精品解析：天津市耀华中学2019-2020学年高一上学期期中英语试题(原卷版)
天津市耀华中学2019-2020学年度第一学期期中形成性检测
高一年级英语学科试卷
请将I卷的选择题填涂到答题卡上；II卷的答案写在答题纸上
I卷(满分70分)
I.听力理解（共20小题，每小题0.5分，满分10分）
第一节听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项。每段对话仅读一遍。
1.Where are probably the two speakers?
A.At home.
B.At school.
C.At a bookstore.
2.Why does the woman need to borrow money?
A.Because she has used up all her money.
B.Because she has left her purse at home.
C.Because she has lost her purse.
3.How does the man usually travel around?
A.By car.
B.By bus.
C.By subway.
4.What country did the man travel to?
A.China.
B.Australia.
C.America.
5.What do the two speakers most probably go there for?
A.Finding a job.
B.Looking for someone.
C.Doing some sightseeing.
第二节听下面几段材料。每段材料后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项。每段材料读两遍。
听第6段材料，回答第6至7题。
6.In which month did the man get married?
A.June.
B.July.
C.January.
7.What do we know about the woman?
A.She hasn’t got married yet.
B.She divorced not long ago.
C.She enjoys her life very much now.
听第7段材料，回答第8至9题。
8.What is the woman going to Guangzhou for?
A.Visiting her classmates.
B.Doing surveys(调查).
C.Selling her products.
9.Where did the man attend college?
A.In Guangzhou.
B.In New York.
C.In Beijing.
听第8段材料，回答第10至12题。
10.Where did the woman probably get the news?
A.From a newspaper.
B.From a TV news report.
C.From a radio news report.
11.How many people were injured?
A.At least3.
B.At least12.
C.At least24.
12.What makes the woman worried?
A.That her mother might be in danger.
B.That her friend might be in danger.
C.That a storm might hit her city.
听第9段材料，回答第13至16题。
13.What are the two speakers mainly talking about?
A.What hotels the man has stayed at.
B.What hotels are the best in Beijing.
C.Which hotel the woman should stay at in Beijing.
14.Where is Dafang Hotel in Beijing?
A.A15-minute drive from the Beijing West Railway Station.
B.A5-minute drive from Tian’anmen Square.
C.Close to the CCTV Tower.
15.Which hotel sits in the Wangfujing area?
A.Dafang Hotel.
B.Sunworld Dynasty Hotel.
C.Airport Tianyuan Hotel.
16.What do we know about Airport Tianyuan Hotel?
A.Its checkout time is by14:00.
B.Pets are not allowed to be taken in.
C.It’s too expensive to stay at it.
听第10段材料，回答第17至20题。
17.How did Tom Loveless get his findings?
A.By consulting some experts.
B.By visiting schools.
C.By reviewing some surveys.
18.How much homework did the average high-schooler have in1984?
A.30to45minutes of homework each night.
B.About an hour of homework each night.
C.About one and a half hours of homework each night.
19.What does the speaker think of homework?
A.Tiring.
B.Unnecessary.
C.Important.
20.What is mainly talked about in the end?
A.Why a lot of homework is given.
B.Students’attitudes toward homework.
C.Whether a lot of homework is necessary or not.
II.单项选择（共10小题；每小题1分；满分10分）
1.---Dad,I have decided not to go to university.
---______What about your future career as a lawyer?
A.It’s up to you.
B.Good luck with college!
C.You can’t be serious!
D.Are you jumping in with both feet?
2.The chairman remained silent______the whole debate.
A.from
B.while
C.with
D.throughout
3.The twins,who______their homework,were allowed to play badminton outside.
A.will finish
B.finish
C.have finished
D.had finished
4.It is agreed that______widely is one of the most effective ways to enlarge our vocabulary.
A.reading
B.read
C.reads
D.having read
5.In my school,English is compulsory(必修)for all students,but French and Spanish are___.
A.special
B.optional
C.typical
D.individual
6.Joining the company as a clerk(职员),he got rapid promotion(晋升),and______working as a manager.
A.ended up
B.came across
C.settled for
D.focused on
7.I am determined to have a try______it means risking losing everything.
A.now that
B.as though
C.as long as
D.even though
8.It was difficult to get a word in.Everyone______so excitedly about the new film.
A.had talked
B.talked
C.was talking
D.would talk
9.---What’s wrong?You look pale.
---Nothing serious.I’m just feeling______tired after the long walk.
A.lots of
B.a bit of
C.plenty of
D.kind of
10.I still remember the moment______I first saw him after his operation.
A.that
B.when
C.where
D.as
III.完形填空(共20小题;每小题1分;满分20分)
I don’t know why the train was unusually full today.I sat down in the only seat___11___beside a middle-aged man who had his head down and seemed to be lost in___12___.I was glad that he didn’t notice me as he just___13___to look down towards the floor.
Shortly after the train left I found myself___14___what this man was thinking about.What could be so
___15___that he didn’t even see me sit next to him?I tried to forget about it and started to read my paper.
___16___,some inner voice kept encouraging me to talk to this man.I tried to___17___but I failed.
Finally I___18___an excuse to ask him a question.When he___19___his head and turned his eyes towards me I could see that he must have been really___20___.I can’t describe the sadness which was so___21___.We talked for about20minutes and in the end he seemed to be doing___22___.As we were leaving the train he thanked me again and again.
Several weeks later,when I watched TV at home,I received a strange___23___,which only had the word Angel written on it.After I read it I was___24___touched(感动).It was a letter from the man I met on the
___25___.That day he planned to___26___his life.In his letter,he went on to___27___that he had said to God that if God really___28___him he would send someone to prevent him killing himself.In his eyes I was that
Angel sent by God.
I don’t know what that voice was that made me take a___29___and talk to a stranger but I do know that it made a___30___in someone’s life that day.So the next time you hear your inner voice,just listen to it.
