江苏省启东中学2013-2014学年高一上学期期中考试英语试题
江苏省启东中学2013-2014学年高一上学期期中考试英语试题（本试题分I卷和II卷，满分120分，时间为120分钟）
I卷（满分90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. How much does Emma usually spend on a haircut?
A. $30.
B. $13.
C. $15.
2. How did Jack go to work today?
A. By car.
B. By bike.
C. By taxi.
3. how much money was paid at first?
A. $300
B. $450
C. $400
4. What does the man mean?
A. He’s got no phone and he feels sorry.
B. Though it’s not a public phone, the woman can use it.
C. The woman can’t use it because it’s not a public phone.
5. What kind of things doesn’t the man like to buy?
A. Cheap things.
B. New things.
C. Used things.
第二节
听下面5段对话。每段对话后有几个小题，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。每段对话读两遍。
听第6段材料，回答第6、7题。
6. What is the man going to do?
A. Paint the wall.
B. Plant trees.
C. Empty the rubbish can.
7. What can we learn about the man?
A. He is talkative.
B. He is helpful.
C. He is confident.
听第7段材料，回答第8--10题。
8. What do you think is the woman?
A. A student.
B. A person working in the office.
C. A nurse.
9. Where is the woman living now?
A. Outside the city.
B. In the city
C. Near the office.
10. Why would the woman like to find an apartment?
A. Need more time to study.
B. Be afraid to go home at night.
C. Want to have some trip.
听第8段材料，回答第11--13题。
11. What is the man?
A. A nurse.
B. A doctor.
C. A chemist.
12. What do we know about the woman?
A. She is wet all over.
B. She is tired.
C. She is ill.
13. Where does the conversation most probably take place?
A. In a garden.
B. In the man’s office.
C. In the woman’s house.
听第9段材料，回答第14--17题。
14. Where is the man’s brother now?
A. In the United States.
B. In Canada.
C. In England.
15. When did the man receive his brother’s letter?
A. Last Sunday.
B. Last Monday.
C. Last Wednesday.
16. When did the man write his brother back?
A. Last weekend.
B. Last term.
C. This Monday.
17. What can we infer from the conversation?
A. Patty is the man’s brother’s girlfriend.
B. The man is not sure they’ll be together forever.
C. The woman didn’t know the man posted the photos of theirs.
听第10段材料，回答第18--20题。
18. Where does the speaker’s friend live now?
A. In Shanghai.
B. In Guangzhou.
C. In Beijing.
19. How often do the speaker and his friend talk on the phone?
A. Twice a month.
B. Once a day.
C. Once a week.
20. How many ways do the speaker and his friend use to keep in touch?
A. 2.
B. 3.
C. 5.
第二部分：英语语言知识运用（共两节，满分40分）
第一节：单项选择（共20 小题；每小题1分，满分20分）
21. Working there is ________unforgettable experience because I gained a lot of _______.
A. a; experience
B. an; experience
C. /; experiences
D. /; experience
22. —He is the only one of the students ______from the country in my class, and we have known for
quite some time.
—Where did you meet for the first time?
—It was on the farm ________ I used to work.
A. who are; that
B. who is; where
C. that is; that
D. whom are; on which
23. Professor White, along with his wife and children, ________ London for Paris tomorrow.
A. are leaving
B. is leaving
C. has left
D. have left
24. You must have missed the first train yesterday, ________ you?
A. weren’t
B. didn’t
C. mustn’t
D. haven’t
25. All her time __________ experiments, so she has no time for films.
A. devoted to do
B. devoted to doing
C. is devoting to doing
D. is devoted to doing
26. He went out to play football, leaving his homework _________.
A. to unfinish
B. to be unfinished
C. unfinishing
D. unfinished
27. —I still remember my wonderful stay there ________ I worked in the distant mountain village.
—But everything is changing so fast, the pe rsons there aren’t the ones ______they used to be.
A. when; that
B. where; whom
C. during which; who
D. which; what
28. Don’t talk about such things ______you are not sure of, ______ is what you should keep in mind.
A. as; which
B. as; that
C. that; as
D. what; where
29. I don’t know the reason _______ you were absent from the meeting, and I am not sure whether someone will
tell me the reason _______you haven’t told me.
