高三限时训练
高三二轮复习限时训练(一)
高考二轮复习限时训练（一）（时间：60分钟）班级 姓名 得分一、填空题：本大题共12小题，每小题5分，共60分。
1、复数ii4321+-在复平面上对应的点位于第__ 象限. 2、命题“2,220x R x x ∃∈++≤”的否定是3、设{}{}=⋂+==∈==B A x y y x B R x x y y A 则,2|),(,,|2 4、已知x 、y 的取值如下表：从散点图分析，y 与x 线性相关，且回归方程为 0.95y x a =+，则a = 5、若椭圆的焦距长等于它的短轴长，则椭圆的离心率等于____ ____。
6、如果执行右面的程序框图，那么输出的S = 7、把函数4cos()3y x π=++1的图象向左平移ϕ个单位，所得的图象对应的函数为偶函数，则ϕ的最小正值为8、如果实数x ,y 满足x 2+y 2=1,则（1+xy ）(1－xy )的最小值为9、已知实数x ，y 满足条件5003x y x y x -+⎧⎪+⎨⎪⎩≥≥≤，i z x y =+（i 为虚数单位），则|12i |z -+的最小值是 ．10、一枚半径为1的硬币随机落在边长为3的正方形所在平面内，且硬币一定落在正方形内部或与正方形有公共点，则硬币与正方形没有公共点的概率是11、若函数f (x )=e x -2x-a 在R 上有两个零点，则实数a 的取值范围是12、设函数)0](,[,321)1ln()(2>-∈+-+=t t t x x e x x f x ，若函数的最大值是M ，最小值是m ，则M+m=二、解答题：本大题共2小题，共30分。
13、（本小题满分15分）在ABC ∆中，角A 、B 、C 的对边分别为,,a b c ，已知向量33(cos ,sin ),22A A m = (cos ,sin ),22A An =且满足m n +=（Ⅰ）求角A 的大小；（Ⅱ）若,b c +=试判断ABC ∆的形状。
14、（本小题满分15分）已知圆C ：224x y +=.（1）直线l 过点()1,2P ，且与圆C 交于A 、B 两点，若||AB =l 的方程;（2）过圆C 上一动点M 作平行于x 轴的直线m ，设m 与y 轴的交点为N ，若向量OQ OM ON =+，求动点Q 的轨迹方程，并说明此轨迹是什么曲线.高考二轮复习限时训练（一）1、三2、2,220.x R x x ∀∈++>3、∅4、2.6 5 6、25507、32π 8、43 9 10、 π+21111、()+∞-,2ln 2212、6 二、解答题： 13、（1）3A π=———————————————————7分（2）ABC ∆为直角三角形。
高三物理限时训练4
物理限时训练4一、单选择題:14. 物理学中，运动的分解、力的合成、平均速度这三者所体现的共同的科学思维方法是（）A．控制变量法 B.极限思维法 C. 理想模型法 D.等效替代法15. 我国“北斗”卫星导航定位系统将由5颗静止轨道卫星（同步卫星)和30颗非静止轨道卫星组成,30颗非静止轨道卫星中有27颗是中轨道卫星。
中轨道卫星轨道高度约为 2.15X104 km ,静止轨道卫星的高度约为3.60X104 km。
下列说法正确的是（）A. 中轨道卫星的线速度大于7.9 km/sB. 5颗静止轨道卫星的轨道平面和赤道平面的夹角各不相同C. 静止轨道卫星的运行周期大于中轨道卫星的运行周期D. 静止轨道卫星的向心加速度大于中轨道卫星的向心加速度16. 下图为某款电吹风的电路图。
a、b、c、d为四个固定触点。
可动的扇形金属触片P可同时接触两个触点。
触片P处于不同位置时，电吹风可处于停机、吹热风和吹冷风等不同的工作状态。
n1和n2分别是理想变压器的两个线圈的匝数。
该电吹风的各项参数如下表所示。
下列说法正确的有A. 吹冷风时触片P与触点b、c接触B. 可由表格中数据计算出小风扇的内阻为60ΩC. 变压器两线圈的匝数比n l：n2 = 13 : 15D. 若把电热丝截去一小段后再接入电路，电吹风吹热风时的功率将变小，吹冷风时的功率不变17. 4（）在“测定玻璃的折射率”实验中，已画好玻璃砖界面两直线aa′与bb′后，不小心误将玻璃砖向上稍平移了一点，如下图左所示，若其它操作正确，则测得的折射率将A．变大B．变小C．不变D．变大、变小均有可能二、不定项选择18. 利用传感器与计算机结合，可以自动作出物体运 动的图象。
某同学在一次实验中得到运动小车的速度一 时间图象如图所示，由此图象可知A. 18 s 时的加速度大于13 s 时的加速度B. 小车做曲线运动C. 13 s 末小车距离出发点最远D. 小车前10S 内的平均速度比后10 S 内的大19.如图所示，在光滑绝缘斜面上放置一矩形铝框abcd,铝框的质量为 m 、电阻为R ，斜面上ef线与gh 劝线间有垂直斜面向上的匀强磁场，ef//gh//pq//ab,eh>bc 。
高三英语晚自习限时训练
高三英语晚自习限时训练一、阅读理解AExperience College at HarvardChallenge yourself in college-level academics. Meet new friends from around the world. Strengthen your college application. And, build important life skills that can make your future college experience a success.Pre-College ProgramAn intense and exciting glimpse into the college experience. During this intensive two-week program, you will take the first steps toward your college j ourney alongside a diverse group of exceptional high school students.• Challenge yourself in a college course taught by Harvard faculty and affiliates, without the pressure of grades.• Engage with your peers in structured co-curricular activities, college readiness workshops, and social events.• Two weeks, non-creditSecondary School ProgramImmerse yourself in college life for seven weeks! In this dynamic seven-week program, you can earn college credit while experiencing firsthand what it’s really like to be a college student.• Choose one or two college-level classes that delve deeply into subjects that really excite you and may not be offered in high school.• Prepare for the future as you experience what it’s really like to balance responsibility with independence in one of three program formats – online, commuting, or residential. • Seven weeks, college creditApplication is now open for both high school programs! See program calendars for important dates and deadlines.To get our updates, join our mailing list for helpful information and important deadlines. Start your education journey today!1. What can we learn about the two programs?A．All the learning activities take place online.B．They are required procedures for college application.C．They challenge the students with college-level courses.D．Students can earn college credits after learning the two programs.2. According to this passage, applicants can .A．start to apply for both programs nowB．pay for the program calendars from todayC．apply for the programs throughout the yearD．download a mailing list to get helpful updates3. What is the purpose of this passage?A．To raise money for Harvard Summer Programs.B．To show the diverse courses in Harvard University.C．To share the college learning experience with readers.D．To introduce Harvard Summer Programs for high school students.BOne third of adults over 65 in America have never used the Internet, and half don’t even have Internet access at home. In San Francisco, “the center of tech”, 40% of older adults do not have basic digital literacy skills.This situation is becoming appalling as over 10,000 Americans turn 65 every single day. By 2050,22% of Americans will be 65 or older. Meanwhile, technology is developing very fast. This means that a large number of people will be unable to proficiently use emergent technology.Many people believe that seniors aren’t required to participate in our tech future because they’ll be retired and relaxed soon. But this is the farthest thing from the truth. Baby boomers are currently experiencing a different boom: With more people getting older than ever before, their life expediencies are also increasing dramatically. With medical advancements, the number of American people projected to live into the ir 90’s has doubled since 1965.However, they don’t have strong financial or educational support. This is not a problem; it’s a crisis. More than half of employees over 50 have been laid off in what’s being called ”forced retirement“. And few organizations are actively helping older employees make the transition from full-time jobs to part-time ones. For those fortunate enough to be employed, 3 out of 5 older workers experience prejudice.The easiest solution is to teach digital literacy. If baby boomers want to survive the forthcoming retirement crisis, they should get enough digital knowledge and skills to operate today’s tools and tomorrow’s platforms. With every crisis comes an opportunity. Tutoring, customer service, editing, research, book-keeping, and other virtual assistance-based work open the doors. But again, digital knowledge is first required to live in our high-tech society and gig economy. So try to get more online and navigate the growing number of sites and apps.；4. What does the underline d word “appalling” probably mean in paragraph2? A．Confusing. B．Terrible. C．Controllable. D．Inspiring.；5. What problem may baby boomers face?A．A crisis after retirement. B．Being knocked out in the future. C．Failing to receive good healthcare. D．Tending to double their life expediencies.；6. What is the last paragraph mainly about?A．The features of high-tech jobs. B．The way out for baby boomers. C．Potential industries in the future. D．The importance of developing technology.；7. What does the author advise baby boomers to do?A．Have a good sense of crisis. B．Avoid retiring at an early age. C．Look for many part-time jobs. D．Improve digital literacy actively.CGrowing up as kids we are told to share our toys and not to be selfish. We also live in an age when discussing our feelings is encouraged. But when does it all become toomuch? With new crazes trending all the time, such as dance challenges and wearing a carpet as a dress, the question is: when can sharing become oversharing on social media?“Oversharing” has become associated with social media, but it isn't exclusive to this platform. Imagine you head to a party and meet x k w someone. Within five minutes they have revealed private details about their life. While some of us may try to escape these people, according to marriage advisor Carolyn Cole, this form of oversharing could come from a strong desire to connect with someone. But how does this translate to social media?Dr. Christopher Hand, a lecturer in cyberpsychology (网络心理学），says the more details people disclose, the less sympathy we express when things go wrong. It seems that searching for sympathy by oversharing is generally considered as negative rather than the cry for help it could really be.However, Dr. Hand's research also seems to suggest that the more we post on a platform, the more socially attractive we become-provided that the posts that we bang out are positive. Even back in 2015, Gwendolyn Seidman PhD said that we should avoid complaining and being negative online. We should also avo id showing off, especially about our love lives. It makes sense-if your date is going “that well", would you really have time to share a photo with text?So, how can you know if you are oversharing? Well, why not ask your friends in real life. They would probably be happy to tell you if your posts about your breakfast or your complaints about your lack of money really are too much.；8. What does the underlined word “exclusive" in paragraph 2 mean?A．Unique.B．Similar.C．Relevant.D．Fundamental.；9. Why do some people prefer oversharing at parties?A．To draw others' attention.B．To satisfy others' curiosity.C．To remove negative feelings.D．To develop good relationships.；10. Which of the following may Dr. Hand agree with?A．Sharing more details online can attract more sympathy.B．Oversharing negative experiences is equal to crying for help.C．Sharing negative posts can't help one become socially attractive.D．Oversharing isn't likely to happen online when things go wrong.；11. According to the text, what should be avoided for online sharing?A．Reflecting on past bad manners.B．Showing a great many expensive goods.C．Writing a recipe for a balanced breakfast.D．Recording unforgettable moments with friends.二、七选五阅读For most Americans, the weeks between Thanks giving and New Year’s Day are a time when we’re eating more than we should. 12 The problem wasn’t really thesmall weight increase but that study participants never lost what they put on during the holiday season.So, how do you avoid gaining weight without missing out on the holiday fun? There are several small changes we can make.We have to make time to exercise. With all the shopping that needs to be done and the holiday get-togethers, the first thing cut out of our schedules is often exercise. 13 Exercise not only burns off those holiday treats, it reduces our stress as well.14 Allow yourself to enjoy the foods you really love, but choose wisely and watch your portion (份额) size. If you’ve looked forward to Aunt Sally’s Christmas cookies all year, have one. Mindful eating is the key. Take a small portion of your favorite dessert or high-calorie dish and then enjoy it.Try never to go to a holiday celebration hungry. When you are really hungry, you tend to eat more than you normally would. 15 Then you’ll find it easier to control how much you eat.Weigh yourself at least once a week on the same day, at the same time and on the same scale (称). It’s important to keep in mind that our weight can change because of salt intake or other factors. 16A．Mind your table manners while eating.B．You don’t need to give up all of the holiday goodies.C．However, knowing your weight helps to keep you on track.D．Have a high-fiber, low-calorie snack before attending a party.E．A study found participants gained just over a pound during this time.F．Instead, this is the time we should put working out at the top of our to-do list. G．Researchers suggest people eat smaller meals more times during the course of the day.三、完型填空Sammie Vance approached her principal at Haley Elementary with the idea of installing “buddy benches” into her school playground to help others feel less lonely. The principal 17 of the idea. But wooden benches are18 . Just one would be worth nearly a thousand dollars. However, a bench made of 19 bottle caps would only be around $250. So Sammie 20 others in her community to collect enough caps to make one bench. 