山东省烟台市2017届高三3月高考诊断性测试(一模)英语试题

山东省烟台市2017届高三文综3月诊断性测试（一模）试题（扫描版）2017年高考诊断性测试文综试题参考答案选择题 (共35小题，每小题4分，共140分)1.D2.C3.A4.D5.B6.B7.A8.D9.B 10.A 11.C12.B 13.A 14.A 15.D 16.C 17.D 18.C 19.C 20.D 21.A 22.B 23.D24.B 25.D 26.B 27.A 28.C 29.A 30. C 31.C 32.B 33.B 34.C 35.D非选择题共10题（含选考题），共160分36.（24分）（1）受暖流（北大西洋暖流）影响，增温增湿（3分）；四面环海，受海洋的调节作用，气温变化缓和，延长了花期（3分）。

（2）地处冰岛低压附近（3分），锋面气旋活动频繁，风力强劲（3分）（或冬季南北温差大（3分），气压梯度力变大，风力强度变大。

（3分））（3）蜜源来自野花，基本不受农药、化肥污染（2分）；冰岛纬度高，冬季气温低，植物病虫害少（2分）；冰岛空气清新，水质好，环境质量优良（2分）。

（4）可行理由：冰岛地处高纬度地区，气候寒冷，植被稀少，蜜源植物少（3分）；地热资源丰富，可栽培温室蜜源植物满足采蜜需要（3分）。

不可行理由：栽培温室蜜源植物，投入多，成本高（3分）；栽培温室蜜源植物，病虫害多，相比野花采蜜，品质下降（3分）。

37.（22分）（1）推出新的人口政策，放宽入户条件（必答，2分）；产业升级后，就业的稳定性增加（失业的风险降低）（必答，2分）；教育资源和住房、交通等基础设施的增加和完善；社会养老、医疗保险等保障制度的调整；治理污染，环境改善。

（任答一点可得2分）（2）劳动密集型企业（低端制造业）（2分）。

工人工资上涨，地价、房价上涨，用工成本上升，不堪重负，部分企业出现倒闭或外迁（3分）；部分企业自主研发能力弱，缺少核心技术和专利产品，技术老化，更新换代慢（3分）。

（3）可以利用当地的人才和技术（2分）；了解当地市场，可以更好的满足当地顾客的需求（2分）；降低成本（外派人员的费用，物流成本，管理成本），提高效益（2分）；利用当地劳动力，享受政策优惠（2分）。

2017年高考诊断性测试英语试题说明：本试卷分第I卷(选择题)和第II卷(非选择题)，共12页。

满分150分。

考试用时120分钟。

第I卷和第II卷答案全部涂写在答题卡上，考试结束后，只交答题卡。

第I卷第一部分听力(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．Who kept the school record before the sports meeting?A．The man．B．The woman．C．Jerry．2．How much should you pay for only one chair?A．40yuan．B．35yuam．C．70yuan．3．What does the man think of David’s success in the examination? A．Disappointing．B．Unexpected．C．Fortunate．4．Why did the man miss the last period of the match?A．Because the match was not exciting．B．Because he had to go to work．C．Because he thought it was over．5．What are the two speakers going to buy?A．Bread．B．Cheese．C．Eggs．第二节(共15小题；每小题1.5分，满分22.5分)听下面5段对话或独白。

