2019-2020学年河南省天一大联考高二上学期阶段性测试(二)英语 (Word版)
绝密★启用前
天一大联考
2019－2020学年高二年级阶段性测试(二)
英语
考生注意：
1.答题前，考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。
2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。
3.考试结束后，将本试卷和答题卡一并交回。
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2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。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.￡19.15.
B.￡9.18.
C.￡9.15.
答案是C。
1. What are the speakers talking about?
A. A sweater.
B. A skirt.
C. A bag.
2. Where are the speakers probably?
A. In a supermarket.
B. In a library.
C. In a cafe.
3. What kind of animal does Simon like?
A. Cats.
B. Dogs.
C. Rabbits.
4. What will the woman do for the man tomorrow?
A. Treat him to lunch. R. Tutor him in his studies. C. Write him a thank-you note.
5. How much will the man pay finally?
A. ￥50.
B. ￥65.
C. ￥150.
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。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，各小题给出5秒钟的作答时间。每段对话或独白读两遍。
听第6段材料，回答第6、7题。
6. What kind of car dots the woman have ?
A. An old one.
B. A broken one.
C. A brand new one.
7. What does the man want to do?
A. Take a job overseas.
B. Go into the car business.
C. Help sell his cousin's car.
听第7段材料，回答第8、9题。
8. What is the man expecting?
A. An outdoor activity.
B. A phone call.
C. An important person.
9. What's the probable relationship between the speakers?
A. Husband and wife.
B. Colleagues.
C. Neighbors.
听第8段材料，回答第10至12题。
10. How many times has the man been late for work this week?
A. Once.
B. Twice.
C. Three times.
11. What did the man do a few minutes ago?
A. He read a newspaper.
B. He took a shower.
C. He had his breakfast.
12. Where are the man's glasses most probably?
A. In the bathroom.
B. In the dining room.
C. In the living room.
听第9段材料，回答第13至16题。
13. Why did the man have a car accident?
A. He was driving too fast.
B. He didn’t keep his eyes on the road.
C. He was answering the phone.
14. When did the man go to the hospital?
A. On Christmas Eve.
B. On Christmas Day.
C. On December 26th.
15. What did the man do in March?
A. He took part in the marathon.
B. He stayed in hospital.
C. He went to Tokyo for sightseeing.
16. How does the woman sound in the end?
A. Annoyed.
B. Worried.
C. Surprised.
听第10段材料，回答第17至20题。
17. How many students are there in the school?
A. 1.
B. 2.
C. 12.
18. What does Wang Hao insist doing?
A. Going to school on time.
B. Ringing the school bells.
C. Taking 6 classes a day.
19. What does the class teacher encourage Wang Hao to do?
A. Help his father with work.
B. Treat his lessons seriously.
C. Play with other children.
20. What was the school like before 2010?
A. There were less than 200 students.
B. There were more teachers than now.
C. Teachers gradually went to schools in towns.
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)
阅读下列短文，从每题所给的A、B、C和D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
A
Meals on Wheels
Want to help us serve more of our elderly neighbors?
Want to deliver meals and a smile?
Meals on Wheels provides meals for the elderly and the disabled in Richland County, South Carolina. Meals are delivered at lunch time five days a week by volunteers.
But Meals on Wheels delivers more than just a meal. The daily visit from a volunteer also
provides a warm smile and a safety check that helps keep seniors healthy and safe.
Meals on Wheels' clients(客户)are the elderly and disabled adults in our community(社区)who cannot have an enough, healthy diet, either because of transportation or financial difficulties. Nearly three-fourths of them are at or below the national poverty level.
What is the cost of Meals on Wheels?
No one is denied a meal based on income. Some clients may receive meals at no cost, while others are asked to pay according to their incomes.
What’s on the menu?
Our menus are carefully planned to meet one-third of the daily nutritional(营养)needs of senior citizens. All meals are served with fat-free milk and whole grain bread unless otherwise noted.
How can I help?
Through the support of our funding partners, staff and volunteers, we were able to serve 169,381 hot and frozen meals to 1,015 clients in 2018. The meals were delivered by volunteers driving nearly 55, 000 miles. Although we have made great efforts, we still have a waiting list of eligible(有资格的)people we can't serve due to lack of workers. So please join us!
Contact us
For more information, please contact Anne Shissias, Director of In-Home & Community Based Services, at 803-252-7734 x234 or ashissias https://www.wendangku.net/doc/c51632475.html,.
21. What is the author's purpose in writing the text?
A. To raise more money.
B. To appeal to volunteers.
C. To attract more clients.
D. To introduce frozen meals.
22. Who is a most probably eligible client of Meals on Wheels?
A. A teenage with little money.
B. A person working in the shelter.
C. A wealthy lady with no children.
D. An old man with one leg.
23. What can we know about Meals on Wheels?
A. Its funding partners control meal delivering.
B. It is always short of eligible workers.
C. It only provides meals for poor people.
D. Its menus can change accordingly.
B
Anna Sproul-Latimer, a librarian from Arlington, Virginia, didn't realize that she had lost her laptop on the trip from New York City to Washington D. C. until she walked out of the railway
station. She remembered clearly she had got on the train with her laptop.
She used the Find My iPhone app and located her laptop in Woodbridge, Virginia. She realized her laptop was likely stolen. She left messages on her computer through Find My iPhone-at first polite messages requesting help and then later messages of anger demanding its return. But she received no reply. Before anyone could take it off the grid(断网), she memorized its last listed location – a neighborhood in Woodbridge.
At first, she tried calling the police in her area, but there wasn't much that could be done since the laptop went missing in a state outside of the police's jurisdiction(管辖权).
She went to Google Earth and mapped the last location. Online, she found contact information for a couple who lived in the neighborhood. She took a chance and emailed them informing them of her hunt for her missing laptop. Then, she waited. She never heard back.