11.A.offered B.left https://www.360docs.net/doc/2214774568.html,id D.missed
12.A.daydreams B.sight C.thought D.scenery
13.A.continued B.planned C.wanted D.liked
14.A.worrying B.guessing C.considering D.wondering
15.A.valuable B.important C.necessary D.strange
16.A.Therefore B.However C.Instead D.So
17.A.ignore B.remember C.realize D.accept
18.A.call for B.ask for C.came up with D.make up for
19.A.nodded B.shook C.dropped D.raised
20.A.kind B.worried C.sad D.excited
21.A.heavy B.special C.popular D.familiar
22.A.worse B.better C.harder D.less
23.A.email B.message C.letter D.newspaper
24.A.easily B.already C.often D.deeply
25.A.train B.street C.Internet https://www.360docs.net/doc/2214774568.html,
26.A.begin B.save C.change D.end
https://www.360docs.net/doc/2214774568.html,plain B.introduce C.explain D.express
28.A.called on B.cared about C.sent for D.gave up
29.A.chance B.hike C.time D.seat
30.A.mark B.decision C.difference D.start
IV.阅读理解(共15小题；每小题2分;满分30分)
A
Last night was the last game for my eight-year-old son’s soccer team.It was the final quarter.The score was two to one,my son’s team in the lead.Parents surrounded the playground,offering encouragement.
With less than ten seconds remaining,the ball suddenly rolled in front of my son’s teammate Mickey
O’Donnel.With shouts of“Kick it!”echoing across the playground,Mickey turned around and gave it everything
he had.All around me the crowd erupted(沸腾).O’Donnel had scored!
Then there was silence.Mickey had scored all right,but in the wrong goal,ending the game in a tie.For a moment there was a total hush.You see,Mickey has Down syndrome(唐氏综合症)and for him there is no such thing as a wrong goal.All goals were celebrated by a joyous hug from Mickey.He had even been known to hug the opposing players when they scored.
The silence was finally broken when Mickey,his face filled with joy,hugged my son tightly and shouted,“I scored!I scored.Everybody won!Everybody won!”For a moment I held my breath,not sure how my son would react.I need not have worried.I watched,through tears,as my son threw up his hand in the classic high-five salute and started chanting,“Way to go Mickey!Way to go Mickey!”Within moments both teams surrounded Mickey, joining in the chant and congratulating him on his goal.
Later that night,when my daughter asked who had won,I smiled as I replied.“It was a tie.Everybody won.”
31.What was the result of the soccer match?
A.Two to two,equal to both the teams.
B.Three to one in Mickey’s team’s favor.
C.Two to one in the opposite team’s favor.
D.Nobody won because of Mickey’s goal.
32.The underlined word“hush”in paragraph3means“________”.
A.cheer
B.silence
https://www.360docs.net/doc/2214774568.html,ughter
D.cry
33.What did the author worry about when Mickey scored and hugged his son?
A.The result would disappoint his son.
B.His son would shout at Mickey for his goal.
C.Mickey would again hug the opposing players.
D.The opposite team would laugh at Mickey’s goal.
34.It can be inferred from the passage that________.
A.both teams liked and respected Mickey
B.both teams were thankful for Mickey’s goal
C.Mickey didn’t mind though his goal was wrong
D.Mickey was a kind-hearted boy and hoped everybody won
35.The purpose of the author in writing the passage is________.
A.to tell a joke to make readers laugh
B.to suggest we should not mind losing
C.to show enjoying a game is more than winning a game
D.to present his son’s fine qualities of understanding others
B
I must have always known reading was very important because the first memories I have as a child deal with books.There was not one night that I don’t remember mom reading me a storybook by my bedside.I was extremely inspired by the elegant way the words sounded.
I always wanted to know what my mom was reading.Hearing mom say,“I can’t believe what’s printed in the newspaper this morning,”made me want to grab it out of her hands and read it myself.I wanted to be like my mom and know all of the things she knew.So I carried around a book,and each night,just to be like her,I would pretend to be reading.
This is how everyone learned to read.We would start off with sentences,then paragraphs,and then stories.It seemed an unending journey,but even as a six-year-old girl I realized that knowing how to read could open many doors.When mom said,“The C-A-N-D-Y is hidden on the top shelf,”I knew where the candy was.My progress in reading raised my curiosity,and I wanted to know everything.I often found myself telling my mom to drive more slowly,so that I could read all of the road signs we passed.
Most of my reading through primary,middle and high school was factual reading.I read for knowledge,and to make A’s on my tests.Occasionally,I would read a novel that was assigned,but I didn’t enjoy this type of reading.I liked facts,things that are concrete.I thought anything abstract left too much room for argument.
Yet,now that I’m growing and the world I once knew as being so simple is becoming more complex,I find myself needing a way to escape.By opening a novel,I can leave behind my burdens and enter into a wonderful and mysterious world where I am now a new character.In these worlds I can become anyone.I don’t have to write down what happened or what technique the author was using when he or she wrote this.I just read to relax.
We’re taught to read because it’s necessary for much of human understanding.Reading is a vital part of my life.Reading satisfies my desire to keep learning.And I’ve found that the possibilities that lie within books are limitless.
36.Why did the author want to grab the newspaper out of mom’s hands?
A.She wanted mom to read the news to her.
B.She was anxious to know what had happened.
C.She couldn’t wait to tear the newspaper apart.
D.She couldn’t help but stop mom from reading.
37.According to Paragraph3,the author’s reading of road signs indicates________.
A.her unique way to locate herself
B.her eagerness to develop her reading ability
C.her effort to remind mom to obey traffic rules
D.her growing desire to know the world around her
38.What was the author’s view on factual reading?
A.It would help her update test-taking skills.
B.It would allow much room for free thinking.
C.It would provide true and objective information.
D.It would help shape a realistic and serious attitude to life.
39.The author takes novel reading as a way to________.
A.explore a fantasy land
B.develop a passion for learning
C.learn about the adult community
D.get away from a confusing world
40.What could be the best title for the passage?
A.The Magic of Reading
B.The Pleasure of Reading
C.Growing Up with Reading
D.Reading Makes a Full Man
C
Why do we dream?It’s a question researchers have been studying for years.Now new research suggests that some dreams may result from the brain’s effort to keep learning,even as we sleep.
In a study in Boston,100volunteers were trained for an hour on a maze(迷宫).They tried to find their way through the difficult puzzle as quickly as possible.Then half of the volunteers were allowed to sleep for90minutes.
The other half stayed awake,reading or relaxing.The ones who slept were asked to describe their dreams when they woke up.
After the rest,the volunteers were asked again to solve the maze.Those who hadn’t slept showed no improvement or did even worse after the break.Sleepers who didn’t report any maze-related dreams did better but showed only a little improvement.However,4nap-takers who reported dreaming about maze showed a surprising improvement.They scored10times higher after sleeping and dreaming about the maze.