每段对话或独白后有几个小题，从题中所给的A、B、C三个选项中选出最佳选项，并标在试卷的相应位置。

山东省烟台市2017届高三数学3月诊断性测试（一模）试题文（扫描版）2017年高考诊断性测试 文科数学参考答案一、选择题A DB BC AD B C C 二、填空题11. 68 12.0120 13.33π 14. (],4-∞- 15. ③ 三、解答题16.解：（1）()f x 1cos 21=222-+-x x =sin(26π-）x , …………………3分 由 3222,262k x k k πππππ+≤-≤+∈Z ， 得5,36k x k k ππππ+≤≤+∈Z ， …………………5分所以()x f 的单调递减区间为5[,]()36k k k ππππ++∈Z . ………………6分 （2）由（1）知()sin(2)6π=-f x x ,当()0,π∈x 时，112666πππ-<-<x , 结合正弦函数图象可知，当262x ππ-=，即3x π=时()x f 取得最大值.因为()f A 是()f x 在(0,)π上的最大值，所以3π=A . …………………8分在ABC ∆中，由余弦定理得 A bc c b a cos 2222-+=， 即 214216122⨯⨯-+=b b , 解得 2b =, …………………10分 于是11sin 24sin 602322ABC S bc A ∆==⨯⨯=. …………………12分 17.(1)证明：因为在平面ABCD 内以BD 为直径的圆经过点A ,AD AB =，所以平行四边形ABCD 为正方形，所以BC AB ⊥ ,因为⊥EA 平面ABCD ，又⊂BC 平面ABCD ,所以⊥EA BC . ……………………2分 因为⊥BC EA ，BC AB ⊥，=EAAB A ，EA ⊂平面ABEG ,AB ⊂平面ABEG ,所以BC ⊥平面ABEG ， 又EF ⊂平面ABEG ,所以BC EF ⊥. …………………4分 因为在三角形EAG 中，2==EA EG ，F 为AG 的中点 所以⊥EF AG又在平行四边形ABEG 中，//BE AG ，所以⊥EF BE . …………………6分 因为⊥EF BC ，⊥EF BE ，BCBE B =，BE ⊂平面BCE ，BC ⊂平面BCE ，所以EF ⊥平面BCE ， ……………………7分 又EF ⊂平面EFP ，所以平面EFP ⊥平面BCE . ……………………8分(2)解：由（1）知EF ⊥平面BCE ，所以EF 是三棱柱ADG BCE -的高， …………………10分所以1242ADG BCE BCE V S EF -∆=⋅=⨯⨯=. …………………12分 18.解：（1）由题意，可知100.012100.056100.018100.010101x +⨯+⨯+⨯+⨯=，∴0.004x =． ……………………2分 （2）甲部门服务情况的满意度为0.056100.018100.010100.84⨯+⨯+⨯=． …………………3分乙部门服务情况的满意度为610.8850-=． …………………5分 ∴乙部门服务情况的满意度较高. ……………………6分 （3）由题意，设乙部门得分为[)[)50,60,60,70的6个样本数据从小到大依次为121234,,,,,A A B B B B ．则随机抽取两个样本数据的所有基本事件有：{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}121112131421222324121314232434,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,A A AB A B A B A B A B A B A B A B B B B B B B B B B B B B 共15个． ………………… 9分 其中“至少有一个样本数据落在[)50,60内”包含{}{}{}{}{}1211121314,,,,,,,,,,A A A B A B A B A B {}{}2122,,,A B A B {}{}2324,,,,A B A B共9个基本事件． ……………………11分 ∴至少有一个样本数据落在[)50,60内的概率为93155P ==. ………………12分 19.解：（1）由已知，22n S n n =+，当2n ≥时，221(2)[(1)2(1)]21n n n a S S n n n n n -=-=+--+-=+，…………………2分当1n =时，13a =，适合上式，所以21n a n =+. ……………………4分 由于11=3b a =，24=9b a =，所以公比3q =，所以3nn b =. ……………………6分（2） (1)=(1)(21)3n n nn n n c a b n =-+-++,当n 为偶数时，n T =[(35)(79)+-(21)(21)]n n -++-+-++23+(3+3+3+3)+n3(13)=2213⨯-⨯+-n n 133=22n n ++-. ……………9分当n 为奇数时，1-n 为偶数，()()()(1)1133T =T [1]121322n n n n n c n n -+-+=+--+-⨯++137.22n n +=--………………11分综上所述，1133,22T 3722n n n n n n n ++⎧+-⎪⎪=⎨⎪--⎪⎩为偶数,,为奇数. ………………12分20. 解：（1） 抛物线24y x =的焦点为10（，），1∴=c ………………2分 又椭圆上的点到F 的最大距离为3+=a c ，2∴=a . …………………4分由222=+a b c，知=b 所以椭圆C 的方程为22143x y +=. …………………5分(2)设直线AB 的方程为1x my =+，由221431x y x my ⎧+=⎪⎨⎪=+⎩整理得22(43)690m y my ++-=， …………7分 设直线l 与椭圆C 的交点为()()1122,,A x y B x y ，，则有 12122269,4343m y y y y m m +=-=-++ ， ………………………8分 于是∆OAB 的面积1212=-S OF y y ………………………9分==， ……………10分(1)t t ≥， 于是()266=11313)3=≥++（t S t t t t，令()()113f t t t t =+≥，()2221311033-'=-=>t f t t t， 所以()13=+f t t t 在[1,)+∞单调递增，所以当1t =时，13t t +取最小值43，()6==113)3S t t t≥+（取最大值32所以∆OAB 的面积S 最大值为32. ………………13分 21. 解：（1）1()ln ln 1f x x x x x'=+⋅=+，当1x =时，(1)1f '=， 所以()ln f x x x =在1x =处的切线方程为：1y x =-， …………2分 联立212y x y x ax =-⎧⎨=-+-⎩，消y 可得，2(1)10x a x +-+=， 由题意可知，2(1)40a =--=V ，所以31a =-或； ………………………………4分(2)由（1）知'()ln 1f x x =+，当1(0,)x e∈，'()0f x <，()f x 单调递减，当1(,)x e∈+∞，'()0f x >，()f x 单调递增． …………………………6分①1104e t t <<+≤，即110e 4t <≤-时，min 111()()()ln()444f x f t t t =+=++； ② 110e 4t t <<<+，即111e 4et -<<时，min 11()()f x f e e ==-；③11e 4t t ≤<+，即1t e ≥时，()f x 在1[,]4t t +上单调递增，min ()()ln f x f t t t ==；所以min1111()ln()044e 41111()e e 4e 1ln ,e t t t f x t t t t ⎧++<≤-⎪⎪⎪=--<<⎨⎪⎪≥⎪⎩，，． ……………………………9分 （3）设2()((0,))x x m x x e e=-∈+∞，则1'()x x m x e -=， ……………………………10分 当(0,1)x ∈时，()0m x '>,()m x 单调递增； 当(1,)x ∈+∞时，()0m x '<,()m x 单调递减，可得max 1()(1)m x m e==-，当且仅当1x =时取到. …………12分由（2）知()ln ((0,))f x x x x =∈+∞的最小值是1e -，当且仅当1x e=时取到.因此当(0,)x ∈+∞时，()()min max 1ef x m x ≥-≥恒成立. 又两次最值不能同时取到，所以对一切(0,)x ∈+∞，都有2ln e ex x x x >-.……14分。