21 , she managed to get bottle caps from 50 states. And th us, the initiative of “Sammie’s Buddy Bench Project” was 22 .Pretty soon, Sammie’s Buddy Bench Project began commanding the 23 of several news media. For her amazing efforts, Sammie has been chosen the receiver of several 24 and was 25 one of People magazine’s “Girls Changing the World”. And 26 , more than 200 bottle cap buddy benches have been around at schools and parks across the country, plus Mexico and Australia.This is, of course, not just a beautiful story ab out helping others. It’s also a major win for 27 . It is reported that 1.3 billion bottle caps are used each year. These caps cannot be recycled in the same way along with plastic bottles 28 each has a different melting point, and when they are 29 in, it can ruin an entire batch (一批). And that’s when they get discarded. Millions of caps have been found in our 30 alone, whichcan be devastating to marine life. In fact, it’s one of the leading 31 of death. It’s big carin g hearts like Sammie’s that help our planet heal against damage.17. A．complained B．allowed C．approved D．spoke18. A．costly B．heavy C．productive D．valueless19. A．reviewed B．recreated C．removed D．recycled20. A．kept track of B．reached out to C．sang high praises for D．got rid of21. A．Unfortunately B．Accordingly C．Apparently D．Eventually22. A．born B．promoted C．obtained D．commented23. A．attraction B．attention C．acceptance D．admission24. A．campaigns B．contests C．assemblies D．awards25. A．nicknamed B．introduced C．defined D．named26. A．the other day B．to date C．by then D．until recently27. A．sustainability B．changeability C．adaptability D．visibility28. A．though B．as C．if D．when29. A．combined B．mixed C．involved D．fitted30. A．fields B．walls C．oceans D．rains31. A．explanations B．questions C．ways D．causes四、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
高三生物限时训练三
吴忠回中高三生物限时练习三一、 选择题：1．下表中a 、b 、c 符合如右图所示关系的是 （ ）2．下图表示细胞中两种重要的新陈代谢过程，有关叙述正确的是（ ）A ．乙过程只能发生在叶绿体中B ．甲过程发生在线粒体中C ．乙可以表示化能合成作用的部分过程D ．甲可以表示乳酸菌的细胞呼吸3．右图示某生物正在进行某种分裂的细胞，等位基因A 和a 位于染色体的位置（不考虑交叉互换）可能是（ ） A ．A 位于①上，a 位于⑤上 B ．A 位于⑤上，a 位于⑦上C ．该细胞只有a ，分别位于①和③上D ．该细胞只有A ，分别位于②和⑥上4、昆虫学者Alain Robichon 最近发现蚜虫体内的类胡萝卜素能吸收光能，并把它传送给负责能量生产的组织细胞。
阳光下，蚜虫的ATP 生成将会增加，黑暗时，其ATP 含量便会下降。
下列关于蚜虫产生ATP 的说法正确的是（ ） A ．ADP 合成ATP 时需要的能量只能来自光能 B ．黑暗中大量产生ATP 时一定伴随着O 2的消耗 C ．类胡萝卜素吸收光能发生在类囊体薄膜上 D ．相同情况下黄光照射比蓝紫光照射ATP 含量上升快5、哺乳动物红细胞的部分生命历程如下图所示，图中除成熟红细胞外，其余细胞中均有核基因转录的RNA ，下列叙述正确的是（）A. 造血干细胞与幼红细胞中基因的执行情况相同B. 成熟红细胞除进入凋亡历程外还可能发生癌变C. 网织红细胞仍然能够合成核基因编码的蛋白质D. 成熟红细胞衰老后控制其凋亡的基因开始表达 6、下列关于种群基因库的叙述，错误的是（ ） A ．一个种群所含的全部基因叫做这个种群的基因库B ．生物个体总是要死亡的，但基因库却因种群个体的繁殖而代代相传C ．种群中每个个体含有该种群基因库的全部基因D ．基因突变可改变种群基因库的组成 选择题答案：二、非选择题29．（10分）萌发的小麦种子中淀粉酶活性较强，主要有α—淀粉酶和β—淀粉酶。
α—淀粉酶不耐酸、较耐热，在pH 为3.6以下迅速失活，而β—淀粉酶不耐热，在70℃条件下15 min 后失活。
20222-2023学年江苏省梁丰高级中学高三下学期限时训练4地理试题
20222-2023学年江苏省梁丰高级中学高三下学期限时训练4地理试题1. 某年11月，华北一气象站（位置见左图）测得锋面过境前后近地面气象要素的变化数据，如右图所示。
据此完成下面小题。
1．锋面过境时，温度升高的原因是（）A．暖锋影响，气团加热B．地形影响，气流下沉增温C．水汽凝结，热量释放D．风速增大，大气对流加强2．此次夜间突发性增温可能导致当地（）A．道路表面湿滑B．出现降雨天气C．出现逆温现象D．作物呼吸作用减弱2. 槽线是指同一褶曲层面上各最低点的连线。
某区域曾发生过多次地质事件,地层有褶皱现象,断层两侧地块升降显著。
图为“该区域地质图”。
据此完成下面小题。
1．甲～丁四地中位于向斜槽部的是（）A．甲B．乙C．丙D．丁2．可推测该地断层（）A．形成于侏罗纪时期B．与向斜槽线相平行C．西侧地块相对上升D．附近长期受到侵蚀3．在丙地层中可能会发现（）A．鱼类化石B．鸟类化石C．恐龙化石D．古人类化石3. 下图示意南亚地区夏季和冬季的多年平均海平面气压场（单位：百帕）及盛行风向。
据此完成下面小题。
1．南亚地区（）①夏季风比冬季风势力强②夏季风由东南信风北移形成③冬季风比夏季风势力强④冬季风由东北信风南移形成A．①②B．①④C．②③D．③④2．与夏季风相比，南亚冬季风与等压线夹角较大的主要原因是（）A．地转偏向力较大B．水平气压梯度力较大C．气流的湿度较小D．风与地表摩擦力较大4. 在北美洲西海岸某近岸地区冬季盛行南风，夏季盛行偏北风，风向的季节转换驱动洋流方向发生改变（下图）。
据此完成下面小题。
1．表层洋流流向与近岸海水垂直运动相对应的是（）①a—甲②a—乙③b—甲④b—乙A．①③B．②③C．①④D．②④2．该海域近岸地区出现海雾最为频繁的季节是（）A．春季B．夏季C．秋季D．冬季5. 针茅为多年生禾草，有发达的须状根系，具有耐牲畜践踏的特点，能忍受大气和土壤的长期干旱。
针茅春季萌发稍晚，冬季枯草保存良好，放牧利用时间较长，且再生性强。
高三英语晚自习限时训练 (1)
高三英语晚自习限时训练【3月31日晚限制：不超过65-70分钟】一、六选四阅读1. Complete the following passage by using the sentences given below. Each sentences can be used only once. Note that there are two more sentences than you need.Can just one person make a difference? You bet! In a community every person counts, and getting involved is not difficult. Take stock of your own talents and interests. Don't wait for someone else to act first. Take the initiative! Once you see what you can accomplish, you'll want to keep going.Here are just a few ways to make a difference in your community. How many more ways can you come up with?Clean up the community. People often throw litter in places where there is already litter. And the problem only becomes worse until someone gets fed up and does something. Could your neighborhood use a cleanup? Neighborhood cleanups are often sponsored by local businesses or schools. But if your community doesn't have a cleanup program, get together with friends to organize one. You could pick up garbage in a larger area twice a year, or you could clean a smaller area every few months.Include the isolated. Do you know anyone who is housebound? Almost all neighborhoods have a few people who have to stay at their homes. These people are often elderly and unable to leave their homes to perform simple tasks. By letting them "borrow" your legs and eyes, you can make them feel included. You can run errands for them like shopping or paying bills. They might like you to read to them if their eyesight is failing. Governments provide some of the services these people need, but programs cannot give them friendship; that's what communities are for!Reading clubs are popular all over Europe and North America. Members might read at home to prepare for discussion, or they might read aloud to each other and talk about what they just read. Either way, a book or article can spark lively discussion and this often challenges people to take action.A. Cleaning your community will have a positive effect on others in society.B. They find a need or an issue you really care about.C. But they belong to the community, too.D. Living in a clean neighborhood will be its own reward.E. Don't hesitate to take part in the community's activity.F. Round up some readers.二、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
高三限时阅读训练3精选
高三限时阅读训练3一、完形填空（共20 小题；每小题1分；满分20分）One winter morning, I bought a copy of The New York World and turned its pages until I got The Help Wanted Unskilled section. A small advertisement held my __ 36 . It read, “Easy job. Good wages. No experience 37_ .” It sounded like the job I was _ 38 . Easy job. Good Wages. Those four words 39__ now and then in my brain as I was traveling to the address indicated in the 40__ . Easy job. Good wages. Easy job. Good Wages. Easy...When I got to the place, I saw a series of large 41_ half filled with water. Out of them stuck the necks of many bottles of various 42__ and shapes. There were a number of workers sitting on small wooden benches43_ these basins. All had their 44_ in the water of the basin, the left hand holding a 45_ and the thumb nail （指甲）of the right hand _46 the labels（标签）on it.I sat down on a 47 _ beside one of the basins and started to work on one bottle. As the minutes went by, I noticed that the 48 _ of the water started to __ 49 from my hand to my body. But 50 __ still, the thumb of my right hand was __51 by the minute into a full-blown tomato-colored finger. A numb（麻木）pain began to be felt __ 52 from my right thumb. Then I began to feel as if the pa, I told the manager I’d 53__ . He figured that I had __ 54 69 cents at 23 cents an hour.With the money, I left the working place. “Easy job. Good wages...” came to my brain again. Looking at my hands, I 55 myself, “Can easy job get good wages?” I will remember this experience forever.36. A. eyes B. attention C. decision D. tongue37. A. necessary B. forgettable C. practical D. obvious38. A. running after B. looking for C. heading for D. looking after39. A. lived B. moved C. flashed D. attacked40. A. letter B. sign C. advertisement D. post41. A. baskets B. bowls C. pots D. basins42. A. weights B. sizes C. qualities D. depths43. A. In B. Above C. Under D. Around44. A. arms B. hands C. legs D. feet45. A. knife B. cloth C. bottleD. brush46. A. painting B. showing C. touching D. removing47. A. chair B. bench C. stoneD. sofa48. A. smell B. coldness C. colorD. steam49. A. spread B. recover C. recycle D. cover50. A. worse B. better C. moreD. easier51. A. going B. researching C. growing D. running52. A. now and then B. here and there C. one by one D. little by little53. A. adapt B. argue C. bargain D. quit54. A. taken B. offered C. earned D. created55. A. forgave B. asked C. foundD. hated二、阅读理解(A)Everyone looks forward to progress, whether in one’s personal life or in the g eneral society. Progress indicates a person’s ability to change the way he is living at the moment. Progress must lead to a better life and a better way of doing things. All these, however, remain true only in so far as people want to accept technology and move forward by finding new and more efficient ways of doing things.However, at the back of the minds of many people, especially those who miss the “good old days”, , people are able to contact one another no matter where they are and at whatever time they wish to. gadgets, such as mobile phones and iPads, people often do not take the effect to visit one another personally. A personal visit carries with it the additional feature of having to be in the person’s presence for as long as the visit lasts. We cannot unnecessarily excuse ourselves or turn the other person off.ucts. For example, many handcrafts(手工艺品) are now produced in a factory. Although this means that supply is better able to increase demand, now that the supply is quick and efficient, the demand might fall because mass production lowers the quality of the handicraft and it is difficult to find unique designs on each item.It is people’s attitude towards progress that causes the type of influence that technology has on society. Technology i s flexible. There is no fixed way of making use of it. Everything depends on people’s attitude. The worst effects of progress will fall on those who are unable to rethink their attitudes and views of society. When we accept progress and adapt it to suit ou r needs, a new “past” is created.56.According to Paragraph 1, progress can benefit people when they are willing to _______.A. live a better lifeB. look for better methodsC. change ways of livingD. accept technology and advance steadily57. The underlined word “gadgets” is closest in meaning to _______.A. toolsB. messagesC. barriersD. skills58A. lack great accuracyB. lack the personal touch59. What can be learned about technology from Paragraph 4?A. It can destroy old traditions.B. It can lead to social progress.C. It can be used to correct mistakes.D. It can be used to preserve old products.