宁夏长庆高级中学2016届高三上学期第三次月考英语试题 Word版含答案.doc

宁夏长庆高级中学2018-2019学年高三第三次月考英语试卷（总分：150分；考试时间：120分钟）第Ⅰ卷第一部分：听力（共两节，满分30分）第一节(共5小题：每小题1.5分，满分7.5分)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. Where does the conversation take place?A. In a restaurant.B. In a library.C. In a bookstore.2. What will Lily do during the summer holiday?A. Study at home.B. Go abroad for a holiday.C. Visit her grandparents.3. What is the weather like now?A. Rainy.B. Sunny.C. Windy.4. Why is the man angry?A. He has to attend a meeting.B. He wasn't invited to the meeting.C. No one told him the cancel.5. What's wrong with the woman?A. She has lost something.B. She has lost her way.C. She has missed the bus.第二节（共15小题；每小题1.5分，满分22.5分）听下面5段对话或独白。

每段对话或独白后有几个小题，从每题所给的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。

宁夏长庆高级中学2019-2020学年第一学期高三第三次月考英语试卷（分值：150分；考试用时：120分钟）第一部分听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）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. Who is coming for tea?A. John.B. Mark.C. Tracy.2. What will the man do next?A. Leave right awayB. Stay for dinner.C. Catch a train.3. What does the man come for?A. A lecture.B. A meeting.C. A party.4. What size does the man want?A. 9.B. 35.C. 39.5. What are the speakers talking about?A. Life in Southeast Asia.B. Weather conditions.C. A holiday tour.第二节（共15小题；每小题1.5分，满分22.5分）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. What is the man doing?A. Giving a speech.B. Chairing a meeting.C. Introducing a person.7. Why does the woman sing so well?A. She has a great teacher.B. She teaches singing.C. She is young.听第7段材料，回答第8、9题。

宁夏长庆高级中学2020-2021学年第一学期高三年级12月月考英语试卷分值:150分时间:120分钟第一部分：听力（共两节，满分30分）第一节：（共5小题；每小题1.5分，满分7.5分）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’s the telephone number of the Academic Office?A. 310-218-1452 .B. 310-280-1501 .C. 310-280-1552 .2.What makes the man speaker surprised?A. His heavy body.B. His poor health.C. His irregular exercise.3.Where does the man see the advertisement?A. On the poster.B. On the television.C. In the newspaper.4.What’s the weather like today?A. Cloudy.B. Sunny.C. Windy.5.What is the woman likely to do?A. To attend a party on Friday.B. To attend a ball on Friday.C. To have a party on Friday.第二节（共15小题，每小题1.5分，满分22.5分）听下面6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, ,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6-8题.6.What’s the probable relationship between the two speakers?A. Businessman and salesgirl.B. Manager and salesgirl.C. Salesman and salesgirl.7.What does the man want to buy a computer for?A. For himself.B. For his friend.C. For his business.8.How does the man pay for the computer?A.In cash.B. By check.C. By installment plan.听第7段材料，回答第9-11题9.Where will the woman go?A.To the library.B. To the school.C. To the zoo.10.What is the relationship between the speakers?A.Strangers.B. Friends.C. Colleagues.11.Which bus will the woman choose?A. No.36.B. No.301.C. No.310.听第8段材料，回答第12-14题。

2020届宁夏银川市长庆高级中学高三上学期第三次月考英语试卷★祝考试顺利★（分值：150分；考试用时：120分钟）第一部分听力（共两节，满分30分）第一节（共5小题；每小题1.5分，满分7.5分）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. Who is coming for tea?A. John.B. Mark.C. Tracy.2. What will the man do next?A. Leave right awayB. Stay for dinner.C. Catch a train.3. What does the man come for?A. A lecture.B. A meeting.C. A party.4. What size does the man want?A. 9.B. 35.C. 39.5. What are the speakers talking about?A. Life in Southeast Asia.B. Weather conditions.C. A holiday tour.第二节（共15小题；每小题1.5分，满分22.5分）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. What is the man doing?A. Giving a speech.B. Chairing a meeting.C.Introducing a person.7. Why does the woman sing so well?A. She has a great teacher.B. She teaches singing.C. She is young.听第7段材料，回答第8、9题。