A. why; that
B. that; why
C. because; why
D. of which; that
30. China Daily is _________ a newspaper. It helps greatly to improve our English.
A. no more than
B. not more than
C. not less than
D. more than
31. —How do you know so much about what’s going on in the countries?
—I’ve got a friend there who keeps me _______.
A. informing
B. to be informed
C. informed
D. being informed
32. Jane won’t join us for dinner tonight and _____________.
A. Neither won’t Tom
B. Tom won’t either
C. Tom will too
D. So will Tom
33. I worked in a foreign company for five years. Still, I don’t regret ______ the well-paid job.
A. to give up
B. giving up
C. give up
D. given up
34. —Do you think he can get the first prize for jumping?
—Impossible now. He to do so, but he has just hurt his leg.
A. has expected
B. is expected
C. would expect
D. was expected
35. You can’t imagine what _______ his speech on how to improve our spoken English had on me at
that time.
A. impression
B. advice
C. attention
D. effect
36. Some teenagers turn a deaf ear to their parents’ advice, ________ they know it does good to them.
A. now that
B. as if
C. even if
D. so that
37. Lucy was sitting by the desk and chatting online with her friends the last time I ________ to see her.
A. go
B. am going
C. was going
D. went
38. At present, we are studying a total of nine subjects, ________ I think is physics.
A. of them the most difficult
B. and the most difficult of which
C. the most difficult of them
D. the most difficult of which
39. Gun control is a subject ___ Americans have argued for a long time.
A. of which
B. with which
C. about which
D. into which
40. —John，when will you pay a visit to that place of interest?
—I can’t decide at present. _______________.
A. It just depends
B. It’s up to you
C. Take your time
D. I beg your pardon
第二节：完形填空（共20小题；每小题1分，满分20分）
My father died in December. He had spent the last several years in hospital, and my mother spent a lot of her time 41 him. That is without doubt, a 42 situation for any family. And the 43 was a team of fairly frustrated family members.
My biggest frustration was trying to 44 why he didn’t make choices that would 45 him to be
involved more fully in the lives of his grandchildren. Yet he 46 each and every one of them. Every morning he asked my mother which of his grandbabies was going to 47 that day. He had frequent visits from his collection of loving grandkids. Kids would have the place 48 up instantly—toys everywhere, cushions off the couches and the TV channel 49 to their station. Every visit was a kid invasion into his space. Interestingly, he was not at all bothered by the _50 or chaos at all. He was never 51 with them and he certainly never shouted at any child. Visits ended with 52 and kisses.
I felt that relationship wasn’t good enough because he didn’t actually do anything 53 my children. My dad didn’t read to the children, and certainly 54 played a board game or did a puzzle with them. He didn’t take them out for 55 or do any of the other things I saw active grandparents doing with their grandchildren. It made me sad that he was 56 to get on with the kids.
A couple of weeks after his death, my 9-year-old daughter turned up in my bedroom at midnight to share a
57 of him done by herself. Included in the picture were several messages and 58 —one for each day since he had died. The most striking one to me was“I loved EVERYTHING about you, Grandpa”.
Apparently, I was 59 . All that time I thought he wasn’t doing anything with his grandchildren, but he was very actively doing the thing that was most _60 to them. He loved them. And it was all they needed.