Even though the number of dreamers was small,the researchers noted that the gap in learning between the dreamers and the non-dreamers was so wide that the finding was significant.
The dreamers had all performed poorly on the test before dreaming about it.That suggests that struggling with a task might be the trigger that leads the sleeping brain to focus on it and work on how to deal with it.
“It’s almost as if your brain is going through everything that happened today,”Dr.Stickgold,a scientist at Harvard Medical School,said,“The things you are obsessed(着迷的)with are the ones that your brain forces you to continue to do with.”
41.What’s the best title of the passage?
A.Learning while you dream.
B.What dreams stand for.
C.Dream a good dream.
D.Dreams and health.
42.What were the volunteers asked to do after the rest?
A.To work on a new maze.
B.To continue to do the maze.
C.To talk with each other about their dreams.
D.To tell what they thought about the maze.
43.According to the study,which group showed the greatest improvement?
A.Those who didn’t sleep.
B.Those who slept but didn’t dream.
C.Those who dreamed about the maze while sleeping.
D.Those who thought about the maze before falling asleep.
44.The underlined word“trigger”in paragraph5probably means________.
A.chance
B.idea
C.way
D.cause
45.In which part of a newspaper would you most probably read this passage?
A.Business
B.Science
https://www.360docs.net/doc/2214774568.html,cation
D.Life
II卷（满分30分）
V
词语填空根据句意或所给提示用词语的正确形式填空(注意：前8个填短语；后7个填单词)
46.Hard work can often_______________a lack of intelligence.(弥补智慧上的欠缺)
47.This is really important and please make sure that everything is______________(记下来).
48._______________my high school life(回顾高中生活),I still remember the precious advice given by my headteacher.
https://www.360docs.net/doc/2214774568.html,municating more with their children is an effective way for the parents to narrow the________between their children and them.
50.The moment I__________this book(偶遇这本书)in that old bookstore,I decided to buy it.
51.I will meet my friend in the caféat the street corner,where we can talk and________with each other.(叙旧)
52.The young man who had saved the girl from being drowned(溺水)________his brave action later.(因为他的英勇行为而受到表扬)
53.My father,a great writer,achieved great success___________(在他四十多岁时).
54.D________the terrible weather,those brave climbers made it to the top of the mountain.
55.In western countries,people usually o___________Christmas by getting together with their family and having
a big meal.
56.It is such an important i_______that we can’t not ignore it in any case.(如此重要的问题)
57.We should never make rude c____________on people’s physical appearances.
58.When he a____________to his mother for being late,she forgave him immediately.
59.His legs were shaking when he stood in front so many people.O________,he was too nervous about his speech.
60.My parents are really busy nowadays and I do hope that they can take some time________work and relax. VI.书面表达(15%)
61.请按照下列要求，根据自己的亲身经历，用日记体裁，记述一段难忘的家庭往事。
要求：1.日记体裁，时间自拟，星期和日期要写完整单词；
2.记述一件发生在家庭成员之间的事件,要有细节描写；
3.要有自己对这件事情的看法或感受；
4.提示：注意体裁和时态；
5.字数：80个单词左右。
____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ____________________________________________________________________________________________ ______________________________________________________________________________
天津市南开中学2020_2021学年高一数学上学期开学考试试题含解析
