江苏省苏州四市五区2019届高三上学期期初调研英语试题 含答案
【英语】江苏省苏州四市五区2021届高三上学期期初调研英语试题
2020~2021学年第一学期高三期初调研试卷英语2020.09注意事项：1.本试卷满分150分，考试时间120分钟。
2.答题前，务必将自己的学校、姓名、考试号等相关信息写在答题卡上规定的地方。
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如需改动，用橡皮擦净后，再选涂其他答案标号，回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What does the man want the woman to do?A.Attend the party.B.Invite more people.C.Prepare the food.2.What are the couple talking about?A.Drinking tea.B.Buying a gift.C.Having a habit.3.When will they ask Ken for dinner?A.Next Friday.B.This Thursday.C.This Friday.4.How much did the woman pay?A.100dollars.B.80dollars.C.50dollars.5.Where does the conversation probably take place?A.In a supermarket.B.In a hospital.C.In a restaurant.第二节（共15题；每小题1.5分，满分22.5分）听下面5段对话或独白。
2019-2020学年苏州市第一高级中学高三英语上学期期中考试试题及参考答案
2019-2020学年苏州市第一高级中学高三英语上学期期中考试试题及参考答案第一部分阅读（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下列短文，从每题所给的A、B、C、D四个选项中选出最佳选项AAs a nation, we are getting bigger and eating more. But there are effective ways to control your appetite and eat only as much as you need.Keep away from low-nutrition snacksThat means ice cream, sweets, chips biscuits, cakes and any other salty orsugary snacks you eat between meals. Although we have a tendency to eat them, you can learn to live without these unhealthy-and-fattening-additions to your diet. Try to make it a habit to eat them only when offered at social events or as a special treat.Leave half an hour between main course and dessertHaving a break between courses gives your brain time to receive the fullness signal and make you more likely to refuse the sweet stuff. And, in fact, as soon as you feel the first signals of fullness, remove your plate from the table. That will tell your brain that food time is over.Make yours a small helpingPut an end to super-sized portions. You won’t be missing out—today’s small was the medium or large of a few decade ago. Select or serve yourself a modest portion and eat it slowly enjoying the flavors. Before you know it, small will feel just right. What’s more, ordering the smaller size leads to wearing the smaller size.Distract yourselfWhen you find yourself hunting down food, even though you’re even hungry, do something else for 20 minutes. Drink a large glass of water as thirst is often confused with a desire for food. Choose something that engages your brain as well as your hands, such as writing a letter or listening to a song. You could also go for a short walk or do something that you enjoy. If you think you really are hungry, set an alarm for 20 minutes’ time and if you still want to eat when it rings, fine. If not, the urge will have passed.1. Which way suits you better if you tend to order a large portion of food?A. Distract yourself.B. Make yours a small helping.C. Keep away from low-nutrition snacks.D. Leave half an hour between main course and dessert.2. Why should you have a break between main course and dessert?A. To give people time to chat.B. To have a good appetite for sweet stuff.C. To