高二学生英语自主学习练习答案

贵州省凯里市2019学年高二下学期自主学习效果检测英语试卷【含答案及解析】姓名___________ 班级____________ 分数__________一、阅读理解1. I left home to support my sister in her efforts to present a music festival.She lives on the other side of the world, and I went to visit her,not wanting to leave and feeling like I was leaving home against my will.However,I wanted to show her my support because she is my only sister.So I boarded the plane in mid-August,and hated the long flight.Iarrived,tired and hungry.I had left my husband of 2 years,alone,in our old New Orleans house.I was all set and ready to perform for my sister for the music festival on Sunday morning when I received a call from Chicago.The hurricane was predicted to hit our city,and many people had already evacuated ,but my husband chose to stay behind.He could not get a call to me on the other side of theworld,but he could call his cousin in Chicago.He gave his cousin a message for me,that he would be just fine,and not to worry.As the day wore on,I finally took the stage in front of hundreds of Europeans,and I realized,thanks to CNN,that New Orleans was under water.I performed,hoping that my husband would survive.And I performedperfectly.The audience stood and applauded.I left the stage and went straight to the TV.I saw the street sign near my home,of Humanity Street,but nothing below it,except water.In the days that followed,I found out that my house,my car,my clothes,my furniture,everything that I'd left behind was gone...but not my husband.He survived by riding on the rear bumper（后保险杆）of a VW bus,holding on to the overhead luggage rack,in the pouring rain,down the highway from NewOrleans,half-way to Baton Rouge.The rest of the journey was a long walk,but he survived.By the first week of September,I flew back to the Baton Rouge airport,andhugged my husband.Since then,our relationship has grown deeper;we have completely rebuilt our house,bought a new car,bought new furniture and new clothes and joined an inspirational,spirit-filled community.1. Why did the author leave home?A. To look after her sister.B. To attend a music festival.C. To watch a performance.D. To visit her husband's cousin.2. How did the author feel when she left home?A. Disappointed.B. Worried.C. Tired.D. Unwilling.3. What does the underlined word "evacuated" mean?A. GatheredB. StruggledC. EscapedD. Hid4. What might be the title for the passage?A. Lost it All,Gained Even MoreB. Once Gone,Never ReturnedC. Caught in the HurricaneD. Trapped in a Dilemma2. When the telephone rings late at night, most women guess it must be one of only four or five people calling. A sister? Maybe. An emergency? Possibly. A mother? Probably not at that time of night. Much more probably it is a close female friend calling to tell you that she has split up with her boyfriend again or perhaps simply that a good movie has just started on TV.At a time when families are spread far and wide and marriages often end in divorce, friendships are becoming more and more important. Erika, a 32-year-old lawyer, is strengthened by her ten-year friendship with her married friend Jane. “I was very sick one night, so I called Jane at about 3:00 a.m. to talk about it,” she says. “She was very supportive and even came over to take me to the doctor’s the next morning.”As American TV shows like Friends, which follows the lives of a very close group of young friends, have become more popular, many of us are beginning to see the value of such friendships. TV shows like this tell us that our romantic relationships may not last, but we need to keep in touch with our close friends if we want to survive.A TV show called Real Women is about the lives and relationships of five former school friends. In this show, family, husbands, and work are all less important than friendships. One of its actresses says the show reflects her own experience. “Friendship is about commitment. I don’t see some of my friends for ages but when we get together, it is as if time hasn’t passed.”This is true of Erika and Jane’s friendship. With Erika’s family 200 miles away，it is Jane who keeps a spare set of keys to Erika’s apartment andwaters her plants whenever she is away. “Having Jane around gives me acertain amount of freedom. It is not the kind of thing that you could ask anyone to do, but she knows I would do the same for her.” Erika f eels that because she no longer sees her family every day, she now enjoys a closer relationship with her best friend. Jane, who may move to a different city soon, is worried about leaving such a support system of friends. “My friends have more to do with m y life than my parents and, therefore, I don’t have to spend a lot of time explaining things to them. Friends are more up to date with what is happening.”1. According to the passage, a late-night phone call for most women is probably from ___________ .A. a friendB. a relativeC. a strangerD. a doctor2. TV shows like Friends tell us that ___________ .A. marriages with friends often end up in failureB. families and work are as important as friendsC. close friends help us face problems in lifeD. friendship fades as time goes by3. From the passage, we can learn that Erika and Jane ___________ .A. live far away from each otherB. have been friends for 32 yearsC. spend a lot of time explaining thingsD. trust and support each other in daily life4. Which of the statements will the author probably agree with?A. A near friend is more helpful than a faraway relative.B. Both marriage and friendship demand commitment.C. However far away we’re, parents worry about us.D. Long distance makes the hearts closer.3. Edmund Percival Hillary was one of the greatest explorers of the twentieth century. He was born in Auckland, New Zealand, in 1919. He discovered aninterest in mountain climbing while he was still in high school and began climbing New Zealand's Southern Alps.Like his father, Hillary earned his living as a beekeeper. However, he continued to climb mountains. His goal was to climb Mt. Everest, which is the highest mountain in the world. By the early 1950s, several expeditions（探险队）had attempted to reach the summit of Everest, but all had failed. Then, in 1953, Hillary and a Nepalese climber named Tenzing Norgay became the first two people to reach the top of the world.Hillary's spirit of exploration was not satisfied. He joined an expedition to Antarctica and reached the South Pole in 1958. He also made an expedition up the Ganges River to its source in the Himalayas. Sir Edmund Hillary was a brave adventurer. He went where no man or woman had gone before.Although Hillary was best known as the young man who climbed to the summit of Mt. Everest in the 1950s, he continued his journeys to far-off places into his senior years. For instance, in his mid-sixties Hillary flew to the North Pole with Neil Armstrong, the first man on the moon. Moreover, Hillary authored many books. However, his most lasting gift, perhaps, was the Sir EdmundHillary Himalayan Trust（信托基金）. It raised millions of dollars and contributed to schools, hospitals and many other public improvements in the Sherpa villages of Nepal. In January 2008, Sir Edmund Hillary died at the age of 88.Despite being a great adventurer and known for the treasure he left Sir Edmund Hillary always modestly referred to himself as a simple beekeeper from New Zealand.1. Hillary was interested in ________ when he was in high school.A. mountain-climbingB. bee-keepingC. money-raisingD. story-writing2. Hillary became well-known because ________.A. he reached both the South Pole and the North PoleB. he was the first to reach the top of Mt. EverestC. he lived in places where no humans had goneD. he made a lot of money as a beekeeper3. We can learn from the passage that Hillary is ________.A. outgoing and fearlessB. talented and honestC. determined and caringD. hardworking and careful4. "If popular culture has taught us anything, it is that someday mankind must face and destroy the growing harm caused by robots." Author Daniel Wilson's description of How to Survive a Robot Uprising seems like it is straight outof a robot disaster movie. "The problem with cleverly-designed robots is that we become dependent on them," says Wilson.The classic movie Westworld describes an amusement park where, after a safety error, the robots spend a killing period of time. Yet in reality, statistics show that as technology improves there is a trend towards increased safety. Similarly, public transport systems using computers and machines arebelieved to be more reliable than those in human control, and a robot-assisted operation is more precise and results in fewer medical problems.But where does the idea of robots being cruel and harmful come from? "Robots were pop culture figures before they existed," says Wilson. "They were frightening creatures in novels. When robots really started existing, they already had this image(形象) set up not based on reality. That's exactly what happened—a movie monster became real."Recent reports talked of a robot "attack" on a worker in Sweden. Even ifthese references to an attack rather than an error are meant in joke, thisonly makes the problem worse. "We're so interested in the robot-attackstoryline that it can influence the way real robot-safety problems are discussed," says one journalist. But with robots becoming increasingly advanced, is it going to come a time when an error could become an unkind and cruel attack?"Robots are just a bunch of metal," says one engineer. "If you are scared,then you are scared of the people building them." So what do engineers thinkwe should be afraid of? Nanotechnology is the science which involvesdeveloping and making extremely small but very powerful machines. Some engineers suggest that with these new developments come "severe dangers" ifthey are used inappropriately. Its theory goes that "the small size and rapid potential of nano-built weaponry（武器）will make it difficult to control and hard to keep out of the hands of terrorists. "And this is a view shared by some artificial intelligence experts. "With robots...if it makes an error, you can unplug it and shut it down. But if you have lots of nano-built weapons, which are extremely small, there is no way you can do the same thing."1. In the first paragraph, Daniel Wilson ________.A. confirms the existence of robotsB. introduces the development of robotsC. states that robots are potentially dangerousD. suggests that we should be dependent on robots2. People have come to think of robots as something bad because ________.A. designers of the first robots spread this ideaB. reality shows they are the same as in the moviesC. movie audience continue to give this impressionD. they were originally described this way in novels3. The author believes that the report of the robot attack in Sweden ________.A. is intended as a jokeB. serves as a serious warningC. presents the technical problemD. expresses sympathy for the worker4. What are experts afraid of when considering nanotechnology?A. Robots could use it inappropriately.B. It could make robots harder to control.C. It could be more dangerous than robots.D. There'll be more terrorist attacks because of it.二、七选五5. Coming from the Bronx, Jennifer Lopez knew from an early age it would be tough to achieve her dream. In an interview in 2002 she remembered, "I hadsuch a will in me. I had such a passion in me. I could overcome my situation. But a lot of people will get beaten down and be held back by that. "Lopez was not beaten down by her situation. 1.Lopez's big breakthrough came in 1996 when she played the main role in the movie Selena . 2. Since then, she has had starring roles in severalsuccessful movies, including Out of Sight with George Clooney.3. In 1999,she released（发行）her first album, On the 6 . Two songs fromthe album, "If You Had My Love" and "Waiting for Tonight," both reached number one on the Billboard music charts. The album sold more than three million copies around the world.After starring in The Cell (2000), Lopez released her second album, J.Lo ,in 2001. The album went straight to the top of the Billboard chart. 4. It became the number one movie at the box office. This meant that Lopez was the first entertainer to ever have a number one album and a number one movie atthe same time!5. 2001 was also the year Lopez started her own line of clothing, called J.Lo, and she married Cris Judd, a dancer who performed in her videos. The marriage did not last long, and Lopez and Judd divorced nine months later.In 2002, Lopez starred in the films Enough and Maid in Manhattan , which became Lopez's biggest movie yet, earning $19 million.A. Lopez quitted her career in acting.B. Then, Lopez turned her attention toward music.C. She began to dream of her success in entertainment.D. But her entertainment career was not the only thing Lopez focused on that year.E. For this movie, Lopez got paid $1 million and became the highest paidLatin actress of all time.F. At the same time that her album came out, Lopez's new movie, The Wedding Planner , opened in theaters.G. She worked hard dancing, singing, and acting in theaters and her hard work paid off with small roles in television and films.三、完形填空6. Last night was the last game for my eight-year-old son's soccer team. It was the _______ quarter.The score was two to _______ , my son's team in the lead. Parents encircled the field, offering _______ .With less than ten seconds _______ , the ball rolled in front of my son's_______ , one Mikey O'Donnel. With shouts of " _______ it!" echoing across the field, Mikey stepped back and _______ it everything he had. All round me the crowd _______ . O'Donnel had scored!Then there was _______ .Mikey had scored all right, but in the wrong goal, ending the game in ________ .For a moment there was total hush（寂静）. You see, Mikey has Down's syndrome (a kind of mental disease) and ________ himthere is no such thing as a wrong goal. All goals were ________ by a joyoushug from Mikey. He had even been known to hug the ________ players when they scored.The silence was ________ broken when Mikey, his face filled with joy, grabbed my son, hugged him and ________ ,"I scored! Everybody won! Everybody won!" For a moment I held my breath, not sure how my son would ________ . I need not have ________ . I watched, through tears, ________ my son threw up his handin the classic high-five salute and started chanting, "Way to go Mikey! Way to go Mikey!"Within moments both teams ________ Mikey, joining in the chant and congratulated him on his goal.Later that night, when my daughter asked who had won, I ________ as I replied, "Everybody won."1. A. first B. mid C. next D. final2. A. zero B. one C. two D. four3. A. encouragement B. entertainment C. congratulations D. awards4. A. leaving B. moving C. remaining D. passing5. A. coach B. teammate C. leader D. assistant6. A. Kick B. Drop C. Throw D. Hold7. A. sent B. handed C. gave D. brought8. A. erupted B. froze C. laughed D. wandered9. A. darkness B. silence C. excitement D. noise10. A. line B. round C. hurry D. tie11. A. for B. of C. upon D. inside12. A. accepted B. celebrated C. received D. expected13. A. disabled B. gifted C. supporting D. opposing14. A. eventually B. slightly C. permanently D. shortly15. A. stated B. whispered C. yelled D. explained16. A. continue B. answer C. react D. defend17. A. wondered B. worried C. suffered D. doubted18. A. after B. until C. before D. as19. A. watched B. seized C. surrounded D. followed20. A. signed B. sobbed C. counted D. smiled四、短文填空7. The first 1. (obviously) reason is the money.I am not one of those rich 2. (kid)whose parents could give them cars 3. birthday presents.My parents 4. (work) all their lives and saved every penny to pay my tuition and living expenses.Although they would be willing to give me some pocket money if I 5. (ask),I prefer to earn it 6. (me).I feel good that I can in a way lighten the burden of my parents.The second reason is the experience my part-time job provides.Sooner orlater,I'll have to enter the job market and sell myself.And if I am to sell myself for a good price,experience will make a difference. 7. working,I get to know people,employers as 8. (good) as workers.I learn how to deal with the bosses and how to get along 9. my fellow workers.All this experience 10. (gain) from my part-time job will be valuable to my future.五、短文改错8. 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下短文。