(B)Pride and Prejudice for the Modern WomanLet us imagine how Pride and Prejudice, Jane Austen's most famous work, might be updated, 200 years on. Austen's popularity is rooted in her intelligence. But today she would certainly have had a very different life, as would her characters. Here's my own suggestion. .It is a truth finally and universally acknowledged that a single woman with brains deserves to have equal opportunities to men, however disadvantaged she may feel by sexism." My dear husband," said his hopeful wife one day, " have you heard that the local store, standing empty for so long, is taken over by a bright young businesswoman?"Her dull and indifferent (漠不关心的) husband replied that he had not. "But it is, it is," she replied excitedly. Mr Dull-Husband made no reply."Don't you want to know her plans?" she cried with some impatience."Well, clearly you think it ma tters to your silly little head. .. so I'd better listen. ""Well, my dear, the rumour (传言) is that she has already set up a string of successful businesses in northern England, though how a woman can know anything about that is beyond me. She will move in herself next month. " "What is her name?" "Bingley. ""Is she married or single?""My dear love; those lazy boys need something to wake them up. There are bound to be jobs going. ""Is that her point in settling here? Surely as a woman she has simply taken a fancy to the place. ""Nonsense, my love, how little you've noticed the world has changed. She's got a first-rate degree and some sort of business qualification, I'm told. She surely needs one of our boys! Perhaps you might give her a call. ""Me? No. Perhaps you can take an interest. You still have your looks, after all. She may even offer you a job. ""Oh, that's not likely. These new chances belong to the younger generation. But now you mention it, I think I'll go along all the same. "... It would rem(年限) among the city's business leaders shorter than theirs. Still, she'd no doubt have enjoyed Davos—and might even have hobnobbed (攀谈) with influential figures.60. Which of the following is TRUE according to the passage?A. Austen was born 200 years ago.B. Austen rewrote Pride and Prejudice.C. Austen's success lies in her wisdom.D. Austen's updated work gains popularity.61. The underlined part in the passage suggests that Mrs Bennet ____.A. had mixed feelings of admiration and surprise about BingleyB. felt kind of worried and doubtful about BingleyC. was extremely anxious to meet BingleyD. had a great curiosity about Bingley62. In the eyes of Mrs. Bennet, Bingley surely needed one of their boys to ____.A. get married toB. work for herC. help her move inD. take over her store63. What does the writer intend to tell us?A. Women with brains can also be as successful as men.B. Women have to pay a high price for success.C.A judgment must be made free from prejudice.D. Sex discrimination still exists nowadays.三、任务型阅读Green is not always referring to the color. In some cases, it is the term used for being environmentally friendly. If you’ve been looking to replace your furniture, consider going green because environmentally friendly furniture offers many benefits. Here are a few tips to get you started on your hunt for the perfect eco-friendly furniture.First, environmentally friendly furniture isn’t harmful to your health. Also its manufacturing process doesn’t cause damage to the environment in any way. Besides, by purchasing eco-friendly products, you prevent deforestation and global warming to some extent in your own way. You do your part in protecting the environment. Environmentally friendly furniture is cost-effective as well.The materials that are used in furniture are what make them green. Materials can be good for the environment either because they are materials that are considered renewable resources or they are all natural. A lack of chemicals and toxins in green furniture also means it is a better choice for the environment. It may be hard to imagine that a sofa or a table could actually be a green product but they really can be depending on what they’re made of.There are a lot of renewable sources that manufacturers could use when building the furniture, so you should be keeping an eye out for them. Bamboo can be an excellent replacement for wood and can also replace plastics and metals in some furnishing. Cotton is a soft fabric that is safe for the environment and it can be replenished(补充) often. Hemp is also a renewable source that can be used for fabric and twine.Recycled materials also can be made into green furniture. Metals can be recovered and remade into new things such as frames and foundations for sofas. Recycled plastic can also be made into furniture such as tables and chairs. Touching up old furniture instead of buying new items is very cheap way to be green. Yard sales and second-hand stores sell furniture too and buying the used means new things won’t be made, so no more damage has to happen to the earth.Therefore, when you want to hunt for the perfect environmentally friendly furniture, you should try to know the type of materials which are used in building the furniture.BABCC41—45DBDBC46—50DBBAA51—55 CDDCB阅读DABD CABD任务型阅读(71) Benefits/Advantages (72) harmless/beneficial (73) avoids (74) save (75) contain/have(76) replace (77) reused/recycled/used (78) like (79) second-hand/used/old(80) better/necessary/important/vital/essential。
2023届高三英语晚自习限时训练(含答案)
2023届高三英语晚自习限时训练一、阅读理解AParis is the most wooded city in Europe, and around one quarter of its area is taken up by parks, gardens and other green spaces.Jardin des Plantes: over 28 hectaresThis impressive botanical garden is home to four museums, including the Natural History Museum, which houses a variety of African animals. The gardens themselves boast thousands of species of plants. This is a lovely place to relax and explore the beautiful surroundings.Parc des Buttes-Chaumont: over 24 hectaresIf you want to get off the tourist trail and hang out with true Parisians, this park is the perfect spot for a relaxing picnic or a leisurely wander. It is in the 19th district and is one of the largest parks in Paris. Cross its lake on the suspension bridge, or admire the waterfalls and attractive temples.Jardin du Luxembourg: over 25 hectaresThese beautiful gardens were first laid out in 1612 as the gardens of the Luxembourg Palace. They include a geometric forest, French and English style gardens, as well as a large pond. There is so much to see and do with activities especially for children, such as slides, rides and puppet shows, as well as leisure and sporting activities for adults. The gardens are home to more than one hundred sculptures.Le Parc de la Villette: 55 hectaresThis urban cultural park is so much more than just a park as it is home to numerous music venues, exhibition spaces and cafes. It is also home to no less than 12 gardens, which all follow different themes. The Passenger Gardens, for example, which are built on what was once the sheep market, support a variety of ecosystems, demonstrating the importance of biodiversity.1. Which green space probably suits students who are interested in botany?A．Jardin des Plantes. B．Parc des Buttes-Chaumont.C．Jardin du Luxembourg. D．Le Parc de la Villette.2. Which is special about Jardin du Luxembourg?A．They used to be royal gardens. B．They are Parisian favourite gardens. C．They feature American style gardens. D．They house a variely of African animals.3. What can visitors do in Le Parc de la Villette?A．Visiting museums. B．Attending concerts.C．Admiring waterfalls. D．Watching puppet shows.BA team of researchers at ETH Zurich has the perfect long-lasting solution to our fog problem. They have developed a very thin and gold-based transparent coating (涂层) that can convert sunlight into heat, which can be applied to glass and other surfaces to prevent them from fogging.The special coating is developed using titanium oxide and gold particles. It selectively absorbs infrared radiations (红外线照射) from the sunlight and creates a heating effect that is powerful enough to keep fog away from the surface of an object.The coating basically employs heat to stop fogging. The coating absorbs a large part of the infrared radiation, which causes it to heat up-by up to 8℃.Previously, products like anti-fogging sprays create a very thin film of water on the surface to remove fog. The problem with such surfaces is pollution. Along with water, the sprays also attract dirt, dust, oil, and various other dirty substances, and just a little dirt on the surface makes it useless. However, the new coating repels (排斥) water. Furthermore, the coating is significantly thinner, which makes it more transparent as well as flexible. It is heated passively and requires, during daytime, no additional energy source.Gold might be expensive, but the researchers stress that their coating requires solittle that the material costs remain low. Their coating is produced with standardized and readily scalable methods, all cost-effectively. However, although this product can work at very low levels of solar irradiation, it does rely on a certain amount of light.The researchers will develop the coating further for other applications. In the process, they will examine whether other metals work just as well as gold. There is no need to fear. However, this would cause a car or a building to heat up more in the summer. The researchers have already filed a patent. Hopefully, this groundbreaking product will soon be available on the market.；4. How does the new coating work to remove fog?A．By reflecting part of sunlight selectively.B．By keeping cool air away from the object.C．By creating a thin film of water on the surface.D．By absorbing infrared radiations to heat the coating.；5. Why does the author mention previous anti-fogging products?A．To stress the advantages of the new coating.B．To introduce the inspiration behind the new coating.C．To prove the difficulty of creating anti-fogging products.D．To explain the reason for the anti-fogging coating being popular .；6. What is the limitation of the new coating?A．It is considerably expensive.B．It depends on sunlight to work.C．It takes too much time to produce.D．It is difficult to clean and maintain.；7. What do the researchers plan to do next?A．Apply for a patent for the invention.B．Develop the product for more practical uses.C．Explore the environmental impact of the coating.D．Seek a cheaper material as an alternative to gold.CAn exhibition of vivid photographs and a restored documentary give fresh insight into the Antarctic explorer, who died a century ago.One hundred years ago, the leader of the last great expeditio n of the heroic age of polar exploration died from a heart attack as his ship, Quest, headed for Antarctica. The announcement of the death of Ernest Shackleton on 30 January 1922 was greeted with an outpouring of national grief.This was the man, after all, who had saved the entire crew of his ship Endurance —which had been crushed and sunk by ice in 1915 — by making a daring trip in a tiny open boat over 750 miles of polar sea to raise the alarm at a whaling station in South Georgia.It remains one of the greatest rescue stories of modern history and led to the idolising of Shackleton in the United Kingdom, a reputation that survived undamaged for the rest of the century. As his contemporary Raymond Priestley, the geologist and Antarctic explorer, later put it: “When disaster strikes and all hope is gone, get down on your knees and pray for Shackleton.”And here and now in 2022, his death is being marked with an elaborately illustrated exhibition —Shackleton’s legacy and the power of early Antarctic pho tography — which opens at the Royal Geographical Society (RGS), and which includes a range of images and artefacts from his expeditions. Additionally, a digitally remade version of South, a documentary film of Shackleton’s 1914-16 Endurance expedition, is being screened at the British Film Institute.The film and most of the exhibition’s finest images are the handiwork of Frank Hurley, who sailed with Shackleton and who was one of the 20th century’s greatest photographers and film-makers. Both film and exhibition feature striking camera work and provide vivid accounts of the hardships that Shackleton and his men endured as they headed off to explore Antarctica.Even after he survived the great expedition, he still longed for another trip to Antarctica, and after long negotiations set sail in Quest, from England, with the aim of circumnavigating (环航) Antarctica, Shackleton was by now very ill and had suffered at least one heart attack. On 2 January 1922, he wrote in his diary: “I grow old and tired but must a lways lead on.” Three days later he had a major heart attack and died a few hours later. He is buried on South Georgia, scene of his greatest triumph.