英语试题说明：本试卷分第1卷（选择题）和第1I卷（非选择题）。

满分150分。

考试用时120分钟。

非网上阅卷的学校，第1卷答案涂写在答题卡上，第1I卷在答题纸上做答，考试结束后，考生只交答题卡和答题纸；网上阅卷的学校，第1卷和第1I卷答案全部涂写在答题纸上，考试结束后，只交答题纸。

第Ⅰ卷（共105分）注意事项：1．答第1卷前，考生务必将自己的姓名、准考证号、考试科目涂写在答题卡纸上。

2．每小题选出答案后，用铅笔把答题卡／纸上对应题目的答案标号涂黑。

如需改动，用橡皮擦干净后，再选涂其它答案标号。

第I卷（共105分）第一部分：听力（共两节，满分30分）做题时，先将答案划在试卷上。

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．How will the man get in touch with Laura?A．By calling her．B．By writing an e—mail．C．By sending a short message．2．Where is the party tonight?A．In the boats． B．By the trees． C．In the beach club．3．What can we learn from the conversation?A．The boy broke the nice picture．B．The cat broke the milk bottle．C．Mum was hurt by the glass pieces．4．What does the man mainly doin his spare time?A．Do some sports．B．Play the violin．C．Learn a language．5．When will the two speakers meet?A．At 9：30．B．At 10：00．C．At 10：30．第二节（共15小题；每题1．5分，满分22．5分）听下面5段对话或独白。