reduce appetite for dessert.D. To give the host time to remove your plate.3. When you find yourself pursuing for food, what should you do?A. Eat some biscuits.B. Eat some sugary snacks.C. Have some soft drinks.D. Listen to a lovely melody.BA former UPS driver and his wife have made history by donating $20 million to Morgan State University – the largest gift any historically black college or university (HBCU) has ever received from a former student. The money, pledged by Calvin Tyler Jr and his wife Tina, will fund scholarships that were established under the Tylers’ name in 2002.Tyler grew up in a low-income family and was forced to drop out of Morgan State University in 1963 because he could no longer afford to study. The following year, Tyler saw a job advertisement in a Baltimore newspaper from United Parcel Service and got a job with the company as a driver. He rose through the ranks during his 34-year career at the global shipping company to become its senior vice president of US operations and a member of the board of directors before retiring in 1998.Tyler and his wife, also a Baltimore native, have lived all across the country but he said they have never forgotten their humble beginnings.Their latest pledge follows a $5million commitment they made in 2016 for the fund, which to date has supported 222 students with full or partial scholarships.Marybeth Gasman, a professor at Rutgers University who studies HBCUs, said the gift is significant because public HBCU’s like Morgan State University tend to have a lower alumni giving rate compared to private ones.“For a long time, they weren’t asking alumni to give,” she said. But that has changed in the past couple of decades, she added, and the schools have “started asking alumni to give and creating a culture of philanthropy (慈善) on campus.”David K. Wilson, the president of Morgan State University, said the money will help students for years tocome. “Morgan is so proud to call this son and daughter of the great city of Baltimore our own,” he said in a statement. “Through their historic giving, the doors of higher education will most certainly be kept open for generations of aspiring leaders whose financial shortfalls may have kept them from realizing their academic dreams.”“We are forever indebted to the Tylers”.4. Why is Tyler’s donation historic?A. He was a former UPS driver.B. The donation is large enough.C. The donation will fund his scholarships.D. He used to be a student at the university.5. What is a driving force of Tyler’s donation?A. His working experiences.B. His career achievements.C. His promise to the university.D. His past embarrassing situations.6. Which is true about HBCUs according to Gasman?A. They are mainly public universities.B. They are encouraging alumni to donate.C. They rarely accept help from the alumni.D. They have changed little over the decades.7. What can be inferred about Tyler from Wilson’s comments?A. He’s helped many city leaders.B. He’s grateful to his university.C. He’s