“Shackleton was an inspirational leader. He had an innate sense of what was possible and achievable. He also had a huge personality but led by example. At the same time, he was sensitive to the needs of the individuals he was leading. For example, after Endurance broke up, his men had lost their protection and shelter. Their social fabric had been destroyed. There would have been disagreement. Yet Shackleton succeeded in keeping them together and made sure they survived.”8. People were overcome with grief when Ernest Shackleton died because .A．it was a huge pity that such a brave explorer should ha ve died from a heart attack B．he was the man that wrote about one of the greatest rescue stories of modern history C．he came to his entire crew’s rescue and symbolised hope in extreme circumstances D．there was no one to pray to anymore when disaster came and there was no hope9. What can we learn about the exhibition?A．It presents Shackleton’s 1914-16 Endurance expedition with powerful Antarctic photos.B．It celebrates the 100th anniversary of the great explorer Ernest Shackleton’s birth. C．It consists of vivid photographs, artefacts, and documentaries of Ernest Shackleton.D．It is created by Frank Hurley, who witnessed Shackleton’s heroic acts with his own eyes.10. Which of the following is NOT true about Ernest Shackleton according to the passage? A．He was the leader of a heroic exploration to the South pole, who died from a heart attack off shore.B．He saved the crew members of the sunken Endurance by travelling to raise the alarmin a tiny boat.C．He is universally recognised as the greatest Antarctic explorer who has enjoyed enduring fame.D．He was inspirational, practical, responsible, sensitive towards his men, but had a strong character.11. What does “Their social fabric had been destroyed. ” in the last paragraph most probably mean?A．What they wore would not be accepted by others upon returning.B．They could no longer socialise with others even if they went back.C．The ship could not keep them together even if they survived.D．They could not function socially as they had when there was shelter.二、七选五阅读Do you want lots of success in school and in your friendship? If you want to learn how to balance your friendship and study, read on.• Talk about your goals for school.Share what academic success looks like for both of you. 12 Before the semester starts, sit down and discuss what you’d both like to achieve.• Share tips and tricks with each other.Exchange study techniques to learn how to be more successful. Maybe you know some learning methods like making a list of key ideas and reviewing them one hour a day. Chat about how you’ll both try to master your subjects. 13• Remind each other to take your health seriously.Put your wellness above everything else to succeed in school. 14 Get at least 8 hours of rest. Make sure to eat nutritious meals that will keep you energized. When you take care of yourselves, you’ll both reduce stress and improve your academic performances.• 15Remember that you both can overcome any challenge s with enough effort. In orderto get the most out of your studies, keep a “growth mindset”, an optimistic outlook that lets you see any difficult topic or task as an opportunity to learn.• Prioritize (优先安排) exams and finals.16 When you and your friend are in the middle of a finals week or have a huge assignment to prepare for, that should come first. Block out times on your schedules that need all your focus.A．Keep positive attitudes about school.B．Fight for any challenges enthusiastically.C．Your methods will be always encouraging.D．Give each other space during more intense periods.E．It’s important to be clear about what your goals are.F．You’ll lift each other up and get an extra edge in class.G．So you can both be at your best physically and mentally.三、完型填空When I was 13, I climbed my first mountain near my home. I was overweight thenand 17 when I reached the top. But I loved the 18 .Two years ago, my friend Mel Olsen and I drove to Oregon to climb 11,240-foot Mount Hood.As we went higher, the trail (山路) grew 19 and steeper. At around 9 a.m., we reached an ice step. Confident I was safe, I put my full 20 on it. Suddenly, I heard a 21 , and the ice broke off the step, right under my foot.In a second, I fell backward. Soon, I came to a stop on a flat slope. I 22 my whole body, feeling 23 that I was fine, except that I was suffering from a sharp painin my left 24 and couldn’t move.I 25 for help, and immediately Mel and other climbers came to assist me and called Mountain Rescue. Then I was loaded into a(n) 26 and taken to a hospital,27 I stayed for four days. The doctors told me it would be a year before I could 28 again, but I was back on the trails within six months.The fall has made me more 29 . One slip (滑倒) on a mountain can change everything. But the experience also made me 30 as a person. Since the accident, I’ve climbed another 60 mountains. I’m not going to let one fall 31 me from doing my favorite thing.17. A．out of danger B．out of trouble C．out of balance D．out of breath18. A．opportunity B．memory C．challenge D．mountain19. A．wider B．flatter C．narrower D．nearer20. A．body B．strength C．foot D．weight21. A．cry B．crack C．crash D．call22. A．calmed B．looked C．tested D．checked23. A．fortunate B．satisfied C．grateful D．confident24. A．arm B．shoulder C．leg D．eye25. A．yelled B．asked C．begged D．arranged26. A．car B．ambulance C．truck D．shelter27. A．which B．that C．where D．when28. A．jump B．move C．drive D．climb29. A．positive B．cautious C．frightened D．anxious30. A．grow B．develop C．feel D．act31. A．protect B．ban C．addict D．keep四、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
高三英语晚自习限时训练 (1)
高三英语晚自习限时训练一、阅读理解AFun things to do in high schoolLearn another languageYour school might be holding foreign languages classes, so this is a great way to start your language learning journey! If you want more self-paced learning, apps like Duolingo are easily accessible (可使用的) on our mobile phones. As our world becomes more in terconnected, it’s always good to learn another language or two.Aim for a semester (学期) of straight AThis can be a difficult task but not impossible to achieve, as long as you put in the right amount of work and effort. If you are struggling(挣扎)with your grades, you can host or join group studies with your classmates!Don’t be disheartened if you are not able to get an A in a semester. What’s important is having the drive to go forward. As a famous person once said, “He who would climb a ladder must begin at the bottom.Experience another cultureCulture and tradition are something that all humans share. No matter where we come from, we always bring our culture with us. People coming from different cultures may be among your friends or neighbors.You can go to a museum, read a book, or try new food in your area. Remember to keep an open mind and take the time to learn about them.Bring a shareable treat to classIf you know your way around the kitchen, you can impress your class by making and bringing them a delicious treat! Not only will this make their stomachs happy, but you’ll also bond (联系) the whole class together. Just don’t forget to check with your teacher first before bringing one.1. What should you do if you want to learn a language at your own speed?A．Go to a museum to read books. B．Attend another language class. C．Learn it on an app like Duolingo. D．Join group studies with your classmates.2. What’s the key if you can’t get an A in a semester?A．Keeping an open mind. B．Asking your teachers for help. C．Changing your study method. D．Having the drive to go forward.3. What will probably be the result if you bring a treat to class?A．Experiencing different cultures. B．Making your teacher angry and anxious. C．Making some students have a stomachache. D．Making your classmates happy and united.BIn large population studies, people who eat lots of fruits and vegetables high in vitamin C appear to have a reduced risk for various types of cancer, including cancers of the mouth and lung. But it’s not clear that these benefits come specifically from vitamin C．The Age-Related Eye Disease Study found that a daily supplement containing 500 mg of vitamin C can help slow the progress of macular degeneration, an age-related eye disease that causes vision loss. But we don’t know what benefits, if any, are provided by vitamin C in particular.Many people take vitamin C supplements in unnecessarily high doses to prevent or treat various conditions for which its effectiveness is unproved. The vitamin C supplements have variously been said for staving off sunburn and improving the appearance of wrinkles. None of these benefits have been confirmed in scientific studies.Perhaps the best-known and most widely promoted use of high-dose(高剂量)vitamin C is to prevent or treat the common cold. Most of the evidence shows that high-dose vitamin C will, at most, shorten a cold by one day. In ordinary circumstances, vitamin C has no preventive value, although a few studies have reported a 50% reduced risk of developing colds among people taking vitamin C in extreme circumstances-for example, skiers, marathon runners, and soldiers working in extreme conditions.The recommended vitamin C dosage per day for healthy women is 75 mg per day. For adults, the highest safe daily intake is likely to be 2, 000 mg per day. Vitamin C is water-soluble, so any amount more than you need will not be stored in the body. It’s safe in almost any amount from foods, and supplements in recommended amounts are also regarded as safe for most people. In some people, high doses-more than, say, 2, 000 or 3, 000 mg per day-can cause a variety of symptoms. People with kidney conditions should take no more than 1, 000 mg a day.；4. What can we learn about vitamin C in the first paragraph?A．It can be of better effect in higher doses.B．It can be a cure for age-related eye disease.C．It can help slow the progress of some illness.D．It can reduce the risks of the mouth cancer.；5. What function does vitamin C have intreating the common cold?A．It can help people save plenty of money.B．It can stop soldiers from catching a cold.C．It may reduce a cold by one day at most.D．It may prevent the common cold efficiently.；6. How much Vitamin C are healthy women advised to take per day?A．75 mg.B．500 mg.C．2, 000 mg.D．3, 000mg.；7. Where is this text probably taken from?A．An exam paper.B．A travel journal.C．An art guidebook.D．A science magazine.CThis year will have been the warmest in the UK, the Met Office has said. Although for many people the record from the year that attracted the most attention was that the summer heatwave reached 40. 3℃, the organization said that more significant was a figure 30 degrees lower-the average temperature over the course of the year.Although the exact temperature will need to be confirmed in the new year, the Met Office predicted that 2022 is going to exceed (超过)the previous record for the warmest annual average, which was 9. 88C in 2014. Apart from this month, every other month in the UK in 2022 was warmer than average. New Ye ar’s Day 2022 was the warmest on record, exceeding 16℃ in North Wales. Dr. Mark McCarthy, head of the National Climate Information Centre, said: “While many people will remember the summer’s extreme heat, what hurts people most, especially the elderly, this year is the relatively consistent heat through the year. ” Although this summer was the fourth warmest on record, it was the first in which the temperature exceeded 40℃.McCarthy said that we can expect to see increasingly warmer summers as a consequenc e of climate change. “The warm year is in line with the impacts we expect as a result of human-related climate change, ”he said. “Although it doesn’t mean every year will be the warmest on record, climate change continues to increase the chances of increas ingly warm years over the coming decades. ”Rebecca Newsom, head of politics at Greenpeace UK, said: “These aren’t the kind of records you want to be breaking. Record-breaking investment in the renewable technologies will get us out of this mess.At present though, Britain is ready for rain, with forecasters warning of difficult driving conditions caused by wet weather over the next few days. Although temperatures will stay mild for much of the UK, the Met Office warned that the rainfall will hit England and Wales this Saturday and Sunday.