试卷第1页，共12页绝密★启用前2017届山东省烟台市高三3月高考诊断性测试（一模）语文试卷（带解析）试卷副标题考试范围：xxx ；考试时间：36分钟；命题人：xxx学校:___________姓名：___________班级：___________考号：___________注意事项．1．答题前填写好自己的姓名、班级、考号等信息 2．请将答案正确填写在答题卡上第I 卷（选择题）试卷第2页，共12页第II 卷（非选择题）一、语言表达（题型注释）1、近日，江苏省盐城市公安局交警支队官方微博“盐城交警”发出一张海报，提醒骑电动车的人们遵守交通规则：“像我们这个年纪，骑电动车一定要记住戴安全头盔，路口遇到红灯一定要及时停车不越线，否则会被开奔驰、宝马的同学认出来。

” 请你对以上微博进行评论。

要求态度鲜明，语言简练，不超过45个字。

2、国务院办公厅在《关于进一步促进旅游投资和消费的若干意见》中提出“周五下午加周末”的2.5天休假方式，“为职工周五下午、周末结合外出休闲度假创造有利条件”。

下图是某平面媒体对上述休假方式进行的形象解读，请用一句话概括图中主要信息。

不超过30个字。

3、将下列句子依次填入文中的横线处，使上下文语意连贯。

只填序号。

工匠精神源远流长，在传统文化中不难寻其踪迹。

______，______，_____。

______，_______，_______。

这种人才发展的不均衡，让中国创造遭遇了“人才瓶颈”，抑制了社会创新创造活力的进发。

①例如上海市的一项调查显示，仅有1％的被调查者愿意当工人②从庄子的“技进乎道”到魏源的“技可进乎道，艺可通乎神”，这些古代名言中所提到的“技”，指的其实就是工匠精神③与之相对应的另一个现实是，“高级技工万金难求”之类的新闻时常见诸报端 ④正是技术从业者们精益求精、追求完美的态度，让生产过程成为类似工艺品的雕琢过程，创造了我国传统手工业曾经的辉煌⑤工匠精神体现在将产品品质“从99％提高到99.9 %”的过程中，是认真、执着、精细、完美的代名词试卷第3页，共12页⑥遗憾的是，这些年在“君子不器”、白领崇拜等观念的影响下，越来越多的人不愿从事与技术打交道的蓝领工作二、（题型注释）4、下列各句中，没有语病、句意明确的一项是A ．世界卫生组织驻华代表施贺德在接受新华社记者采访时表示，他坚信中国的空气污染问题在接下来的5到10年里会有非常明显的改善。

2017年高考适应性练习(一)英语试题说明：本试卷分四部分，共12页，满分150分。

考试用时120分钟。

答案全部涂写在答题纸上，考试结束后，只交答题纸。

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。

例：How much is the shirt?A．19．1 5 pounds．B．9．15 pounds．C．9．18 pounds．答案是B。

1．When does the man expect the woman to pick him up?A．At 6：00．B．At 6：15．C．At 6：30．2．Why did so many old people die last month?A．It was too cold．B．It was too hot．C．They were too old．3．What has caused the sales to go down?A．Low production．B．Poor management．C．Foreign competition．4．Where does the conversation most probably take p lace?A．In a hotel．B．In a hospital．C．In an office building．5．What do we know about the woman?A．She used to work in a car company．B．She wishes to find another new job．C．She’s expecting her manager’s opinion on her job．第二节(共15小题；每小题1.5分，满分22.5分)听下面5段对话或独白。