新高二学生暑假自主学习练习答案Keys to 练习一单选：1-5 ACACD 6-10 ACCDC 11-15 ADCBA16-20 ADDBC完形：1- 5 BDCAA6-10 DBBCC 11-15 DBDAC 16-20 ADBCB阅读：1-4 ADCB 5-8 BDDA任务型阅读：1. being/becoming 2.enjoying 3.protect/keep 4.washing 5.worried6.influence/effect7.too8. value/importance9.Overcoming 10.activities 词汇检测：1. personally 2. hesitate 3. stressed 4. relief 5. confused/considering同义转换：1. height 2. frozen 3. understand 4. whispered 5. made句子翻译：1.By the sense of responsibility, we mean the realization of one’s task, duty or obligation.2.Students should recognize their duty and should be blamed if they fail to carry out their duty.3. Duty calls for the students to study hard，which makes me pick up my courage, face the difficulties and accept the challenge.4.Although the sense of responsibility brings me pressure and worry, yet I should be thankful for it because it encourages me to go on.5.To have a good position in society in the future, I must be responsible for everything I do.动词填空：1. suffering 2. informed 3. (should) broadcast 4. changing 5. will have saved6. was caught7. preferred8. limited9. starving 10. was bent短文填空：1. hungry 2. However 3. Instead 4. owe 5. accept6. left7. up8. where9. in 10. name11. through 12. Dressed 13. recognized 14. determined/decideded 15. attention16. won 17. wrote 18. afraid 19. off 20. spreadKeys to 练习二单选：1-5 BABDA6-10 CCADB 11-15 CADCB 16-20 BADAA完形：1-5 CBDAB 6-10 CDDAB 11-15 ABCDC 16-20 CABCD阅读：1-4 BADD 5-8 DAAB任务型阅读：1. Purpose/Aim/Goal 2. steps 3. competition 4. replaced 5. managed6.twice/double7. allowing8. look9. similar 10. age/grow词汇检测：1.depends 2.opposite 3. embarrassed 4. contributes 5. convenient同义转换：1. interrupt 2. consisting 3. influence/affect 4. regret 5. realized句子翻译：1. The English language was originally formed on the basis of the languages of small tribes inNorthern Europe.2. The success of the programme has contributed greatly to the current interest in pop music.3. I reached a point in my career where I had to decide which way to go at that time.4. Traditional Chinese sports are similar to Western sports in that both are meant to improve people’s health.5. Despite the fact that French did not replace English as the first language, it still had an impact on the English language.动词填空：1. makes sense 2. be related to 3. to have covered 4. added to 5. to be/being stared at6. compared to7. can’t help8. has made great achievements9. afford 10. reached out短文填空：1. weak 2. However 3. tears 4. as 5. dark/darkness6. about7. since8. growing9. control 10. to11. fault 12. felt 13. Where 14. grow 15. Why16. preferred/chose 17. By 18. though/although 19. courage 20. understoodKeys to 练习三单选：1--5ADACA6--10BBCAC 11--15BAACC 16--20ACBDB完型: 1-5ACBDA6-10 DBACA11-15 CDBCD 16-20 ABCDB阅读:1—4 CDCD 5-8 CDAB任务阅读: 1. Tips 2. place 3. Without/ No 4. Special 5. set6. positive7. Expressed8. children9. Help 10. Celebrate词汇检测:1. burying 2. declared 3. cultural 4. gradually 5.destroyed同义转换:1. interests 2. Similarly 3. existed 4. remained 5. performed/conducted/done翻译句子：1. Confucius greatly influenced / had a great influence upon the development of China’s culture and education.2. The desert was once a green land with huge trees, but they were cut down and that resulted in the city being buried by sand.3. People are wondering who is going to take over the company when the president of the board retires.4. The desert was once a green land with enormous trees, but even that didn’t prevent the city from being buried by sand.5. Not only was Rome a city and a republic, but it was also to become the capital of one of the largest empires in history.动词填空：1. be informed of 2. depends on 3. are banned 4. looking up 5. differs from6. dreamed/dreamt of7. care about8. taken control of9. was adopted10. taken into consideration短文填空：1. dying/eager 2. tired 3. heavy 4. away 5. when6. held7. another8. felt9. so 10. handed11. forehead 12. what 13. across 14. happier 15. lucky16. as 17. meant 18. offer 19. kindness 20. chanceKeys to 练习四单选：1---5 DAADD 6—10 BCCAA11—15 CAACC 16—20 AACCA完型: 1--5 BACAD 6--10 DCACC 11--15 DCDAB 16--20 ABBAD阅读: 1—4 BADA5-8 BCDD任务型阅读: 1. process 2. presentation 3. judge 4. consideration/account 5. compare 6. detail 7. familiar 8. information 9. Dress 10. confident词汇检测: 1. available 2. persuasive 3. intended 4. tricked 5. promote同义转换: 1. appeals 2. fall 3. determined 4. recommended 5. beneficial翻译句子：1. A commercial advertisement is one that someone has paid for to promote a product or service.2. This disease is quite common to the old but ninety percent of the patients can be cured of thedisease.3. His father meant him to be an engineer but he was never meant for an engineer.4. There are lots of different ways to get your message across when you are putting together an ad campaign.5. Y ou may want to ask yourself what parts of this product your target buyers would care about or be concerned with.动词填空：1. get it across 2. deals with 3. fell for 4. is; used to 5. to put; together6. was satisfied with7. trick; into8. was aware of9. appeals to 10. committing suicide短文填空: mercial 2. promote 3. service 4. intended/meant 5. welfare6. lies7. customers8. serve9. lead/live 10.satisfy/meetKeys to 练习五单项选择：1-5 BDAAB 6-10 DBDAC 11-15 CCBDC 16-20 DCBDA完形填空：1-5 BDACD 6-10 AADAB 11-15 BDCCB 16-20 CACAB阅读理解：1-4 DACB 5-8 CBCA任务型阅读：1. While/Though/Although 2. weight 3. forced 4.exercise 5. lose6. tired7. provided8. suffer9. containing 10. reducing/losing词汇检测：1. competing 2. absence 3. Involved 4. ensure 5. balanced同义转换：1. attempted 2. significance/importance 3. briefly 4. remove 5. considered/recognized/ regarded句子翻译：1. No matter what difficulties we meet with, we will try our best to overcome them.2. Michael Jordan is recognized as one of the most famous NBA superstars in the USA.3. Their dream was that the Olympic Games would make it possible for countries and people to live side by side in peace.4. His suggestions played a leading role in the rapid development of the company.5. These are some of the Olympic athletes who have brought joy to people across the world withtheir attempts to push the boundaries of human achievements.动词填空：1. results in 2. been aware of 3.was invited 4. glanced at5. decorated with6. poured out7. rose up against8.broke down短文填空：1. gather 2. August 3. where 4. regions 5. power6. achieved7. international8. including9. impressed 10. promise。