41. A. preparing for B. taking care of C. believing in D. looking forward to
42. A. personal B. boring C. difficult D. dangerous
43. A. result B. solution C. reward D. review
44. A. explain B. describe C. accept D. understand
45. A. expect B. allow C. force D. persuade
46. A. respected B. ignored C. loved D. blamed
47. A. leave B. cry C. visit D. perform
48. A. set B. messed C. given D. lit
49. A. introduced B. switched C. pointed D. checked
50. A. impression B. alarm C. expression D. noise
51. A. careful B. intelligent C. inconvenient D. impatient
52. A. tears B. quarrels C. tricks D. hugs
53. A. to B. with C. at D. on
54. A. frequently B. always C. never D. occasionally
55. A. walks B. books C. jokes D. interests
56. A. hoping B. offering C. failing D. promising
57. A. dream B. plan C. story D. drawing
58. A. statements B. photos C. suggestions D. problems
59. A. guilty B. rude C. wrong D. firm
60. A. honest B. important C. normal D. equal
第三部分：阅读理解（共15小题；每小题2分，满分30分）
A
Discover Nature Schools programs
Becoming Bears (Kindergarten-2 grade)
By becoming baby bears, children learn from their “parent” to survive the seasons. Kids will find safety in the spring and learn kinds of food bears eat during the summer, and then create a cave for winter hibernation(冬眠). After learning the skills needed to survive, students will go out of the cave as an independent black bear able to care for themselves. (1.5-2 hours)
Whose Clues? (3-5 grade)
Kids will discover how plants and animals use their special structures to survive. Through outdoor study of plants and animals, kids will recognize their special structures and learn how they enable species to eat, avoid their
enemies and survive. Using what they have learned, kids will choose one species and tell how they survive in their living places. (3-4 hours)
Winged Wonders (3-5 grade)
Birds add color and sound to our world and play an important ecological (生态的) role. Students will learn the basics of birds, understand the role birds play in food chains and go bird watching using field guides and telescopes. Students will do hands-on activities. Students will use tools to build bird feeders, allowing them to attract birds at home.(3-4 hours)
Exploring Y our Watershed (6-8 grade)
We all depend on clean water. Examining how our actions shape the waterways around us. Go on a hike to see first-hand some of the challenging water quality problems in a city. Students will test the water quality to determine the health of an ecosystem.
●Each program is taught for a class with at least 10 students.
●All programs include plenty of time outdoors. So please prepare proper clothing, sunscreen and
insect killers for children.
●To take part in a program , please email dcprograms@https://www.wendangku.net/doc/0a15887449.html,.
61. What can kids do at Becoming Bears?
A. Watch bears’ performances.
B. Take care of bears
C. Dress up as baby bears to learn about bears.
D. Learn how to survive a bear attack.
62. Kids who are interested in plants will choose______________.
A. Winged Wonders
B. Exploring your Watershed
C. Becoming Bears
D. Whose Clues?
63. According to the passage, all the four programs _____________.
A. have the same teaching hours
B. have outdoor activities
C. are offered during summer holidays
D. are designed for primary school students
B
Growing up, I wanted to be just like my mom. She was kind. People always seemed to feel comfortable in her presence. For years, she was a volunteer in our community. I loved going to the local nursing home with her where she taught a ceramic class.
On one summer day, Mama told me to get changed and meet her at the car.
I had planned to spend the day at the lake with friends. Why did she have to ruin everything? I imagined the cool lake water. Irritated, I climbed into the car and slammed the door shut. We sat in silence. I was too upset to make conversation.
“Tasha, would you like to know where we are going?” Mama asked calmly.
“No,” I said.
“We are going to volunteer at a children’s shelter today. I have been there before and I think it would benefit you,” she explained.
When we reached the shelter, Mama rang the doorbell. Moments later, we were greeted by a woman. She led us to the front room where all of the children were playing. I noticed a baby whose body was scarred with iron marks. I was told it was because she wouldn’t stop crying. The majority of the children had noticeable physical scars. Others hid their emotional wounds.
As I took in my surroundings, I felt a gentle tug on my shirt. I looked down to see a little girl looking up at me. “Hi. You want to play dolls with me?” she asked. I looked over at Mama for reinforcement. She smiled and nodded. I turned back and said, “Sure.” Her tiny hand reach ed up and held mine, as if to comfort me.
My mom taught me a valuable lesson that summer. I returned to the shelter with her several times. During those visits, some of the children shared their troubled pasts with me and I learned to be grateful for what I had. Today as I strive to instill (逐渐灌输) these values in my own child, I reflect back to that experience. It was a time that I will never forget.
64. The author admired her mom for ________.
A. her kindness to others
B. her excellent teaching
C. her quality of honesty
D. her positive attitude to life
65. According to Paragraph 3, when she was asked to go out with her mom, the author was ________.
A. excited
B. angry
C. surprised
D. worried
66. From the passage we learn most children in the shelter ________.
A. were often punished by staff
B. weren’t allowed to go outside
C. were once treated badly
D. all suffered from mental illness
67. The underlined word “reinforcement” in the passage is closest in meaning to “________”.
A. truth
B. help
C. comfort
D. support
C
A study shows that nearly ninety percent of teens report that they have tried alcohol. That’s an increase of 23 percent in just four years!