2019届宁夏长庆高级中学高三上学期第三次月考英语试卷【含答案及解析】姓名___________ 班级____________ 分数__________一、阅读理解1. One afternoon last week, I saw three tearful children from my son’s school being comforted by teachers. That morning, my 11-year-old had stomach pains, retching(干呕)into a bowl. Talking to other mothers later, I heard about other children with stomachache or difficulty sleeping the night before.What caused so much pain? Sports day. Sports day might be necessary at a highly-competitive independent school, but notat a village primary school. For the children who can fly like the wind, sports day causes no problem. For those who are overweight or just not good at sport, it is a nightmare(噩梦). Even for those who enjoy running but fall halfway down the track in front of the entire school and their parents, it can prove a disaster.Why do we put our children through this annual suffering? Some may say competition is character building; or it’s taking part, not winning, that’s important; or that it is a tradition of school life. I just felt great pity for those children in tears or in pain.Team games at the end of sports day produced some close races, wild enthusiasm, lots of shouting—and were fun to watch. More importantly, the children who were not so fast or quick at passing the ball were hidden a little from everyone’s eyes. Some of them also had the thrill ofbeing on the winning side.I wish that sports day could be abandoned and replaced with some other less-competitive event. Perhaps an afternoon of team games, with a few races for those who want them, would be less stressful for the children and a lot morefun to watch.1. What can we learn about the author’s son from Paragraph 1?A. He talked with some mothers.B. He comforted his classmates.C. He had difficulty in sleeping.D. He suffered from stomachache.2. Sports day is still an annual event in this school probably because .A. this is an independent schoolB. it is a tradition of the schoolC. it helps children lose weightD. children enjoy watching sports3. What does the author think about team games?A. They should include more stressful races.B. They are acceptable to different children.C. They should be abandoned at primary schools.D. They are less fun for those who love running.4. What is the author’s attitude towards sports day?A. Critical.B. Neutral. ___________C. Positive.D. Ambiguous.2. With around 100 students scheduled to be in that 9 am Monday morning lecture, it is no surprise that almost 20 people actually make it to the class and only 10 of them are still awake after the first 15 minutes; it is not even a surprise that most of them are still in their pyjamas( 睡衣 ). Obviously, students are terrible at adjusting their sleep cycles to their daily schedule. All human beings possess a body clock. Along with other alerting(警报)systems, this governs the sleep/wake cycle and is therefore one of the main processes which govern sleep behaviour. Typically, the preferred sleep/wake cycle is delayed in adolescents, which leads to many students not feeling sleepy until much later in the evenings. This typical sleep pattern is usually referred to as the“night owl”schedule of sleep.This is opposed to the“early bird”schedule, and is a kind of disorder where the individual tends to stay up much past midnight. Such a person has great difficulty in waking up in the mornings. Research suggests that night owlsfeel most alert and function best in the evenings and at night. Research findings have shown that about 20 percent of people can be classifiedas“night owls”and only 10 percent can be classified as“early birds”—theother 70 percent are in the middle. Although this is clearly not true for all students, for the ones who are true night owls this gives them an excellent excuse for missing their lectures which unfortunately fall before midday.1. What does the author stress in Paragraph 1?A. Many students are absent from class.B. Students are very tired on Monday mornings.C. Students do not adjust their sleep patterns well.D. Students are not well prepared for class on Mondays.2. Which of the following is true according to Paragraph 2?A. Most students prefer to get up late in the morning.B. Students don’t sleep well because of a lerting systems.C. One’s body clock governs the sleep/wake cycle independently.D. Adolescents’delayed sleep/wake cycle isn’t the preferred pattern.3. Which of the following is closest in meaning to the underlined word “classified”?A. Criticised.B. Grouped. _________C. Organised.D. Named.4. What does the text mainly talk about?A. Functions of the body clock.B. The “night owl” phenomenon.C. Human beings’ sleep behaviour.D. The sch ool schedule of “early birds”.3. I was never very neat, while my roommate Kate was extremely