江苏省启东中学2019-2020学年高一下学期期中考
试英语试题
学校_________ 班级__________ 姓名__________ 学号__________
一、阅读选择
1. You can find hundreds of free comedy(喜剧) movies online, saving you money, as well as the trouble of going out to rent a DVD
or visit a movie theater.
Hulu’ Free Comedy Movies
Hulu has the best selection of free comedy movies that you can watch online right now. You can look through newly added comedies or the most popular ones from today, this week, this month, or all time. Hulu also has a huge collection of funny free TV shows and movies available but you’ll have to watch advertisements placed like commercials throughout the shows or movies you are viewing.
Free Comedies at Popcornflix
Popcornflix is a legal website where you can watch full-length strea ming movies in both the U.S. and Canada. You’ll see lots of actors and actresses you’ll recognize here in some movies you’ve heard of and some you haven’t. You don’t need to register, so
you’ll be enjoying your chosen movie or TV show in seconds. However, this video streaming service is ad-supported, so you will have to sit through a few commercial breaks during your movie.
Free Comedy Movies at Tubi TV
Thousands of free movies and TV shows are available through Tubi TV, and they can all be viewed on a number of mobile device in
addition to a computer. There’s also a whole section at Tubi TV
that’s just for comedy videos. Some movies require you to log in to view them, but registration is free and only takes a few moments.
Classic Cinema Online’s Comedies
Dozens of free classic comedies are available from Classic Cinema Online. What really makes Classic Cinema unique from the rest is its
rather large selection of silent films. While there’re only a large handful of movies at Classic Cinema Online, if you love classic and silent movies, you really need to check it out.
【小题1】What does Hulu’s Free Comedy Movies offer apart from free comedy movies?
A．Free-books. B．Funny free TV shows C．Science fiction. D．Action movie
【小题2】What can we learn about Free Comedies at Popcornflix? A．No registration is required. B．Its movies are all popular.
C．It has a whole section of comedy videos. D．Its movies can be watched anywhere.
【小题3】What makes Classic Cinema Online’s Comedies stand out from the rest?
A．Dozens of free classic comedies. B．A large selection of silent films.
C．Rather fine video quality. D．The best selection of movies.
2. It was a morning in January. The jet stream (急流)had dipped down, causing the Arctic cold to reach the mountains of my home. It was only 2 degrees outside, but the cold wind made it feel like it was 15 below zero. Still, I was kneeling in the snow alongside my house trying to open a tiny door, so I eoukl get in. 1 had forgotten to leave my water dripping the night before and now my water pipes were frozen and my faucets(水龙头)were dry.
The wind cut into me like a knife while I struggled to get two electric heaters in place around the section of frozen pipes. The waterlines were buried except for a small piece that connected up to my house. I put a heater on each side of it, ran the extension
cords(软线)into my house and plugged them in. Both heaters roared to life and started blowing hot air on the frozen water pipes. My
fingers had already started to go numb, so I stayed inside to wait. I could only hope that this bit of warmth could get my water flowing again. Finally, after twenty minutes, the water started flowing through my faucets again. I went back outside into the biller cold and gathered my heaters up. I looked at the weak January sun shining on the frozen snow and smiled. Then I sent a joy filled with "Thank you" heavenward and returned inside to make myself a hot breakfast.
Sometimes the coldness of this life can get to us as well. It can make our hearts feel icy and frozen. It can keep our kindness and love from flowing out to others. Sometimes, though, all we need is a bit of warmth to get us going again. It can be a simple smile, a kind
word, a heart-felt hug, a morning sunrise, a bird's song or any
gentle reminder of just how much God loves us. Let us all be grateful for those bits of warmth that gel us going again. And let us all try
to be that bit of wannth for others every chance we get.
【小题1】What was the direct reason why the water pipes were frozen? A．The jet stream.
B．The low temperature.
C．The cold wind.
D．The author ' s own carelessness.
【小题2】Which of the following can replace the underlined phrase "roared to in Paragraph 2?
A．Began functioning smoothly.
B．Worked inappropriately.
C．Broke down suddenly.
D．Screamed out loudly.