made great contributions.D. He’s proud of his son and daughter.CThe AI research arm of Alibaba created a machine learning model that received a higher score on the Stanford Question Answering Dataset than humans. The database consists of more than 100,000 questions to test reading comprehension.In early January this year the Alibaba AI software machine scored 82.44 on the test while humans scored 82.304. Besides, computers and AI have already defeated humans, for example in games such as chess. However, it seemed that language skills were superior in humans as machines find languages hard to master.A large number of call center employees, often in developing countries, may be out of work soon if the AI robots are cheaper and as effective as human labor. Soon when you phone a company for information theconversation will go like this: “ We are sorry but all our robots are busy right now. We value your call. Please stay on the line until a robot is free to serve you. There are just 12 callers ahead of you.” A robot will serve you some popular tunes while you wait.Si Luo, who is a chief scientist of natural language processing at Alibaba’s AI research group noted that questions such as “What causes rain?” can now be answered with a high degree of accuracy by robots. Si Luo said, “ We believe the foundational technology can be gradually applied to a lot of applications such as customer service, museum tutorials, and online responses to inquiries from patients, freeing human efforts in a new way.”Si Luo’s team is working closely with Ali Xiaomi, a mobile customer service chatbot. Ali Xiaomi can be customized to be used on Alibaba’s platforms such as Taobao and Tmall. The new AI robots could answer consumers’ questions as they did the Stanford questions. The robots would look for the answers from prepared information. However, there are limits to what the system will be able to do. If questions do not have clear-cut answers, or the questions asked are too unclear or ungrammatical, the robot may not be able to deal with them.8. What can we learn about the Alibaba AI software machine?A. It has been tested in some areas.B. It has become popular since January.C. It has offered a special learning style.D. It has made people interested in reading.9. What does the example in paragraph 3 show about the AI robots?A. They should have better language skills.B. They may replace humans in some fields.C. They need to be customized to serve customers.D. They will be widely used in developing countries.10. How does Si Luo feel about the foundational technology?A. Doubtful.B. Worried.C. Curious.D. Confident.11. What can we infer from the lastparagraph about Ali Xiaomi?A. It needs to improve in some ways.B. It is connected with another system.C. It is a platform to show good service.D. It can answer any questions accordingly.DWhen I was seven my father gave me a Timex, my first watch. I loved it, wore it for years, and haven’t had another one since it stopped ticking a decade