2016－2017学年度第一学期高三期末自主练习英语试题答案第一部分：听力1-5ACBCB 6-10ABCBC 11-15ACCBA 16-20ACBCA第二部分：阅读理解21-24CABA 25-27CAA 28-31DABD 32-35BDCD36-40GFDCA第三部分第一节：完形填空41-45ABADC 46-50DCCAB 51-55DCABD 56-60BDCAB第三部分第二节：语法填空61. looks 62. was created 63. it 64. to control 65. to66. fully 67.problems 68.when 69. causing 70. made第四部分第一节：短文改错Dear Declan,There are several English papers aim at helping us learn English, the best of that is Englishaimed或前加that/which whichWeekly.I have been using the paper since I had studied English. It iseditedaccording to textbooks,soit is especially fit︿us students. Besides, the paper is rich with contents, whose articles include for inforeign cultures, interesting story, technology, environmental protection and so on. Plenty ofstoriesnecessary exercises are also providing for us to strengthen our skills. With the help of the paper,providedwe can broaden our horizons and enrich our knowledge great. So it can help improve us English.greatly ourI wonder if you are interested in this paper or not.whether(不改也得分)I’m looking forward to your reply.Yours,Li Hua(说明：由于设置的第10处错误if改whether不正确，因为if本身正确，所以此题阅卷时改对9处即可得满分)第四部分第二节：书面表达(One possible version):Dear Mr. Wu,I’m Li Hua, a member of our school English Club. I’m glad to learn a host is needed for an English evening, which will be held to welcome the new foreign teacher Ms. Jerry. Now I’m writing to apply for the host position.As you know, I was Chairman of the Host Club when I’m in Senior 2. What’s more, English is my favorite subject, and I’m especially excellent at spoken English. I have won the first prize in the Oral English Contest in our school. Definitely I’ll be qualified for the host position, and I would appreciate it very much if I could get the opportunity.Looking forward to your early reply.Yours,Li Hua附：听力录音材料1. W: Oh no! Look at the queue!M: I didn't realize it was such a popular film.W: Hurry up, or we'll never get in!2. M: I’ve a bad he adache. Maybe I need more sleep.W: Actually you need less sun and some medicine. And it would help if you wore a hat. The sun is too bright.3. W: Well, Mr. Anderson, you are at great risk since you smoke and drink too much.M: Am I in a serious condition, doctor?W: Yes, absolutely. It might be a good idea if you give up smoking and drinking as well.M: Oh, dear... I’m afraid that’s out of the question.4. M: Well, I’m glad I have a chance to see the computer software, but I'm really not in theposition to make the decision right now.W: Would you like me to leave the software with you?M: Yeah. Why don’t you do that, and then you can give me a call sometime next week.5. M: Do you have time to stop for lunch?W: Yes, I'm hungry. This restaurant has a good selection and the prices are moderate.M: That sounds fine with me. Let's try it.6. M: Now, let’s get on board.W: After you.M: Here is your seat.W: Oh, it’s by the window. I’ll be able to see the whole city below.M: I hope we have a safe journey.W: Yes. The weather forecast promises us good flying weather. So we needn’t worry about it. 7. W: What are you doing here?M: I’m buying a new cell phone.W: On the computer?M: Yeah, I like to shop on the Internet.W: Oh, yeah?M: Sure, Internet s hopping is great because it’s easier to compare prices, so you can save money.The cell phone I want costs $1200 in the stores, but I found it on the Internet for only $900. W: That’s a good deal— you save $300.M: Yeah, and it’s a lot easier than shopping in the stores. You don’t have to leave your house.You just send in your credit card information and they send it to your home.W: That’s true—but I’d rather pay cash than use my credit card. And I don’t like sending my credit card information over the Internet.8. W:Robert,you play the guitar,don't you?M:I used to.But I haven't played it for quite some time.I don't really have time these days with all my studies.Why do you ask?W:I'm trying to organize a group to play at some parties on weekends.We still need a guitar player.M:Well,I don't know.But your idea sounds fun to me.W:Oh,it will be.I'm more or less in charge of things,so if you want to give it a try,you're in.It's as easy as that.Besides,it's a great chance to get out and meet people.M:But I told you I haven't practiced for a long time.I don't know if I remember any songs I used to play.W:Don't worry about it.I just thought I'd ask you to try and join us sometime when we were practicing.We'll be practicing for a few months before we give performances.M:OK,I'll have a try.W:I'm sure you can do it.And it will be fun,too.9. W: Good morning. What can I do for you?M: Good morning. I was wondering if you could help me. I received this notice yesterday afternoon.W: Let me see. Yes, it's $10 for a lost book.M: But I didn't lose that book. I'm quite sure I have returned it.W: Let me check. Just a minute, please. Our records show that you checked it out on September17 and we have no record of its having been returned.M: I'm sure I've returned it. I remember that it was a rainy day and I had to carry it in a plastic bag.W: Well, our policy is that, when a book is lost, you must pay for it. We have to be fair about these things.M: I understand your position. Is there a way we can check to see if the book is here, just in case someone missed it?W: Well, I doubt that we would make any mistakes about this. But you can look on the shelf. M: Aha! Here it is!W: Let me see if it is the same copy you borrowed. I'll check the number on it with our records. M: I'm very sorry to bother you with this.W: It doesn't matter. Well, it is the same copy.M: Good!W: Sorry. We could have missed something. I am awfully sorry.M: Don't worry about that.10. All the housewives who went to the new supermarket had one great ambition: to be the lucky customer who did not have to pay for her shopping. For this was what the notice just inside said. It said: “Remember, once a w eek, one of our customers gets free goods. This May Be Your Lucky Day!”For several weeks Mrs. Edwards hoped, like many of her friends, to be the lucky customer. Unlike her friends, she never gave up hope. The cupboards in her kitchen were full of things which she did not need. It's no use her husband trying to stop her. She dreamed of the day when the manager of the supermarket would come to her and said: "Madam, this is your lucky day. Everything in your basket is free."One Friday morning, after she had finished her shopping and had taken it to her car, she found that she had forgotten to buy any tea. She ran back to the supermarket, got the tea and went to pay for it. As she did so, she saw the manager come up to her. "Madam," he said, holding out his hand, "I want to congratulate you! You are our lucky customer and everything you have in your basket is free."。