天津市南开中学2020-2021学年高一数学上学期开学考试试题（含解析） 一、选择题（本大题共10小题，每小题4分，共40分） 1. 设全集U =R ，已知集合{} 2 |20A x x x =-->，{}1,0,1,2,3B =-，则 ( )U A B ?= （ ） A. {}1,0,1- B. 1,0,1,2 C. {}1,1- D. {}1,2- 【答案】B 【解析】 【分析】 先求出集合A 以及集合A 的补集 U A ，再根据集合的交集运算即可求出． 【详解】因为(){} {(1)202A x x x x x =+-=或}1x <-，所以{}U 1|2A x x -=≤≤， 即有 ( ){}U 1,0,1,2A B ?=-． 故选：B ． 【点睛】本题主要考查集合的交集和补集运算，以及一元二次不等式的解法，属于容易题． 2. 已知集合{} 23A x x =-≤≤，集合B 满足A B A =，则B 可能为（ ） A. {} 13x x -<≤ B. {}23x x -<< C. {} 32x x -≤≤ D. {}33x x -≤≤ 【答案】D 【解析】 【分析】 根据A B A =得到，A 是B 的子集，根据选项，逐项判断，即可得出结果. 【详解】因为集合B 满足A B A =，所以A B ?，又{}23A x x =-≤≤， A 选项，{} 13x x -<≤显然是集合A 的子集，不满足题意，排除； B 选项，{} 23x x -<<显然是集合A 的子集，不满足题意，，排除； C 选项，{} 32x x -≤≤不是集合A 的子集，且A 也不是{} 32x x -≤≤的子集，不满足题意，排除；
2019-2020学年天津耀华中学高一上学期期中数学试题(含答案解析)
2019-2020学年天津耀华中学高一上学期期中数学试题 一、单选题 1．已知集合{ } 2 |1,M y y x x R ==-∈，集合{} 2 |3N x y x ==-，M N = I （ ）． A ．{} (2,1),(2,1)-B ．[1,3]- C ．[0,3] D ．? 【答案】B 【解析】解：[1,)M =-+∞，[3,3]N =-， 故[1,3]M N ?=- 故选：B 2．下列判断正确的是（ ） A ．函数22()2 x x f x x -=-是奇函数 B ．函数1()(1) 1x f x x x +=--是偶函数 C ．函数2()1f x x x =+-是非奇非偶函数 D ．函数()1f x =既是奇函数又是偶函数 【答案】C 【解析】【详解】试题分析：A 中函数的定义域为{}|2x x ≠不关于原点对称，()f x 不是奇函数；B 中函数的定义域为{}|11x x -≤<不关于原点对称，()f x 不是偶函数；C 中函数的定义域为{} |1,1x x x ≤-≥或，2()1()f x x x f x -=-+-≠， 2()1()f x x x f x -=-+-≠-，所以()f x 是非奇非偶函数；D 中是偶函数，不是奇 函数.故选C. 【考点】函数的奇偶性. 【方法点睛】 判断函数奇偶性的方法：⑴定义法：对于函数()f x 的定义域内任意一个x ，都有 ()()f x f x -=〔或或()()0f x f x --=〕?函数()f x 是偶函数；对于
函数()f x 的定义域内任意一个x ，都有 〔或或 ?函数()f x 是奇函数；判断函数奇偶性的步骤：①判断定义域是否 关于原点对称；②比较 与()f x 的关系；③下结论.⑵图象法：图象关于原点成中 心对称的函数是奇函数；图象关于y 轴对称的函数是偶函数.⑶运算法：几个与函数奇偶性相关的结论：①奇函数+奇函数=奇函数；偶函数+偶函数=偶函数；②奇函数×奇函数=偶函数；奇函数×偶函数=奇函数；③若()f x 为偶函数，则()()()f x f x f x -==. 3．设函数2(1)()x a x a f x x +++=为奇函数，则实数a =（ ）． A ．1- B ．1 C ．0 D ．2- 【答案】A 【解析】∵函数2(1)()x a x a f x x +++=为奇函数， ∴22(1)(1)()()0x a x a x a x a f x f x x x -+++++-+=+=-， 化为(1)0a x +=， ∴10a +=，解得1a =-． 故选：A ． 4．设0x >，y R ∈，则“x y >”是“x y >”的（ ） A ．充要条件 B ．充分而不必要条件 C ．必要而不充分条件 D ．既不充分也不 必要条件 【答案】C 【解析】12>-不能推出12>-，反过来，若x y >则x y >成立，故为必要不充分条件. 5．若关于x 的不等式0ax b ->的解集为{} 1x x <，则关于x 的不等式02 ax b x +>-的解集为（ ） A ．{ 2x x <-或)1x > B ．{} 12x x << C ．{1x x <-或}2x > D ．{} 12x x -<< 【答案】D
天津市南开附中高一英语试题
2015-2016学年天津市南开中学高一上学期期中考试英语期中试卷 第I卷（选择题） 1．--What would you rather do this weekend, go to a concert or an art show? -- ______ Both are exciting to me. A.Is that right? B.It’s up to you. C.That’s great! D.I have got that. 2．Our teacher is very strict ______ us, and we all show our respect ______ her. A.with; for B.with; to C.in; to D.in; for 3．--I’m considering ______ to Qingdao for my holiday by train. --Why not try ______ by ship for a change? A.going; to travel B.to go; traveling C.to go; to travel D.going; traveling 4．Travelling at ______ speed of over 120 kilometers per hour, the train could arrive in Beijing in two days ______. A.a, in 1990s B./, in the 1990s C.a, in the 1990s D.the, in the 1990 5．Teachers are now aware of the difficulty that some students have ______ attention. A.paid B.to pay C.paying D.pay 6．Tom ______ in the library every night over the last three months. A.works B.worked C.has been working D.had been working 7．The Smiths live on the 15th ______ in an apartment block of forty-three ______. A.floor, storeys B.floor, story C.storeys, floors D.storey, floors 8．______ the main square, we saw a statue of about 15 meters in height. A. Approaching B. Approached C. To approach D. To be approached 9．Janet’s performance at school is well above ______. Her parents are proud of her. https://www.360docs.net/doc/2214774568.html,ual B.average https://www.360docs.net/doc/2214774568.html,mon D.ordinary 10．By the time she _____ home, her parents will have prepared some delicious food for her. A.will get B.has got C.is getting D.gets 11．This restaurant wasn’t ______ that other restaurant we went to. A.half as good as B.as half good as C.as good as half D.good as half as 12．Medical staff fled as flames and smoke filled an Indian hospital, ___ their patients to a fire, which killed 89 people. A.abandoned B.having abandoned C.to abandon D.abandoning