organized. Each of her objects had its place, but mine always hid somewhere. She evenlabeled(贴标签)everything. I always looked for everything. Over time, Kate got neater and I got messier. She would push my dirty clothing over, and I wouldlay my books on her tidy desk. We both got tired of each other.War broke out one evening. Kate came into the room. Soon, I heard her scre aming, “Take your shoes away! Why undermy bed! ”Deafened, I saw my shoes flying at me. Ijumped to my feet and started yelling. She yelled back louder.The room was filled with anger. We could not have stayed together for a single minute but for a phone call. Kate answered it. From her end of the conversation, I couldtell right away her grandma was seriously ill. When she hung up, she quickly crawled(爬)under her covers, sobbing. Obviously, that was something she should not go throughalone. All of a sudden, a warm feeling of sympathy roseup in my heart.Slowly, I collected the pencils, took back the books, made my bed, cleaned the socks and swept the floor, even onher side. I got so into my work that I even didn’tnotice Kate had sat up. She was watching, her tears dried and her expression one of disbelief. Then, she reached outher hands to grasp mine. I looked up into her eyes. She smiled at me, “Thanks. ”Kate and I stayed roommates for the rest of the year. We didn’t always agree, but we learned the key to living together: giving in, cleaning up and holding on.1. What made Kate so angry one evening?A. She couldn’t find her books.B. She heard the author shouting loud.C. She got the news that her grandma was ill.D. She saw the author’s shoes beneath her bed.2. The author tidied up the room most probably because .A. she was scared by Kate’s angerB. she hated herself for being so messyC. she wanted to show her careD. she was asked by Kate to do so3. How is Paragraph 1 mainly developed?A. By analyzing causes. ________________________B. By showing differences.C. By describing a process. _________D. By following time order.4. What might be the best title for the story?A. My Friend Kate___________________________________B. Hard Work Pays OffC. How to Be Organized______________D. Learning to Be Roommates4. Recently I spoke to some of my students about what they wanted to do after they graduated, and what kind of job prospects they thought they had.Given that I teach students who are trained to be doctors, I was surprised to find that most thought that they would not be able to get the jobs they wanted without “outside help”. “What kind of help is that?” I asked, expecting them to tell me that they would need a relative orfamily friend to help them out.“Surgery(外科手术), ”one replied. I was pretty alarmed bythat response. It seems that the graduates of today are increasingly willing to go under the knife to get ahead of others when it comes to getting a job. One girl told me that she was considering surgery to increase her height. “They break your legs, put in special extending screws, and slowly expand the gap between the two ends of the boneas it regrows. You can get at least 5 cm taller! ”At that point, I was shocked. I am short. I can’t deny that, but I don’t think I would put myself through months of agony(痛苦)just to be a few centimeters taller. I don’t even bother to wear shoes with thick soles, as I’m not trying to hide the fact that I am just not tall!It seems to me that there is a trend toward wanting “perfection”, and that is an ideal that just does notexist in reality.No one is born perfect, yet magazines, TV shows and movies present images of thin, tall, beautiful people as being the norm. Advertisements for slimming aids, beauty treatments and cosmetic surgery clinics fill the pages of newspapers, further creating an idea that “perfection” is a requirement, and that it must be purchased, no matter what the cost is. In my opinion, skills, rather than appearance, should determine how successful a person is in his chosen career.1. Many graduates today turn to cosmetic surgery to .A. marry a better man/womanB. become a modelC. get an advantage over others in job-huntingD. attract more admirers2. According to the passage, the author believes that .A. everyone should pursue perfection, whatever the cost isB. it’s right for graduates to ask for others to help them out in hunting for jobsC. media are to blame for misleading young people intheir seeking for surgeryD. it is one’s appearance instead of skills that really matters in one’s career3. What does the author think of his height?A. He hates to be called a short man.B. He tries to increase his height through surgery.C. He always wears shoes with thick soles to hide the fact.D. He just accepts it as it is.二、信息匹配5. 根据短文内容, 从短文后的选项中选出能填入空白处的最佳选项。