；8. What will make this year special in the UK?A．The most visitors will be attracted.B．The warmest year will take place.C．The biggest success will be achieved.D．The highest temperature will be 30℃.；9. What can be inferred from Paragraph 2?A．Every month in the UK was warmer than average.B．Next summer may be the first summer to exceed 40℃.C．Many elderly men may go to hospital for the high heat.D．New Year’s Day was the warmest on record in England.；10. What does Rebecca think of the future climate?A．Renewable energies can fight climate change well.B．Record of high temperature will be broken next year.C．Politicians should be responsible for the current mess.D．Warm summers are a consequence of human activities.；11. What is the weather like in Wales this weekend?A．Sunny.B．Snowy.C．Cloudy.D．Rainy.二、七选五阅读Since I’ve been living abroad, many different people have asked me to name typical British dishes. I have, however, struggled to think of an answer. Yes, we do have our own national dishes. 12Fish and chips, as you could guess, is made up of battered fish and chips. It is often accompanied by mushy peas (豌豆糊), which consists of peas mashed up to form a thick paste. The majority of British people really do love this dish but it is not something that we would eat, say, on a weekly basis. 13 British people associate this dish with the seaside and it’s something that will usually be eaten on a day trip there.14 This is made up of roast meat, usually chicken or beef, accompanied by roast vegetables and a meat sauce. It is usually eaten on a Sunday, perhaps for a special family dinner.Although we do have our traditional dishes, we do not eat these on a daily basis. On a daily basis many British people will eat rice or pasta dished. 15 You can see this by looking at the range of international foods in the supermarket or at the va riety of different restaurants you can find on our high streets.16 However, perhaps unlike other countries, we tend to prefer to cook recipes influenced by other cuisine.A．We eat them as the seasons change.B．But how much do we actually eat them?C．In conclusion, we do have our national dishes.D．Another favourite British dish is the roast dinner.E．Our diet has been greatly influenced by other countries.F．It’s also not usually something that you would cook at home.G．You’ll be served a traditional dish if you get invited for dinner at a British family’s home.三、完形填空The public library is one of the greatest inventions humankind has ever imagined and actually made happen. Libraries are a (an) 17 , quiet place where all people can hang out and read, without having to 18 anyone anything. Apart from being a place that is full of 19 to borrow, libraries are something that offers 20 and warmth. A post on Twitter celebrating the wonderfulness of libraries 21 this point perfectly.“Today a woman with developmental disabilities came into the library, and she was 22 ,” wrote a Twitter user. “She didn’t 23 her address, but her phone number was in her pocket on a piece of paper with Elmo on it. She kept saying, ‘The library is a safe place.’We called and her guardians (监护人) came right over. It seemed that they were not worried at all. Apparently this happens pretty 24 . They even stayed long enough for her to 25 some new books and Sesame Street DVDs. The library is a safe place indeed.”The post 26 others to share their own stories of libraries being safe places for them, and it’s enough to 27 even the hardest of hearts. For people who grew up in dysfunctional (功能失调的) homes, the library can be a safe heaven of calm and kindness. For people lacking financial means, the library is a space that provides free education and free entertainment, as well as a free indoor place to go. This is the reason why 28 people grouped to libraries when they have nowhere else on earth---the only place that doesn’t 29 money. We cannot understate Literal lifesavers. Libraries also fill up a lot of gaps in other social 30 and help people find their way to information about other opportunities. They open the doors to so many 31 .17. A．calm B．noisy C．nervous D．amusing18. A．ask B．pay C．afford D．beg19. A．supplies B．stationery C．books D．cafeterias20. A．support B．assistance C．shelter D．safety21. A．declared B．explained C．tackled D．discovered22. A．trapped B．lost C．anxious D．delighted23. A．know B．search C．conceive D．cover24. A．exactly B．accurately C．regularly D．fluently25. A．work out B．come out C．bring out D．check out26. A．spread B．inspired C．impressed D．contacted27. A．bother B．surprise C．fund D．warm28. A．heartbroken B．homeless C．hopeless D．elderly29. A．require B．quit C．recommend D．spend30. A．research B．communities C．services D．designs31. A．memories B．problems C．advertisements D．possibilities四、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式When I was in the middle school, I founded a student club 32 (name) “green planet” inspired by Chai Jing’s documentary Under the Dome. At first people knew this club. As a result, we had only 15 members. And I 33 (laugh) at for being crazy. However, I didn’t lose heart and I insisted. Every day, we club y members broadcast weather reports and PM 2.5 levels. We then published articles and pictures of theserious 34 (pollute) of the city on the school website. Meanwhile, my club also shares suggestions 35 how to live a low carbon life on the school board, for example: take public transportation or car pool to school; do 36 (little) shopping and so on.37 time went by, more are what students showed great interest in our club.And luckily, I persuaded my headmaster to join us. After what seemed ages of waiting, the club was finally accepted by the majority of students in my school. An increasing number of students supported 38 (ours).Since then, we’re worked together 39 (promote) our club. And up to now, 85% of the students 40 (join) us and enjoyed the simple but eco-friendly life.Such is Joy, 41 responsible and persistent girl.五、应用文写作42. If you’re Li Hua. I’m going to plant trees by the river with my classmates this weekend. Please write an email to Nancy and invite her to join us.Contents include: 1. Gathering time and place;2. Activity arrangement and reminder;3. Lunch and return time.Limitations: 1. The number of words is about 100. 2. You can add appropriate details to make your writing coherent.参考答案1. C2. D3. D4. C5. C6. A7. D8. B 9. C 10. A 11. D12. B 13. F 14. D 15. E 16. C17. A 18. B 19. C 20. D 21. B 22. B 23. A 24. C 25. D 26. B27. D 28. B 29. A 30. C 31. D32. named33. was laughed34. pollution35. on/about36. less37. As38. us39. to promote40. have joined41. a42. Dear Nancy,My classmates and I are planning to plant trees by the river this weekend. We all hope you can join us. Here is the schedule.We are to meet at the school gate at 8 o'clock this Saturday morning. Since we'll cycle there and work in the field, you'd better wear casual clothes and comfortable shoes. It would be much better if you could bring some necessary tools. Besides, we'll have a picnic there. Everyone is expected to bring their lunch and share it. Maybe we will return at around 3 o'clock in the afternoon.Would you like to join us? Hope to see you then.Yours,Li Hua。
浙江省绍兴市第一中学2023届高三下学期4月限时训练数学试题
12．已知 x1, x2 是函数 f (x)
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m 元），且 P(1 1) =0.6827；引入云计算后，单件产品尺寸与标准品尺寸的误差 ~ N(0, 1 ) .若保持单件产品的成本不变，则 P(1 1) 将会变成多少？若保持产品质
高三物理选择题限时训练10套
选择题限时训练（1）1、如图，墙上有两个钉子a 和b ，它们的连线与水平方向的夹角为45°，两者的高度差为l 。
一条不可伸长的轻质细绳一端固定于a 点，另一端跨过光滑钉子b 悬挂一质量为m 1的重物。
在绳子距a 端2l 得c 点有一固定绳圈。
若绳圈上悬挂质量为m 2的钩码，平衡后绳的ac 段正好水平（如图虚线所示），则重物和钩码的质量比12m m 为（ ） A.5 B. 52C. 2D.2 2、如图所示，绷紧的水平传送带始终以恒定速率1v 运行。
初速度大小为2v 的小物块从与传送带等高的光滑水平地面上的A 处滑上传送带。
若从小物块滑上传送带开始计时，小物块在传送带上运动的t v -图像（以地面为参考系）如图乙所示。
已知12v v >，则（ ）A. t 2时刻，小物块离A 处的距离达到最大B. t 2时刻，小物块相对传送带滑动的距离达到最大C. 0~ t 2时间内，小物块受到的摩擦力方向先向右后向左D. 0~ t 3时间内，小物块始终受到大小不变的摩擦力作用3、我国和欧盟合作正式启动伽利略卫星导航定位系统计划，这将结束美国全球卫星定位系统（GPS ）一统天下的局面。
据悉，“伽利略”卫星定位系统将由30颗轨道卫星组成，卫星的轨道高度为2.4×104km ，倾角为560，分布在3个轨道面上，每个轨道面部署9颗工作卫星和1颗在轨备份卫星，当某颗工作卫星出现故障时可及时顶替工作。
若某颗替补卫星处在略低于工作卫星的轨道上，则这颗卫星的周期、速度、加速度和角速度与工作卫星相比较，以下说法中正确的是（ ）A ．替补卫星的周期大于工作卫星的周期，速度大于工作卫星的速度B ．替补卫星的周期大于工作卫星的周期，速度小于工作卫星的速度C ．替补卫星的加速度大于工作卫星的加速度，角速度大于工作卫星的角速度D ．替补卫星的加速度小于工作卫星的加速度，角速度小于工作卫星的角速度4．如图示，空间存在着一簇关于y 轴对称电场线，O 是坐标原点，M 、N 、P 、Q 是以O为圆心的一个圆周上的四个点，其中M 、N 在y 轴上，Q 点在x 轴上，则（ ）A ．OM 间的电势差大于NO 间的电势差B ．M 点的电势比P 点的电势高C ．一正电荷在O 点时的电势能等于在Q 点时的电势能D ．将一负电荷由M 点移到P 点，电场力做正功x y M NO P Q v v 2 v 1 -v 1 v 2 t 1 t 3 t 2 t 甲乙 A5、在匀强磁场中，一矩形金属线框绕与磁感线垂直的转轴匀速转动，如图1所示。
江苏省西亭高级中学高三物理11月份限时训练卷
江苏省西亭高级中学11月份高三限时训练物理试卷命题人：季志锋校对人：张俊第I卷〔选择题，共48分〕一．选择题〔此题包括9小题，1－5题只有一个正确答案，每一小题3分；6－9题有多个正确答案，每一小题4分选全得4分、漏选得2分、错选或不选得0分，共31分〕1．如下列图，在倾角为θ的固定光滑斜面上，质量为m的物体受外力F1和F2的作用，F1方向水平向右，F2方向竖直向上。
假设物体静止在斜面上，如此如下关系正确的答案是〔〕A．F1sinθ＋F2cosθ＝mg sinθ，F2≤mgB．F1cosθ＋F2sinθ＝mg sinθ，F2≤mgC．F1sinθ－F2cosθ＝mg sinθ，F2≤mgD．F1cosθ－F2sinθ＝mg sinθ，F2≤mg2．“龟兔赛跑〞的故事可为家喻户晓，也是一个富有哲理的寓言故事，如下列图为“龟兔赛跑〞中的乌龟和兔子在时间t0内的位移－时间图像，如此下面说法正确的答案是〔〕A．乌龟与兔子同时出发，但乌龟在前兔子在后B．在比赛过程中，兔子和乌龟均作匀速直线运动C．在时刻t0乌龟和兔子的位移相等；D．在比赛的过程中，乌龟和兔子总共相遇了2次。
3．物体A、B、C均静止在同一水平面上，它们的质量分别为m A、m B、m C，与水平面的动摩擦因数分别为μA、μB、μC，用平行于水平面的拉力F分别拉物体A、B、C，所得加速度a与拉力F的关系图线如下列图，A、B两直线平行，如此以下正确的答案是〔〕A．μA=μB=μC B．μA＜μB=μCC．m A＜m B＜m C D．m A＜m B=m C4．我国要发射的“嫦娥一号〞探月卫星简化后的路线示意图如下列图。
卫星由地面发射后，经过发射轨道进入停泊轨道，然后在停泊轨道经过调速后进入地月转移轨道，再次调速后进人工作轨道，卫星开始对月球进展探测。
地球与月球的质量之比为a，卫星的停泊轨道与工作轨道的半径之比为b，卫星在停泊轨道〔可视为近地卫星轨道〕和工作轨道上均可视为做匀速圆周运动，如此〔〕A．卫星在停泊轨道和工作轨道运行的速度之比为a bB ．卫星在停泊轨道和工作轨道运行的周期之比为b a C ．卫星在停泊轨道运行的速度大于地球的第一宇宙速度D ．卫星在停泊轨道运行的速度小于地球赤道上物体运动的速度5．民族运动会上有一个骑射项目，运动员骑在奔驶的马背上，弯弓放箭射击侧向的固定目标。
2023届高三英语晚自习限时训练
