Unit 1 Great scientists
话题词汇
1．creative adj.富有创造力的
2．determination n．决心
3．humorous adj.幽默的
4．independent adj.独立的
5．profession n．职业
6．qualification n．资格；学历
7．be honored as被誉为……
8．be active in积极从事于
9．be admitted into a key university考上重点大学
10．think highly/well of对……高度评价
话题佳作
请你结合下面提供的信息，给某英语晚报写一篇新闻报道，简单介绍研究油菜花的父子农民科学家。
1．沈克泉、沈昌健是湖南一对普通的农民父子；
2．40年前，沈克泉立志培育出优质杂交油菜(hybrid rape)；
3．父子二人靠自学、肉眼观察、记录总结规律，经1 000多次实验后培育出优质品种；4．“油菜花父子”用实际行动证明农民也能变成科学家。
佳作欣赏
Shen Kequan and his son Shen Changjian who used to be two common farmers in Hunan Province have become famous.40 years ago Shen Kequan made up his mind to develop a kind of good hybrid rape.To reach his goal，the farmer and his son taught themselves agriculture knowledge，observed the rape with their eyes，kept records and drew conclusions all by themselves.Finally，they developed a kind of hybrid rape with rather good quality after more than 1,000 experiments.The father and his son’s achievement tells us that farmers can also become scientists.
名师点睛
文章结构如下：1.指出文章要介绍的人物及事件——农民父子培育出优质杂交油菜。2.围绕要点进行细节报道：(1)40年前立志要培育出优质油菜；(2)自学、观察、记录、总结；
(3)1 000多次实验后终于成功。3.总结性评价——农民也能成为科学家。文中使用了定语从句、不定式作目的状语、宾语从句等复杂句式和used to，make up one’s mind，teach themselves，draw conclusions等词汇，增强了文章的说明力。
A．写作必记单词
1．conclude vt.& vi.结束；推断出
(1)conclusion n．结论；结束
[填介词]
(2)He concluded his speech with a famous saying.
(3)What can we conclude from Stafford’s research?
(4)In conclusion，I would like to say how much I have enjoyed myself today. 2．attend vt.照顾；护理；出席；参加
(1)attend to倾听；处理；照顾；关心
(2)By now paramedics had arrived，and were attending to the injured woman.
现在急救人员已来，正在给受伤的妇女做护理。(2014·福建)
用法点拨
表示“护理某人”“侍候某人”“照顾某人”既可用attend sb.，也可用attend on sb.，还可用attend to sb.。
3．expose vt.暴露；揭露；使曝光
(1)Being exposed (expose) to the sunlight for too long will be harmful to your skin.
(2)Exposed(expose) to the rain and wind last night，he was ill.
(3)And the more birds are exposed to(暴露于) light，the more active they are at night.(2015·四川)
4．cure n．治愈；痊愈；vt.治愈；治疗
(1)cure sb.of...治好某人的病；改掉某人的(坏习惯等)
(2)Besides，empathy (同情) can be a cure for loneliness，sadness，anxiety，and fear.(填介词)
5．challenge n．挑战；vt.向……挑战
(1)challenging adj.挑战性的
(2)challenge sb.to do...向某人挑战做某事
(3)Surround yourself with uplifting individuals who challenge you to be(be) better while loving you for w ho you are.(2016·浙江)
(4)Twain’s mystery novel Pudd’nhead Wilson stood as a challenge to the racial beliefs of even many of the liberals of his day.(填介词)
6．absorb vt.吸收；吸引；使专心
(1)When deeply absorbed(absorb) in work，which he often was，he would forget all about eating or sleeping.
(2)After absorbing(absorb) enough water，the plants grow well.
(3)A weak ray of light came in through a small hole in the wall and he was absorbed in(专心致志于) his reading.(2015·福建)
7．suspect vt.认为；怀疑；n.被怀疑者；嫌疑犯
suspect sb.of...怀疑某人……
8．blame vt.责备；谴责；n.过失；责备
(1)blame sb.for...因……而指责某人
blame sth.on sb.把某事归咎于某人
(2)We went 10－1 and I was named the most valuable player，but I often had crazy dreams in which I was to blame for (为……受责备) Miller’s accident.(2016·全国Ⅲ)
用法点拨
(1)be to blame这一习语中的blame通常用主动形式表示被动意义。
(2)blame后通常不接that从句。
9．pollute vt.污染；弄脏
polluted adj.被污染的
pollution n．污染
10．announce vt.宣布；通告
(1)announcement n．宣布；通告
(2)He announced the good news to her.(填介词)
(3)I have an important announcement to make (make)．
用法点拨
announce后不接双宾语，即不能说announce sb.sth.，而说成announce sth.to sb.。11．instruct vt.命令；指示；教导
(1)instruction n．命令；指示；(pl.)说明书
(2)He instructed her to remain(remain) where she was.(同义句转换)
→He instructed that she (should) remain where she was.