ago. Why? Because I don’t need one. I have a mobile phone and I’m always near someone with an iPod or something like that. All these devices (装置) tell the time — which is why, if you look around, you’ll see lots of empty wrists; sales of watches to young adults have been going down since 2007.This is ridiculous. Expensive cars go faster than cheap cars. Expensive clothes hang better than cheap clothes. But these days all watches tell the time as well as all other watches. Expensive watches come with extra functions — but who needs them? How often do you dive to 300 metres into the sea or need to find your direction in the area around the South Pole? So why pay that much of five years’ school fees for watches that allow you to do these things?If justice were done, the Swiss watch industry should have closed down when the Japanese discovered how to make accurate watches for a five-pound note. Instead the Swiss reinvented the watch, with the aid of millions of pounds’ worth of advertising, as a message about the man wearing it. Rolexes are for those who spend their weekends climbing icy mountains; a Patek Philippe is for one from a rich or noble family; a Breitling suggests you like to pilot planesacross the world.Watches are now classified as “investments” (投资). A 1994 Philippe recently sold for nearly £ 350,000, while 1960s Rolexes have gone from £ 15,000 to £ 30,000 plus in a year. But a watch is not an investment. It’s a toy for self-satisfaction, a matter of fashion. Prices may keep going up — they’ve been rising for 15 years. But when of fashion. Prices may keep going up — they’ve been rising for 15 years. But when fashion moves on, the owner of that £ 350,000 beauty will suddenly find his pride and joy is no more a good investment than my childhood Times.12. The author don’t need another watch because ________.A. he don’t like wearing a watchB. he has mobile phone and can ask someone for helpC. he has no sense of timeD. he thinks watches too expensive13. It seems ridiculous to the writer that________.A. expensive watches with unnecessary functions still sellB. expensive clothes sell better than cheap onesC. cheap cars don’t run as fast as expensive onesD. people dive 300 metres into the sea14. What can be learnt about Swiss watch industry from the passage?A. It wastes a huge amount of money in advertising.B. It’s hard for the industry to beat its competitors.C. It targets rich people as its potential customers.D. It’s easy for theindustry to reinvent cheap watches.15. Which would be the best title for the passage?A. Timex or Rolex?B. My Childhood TimexC. Watches? Not for Me!D. Watches----a Valuable Collection第二节（共5小题；每小题2分，满分10分）阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。
2019-2020学年度江苏省苏锡常镇四市高三教学情况调查英语试题答案解析与点睛(28页)
2019-2020学年度江苏省苏锡常镇四市高三教学情况调查英语试题英语试题第一卷(选择题共85分)第一部分听力(共两节,满分20分)做题时,先将答案标在试卷上。
录音内容结束后,你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节(共5小题;每小题1分,满分5分)听下面5段对话。