2021届宁夏长庆高级中学高三上学期12月月考英语试卷Word版含答案宁夏长庆高级中学2020-2021学年第一学期高三年级12月月考英语试卷分值:150分时间:120分钟第一部分：听力（共两节，满分30分）第一节：（共5小题；每小题1.5分，满分7.5分）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’s the telephone number of the Academic Office?A. 310-218-1452 .B. 310-280-1501 .C. 310-280-1552 .2.What makes the man speaker surprised?A. His heavy body.B. His poor health.C. His irregular exercise.3.Where does the man see the advertisement?A. On the poster.B. On the television.C. In the newspaper.4.What’s the weather like today?A. Cloudy.B. Sunny.C. Windy.5.What is the woman likely to do?A. To attend a party on Friday.B. To attend a ball on Friday.C. To have a party on Friday.第二节（共15小题，每小题1.5分，满分22.5分）听下面6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, ,各小题将给出5秒钟的作答时间. 每段对话或独白读两遍。

山东省2016届高三英语上学期第三次月考试题本试卷分第I卷（选择题）和第II卷（非选择题）两部分。

满分150分。

考试时间120分钟。

第I卷（选择题 105分）注意事项：1．答卷前，考生务必将自己的姓名、准考证号、考试科目填涂在答题卡上：2.每小题选出答案后，用铅笔把答题卡上对应题目的答案标号涂黑。

如需改动，用橡皮擦干净后，再选涂其他答案标号。

不能答在试卷上。

第一部分英语知识运用（共两节，满分45分）第一节单项填空（共10小题：每小题1.5分，满分15分）阅读题意，根据所给的四个选项(A、B、C、D)中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。

1. —Congratulations！You have been admitted to Oxford.— ______ I can't believe my ears.A. Why not?B. So what?C. Have I?D. What's up?2. Willie has complained to the sales manager about the PC he bought _____ screen explodedfor no reason.A. whichB.where C. whose D.when3. —Wow, you have a really good voice. I_____ you were good at singing.—Thank you.A. haven't knownB. hadn't knownC. don't knowD. didn't know4. Many graduates are busy traveling, _____to find a satisfactory job.A. to expectB. to have expectedC. expectingD. having expected5. Mr. White had hardly finished the speech _____the students started cheering.A. whenB. whileC. asD. after6. Nobody knows ______it was that made Jeff so embarrassed .A. howB. whyC. whatD. which7. Jacob is always ready to offer a helping hand and that's ____he has a good reputation.A. whereB. whenC. howD. why8. Peter bought a new digital camera, but ______often breaks down,A. oneB. the oneC. itD. that9. Every time Ashrita tries to break a record, he reaches a point ______ he feels he cannotphysically do any more.A. whenB. whereC. howD. that10. Unless______, the fridge won't work properly.A. reparingB. having repairedC. being repairedD. repaired第二节完形填空（共30小题：11--20题每小题1分，21—40题每小题1.5分；满分40分）阅读下面两篇短文，从11--40各题所给的四个选项A、B、C、D）中出可以填入空白处的最佳选项，并在答题上将该项涂黑。

第一部分：听力（共两节，满分30分）第一节：（共5小题；每小题1.5分，满分7.5分）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。