The couple did receive her entails, but instead of answering, they asked their neighbor-the founder of a computer repair and buy-hack company, DotSight Solutions-to hell, them.
The neighbor, Imran Moorad, had just returned from the Apple Store repairing a used computer he had purchased. When he heard about Sproul-Latimer's story, he examined the purchased computers carefully. He found that one of the serial numbers of the computers he'd bought matched Sproul-Latimer’s.
Moorad and Sproul-Latimer met up soon after at a Starbucks in Alexandria. Though Moorad had spent $600 on the laptop purchase, he gave it back to her, no charge. To Moorad, even though he lost $600, Sproul-Latimer’s happiness and appreciation made it all worth it.
24. Where did Anna Sproul-Latimer lose her laptop probably?
A. In a library.
B. On a train.
C. In the Apple Store.
D. In Woodbridge.
25. Why (lid Anna Sproul-Latimer leave messages on her computer through Find My iPhone?
A. To track the thief.
B. To locate her laptop.
C. To get back her laptop.
D. To determine the thief's identity.
26. What did the couple do after they received the emails?
A. They turned to Imran Moorad for help.
B. They ignored Sproul-Latimer’s demand.
C. They replied to Sproul-Latimer at once.
D. They went to the police station right away.
27. We can say that Imran Moorad found the lost laptop .
A. with ease
B. by chance
C. at a Starbucks
D. with the help of the police
C
Celebrated annually on the second Monday in October, Columbus Day honors Italian explorer Christopher Columbus's discovery of America in 1492. However, the official holiday has constantly been argued due to the European settlers’ brutal treatment of the Native American people. It has also been argued that America had already been "discovered" by the indigenous(土著的)people when Columbus arrived.
Therefore, some states like Oregon, Iowa, and Nebraska have never observed it. South Dakota renamed it "(这个位置看不清) Americon Day" in 1990, while Hawaii has called the holiday "Discoverers’ Day" since 1988. As public knowledge has increased, many schools and universities across the country have also stopped marking the event.
Even so, many people were still upset that Columbus Day remained an official holiday. An international conference in 1977 put forward renaming Columbus Day to "Indigenous Peoples’Day"· They believed renaming the holiday would help honor the victims of American colonization.
Though the propose(提议) passed, it was in 1992 that the first city-Berkeley, CA-renamed Columbus Day to Indigenous Peoples' Day. The coastal city of Santa Cruz, CA, followed shortly after, in 1994. The movement lost steam again until 2014, when Minneapolis, MN, Grand Rapids, MN, and Seattle, W A, decided to make the change. Since then, over 70 cities and states have switched to the new name. In 2019, three more states-New Mexico, Vermont, and Maine-voted in favor of the name change as well.
The movement has also gained ground in Latin America. Argentina, Colombia, Chile, Costa Rica, Ecuador, Hondurus, Mexico, and Uruguay have all renamed Columbus Day to "Dia de la Raza" or "Day of the Race". It celebrates Latin America's mixed indigenous and European culture.
As would be expected, not everyone believes a name change is necessary. Italian Americans, who have made Columbus Day the most important feature of Italian Heritage Month, celebrated throughout October, argue the holiday honors the history of immigration(移民), not the explorer. They, therefore, believe the name should be kept.
28. What do you learn about Columbus Day?
A. It was observed by all American states.
B. It has long caused public argument.
C. It became the official holiday in 1492.
D. It honors Columbus’s discovery o f the U.S. A.
29. What does the underlined word "brutal" mean in the first paragraph?
A. peaceful
B. fair
C. cruel
D. special
30. Which of the following is the last to adopt the new name "Indigenous Peoples’ Day"?
A. Santa Cruz, CA.
B. Grand Rapids, MN.
C. Seattle, WA.
D. Vermont.
31. What is Italian Americans’ att itude toward the holiday’s name change?
A. Negative.
B. Unclear.
C. Supportive.
D. Indifferent.
D
Nowadays, college applications put a lot of emphasis on community service hours. Most high schools also have graduation requirements. More and more people are volunteering their time. However, I have begun to think that this may not be the best way to approach community service.
Some of my classmates tell me that they are highly involved in a voluntary organization for college applications. I ask them to explain in detail, and they reply with "Oh, I have X number of hours." With further questioning I have discovered that these volunteers don't even know the responsibility of the organization! This deeply bothered me. At what point did community service enter the category of "Required" and “Step to getting into a good college" rather than the categories of "Doing Good Things" and “How to Give Back"?
Community service should not be just about getting into college, or about gathering points for your resume(简历). It should be about helping the greater community, and learning what it means to be a generous citizen of our world. As to choosing the organization, don't think about how you will benefit from it, but how your actions will help others.
The main way to solve this issue would be to update the college and high-school requirements. Instead of just asking "how many hours have you volunteered", ask "how have your actions helped others". Look for personal commitment rather than concrete hours of community service.
Next time you are volunteering, try to forget the fact that your hours are important, because really, they are not. Choose organizations that you are enthusiastic about. Don't volunteer because you have to. Volunteer because it is the right thing to do as a human being. Next time you hear a friend commenting on how many hours they have, remind them that it isn't the numbers that change the world.
32. According to the passage, community service is required when people want to .
A. enter a good college
B. update their resumes
C. receive medical care
D. get a scholarship
33. What can we infer about the author?
A. He or she was turned down by a university.
B. He or she refused to do community service.
C. He or she is probably a high-school student.
D. He or she attended a voluntary organization.
34. In the author' s opinion，the present college and high-school requirements should be .
A. avoided
B. improved
C. accomplished
D. supported
35. Which of the following is the best title for the passage?
A. College Applications Shouldn't Include Community Service .
B. Students Are Highly Involved in V oluntary Organizations
C. Community Service Hours Are Key to Entering Good Colleges
D. Community Service Is More Than School Requirements
第二节(共5小题；每小题2分，满分10分)
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。
Meetings are necessary for a company. 36 But with the help of technology, more and more companies are using video conferencing(视频会议)as a meeting or communication tool. The following are some benefits of video conferencing for a company.