12．contribute vt.& vi.捐献；贡献；捐助
(1)contribution n．贡献；捐助
(2)We’re not saying that everyone needs to contribute their lives to the poor.(填介词)(2016·四川)
(3)Such rude riding contributes to(导致；促使)the disorder of traffic.(2015·江苏)
B．阅读识记单词
13．characteristic n．特征；特性
14．scientific adj.科学的
scientist n．科学家
15．analyse vt.分析
analysis n．分析
16．defeat vt.打败；战胜；使受挫；n.失败
17．expert n．专家；行家；adj.熟练的；经验或知识丰富的
(1)be expert at/in擅长……
(2)He is an expert in/on/at skin disease.
他是治疗皮肤病的专家。
18．physician n．医生；内科医师
physical adj.身体的；肉体的
19．enquiry n．询问
enquire vt.询问
20．severe adj.严重的；剧烈的；严厉的
21．foresee vt.预见；预知
22．handle n．柄；把手；vt.处理；操纵
23．link vt.& n．连接；联系
link...to/with把……与……连接起来
24．certainty n．确信；确实
(1)with certainty确定无疑地
for certain有把握；肯定地
(2)It is certain that he’ll come tomorrow.(填代词) 25．responsible adj.有责任的；负责的
be responsible for为……负责；是……的原因
take responsibility for为……负责
26．construct vt.建设；修建
(1)construction n．建设；建筑物
(2)under construction在建设中
27．positive adj.积极的；肯定的；确实的
negative adj.消极的；否定的；负面的28．enthusiastic adj.热情的；热心的
(1)enthusiasm n．热情，热心
(2)be enthusiastic about对……热心
29．cautious adj.小心的；谨慎的
(1)caution n．谨慎
(2)with caution＝cautiously小心地；谨慎地30．reject vt.拒绝；不接受；抛弃
rejection n．拒绝
用法点拨
reject后接名词、代词作宾语，不接不定式。31．universe n．宇宙；世界
universal adj.宇宙的；全世界的；普遍的
42机械振动 一、选择题(每小题均有多个选项符合题目要求) 1．如图所示是某一质点做简谐运动的图象，下列说法正确的是( ) A．在第1 s内，质点速度逐渐增大 B．在第1 s内，质点加速度逐渐增大 C．在第1 s内，质点的回复力逐渐增大 D．在第4 s内质点的动能逐渐增大 E．在第4 s内质点的机械能逐渐增大 2．铺设铁轨时，每两根钢轨接缝处都必须留有一定的间隙，匀速运行的列车经过轨端接缝处时，车轮就会受到一次冲击．由于每一根钢轨长度相等．所以这个冲击力是周期性的，列车受到周期性的冲击做受迫振动．普通钢轨长为12.6 m，列车固有振动周期为0.315 s．下列说法正确的是( ) A．列车的危险速率为20 m/s B．列车的危险速率为40 m/s C．列车过桥需要减速，是为了防止发生共振现象 D．列车运行的振动频率和列车的固有频率总是相等的 E．增加钢轨的长度有利于列车高速运行 3．一质点做简谐运动的图象如图所示，下列说法正确的是( ) A．质点振动的频率是4 Hz B．在10 s内质点经过的路程是20 cm C．第4 s末质点的速度最大 D．在t＝1 s和t＝3 s两时刻，质点的位移大小相等、方向相同 E．在t＝2 s和t＝6 s两时刻，质点的速度相同 4．甲、乙两弹簧振子的振动图象如图所示，则可知( ) A．两弹簧振子完全相同 B．两弹簧振子所受的回复力最大值之比F甲F乙＝2：1 C．振子甲的速度为零时，振子乙的速度最大 D．两振子的振动频率之比f甲f乙＝1：2 E．振子乙的速度为最大时，振子甲的速度不一定为零 二、非选择题 5．有两个同学利用假期分别去参观北大和南大的物理实验室，各自在那里利用先进的DIS系统较准确地探究了“单摆的周期T与摆长l的关系”，他们通过校园网交换实验数据，并由计算机绘制了T2－l图象，如图甲所示．去北大的同学所测实验结果对应的图线是
高三年级课本复习Book3Unit1 课上检测卷 一、单词(每题3分；共30分) 1.(v.) 道歉(n.) 道歉 2.(n.) 信任;信仰→(v.) 相信;信任 3.(n.) 许可;允许→(v.)允许;许可 4.(adj.) 宗教的;信奉宗教的→(n.)宗教 5.(n.)农业;农学(ddj.)农业的 6.(n.)独立;自主→(adj.) 独立地;存主见的 7.(adj.) 明显的;显而易见的→(adv.) 明显地;显然 8.(adj.)充满活力的;精力充沛→(n.) 能量;精力;能源 9.(vt.) 赞美;钦佩;羡慕(n.)钦佩;羡慕→(adj.)令人钦佩的 10.(n.)起源;由来(adj.) 原始的;最初的;原创的(adv.)最初;起初;本来 二、短语(每题3分; 共30分) 1.发生 2.纪念；追念 3.盛装;打扮;装饰 4.期望;期待 5.好像 6.出现;到场 7.守信用;履行诺言8. 屏息;屏气 9.出发;动身;使爆炸10.使…想起… 三、单句语法填空(每题4分;共20分) 1.Although he didn't play well at first,he entertained a firm (believe)in final victory. 2.You need (permit) from the World Wide Web before you can access information. 3.She speaks English so well that her friends are filled with (admire). 4. (remind) not to miss the flight at 15:20,the manager set out for the airport in a hurry. 5. ---I often fall asleep at work. ---Why not drink some tea? Tea can keep you (energy). 四、短语填空(每题4分;共20分) 1.Once you have promised to do something,you should (守信用). 2.The government set up a monument (为了纪念)the heroes who died in the war. 3.Don't panic! Do you know how many times you need (被提醒)this? 4.The holiday we have been (期待)came at last. 5.You must (向...道歉)your teacher for being so rude.