每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1. What does the woman think of gardening?A.TiringB. Boring. C Enjoyable2. Why does the man call Johnson's office?A. To ask for sick leaveB. To have his car repaired.C. To put off the appointment.3. What does the woman mean?A. She won't sit next to John. B She doesn't like the movie. C She enjoys talking to John4. Where is the man probably now?A. At homeB. In the officeC. In a restaurant5. How much does the woman pay for her tickets?A. $8.8B.$10.C.$11.2第二节(共15小题;每小题1分,满分15分)听下面5段对话或独白。
每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。
听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,各小题将给出5秒钟的作答时间。
(备用答案)江苏省苏州市2019届高三期初调研
江苏省苏州市2019届高三期初调研1. {1} [解析]由交集定义知A ∩B ＝{1}．2. 4 [解析]因为z 1＝2＋i ，z 2＝a －2i ，所以z 1·z 2＝(2＋i )(a －2i )＝2a ＋2＋(a －4)i ，又z 1z 2是实数，所以a －4＝0，即a ＝4.3. 2 [解析]由题知15(1＋2＋3＋4＋a)＝2，得a ＝0，所以方差s 2＝15×[(1－2)2＋(2－2)2＋(3－2)2＋(4－2)2＋(0－2)2]＝2.4. 4 [解析]初始值n ＝7，S ＝0，满足条件S<18，S ＝7，n ＝6，满足条件S<18，S ＝13，n ＝5，满足条件S<18，S ＝18，n ＝4，不满足条件S<18，结束循环，输出n ＝4.5. 35 [解析]记3个黑球为黑1，黑2，黑3，2个白球为白1，白2，从中一次摸出2个，有如下基本事件：(黑1，黑2)，(黑1，黑3)，(黑1，白1)，(黑1，白2)，(黑2，黑3)，(黑2，白1)，(黑2，白2)，(黑3，白1)，(黑3，白2)，(白1，白2)，共10个，其中满足条件的有6个，故所求概率P ＝610＝35. 6. －2 [解析]当x<0时，f(－x)＝x 2－2×(－x)＝－f(x)，所以f(x)＝－x 2－2x ，故a ＝－2.7. π3 [解析]由题知f ⎝⎛⎭⎫－5π12＝±1，即2×⎝⎛⎭⎫－5π12＋φ＝k π＋π2，k ∈Z ，故φ＝k π＋4π3，k ∈Z .又0≤φ≤π，所以k ＝－1，φ＝π3.8. 2 [解析]设数列{a n }的公比为q ，则由题知2S 6＝S 2＋S 4.当q ＝1时，不符合题意；当q ≠1时，由2×a 1（1－q 6）1－q ＝a 1（1－q 2）1－q ＋a 1（1－q 4）1－q ，得2q 6－q 4－q 2＝0，即q 2(2q 2＋1)(q 2－1)＝0，得q 2＝1，q ＝－1，所以a 2＋a 4a 6＝a 2（1＋q 2）a 2q 4＝2.9. －1124 [解析]设高为2，3，4对应的三边分别为a ，b ，c ，根据面积相等，得12×2×a＝12×3×b ＝12×4×c ，故a ∶b ∶c ＝6∶4∶3，不妨设a ＝6，b ＝4，c ＝3，则由余弦定理知最大内角的余弦值为cos A ＝b 2＋c 2－a 22bc ＝－1124.10.423 [解析]设四棱锥的棱长为a cm ，则由题知a 2＋32a ＝3＋1，得a ＝2，故该四棱锥的体积V ＝13×2×2×⎝⎛⎭⎫2×322－12＝423(cm 3)．11. 12 [解析]由AB ∥CD ，知△ABE ∽△CDE ，则AB CD ＝AEEC ＝2.又AC ＝310，所以AE＝2EC ＝210.由tan A ＝3，A ∈(0，π)，得sin A ＝31010，cos A ＝1010.在△ABE 中，BE 2＝AE 2＋AB 2－2AE·AB·cos A ＝52，所以BE ＝213，cos ∠ABE ＝AB 2＋BE 2－AE 22AB·BE ＝21313，所以BE →·CD →＝|BE →|·|CD →|·cos ∠ABE ＝213×3×21313＝12.12. 16 [解析]作出函数f(x)＝|x 2－6|的图象如图所示，由a>b>0，f(a)＝f(b)，得a 2－6＝6－b 2，0<b<6，即a 2＝12－b 2，所以a 2b ＝12b －b 3.令g(b)＝12b －b 3，0<b<6，则g′(b)＝12－3b 2，令g′(b)＝0，得b ＝2(负值舍去)．当0<b<2时，g′(b)>0，g(b)单调递增；当2<b<6时，g′(b)<0，g(b)单调递减，所以当b ＝2时，g(b)取得最大值g(2)＝16，故a 2b 的最大值为16.(第12题)13. －22 [解析]由题知cos A sin A ＋cos B sin B ＋sin C cos C ＝0，即－sin C cos C ＝cos A sin B ＋cos B sin Asin A sin B ＝sin （A ＋B ）sin A sin B ＝sin Csin A sin B ，因为sin C ≠0，所以－cos C ＝cos (A ＋B)＝cos A cos B －sin A sin B＝sin A sin B ，所以tan A tan B ＝12.因为A ，B 为斜三角形ABC 的两个内角，所以tan A>0，tanB>0，所以－tan C ＝1tan A ＋1tan B≥21tan A ·1tan B＝22，所以tan C ≤－2 2. 14. ⎣⎡⎭⎫41015，＋∞ [解析]由题知圆心C(3，2)，如图，设点C 到直线3x ＋y ＝3的距离为d ，则d ＝|3×3＋2－3|32＋12＝4105.当MN 为圆C 的直径时，由图知MP ＝MN ＝2r ，即CP －r＝2r ，CP ＝3r ，又CP ≥d ＝4105，所以r ≥41015.(第14题)15. (1) 因为cos α＝437，α∈⎝⎛⎭⎫0，π2，所以sin α＝1－cos 2α＝1－⎝⎛⎭⎫4372＝17，所以sin ⎝⎛⎭⎫π4＋α＝sin π4cos α＋cos π4sin α＝22×437＋22×17＝46＋214. (2) 因为α∈⎝⎛⎭⎫0，π2，β∈⎝⎛⎭⎫0，π2，所以α＋β∈(0，π)，所以sin (α＋β)>0. 因为cos (α＋β)＝1114，所以sin (α＋β)＝1－cos 2（α＋β）＝1－⎝⎛⎭⎫11142＝5314，所以cos β＝cos [(α＋β)－α]＝cos (α＋β)cos α＋sin (α＋β)sin α＝1114×437＋5314×17＝32.