1. Reduce travel costs.
The immediate benefit of video conferencing is on the travel costs for any company involved. Whether it's a meeting between different unit heads from different places or a communication means with customers or business partners that are spread across different cities or countries, video conferencing eliminates(消除)the need for travel. Although personal contact is still important in much of the business world, some meetings that are considered routine(例会)may be done through communication via video. 37
2. Hire potential employees faster.
Video conferencing also helps the company to hire the right people for a specific position at a much faster speed. Hiring managers, for example, need not travel or, to distant places just to discuss
basic personal information with a potential employee. 38
3. Increase efficiency(效率)for teams.
Teams or units that are located in different areas may also get benefit from regular video conferencing. 39 It is also a great way to keep in touch with other team members in time.
4. 40
Regular video conferencing also improves relationships among different groups of people. Fur employees in the same organization, different office locations would not be a barrier in developing close relationships with teammates and bosses. Relationships with customers may also be strengthened with video calls if face-to-face contact is not possible.
A. Create a friendly atmosphere.
B. Most meetings are held regularly.
C. Improve interpersonal relationships.
D. Meetings are often done face to face.
E. And this will result in less travel expense.
F. If video interviews can be done, the hiring process will take less time.
G. Being able to discuss with teammates in real time through video meetings improves efficiency in a team.
第三部分语言知识运用(共两节，满分45分)
第一节(共20小题；每小题1.5分，满分30分)
阅读下而短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
Having worked for other people for 40 years, I stopped doing my job. As a(n) 41 in packaging(包装业), I had a good network and a good 42 . I was also healthy and 43 . Retirement(退休)was simply not a choice for me: I wanted to become a boss myself, 44 my own business. Gradually, an idea 45 to take root, born from my 46 for our environment. I 47 to build my own business, producing biodegradable(生物降解的)packaging from wastepaper, or agricultural waste replacing the 48 , single-use plastic packaging to which we've all become 49 . This is called clean technology, and it felt really 50 to me and the environment. And
51 at the age of 66, I became a businessman for the very first time.
I had lots of things to deal with: designing and making new 52 , hiring workers, finding
partners and raising money-these are all 53 , things for a new business, but they were new to me. I had to 54 with young people from the high-tech industry to look for funding, and it could be very 5 . After all, I have shoes older than most of these people. But I hanged on.
Five years later, I'm 56 to tell you that our revenues(收益)have doubled every year. We’ve won more than 20 57 for the work that we’ve done. But best of all, we’ve made a small difference in the worldwide right 58 plastic pollution. I feel I am doing the most rewarding work of my life right now.
It is said that the rate(比率)of 59 for older businessmen starting new businesses is 70 percent and that number falls to 28 percent for younger ones. Ages don't 60 when it comes to starting a business. It's never too late to reinvent yourself.
41. A. artist B. engineer C. physician D. actor
42. A. emotion B. attention C. intention D. reputation
43. A. energetic B. cheerful C. generous D. natural
44. A. giving up B. setting up C. using up D. making up
45. A. started B. happened C. pretended D. hesitated
46. A. advice B. talent C. concern D. appreciation
47. A. regretted B. refused C. failed D. decided
48. A. cheap B. tough C. harmful D. stead
49. A. related B. devoted C. similar D. addicted
50. A. meaningful B. powerful C. peaceful D. colorful
51. A. however B. therefore C. instead D. anyway
52. A. pictures B. products C. assignments D. projects
53. A. extra B. rare C. typical D. hard
54. A. argue B. chat C. agree D. compete
55. A. discouraging B. promising C. touching D. amazing
56. A. anxious B. angry C. sorry D. proud
57. A. awards B. battles C. victories D. competitions
58. A. for B. beyond C. against D. within
59. A. market B. success C. employment D. interest
60. A. matter B. change C. stand D. mind
第二节(共10小题；每小题1.5分，满分15分)
阅读下而短文，在空白处填入1个适当的单词或括号内单词的正确形式，并将答案填写在答题卡上。
New research shows that people who walk more slowly at the age of 45 may be more likely to age faster. Scientists said that slower walkers who are in their 61 (forty) could get older more quickly than faster walkers. This ageing could be both physically and mentally. The scientists said walking speed could help doctors understand more about the age-related health problems that people have. Many years ago, doctors 62 (begin)to know that older people who walked slowly were more likely to have health problems. They wanted to find out 63 this was the same for younger people. Terrie Moffitt said, "Doctors know that slow walkers in their 70s and 80s tend 64 (die) sooner than fast walkers of the same age."
A study 65 (CUM) out last month and the test data of 904 people was analyzed. The people in the tests had medical records of physical 66 (examine) throughout their lives. For, participants, these records went back 67 the time when they were three years old. The researchers used data on the intelligence of the participants. The, looked at how 68 (accurate) people could calculate things and how good 69 was for them to remember things. They also did tests on the participants at different walking speeds. The scientists asked the participants to say the alphabet while they walked at a normal speed and fast speed. The participants’brains were examined and the scientists found that people who walked more slowly showed less brain activity while 70 (say) the alphabet.
第四部分写作(共两节，满分35分)
第一节短文改错(共10小题；每小题1分，满分10分)
假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。
删除：把多余的词用斜线(\)划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：
1.每处错误及其修改均仅限一词；
2.只允许修改10处多者(从第11处起)不计分。
During the winter vacation last year, I worked as the volunteer at a nursing home near my home.
I went there once a week. In the nursing home, I clean the rooms for the old people in the morning. I also chatted with them. Beside, I read newspapers for them, which helped them learn about what was going on al home and in abroad. Most of them were very weak, so I led them take exercise. And we played interested games together. The old people were satisfied with my works. My volunteer experience has shown that I can bring joyful to old people, what has made me a more caring person. In a word, working as volunteers are extremely rewarding!