山东烟台2017年高考诊断性测试理科综合试题注意事项：1．本试卷分第I卷(选择题)和第II卷(非选择题)两部分。

答卷前，考生务必将自己的姓名、准考证号填写在答题卡上。

2．回答第I卷时，选出每小题答案后，用2B铅笔把答题卡上对应题目的答案标号框涂黑，如需改动，用橡皮擦干净后，再选涂其他答案标号框。

写在本试卷上无效。

3．回答第Ⅱ卷时，将答案写在答题卡上，写在本试卷上无效。

4．考试结束，将试题卷和答题卡一并交回。

可能用到的相对原子质量：H 1 B 11 C 12 O 16 Na 23 P 31 S 32 C1 35.5 Fe 56 Cu 64第I卷一、选择题：本题共13小题，每小题6分。

在每小题给出的四个选项中，只有一项是符合题目要求的。

1．下列有关细胞结构和功能的叙述。

正确的是A．叶肉细胞中叶绿体产生的[H]可进入线粒体参与生成水B．内质网、高尔基体、核糖体都能进行蛋白质的合成和加工C．溶酶体能合成多种水解酶并降解所吞噬的物质D．硝化细菌、酵母菌、颤藻的细胞中都含有核糖体、DNA和RNA2．下列关于细胞的物质输入与输出的叙述，正确的是A．小分子物质均是通过自由扩散或渗透方式出入细胞B．协助扩散、胞吐均是顺浓度梯度转运，不消耗ATPC．抑制细胞的呼吸对植物细胞发生质壁分离无明显影响D．小肠液中的大分子是细胞通过主动运输的方式分泌到小肠腔的3．丙肝病毒(HCV)的正链RNA(HCV—RNA，由a个核苷酸组成)能编码NS3等多种蛋白质，NS3参与解旋HCV—RNA分子，以协助RNA的复制。