因为β∈⎝⎛⎭⎫0，π2，所以β＝π6. 16. (1) 如图，连接CE ，交DF 于点G ，连接MG ，(第16题)因为在矩形CDEF 中，DF ∩EC ＝G ， 所以G 为EC 的中点． 又因为M 为AE 的中点，所以MG 为△EAC 的中位线， 所以MG ∥AC ，因为AC ⊄平面DMF ，MG ⊂平面DMF ， 所以AC ∥平面DMF.(2) 在矩形CDEF 中，CD ⊥ED ， 因为∠ADC ＝90°，所以CD ⊥AD ，因为AB ∥CD ，所以AB ⊥ED ，AB ⊥AD.因为AD ∩ED ＝D ，AD ⊂平面ADE ，ED ⊂平面ADE ，所以AB ⊥平面ADE. 因为MD ⊂平面ADE ，所以MD ⊥AB. 因为DE ＝DA ，M 为AE 中点， 所以MD ⊥AE ，因为AB ∩AE ＝A ，AB ⊂平面ABE ， AE ⊂平面ABE ，所以MD ⊥平面ABE ， 因为BE ⊂平面ABE ，所以BE ⊥DM.17. (1) 如图，过点G 作GM ⊥AB 于点M ，连接OH ， 因为∠GOB ＝60°，所以GM ＝OG·sin 60°＝32r. 又∠BOC ＝θ，所以BC ＝r sin θ，OB ＝r cos θ， 所以GF ＝GM －BC ＝32r －r sin θ. 由对称性知AB ＝2OB ＝2r cos θ， ∠HOA ＝∠GOB ＝60°， 所以∠HOG ＝60°，则△OHG 为等边三角形， 所以GH ＝OG ＝r ， 所以S 矩形ABCD ＝AB·BC ＝(2r cos θ)·r sin θ＝2r 2sin θcos θ，S 矩形EFGH ＝GH·GF ＝r·⎝⎛⎭⎫32r －r sin θ＝32r 2－r 2sin θ，所以f(θ)＝S 矩形ABCD ＋S 矩形EFGH ＝2r 2sin θcos θ＋32r 2－r 2sin θ(0<θ<π3)． (2) 由(1)得f(θ)＝r 2(2sin θcos θ－sin θ＋32)， 所以f′(θ)＝r 2(2cos 2θ－2sin 2θ－cos θ)＝r 2(4cos 2θ－cos θ－2)． 令f′(θ)＝0，则4cos 2θ－cos θ－2＝0， cos θ＝1±338.因为θ∈⎝⎛⎭⎫0，π3，即cos θ∈⎝⎛⎭⎫12，1， 所以cos θ＝1＋338.令θ0∈⎝⎛⎭⎫0，π3，cos θ0＝1＋338， 则当θ变化时，f(θ)，f′(θ)的变化情况如下表：所以f(θ)max ＝f(θ0)．答：当cos θ＝1＋338时，可使市民活动广场及停车场的占地总面积最大．(第17题)18. (1) 因为离心率e ＝c a ＝12，所以a ＝2c.因为a 2＝b 2＋c 2，所以b ＝3c ， 所以椭圆C ：x 24c 2＋y 23c2＝1.因为点P ⎝⎛⎭⎫1，32在椭圆上， 所以14c 2＋34c 2＝1，解得c ＝1，所以椭圆C ：x 24＋y 23＝1.(2) 设M(x 1，y 1)，N(x 2，y 2)， 直线l ：y ＝kx ＋1(k>1)，联立⎩⎪⎨⎪⎧x 24＋y 23＝1，kx －y ＋1＝0，消去y 得(4k 2＋3)x 2＋8kx －8＝0，则⎩⎪⎨⎪⎧x 1＋x 2＝－8k4k 2＋3，x 1·x 2＝－84k 2＋3，因为k 1＝y 1x 1＋2，k 2＝y 2x 2－2，且k 1＝2k 2，所以y 1x 1＋2＝2y 2x 2－2，即y 21（x 1＋2）2＝4y 22（x 2－2）2. ① 又因为M(x 1，y 1)，N(x 2，y 2)在椭圆上， 所以⎩⎨⎧y 21＝34（4－x 21），y 22＝34（4－x 22）.②将②代入①可得2－x 12＋x 1＝4（x 2＋2）2－x 2，即3x 1x 2＋10(x 1＋x 2)＋12＝0， 所以－244k 2＋3－80k4k 2＋3＋12＝0，即12k 2－20k ＋3＝0， 解得k ＝16或k ＝32.又因为k>1，所以k ＝32.19. (1) 由题意得a 1＝1，a 2＝2， a 3＝a 1＋d ＝1＋d ，a 4＝a 2q ＝2q ， a 5＝1＋2d ，所以S 3＝a 1＋a 2＋a 3＝1＋2＋(1＋d)＝4＋d. 因为S 3＝a 4，a 5＝a 2＋a 3，所以2q ＝4＋d ，1＋2d ＝3＋d ， 解得d ＝2，q ＝3，所以a n ＝⎩⎪⎨⎪⎧n ， n 为奇数，2·3n 2－1， n 为偶数.(2) 1° 当m ＝2k －1(k ∈N *)时，因为a m a m ＋1＝a m ＋2，所以(2k －1)·2·3k －1＝2k ＋1， 所以2·3k －1＝2k ＋12k －1＝1＋22k －1，因为2·3k－1为整数，所以22k －1必为整数，所以2k －1＝1，所以k ＝1，此时2·3k －1≠3，不合题意． 2° 当m ＝2k (k ∈N *)时，因为a 2k a 2k ＋1＝a 2k ＋2，所以2·3k －1·(2k ＋1)＝2·3k ， 即2k ＋1＝3，所以k ＝1，即m ＝2.(3) S 2m ＝m （1＋2m －1）2＋2（1－3m ）1－3＝3m＋m 2－1，S 2m －1＝S 2m －a 2m ＝m 2＋3m －1－2·3m －1＝m 2＋3m －1－1，所以S 2mS 2m －1＝m 2＋3m －1m 2＋3m －1－1 ＝3－2（m 2－1）3m －1＋m 2－1≤3.若S 2mS 2m －1为数列{a n }中的项，则只能为a 1，a 2，a 3. ①当S 2mS 2m －1＝1时，3－2（m 2－1）3m －1＋m 2－1＝1，所以3m －1＝0，m 无解．②当S 2mS 2m －1＝2时，3－2（m 2－1）3m －1＋m 2－1＝2，所以3m －1＋1－m 2＝0.当m ＝1时，等式不成立； 当m ＝2时，等式成立；当m ≥3时，令f (x )＝3x －1＋1－x 2＝13·3x ＋1－x 2，所以f ′(x )＝ln 33·3x －2x ，f ″(x )＝ln 233·3x－2.当x ≥3时，f ″(x )>0，f ′(x )在[3，＋∞)上单调递增．又f ′(3)＝9ln 3－6>0，所以f ′(x )＞0在[3，＋∞)上恒成立， 所以f (x )在[3，＋∞)上单调递增．因为f (3)＝1>0，所以当m ≥3时，方程3m －1＋1－m 2＝0无解．③当S 2mS 2m －1＝3时，3－2（m 2－1）3m －1＋m 2－1＝3，所以m 2－1＝0，即m ＝1.综上所述，存在正整数m ＝1或2，使得S 2mS 2m －1恰好为数列中的一项．20. (1) 函数f(x)＝x 2是“恒切函数”，设切点为(x 0，y 0)，则⎩⎪⎨⎪⎧f （x 0）＋kx 0＋b ＝kx 0＋b ，f′（x 0）＋k ＝k ，所以⎩⎪⎨⎪⎧f （x 0）＝0，f′（x 0）＝0.