第二节书面表达(满分25 分)
假定你是李华，校园文化节来临之际，请你代表学校学生会给你校英国外教James写一封email，邀请他在2月8日向全校学生作一个有关英国传统节日的报告。内容包括：
1.报告内容；
2.议程安排；
3.表达期待。
注意：
1.词数100左右；
2.可以适当增加细节，以使行文连贯。
Dear Mr James,
Yours,
Li Hua
河南省天一大联考2019-2020学年高二下学期线上联考试题(理)
河南省天一大联考2019-2020学年 高二下学期线上联考试题（理） 考生注意： 1.答题前，考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。 2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。 3.考试结束后，将本试卷和答题卡一并交回。 一、选择题：本题共12小题，每小题5分，共60分。在每小题给出的四个选项中，只有一项是符合题目要求的。 1. 21i i -+＝ A.－2＋2i B.－1＋i C.－1－i D.2＋2i 2. =? A. 2 π B.π C.2π D.4π 3.利用数学归纳法证明f(n)＝1＋2＋3＋…＋(3n ＋1)(n ∈N * )时，第一步应证明 A.f(2)＝1＋2 B.f(1)＝1 C.f(1)＝1＋2＋3 D.f(1)＝1＋2＋3＋4 4.已知数列{a n }是等差数列，且a 6＝6，a 10＝8，则公差d ＝ A. 12 B.2 3 C.1 D.2 5.已知函数f(x)＝ax 2 ＋b 的图像开口向下，()() lim 4x f a x f a x ?→+?-=?，则a ＝ B. C.2 D.－2 6.《九章算术》是我国古代的数学名著，书中把三角形的田称为“圭田”，把直角梯形的田称为“邪田”，称底是“广”，高是“正从”，“步”是丈量土地的单位。现有一邪田，广分别为八步和十二步，正从为八步，其内部有块广为八步，正从为五步的圭田，若将100棵的果树均匀地种植
在邪田，一年后，每棵果树都有60kg 的果子收成，则此圭田中的收成约为 A.25kg B.50kg C.1500kg D.2000kg 7.根据右侧的程序框图，输出的S 的值为 A.1007 B.1009 C.0 D.－1 8.在复平面内，虚数z 对应的点为A ，其共轭复数z 对应的点为B ，若点A 与B 分别在y 2 ＝4x 与 y ＝－x 上，且都不与原点O 重合，则OA OB ?u u u r u u u r ＝ A.－16 B.0 C.16 D.32 9.在古希腊，毕达哥拉斯学派把1，3，6，10，15，21，28，36，45，这些数叫做三角形数。设第n 个三角形数为a n ，则下面结论错误的是 A.a n －a n －1＝n(n>1) B.a 20＝210 C.1024是三角形数 D. 123111121 n n a a a a n +++???+=+ 10.已知图中的三条曲线所对应的函数分别为y 1＝1x (x>0)，y 2＝x ，y 3＝1 4 x ，则阴影部分的面积为 A.1＋ln2 B.ln2 C.1 D.2 11.在△ABC 中，∠B ＝60°，AD 是∠BAC 的平分线，交BC 于D ，BD ，cos ∠BAC ＝ 1 4 ，则
2018-2019学年河南省天一大联考高二下学期阶段性测试(三)(4月)英语试题
河南省天一大联考2018-2019学年高二年级阶段性测试（三）英语最新试卷多少汗水曾洒下，多少期待曾播种，终是在高考交卷的一刹尘埃落地，多少记忆梦中惦记，多少青春付与流水，人生，总有一次这样的成败，才算长大。 第Ⅰ卷 第一部分阅读理解（共两节，满分40分） 第一节（共15小题；每小题2分，满分30分） 阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。 A Now it is time to go out to explore foreign lands and experience the different beaches that the world has to offer. Anse Sourced’ Argent, Seychelles--With beautiful pale pink sand, clear blue waters, and rock formations that have been shaped by waves and time, this beach’s beauty is enough to land itself on the cover of a travel magazine. And it is one of the most photographed baeches in the world. And don’t worry about any waves as the shores and shallow waters are protected by a nearby reef(礁). Maldives--Maldives is an island nation off the coast of Sri Lanka and one of the lowest nations of the world, Enjoy the soft sandy beaches, coconut-bearing palm trees, and a diverse sea life that surrounds you. But due to coral dying and rising sea levels, Maldives is expected to sink within the next 10 years. Freedom Beach, Thailand--Privacy(隐私) isn’t always so easy to find at a beach, but Freedom Beach in Thailand provides a much less crowded, more relaxing location to spend your time. With swimming, snorkeling(浮潜), and beach-side refreshments(点心,茶点), you are able to have the vacation that you deserve! Its neighboring beach, Patong, can get a little crowded and a bit crazy with the large number of tourists present, so escape via water taxi to enjoy yourself and a much cleaner shore. Matira Beach, Bara Bora--The island's economy is driven by tourism, so you know that all of the locals want you to have a great time and come back soon with all