Each year, 1.1 billion cans of beer are drunk by students aged 15-19 years old. Beer is the most common alcoholic drink among teens—81 percent of the drinkers had tried it. Beer is followed by wine with 63 percent, hard liquor(烈酒) with 53 percent and wine coolers with 35 percent.
When the young people are asked why they drank, the most common answer is that drinking is “something to do”. If a teen’s parents drink alcohol, the teenager is more likely to start drinking at an early age. Also, tens see all of their friends drinking alcohol so they think it is the must-to-do thing. Peer pressure is probably the hardest thing teens have to deal with. What’s more, teens often drink alcohol because it makes them feel older and cooler.
Researchers asked 56,000 students about their drinking habits and grades, to see how drinking might affect their grades in school. The results seem to be clear. Students who got a C level or lower tend to use three times as much alcohol as those who got B’s or A’s.
Alcohol use can be deadly. About 8,100 young people are killed per year in alcohol-related accidents. Eight young people die per day as a result of a drunk-driving accident. Between 50 and 65 percent of all teen suicides (自杀) occur after the young people drink.
So you see, drinking the alcohol doesn’t always end up with a good time. The next time you try to push someone to drink or someone tries to push you to drink, please remember this. One drink can set the habit for life. Why not throw it away?
68. The reasons for teens’ drinking alcohol are mentioned EXCEPT that _______________.
A. they think it is cool to drink alcohol
B. their parents set a bad example to them
C. alcohol can make them happier
D. peer pressure plays an important role
69. What can we learn from paragraph 4?
A. Drinking alcohol makes students stupid.
B. Good students never try alcohol.
C. Drinking habits have something to do with IQ.
D. Students with poor grades tend to use more alcohol.
70. The passage was written mainly to ______________________.
A. show the bad effect of drinking alcohol
B. show how many teenagers drink alcohol
C. tell teenagers not to try alcohol
D. tell the reasons why teenagers drink alcohol.
D
As I was busy working on my work plan in my bedroom, I could hear my four children playing upstairs. Suddenly, I heard the children running down the stairs and shouting, “Freddie, Freddie.”I heard the word “window” and rushed outside, heart in mouth. My three-year old son Freddie was lying on his side on the ground.
I cried for my husband Simon to dial 999 and within minutes the air ambulance arrived. They quickly took him in the helicopter. During the flight, Freddie was looking at me and I remember thinking was a good sign, but then his
eyes began to roll. As the doctors tried to stabilize(稳定) him, I couldn’t believe what was happening.
When we arrived at the hospital in Portsmouth, there were some doctors and nurses waiting for us and they immediately set to work on Freddie. I was hopelessly wishing everything would be alright, but Freddie had broken his skull in two places and blood clots were forming in his brain. He needed surgery(外科手术), and only a surgeon at another hospital in Bristol could do it. This meant another helicopter ride, but we couldn’t go with Freddie because there was no enough space. Simon and I drove the long 130 miles from our home in north Devon in silence. Neither of us dared say what we were thinking, “What if we get there and he’s dead?”“Is he going to be brain-damaged?”
Freddie was just coming out of surgery when we arrived. The surgeon said it had gone well. When I finally saw him, I hardly recognize my child—he was covered in tubes and there were wires coming out of his head.
On the third day, Simon went home to see our three girls and to pick up some clean clothes for us. While he was gone, the pressure in Freddie’s brain suddenly increased. He was taken into theater again and this time I fell apart. Luckily, the surgery managed to stabilize Freddie. After almost a week, Freddie was finally woken up. When he opened his eyes, he looked at me. He didn’t say anything, but I knew straight away that it was my old Freddie, and that he was going to be alright. Over the next two weeks, his recovery went well. After help with learning to swallow again and encouragement with speaking, he was soon playing with his Gruffalo cards and eating meals by himself.
I still don’t know how the accident happened, but we got some idea from our girls. Clearly Freddie and Minnie had been sitting on the window ledge, and Freddie must have opened it to look out and fallen 20 feet onto the ground below.
The guilt I feel is awful—for weeks I was full of “if onlys”, and we put window locks everywhere. Six months later, although the accident seems a lifetime ago, it has changed me. I feel differently about life now. I’ve left my job to put my children first. I want to spend every minute with them.