【2020-2021自招】天津市耀华中学初升高自主招生数学模拟试卷【4套】【含解析】
第一套：满分150分 2020-2021年天津市耀华中学初升高 自主招生数学模拟卷 一．选择题（共8小题，满分48分） 1．（6分）如图，△ABC中，D、E是BC边上的点，BD：DE：EC=3：2：1，M在AC边上，CM：MA=1：2，BM交AD，AE于H，G， 则BH：HG：GM=（） A．3：2：1 B．5：3：1 C．25：12：5 D．51：24：10 2.（6分）若关于x的一元二次方程（x－2）（x－3）=m有实数根x1,x2，且x1≠x2，有下列结论： ①x1=2，x2=3；②1 > ； m 4 ③二次函数y=（x－x1）（x－x2）＋m的图象与x轴交点的坐标为（2，0）和（3，0）． 其中，正确结论的个数是【】 A.0 B.1 C.2 D.3 3.（6分）已知长方形的面积为20cm2，设该长方形一边长为ycm，另一边的长为xcm，则y与x之间的函数图象大致是（）
A. B. C. D. 4.（6分）如图，在平面直角坐标系中，⊙O 的半径为1，则直线y x 2=-与⊙O 的位置关系是（ ） A ．相离 B ．相切 C ．相交 D ．以上三种情况都有可能 5．（6分）若一直角三角形的斜边长为c ，内切圆半径是r ，则内切圆的面积与三角形面积之比是（ ） A ． B ． C ． D ． 6．（6分）如图，Rt △ABC 中，BC=，∠ACB=90°，∠A=30°， D 1是斜边AB 的中点，过D 1作D 1 E 1⊥AC 于E 1，连结BE 1交CD 1于D 2；过D 2作D 2E 2⊥AC 于E 2，连结BE 2交CD 1于D 3；过D 3作D 3E 3⊥AC 于E 3，…，如此继续，可以依次得到点E 4、E 5、…、E 2013，分别记△BCE 1、△BCE 2、△BCE 3、…、△BCE 2013的面积为S 1、S 2、S 3、…、S 2013．则S 2013的大小为（ ） A. 31003 B.320136 C.310073 D. 671 4 7．（6分）抛物线y=ax 2与直线x=1，x=2，y=1，y=2围成的正方形有公共点，则实数a 的取值范围是（ ） A ．≤a ≤1 B ．≤a ≤2 C ．≤a ≤1 D ．≤a ≤2
2019-2020学年天津市耀华中学高一(下)第一次月考数学试卷
高一年级数学平面向量单元测验 本试卷满分100分，考试用时45分钟，祝同学们考试顺利！ 一、选择题(本大题共12个小题，每小题5分，共60分，在每小题给出的四个选项中只有一个是符合题目要求的). 1．下列命题中正确的是( ) A ．若两个向量相等，则它们的起点和终点分别重合 B ．模相等的两个平行向量是相等向量 C ．若a 和b 都是单位向量，则a ＝b D ．两个相等向量的模相等 2．化简以下各式： ①AB →＋BC →＋CA →； ②AB →－AC →＋BD →－CD →；③OA →－OD →＋AD →； ④NQ →＋QP →＋MN →－MP →. 结果为零向量的个数是( ) A ．1 B ．2 C ．3 D ．4 3．已知点A (0,1)，B (3,2)，向量AC →＝(－4，－3)，则向量BC →＝( ) A ．(－7，－4) B ．(7,4) C ．(－1,4) D ．(1,4) 4．在△ABC 中，已知D 是AB 边上一点，若AD →＝2DB →，CD →＝13 CA →＋λCB →，则λ等于( ) A ．23 B ．13 C ．－13 D ．－23 5．如图，正方形ABCD 中，点E 、F 分别是DC 、BC 的中点，那么EF →＝( ) A ．12A B →＋12AD → B ．－12AB →－12AD → C ．－12AB →＋12A D → D ．12AB →－12 AD → 6. 已知||2a =，||1b =， a 与b 的夹角为4π ，则|2|a b +＝( ) A ．8 B ．10 C ．10 D ．227．若向量a 与b 的夹角为60?，4b =，()()2372a b a b +??=?，则a 等于( ) A ．2 B ．4 C ．6 D ．12 8.已知()(),5,5,0,3?==则a 与b 的夹角为( ) A.4π B.3π C.43π D.3 2π 9．已知向量a ＝(1,2)，b ＝(2,3)?，若向量c 满足()c a +∥b ，c ⊥() a b +，则c ＝( ) A ．(79，73) B ．(－73，－79) C ．(73，79) D ．(－79，－73 ) 10．在△ABC 中，已知AB ＝3，AC ＝2，BC ＝10，则AB →·AC →等于( )
天津市2019-2020学年高一下学期期末考试英语试题 含解析
天津市2019~2020学年度第二学期期末考试 高一英语 第一部分：听力 第一节 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出一个最佳选项，并标在试卷的相应位置。听完每段对话后，你将有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1.When will the speakers get to the theater if they leave now? A.At 6: 35 B.At 7: 45 C.At 8: 20 2.Where are the speakers? A.At a department store B.At an airport C.At a restaurant 3.What does the woman ask the man to do right now? A.Watch TV B.Go to bed C.Do homework 4.What does the woman mean? A.The film is too long B.The film is too short C.The film is not interesting 5. What will the man do? A.Fly a kite with the woman B.Join a club C.Stay at home 第二节听下面几段材料。 每段材料后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置，听每段材料前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段材料读两遍。 听下面一段对话，回答第6至第8小题。 6Where does the woman want to go at first? A.The New York Hotel B.The Central Park C.The subway station 7.How will the woman go to the Central Park?
天津市南开中学2020-2021学年高一上学期开学考试数学试卷
2020~2021学年天津南开区天津市南开中学高一上学期 开学考试数学试卷 一、选择题（本大题共10小题，每小题4分，共40分） 1. 设全集U =R ，已知集合{} 2 |20A x x x =-->，{}1,0,1,2,3B =-，则 ( )U A B ?= （ ） A. {}1,0,1- B. 1,0,1,2 C. {}1,1- D. {}1,2- 【答案】B 【解析】 【分析】 先求出集合A 以及集合A 的补集 U A ，再根据集合的交集运算即可求出． 【详解】因为(){} {(1)202A x x x x x =+-=或}1x <-，所以{}U 1|2A x x -=≤≤， 即有 ( ){}U 1,0,1,2A B ?=-． 故选：B ． 【点睛】本题主要考查集合的交集和补集运算，以及一元二次不等式的解法，属于容易题． 2. 已知集合{} 23A x x =-≤≤，集合B 满足A B A =，则B 可能为（ ） A. {} 13x x -<≤ B. {}23x x -<< C. {} 32x x -≤≤ D. {}33x x -≤≤ 【答案】D 【解析】 【分析】 根据A B A =得到，A 是B 的子集，根据选项，逐项判断，即可得出结果. 【详解】因为集合B 满足A B A =，所以A B ?，又{}23A x x =-≤≤， A 选项，{} 13x x -<≤显然是集合A 的子集，不满足题意，排除； B 选项，{} 23x x -<<显然是集合A 的子集，不满足题意，，排除； C 选项，{}32x x -≤≤不是集合A 的子集，且A 也不是{} 32x x -≤≤的子集，不满足题意，