河南省天一大联考2018-2019学年高二上学期阶段性测试(一)(11月)生物 Word版含解析
天一大联考_ 2018-2019学年高二年级阶段性测试(一） 生物 本试题卷分第I卷(选择题）和第Ⅱ卷(非选择题)两部分。考生作答时，将答案答在答题卡上(答题注意事项见答题卡），在本试题卷上答题无效。考试结束后，将本试题卷和答题卡一并交回。 第I卷 一、选择题:本大题共20小题，每小题2分，共40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.人体细胞外液三种组成成分之间的关系如下图所示，下列相关说法正确的是 A.毛细血管壁细胞直接生活环境是① B.长期营养不良时①的渗透压升高 C. ①中含有较多的蛋白质，②③中的蛋白质含量较少 D.受伤后长出的水泡中的液体主要是② 2.下列有关人体的内环境与稳态说法中，错误的是 A.血浆中的缓冲物质会保持血浆的PH稳定不变化 B.大量出汗，Na+大量流失，可能会对细胞外液渗透压产生影响 C.神经一体液—免疫调节网络是机体维持稳态的主要调节机制 D.人体内环境稳态遭到破坏可能与外界环境的变化有关 3.下列与人体内环境有关的说法中，错误的是 A.内环境中Na+浓度下降，神经细胞的兴奋性会升高 B.内环境稳态是机体进行正常生命活动的必要条件 C.血浆渗透压下降可能会引起组织水肿
D.血浆渗透压的大小主要与无机盐和蛋白质的含量有关 4.如图是兴奋在神经纤维上产生和传导的示意图。下列相关说法错误的是 A.A处电位的形成主要与K+的跨膜运输有关 B.图中显示了兴奋在神经纤维上是双向传导的 C.兴奋传导的方向与膜内电流的方向一致 D. A处的膜电修金很快由“外负内正”转变为“外正内负” 5.下列与突触和神经递质有关的说法中，错误的是 A.有些激素(如肾上腺素）可以作为神经递质 B.突触只能在两个神经元之间形成 C.突触后膜上有与神经递质结合的特异性受体 D.兴奋通肆突触传递需要组织液的参与 6.下列与神经调节有关的说法中，错误的是 A.在反射弧上有电信号→化学信号→电信号的转换 B.脑中的高级中枢可以调控脊髓中相应的低级中枢 C.效应器产生的反应不一定属于反射活动 D.脑干中有维持身体平衡的中枢，体温调节中枢位于下丘脑 7.下列关于人体生命活动调节的说法中，正确的是 A.在炎热环境中，机体的散热量增加，产热量减少，散热量大于产热量 B.大脑皮层言语区的S区受损伤，病人不能看懂文字 C.长期服用性激素类似物可能导致性器官萎缩或功能异常 D.医院可通过尿液检测人体内胰岛素的含量 8.下列与人体血糖平衡调节有关的说法中，正确的是 A.骨骼肌细胞和神经细胞都是胰岛素作用的靶细胞
河南天一大联考高二阶段性测试(一) 英语含答案
天一大联考 2020－2021学年高二年级阶段性测试(一) 英语 考生注意： 1.答题前考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。 2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。 3.考试结束后，将本试卷和答题卡一并交回。 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.￡19.15. B.￡9.18. C.￡9.15. 答案是C。 1. What does the woman want the boy to do? A. Read a story. B. Go to bed. C. Take a bath. 2. When will the speakers hold a party? A. On Friday night. B. On Saturday night. C. On Sunday night. 3. What did the woman do today? A. She kept at home. B. She stayed with some kids. C. She went to the bookstore. 4. What are the speakers talking about? A. A fire. B. An earthquake. C. A car accident. 5. What will the woman do tonight? A. Buy a calendar. B. Have a meeting. C. Attend a party.
2017-2018学年河南省天一大联考高二上学期阶段性测试二数学(理)试题
河南省天一大联考2017-2018学年高二年级阶段性测试二 理科数学 第Ⅰ卷（共60分） 一、选择题：本大题共12个小题,每小题5分,共60分.在每小题给出的四个选项中，只有一项是符合题目要求的. 1.抛物线28x y =的焦点坐标为（ ） A ．??? ??3210， B ．??? ??- 3210， C ．()02， D ．()02，- 2.下列叙述正确的是（ ） A ．若0≠x ，则21≥+ x x B ．方程()0,0122>>=+n m ny mx 表示的曲线是椭圆 C ．”“ac b =2是“数列c b a ,,为等比数列”的充要条件 D ．若命题01:0200<+-∈?x x R x p ，，则01:2≥+-∈??x x R x p ， 3.设R c b a ∈,,，则b a >的充要条件是（ ） A ．bc ac < B ．22b a > C ．55b a > D ． b a 11> 4.已知数列{}n a 是公比为21的等比数列，其前n 项和为n s ，则=4 4a s （ ） A ．15 B ．8 C. 815 D ．158 5.设变量y x ,满足约束条件?? ???≤-≥-≥+224x y x y x ，则目标函数x y z 2-=的最大值为（ ） A ．2 B ．1 C.0 D ．3 6.椭圆的长轴长、短轴长和焦距按照适当的顺序排列，可构成一个等差数列，则该椭圆的离心率（ ） A ．54 B ．53 C. 54或53 D ．52或5 3 7.三棱柱111C B A ABC -中，⊥1AA 平面ABC ， 60=∠BCA ，1CC CA BC ==，点N M ,分别是1111,C A B A 的中点，则BM 与AN 所成角的余弦值为（ ）