对于函数f(x)＝x 2，f′(x)＝2x ，设切点为(x 0，y 0)，所以⎩⎪⎨⎪⎧x 20＝0，2x 0＝0，解得x 0＝0，所以f(x)＝x 2是“恒切函数”． (2) 设切点为(x 0，y 0)，因为f′(x)＝mx ＋n ，所以⎩⎪⎨⎪⎧m ln x 0＋nx 0＝0，m x 0＋n ＝0，解得ln x 0＝1，即x 0＝e ，所以实数m ，n 满足的关系式为m ＋e n ＝0. (3) 设切点为(x 0，y 0)， 因为f′(x)＝(2e x －x －2)e x ，所以⎩⎪⎨⎪⎧（e x 0－x 0－1）e x 0＋m ＝0，（2e x 0－x 0－2）e x 0＝0，所以⎩⎪⎨⎪⎧m ＝－（e x 0－x 0－1）e x 0，2e x 0＝x 0＋2.设g(x)＝2e x －x －2，令g′(x)＝2e x －1＝0，得x ＝－ln 2.当x ∈(－∞，－ln 2)时，g′(x)<0，g(x)单调递减；当x ∈(－ln 2，＋∞)时，g′(x)>0，g(x)单调递增，所以g(x)min ＝g(－ln 2)＝ln 2－1<0. ①当x ∈(－∞，－ln 2)时，因为g(－2)＝4e 2>0，g(－1)＝2e －1<0，所以g(x)在(－∞，－ln 2)上有唯一零点x 0∈(－2，－1)． 又m ＝－(e x 0－x 0－1)e x 0＝14x 0(x 0＋2)，所以m ∈⎝⎛⎭⎫－14，0. ②当x ∈(－ln 2，＋∞)时，因为g(0)＝0，所以g(x)在(－ln 2，＋∞)上有唯一零点0，所以m ＝0.综上所述，m ∈⎝⎛⎦⎤－14，0.。
2020年9月江苏省苏州四市五区2021届高三上学期期初调研测试英语试题及答案
绝密★启用前江苏省苏州四市五区2021届高三年级上学期期初调研测试英语试题2020年9月注意事项：1.本试卷满分150分，考试时间 120分钟。
2.答题前，务必将自己的学校、姓名、考试号等相关信息写在答题卡上规定的地方。
3.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦净后，再选涂其他答案标号，回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What does the man want the woman to do?A.Attend the party.B.Invite more people.C.Prepare the food.2.What are the couple talking about?A.Drinking tea.B.Buying a gift.C.Having a habit.3.When will they ask Ken for dinner?A.Next Friday.B.This Thursday.C.This Friday.4.How much did the woman pay?A.100 dollars.B.80 dollars.C.50 dollars.5.Where does the conversation probably take place?A.In a supermarket.B.In a hospital.C.In a restaurant.第二节（共15题；每小题1.5分，满分22.5分）听下面5段对话或独白。
江苏省苏州四市五区2021届高三英语上学期期初调研 (含解析)
江苏省苏州四市五区2021届高三英语上学期期初调研（含解析）注意事项：1.本试卷满分150分，考试时间 120分钟。
2.答题前，务必将自己的学校、姓名、考试号等相关信息写在答题卡上规定的地方。
3.回答选择题时，选出每小题答案后，用铅笔把答题卡上对应题目的答案标号涂黑。
如需改动，用橡皮擦净后，再选涂其他答案标号，回答非选择题时，将答案写在答题卡上，写在本试卷上无效。
第一部分听力（共两节，满分30分）做题时，先将答案标在试卷上。
录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。
第一节（共5小题；每小题1.5分，满分7.5分）听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
1.What does the man want the woman to do?A.Attend the party.B.Invite more people.C.Prepare the food.2.What are the couple talking about?A.Drinking tea.B.Buying a gift.C.Having a habit.3.When will they ask Ken for dinner?A.Next Friday.B.This Thursday.C.This Friday.4.How much did the woman pay?A.100 dollars.B.80 dollars.C.50 dollars.5.Where does the conversation probably take place?A.In a supermarket.B.In a hospital.C.In a restaurant.第二节（共15题；每小题1.5分，满分22.5分）听下面5段对话或独白。
江苏省苏州市2024届高三上学期期初调研测试英语答案解析
2024届苏州四市五区高三期初考试解析（附原创作文2篇）答案汇总：听力1-5 CABAB6-10 ACCBA11-15 BCABC16-20 ACCBB传统阅读21-23 BCB24-27 CADC28-31 ABDA32-35 ACDB7选5阅读36-40 BDCFG完形填空41-45 CADBA46-50 BBCBA51-55 DBCDA语法填空56. that / which57. expected58. what59. a60. is scheduled61. With62. reveals63. generals64. adding65. valuable / invaluable01阅读答案：21-23 BCB24-27 CADC28-31 ABDA32-35 ACDBA篇主要向读者介绍了一些形式不一但都别具特色的艺术项目。
B篇主要向我们介绍了世界第一个自然河流公园的相关事项，主要包括其所在地区的自然环境、河流公园的成形过程以及其成就、特色。
C篇主要打破了普遍认知，通过一位心理学家的实验介绍了被打断的好处，也介绍了蔡格尼克记忆效应的应用，呼吁我们享受并利用好被打断。
D篇是科学研究类题目，介绍了科学家通过改变蚊子基因来控制疟疾，并从实验原理、实验过程、实验评价多方面进行介绍。
详细解析：A篇第21题B 根据本篇文章的小标题kinship和Family Memory Box都与家人、亲属有关，而两场展览也都是围绕着家人与亲属进行展开，故二者属于同一个主题。
第22题C 定位到文章A Tour in ASL这个部分，由该段标题可知本次展览是Virtual Portrait Signs，故是虚拟而不是实地展览，A选项错误；定位该段第一、二行which is first major Smithsonian museum to examine the War, 而D选项少了限定条件，故错误；由这一部分的第二段The Zoom link will be emailed on the morning of the program...可知，参观者可以通过Zoom进行展览的参观而不是以邮件的形式，邮件的形式主要是用于解决参观者的疑问，故B错误。