71. The underlined sentence in paragraph 1 shows the author was ______________.
A. hopeless
B. worried
C. curious
D. puzzled
72. Why did the author’s son have to be moved to another hospital in Bristol?
A. Because no surgeons were on duty in the first hospital that day.
B. Because the author wanted his son to stay in a hospital nearer her home.
C. Because no surgeons in the first hospital knew the injuries to the author’s son.
D. Because no surgeons in the first hospital could do surgery on the author’s son.
73. When the author finally saw her son, she could hardly recognize him probably because his
face_____________.
A. was seriously injured
B. was filled with small pipes
C. was too pale to be recognized
D. was covered by a piece of cloth
74. On the third day after being taken to the hospital, _____________.
A. the author’s son finally opened his eyes.
B. the situation of the author’s son suddenly worsened
C. the author’s son was finally out of danger
D. the author’s son did not need any more surgery
75. After the accident, what did the author probably learn?
A. Life is full of “if onlys”.
B. Being a single mother is not easy.
C. Children are more important than work.
D. Accidents can happen to every kid.
II卷（共30分）
第四部分：任务型阅读（共10小题；每小题1分，满分10分）
请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。注意：每个空格只填1个单词。
The concept of homeschooling is not a new one. Homeschooling means educating children at home instead of sending them to public or private schools. Nowadays, homeschooling has become popular in many countries for a
variety of reasons. One of them is poor quality of education in public schools and it’s also because private schools are quite expensive. Some parents believe that because they know their child’s strengths and weaknesses, they can teach him or her better. Some parents prefer homeschooling so as to prevent their children from getting into bad company. There is another group of people who choose to educate their children at home because they want them to learn spirit and values of the family and also their religious beliefs. They also think that homeschooling would help in development of strong family bonds(家庭纽带).
However, there are some negative effects of homeschooling on students as well as parents.
Homeschooling is a full-time job and not fit for parents who have their own careers. It takes a lot of time for parents’ side to make homeschooling a success. Other family members’ responsibilities may also be affected. They may give their full attention to the needs of their children. Besides, a parent may have high educational qualifications, but that does not make him or her a good teacher. Teaching is an art, which requires the ability to understand the needs of the children. It is likely that the parent might have forgotten what he or she has learned, and the curriculum(课程) of the children would also be different. This would make it difficult for the parents to explain the concepts to their children. Parents also have the responsibility of designing the curriculum of students.
In today’s world, competition(比赛) is seen in every field, and school prepares children to face these competitions. However, homeschooling does not give the children a chance to compare with other kids. They will also not be aware of where they stand in educational position among their classmates. This may affect their future lives. Education is not the only thing that the children need to become successful human beings. It is necessary that they learn to communicate in the society, and public school provides them with such an environment, where they meet many people. Schools also provide children with a chance to take part in various activities to improve their overall development.
It is true that it has many benefits, but one must realize that school teaches children skills to face and survive.
第五部分：基础知识（共20题，每题1分，共20分）
(一) 单词拼写（根据所给的首字母或中文写出适当的单词）
1. Flying across the Atlantic for the first time was a great ________________(成就).
2. Now that you are a college student, you should learn to be__________（独立的）of your parents' help.
3. The teacher gave us a clear _______________________(解释) on the use of the word.
4. He is a f______________ as an artist, but a success as an art teacher.
5. He was able to speak Spanish f_____________ after living in Spain for 30 years.
6. I felt _______________ (尴尬的) about what a mess my house was.
7. When Mary came across the hard words, she always _______________(跳跃) them..
8. All the homework was in English, so it was a bit c____________ for me at first.
9. The teacher said it was one of the best _______________ (作品) he had heard.
10. This job calls for great patience and _______________ (集中注意力).
(二) 根据所给中文完成句子(每空一词)
1. _________ __________ (一到达) at the flooded area, the soldiers began to do rescue work at once.
2. The news excited him so much that he _______ ______ _______(迫不及待)tell it to his parents.
3. Never leave him_______ _______ _______(负责)the project. He deserves no trust.
4. The girl always tries various weight-loss pills, and __________ _____________ _________
(非常想要) be slim and a model in the future.
5. ________ ________ ________ ________（从长远角度看）, a good amount of sleep is important for our health.