2023届高三英语晚自习限时训练【3月30日晚，限时：不超过65-70分钟】一、阅读理解（一）Located in the tropical forests in Xishuangbanna, southwest China’s Yunnan province, the Asian Elephant Breeding and Rescue Center (AEBRC) is dedicated to giving careful and effective protection to wild elephants.Though the jungles provide rich sources of food and water for the elephants, they can also pose a threat to them if they become ill or injured, making it difficult for them to survive in the wild.In August 2015, a baby elephant that was less than one month old was abandoned by her herd at the d oorway of a farmer’s house in Simiao, Pu’er city. Vets from the AEBRC came and took the animal to their center for treatment. She was found to have intra-abdominal infections and heart failure. She was also at risk of blood poisoning.The baby elephant finally recovered after proper treatment by the keepers at the center. However, without the presence of her mother, she became malnourished (营养不良) due to a lack of breast milk. At that time, she weighed only 76 kilograms, much smaller than an average newborn elephant. The vets decided to feed her goat milk, and as she was born in the Chinese Year of the Goat, the elephant was named Yang Niu (“Yang” is Chinese for goat, and Niu means girl). The elephant is now about 6 years old, 1.8 meters tall and weighs 1.3 tonnes.Currently, there are 11 rescued Asian elephants living at the center and being cared for by 27 keepers, who spend more than 10 hours with them each day. Thanks to these efforts, the population of Asian wild elephants in the province has reached 300 from 150 over the past 30 years.The local government has designated (指派) a place as a source of food for the elephants so that they do less damage to villagers’ crops while looking for food. They’ve also monitored the elephants using technologies such as drones to keep track of their activities and prevent encounters between villagers and the elephants. The local government has also purchased commercial insurance for residents to compensate them if the elephants attack them.；1. What can be a threat to elephants’ survival according to the text?A．Lack of food sources. B．Illegal hunting.C．Physical problems. D．Destruction of forests.；2. What does the example of a baby elephant stress?A．The recovery of Yang Niu.B．The efforts made by keepers.C．The risks facing baby elephants.D．The importance of mother elephants.；3. What does the author mainly talk about in Paragraph 5?A．The number of elephants endangered.B．The urgency of rescuing wild elephants.C．A steady growth of elephant population.D．A rising trend of animal overprotection.；4. Why has the government designated a place for elephants?A．To keep track of their activities.B．To prevent them from damaging crops.C．To save them the trouble of looking for food.D．To ensure the growth of the elephant population.（二）No one can resist the temptation (诱惑) of snacks. But at the same time, you may be underestimating how many calories a snack contains. What would happen if you had a bag of crisps (炸薯片) a day? Eating an extra packet of crisps a day could lead to a weight gain of 6. 35 kg after a year, The Times reported.People underestimate the number of calories in their snacks, with experts warning that eating a bag of crisps every day could lead to a stone of weight gain in a year. A survey of around 2 ,000 adults found that about three quarters underestimated the impact of what a small reduction could have. One in ten believed that cutting 200 calories a day would not affect weight. At the same time, many people didn’t seem to know exactly how many calories were in their snacks. When it came to snacks, people struggled, with 95 percent guessing that half a sharing bag of tortilla chips had 214 calories on average, almost half the true figure of 447.Can’t we resist buying snacks? The food environment is to blame. Even though we all know snacking is bad for our health, we can’t help but fill our shopping carts with snacks.Don’t always blame yourself for poor self- control, and supermarket shelves also have to carry this “pot” half.Hugo Harper, head of Nesta’s health team, said the pressure to resist high-calorie snacks should not be put on consumers and that our food environment needed. to be changed, He said,“Our environment has a real impact on what we eat, from advertisements and supermarket promotions to what ‘s available in our local corner shops.Hugo added,“If we had fewer cues to snacks, or were pushed to buy fewer high calorie snacks, we should be able to see real change.”New rules coming into force next month will restrict promotions on foods high in fat, sugar and salt in big shops.；5. What does the author intend to do in paragraph 1?A．List some reasons. B．Introduce the topic.C．Put up an argument. D．Raise a question.；6. What can we know from the survey?A．One in ten people cut 200 calories a day.B．Many people knew how many snacks they ate.C．No one knew the calories the snacks contained.D．Most people lacked the awareness of snacks’ impact.；7. What may cause people to buy more snacks according to the text?A．The food environment. B．Living conditions. C．Consumption ability. D．Supermarket management.；8. Which of the following may be the best title for the text?A．A packet of crisps contains many caloriesB．People can resist the temptation of snacksC．The harm of snacks is beyond your imaginationD．2,000 adults got involved in a consumption survey二、七选五阅读Have you had a talk with someone, and think you are paying attention to him or her, only to realize shortly afterwards that you can’t remember what he said? Oh, perhaps you fail to focus while he is speaking and miss the message that he is trying to deliver. 9 : TVs, radios, traffic noises, telephones, laptops and so on which can make it difficult to listen with our full attention.But how can we listen more effectively? 10 . Professor Jon Kabat-Zinn said, “It’s time for mindful listening to come in. Mindfulness means paying attention in a particular way, with a purpose, at the present moment and non-judgmentally.”11 ? Jon Kabat-Zinn describes three key elements of mindful listening that we can use to improve our listening skills.First of all, be present. When we listen mindfully, our focus should be on the person we are listening to without distractions. 12 . By doing so, we can understand a situation from someone else’s point of view. After all, we often see the world through our own experiences. Finally, listen to our own cues. Our cues are the thoughts, feelings and physical reactions that we have when we feel anxious or angry, and they can hold back ideas and perspe ctives that we’re uncomfortable with. Mindful listening can help us to be more aware of our cues. 13 .In conclusion, the rule is straightforward: simply “Listen”! Listen carefully and attentively. Pay full attention to the other person, and don’t l et other thoughts, like what we are going to say next, distract us.A．Then think in others’ shoesB．Researchers seem to have got itC．How can we deal with mindful listeningD．Modem life is actually full of distractionsE．But how can we apply mindful listening to our lifeF．Next, reflect on the experience you’ve gone throughG．Besides, it allows us to choose not to let them ruin communication三、语法填空阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
高三三轮必修二限时训练
限时训练二（必修二）1．列关于人类探索遗传奥秘历程中的科学实验方法及技术的叙述，错误的是( )A．孟德尔在研究豌豆杂交实验时，运用了假说—演绎法B．萨顿根据基因和染色体的行为存在平行关系，类比推理出基因位于染色体上C．赫尔希和蔡斯利用肺炎双球菌研究遗传物质时，运用了放射性同位素标记法D．沃森和克里克研究DNA分子结构时，运用了建构物理模型的方法2.如图中m、n、l表示哺乳动物一条染色体上相邻的三个基因，a，b为基因间的间隔序列．相关叙述正确的是（）A．一个细胞中，m、n、l要么同时表达，要么同时关闭B．若m中缺失一个碱基对，则n、l控制合成的肽链结构会发生变化C．a、b段的基本组成单位是氨基酸和脱氧核苷酸D．不同人a、b段包含的信息可能不同，可作为身份识别的依据之一3. 有甲、乙两种单基因遗传病，调查发现以下两个家系都有相关患者，系谱图如下（已知I3不携带乙病致病基因）。
下列分析正确的是（）A．甲病致病基因位于X染色体上 B．乙病为常染色体隐性遗传病C．Ⅱ9与Ⅱ10生育一个患甲病的男孩概率为1／18 D．Ⅱ10的基因型有6种可能4.根据每个细胞中核DNA相对含量的不同，将某高等哺乳动物辜丸中连续增殖的精原细胞归为A、B、C三、、组，每组细胞数目如图l所示；将辜丸中参与配子形成过程的细胞归为D，E，F三组，每组细胞数目如图2所示；根据细胞中每条染色体上DNA含量在细胞周期中的变化绘制曲线，如图3所示．下列叙述中错误的是（）A．图1中的B组细胞位于图3中的甲～乙段，细胞中发生的主要变化是DNA的复制和有关蛋白质的合成B．图1中C组的细胞不都位于图3的乙～丙段C．图2中F组细胞变成E组细胞的过程发生在图3的丙～丁段D．图2中D组细胞表示精细胞，E组细胞可以表示精原细胞，也可表示次级精母细胞5.芥酸会降低菜籽油的品质。
油菜有两对独立遗传的等位基因(H和h,G和g)控制菜籽的芥酸含量。
下图是获得低芥酸油菜新品种(HHGG)的技术路线,已知油菜单个花药由花药壁(2n)及大量花粉(n)等组分组成,这些组分的细胞都具有全能性。
高三限时训练15
高三限时训练151．N A 为阿伏加德罗常数，下述正确的是 （ ）A ．标准状况下，11.2L 四氯化碳所含分子数为0.5N AB ．1mo/L 的盐酸溶液中，所含氯化氢分子数为N AC ．80g 硝酸铵含有氮原子数为2N A （相对原子质量：N-14 H-1 O-16）D ．1mo 氯气和铁反应时转移的电子数为3N A 2．某元素位于第三周期第VIA 族。
下列叙述不．正确的是： （ ）A ．该元素非金属性较强B ．该元素原子的核电荷数为16C ．该元素原子核外有3个电子层D ．该元素原子容易失去最外层电子3．对于0.1mol ·L -1(NH 4)2SO 4溶液，不．正确的是 A ．c(NH 4+)＜2c(SO 42-)B ．c(NH 4+)+c(NH 3·H 2O)=2c(SO 42-)C ．c(NH 4+)+c(H +)= c(SO 42-)+c(OH -) D ．加入少量NaOH 固体，c(NH +4)减少4．下列实验操作与预期目的或所得结论一致的是（ ）5．下列有关氧化还原反应的说法正确的是（ ）A ．工业上常以SiO 2为原料制取粗硅，这一过程中，硅元素被氧化B ．浓盐酸在化学反应中既可以做氧化剂，又可以还原剂C ．在任何条件下都不能发生反应：Cu+H 2SO 4 == CuSO 4+H 2↑D ．亚氯酸可发生分解反应：HClO 2 C1O 2↑+C12+H 2O （未配平）1mo1HC1O 2分解时，转移电子的物质的量为1mo16、我国科学家在世界上第一次为一种名为“钴酞菁”的分子（直径为1.3×10-9m 、分子式为C 32H 16N 8Co ）恢复了磁性。
已知该物质主要用于有机反应中的催化剂以及光电子等高新技术领域。
下列说法中不．正确的是（ ） Ａ．“钴酞菁”分子所形成的分散系具有丁达尔效应Ｂ．该物质属于有机高分子化合物Ｃ．此项工作的研究表明，人们可以改变分子的某些物理性质 Ｄ．此项研究结果可广泛应用于光电器件、生物技术等方面 7．（双选）下列叙述正确的是 （ ） A ．电镀对，通常把待镀的金属制品作阳极B ．右图中电子由Zn 极流向Cu 极，盐桥中的C1-移向CuSO 4溶液C ．氢氧燃料电池（酸性电解质）中O 2通入正极，电极反应为O 2+4H 十十4e － =2H 2OD ．在海轮外壳连接锌块保护外壳不受腐蚀是采用了牺牲阳极的阴极保护法8．（双选）下列离子方程式正确的是 （ ）A. 向NaHSO 4溶液中滴加Ba(OH)2溶液恰好到中性 2H ++SO 42-+Ba 2++2OH - ==BaSO 4↓+2H 2OB. 用NaOH 溶液吸收少量H 2S 气体,OH -+H 2S == HS -+H 2OC. 电解饱和氯化镁溶液 2Cl －＋2H 2O 2OH －＋H 2↑＋Cl 2↑D. 向NaHCO 3溶液中加入少量Ca(OH)2溶液2HCO 3-+Ca 2++2OH - == CaCO 3↓+CO 32-+2H 2O电解高温班别___________姓名____________座号_____成绩_____行。
高三生物限时训练(减数分裂)
高三生物限时训练（减数分裂）一、单选题1．右图是按顺时针方向表示的4种植物细胞的细胞周期，其中说法正确的是A．图中的b→a→b表示细胞增殖过程的一个细胞周期B．甲图的b→a与丙图的b→a所用的时间可能一样长C．从a→b，由于DNA的复制使染色体数目增加一倍D．观察植物细胞有丝分裂的实验材料最好是选植物甲2．在减数分裂的整个过程中，细胞分裂次数、染色体复制次数、着丝点分裂次数、染色体减半次数、DNA分子减半次数依次是A．1、2、2、1、2 B．1、1、1、2、1 C．2、1、1、2、1 D．2、1、1、1、2 3．同源染色体与姐妹染色单体的共同点是A．它们中的一条都是以另一条为模板复制而来的B．它们的形状、大小、结构一般都是相同的C．它们所含的基因都是相同的D．一对同源染色体与一对姐妹染色单体所包含的DNA分子数都是相同的4．正常人的染色体数是46条，在以下细胞中，可能找到两个X染色体的是①精原细胞②卵原细胞③初级精母细胞④初级卵母细胞⑤次级精母细胞⑥次级卵母细胞A．①③⑤⑥ B．②④⑥ C．①③⑤ D．②④⑤⑥5．某人染色体组成为44+XYY，该病人可能是由于亲代产生配子时，什么细胞分裂的后期，两条性染色体移向同一侧所致A．次级精母细胞 B．次级卵母细胞 C．初级精母细胞 D．初级卵母细胞6．下图是某种动物细胞分裂不同时期的示意图，属于卵细胞形成过程的是：A．①②④ B．②③④ C．③④ D．④7．右图是一个哺乳动物细胞的示意图，它属于A．精巢中的细胞 B．受精卵 C．骨髓干细胞 D．雄配子8．某一生物有四对染色体，假设一个精原细胞产生的正常精细胞和异常精细胞的个数比为l：1。
则该精原细胞在产生精细胞的过程中，最有可能出现的是A．一个初级精母细胞在分裂后期有一对姐妹染色单体移向了同一极B．一个次级精母细胞在分裂后期有一对姐妹染色单体移向了同一极C．两个次级精母细胞在分裂后期有一对姐妹染色单体移向了同一极D．两个初级精母细胞在分裂后期有一对姐妹染色单体移向了同一极9．细胞减数第一次分裂过程中不会出现A．同源染色体配对(联会) B．四分体中的非姐妹染色单体之间交叉、互换C．同源染色体彼此分离 D．姐妹染色单体分离10．在适宜时期取材，能观察到植物细胞同源染色体配对现象的实验材料是：A.根尖B.茎尖C.花药D.种子11．下列有关减数分裂的叙述，除哪一项外都是正确的A．经历两次连续的细胞分裂，只有一个细胞周期B．发生基因自由组合，增加了配子的多样性C．减数实质是配对的同源染色体的分开D．减数分裂结束时形成的是成熟的生殖细胞12． A和a为控制果蝇体色的一对等位基因，只存在于X染色体上。
高三语文限时规范训练
1．根据李清照的诗句“红藕香残玉簟秋”写一个场景。
要求：①想象合理；②语言生动；③不超过60字。
答：_____________________________________________________________________ _____________________________________________________________________ 解析：对于古诗句的扩展，首先要充分理解诗句的意境，然后才能运用联想和想象进行扩写。
因为古诗本身无比凝练而优美，所以扩写后的文字也要尽量有诗意。
答案：走出庭院，放眼池塘，红色的荷花渐渐凋谢，淡淡的荷香若有若无。
踱回房中，坐在卧榻，素白的竹席只觉凉意袭人。
2．根据下面寓言故事的寓意，补写一个合乎逻辑的结尾。
(50字左右)有位青年对自己的贫困境况总是怨天尤人。
一位老人对他说：“你具有如此丰厚的财富，为什么还要怨天尤人呢？”青年急切地问：“它在哪呢？”“你的一双眼睛，只要你能给我你的一双眼睛，我就可以把你想得到的给你。
”“不，我不能失去我的眼睛。
”“好吧，那么把你的一双手给我吧。
为此，我可用一整袋黄金作为交换。
”“不，我的双手也不能失去。
”老人最后说：“________________。
”答：_______________________________________________________________________ _______________________________________________________________________ 解析：根据上文老人和青年的对话，可以推知，丰厚的财富就是眼睛和双手。
符合这个意思即可。
答案：(示例)你有一双眼睛，你就可以学习；有一双手，你就可以劳动。
现在，你自己看到了吧，你有如此丰厚的财富啊！3．苏轼曾评价王维的诗画说：“味摩诘之诗，诗中有画；观摩诘之画，画中有诗。
高三物理限时训练
高三物理限时训练一、选择题（每题12分）1、如图所示，弹簧振子在振动过程中，振子从a到b历时0.2 s，振子经a、b两点时速度相同，若它从b再回到a的最短时间为0.4 s，则该振子的振动频率为()A．1 Hz B．1.25 HzC．2 Hz D．2.5 Hz2、如图所示为一列在均匀介质中沿x轴正方向传播的简谐横波在某时刻的波形图，波速为4 m/s，则()C．经过Δt＝3 s，质点Q通过的路程是0.6 mD．经过Δt＝3 s，质点P将向右移动12 m3、一列简谐横波沿直线传播，某时刻该列波上正好经过平衡位置的两质点相距6 m，且这两质点之间的波峰只有一个，则该简谐波可能的波长为()A．4 m、6 m和8 m B．6 m、8 m和12 mC．4 m、6 m和12 m D．4 m、8 m和12 m4、A、B两列简谐横波均沿x轴正向传播，在某时刻的波形分别如图3甲、乙所示，经过时间t(t小于A波的周期T A)，这两列简谐横波的波形分别变为图丙、丁所示，则A、B两列波的波速v A、v B之比不可能的是()A．1∶1B．1∶2 C．1∶3 D．3∶15、一列简谐横波沿x轴正方向传播，图(a)是t＝0时刻的波形图，图(b)和图(c)分别是x轴上某两处质点的振动图像。
由此可知，这两质点平衡位置之间的距离可能是()A.13 mB.23 m C ．1 m D.43m 6、一束光从空气射向折射率n ＝2的某种玻璃的表面，如图所示。
i 代表入射角，则( )A ．当入射角i ＝0°时不会发生折射现象B ．无论入射角i 是多大，折射角r 都不会超过45°C ．欲使折射角r ＝30°，应以i ＝60°的角度入射D ．当入射角i ＝arctan 2时，反射光线跟折射光线恰好互相垂直7、某学习小组在探究三棱镜对光的色散的实验中，用一束含有两种A 、B 不同颜色的光束以一定的角度从三棱镜的一边射入，并从另一面射出，如图所示。
高三英语限时训练三