听下面5段对话,选择正确答案1. Where does the dialogue happen？A. At a school.B. At a bus stop.C. At home.2. What are the speakers going to eat tonight？A. Pizza.B. Chicken.C. Vegetable salad.3.When will the film start？A. At 7:45.B. At 7:55C. At 8:004.What is the relationship between the two speakers？A. Good friends.B. Husband and friends.C. Customer and waitress.5.Why did the woman waste the first day of her holiday？A. Her plan was cancelled.B. The weather was bad.C. The bus was broken.第二节：（共15小题；每小题1.5分，满分22.5分）听第六段材料，回答第6、7题6.How does the woman suggest the man go to her house？A. By taxi.B. By bus.C. On foot.7.When will the man arrive at the woman’s house？A. At about 7:05.B. At about 7:15.C. At about 7:20听第七段材料，回答第8、 9两题8.How does the man like the fish cooked？A. Have it baked.B. Have it fried.C. Have it steamed.9.What drink does the man order？A. Beer.B. Cola.C. Fruit juice.听第八段材料，回答第10至12题10.Where will the man mail his letter？A. T o Australia.B. To Austria.C. To America.11.How will the man mail his parcel？A. By ordinary mail.B. By express.C. By air.12.How much will the man pay in total？A. $2.B. $5.C.$7听第九段材料，回答第13至16题13.Why does the woman like collecting stamps？A. She can gain much knowledge.B. Some great people do so.C. Pictures in the stamps are beautiful.14.What kind of photos does the man like to take？A. His family.B. Natural scenery.C. Rare stamps.15.What does the woman think of the man’s hobby？A. Boring.B. Costly.C. Meaningless.16.How does the man support his photography？A. By hosting personal exhibition.B. By getting prizes in photo competitions.C. By borrowing money from his parents.听第十段材料，回答第17至20题17.Who are the judges from the first stage？A. Professional cooks.B. Local citizens.C. School teachers.18.Where is the local final held？A. At a college.B. At a restaurant.C. At a middle school.19.What’s the hardest part of the third stage？A. Listing every step of the food preparation.B. Cooking a meal to a fixed budget.C. Sticking to the time plan.20.What is unknown about the national final？A. What meal will be cooked？B. How much time will be given？C. How many people the meal will be cooked？第二部分阅读理解（共两节,满分40分）第一节（共15小题,每题2分,满分30分）阅读下列短文, 从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

第三次月考英语试题英语试题满分120分。

考试时间100分钟。

注意事项:1.答题前，务必将自己的姓名、准考证号填写在答题卡规定的位置上。

2.答选择题时，必须使用2B铅笔将答题卡上对应题目的答案标号涂黑。

如需改动, 用橡皮擦擦干净后，再选涂其它答案标号。

3.答非选择题时，必须使用0.5毫米黑色签字笔，将答案书写在答题卡规定的位置上。

4.所有题目必须在答题卡上作答.在试题卷上答题无效。

5.考试结束后，将试题卷和答题卡一并交回。

第I卷一、单项填空（共15小题；每小题1分, 满分15分。

）请从A,B,C,D四个选顶中.选出可以填入空白处的最佳选项，并在答题卡上将该选项的标号涂黑。

例：A computer can only do ________ you have instructed it to do.A. howB. afterC. whatD. when答案是C。