解析天津市耀华中学2021年高三第一次月考物理试题
一、单选题（每题3 分，共30 分) 1.甲乙两辆小车沿同一直线运动，速度时间图像如图所示，则（） A. 运动时甲的加速度与乙的加速度之比为４：3 B. 运动时甲的加速度与乙的加速度之比为３:4 Ｃ. 相遇前甲乙最远距离为６m Ｄ. 甲乙同时开始运动 【答案】Ｃ 【解析】 【详解】速度图象的斜率等于物体的加速度,则甲的加速度，乙的加速度：，所以运动时甲的加速度与乙的加速度之比为１：4,故AB错误;当甲乙速度相等时,相距最远,速度图象与时间轴围成的面积等于物体在该段时间内通过的位移，故C正确；由图可知,甲先运动3s后乙开始运动,故Ｄ错误。所以Ｃ正确，ABD错误。 2.有一列火车正在做匀加速直线运动．从某时刻开始计时,第1分钟内,发现火车前进了180m.第6分钟内发现火车前进了360m．则火车的加速度为( ） A. 0.01m/s2 B. 0．05m/s2 C. ３6m/ｓ2Ｄ. 18０m／s2 【答案】A 【解析】 由逐差法得x6－ｘ1＝5aT２,所以,选项A正确．
3.如图所示,质量为m的质点静止地放在半径为Ｒ的半球体上,质点与半球体间的动摩擦因数为μ,质点与球心的连线与水平地面的夹角为θ,则下列说法正确的是（) A．地面对半球体的摩擦力方向水平向左 Ｂ. 质点对半球体的压力大小为mgcosθ C．质点受摩擦力大小为μmgsinθ D．质点受摩擦力大小为mgｃｏsθ 【答案】Ｄ 【解析】 【详解】以整体为研究对象，整体处于静止状态,而水平方向不受外力，所以半球体不受地面的摩擦力，故A错误；对质点受力分析,质点受重力、支持力及摩擦力，如图所示: 在三力作用下物体处于平衡状态,则合力为零，质点对球面的压力为mｇsiｎθ，故B错误;摩擦力沿切线方向，在切线方向重力的分力与摩擦力相等，即f=mgcｏｓθ，故Ｃ错误,D正确。所以D正确，ＡＢC错误。 4.如图所示，、两物体叠放在一起,在粗糙的水平面上保持相对静止地向右做匀减速直线运动,运动过程中受到的摩擦力( ）
2019-2020学年天津市耀华中学高一上学期期末考试化学试题(解析版)
天津市耀华中学2019-2020学年高一上学期期末考试试题 Ⅰ卷（60分） 可能用到的相对原子质量：H-1 He-4 C-12 O-16 N-14 Na-23 Cl-35.5 K-39 Fe-56 一、选择题（本题包括20小题，每小题3分，共60分。每小题只有一个选项符合题意。） 1.下列分子中所有原子都满足最外层为8电子结构的是( ) A. BF 3 B. H 2O C. SiCl 4 D. PCl 5 『答案』C 『解析』 『详解』A 、BF 3中B 与F 共形成3对共用电子对，所以B 原子的最外层不满足8电子结构，错误； B 、水分子中的H 原子不满足8电子结构，错误； C 、四氯化硅分子中，Si 与4个Cl 原子形成4个共用电子对，所以Si 原子达到8电子结构，每个Cl 原子与Si 形成1对共用电子对，达到8电子结构，正确； D 、五氯化磷分子中，每个Cl 原子与P 原子形成一对共用电子对，Cl 原子达到8电子结构，而P 原子形成5对共用电子对，大于8电子，错误； 『答案』选C 。 2.Se 是人体必需微量元素。下列关于7834Se 和80 34Se 的说法正确的是( ) A. 7834Se 和8034Se 互为同素异形体 B. 7834Se 和8034Se 互为同位素 C. 78 34Se 和80 34Se 分别含有44个和46个质子 D. 78 34 Se 和80 34Se 都含有34个中子 『答案』B 『解析』 『详解』A. 4822Ti 和8034Se 质子数相同，中子数不同，故互为同位素，而不是同素异形体，故A 错误； B. 4822Ti 和8034Se 质子数相同，中子数不同，故互为同位素，故B 正确； C. 48 22Ti 和80 34Se 分别含有44个和46个中子，质子均为34，故C 错误；
天津市2016-2017学年高一第二学期期末考试英语试卷
天津市2016-2017学年高一英语下学期期末考试试题本试卷分为第I卷（选择题）、第I I 卷（非选择题）两部分，共100 分，考试用时90 分钟。请将答案涂写在答题卡和答题纸上，答在试卷上的无效。 祝大家考试顺利！ 第I卷 I. 听力(共20 小题，每题0.5 分，满分10 分) 第一节（共5小题） 听下面5段对话，每段对话后有一个小题，从题中所给的A、B、C 三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10 秒钟的时间来回答有关小题和阅读下一小题，每段对话仅读一遍。 1. What will Mark do tomorrow? A. Have tea with the man. B. Work in the country. C. Visit his grandparents. 2. What keeps the man late? A. An injury. B. A meeting. C. Heavy traffic 3. How much did the man pay for the telephone service and electricity in total last month? A. $ 25. B. $50. C. $ 100 4. How old is the girl now?
A. 12. B. 16. C. 20. 5. What’s the woman’s purpose of calling the man? A. To ask about a house. B. To put on an advertisement. C. To ask for a newspaper. 第二节（共15 小题） 听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C 三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料，回答第6、7 题。 6. Where are the speakers? A. On a bus. B. On a plane. C. On a ship. 7. Why does the man go to New York? A. To visit his daughter. B. To do sightseeing. C. To sell fruits. 听第7段材料，回答第8、9 题。 8. What’s the woman’s favorite subject?
天津市南开中学2020学年高一语文上学期期末考试试题
天津市南开中学2020学年度上学期期末考试 高一语文试卷 考试时间：120分钟 Ⅰ卷（共32分） 本试卷分第Ⅰ卷（选择题）和第Ⅱ卷两部分，共100分。考试结束后，将答题卡、答题纸与作文纸一并交回。 一、基础题（每题2分，共12分） 1．下列各组词语中加点的字读音全部正确的一项是（） A．訾詈．（lì）根茎．（jìnɡ）一椽．（chuán）梵．（fàn）婀玲B．猗．郁（yī）溘．死（kè）鸷．（zhì）鸟混混．（hún）沌沌 C．桑葚．（shèn）蕈菌．（jūn）樊．（fán）笼揠．（yà）苗助长 D．裨．益（bì）磐．（pán）石媛．（yuàn）女无济．（jì）于事2．下列各组词语中的字形全部正确的一项是（） A．肆业切蹉商確义愤填赝 B．竟相贻误掂念没精打彩 C．箜篌附掌青衿潭柘寺 D．娥眉牡马贰行搥床大怒 3．填入下列横线上的词语，最恰当的一项是（） ①月光如流水一般，静静地在这一片叶子和花上。 ②这是独处的妙处，我且这无边的荷香月色好了。 ③从槐树叶底，朝东细数着一丝一丝下来的日光。 A．泻受用漏 B．泄享用露 C．泄受用漏 D．泻享用露 4．下列各句中加点词语使用恰当的一项是（） A．在风雨飘摇 ．．．．中，女子离开了操劳了很久的家，离开了她交付了青春和爱情的男人。 B．散步来到翔宇楼前，高大巍峨的翔宇楼仿佛伫立的巨人，让人不能自 ．．．已．地严肃沉静了下来。 C．多少年来，中国能源基本上是放任自流的涸辙之鲋 ．．．．式的开采，浪费惊人，对环境和地理破坏严重。 D．在学习的过程中，浅尝辄止 ．．．．的学习方式是弊大于利的，因为这不适合高中阶段深入且广博的知识内容。