2022级高二英语自主学习材料文理通用第17周命题人：冯祚新任教班级：25班审核人：隽丕东任教班级： 7、8班姓名：班级：第一部分：阅读理解（共2节，满分70分）第一节(共30小题;每小题2分，满分60分)AProfessor Martin’s report says that children who attend a number of different schools, because their parents have to move around the country, probably make slow progress in their studies. There are also signs, says Professor Martin, that an unusually large number of such children are mentally affected.The Profes sor says, “It’s true, my personal feeling is that children should stay in one school. However, our findings are based on research and not on any personal feelings that I or my assistants may have on the subject.”Captain Thomas James, an Army lecturer for the past 20 years and himself a father of 2 children, said, “I’ve never heard such rubbish. Taking me for example, no harm is done to the education of my children who change school regularly---if they keep to the same system. In my experience----and I’ve known quite a few of them---- Army children are as well-adjusted(调整) as any others, if not more so. What the professor doesn’t appear to notice is the fact that in such situations children will adapt much better than grown-ups.”When this was put to Professor Martin, he said that at no time had his team suggested that all such children were mentally affected in some way, but simply that in their experience there was a clear tendency (倾向). “Our finding shows that while the very bright child can deal with regular change without harming his or her general progress in studies, the majority of children suffer from constantly having to enter a new learning situation.”1. Professor Martin’s report suggests that _______.A. it may not be good for children to change schools oftenB. parents should not move oftenC. more and more children are mentally affectedD. children will make rapid progress if they stay in one school.2. According to the passage, Professor Martin’s personal feeling____ .A. is the opposite of what his report has shownB. is in a way supported by his researchC. has played a big part in his researchD. is based on his own experience as a child3. From the passage, we can conclude that Captain Thomas’ children____.A. have been affected by changing schoolsB. have not been affected by changing schoolsC. like every army school they have been inD. are the brightest among the children who often change school4. According to Professor Martin, ____ suffer from changing schools regularly.A. non-army childrenB. bright childrenC. the majority of childrenD. few children5. Captain Thomas believes _____A. army children are generally better—adjusted than any othersB. army children are usually less experienced than any othersC. children can adapt more easily and quickly than grown-upsD. children can adapt as easily and quickly as grown-upsBDuring the 20th century there has been a great change in the lives of women. A woman marrying at the end of the 19th century probably have been in her middle 20’s and would be likely to have seven or eight children. By the time the youngest was 15, the mot her would have been in her early 50’s and would expect to live a further 20 years, during which chance and health made it hard for her to get paid work. Today women marry younger and have fewer children.Usually a woman’s youngest child will be 15 when sh e is 45 and she can be expected to live another 35years and is likely to get paid work until 60.This important change in women’s life has only recently begun to have its full effect on women’s economic position. Even a few years ago most girls left school and took a fulltime job. However, when they married they usually left work at once and never returned to it. Today the school-leaving age is 16, many girls stay at school after that age, and though women marry younger, more married women stay at work at least until shortly before their first child is born. Very many more return to work later. Such changes have led to a new relationship in marriage, with the husband accepting a greater share of the duties of family life.6. We learn from this passage that in the 19th century_____ .A. there were more children in the world than there are todayB. women spent a greater part of their lives raising children than they do todayC. there were more women in poor health than there are todayD. women married younger than they do today7. One reason why a married woman of today may take a job is that ____.A. she is usually younger when her children are old enough to look after themselvesB. she is obliged to help her husband support the familyC. she feels lonely at home when her children grow upD. she hopes to change the world a bit by doing up8. Many girls are now likely to ____.A. give up their jobs after they get marriedB. leave school as soon as they canC. marry early so that they can get better jobsD. continue working until they are going to have a baby9. According to the passage, it is now quite usual for women to ____ .A. stay at home after leaving schoolB. find jobs when they reach the age of 16C. start working again later in lifeD. marry and have children while still at school10. Now a husband probably ____ .A. plays a greater part in looking after the childrenB. does almost all of the houseworkC. feels unhappy about his wife’s going out to workD. takes a part-time job so as to help at homeCIn 1896, Einstein went to Zurich to study physics. There he met a girl from Hungary. They studied in the same class and the same interest in physics brought them together and they became good friends. Before long they fell in love. In 1903 when Einstein was 24, he married Marits, who was 4 years older than he.After their marriage, Einstein devoted himself to the research of the great theory. To give her husband more help, Marits gave up her own work, and became a good wife and assistant. She tried her best to encourage him whenever possible. She was sure that her husband would succeed. They often discussed the theory while walking outside or sitting together in the room. They even did that in their letters when one of them was away from their home.In1914, Einstein moved to Berlin and settled down there. At that time his theory proved to be correct and he had become famous all over the world. But it was not long before the First Would War broke out. Marits as well as her two sons, who was on holiday in Switzerland, couldn’t come back to Berlin any more. The war not only stopped Einstein’s work but also broke up the warm, happy family. In 1919, Einstein and Marits had to get divorced(离婚).11. Form this passage we can see that Marits was born in _____.A.1896B. 1879C. 1883D.187512. We can learn from the passage that Marits ______.A. greatly helped Einstein with his research workB. supported Einstein but helped him littleC. was also a great scientistD. was the real discoverer of the theory13. The last paragraph mainly tells us _____.A. why Einstein and Marits got divorcedB. why Einstein moved to BerlinC. how Einstein became famous all over the worldD. when the First World War broke out14. Why did Einstein and Marits get divorced?A. Because Marits didn’t love Einstein after the war broke out.B. Because the war stopped Marits from coming back to Berlin.C. Because Einstein only cared about his research.D. Because Einstein was famous all over the world.15. The writer wanted to tell us that _____.A. Marits should be respected as greatly as her husbandB. Einstein suffered a great deal in his lifeC. The bitter (苦难的) suffering was the mother of successD. We should remember Marits when talking about Einstein’ theoryDAfter giving a talk at a high school, I was asked to pay a visit to a special student. An illness had kept the boy home, but he had expressed an interest in meeting me, and it would mean a great deal to him. I agreed.During the nine-mile drive to his home, I found out something about Matthew. He had muscular dystrophy（肌肉萎缩症）. When he was born, the doctor told his parents that he would not live to see five, and then they were told he would not make it to ten. Now he was thirteen. He wanted to meet me because I was a gold-medal power lifter, and I knew about overcoming obstacles (障碍) and going for my dreams.I spent over an hour talking to Matthew. Never once did he complain or ask, “Why me?” He spoke about winning and succeeding and going for his dreams. Obviously, he knew what he was talking about. He didn’t mention that his classmates had made fun of him because he was different. He just talked about his hopes for the future, and how one day he wanted to lift weight with me.When we finished talking, I went to my briefcase and pulled out the first gold medal I won and put it around his neck. I told him he was more of a winner and knew more about success and overcoming obstacles than I ever would. He looked at it for a moment, then took it off and handed it back to me. He said, “You are a champion. You earned that medal. Someday when I get to the Olympics and win my own medal, I will show it to you.”Last summer I received a letter from Matthew’s parents telling me that Matthew had passed away. They wanted me to have a letter he had written to me a few days before:Dear Rick,My mom said I should send you a thank-you letter for the picture you sent me. I also want to let you know that th e doctors tell me that I don’t have long to live anymore. But I still smile as much as I can. I told you someday I was going to the Olympics and win a gold medal. But I know now I will never get to do that. But I know I’m a champion, and God knows that too. When I get to Heaven, God will give me my medal and when you get there, I will show it to you. Thank you for loving me.Your friend,Mathew16. The boy wanted to meet the author because ______.A. he was interested in what the author was doingB. he wanted to get a gold medal himselfC. he admired the author very muchD. he wanted the author to know him too17. The underlined part in the third paragraph probably means “______”.A. Why do you come to see me?B. Why do I have to stay at home?C. Why does the disease fall on me?D. Why not give a gold medal to me?18. We can infer from the passage that ______.A. Matthew was a determined boy and considered himself as normalB. Rick used to have the same disease and later became a power lifterC. Matthew was to become a champion before he diedD. After meeting Matthew, Rick regarded him as normal19. The boy refused the author’s medal because ______.A. he wanted the picture insteadB. he would not be pitied by othersC. he did not know he would die soonD. he himself could earn one in the future20. The author wrote the passage with the purpose of ______.A. describing his unusual friendship with a disabled childB. showing his admiration towards the disabled childC. telling an experience of meeting a disabled childD. expressing his pity to all the disabled childrenENo one knows why we sleep, but it's certain that we need to. People who are prevented from sleeping begin to suffer obvious effects after a few days--they think less clearly, and they fall asleep during the working hours; some may have hallucinations(幻觉).There are no rules about sleep. Generally speaking, grown-ups sleep about 7 and a half hours each night and probably more than 60 percent get between seven and eight hours. But perhaps eight per cent are quite happy with 5 hours or less, and 4 per cent or so find that they want ten hours or more. If you feel all right, you're probably getting enough sleep. The important thing is not to worry how much other people get.Their needs may be different. Exercise doesn't seem to increase the need for sleep--office workers, for example, sleep for about as long as people doing physically active work.Children sleep more than grown-ups--perhaps 14 to 18 hours soon after birth, going down to grown-up levels by early teen-age. Sleep patterns also tend(倾向) to be different in the elderly, who may sleepless at night than they did when younger, find sleep getting more broken, and often make it a rule to sleep during the daytime.21. According to the passage, some people are unable to think clearly because ________.A. they have hallucinationsB. they feel sleepy during the working hoursC. they don't have enough sleepD. they are certain to be kept from going to bed22. Which of the following is true?A. All grown-ups must have at least eight-hour sleep.B. Most of grown-ups sleep for seven or eight hours.C. Quite a few people need only 5 hours or less for them to sleep.D. No grown-ups sleep more than ten hours.23. Whether you have got enough sleep is judged by ________.A. how many hours you have sleptB. how many hours you need to sleepC. whether you do exercise and physical workD. whether you feel fresh and energetic24. According to the passage, a boy of 14 years old sleeps ________.A. as long hours as a grown-upB. much longer hours than a grown-upC. for 14 hours each nightD. for less than 8 hours per night25. Who finds they sleep less during the night and must take a nap during the day?A. ChildrenB. Grown-upsC. Young peopleD. Old peopleFBill Javis took over our village news-agency at a time of life when most of us only want to relax. He just thought he would like something but not too much to do, and the news-agency was ready-made. The business produced little enough for him, but Bill was a man who only wanted the simplicity and order and regularity of the job. He had been a long-serving sailor, and all his life had done everything by the clock.Every day he opened his shop at six a. m. to catch the early trade; the papers arrived on his door-step before that. Many of Bill’s customers were city workers, and the shop was convenient for the station. Business was tailing off by 10 o’clock, so at eleven sharp Bill closed for lunch. It was hard luck on anybody who wanted a paper or magazine in the afternoon, for most likely Bill would be down on the river bank, fishing, and his nearest competitor was five kilometers away. Sometime in the afternoon, the evening paper landed on the doormat, and at 4 o’clock Bill reopened. The evening rush lasted t ill seven, and it was worthwhile.He lived in a flat above the shop, alone. Except in the very bad weather, you always knew where to find him in the afternoon, as I have said. Once, on a sunny afternoon, I walked home along the river bank from a shopping trip to the village. By my watch it was three minutes past four, so I was astonished to see Bill sitting there on his little chair with a line in the water. He had had no luck, I could see, but he was making no effort to move.“What’s wrong, Bill?” I call ed out from the path.For answer, he put a hand in his jacket and took out a big, golden object. For a moment I had no idea what it could be, and then it suddenly went off with a noise like a fire engine. Stopping the bell, Bill held the thing up and call ed back, “Ten to four, you see, and this is dead right.”I had never known anyone carrying a brass alarm clock round with him before.26. Bill Javis became a news-agent when ______.A. he needed the moneyB. he decided to take things easyC. he was quite an old manD. he gave up clock-repairing27. Bill opened the shop so early in the day because ______.A. he liked to do as much as possible before he went to workB. the shop had to be open when the morning papers cameC. he was never sure of the timeD. it was then that he did a lot of business28. You might say “Hard luck” to someone who ______.A. has just heard some very good newsB. is less fortunate than he or she ought to beC. puts great effort into whatever he or she triesD. fails through his or her own fault entirely29. On that sunny afternoon, the writer was surprised when he saw Bill because ______.A. he thought it was late for Bill to be still fishingB. he thought Bill was ill, since he was not moving at allC. Bill had not caught anything, and that seemed strangeD. Bill stayed in his flat30. From the information given in the passage, who or what do you think was wrong?A. The bell was; it must have gone off at the wrong time.B. Bill was; he had dropped off to sleep.C. The writer’s watch was fast.D. Bill’s clock was wrong; it was very old.其次节(共5小题;每小题2分，满分10分)依据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