河南省天一大联考2020-2021学年高二阶段性测试(一)+数学(理)含答案
2020－2021学年高二年级阶段性测试(一) 数学(理科) 考生注意： 1.答题前考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。 2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。 3.考试结束后，将本试卷和答题卡一并交回。 一、选择题：本题共12小题，每小题5分，共60分。在每小题给出的四个选项中，只有一项是符合题目要求的。 1.在△ABC 中，BC ＝10，sinA ＝ 3 1 ，则△ABC 的外接圆半径为 A.30 3 C.20 D.15 2.已知数列{a n }满足a 1＝1，a n ＋1＝a n ＋6，则a 5＝ A.25 B.30 C.32 D.64 3.已知在△ABC 中，角A ，B ，C 的对边分别为a ，b ，c ，且a 2＝b 2＋c 2－10 13 bc ，则cosA ＝ A. 726 B.513 C.1726 D.1213 4.已知在△ABC 中，角A ，B ，C 的对边分别为a ，b ，c ，2a －20sinA ＝0，sinC ＝1 10 ，则c ＝ 2 B. 22 C.25 D.210 5.已知等差数列{a n }的前n 项和为S n ，且a 3＋a 8＝m ，S 10＝pm ，则p ＝ A.3 B.5 C.6 D.10 6.音乐与数学有着密切的联系，我国春秋时期有个著名的“三分损益法”：以“宫”为基本音“宫”经过一次“损”，频率变为原来的3 2 ，得到“徵”，“徵”经过一次“益”，频率变为原来的 3 4 ，得到“商”……依此规律损益交替变化，获得了“宫”“徵”“商”“羽”“角”五个音阶。据此可推得
河南省天一大联考2019-2020学年高二上学期阶段性测试试题(二)
一、选择题：本题共10小题，每小题5分，共50分。在每小题给出的四个选项中，第1～6题只有一个选项符合题目要求，第7～10题有多个选项符合要求。全部选对的得5分，选对但不全的得3分，有选错的得0分。 1.下列说法中正确的是 A.元电荷是自然界中带电量最小的带电体，电子、质子都是元电荷 B.电场线是为了形象地描绘电场而引入的假想曲线，其疏密程度反映了电场的强弱，电场线上各点的切线方向则为该点电场的方向 C.由F＝BIL可知，通电导线在磁场中一定会受到安培力的作用 D.法拉第发现了电磁感应现象，感应电流的方向遵循右手螺旋定则 2.如图所示，P、A、B、C是真空中一正四面体的四个顶点，D是BC边的中点，O是△ABC 的中心。现在P点固定一正点电荷，下列说法中正确的是 、B、C三点的电场强度相同 B.底面ABC为等势面 C.将一正试探电荷从B点沿直线BC移到C点，静电力对该试探电荷先做负功后做正功 、A、B、C、D点电势的高低φA＝φB＝φC>φD>φO 3.如图所示，空间存在一匀强磁场，现沿y轴方向放置一长为L的直导线，当导线中通以电流I时，受到沿z轴正方向、大小为F的安培力。则下列关于匀强磁场的判断中正确的是
A.一定沿x轴负方向，大小一定为F IL B.一定沿x轴正方向，大小一定为 F IL C.一定与z轴垂直，且不大于F IL D.一定与z轴垂直，且不小于 F IL 4.如图所示是研究电磁感应现象的实验装置，关于实验现象，下列说法中正确的是 A.当开关闭合或断开的瞬间，电流表的指针将发生偏转，且偏转方向相同 B.在开关断开的状态下，快速改变滑动变阻器滑片的位置，则电流表的指针将发生偏转 C.在开关闭合的状态下，迅速改变线圈A相对线圈B的位置，则电流表的指针将发生偏转 D.在开关闭合的状态下，一起晃动线圈A、B时(线圈A、B保持相对静止)，电流表的指针将会发生偏转 5.光伏发电技术的研究已有100多年的历史，硅光电池现已得到广泛地应用。某同学通过实验探究一硅光电池的U－I特性图线，所得实验结果如图所示，a、b是在不同光照强度下得到的两条图线，其中图线a对应的光照强度大。则由图可知
2019～2020学年河南省天一大联考高二上学期阶段性测试(二)数学(理)试题及答案解析
绝密★启用前 河南省·天一大联考 2019～2020学年高二年级上学期阶段性测试(二) 数学(理)试题 考生注意： 1.答题前，考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。 2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。 3.考试结束后，将本试卷和答题卡一并交回。 一、选择题：本题共12小题,每小题5分,共60分。在每小题给出的四个选项中,只有－项是符合题目要求的。 1.已知集合A＝{x|x2－5x＋6≥0},B＝{x|－1≤x<3},则A∩B＝ A.[－1,2] B.[－1,3] C.[2,3] D.[－1,＋∞) 2.如果b
2019-2020学年河南省天一大联考高二上学期阶段性测试(二)英语 (Word版)
绝密★启用前 天一大联考 2019－2020学年高二年级阶段性测试(二) 英语 考生注意： 1.答题前，考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。 2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。 3.考试结束后，将本试卷和答题卡一并交回。 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2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。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.￡19.15. B.￡9.18. C.￡9.15. 答案是C。 1. What are the speakers talking about? A. A sweater. B. A skirt. C. A bag. 2. Where are the speakers probably? A. In a supermarket. B. In a library. C. In a cafe. 3. What kind of animal does Simon like? A. Cats. B. Dogs. C. Rabbits. 4. What will the woman do for the man tomorrow? A. Treat him to lunch. R. Tutor him in his studies. C. Write him a thank-you note. 5. How much will the man pay finally?