2023届江苏省苏北四市(徐州连云港宿迁淮安)高三上学期第一次调研测试英语试题(含答案解析)
2023届江苏省苏北四市（徐州连云港宿迁淮安）高三上学期第一次调研测试英语试题（含听力）学校:___________姓名：___________班级：___________考号：___________一、短对话1．What does the girl like about her parents?A．They are strict.B．They are rich.C．They are caring.2．How much does the keyboard cost now?A．$40.B．$50.C．$20.3．Why does the boy refuse the girl’s offer?A．He has a doctor’s appointment.B．He needs to go to see his family.C．He has been to the beach before.4．What are the speakers doing?A．Making dinner.B．Ordering some food.C．Shopping for a party.5．What does the man want to know?A．How to make desserts.B．How to solve problems.C．How to understand expressions.二、长对话听下面一段较长对话，回答以下小题。
6．What is the man’s advice for the woman’s trip?A．She really should go to Pisa.B．She should only stay in Rome.C．She should also check out Venice.7．How much time will the woman probably spend in Rome?A．Two days.B．Five days.C．Seven days.听下面一段较长对话，回答以下小题。
江苏省苏州市2019届高三上学期期末考试英语试卷(,含答案)
2019届高三模拟考试试卷英语2019.1本试卷分第Ⅰ卷(选择题)和第Ⅱ卷(非选择题)两部分。
满分120分，考试时间120分钟。
第Ⅰ卷(选择题共85分)第一部分：听力(共两节，满分20分)第一节(共5小题；每小题1分，满分5分)听下面5段对话。
每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。
每段对话仅读一遍。
()1. Where does the conversation probably take place？A. In a furniture store.B. In a restaurant.C. In a bank.()2. What is the man doing？A. He is quitting his job.B. He is asking for sick leave.C. He is investing time and money.()3. When does the film begin？A. At 5：40.B. At 5：50.C. At 6：00.()4. What is the relationship between the speakers？A. Doctor and patient.B. Teacher and student.C. Salesperson and customer.()5. What does the man mean？A. Better late than never.B. Love me love my dog.C. Tomorrow is another day.第二节(共15小题；每小题1分，满分15分)听下面5段对话或独白。
每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。
听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，各小题将给出5秒钟的作答时间。
2020届江苏省苏州市高三上学期期期初调研英语试题 word版
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苏州市2019～2020学年第一学期高三期初调研试卷 英 语 2019. 9
第I卷 (选择题，共85分) 第一部分：听力理解 (共两节，满分20分) 做题时，请先将答案标在试卷上。录音内容结束后，你将有两分钟的时间将试卷上的答案转涂到答题卡上。 第一节 (共5小题；每小题1分，满分5分) 听下面5段对话。每段对话后有一个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听完每段对话后，你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 1. What will the weather be like according to the radio? A. Sunny. B. Rainy. C. Windy. 2. Who will pay the bill? A. The boss. B. Tom. C. The woman. 3. How did the woman feel? A. Nervous. B. Excited. C. Upset. 4. What can we learn about the man? A. He did well in spelling. B. He couldn’t spell the words. C. He was satisfied with the result. 5. How much should the man pay for his room? A.150 pounds. B.110 pounds. C.100 pounds. 第二节 (共15小题；每小题1分，满分15分) 听下面5段对话或独白。每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。听每段对话或独白前，你将有时间阅读各个小题，每小题5秒钟；听完后，
注意事项： 1．本试卷分为第一卷(选择题)和第二卷(非选择题)，满分120分。考试时间120分钟。 2．请将第一卷的答案填涂在答题卡上，第二卷请直接在答题卡上规定的地方作答。答题前，务必将自己的学校、姓名、考试号等相关信息写在答题卡上规定的地方。 页 2第