可以。
I'm taller than she/her.I'm as tall as she/her.4.在作表语时，用宾格较多。
—Who is knocking at the door? —It's me.物主代词1. 名词性物主代词＝形容词性物主代词＋名词。
Look at the two pencils. The red one is your pencil, the blue one is mine. (mine＝my pencil) 2.形容词性物主代词不与a/an, any, this, that, these, some, several, no, each, another等词连用。
3.当形容词性物主代词与all和both连用时，必须放在all和both之后。
Anyway, I can't cheat him—it's against all my principles.反身代词1. 作宾语时，常用在介词for, of, in, between, among或动词后。
You shouldn't leave the child at home by himself.含有反身代词的习惯用语有：seat oneself；behave oneself；enjoy oneself；come to oneself；devote oneself to；adapt oneself to； accustom oneself to。