参考答案听力理解：1. A2. A3. B4. C5.C6. B7. C8. B9. C 10. A 11. B 12.A 13.A 14.B 15.B 16.C 17.B 18.A 19.A 20.C阅读理解：21. B 22. D 23. C 24. A 25.A 26.C 27.D 28.A 29.A 30.B31. C 32.C 33.D 34.B 35.C 36.G 37. E 38.B 39.F 40.D完形填空：41. D 42. B 43. A 44. C 45. B 46. A 47. C 48. A 49. B 50. D51. A 52. B 53. D 54. A 55. C 56. C 57. B 58. D 59. C 60. D语法填空：61. obvious 62. kids 63. as 64. have worked 65. asked66. myself 67. While 68. well 69. with 70. gained短文改错：I am one of the few man （改为men）who work as a nursery school teacher in London. Most of my kids come from families on (改为with) problems. It’s surprised (改为surprising) how very young children understand or are aware of things that go wrong in （改为at）home. This, of course, affects them and sometimes make （改为makes）makes them very difficult to deal （加with）. At such times you have to be very patient with them.I don’t think that women are natural （改为naturally）better with children than men are. Anybody who is preparing （改为prepared）to understand and help children, and who has the right qualities can look after them and teach them. The qualities are there, in all (改为both) men and women, but most men don’t use them. I think my group of children rather like being with a man for the （改为a ）change, especially since they don’t see their fathers very much. So I don’t feel I’m doing a ‘woman’ s job’; in fact, as a man, I feel I can bring something extra to the job.写作：Dear Jim,I’m writing to tell you a piece of good news.Our school will run a Peking Opera camp for foreign students this winter vacation. It will start from February 5th and last ten days. Some famous artists will offer basic courses in this national treasure, including singing, dialogues, movements as well as facial make-up. They want to present the idea that Peking Opera is not just an art, but a symbol of traditional Chinese culture.I know you’re interested in Peking Opera, so I hope you’ll join the camp and have a good time there.Yours,Li Hua听力原文第一节：听下面5 段对话。