6. I think you look great_______ __________ _______(像你现在这样), and you are a great person.
7. This course aims to __________ _____________ _______(为学生而作准备) their studies abroad.
8. Nobody knows exactly what will happen in the years __________ __________. (接下来的)
9. You ______ __________ _________(理应该) hand in your homework last Monday, but you didn’t.
10. ____________ ________ regularly(锻炼身体)and going on a diet can help you stay slim.
完形填空
41---45 BCADB 46---50 CCBBD 51---55 DDBCA 56----60 CDACB
阅读理解
61---63 CDB 64---67 ABCD 68---70 CDC 71—75 BDBBC
任务型阅读
76. public 77. Reasons 78. expensive /high 79. better 80. helpful
81. effects 82. focus/concentrate 83. teachers 84. compare 85. various
单词拼写
1. achievement
2. independent
3. explanation
4. failure
5. fluently
6. embarrassed
7. skipped
8. challenging
9. compositions 10. concentration 完成句子
1. Upon/On arriving
2. couldn’t wait to
3. in charge of
4. is dying to
5. In the long term
6. as you are
7. prepare students for
8. to come
9. were supposed to 10. Working out
2020上海中学 高一下期中数学
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启东中学2015～2016学年度第一学期第一次阶段测试 高三数学试题 命题人：俞向阳 一、填空题：本大题共14小题，每小题5分，共70分． 1．已知集合{}1,2,4A =，{}|(1)(3)0B x x x =--≤，则A B = ． 2．命题“[0,)x ?∈+∞，23x >”的否定是 ． 3．在3和243中间插入3个实数1a ，2a ，3a ，使这5个数成等比数列，则2a = ． 4．已知7sin cos 13αα+=- ，π (,0)2 α∈-，则tan α= ． 5．函数()ln 23x f x x =+-在区间(1,2)上的零点个数为 ． 6．已知定义在R 上的函数2()23f x ax x =++的值域为[2,)+∞，则()f x 的单调增区间为 ． 7．函数3()812f x x x =+-在区间[33]-， 上的最大值与最小值之和是 ． 8．等差数列{}n a 的前m 项的和为30，前2m 项的和为100，求它的前3m 项的和为 ． 9．若α、β均为锐角，且1cos 17α= ，47 cos()51 αβ+=-，则cos β= ． 10．函数()x f y =是R 上的奇函数，满足()()x f x f -=+33，当(0 ,3)x ∈时，()x x f 2=，则 (5)f -= ． 11．如果若干个函数的图象经过平移后能够重合，则称这些函数为“互为生成”函数，给出下 列函数： ⑴1()sin cos f x x x =+；⑵2()f x x ；⑶3()cos )f x x x +； ⑷4()sin f x x =；⑸5()2cos (sin cos )222 x x x f x =+，其中“互为生成”函数的 有 ．（请填写序号） 12．已知ABC ?是单位圆O 的内接三角形，AD 是圆的直径，若满足2 AB AD AC AD BC ?+?= ， 则||BC = ．
2018-2019学年上海市上海中学高一下期中考试数学试题(解析版)
2018-2019学年上海市上海中学高一下期中考试数学试题 一、单选题 1．若则在 A．第一象限B．第二象限C．第三象限D．第四象限 【答案】D 【解析】根据三角函数值在各个象限的正负，判断出角的终边所在的象限. 【详解】 由于，故角为第一、第四象限角.由于，故角为第二、第四象限角.所以角为第四象限角.故选D. 【点睛】 本小题主要考查三角函数值在各个象限的正负值，根据正切值和余弦值同时满足的象限得出正确选项. 2．函数的部分图像如图,则可以取的一组值是 A．B． C．D． 【答案】C 【解析】试题分析：∵，∴，，又由得. 3．在△ABC中,分别为三个内角A、B、C的对边,若则△ABC的形状是A．等腰三角形B．直角三角形 C．等腰直角三角形D．等腰或直角三角形 【答案】D 【解析】利用正弦定理化简得：，再利用二倍角公式整理得： ，解三角方程即可得解。 【详解】
由正弦定理化简得：, 整理得：，所以 又，所以或. 所以或. 故选：D 【点睛】 本题主要考查了正弦定理及三角恒等变换，还考查了正弦的二倍角公式及三角函数的性质，属于中档题。 二、填空题 4．函数的最小正周期是_________. 【答案】 【解析】直接由周期公式得解。 【详解】 函数的最小正周期是： 故填： 【点睛】 本题主要考查了的周期公式，属于基础题。 5．已知点P在角的终边上,则_______. 【答案】0 【解析】求出到原点的距离，利用三角函数定义得解。 【详解】 设到原点的距离，则 所以，， 所以 【点睛】 本题主要考查了三角函数定义，考查计算能力，属于基础题。 6．已知扇形的周长为10 cm，面积为4 cm2，则扇形的圆心角α的弧度数为__________．