天津市耀华中学张楠老师—Na2O与Na2O2的性质比较
Na O与Na2O2的性质比较 2 By Dr.Zhang 张楠
Na 2O 2与Na 2O 的性质比较 性质Na 2O Na 2O 2 阴离子O 2-O 22-过氧根离子（-1价） 物质类别碱性氧化物过氧化物By Dr.Zhang 色态白色固体淡黄色固体 与H 2O 反应Na 2O+H 2O=2NaOH 2Na 2O 2+2H 2O=4NaOH+O 2↑与CO 2反应Na 2O+CO 2=Na 2CO 32Na 2O 2+2CO 2=2Na 2CO 3+O 2↑与HCl 反应 Na 2O+2HCl=2NaCl 2Na 2O 2+4HCl=4NaCl+2H 2O+O 2↑
Na 2O 2与Na 2O 的性质比较 性质Na 2O Na 2O 2 氧化性弱氧化性（Na +体现氧化性） 强氧化性（O 22-体现氧化性）漂白性无 有（氧化漂白，不可逆） By Dr.Zhang 稳定性2Na 2O+O 2 2Na 2O 2相对稳定 制取 6Na+2NaNO 24Na 2O+N 2↑ （不作要求）N 2对Na 2O 起保护作用 2Na+O 2 Na 2O 2 用途 制NaOH 漂白剂、消毒剂、供氧剂（防毒面具、潜艇）、制取氧气
Na2O2与Na2O的性质比较 1、氧化物分类 (1)碱性氧化物—与酸反应只生成盐和水的氧化物。如：Na2O (2)酸性氧化物—与碱反应只生成盐和水的氧化物。如：CO2 (3)两性氧化物—与酸和碱反应均只生成盐和水的氧化物。 O3 如：Al 2 (4)不成盐氧化物—不能与酸或碱反应的氧化物。如：CO (5)过氧化物、超氧化物等—氧元素的化合价不是-2。 O2（过氧化钠）、KO2（超氧化钾） 如：Na 2 By Dr.Zhang
天津市耀华中学高一上学期期末考试英语试题Word版含听力
天津市耀华中学2019-2020 学年度第一学期期末考试 高一年级英语学科试卷(本试 卷考试时间90分钟,总分100分）I 卷 (满分70 分) I. 听力理解（共20 小题，每小题0.5 分，满分10 分） 第一节听下面5 段对话。每段对话后有一个小题，从题中所给的A,B,C 三个选项中选出最佳选项，并标在试卷的相应位置。每段对话仅读一遍。 1. What is the probable relationship between the two speakers? A. Waiter and customer. B. Salesman and customer. C. Teacher and parent. 2. What time is it now? A. 9:50. B. 10:10. C. 10:00. 3. What does the woman suggest doing? A. Waiting a little longer. B. Continuing the meeting. C. Having a break. 4. What are the two speakers waiting to buy tickets for? A. A game. B. A movie. C. A concert. 5. What can we learn from the conversation? A. The woman didn’t accept the man’s apology. B. The woman appreciated the man’s offer. C. The man had hurt the woman’s feelings. 第二节听下面5 段对话。每段对话后有几个小题，从题中所给的A,B,C 三个选项中选出最佳选项，并标在试卷的相应位置。每段对话读两遍。 听第6 段材料，回答6~7 题。 6. When does the conversation probably take place? A. In the evening. B. In the afternoon. C. In the morning. 7. What’s the docto r’s telephone number? A. 76878900. B. 78678900. C. 78679800. 听第7 段材料，回答8~10 题。 8. What day is it today? A. Wednesday. B. Thursday. C. Friday. 9. What can we learn from the conversation? A. Susan is worried about the test. B. Michael has lots of free time. C. Michael doesn’t care enough about the test. 10. When will the test start? A. On Monday morning. B. On Tuesday morning. C. On Tuesday afternoon.
天津市南开中学2020-2021学年高一上学期期中考试物理试题含答案
南开中学2020-2021学年高一上学期期中考试 物理试题 单选题： 1.关于参考系，下列说法正确的是 A在研究和描述一个物体的运动时，必须选定参考系 B．由于运动是绝对的，描述运动时，无需选定参考系 C．选取不同的参考系来观察同一物体的运动，观察的结果一定是相同的 D．研究地面上物体的运动时，必须选地球为参考系 2.甲、乙两物体从同一点开始沿一直线运动，甲的x-t和乙的v-t图象如图所示，下列说法中错误的是 A．甲在3s末回到出发点，甲运动过程中，距出发点的最大距离为4m B．2?4s内乙的加速度不变 C．第3s内甲、乙两物体速度方向相同 D．2?4s内甲的位移大小为8m，乙的位移大小为0m 3.把一个薄板状物体悬挂起来，静止时如图所示。则对于此薄板状物体所受重力的理解，下列说法正确的是 A．拉力就是地球对物体的引力 B．重力大小和物体运动状态有关 C．重力的方向总是指向地心的 D．薄板的重心一定在直线AB上 4.有两个大小相等的共点力F1和F2，当它们的夹角为90°时合力的大小为F，当它们的夹角为60°时，合力的大小为 A．2F B 6 C 3 D 2
5.用斧头劈木柴的情景如图甲所示。劈的纵截面是一个等腰三角形，劈背的宽度为d，劈的侧面长为l，当在劈背加一个力F时的受力示意图如乙所示，若不计斧头的重力，则劈的侧面推压木柴的力F1为 A．l F d B． d F l C． 2 l F d D． 2 d F l 6.如图所示，一物块置于水平地面上，当用与水平方向成60°角的力F1拉物块时，物块做匀速直线运动；当改用与水平方向成30°角的力F2推物块时，物块仍做匀速直线运动．若F1和F2的大小相等，则物块与地面之间的动摩擦因数为 A．31 -B．23 -C． 31 22 -D． 3 1 2 - 7.将两个质量均为m的小球a、b用细线相连后，再用细线悬挂于O点，如图所示。用力F拉小球b，使两个小球都处于静止状态，且细线Oa与竖直方向的夹角保持θ=30°，则F的最小值为 A．mg B．3 mg C． 3 mg D． 1 2 mg 8.如图所示，一小球在斜面上处于静止状态，不考虑一切摩擦，如果把竖直挡板由竖直位置绕O点缓慢转至水平位置，则此过程中球对挡板的压力F1和球对斜面的压力F2的变化情况是 A．F1先增大后减小，F2一直减小B．F1先减小后增大，F2一直减小 C．F1和F2都一直增大D．F1和F2都一直减小
2019-2020学年天津市耀华中学高一上学期期末考试数学试题