高三英语限时训练三（答题时间：100分钟；试卷总分：100分）一、单项填空(共15小题；每小题1分，满分15分)1. ---Would you like tea or coffee?---I don’t mind---_______ you’re making.A. HoweverB. whateverC. whicheverD. No matter2. ---Do you know why Jeff resigned from the firm?---He held out for higher wages, but was _______ in the end.A. put downB. broke downC. cut downD. turned down3. By and by, _______ go out to contact other people in person, more and more people tend to socialize with others via electronic devices.A. other thanB. rather thanC. more thanD. less than4. At first, I didn’t know what _______ Facebook was, and now I do know what it is. I have to say, it sounds like _______ huge waste of time.A. /; theB. /; aC. the; aD. a; the5. A good ―teammate‖ doesn’t _______ make a good partner. Those who put their partners in this category were not most _______ to describe their relationship as slightly unhappy.A. necessarily; possiblyB. likely; possiblyC. necessarily; likelyD. likely; likely6. Our patients _______ faster recoveries and greater pain relief than patients undergoing open neck and back surgery. And the y’re up and _______ around within a few hours of surgery.A. figure; walkB. average; walkingC. calculate; walkedD. count; walking7. Throughout the world, the majority of the employers are planning to cut down on wages_______ the economic crisis.A. with regard toB. in defense ofC. by means ofD. in reaction to8. What if you ________ to send an essay with your application? Would you have been rejected?A. forgetB. would forgetC. had forgottenD. should forget9. So absorbed in his work _________that not a sound _________.A. was the president; did she dare to makeB. was the president; dared she to makeC. the president was; she dared makeD. the president was; she did dare to make10. ________, I believe, and you will find him very outgoing.A. Having a talk with TomB. Given a talk with TomC. One talk with TomD. If you have a talk with Tom11. Whether you like it or not, we live in a particular community _______ exchanging presents is an important part of communication.A. whichB. thatC. whenD. where12. ---To get a slim figure. Fanny has tried many ways, but in vain.---So now she is reduced _______ anything for supper.A.To not eatingB. not to eatC. not to eatingD. to not eat13. A British official said that _______ this impractical policy could be changed, the future for Britain indeed dark.A. unlessB. whenC. ifD. until14. ---Hi, Dave. This is Helen speaking!---Hi, what a coincidence! I _______ about you.A. was just thinkingB. just thoughtC. have just thoughtD. would just think15. --- Sorry, it's already 6 o’cl ock. I have to be off for an appointment.---OK. ________.A. It couldn’t be betterB. You really have me thereC. Let’s call it a dayD. Take your time二、完形填空(共20小题；每小题1分，共20分)In a world where comparisons happen non-stop, it is difficult to look outside yourself and to ever be 16 with who you are. There’s always someone who’s a bit 17 . The only solution is to reach 18 and measure against what Warren Buffett calls your own inner yardstick. There is no more 19 measure for comparison than who your were yesterday, last week or last decade, when you were at your 20 .Nothing useful ever comes from comparison to others. Either you see yourself as better than someone and you get 21 , or you see someone else as better than you and you feel like all your hard work is for 22 . It is a fool’s game. Not one of us is exactly 23 . The only direct and honest comparison is 24 yourself. Everything else is apples to oranges.My opinion is that you are only 25 to compare yourself to someone else if their life 26 is the same as your own. Good luck finding that 27 . And one thing is for sure. No matter how hard you work and how dedicated you are, there will always be someone who can run a little faster, jump a little higher, score a little better or look a little nicer in a swimsuit. And if there’s not, you can 28 someone is coming up fast 29 you. So how can you always win in life? Become your best 30 .Having an image of your most recent past limits is the perfect thing to 31 you to the next level. If you ran 7 flights of stairs yesterday, then do 8 today. Who 32 if the guy next to you did 15? It doesn’t make a bit o f 33 . You are a more 34 person today than you were yesterday. Your own 35 is all you need.16. A. patient B. strict C. content D. concerned17. A. stronger B. better C. lazier D. wiser18. A. inside B. out C. for D. up19. A. accurate B. useful C. careful D. powerful20. A. end B. best C. convenience D. side21. A. satisfied B. busy C. inspired D. lazy22. A. nothing B. fun C. sure D. success23. A. equal B. unique C. alike D. common24. A. within B. by C. for D. of25. A. instructed B. allowed C. directed D. suggested26. A. situation B. position C. occasion D. accommodation27. A. game B. match C. friend D. enemy28. A. conclude B. bet C. announce D. declare29. A. before B. beside C. below D. behind30. A. assistant B. competitor C. coach D. teacher31. A. contribute B. expose C. push D. devote32. A. cares B. says C. wonders D. asks33. A. effort B. sense C. difference D. change34. A. successful B. happy C. lucky D. fit35. A. benefit B. progress C. habit D. result三、阅读理解(共15小题；每题2分，满分30分)AAmong the more colorful characters of Leadville’s golden age were H. A. W. Tabor and his wife,Elizabeth McCourt, better known as ―Baby Doe‖. Their history is fast becoming one of the legends of the Old West.Horace Austin Warner Tabor was a school teacher in Vermont. Then he moved west to the small Colorado mining camp known as California Gulch, which he later renamed Leadville when he became its leading citizen. ―Great deposits of lead are sure to be found here.‖ he said.As it turned out, it was silver, not lead, that was to make Leadville’s fortune and wealth. Tabor knew little about mining himself, so he opened a general store, which sold everything from boots to salt, flour, and tobacco. It was his custom to ―grubstake‖ pr ospective miners, in other words, to supply them with food and supplies, or ―grub‖, while they looked for ore（矿石）, in return for which he would get a share in the mine if one was discovered. He did this for a number of years, but no one that he aided ever found anything of value.Finally one day in the year 1878, so the story goes, two miners came in and asked for ―grub‖. Tabor had decided to quit supplying it because he had lost too much money that way. These were persistent, however, and Tabor was too bus y to argue with them. ―Oh help yourself. One more time won’t make any difference,‖ He said and went on selling shoes and hats to other customers. The two miners took $17 worth of supplies, in return for which they gave Tabor a one-third interest in their findings. They picked a barren place on the mountain side and began to dig. After nine days they struck a rich vein of silver. Tabor bought the shares of the other two men, and so the mine belonged to him alone. This mine, known as the ―Pittsburgh Mine,‖ ma de $1,300,000 for Tabor in return for his $17 investment.Later Tabor bought the Matchless Mine on another barren hillside just outside the town for $117,000. This turned out to be even more fabulous than the Pittsburgh, yielding $35,000 worth of silver per day at one time. Leadville grew. Tabor became its first mayor, and later became lieutenant governor of the state.36. Leadville got its name for the following reasons EXCEPT that________.A. Tabor became its leading citizenB. great deposits of lead is expected to be found thereC. it could bring good fortune to TaborD. it was renamed37. The underlined word ―grubstake‖ in Paragraph 3 means________A. to supply miners with food and suppliesB. to open a general storeC. to do one’s contribution to the development of the mineD. to supply miners with food and supplies and in return get a share in the mine, if one was discovered.38. We can infer that Tabor’s life career is ________A. purely luckyB. based on his managing theory of ―grubstake‖C. through the help from his wifeD. because he planned well and accomplished targets step by step39. Which of the following can be the best title for the passage?A. Tabor’s Life.B. A legend of the Old WestC. Lead Makes Leadville’s FortuneD. The Best InvestmentBPupils remember more and behave better when 3D images are usedin lessons, research suggests. They are quicker to learn and absorb newconcepts, and display higher levels of concentration.Professor Anne Bamford, of the University of the Arts, London,studied the effectiveness of 3D content in 15 schools across sevencountries, including the UK. Pupils in 3D classes could remember more than those in the 2D classes after four weeks, improving test scores by an average 17 percent compared with eight percent for 2D lessons. They gave more detailed answers to the tasks and were more likely to think in 3D, using hand gestures and mime (模仿动作) to answer the test questions successfully.The teachers commented that the pupils in the 3D groups haddeeper understanding, increased attention span, more motivation andhigher engagement in the lessons.Children are used to 3D with the rise of computer games that use thetechnology—90 percent of those in the study had seen a 3D film.Schools would need 3D-enabled projectors（投影仪）, laptops with goodpicture capabilities, 3D software and glasses for children to introduceanimations (动作) into classrooms.But Danny Nicholson, an educationist, said the technology would be impractical to use in schools and could be costly. He said, ―While I think the idea of 3D technology is very interesting, I worry that 3D is a bit of an expensive gimmick (小玩意儿). There are a few cases where a true 3D image might help, but most of the time, good 2D models that can be moved , would be just so effective.‖In Colorado, the US, one school district is already in the process of having 1,000 3D projectors fixed in classrooms. And the University of Caledonia, which carries out scientific research into the Lake Tabon Basin, has used 3D presentations with Grade Six pupils. Those who watched the 3D presentations were more engaged and reported a general increase in their interest in science compared with students who watched the 2D version.40. Danny Nicholson tends to think that .A. many pupils prefer 2D modelsB. 3D is a bit expensive for some schoolsC. true 3D images would not help in classesD. 3D technology has a bright future in classes41. What can we learn from the last paragraph?A. 3D classes will soon be given in one school district in Colorado.B. Teachers will use the 3D technology through specific training.C. Many pupils are now more interested in science than before.D. 3D technology will replace 2D models in the future.42. What is the text mainly about?A. 2D models are always more effective than 3D images.B. The differences between 3D and 2D images.C. How schools can make full use of 3D technology.D. Pupils behave better when 3D images are used in classes.CNorthern Lights TourLocated in the middle of the northern lights belt, Tromso can offer some of the highest levels of northern lights activity on earth. Perhaps Tromso is the world's best place for a Northern Lights Tour.Join one of our Northern Lights Holidays this winter. It could become one of the greatest experiences in your life.DESTINATION Troms county, Norway.PRICE $450 per personWHEN 2th September until 31st March.PICK-UP Each evening at 6 PM pitside your hotel.DROP-OFF Earliest at 12 AM. When we have a sighting we often stay out later, at no extra cost.SIZE OF GROUP Maximum 8 participants is recommended and normal, but not absolute. A small group allows more freedom in terms of chasing the northern lights.INCLUDED- Transportation each day in a comfortable car- A meal each day- All necessary equipment such as snowshoes, flashlight, water-filled bottle, woolen underwear, a war, hat, warm shoes, warm stockings, and reindeer skin to lie on, if needed.- A guide who will do anything necessary to find the northern lights.EXCITING CHASEA Northern Lights Holiday means an intense and exciting chase – to the coast or deep into the wild, perhaps even to the Finnish border. Each day on a Northern Lights Tour we contact meteorologists shortly before departure to get accurate information. In order to find out where we will have best chances to see the northern lights.WE GUARANTEE A GREA T TRIPThe northern lights are unpredictable, but we guarantee that we will do everything to find it. Patience is a keyword on Northern Lights Tour.ECO-TOURISMWe offer ecologically sustainable and responsible tours. Travelling in small groups is an essential part of the ecotourism concept, as small groups have lesser impact on nature and will not disturb the wildlife unnecessarily.43. A small group is preferred for the following reasons EXCEPT that _______.A. a small group is free to run after the northern lightsB. a small group has less effect on natureC. a small group can save the travel costD. a small group will not disturb wildlife44. The underlined word ―it‖ refers to ―________‖.A. the northern lights tourB. patienceC. equipmentD. the northern light45. We can infer that ________.A. if tourists stay out late, they have to pay moreB. every tourist group is not sure to see the northern lightsC. every tourist group get the money back if they don’t see the northern lightsD. the northern lights can be seen every day from 20th September to 31st March46. The passage is most likely to be taken from a(n) ________.A. advertisementB. news reportC. science textbookD. tourist brochureDIn the case of mobile phones, change is everything. Recent research indicates that the mobile phone is changing not only our culture, but our very bodies as well．