启东中学苏教版高一英语第二学期第一次考试题及答案
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启东中学2007年高一英语第二学期第一次月考试题 一听力 第一节.听下面五段对话，选择最佳答案。 1．What is Tom’s telephone number A. B. 87569960 C. 2. In which year was Stephen’s daughter born A. 1969 B. 1996 C. 1997 is Dr Baker now 4. What are the two speakers talking about A. A good novel B. A good writer C. A good storybook is the man tired A.Because his new job is difficult. B.Because his new job is well-paid. C.Because he has to work long hours every day. 第二节.听下面五段对话，选择最佳答案。 听第六段对话，回答6至7题。 are the two speakers going to do this evening A.Go and see a friend of theirs. B.Have dinner in their friend’s house C.Finish a book together. 7．How are they going to go there A. By bus B. In their own car C. In their friend’s car. 听第七段对话，回答8至10 题 8. Why does the woman want to give the party A.Because she has just moved into a new house. B.Because she misses her friends. C.Because it is now her turn to give a party. is the man going to do next Monday A. the man leaves the party at 11, how long will he have stayed there at most A.Three hours B. Four hours C. Five hours 听第8段对话，回答11-13。 many times has the man been to China A.Three times B. Only twice C. Only once does the man think of Beijing A.Beijing is a good place. B. B. There are many cars in Beijing. C.Only a few people ride bicycles in Beijing
启东中学高三英语年段过关试题及答案
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2020年江苏省启东中学高考模拟试卷(一)高中物理
2020年江苏省启东中学高考模拟试卷（一）高中物理 物理试题 一、单项选择题〔此题共6小题，每题3分，共18分。每题只有一个选项符合题意〕 1．玻尔认为，围绕氢原子核做圆周运动的核外电子，轨道半径只能取某些专门的数值，这种现象叫做轨道的量子化。假设离核最近的第一条可能的轨道半径为1r ，那么第n 条可 能的轨道半径为12r n r n =〔n =1，2，3…〕，其中n 叫量子数。设氢原子的核外电子绕 核近似做匀速圆周运动形成的等效电流，在2=n 状态时其等效电流为I ，那么3=n 在状态时等效电流为 A ．I 23 B ．I 32 C ．I 94 D ．I 27 8 2．电磁波和机械波相比较：①电磁波传播不需要介质，机械波传播需要介质；②电磁波在任何物质中传播速度都相同，机械波波速大小决定于介质；③电磁波、机械波都会发生衍射；④机械波会发生干涉，电磁波可不能发生干涉。以上讲法正确的选项是 A ．①③ B ．②④ C ．①④ D ．②③ 3．如以下图所示，用薄金属板制成直角U 形框，U 形框的a 、b 两面水平放置，将一质量为m 的带电小球用绝缘细线悬挂在a 面的中央，让整个装置始终置于水平匀强磁场中；并以水平速度v 向左匀速运动〔v 垂直于B 〕。U 形框的竖直板c 与v 垂直，在那个运动过程中U 形框的a 板电势低，b 板的电势高。设悬线对小球的拉力大小为F ，不计a 、b 面由于运动产生的磁场，那么以下讲法中正确的选项是 A ．一定是mg F = B ．可能是0=F C ．可能是mg F > D ．可能是mg F <，)0(≠F 4．宇航员在探测某星球时发觉：①该星球带负电，而且带电平均；②该星球表面没有大气；③在一次实验中，宇航员将一个带电小球〔其带电荷量远远小于星球电荷量〕置于离星球表面某一高度处无初速开释，恰好处于悬浮状态。假如选距星球表面无穷远处的电势为零，那么依照以上信息能够推断 A ．小球一定带正电 B ．小球的电势能一定小于零
上海市徐汇中学2018-2019学年高一物理下学期期中试题(带解析)