一个正链RNA复制时，先合成出该RNA的互补链，再以互补链为模板合成该正链RNA。

下列相关叙述不正确的是A．一个正链RNA复制n次，消耗的核苷酸数为n×aB．翻译时，转运NS3起始端氨基酸的tRNA中含有反密码子C．HCV的遗传物质是正链RNA，分子内可能含有氢键D．HCV—RNA在复制和翻译过程中遵循的碱基配对方式不存在差异4．1914年，匈牙利科学家拜尔将燕麦胚芽鞘尖端放在去除胚芽鞘尖端的胚芽鞘一侧，结果胚芽鞘向对侧弯曲生长。

2017年山东省烟台市高三3月高考诊断性测试（一模）英语第I卷第二部分阅读理解（共两节，满分40分）第一节（共15小题；每小题2分，满分30分）阅读下面短文,从每题所给的A、B、C和D四个选项中，选出最佳选项。

AAfter a long winter, spring is the ideal time for sightseeing and exploring London’s green spaces.Explore London’s parks and gardensSpringtime is one of the perfect times of year to explore London’s parks and gardens, when the city’s Royal Parks will be blooming with flowers. Go and admire the rainbow of azaleas（杜鹃花）at Richmond Park or hire a deckchair in St James’s Park with a view of Buckingham Palace.Enjoy the entertainment at a Spring FestivalThere are a good many festivals and events held in London throughout spring. Make the most of the cultural exhibitions at the British Library Spring Festival. the Sundance Film Festival or the London Literature Festival；head to Shakespeare’s Globe, which hosts open-air Shakespeare performances from late April until early October.Get activeWarmer weather means there’s no excuse for staying indoors, so go for a walking or cycling tour of London. Alternatively, walk the Thames Walkway, which follows the river all the way from central London into the countryside；make the most of London’s“Boris Bikes”,which are available for hire all around the city and are free of charge for the first half hour. If you’re really looking for a challenge, sign up for the famous London Marathon, held annually in April.Take to the watersWhether cruising（航行）along the Thames River, hiring a rowing boat in Hyde Park or riding a canal boat around Little Venice, there are lots of fun ways to get on the water in London Held every year since 1829, the Oxford and Cambridge Boat Race allows teams from England’s most famous universities to compete against each other, and draws huge crowds of watching people.1. If you are interested in British culture, you are advised to________.A. visit Richmond ParkB. row a boat in Hyde ParkC. attend the London FestivalsD. walk the Thames Walkway解析：细节理解题。

山东省烟台市2017届高三数学3月诊断性测试（一模)试题理(扫描版)2017年高考诊断性测试 理科数学参考答案一、选择题C D A D B A A D C B 二、填空题11.160- 12.8 13. 9 14.2ππ+ 15。

①③三、解答题 16。

解：（1）)由tan 2tan A c bB b-=及正弦定理得, sin cos 2sin sin cos sin sin A B C BA B B-=, ………………………………2分整理得，sin cos 2sin cos sin cos A B C A B A =-， 即sin 2sin cos C C A =,因为sin 0C ≠， 所以1cos 2A =， …………………………………3分 而(0,)A π∈,所以3A π=， …………………………………4分函数()sin(2)(0)2f x x πϕϕ=+<<的图象向右平移3π个单位可得, 2sin(2)3y x πϕ=-+, 由题意2sin(2)cos(2)3x x πϕ-+=-，对任意 x ∈R 恒成立, 不妨令3x π=，有21sin cos()32πϕ=-= 又02πϕ<<，所以6πϕ=； ………………………………………6分(2）)因为3A π=,外接圆半径1R =，所以由正弦定理 2sin 3a R A == ………………………………………7分 又由余弦定理2222cos a b c bc A =+-， 所以 222232cos23b c bc b c bc bc bc bc π=+-=+-≥-=当且仅当b c =时取等号。

………………………………………10分 于是11333sin 322ABC S bc A ∆=≤⨯=∴△ABC 面积的最大值为334． ……………………12分 17. 解：（1）证明:取11A B 的中点O ，连接1,OA OC ,因为ABC ∆为等边三角形，O 为11A B 的中点， 所以111C O A B ⊥， …………………2分 在1A AO ∆中，112,1A A AO ==,1160AA B ∠=, 可得，1OA OA ⊥。