河南省天一大联考2017-2018学年高二下学期阶段性测试(三)(4月)数学(理)试题(解析版)
天一大联考 2017—2018学年高二年级阶段性测试(三) 数学(理科) 第Ⅰ卷（共60分） 一、选择题：本大题共12个小题,每小题5分,共60分.在每小题给出的四个选项中，只有一项是符合题目要求的. 1. 若的实部与虚部相等，则实数（） A. -2 B. C. 2 D. 3 【答案】B 【解析】分析：首先将所给的复数利用四则运算法则进行计算，然后结合实部虚部的表达形式得到关于实数a的方程，解方程即可求得实数a的值. 详解：由题意可得：， 该复数的实部与虚部相等，则：， 求解关于实数a的方程可得：. 本题选择B选项. 点睛：复数中，求解参数(或范围)，在数量关系上表现为约束参数的方程(或不等式).由于复数无大小之分，所以问题中的参数必为实数，因此，确定参数范围的基本思想是复数问题实数化. 2. 对于小于41的自然数，积等于（） A. B. C. D. 【答案】A 【解析】分析：利用排列数、组合数公式逐项写出所给算式的表达形式，结合题意选择符合题意的选项即可. 详解：由排列数公式可知：， ，
； 本题选择A选项. 点睛：排列数、组合数公式是高中的基础公式，熟练掌握：(1)排列数公式；(2)组合数公式 ，这是正确计算的关键． 3. 若(为虚数单位)，则使的值可能是（） A. 0 B. C. D. 【答案】B 【解析】分析：首先计算的结果，结合所得的结果分别令实部、虚部相等，得到关于的三角方程，求解三角方程即可求得的值. 详解：由题意可得： ， 结合可得：，对比选项可知：. 本题选择B选项. 点睛：复数的基本概念和复数相等的充要条件是复数内容的基础，高考中常常与复数的运算相结合进行考查，一般属于简单题范畴. 4. 若函数有极大值点和极小值点，则导函数的大致图象可能为（） A. B. C. D. 【答案】C 【解析】分析：首先确定所给函数的导函数为是，然后结合函数的极值确定函数的单调性，由函数的单调
2019-2020学年河南省天一大联考高二上学期阶段性测试物理试题
天一大联考2019－2020学年高二年级阶段性物理测试一、选择题：本题共10小题，每小题5分，共50分。在每小题给出的四个选项中，第1～6题只有一个选项符合题目要求，第7～10题有多个选项符合要求。全部选对的得5分，选对但不全的得3分，有选错的得0分。 1.下列说法中正确的是 A.元电荷是自然界中带电量最小的带电体，电子、质子都是元电荷 B.电场线是为了形象地描绘电场而引入的假想曲线，其疏密程度反映了电场的强弱，电场线上各点的切线方向则为该点电场的方向 C.由F＝BIL可知，通电导线在磁场中一定会受到安培力的作用 D.法拉第发现了电磁感应现象，感应电流的方向遵循右手螺旋定则 2.如图所示，P、A、B、C是真空中一正四面体的四个顶点，D是BC边的中点，O是△ABC 的中心。现在P点固定一正点电荷，下列说法中正确的是 A.A、B、C三点的电场强度相同 B.底面ABC为等势面 C.将一正试探电荷从B点沿直线BC移到C点，静电力对该试探电荷先做负功后做正功 D.O、A、B、C、D点电势的高低φA＝φB＝φC>φD>φO 3.如图所示，空间存在一匀强磁场，现沿y轴方向放置一长为L的直导线，当导线中通以电流I时，受到沿z轴正方向、大小为F的安培力。则下列关于匀强磁场的判断中正确的是 A.一定沿x轴负方向，大小一定为F IL B.一定沿x轴正方向，大小一定为 F IL
C.一定与z轴垂直，且不大于F IL D.一定与z轴垂直，且不小于 F IL 4.如图所示是研究电磁感应现象的实验装置，关于实验现象，下列说法中正确的是 A.当开关闭合或断开的瞬间，电流表的指针将发生偏转，且偏转方向相同 B.在开关断开的状态下，快速改变滑动变阻器滑片的位置，则电流表的指针将发生偏转 C.在开关闭合的状态下，迅速改变线圈A相对线圈B的位置，则电流表的指针将发生偏转 D.在开关闭合的状态下，一起晃动线圈A、B时(线圈A、B保持相对静止)，电流表的指针将会发生偏转 5.光伏发电技术的研究已有100多年的历史，硅光电池现已得到广泛地应用。某同学通过实验探究一硅光电池的U－I特性图线，所得实验结果如图所示，a、b是在不同光照强度下得到的两条图线，其中图线a对应的光照强度大。则由图可知 A.该硅光电池的电动势受光照强度影响很大 B.该硅光电池的内阻仅受光照强度的影响 C.在外电路为定值电阻的情况下，光照强度大，则电池的输出功率大 D.在外电路为定值电阻的情况下，光照强度大，则电池的效率低 6.如图所示，空间存在一单边有界的匀强磁场，磁场方向垂直纸面向里。在磁场边界S点处有一电子源，可以沿纸面向磁场内发射速率相同的电子，已知电子的入射方向与磁场边界的最小夹角为45°，不计电子的重力和电子间的相互作用。下列图中用阴影部分表示电子可能经过的区域，其中正确的是
河南省天一大联考2019-2020学年高二上学期阶段性测试(二)数学(文)试题(带答案)
试卷第1页，总4页 河南省天一大联考2019-2020学年高二上学期 阶段性测试二--文科数学试题 第I 卷（选择题) 一、单选题 1．已知集合{}2560A x x x =-+≥，{}13B x x =-≤<，则A B =I （ ） A ．[]1,2- B ．[]1,3- C ．[]2,3 D ．[)1,-+∞ 2．如果0b a <<，那么下列不等式错误的是（ ） A ．33a b > B ．b a > C ．ln 2ln 2a b < D ．11b a < 3．命题“[)2,x ?∈+∞，()2log 10x ->”的否定为（ ） A ．[)2,x ?∈+∞，()2log 10x -< B ．[)02,x ?∈+∞，()20log 10x -≤ C ．(),2x ?∈-∞，()2log 10x -< D ．()0,2x ?∈-∞，()20log 10x -≤ 4．“函数()(21)x f x a =-是增函数”是“2a >”的（ ） A ．充分不必要条件 B ．必要不充分条件 C ．充要条件 D ．既不充分也不必要条件 5．已知{}n a 是等差数列，且2a ，4038a 是函数()2162020f x x x =--的两个零点，则 2020a =（ ） A ．8 B ．8- C ．2020 D ．2020- 6．已知双曲线C ，则该双曲线的实轴长为（ ） A ．1 B C ．2 D ．7．在ABC V 中，a ，b ，c 分别是角A ，B ，C 的对边，若()()0a b c a b c ab ---++=且1sin 2 A =，则 B =（ ） A ．2π B ．3π C ．4π D ．6 π