上海市徐汇中学2018-2019学年高一物理下学期期中试题 一、单项选择题 1.匀速圆周运动是一种( ) A. 匀速运动 B. 匀加速运动 C. 匀加速曲线运动 D. 变加速曲线运动 【答案】D 【解析】 匀速圆周运动加速度始终指向圆心，方向时刻在变化，加速度是变化的，是变加速曲线运动，故D 正确，ABC 错误。 2.由于地球自转，地球表面上的物体都随地球一起作匀速圆周运动，将地球视为球体，如图所示， a 、b 两处物体运动的（ ） A. 线速度相同 B. 角速度相同 C. 线速度不同，且v a ＞v b D. 角速度不同，且 a ＜ b 【答案】B 【解析】 a 、 b 两处物体随地球自转一起作匀速圆周运动，则a b ωω=，又因为两者转动的半径a b r r <，据v r ω=可得：a b v v <。 故B 项正确。 点睛：同轴传动：被动轮和主动轮的中心在同一根转轴上，主动轮转动使轴转动进而带动从动轮转动，两轮等转速及角速度。皮带传动：两转轮在同一平面上，皮带绷紧与两轮相切，主动轮转动使皮带动进而使从动轮转动，两轮边缘线速度相等。
3.匀速圆周运动中，线速度v 、角速度ω、周期T 、半径R 之间的关系，正确的是（ ） A. ω=vR B. ω=2πT C. v =ωR D. 1 T ω = 【答案】C 【解析】 【详解】根据角速度定义： 2t T θ πω= = 线速度定义： 2s R v t T π= = 可知： v R ω= v R ω= 2T π ω = A ．ω=vR ，与分析不符，故A 错误； B ．ω=2πT ，与分析不符，故B 错误； C ．v =ωR ，与分析相符，故C 正确； D ．1 T ω =，与分析不符，故D 错误。 4.如图所示，弹簧振子在B 、C 两点间做无摩擦的往复运动，O 是振子的平衡位置．则振子( ) A. 从B 向O 运动过程中速度一直变小 B. 从O 向C 运动过程中速度一直变小 C. 从B 经过O 向C 运动过程中速度一直变小 D. 从C 经过O 向B 运动过程中速度一直变小 【答案】B 【解析】
江苏启东中学高三英语单元检测17
江苏省启东中学2010届高三英语单元检测（17） 单项填空 the same poem aga in and aga in. B. to practice readi ng D. practic ing read ing _ by his frien ds. B. to be betrayed D. havi ng betrayed ___ n ever come to shop there aga in. B. determ ined C. am to blame 10. Sorry for havi ng delayed A. an sweri ng C. to have an swered 11. I ' d like my child ___ A. educat ing C. to be educated 12. My son prete nded _______ A. to sleep C. being sleep ing 13. _____ in the book, she did n A. Having absorbed C. Absorbed D. am to be blamed your letter in time. B. to an swer D. havi ng an swered in a school of high quality. B. to educate D. being educated whe n I came back. B. Being absorbed D. To absorbed 14. The man we followed sudde nly stopped and looked as if right direct ion. 4. Each year some foreig n stude nts A. are admitted to our school. B. are admitted by C. have admitted into D. have bee n admitted to 5. The boy swore the won derful film before. A. to see B. to see ing C. to havi ng see n D. havi ng see n 6. The stude nts liste ned carefully to the teacher with their eyes _ A. to focus B. focus ing C. being focused D. focused 7. How can you sta nd _______ in the public? A. laugh ing at B. to laugh at C. being laughed at D. to be laughed at 8. The girl is _______ t o give us some help if asked. A. possible B. likely C. probably D. possibly 9. It is I that ______ for the mistake in the work. A. is blamed B. is to blame on the blackboard. 1. The teacher kept us ______ A. practici ng to read C. to practice to read 2. The boy sat there sad, ____ A. feeli ng betrayed C. bee n betrayed 3. The angry lady left the shop, A. determ ining C. to determ ine D. determ ine B. sleep ing D. to be sleep ing 't hear what I said to her at all. whether he was going in the
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