高二下学期英语自主练习（9）一．单项选择（共15题，每小题1分，满分15分）1.—Can he take charge of the computer company?—I’m afraid it’s his ability.A. beyondB. withinC. ofD. to2. —What do you think of Tom Williams?—He is one of kind of persons who can give you hand whenever you’re in trouble.A. the; theB. a; aC. a; theD. the; a3. We will only discuss such problems something to do with our own interests.A. that haveB. as haveC. which hasD. as has4. My camera can be to take pictures in cloudy or sunny conditions.A. adaptedB. adjustedC. fitD. revised5. I planned to tell her a lie, but my mother so easily.A. went through itB. passed it throughC. saw it throughD. looked through it6. Every one of us in the hospital hoped that he after a few days’ treatment.A. picked upB. made upC. took upD. looked up7. If only he quietly as the doctor instructed, he wouldn’t suffer so much now.A. liesB. layC. should lieD. had lain8. —We didn’t find the Blacks the lecture.—No one had told them about a lecture the following day.A. to attend; there to beB. attending; there beingC. attended; there beD. attend; there was9. I don’t think Maria will be disappoint ed at the news, but I will see her she is.A. as ifB. so thatC. in caseD. even though10. —How did you find your visit to the Olympic Park, Tom?—.A. By taking a No 3 bus.B. I want there aloneC. Oh, wonderful indeedD. A boy showed me the way11. —I won’t be home until mid-night.— Well, ______, I won’t cook dinner.A. if notB. as it isC. that is to sayD. in that case12. — Shall I ______some music?—You’d better not. I’m ______ on my lessons.A. put on…be ntB. put up…bendingC. put in…bentD. put out…bending13. It was for this reason ______the new plan______ helping the people who are suffering from hunger.A. that; aimed toB. why; was aiming atC. that; was aimed atD. why; aiming to14. The G20 summit（峰会）in London could be remembered as the turning point when the______between the developing and developed world ends for ever.A. tendencyB. intentionC. appreciationD. distinction15. —Your flight is boarding now. We’ll have to part.—Don’t feel blue. ______.A. A still tongue makes a wise headB. A single flower does not make a springC. All good things come to an endD. All that glitters is not gold二．完形填空（共20小题，每小题1分，满分20分）Nearly thirty years ago, I went rock climbing for the first time with a group in New Mexico. It sounded exciting and 16 ! Anyone who has ever climbed knows that you can easily 17 where there is no place to go, or so. It seems you’re stuck. But 18 is not an option. You cannot just stand there and feel 19 for yourself. You cannot go back down, so you are 20 to become solution minded.I held on for dear life that day, on my first climb, 21 about three quarters of the way to the top. It seemed that there was no place to go, and 22 to put my hands or feet so that I could 23 upward. But after a few minutes had passed I realized that I had to do 24 . I began to look again for a(n) 25 . I then noticed a 26 sticking out, which I might be able to grab with my hands and 27 myself up to where I could have a small foothold. I called to the instructor at the top and asked him if that rock would hold my 28 if I pulled myself up. I can 29 remember his answer, “I don’t know. Why don’t you try it and see?”In life we many times feel “stuck”. We wonder h ow we got into the 30 that we are presently in. It is in those times that we need to be careful about how we define(定义)it. Have we failed, 31 is it just a setback?Setbacks, adversity(逆境), or being stuck is never an indication that you are a 32 unless you decide that those things define your life as a failure. For people looking for a(n) 33 to be a failure, there are always plenty to choose from. But if you want your life to be successful, setbacks, adversity and being stuck are 34 stepping-stones to your success. Success minded people 35 those kinds of things for what they really are. They know that for them, they are only temporary.16. A. amusing B. challenging C. boring D. surprising17. A. put away B. take up C. end up D. lead to18. A. searching B. regretting C. refusing D. quitting19. A. sorry B. free C. amazed D. surprised20. A. unlikely B. forced C. asked D. bound21. A. shocked B. stuck C. suffered D. struck22. A. nowhere B. somewhere C. anywhere D. wherever23. A. continue B. improve C. promote D. enjoy24. A. everything B. something C. anything D. nothing25. A. attention B. appreciation C. solution D. expectation26. A. track B. sign C. tree D. rock27. A. turn B. push C. pull D. build28. A. quantity B. feet C. weight D. burden29. A. still B. never C. hardly D. ever30. A. destination B. situation C. location D. occasion31. A. however B. otherwise C. or D. yet32. A. learner B. failure C. thinker D. winner33. A. signal B. excuse C. comment D. imagine34. A. easily B. hardly C. simply D. nearly35. A. develop B. deserve C. promise D. accept三．阅读理解（共15小题；每小题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，并在答题卡上将该项涂黑。