【小题3】What did the author think of his work?
A．Embarassed.
B．Satisfied.
C．Mad with joy.
D．Cautiously optimistic.
【小题4】What is the last paragraph mainly centered on?
A．The coldness of life has a negative effect on our life quality. B．We meet with the coldness of life unavoidably and unwillingly. C．We should be thankful for bits of warmth of life.
D．We should seize every chance to receive warmth of life from others.
3. America’s latest superhero Austin Perine, who calls himself President Austin, is now taking the country by storm. But he
is not a typical superhero. Two things set him apart: He doesn’t
fight human enemies, but hunger and homelessness. Also, he’s only
four years old.
Our superhero’s origin story started from the day when TJ Per ine, his father, took Austin to the Firehouse Ministries, a local shelter that provides housing, food and other services for the homeless. As they drove by the building, they saw a group of 25 homeless men standing on the street corner. That day, Austin used his allowance (零用钱) to buy each man a sandwich and handed the food out himself with his slogan, “Don’t forget to show love!”
After he returned, words of Austin’s kindness spread through social media. Austin and TJ could feed 25 to 50 people at a time
上海中学 2019-2020 学年高一下期中考试 一、填空题（每空3分,共30分） 1.已知点A (2,-1)在角α的终边上,则sin α=__________. 2.函数sin(2)y x π=+的最小正周期是________. 3．一个扇形半径是2,圆心角的弧度数是2,则此扇形的面积是________. 4.已知函数[]()sin (0,)f x x x π=∈和函数1()tan 2 g x x = 的图像交于A 、B 、C 三点,则△ABC 的面积为________. 5.在平面直角坐标系xoy 中,角α与角β都以x 轴正半轴为始边，它们的终边关于y 轴对称.若1sin 3 α= ,则cos()αβ-=__________.6.已知3sin()45x π-=,则sin 2x =__________.7.设(),0,x y π∈，且满足2222sin cos cos cos sin sin 1sin() x x x y x y x y -+-=+，则x y -=_____.8.我国古代数学家秦九韶在《数学九章》中记述了“三斜求积术”,用现代式子表示即为：在△ABC 中，A ∠、B ∠、C ∠的对边分别是a 、b 、,c 则△ABC 的面积 S =.根据此公式，若cos (3)cos 0a B b c A ++=,且2222a b c +-=,则△ABC 的面积为_______. 9.若函数()2sin(2)1()6f x x a a R π=++-∈在区间0,2π?????? 上有两个不同的零点12,x x ,则12x x a +-的取值范围是__________. 10.已知函数sin ()cos m f ααα-=在(0,2 π上单调递减,则实数m 的取值范围是________.二、选择题（每题4分,共24分） 1.已知cos ,(1,1),(,)2k k π ααπ=∈-∈,则sin()πα+=() A. B. C. D.1k -
高一英语试卷 （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.
江苏省启东中学2007-2008学年第一学期高三期中试卷 英语2007. 11 第I卷(共85分) 第一部分听力（共两节，每小题1分，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 does the man feel about going to school by bike? A. Happy. B. Tired. C. Worried. 2. When can the woman get the computers? A. On Tuesday. B. On Wednesday. C. On Thursday. 3. What does the woman think of the shirt for the party? A. The size is not large enough. B. The material is not good. C. The color is not suitable. 4. How much will the man pay for the tickets? A. 7.5 pounds. B. 15 pounds. C. 50 pounds. 5. Which is the right gate for the man’s flight? A. Gate 16. B. Gate 22. C. Gate 25. 第二节（共15小题；每题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，每小题将给出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 can we learn about Mr. Brown? A. He is in his office. B. He is at a meeting. C. He is out for a meal. 7. What will the man probably do next? A. Call back. B. Come again. C. Leave a message. 听第7段材料，回答第8、9题。 8. What kind of room does the man want to take? A. A single room. B. A double room. C. A room for three. 9. What does the man need to put in the form? A. Telephone and student card numbers. B. Student card number and address. C. Address and telephone number. 听第8段材料，回答第10至12题。 10. What is the relationship between the speakers? A. Fellow clerks （职员）. B. Boss and secretary. C. Customer and salesperson. 11. What does the man like about his job? A. Living close to the office. B. Chances to go abroad. C. Nice people to work with.