绝密★启用前 天津市耀华中学2019-2020学年度第一学期期末考试 高一年级数学学科试卷 注意事项：1、答题前填写好自己的姓名、班级、考号等信息 2、请将答案正确填写在答题卡上 一．选择题：本大题共8小题，每小题5分，共40分，在每小题的4个选项中，只有一项是符合题目要求的，将答案涂在答题卡上．．．．．．．．．． 1. ο ο ο ο 105sin 15cos 75cos 15sin +等于 A. 0 B. 1 C. 23 D. 2 1 2. 把函数x y cos =的图象上的所有点的横坐标缩小到原来的一半（纵坐标不变），然后把图象向左平移 4π 个单位，则所得图象对应的函数解析式为 A. )421cos(πx y += B. )42cos(πx y += C. )82 1cos(πx y + = D. )2 2cos(πx y += 3. 7.03=a ,37.0=b ,7.0log 3=c ,则c b a ,,的大小关系是 A. b a c << B. a c b << C. a b c << D. c a b << 4．设R ?∈,则“=0?”是“()=cos(+)f x x ?()x R ∈为偶函数”的 A ．充分不必要条件 B ．必要不充分条件 C ．充分必要条件 D ．既不充分也不必要条件 5．已知函数()f x 是定义在R 上的偶函数, 且在区间[0,)+∞单调递增. 若实数a 满足212 (log )(log )2(1)f a f f a ≤+, 则a 的取值范围是 A ．[1,2] B ．10,2?? ??? C ．(0,2] D ．1,22?? ???? 6. 在ABC ?中，若tan tan 33tan A B A B +=?，且3 sin cos B B ?= ， 则ABC ?的形状为 A. 直角三角形 B. 等边三角形 C. 等边三角形或直角三角形 D. 等腰直角三角形
上学期天津市部分区县高一英语期末试卷
上学期天津市部分区县高一英语期末试卷 第Ⅰ卷（选择题共75分） 一．听力（共15题；每小题1分，满分15分） 第一节听下面5段对话，每段对话后有1个小题，从A、B、C三个选项中选出最佳选项。每段材料读一遍。 1. What can we learn from this conversation? A. The two speakers met each other in a foreign country. B. The two speakers used to know each other. C. The two speakers didn’t know each other. 2. What is the relationship between the two speakers? A. Mother and son. B. Teacher and student. C. A shop owner and a child. 3. What do we know about Peter Schmidt? A. He has lost his ticket. B. He is expecting a ticket. C. He went out to buy a ticket. 4. What place is close to Jane and Bill’s new house? A. An airport. B. A bus station. C. A train station. 5. Where does this talk most likely happen? A. At the boy’s house. B. Near the lake. C. In the school. 第二节听下面对话或独白，选出最佳选项。每段材料读两遍。 听第6段材料，回答6~8题。 6. What is the girl shopping for? A. A present for her mother. B. A present for a friend. C. A present for her father. 7. How much is the black wallet? A. $13.99. B. $40.95. C. $25.99. 8. What does the girl decide to buy? A. A black wallet. B. A brown wallet. C. A tie. 听第7段材料，回答第9至11题。 9. Who is Mrs Green? A. A doctor. B. Bob’s English teacher. C. One of Bob’s teachers. 10. Where does the woman talk with Bob? A. In the classroom. B. At home. C. At the school gate. 11. What’s Bob? A. A clever boy. B. A good student. C. A clever but lazy boy. 听第8段材料，回答第12至13题 12. Where does the woman work now? A. In a company. B. In a college. C. In a factory. 13. What do you think the relationship between the two speakers is? A. Friends. B. Neighbors. C. A couple. 听第9段材料，回答第14至15题 14. Why wouldn’t the woman like to go out with the man?
天津市南开中学高一数学下学期期中考试试卷
南开中学高一数学期中考 第Ⅰ卷 一、选择题（本大题共12个小题，每小题5分，共60分，在每小题给出的四个选项中，只有一项是符合题目要求的） 1、在ABC ?中，00 45,60,1B C c ===，则B = A 66．12 D 3 2、在ABC ?中，07,2,60a b A = ==，则c 的值为 A ．1 B ．2 C ．3 D ．4 32,5,2,11,L ，则25 A ．第6项 B ．第7项 C ．第10项 D ．第11项 4、在等差数列{}n a ，若24681080a a a a a ++++=，则7812 a a - A ．4 B ．6 C ．8 D ．10 5、若等比数列{}n a 的前n 项和3n n S a =+，则a 等于 A ．3 B ．1 C ．0 D ．-1 6、各项都是正数的等比数列{}n a 的公比1q ≠，且成等差数列2311, ,2a a a ，则3445a a a a ++的值为 A 15- B 15+ C 51- D 15+51-7、已知2()156 n n a n N n +=∈+，则数列{}n a 的最大项 A ．12a B ．13a C ．12a 或13a D ．不存在 8、设是公差为的无穷等差数列{}n a 的前n 项和，则下列命题红正确命题的个数 ①若0d <，则数列{}n S 有最大项； ②若数列{}n S 有最大项，则0d <；
③若数列{}n S 是递增数列，则对任意的n N +∈，均有0n S >； ④若对任意的n N +∈，均有0n S >，则数列{}n S 的递增数列. A ．1个 B ．2个 C ．3个 D ．4个 9、在ABC ?中，173sin tan 5 B ==，若AB C ?17 A 210172 D 32 10、已知数列{}n a 的前n 项和n S ，首项123a =- ，且满足12(2)n n n S a n S ++=≥，则2015S A ．20132014- B ．20142015- C ．20152016- D ．20162017 - 第Ⅱ卷 二、填空题：本大题共4小题，每小题5分，共20分，把答案填在答题卷的横线上.. 11、在ABC ?中，若120,5,7A AB BC ∠===，则sin sin B C 值为 12、等差数列{}n a 中，若129104,36,n a a a a S +=+=是数列{}n a 的前n 项和，则10S = 13、设等比数列{}n a 的前n 项和为n S ，若423S S =，则64 S S 的值为 14、在数列{}n a 中，111,22n n a a a +==+，则数列{}n a 的通项公式 15、在数列{}n a 中，7(1)()8 n n a n =+，则数列{}n a 中的最大项是第 项. 16、在数列{}n a 中，1112,(2)2()n n n n a a a n N λλλ+++==++-∈，则数列{}n a 的通项 n a = 三、解答题：本大题共6小题，满分70分，解答应写出文字说明、证明过程或演算步骤 17、（本小题满分12分） 在ABC ?中，角,,A B C 的对边分别是,,a b c 3cos sin 0a C c A -=.