复数与平面向量班级________姓名_________学号________一、选择题：本大题共14小题，每小题5分，共70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.设i 是虚数单位，则复数i 3－2i等于( )A.－IB.－3iC.iD.3i 解析 i 3－2i ＝－i －2ii2＝－i ＋2i ＝i.故选C.2.已知a ∈R ，i 是虚数单位.若z ＝a ＋3i ，z ·z ＝4，则a 等于( ) A.1或－1 B.7或－7 C.－ 3 D. 3 解析 ∵z ·z ＝4，∴|z |2＝4，即|z |＝2.∵z ＝a ＋3i ，∴|z |＝a 2＋3＝2，∴a ＝±1.故选A.3.设i 是虚数单位，则复数2i1－i 在复平面内所对应的点位于( )A.第一象限B.第二象限C.第三象限D.第四象限 解析2i 1－i ＝2i (1＋i )(1－i )(1＋i )＝2i (i ＋1)2＝－1＋i ，由复数的几何意义知，－1＋i 在复平面内的对应点为(－1，1)，该点位于第二象限，故选B. 4.设有下面四个命题：p 1：若复数z 满足1z ∈R ，则z ∈R ；p 2：若复数z 满足z 2∈R ，则z ∈R ；p 3：若复数z 1，z 2满足z 1z 2∈R ，则z 1＝z 2；p 4：若复数z ∈R ，则z ∈R . 其中的真命题为( )A.p 1，p 3B.p 1，p 4C.p 2，p 3D.p 2，p 4解析 设z ＝a ＋b i(a ，b ∈R )，z 1＝a 1＋b 1i(a 1，b 1∈R )，z 2＝a 2＋b 2i(a 2，b 2∈R ).对于p 1，若1z ∈R ，即1a ＋b i ＝a －b i a 2＋b 2∈R ，则b ＝0，即z ＝a ＋b i ＝a ∈R ，所以p 1为真命题；对于p 2，若z 2∈R ，即(a ＋b i)2＝a 2＋2ab i －b 2∈R ，则ab ＝0.当a ＝0，b ≠0时，z ＝a ＋b i ＝b i ∉R ，所以p 2为假命题；对于p 3，若z 1z 2∈R ，即(a 1＋b 1i)(a 2＋b 2i)＝(a 1a 2－b 1b 2)＋(a 1b 2＋a 2b 1)i ∈R ，则a 1b 2＋a 2b 1＝0.而z 1＝z 2，即a 1＋b 1i ＝a 2－b 2i ⇔a 1＝a 2，b 1＝－b 2.因为a 1b 2＋a 2b 1＝0⇏a 1＝a 2，b 1＝－b 2，所以p 3为假命题；对于p 4，若z ∈R ，即a ＋b i ∈R ，则b ＝0⇒z ＝a －b i ＝a ∈R ，所以p 4为真命题.故选B. 5.在△ABC 中，点D 是边BC 上任意一点，M 是线段AD 的中点，若存在实数λ和μ，使得BM →＝λAB →＋μAC →，则λ＋μ等于( )A.12B.－12 C.2 D.－2 解析 因为点D 在边BC 上，所以存在t ∈R ， 使得BD →＝tBC →＝t (AC →－AB →).因为M 是线段AD 的中点，所以BM →＝12(BA →＋BD →)＝12(－AB →＋tAC →－tAB →)＝－12(t ＋1)AB →＋12tAC →. 又BM →＝λAB →＋μAC →，所以λ＝－12(t ＋1)，μ＝12t ，所以λ＋μ＝－12.故选B.6.“复数z ＝3＋a ii 在复平面内对应的点在第三象限”是“a ≥0”的( )A.充分不必要条件B.必要不充分条件C.充要条件D.既不充分也不必要条件解析 由题意得z ＝a －3i ，若z 在复平面内对应的点在第三象限，则a <0，故选D.7.已知i 是虚数单位，a ，b ∈R ，则“a ＝b ＝1”是“(a ＋b i)2＝2i ”的( ) A.充分不必要条件 B.必要不充分条件 C.充要条件D.既不充分也不必要条件 解析 当a ＝b ＝1时，(a ＋b i)2＝(1＋i)2＝2i ，反过来(a ＋b i)2＝a 2－b 2＋2ab i ＝2i ，则a 2－b 2＝0，2ab ＝2， 解得a ＝1，b ＝1或a ＝－1，b ＝－1.故“a ＝b ＝1”是“(a ＋b i)2＝2i ”的充分不必要条件，故选A.8.△ABC 的外接圆的圆心为O ，半径为1，若OA →＋AB →＋OC →＝0，且|OA →|＝|AB →|，则CA →·CB →等于( ) A.32B. 3C.3D.2 3 解析 ∵OA →＋AB →＋OC →＝0，∴OB →＝－OC →，故点O 是BC 的中点，且△ABC 为直角三角形， 又△ABC 的外接圆的半径为1，|OA →|＝|AB →|，∴BC ＝2，AB ＝1，CA ＝3，∠BCA ＝30°， ∴CA →·CB →＝|CA →||CB →|·cos 30°＝3×2×32＝3.故选C.9.如图，在△ABC 中，N 是AC 边上一点，且AN →＝12NC →，P 是BN 上的一点，若AP →＝mAB →＋29AC →，则实数m 的值为( ) A.19 B.13 C.1 D.3 解析 ∵AN →＝12NC →，∴AN →＝13AC →，∴AP →＝mAB →＋29AC →＝mAB →＋23AN →.又B ，N ，P 三点共线，∴m ＋23＝1，∴m ＝13.故选B.10.如图，在正方形ABCD 中，M ，N 分别是BC ，CD 的中点，若AC →＝λAM →＋μBN →，则λ＋μ等于( )A.2B.83C.65D.85解析 方法一 如图以AB ，AD 为坐标轴建立平面直角坐标系，设正方形边长为1，AM →＝⎝⎛⎭⎫1，12，BN →＝⎝⎛⎭⎫－12，1，AC →＝(1，1). ∵AC →＝λAM →＋μBN →＝λ⎝⎛⎭⎫1，12＋μ⎝⎛⎭⎫－12，1＝⎝⎛⎭⎫λ－μ2，λ2＋μ， ∴⎩⎨⎧λ－μ2＝1，λ2＋μ＝1，解得⎩⎨⎧λ＝65，μ＝25，故λ＋μ＝85.选B.方法二 以AB →，AD →作为基底， ∵M ，N 分别为BC ，CD 的中点，∴AM →＝AB →＋BM →＝AB →＋12AD →，BN →＝BC →＋CN →＝AD →－12AB →，∴AC →＝λAM →＋μBN →＝⎝⎛⎭⎫λ－μ2AB →＋⎝⎛⎭⎫λ2＋μAD →， 又AC →＝AB →＋AD →，因此⎩⎨⎧λ－μ2＝1，λ2＋μ＝1，解得⎩⎨⎧λ＝65，μ＝25.所以λ＋μ＝85.选B.11.已知a >0，⎪⎪⎪⎪a ＋i i ＝2，则a 等于( )A.2B. 3C. 2D.1解析 ⎪⎪⎪⎪a ＋i i ＝⎪⎪⎪⎪－a i ＋11＝(－a )2＋1＝2，即a 2＝3. 又∵a >0，∴a ＝ 3.故选B.12.已知△ABC 是边长为2的等边三角形，P 为平面ABC 内一点，则P A →·(PB →＋PC →)的最小值是( )A.－2B.－32C.－43 D.－1解析 方法一 (解析法)建立坐标系如图所示，则A ，B ，C 三点的坐标分别为A (0，3)，B (－1，0)，C (1，0).设P 点的坐标为(x ，y )，则P A →＝(－x ，3－y )， PB →＝(－1－x ，－y )，PC →＝(1－x ，－y )， ∴P A →·(PB →＋PC →)＝(－x ，3－y )·(－2x ，－2y ) ＝2(x 2＋y 2－3y )＝2⎣⎡⎦⎤x 2＋⎝⎛⎭⎫y －322－34≥2×⎝⎛⎭⎫－34＝－32. 当且仅当x ＝0，y ＝32时，P A →·(PB →＋PC →)取得最小值，最小值为－32.故选B. 方法二 (几何法)如图所示，PB →＋PC →＝2PD →(D 为BC 的中点)，则P A →·(PB →＋PC →)＝2P A →·PD →.要使P A →·PD →最小，则P A →与PD →方向相反，即点P 在线段AD 上，则(2P A →·PD →)min ＝－2|P A →||PD →|， 问题转化为求|P A →||PD →|的最大值.又当点P 在线段AD 上时，|P A →|＋|PD →|＝|AD →|＝2×32＝3，∴|P A →||PD →|≤⎝⎛⎭⎪⎫|P A →|＋|PD →|22＝⎝⎛⎭⎫322＝34， ∴[P A →·(PB →＋PC →)]min ＝(2P A →·PD →)min ＝－2×34＝－32.故选B.13.已知a ，b ，e 是平面向量，e 是单位向量.若非零向量a 与e 的夹角为π3，向量b 满足b 2－4e ·b ＋3＝0，则|a －b |的最小值是( )A.3－1B.3＋1C.2D.2－ 3 解析 ∵b 2－4e ·b ＋3＝0， ∴(b －2e )2＝1，∴|b －2e |＝1.如图所示，把a ，b ，e 的起点作为公共点O ，以O 为坐标原点，向量e 所在直线为x 轴，则b 的终点在以点M (2，0)为圆心，1为半径的圆上，|a －b |就是线段AB 的长度.要求|AB |的最小值，就是求圆上动点到定直线的距离的最小值，也就是圆心M 到直线OA 的距离减去圆的半径长，因此|a －b |的最小值为3－1.故选A.14.设P 是ΔABC 所在平面内的一点，若()2AB CB CA AB CP ⋅+=⋅u u u r u u u r u u u r u u u r u u u r 且222AB AC BC AP =-⋅u u u r u u u r u u u r u u u r．则点P 是ΔABC 的（ ）A ．外心B ．内心C ．重心D ．垂心解析 由()2AB CB CA AB CP ⋅+=⋅u u u r u u u r u u u r u u u r u u u r ，得()20AB CB CA CP ⋅+-=u u u r u u u r u u u r u u u r，即()()0AB CB CP CA CP ⎡⎤⋅-+-=⎣⎦u u u r u u u r u u u r u u u r u u u r， 所以()0AB PB PA ⋅+=u u u r u u u r u u u r，设D 为AB 的中点，则20AB PD ⋅=u u u r u u u r ，故0AB PD ⋅=u u u r u u u r ；因为222AB AC BC AP =-⋅u u u r u u u r u u u r u u u r ，所以()()2AC AB AC AB BC AP +-=⋅u u u r u u u r u u u r u u u r u u u r u u u r ，所以()20BC AC AB AP ⋅+-=u u u r u u u r u u u r u u u r，设BC 的中点为E ，同上可知0BC PE ⋅=u u u r u u u r ，所以P 为AB 与BC 的垂直平分线的交点．所以P 是ΔABC 的外心．选A ． 二、填空题：本大题共6小题，共30分．15.设x ，y 为实数，且x 1－i ＋y 1－2i ＝51－3i ，则x ＋y ＝______.答案 4解析 由题意得x 2(1＋i)＋y 5(1＋2i)＝510(1＋3i)，∴(5x ＋2y )＋(5x ＋4y )i ＝5＋15i ，∴⎩⎪⎨⎪⎧ 5x ＋2y ＝5，5x ＋4y ＝15，∴⎩⎪⎨⎪⎧x ＝－1，y ＝5，∴x ＋y ＝4. 16.在△ABC 中，有如下命题，其中正确的是________.(填序号) ①AB →－AC →＝BC →；②AB →＋BC →＋CA →＝0；③若(AB →＋AC →)·(AB →－AC →)＝0，则△ABC 为等腰三角形； ④若AB →·BC →>0，则△ABC 为锐角三角形. 答案 ②③解析 在△ABC 中，AB →－AC →＝CB →，①错误；若AB →·BC →>0，则B 是钝角，△ABC 是钝角三角形，④错误.17.若点M 是△ABC 所在平面内的一点，且满足5AM →＝AB →＋3AC →，则△ABM 与△ABC 的面积之比为________.答案 35解析 设AB 的中点为D ，由5AM →＝AB →＋3AC →， 得3AM →－3AC →＝2AD →－2AM →，即3CM →＝2MD →. 故C ，M ，D 三点共线， 如图所示，MD →＝35CD →，也就是△ABM 与△ABC 对于边AB 的两高之比为3∶5， 则△ABM 与△ABC 的面积之比为35.18.已知i 为虚数单位，实数x ，y 满足(x ＋2i)i ＝y －i ，则|x －y i|＝______. 答案5解析 ∵(x ＋2i)i ＝y －i ，∴－2＋x i ＝y －i ，∴⎩⎪⎨⎪⎧x ＝－1，y ＝－2，则|x －y i|＝|－1＋2i|＝ 5.19.已知AB →⊥AC →，|AB →|＝1t ，|AC →|＝t ，若点P 是△ABC 所在平面内的一点，且AP →＝AB →|AB →|＋4AC→|AC →|，则PB →·PC →的最大值为________. 答案 13解析 以点A 为坐标原点，AB →，AC →所在直线分别为x 轴，y 轴，建立如图所示的平面直角坐标系，则A (0，0)，B ⎝⎛⎭⎫1t ，0，C (0，t )，AB →＝⎝⎛⎭⎫1t ，0，AC →＝(0，t )， AP →＝AB →|AB →|＋4AC →|AC →|＝t ⎝⎛⎭⎫1t ，0＋4t (0，t )＝(1，4)，∴点P (1，4)，则PB →·PC →＝⎝⎛⎭⎫1t －1，－4·(－1，t －4)＝17－⎝⎛⎭⎫1t ＋4t ≤17－21t·4t ＝13， 当且仅当1t ＝4t ，即t ＝12时取“＝”，∴PB →·PC →的最大值为13.20.已知向量a ＝(1，2)，b ＝(1，1)，且a 与a ＋λb 的夹角为锐角，则实数λ的取值范围是__________.答案 ⎝⎛⎭⎫－53，0∪()0，＋∞ 解析 a ＋λb ＝(1＋λ，2＋λ)，由a ·(a ＋λb )>0，可得λ>－53.又a 与a ＋λb 不共线，∴λ≠0. 故λ>－53且λ≠0.。