江苏省启东中学学校网站改版采购询价 公告 询价编号: QDZX******** 江苏省启东中学根据XX市财政局、教育局采购管理的有关规定，就XX市教育体育局2020年3月5日批准的XX市教育系统政府采购项目集中采购审批表，江苏省启东中学校园网改版及网站托管维护等服务项目进行询价采购(详细内容见附表)。 说明： 一、本项目的总价最高限价为人民币伍万贰仟肆佰元柒拾伍元（52475），具体内容详见表一，报价超过最高限价的为无效报价。 二、供应商资格要求： 投标人须符合《中华人民共和国政府采购法》第二十二条的规定及《中华人民共和国政府采购法实施条例》第十七条的规定，并在投标文件中提供下列材料： （1）提供营业执照、税务登记证、组织机构代码证（或三证合一的营业执照）副本扫描件，且营业执照中有相关项目的资质。 （2）提供2019年财务审计报告的复印件(原件备查)或开户银行出具的资信证明。 （3）提供近期依法缴纳员工社会保障记录 三、报价注意事项： 1.供应商应按照本询价公告的要求编制报价文件，报价文件应对本询价公告提出的要求和条件作出实质性响应（规格、参数、数量详见表一）。否则按照不响应处理。报价中含相关附件、货物运输、税
金、质保、售后服务等所有相关费用，学校在使用过程中不增加任何 费用，请各供应商在报价时请充分考虑各种因素（如运输、送货、安 全保险等各种费用）。 2.供应商应详细阅读询价文件的全部内容，供应商对询价文件有 疑问或异议的，请在递交报价文件3日前以书面形式（加盖单位公章）递交至采购单位。 3.采购内容：江苏省启东中学校园网改版及网站托管维护等服 务。 有关技术及需求问题，请与采购单位联系。 采购单位：启东中学联系人： XXX 联系电话：******** 4.报价文件构成 （1）资质证明文件（加盖报价单位公章）：（1）法定代表人身份 证明书及法定代表人身份证复印件；（2）法定代表人授权委托书及代 理人身份证复印件（如有）；（3）企业营业执照、税务登记证、组织机 构代码证（三证合一的只提供企业营业执照）；（4）业绩证明材料（附 合同）；（5）报价清单（附表二）；（6）报价承诺书（按照附件四格式 填写） 上述资料复印件须加盖公章，材料清单依次装订成册。投标时一 次性递交资料，并提供相应原件以供审核，不接受补充资料。投标 文件一式二份（正本壹份、副本壹份）。上述材料本公告提供格式 的，请按附件中的格式填写。 报价文件中必须包含上述要求提供的所有材料，否则以未实质性 响应询价文件处理。报价文件装订成册并密封，密封袋上标明：询价 编号、项目名称、报价单位名称，否则视为无效报价。 5.报价文件递交 报价文件请于2020年 3月 30 日上午 8 ：30 - 9 ：30密封
Module 1 Unit 1 Language points Welcome to the unit 1.What is your dream school life like ? 你理想的学校生活是什么样的？ ①What is / are sth. like ? ……是什么样的？=How is / are sth.? What is the weather like today ?=How is the weather today ? ②What is / are sb. like ? 某人长得是什么样的（从外貌角度）？/ 某人的人品怎么样？ —What is his father like ? 他的父亲长得是什么样子？/ 他爸爸的为人怎么样？ —He is tall and handsome . / He is honest and friendly . ③What does sb like? ---What does he like? ---He likes basketball. 【联想拓展】 How do you find /like…? 你认为……怎么样？What do you think of …? feel like (doing) sth：想要做…… I don’t feel like ______ . (有几个答案选几个) A. to eat anything B. eating anything C. any food D. eat food 【思维演练】 ①______ will the future life _______ _______ ? A. How; like B. What ; be like C. What ; is like D. How ; be like ②—How did you find the art show last Sunday ? —____________. A. Wonderful B. By asking a man C. Wonderfully D. I didn’t know the way ③—________do you think of my work ? —Great / Wonderful / Excellent . A. How B. What C. How much D. Who ④---How did you find your way here this morning ? ---__________. A. Wonderful B. Easily C. By asking a policeman for help D. By bike Reading 1．Going to a British high school for one year was a very enjoyable and exciting experience for me. Going ….是动名词短语作主语。exciting 是分词作定语 My daughter’s staying up so late worried me.= It worried me that my daughter stayed up late. 【思维演练】: ①__________ languages requires time and effort. A. Learn B. Learning C. To learn D. Being learned ②---“What made you so upset?” ---“_________ three tickets to the pop music concert.” A. Lost B. Losing C. Because of losing D. Since I lost ③____the meeting himself gave them a great deal of encouragement． A. The president will attend B. The president to attend C. The president attended D. The president’s attending 2．This means I could get up an hour later than usual. (1) mean a..意味着~doing/n/that clause b. 意欲，打算~to do sth 【思维演练:】 ①---That would mean ____ much more money.---Really? I don’t mean ____ any more money. A. wasting ; wasting B. to waste; to waste C. to waste; wasting D. wasting; to waste ②In some parts of London，missing a bus means ____for another hour． A. waiting B. to wait C. wait D. to be waiting