First, let's talk about culture. The difference between the mobile phone and its parent, the fixed-line phone, is that a mobile number corresponds to a person, while a landline goes to a place. If you call my mobile, you get me. If you call my fixed-line phone, you get whoever answers it．This has several implications（含义）. The most common one, however, and perhaps the thing that has changed our culture f orever, is the ―meeting‖ influence. People no longer need to make firm plans about when and where to meet. Twenty years ago, a Friday night would need to be arranged in advance. You needed enough time to allow everyone to get from their place of work to the first meeting place. Now，however, a night out can be arranged on the run. It is no longer ―see you there at 8‖，but "text me around 8 and we'll see where we all are."Texting changes people as well. In their paper, ―Insights into the Social and Psycho logical Effects of SMS Text Messaging", two British researchers distinguished between two types of mobile phone users: the ―talkers‖ and the ―texters‖－those who prefer voice to text messages and those who prefer text to voice.They found that the mobile phone's individuality and privacy gave texters the ability to express a whole new outer personality. Texters were likely to report that their family would be surprised if they were to read their texts. This suggests that texting allowed texters to present a self-image that differed from the one familiar to those who knew them well．Another scientist wrote of the changes that mobiles have brought to body language. There are two kinds that people use while speaking on the phone. There is the ―speakeasy‖: the he ad is held high, in a self-confident way, chatting away. And there is the ―spacemaker‖: these people focus on themselves and keep out other people.Who can blame them? Phone meetings get cancelled or reformed and camera- phones intrude（侵入）on people's privacy. So, it is understandable if your mobile makes you nervous. But perhaps you needn't worry so much. After all, it is good to talk.47. According to the two British researchers, the social and psychological effects are mostly likely to be seen on ________.A. talkersB. the ―speakeasy‖C. the ―spacemaker‖D. texters48. We can infer from the passage that the texts sent by texters are________.A. quite revealingB. well writtenC. unacceptable by othersD. shocking to others49. According to the passage, who is afraid of being heard while talking on the mobile?A. TalkersB. The ―speakeasy‖C. The ―spacemaker‖D. Texters50. Which of the following can be the best title for the passage?A. The SMS EffectB. Cultural Implications of Mobile Phone UseC. Changes in the Use of the MobileD. Body Language and the Mobile Phone四、任务型阅读(共10小题；每小题1分，满分10分)Scientists, doctors and mental health professionals have been studying the connection between colors and mood for years. Many now believe that colors can not only bring about emotional reactions, but can also correct mood. Colors behave in three basic ways: active, passive and neutral (中和的).Active colors are warm colors, including yellow, orange and red. These colors bring confidence. Warm colors can also bring cheerful attitudes. Yellows and golden colors work well in offices, kitchens and study areas. Reds heat up a room. Passive colors or cool colors make people calm, quiet and satisfied. Bedrooms, private areas and bathrooms are great places for blues and greens. Beige, gray and white are thought of as neutral colors. They help to put the focus on other colors or serve to tone down colors that might otherwise be overpowering on their own.You can easily change the look or feel of a room by making good use of different colors. Mixing and matching colors is an excellent way to balance color and emotion, and provide a welcoming feel for guests.To create a feeling of warmth and comfort in a room, use bright, warm colors like yellow, orange and red. These colors are good choices for rooms that appear cool due to limited sunlight. Yellow adds cheerfulness to dull rooms. You can add yellows to rooms which are not closely related to happy thoughts, such as kitchens and laundry room. In rooms where there's plenty of sunshine, cool colors can provide a calming environment. Sage greens and sky blues are perfect for bedrooms, playrooms and activity areas. Neutral colors, such as pale gray, white and beige, send a peaceful message to your brain. It's not a coincidence that most doctor's offices, coffee shops and mental health centers are decorated in neutrals.To make your wall color choices better, pick out furniture that will provide a visual contrast. Cool右面这幅照片展现了志愿者慈善义卖活动（Charity Bazaar ）的情景。
高三生物限时训练
高三生物限时训练3一单选题1．两对基因位于两对染色体上的AaBb动物，其一个精原细胞形成的任意两个精子中，不可能出现的是：A、AB和abB、aB和AbC、ab和abD、ab和aB2．细胞质基质是细胞结构的重要组成部分，许多生物化学反应在细胞质基质中进行，而下列生物化学反应在细胞质基质中进行的是A．葡萄糖的无氧分解 B．色盲基因的转录 C．水的光解 D．消化酶的合成3．下列关于染色体组、单倍体和二倍体的叙述中不正确的是A．一个染色体组中不含同源染色体B．由受精卵发育的个体，体细胞含有两个染色体组的叫二倍体C．含一个染色体组的个体是单倍体，单倍体不一定含一个染色体组D．人工诱导多倍体唯一的方法是用秋水仙素处理萌发的种子或幼苗4. 农作物合理密植的原因不包括A．增加植物周围CO2浓度 B．充分利用光能，增加光合作用面积C．合理利用土地资源，提高单位面积产量D．降低农作物周围环境的温度，增加单位面积产量5．某DNA分子含胸腺嘧啶200个，胞嘧啶450个，该DNA复制数次后，消耗了周围环境中1400个腺嘌呤脱氧核苷酸，则该DNA分子已经复制了A．2次B．3次C．4次D．5次6．分析下面的实验装置，你认为这个装置可以用来证明下列说法中的A.呼吸作用是否产生CO2B.光合作用是否需要CO2C.光合作用是否需要光D.呼吸作用是否需要O27．在人类的MN血型系统中，基因型为L M L M的个体表现为M血型，基因型为L M L N的个体表现为MN血型，基因型为L N L N的个体表现为N血型。
1977年，上海中心血防站调查了1788个MN血型者，发现有397人是M型，861人是MN型，530人是N型。
则L M和L N的基因频率分别是：A．54％，46％B．36％，54％ C．50％，50％ D．46％，54％二．双选题8. 下列有关说法，不正确．．．的是A．一般来说主要参与植物细胞有丝分裂过程的细胞器有内质网、线粒体和高尔基体B．癌细胞是由机体内正常细胞的原癌基因被致癌因子激活所产生的C．动物肝细胞和神经细胞的形态、结构和功能不同，根本原因是这两种细胞的RNA不同D．常用纤维素酶和果胶酶在植物体细胞杂交技术中除去细胞壁，是因为这两种酶价格便宜9．关于植物激素在生产上的应用叙述正确的是A．高浓度的生长素可以做除草剂B．给幼苗喷脱落酸可抑制其生长C．将赤霉素涂在没有授粉的番茄花蕾上能获得无籽番茄D．乙烯可以促进青香蕉的成熟三．非选择题。
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高三限时训练十一、单项选择。
1. ---Alice has just lost her husband to heart failure.--Her __________ smile can’t hide her sorrow.A. artificialB. arbitraryC. compulsoryD. conventional2. ---Can you give me the right answer?---Sorry, I ______. Would you repeat that question?A. hadn’t listenedB. haven’t listenedC.wasn’t listeningD. don’t listen3. How could I lie to her ______ she lived for the truth, whether it was found in music or people?A. whenB. unlessC. whileD. though4. Tony always works out development schemes faster than others. Is it _____ he graduated from a top university ______ counts?A. because ,thatB. that; thatC.that, whichD. why, what5. While mobile phones are thought to double the risk of developing brain cancer, many businesses have made claims ______ the safety of their products.A. in defense ofB. in need ofC. in search ofD. in view of6. ________ toothache, the old man felt very bitter, having no good sleep.A. Not being rid ofB. Not rid ofC. Not ridding ofD. Not having rid of7. The doctor suggested that I keep away from oily food, because it ______ easily.A. doesn’t digestB. isn’t digestC. isn’t to digestD. won’t be digested8. Not far from the club, there was a garden, ______owner seated in it playing bridge with his children every afternoon.A. whoseB. thatC.itsD. which9. -----When can I use your computer?---Never! ___________ should you touch it.A. In no timeB. Under no circumstanceC.On no conditionD. At no case10. ----Will my daughter be all right soon, doctor?---Well, she _______ be, if she takes these tables.A. mustB. mayC.shouldD. can11. Recent research has ____the causes of the mysterious disease that has claimed thousands of lives.A. laid stress onB. caught hold ofC. made sense ofD. cast light on12. Present at the historic meeting ____many an official on Nov 7, of course President Xi Jinping and Ma Ying-jeou _________.A. has been; includedB. was; includingC. were; includedD. was; included13. ____from the Song Dynasty, the Confucian Temple of Nanjing has now developed into a famous scenic spot, __________ sightseeing, shopping and tasty foods.A. Having dated; featuredB. Dating; featuringC. Dating; having featuredD. Dated; featuring14.---It seems that people are becoming more and more selfish.----How much happier life would be if we _______to the values of the past!A. would returnB. had returnedC. returnD. were to return15. ---It is said that it was Mark who started the quarrel and David simply defended himself.---I don’t believe it. Those two hate each other. Anyway, ____________.A. Two wrongs don’t make a rightB. It takes two to tangoC. Attack is the best means of defenseD. A fox may grow grey, but never good二、完形填空（共20小题；每小题1分，满分20分）Years ago, feeling tired and frustrated, I began to doubt whether teaching was worth it any more. 16 ,a ridiculous moment in class lit my way out of the darkness.I was teaching a chemistry lesson, and the students were 17 about working with alcohol lamps. But a girl couldn't get her wick（灯芯）to burn. She was one of the kids who always seem to be the 18 one picked for the team, who appeared to have 19 that she could never be special.Normally I do not interfere with science projects, because 20 Can be part of the learning process. Yet this was simply a matter of faulty equipment; the wick was not as 21 as it should have been. I needed to 22 .The girl had tears in her eyes, and I felt 23 of myself for ever having felt like giving up. For that one moment, the only thing that_24 to me was that this girl should have a successful experiment. She was going to go home that day with a 25 on her face. I bent over her alcohol lamp, and with a long kitchen match tried to reach the wick. I was so 26 to the match that I could feel the flame. Finally the wick caught fire, and I looked up triumphantly（得意洋洋地）， 27 the smile on the girl's face.28 ,she took one look at me and began screaming in fear. I did not understand why the kids were all pointing at me 29 I realized that the flame had lit my hair. Several kids ran to me and 30 at my head. Talk about a dream come true----they got to hit their teacher on the head and say they were 31 him.A few minutes later, all was well and l watched the kids 32 the experiment. I felt like an idiot, and yet for the first time in weeks, I felt how much I 33 about teaching. I had tried hard to help someone; though not particularly well, but the 34 was there. From that moment, determined to always teach like my hair was 35 .16.A.Instantly B.Fortunately C.Hopefully D.Absolutely17.A.excited B.embarrassed C.skeptical D.particular18.A.first B.best st D.very19.A.accepted B.denied C.declared D.hoped20.A.practice B.accidents C.inaccuracy D.failure21.A.dry B.big C.thick D.long22.A.step in B.step aside C.step up D.step down23.A.proud B.aware C.tired D.ashamed24.A.happened B.attended C.mattered D.related25.A.fear B.smile C.shame D.surprise26.A.accessible B.close C.low D.short27.A.expecting B.finding C.missing D.imagining28.A.Rather B.Besides C.Still D.Instead29.A.as B.when C.until D.since30.A.looked B.shouted C.hit D.waved31.A.helping B.cursing C.kidding D.amusing32.A.beginning B.pausing C.continuing D.preparing33.A.argued B.cared plained D.worried34.A.strategy B.reason C.scheme D.effort35.A.on fire B.on end C.in sight D.in chaos三、阅读理解。