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最新年高二英语寒假自主学习作业及答案
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 单选1.DACAB 6.CDBBA 11.CABCB 16.BCADC 21.DBDBC
 36、答案B。

Bob刚刚和妻子Pat签订了一份母亲合同宣称今年夏天七十天里他将接管照料孩子们的工作以及一切家务。

only表示仅仅;nearly表示几乎、密切地;over表示结束、越过、从头到尾的意思。

 37、答案D。

take over表示把...从一地带到另一地、接收、接管的意思;stick to表示粘住;set about表示开始、着手的意思;think about表示考虑、回想的意思，此处只有D 项最符合句意。

 38、答案D。

整个句子的逻辑关系为虽然，但是他非常自信。

although引导表示让步的状语从句，符合句意。

if表示如果，引导条件状语从句;表示是否，引导宾语从句。

as表示当时，引导时间状语从句;表示由于时引导原因状语从句;表示按照时引导方式状语从句;表示正如时，引导定语从句。

since表示既然时引导原因状语从句;表示自从时引导时间状语从句。

 39、答案B。

七十天里只过了四十天，他就想不干了。

give up放弃;carry on表示继续开展、坚持、举止失常的含义;break down表示毁掉、制服、压倒、停顿、倒塌、中止、垮掉、分解等意思;find out表示找出、发现、查明(真相等)、认识到、想出、揭发
1。