2020届江苏启东中学高三下学期测试英语试题 学校_________ 班级__________ 姓名__________ 学号__________ 一、单项选择 1. Our country is accelerating the construction of Xiong'an New District,_______will be a green, low-carbon, open, innovative and highly-competitive city. A．one B．one that C．that D．what 2. People always _______education with exam success, which forces students to keep improving their academic abilities. A．involve B．combine C．equate D．compare 3. We should learn to accept the good with gratitude to God.______，we should also learn to accept the bad without complaint. A．Meanwhile B．However C．Therefore D．Moreover 4. China has accelerated crucial transformations in the role of government, _______the market to play a decisive role. A．to allow B．allowed C．having allowed D．allowing 5. _______relevant departments stressed no plastic covers were used for books, I didn't realize these covers contained harmful chemicals. A．Until B．Unless C．While D．Since 6. Consumers' support and encouragement is a _______ stream of motivation for self-improvement of the company. A．casual B．smooth C．current D．steady 7. What a relief! We would be still waiting anxiously in the classroom _______to bring an umbrella with you. A．should you forget B．had you forgotten C．you should forget D．you had forgotten
2019-2020学年江苏省南通市启东中学高三（上）第一次月考数学试 卷1 一、填空题（本大题共14小题，共70.0分） 1. 设集合A ={x|x >2}，B ={x|x <4}，则A ∩B =______． 2. 已知f(x)=ln(e 2x +1)+kx 是偶函数，则k =________. 3. “x >1”是“x 2>x ”的__________条件．(选填“充分不必要”、“必要不充分”、“充要”、 “既不充分又不必要”) 4. 幂函数f(x)=(m 2?3m +3)x m 2?2m+1 在区间(0,+∞)上是增函数，则m =______． 5. 直线3x +√3y ?6=0的倾斜角为_________ 6. 若命题“?x 0∈R ，x 02 +x 0+m <0”是假命题，则实数m 的范围是______． 7. 若tanα+1tanα= 103 ,α∈(π4,π2)，则sin (2α+π4)+2cos π 4 cos 2α的值为 ． 8. 已知函数f(x)={x ?1,x <0 log 2x ?3,x >0 ，则f(16)+f(?12)=______． 9. 如果直线l ：y =kx ?1(k >0)与双曲线 x 2 16 ?y 29 =1的一条渐近线平行，那么k = ______ ． 10. 将函数f(x)=sin (ωx ?π 6)(ω>0)的图象向左平移π 3个单位后，所得图象关于直线x =π对称， 则ω的最小值为 ． 11. 已知函数f(x)={|x +1|,x ≤0 |log 2x|,x >0 ，若方程f(x)=a(a ∈R)有四个不同的解x 1，x 2，x 3，x 4，且x 1< x 2
微信号：JW2215874840或ross950715或Soulzbb 上海中学 2019-2020 学年高一下期中考试 一、填空题（每空3分,共30分） 1.已知点A (2,-1)在角α的终边上,则sin α=__________. 2.函数sin(2)y x π=+的最小正周期是________. 3．一个扇形半径是2,圆心角的弧度数是2,则此扇形的面积是________. 4.已知函数[]()sin (0,)f x x x π=∈和函数1()tan 2 g x x = 的图像交于A 、B 、C 三点,则△ABC 的面积为________. 5.在平面直角坐标系xoy 中,角α与角β都以x 轴正半轴为始边，它们的终边关于y 轴对称.若1sin 3 α= ,则cos()αβ-=__________.6.已知3sin()45x π-=,则sin 2x =__________.7.设(),0,x y π∈，且满足2222sin cos cos cos sin sin 1sin() x x x y x y x y -+-=+，则x y -=_____.8.我国古代数学家秦九韶在《数学九章》中记述了“三斜求积术”,用现代式子表示即为：在△ABC 中，A ∠、B ∠、C ∠的对边分别是a 、b 、,c 则△ABC 的面积 S =.根据此公式，若cos (3)cos 0a B b c A ++=,且2222a b c +-=,则△ABC 的面积为_______. 9.若函数()2sin(2)1()6f x x a a R π=++-∈在区间0,2π?????? 上有两个不同的零点12,x x ,则12x x a +-的取值范围是__________. 10.已知函数sin ()cos m f ααα-=在(0,2 π上单调递减,则实数m 的取值范围是________.二、选择题（每题4分,共24分） 1.已知cos ,(1,1),(,)2k k πααπ=∈-∈,则sin()πα+=( ) A. C. D.1k -