2020-2021学年河南省天一大联考高二阶段性测试(一) 生物 Word版
2020-2021学年河南省天一大联考高二阶段性测试（一）生物 考生注意： 1.答题前考生务必将自己的姓名、考生号填写在试卷和答题卡上，并将考生号条形码粘贴在答题卡上的指定位置。 2.回答选择题时，选出每小题答案后，用铅笔把答题卡对应题目的答案标号涂黑。如需改动，用橡皮擦干净后，再选涂其他答案标号。回答非选择题时，将答案写在答题卡上。写在本试卷上无效。 3.考试结束后，将本试卷和答题卡一并交回。 一、选择题：本题共25小题，每小题2分，共50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.下列属于内环境成分的是 A.RNA聚合酶 B.血红蛋白 C.血清球蛋白 D.唾液淀粉酶 2.神经细胞生活的内环境是 A.血浆 B.组织液 C.淋巴 D.细胞内液 3.血浆中有大量的水，下列不是血浆中水的直接来源的是 A.血细胞 B.组织液 C.淋巴 D.消化液 4.服用葡萄糖酸锌口服液可以补锌。葡萄糖酸锌最先到达的人体内环境成分是 A.胃液 B.组织液 C.血浆 D.细胞内液 5.如图为甲、乙、丙、丁四种体液及它们之间相互关系的示意图，下列相关叙述正确的是 A.甲为细胞内液，丁为血浆 B.甲、乙、丙、丁之间都能够直接相互转化 C.正常情况下，乙、丙、丁的成分和理化性质保持不变 D.外界环境中的氧气通过内环境被细胞利用 6.下列选项描述的变化属于人体内环境理化性质改变的是 A.喝了果醋后胃液pH下降 B.感冒发烧，细胞外液温度上升 C.进食过咸的食物导致口腔上皮细胞皱缩 D.一次性喝水过多，导致尿液增加，尿液渗透压下降
7.如图为正常人体细胞与内环境之间物质交换的示意图，①②③④表示人体内的体液成分。据图判断，下列叙述正确的是 A.剧烈运动产生的乳酸会导致①的pH显著下降 B.②中含有葡萄糖、尿素、纤维素等物质 C.与③相比，①中含有较多的蛋白质 D.淋巴细胞直接生活的环境只有② 8.已知5%葡萄糖溶液的渗透压与动物血浆渗透压基本相同，5%葡萄糖溶液常作为静脉注射的溶液。下列叙述正确的是 A.注射5%葡萄糖溶液后血浆渗透压会迅速升高 B.注射5%葡萄糖溶液后血浆中Na＋浓度会下降 C.注射5%葡萄糖溶液可同时补充盐分和糖分 D.注射的葡萄糖不能供组织细胞利用 9.下列有关人体内环境组成的叙述，正确的是 A.细胞外液只包括血浆、组织液和淋巴 B.糖原水解为葡萄糖的过程发生在内环境中 C.毛细血管处血浆和组织液之间相互转化的量总是平衡的 D.组织液的渗透压升高可能会导致机体细胞发生失水现象 10.皮肤被烫伤后会起“水泡”，“水泡”中的液体主要是 A.组织液 B.血浆 C.淋巴 D.细胞液 11.山西的小王经常吃醋，但他血浆的pH并没有比其他人低，在维持血浆酸碱平衡的过程中，发挥重要作用的离子是 A.Na＋、Cl－ B.HCO3－、HPO42－ C.HSO4－、Cl－ D.Mg2＋、Ca2＋ 12.下表为小明的一天抽查体温的情况表，结合所学知识，不能得出的结论是 A.人体体温的稳定是相对的 B.不同个体的体温是不同的 C.同一个体在不同时间的体温不同 D.小明的体温在正常的范围内变化
2018-2019学年河南省天一大联考高二(下)期末数学试卷(理科)
2018-2019学年河南省天一大联考高二（下）期末数学试卷（理 科） 一、选择题：本题共12小题，每小题5分，共60分在每小题给出的四个选项中，只有一项是符合题目要求的 1．（5分）＝（） A．B．C．D． 2．（5分）已知集合A＝{1+x2，x}，B＝{1，2，3}，且A?B，则实数x的值是（）A．﹣1B．1C．3D．4 3．（5分）给定下列两种说法：①已知a，b，c∈R，命题“若a+b+c＝3，则a2+b2+c2≥3” 的否命题是“若a+b+c≠3，则a2+b2+c2＜3”；②“?x0∈R，使f（x0）＞0”的否定是“?x∈R，使f（x）≤0”，则（） A．①正确②错误B．①错误②正确C．①和②都错误D．①和②都正确4．（5分）已知sin2α＝cos2α（α≠kπ+，k∈Z），则tan2α＝（） A．B．1C．D． 5．（5分）过抛物线y2＝2px的焦点F的直线l交抛物线于A，B两点，其中点A（2，y0），且|AF|＝4，则p＝（） A．1B．2C．4D．8 6．（5分）某几何体的三视图如图所示，则该几何体的体积为（） A．64+B．64+C．64+D．64+8π 7．（5分）某军工企业为某种型号的新式步枪生产了一批枪管，其口径误差（单位：微米）
服从正态分布N（1，32），从已经生产出的枪管中随机取出一只，则其口径误差在区间（4，7）内的概率为 （附：若随机变量ξ服从正态分布（μ，σ2），则P（μ﹣σ＜ξ＜μ+σ）＝68.27%，P（μ﹣2σ＜ξ＜μ+2σ）＝95.45%）（） A．31.74%B．27.18%C．13.59%D．4.56% 8．（5分）已知a，b为两条不同的直线，α，β为两个不同的平面，则 ①若a⊥α，b⊥β，且α∥β，则a∥b；②若a⊥α，b∥β，且α∥β，则a⊥b； ③若a∥α，b⊥β，且α⊥β，则a∥b；④若a⊥α，b⊥β，且α⊥β，则a⊥b； 其中真命题的个数是（） A．4B．3C．2D．1 9．（5分）函数f（x）＝（）|x+1|的图象大致为（） A．B． C．D． 10．（5分）已知双曲线﹣＝1（a＞0，b＞0）的一条渐近线方程为y＝x，P为该 双曲线上一点，F1，F2为其左、右焦点，且PF1⊥PF2，|PF1|?|PF2|＝18，则双曲线的方程为（） A．﹣＝1B．﹣＝1 C．﹣＝1D．﹣＝1
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