2016－2017学年度期末自主练习高二英语参考答案听力(每小题1.5分)：1—5BCACB 6—10ACABC11—15CBBCA 16—20CABCC阅读理解（每小题2分）：21—23BCA 24—27CBAD 28—31 ABCD32—35 DACC七选五（每小题2分）：36—40 AFCEB完形填空（每小题1.5分）：41—45BCBCD 46—50AABCD 51—55BACBC 56—60ADBDC语法填空（每小题分）：61. An 62. Americans 63. necessarily 64. helpful 65. (to) keep66. us 67. rewarding 68. In 69. are having 70. that/which短文改错（每小题1分）：about/on opinionsto haveandother purposes.spend Besidesenjoydifferently 去掉to或 traveltheirIn my opinion, it would be much better∧stay at home, where I can do whatever I like, such asto书面表达(One possible version)：Dear Peter,Our school is planning an educational excursion to Mount Tai from August 6 to August 10 during this summer vacation. I can’t wait to invite you to take part in it.As we know, we students are spending most of our time on the campus. As a result, we are almost cut off from the outside world. Hopefully, the excursion will provide us a good chance to get closer to nature, which will definitely contribute to our physical and mental health. What’s more, the excursion will surely broaden our horizons by experiencing the local cultures.I believe the excursion will be both excitingand rewarding. And we’re eagerly expecting your ing.Yours,Li Hua附：听力录音材料1. W: How long canI keep these books?M: You can keep them for a week. If you fail to return on time, you will be fined.W: Thank you.2. M: When will you take me to the zoo, 8:00 or 8:30? Mum, I can’t wait to see the tiger.W: Well. Rush hours are from 7:30 to 9:00. I hate them. Will 9:30 be all right?M: It depends on you.3. M: How is your holiday in Shaoxing?W: Very good, especially the weather there. It’s sunny and bright every day.M: Yes, you have e just in the right season. It rains a lot during the autumn.4. W: How can we get to the airport?M: There is a bus directly going there. But we only have half an hour left, we’d better take a taxi.5. W: I heard that Mike had been fired. I know he was often ill and had to take careof his sick mother.M: Oh, that’s not the real reason. I heard Mike made a big mistake last week.6. M: Sundays are my favorite. Do you know the reason, mom?W: Let me guess, Honey. You have no classes on Sundays.M: That’s right, but Idon’t go to school on Saturdays either.W: Don’t tell me there are basketball games on TV.M: You are so clever. You know me better than anybody else.W: But you promised to help me clean the dining room today.M: I promise. But I really want to know the result of the game. Please give me half an hour to watch it.W: No problem if you clean the room first.7. W: Rick. There will be an American concert tonight. Shall we go and see it?M: It sounds interesting. When will it begin?W: Let me get it…7:30 this evening at Riverside Theatre.M: But I have told our six-year-old daughter that we might eat out with her tonight. I should have told you earlier.W: She has told me about that. We can take her along. We can eat out first. Then we go to the concert.M: Can we? And what about the price?W: $20 for adults and half of that for a child.M: OK. We’d better hurry. There is little time left for us to enjoy the meal.8. M: Hi, Jane.W: Hi, Bill. Today is a very good day for me. Anything lucky for you, Bill?M: Yes, I’ve got a new job. It wasn’t easy for me to get a new job. I’ve been looking for one forquite a long time.W: You’re lucky. Was the interview difficult?M: Several men were interviewed for this job, and I didn’t know if I could get it.This morning someone from the pany called and asked to see me at 2 o’clock.W: Did you go there?M: Yes. When I came into the office, he told me I was hired. I am feeling so happy.W: How about the pay?M: I’ll be paid well and my work will be very interesting. I’m sure I can manage it.W: I believe that. Where are you going now?M: I’m going right home to tell my wife the good news.W: That’s fine. When will you begin work?M: I’ll begin work on Monday. I still have two days to prepare for it.9. M: So, how should we get to the theatre?W: Let’s go there by bus.M: I hate the bus system in London! The bus drivers are rude, the buses are never on time.W: It’s not that bad. You probably just had a bad experience once.M: It wasn’t just once. Every time I take the bus, something bad happens to me or to someone else on the bus.W: We could take the subway, but we’d have to go three stops along one line and then change trains twice.M: Train fares are twice as expensive as the bus fare, too.W: If we don’t hurry up, we’ll miss the show. Should we take the bus?M: We’re already late, so I think we had better take a taxi.W: I don’t think we’ll be able to find a taxi very easily during rush hours. Let’s just take the bus.M: Fine. Have a look at the timetable to find out when the next one arrives.W: It looks like it should be here in just a few minutes. Don’t worry. Nothing bad will happen. I’ll even buy your ticket for you.M: Thanks. That is nice of you.10. It’s twelve o’clock. Time for Australia Educational News in brief.Sydney---Yesterday, 370 primary school students participated in a clean-up event. The event aims to help maintain litter control within the National Forest Park.Gold Coast---High school students hold a painting exhibition at the Gold Coast. The exhibition reflects the high achievement levels of students studying watercolor painting at different schools.Brisbane---Queensland schools have moved one step closer to being linked to the global education munity through the World Wide Web. State education Minister Mr. Bob Quinn says that the new website offers endless professional development opportunities for both students and teachers.Again Brisbane---6,000 school cleaners gathered in front of the town hall to object to the government’s decision. The government reached a decision last month to let private panies take over the schools’ cleaning.。

学生寒假自主学习讲义参考答案高二英语（1）模块五第一单元答案与解析1-5 CCBAC, 6-10 ADDDB, 11-15 CBAAB16-20 ADBDC, 21-25 ABCDA, 26-30 CBDAB, 31-35 CCBDA36—40. CCACB 41—45. CCAAB 46—50. ACDBA51.Reasons 52. Advice/Tips 53. vocabulary 54. expand 55. making56. speaking 57. Pay 58. Listening /Hearing 59. instead 60.Don’t61. deliberately 62. dilemma 63. apologized 64. hesitation 65. absorbed66. so can Jack 67. made an apology to 68. tried to persuade69. There is no doubt 70. to try; rather than eat71. feel betrayed 72. was determined to; sensed 73. in the world74. Regardless of; is that 75. feel like; overlooking76. I said some really cruel things too, but I can’t stand seeing our team lose.77. He seemed absent-minded and as a result of his careless playing, we lost the game.78. Don’t let a small disagreement ruin your friendship.79. If she is a good friend, you should apologize for blaming her.80. Boys and girls have different attitudes towards friendship.部分题型答案样本1.考察冠词。

译林版高中英语模块七第二单元自主学习任务单Period 1 Welcome & Reading 1I. Learning ObjectivesAfter this class, students should be able to:1. know the process of discovering aspirin and penicillin and their effects.2. appreciate expository writing and understand medical terms in medical articles.3. be inspired to have a stronger sense of social responsibility and even devote themselves to searching more life-saving medicines.II. Learning ProcedureLead inQuestions:1. We are enjoying the longest winter holiday. Can we go out to enjoy ourselves? Why or why not?2. What do we need most at this moment?Step 1. SkimmingSkim the text and find out the answers to these questions:1. What are the two medicines mentioned in the article?_____________________________________________2. What award did Fleming, Florey and Chain share?______________________________________________Step 2. Scanning:Task 1. Scan the text and write down the correct information about these two medicines in each box.The development of aspirin and penicillin:Task 2. Scan the text and fill in the blanks about the effect of aspirin:Aspirin can:reduce ____________ and _______________.● help stop________________● reduce the risk of ________________.● prevent_______________.● reduce the risk of some ______________.● increase _____________of people ’s lives.● reduce _____________and help people ____________.Task 3. Scan the text and fill in the blanks about the effect of penicillin:Penicillin can be applied to treat illness _______________.Task 4. Scan the text and find out the problems the development of penicillin as a drug faced after it was discovered:a.________________________________________________________________b.________________________________________________________________Task 5. Scan the text and match the people and their contributions:Step 3. Discussion:1.What conclusion can you draw after you get to know the development of aspirin and penicillin ?2. What would have happened had aspirin and penicillin not been invented?3. What can we students do to maintain a safe and enjoyable environment?Step 4. Reading strategy1. How can we understand medical terms ？2. How many kinds of similar words are included in a medical article? what are they?a. from the same stem （写出与下列单词同一词根的单词）beneficial (L4) ______________ chemical (L7) ______________ trial (L13) _______________ relief (17) _______________ length (L28) _______________ abnormal (L36) _______________ application (L40) _______________ effective (L45) _______________ approval (L49) ________________b. compound words （写出下列单词的汉语意思）1. Hippocrates2. Dr. Felix Hoffmann3. Lawrence Craven4. Smith and Willis5. Dr. Thun6. Dr. Yuan Minsheng7. Alexander Fleming8. Howard Florey and ErnstA. discovered penicillinB. found aspirin could reduce blood sugar levelC. made a juice containing salicylic acidD. produced aspirinE. showed aspirin could reduce the risk of some cancersF. introduced aspirin could reduce the risk of heart attacks G . proved aspirin could reduce the risk of heart attacks H. made and tested penicillin in large quantitiessalicylic acid(L11)_________________ life-saving _______________________best-selling(L17) __________________ heart attack(L21) _________________blood sugar(L29) __________________ widespread(L50)__________________c. irregular plural forms （写出下列单词的复数形式）bacterium(L39)_________________Step 5. Writing假如你是李华，给你的朋友张明写一封信，介绍一下现在连云港目前抵抗新冠状病毒的情况，内容包括：1. 政府采取的措施。