江苏省启东中学2019-2020学年度第二学期期中考试 高一英语试卷 第一部分：听力 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. ￡9.15. C. ￡9.18. 答案是B。 1. How is the weather this weekend according to the weatherman? A. Warm. B. Cool. C. Cold. 2. What is the correct order number for the yellow teapot? A. TP12FS. B. TP12SF. C. PT12FS. 3. What is Martin busy doing? A. Writing a book. B. Reading about Cuba. C. Looking for good news. 4. What is the relationship between the speakers? A. Father and daughter. B. Teacher and student. C. Classmates. 5. What are the speakers mainly talking about? A. The man’s toy. B. The man’s father. C. The man’s childhood. 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 1
江苏省启东中学2018-2019学年度第一学期第一次月考 高三年级英语试卷 第I卷（选择题共85分） 第一部分：听力(共两节, 满分20分) 第一节请听下面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 man do this afternoon? A. Go to the cinema. B. Go to a museum. C. Stay at home. 2. How does the man react to what the woman did? A. He is very angry. B. He asks for an apology. C. He doesn’t mind it. 3. What are the two speakers mainly talking about? A. A movie. B. Their plans. C. The Internet. 4. What helped the woman do well in the test? A. Taking notes carefully in class. B. Spending two weeks preparing for it. C. Borrowing notes from someone else. 5. Where does the conversation probably take place? A. At the train station. B. At a hotel. C. On a train. 第二节听下面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。每段对话或独白读两遍。 请听第6段材料，回答第6和第7题。 6. What languages is the man good at? A. French and Italian. B. English and French. C. English and German.
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 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 This manuscript was revised by the office on December 10, 2020.
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
江苏省启东中学2009届高三年段过关考试 英语试卷 本卷总分120分，考试时间120分钟。 第Ⅰ卷（105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。每段对话仅读一遍。 1．What will the man do this weekend? A．Stay at home．B．Go fishing．C．Go boating． 2．What does the man think of John? A．Hard working．B．Lazy．C．Active． 3．Who looked after the woman? A．The man．B．Mary．C．Herself． 4．What will the woman do? A．She will take the book home． B．She allows the man to take the book home． C．She will have to read the book in the office． 5．What about Tom and Jack? A．They had watched a football match． B．They had finished their homework． C．They are watching a football match． 第二节(共15小题；每小题1分，满分15分) 听下面5段对话或对白。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。每段对话或独白读两遍。 听第6段材料，回答第6至8题。 6．Where does the woman want to visit?
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 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