1. —Hi, Mary! Do you know where Jim is?— I think he ________ a lecture in the library.A. will deliverB. is deliveringC. has deliveredD. delivered2. —I’m sorry, but we can’t find your purse in our restaurant.—________ I seem to lose something every time I eat out.A. How come?B. Come on!C. Bad luck!D. Pardon me?3. ________ Sunny Tours, I’d like to welcome you all to my city.A. On behalf ofB. On account ofC. In honor ofD. In hope of4. People work through problems in ways ________ they are unaware.A. of whichB. in whichC. on whichD. to which5. ________ unusual, this is not the first time the government has chosen to take control of large companies.A. SinceB. WhenC. BecauseD. While6. —May I smoke here?—Choose a seat in the smoking section, if you ________.A. shouldB. mustC. canD. may7. It is a wise father ________ knows his child.A. thatB. whichC. whatD. whom8. Knowing ________ you’re good at and doing even more of it creates excellence.A. whereB. whichC. whatD. that9. Don’t you think t he world would be an easier place to live in, if we all ________ the same language?A. speakB. had spokenC. spokeD. would speak10. His wife was busy cooking while he watched TV ________ comfortably in the sofa.A. seatB. to seatC. seatingD. seated11. When our ancestors were hunters and gatherers 10,000 years ago, they didn’t have time to wonder much about ________ but finding food.A. everythingB. anythingC. nothingD. something12. —Did you see ________ man in ________ black pass by just now?— No, sir. I was reading a newspaper.A. the; theB. the; aC. a; theD. a; /13. The government promises that relief materials ________ to the flood-hit areas in no time.A. will be rushedB. will rushC. have rushedD. have been rushed14. —Why did Mr. Green take his 7th grade students to the river yesterday afternoon?—________ the river.A. Cleaned upB. Cleaning upC. To clean upD. Clean up15. —Why are you going to the court?—________! I’ve bee n charged with parking my car in the wrong place.A. It’s ridiculousB. You don’t sayC. Tell me about itD. Leave me alone二、完形填空（共20小题；每小题1.5分，满分30分。

宁夏长庆高级中学2015—2016学年第一学期高三数学（文）第三次月考试卷（考试时间：120分钟，满分：150分）第I 卷一、选择题:本大题共12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．已知集合P={0，1，2}，Q={y |y =2x }，则P∩Q=A ．{0，1}B ．{1，2}C ．{0，1，2}D ．∅ 2. 物体的运动方程为S=6t 2+3t-2在t=3时的瞬时速度为A ．36B ． 12C ． 39D ． 333. 已知)0,2(π-∈x 且23cos =x ，则 =-)2cos(x πA ．21-B ．21C ．23-D ． 234. 若11tan ,tan()32a a b =+=,则tan =bA. 17B.16C.57D.565. 下列说法正确的是 ( )． A ． “”是“”的充分不必要条件B ．“”是“”的必要不充分条件．C ．命题“∈∃x R,使得012<++x x ”的否定是：“R x ∈∀,均有012<++x x ”．D ．命题“若βαβαsin sin ==，则，”的逆否命题为真命题． 6. 若a,b ∈R ，且a>b ，则下列不等式中恒成立的是A.22b a > B.b a )21()21(< C.0)lg(>-b a D.1>ba7. 将函数x y 2sin =的图象向左平移4π个单位, 再向上平移1个单位,所得图象的函数解析式是A. )42sin(1π++=x y D.x y 2sin 2=8.函数⎭⎪⎫||φ<π2的部分图象如图所示，则ω，φ的值分别是A ，－π6 C ．4，－π6 D ．4，π39. +(0)m m >个单位长度后，所得到的图象关于y 轴对称，则A ．3πD ．56π 10. 44-x e x 若有)()(b g a f =，则b 的取值范围为A ))22+ C ．()3,1 D ．[]3,1 11. ()f x 是A 、奇函数，且在（0,1）上是减函数 C 、偶函数，且在（0,1）上是减函数 12. 20<≤x 时,x x x f -=3)( ,则函数(f y =轴的交点的个数为 ( )A ．8 D ．95分．13. 若=4 14. )+A ，则A 的坐标为 ．15. =，其中a 为实数，()f x '为()f x 的导函数，若()1f '16. 下列命题中正确的是________．(写出所有正确命题的序号)①存在α满足sin α＋cos α＝2； ②y ＝cos(7π2－3x )是奇函数；③y ＝4sin(2x ＋5π4)的一个对称中心是(－9π8，0)； ④y ＝sin(2x －π4)的图象可由y ＝sin 2x 的图象向右平移π4个单位得到．三、解答题:（解答应写出文字说明．证明过程或演算步骤） 17. (本题满分12分)已知函数()f x =A ，（1）求A（2）若{}22|210B x x x k =-+-≥，且A 是B 的真子集，求正实数k 的取值范围。