必修一Unit 1Friendship Ⅰ.常考单词必背 1．upset adj.心烦意乱的；不安的；不适的vt.(upset，upset) 使不安；使心烦；打翻，碰倒；打乱 She was upset about losing her job. 她正为失去工作而心烦意乱。 Losing the ring upset her very much. 遗失戒指使她很心烦意乱。 [快速闪记] be upset about/over/at sth 为某事心烦 upset oneself about sth 为某事而烦恼 2．ignore vt.不理睬；忽视 Either she didn't see me wave or she ignored me on purpose.要么她没看见我招手，要么就是故意不理我。 [快速闪记] ignorant adj.不了解的，无知的 ignorance n．不了解，无知 3．concern vt.(使)担忧；涉及；关系到n．担心；关注；(利害)关系 The accident was concerned with the bus driver. 这次事故与公交车司机有关。 There is some cause for concern but no need for alarm. 是有点令人忧虑，但不必惊慌。 [快速闪记] concerned adj.担心的；关注的 be concerned about/for关心；担忧；挂念
be concerned with牵涉到……，与……有关 as/so far as...be concerned关于；至于；就……而言 4．power n．能力；力量；权力 The power was cut off and the street was entirely in darkness.断电后街道完全陷入了黑暗。 She was the one who had the power to hire or fire people.有权雇用或解雇人的是她。[快速闪记] (1)come to power上台，当权，表示动作，不能和一段时间连用。 (2)be in power当权，执政，表示状态，可以和一段时间连用。 (3)have the power to do sth 具有做某事的能力、权力 beyond/out of one's power某人力所不能及 5．settle vi.安家；定居；停留vt.使定居；安排；解决 They calmed down and settled their problem soon. 他们镇静下来并很快把问题解决了。 Mr.Wang settled down in America soon after he got there.王先生到美国后不久就定居下来了。 [快速闪记] (1)settle down舒适地坐下；安静下来；定居下来 settle down to sth/doing sth开始认真对待某事；定下心来做某事 (2)settlement n．解决；协议 6．suffer vt.& vi.遭受；忍受；经历 We'll suffer hunger one day if we don't care about the farmland.如果我们不关注农田，将来我们会挨饿的。 [快速闪记] suffering n．痛苦；苦难sufferer n．患病者；受难者 7．pack vi.& vt.捆扎；包装；打行李n．小包；包裹 As soon as I graduated，I packed my bags and moved to the west of China.一毕业我就收拾行李去了中国西部。 A pack of reporters were waiting outside for the latest news.一群记者在外面等待最
2018年高考物理全真模拟试题（十） 满分110分，时间60分钟 第Ⅰ卷(选择题共48分) 选择题：本题共8小题，每小题6分．在每小题给出的四个选项中，第1～4题只有一项符合题目要求，第5～8题有多项符合题目要求．全部选对的得6分，选对但不全的得3分，有选错的得0分． 1．下列说法正确的是() A．自然界的电荷只有两种，库仑把它们命名为正电荷和负电荷 B．欧姆发现了电流的热效应 C．楞次根据通电螺线管的磁场和条形磁铁的磁场的相似性，提出了分子电流假说D．电流的单位“安培”是国际单位制中的基本单位 2．如图所示，静止在水平地面上倾角为θ的光滑斜面体上，有一斜劈A，A的上表面水平且放有一斜劈B，B的上表面上有一物块C，A、B、C一起沿斜面匀加速下滑．已知A、B、C的质量均为m，重力加速度为g.下列说法正确的是() A．A、B间摩擦力为零 B．C可能只受两个力作用 C．A加速度大小为g cos θ D．斜面体受到地面的摩擦力为零 3．如图所示，真空中两个等量异种点电荷＋q(q＞0)和－q以相同角速度绕O点在纸面中沿逆时针方向匀速转动，O点离＋q较近，则() A．O点的磁感应强度方向始终垂直纸面向外 B．O点的磁感应强度方向始终垂直纸面向里 C．O点的磁感应强度方向随时间周期性变化 D．O点的磁感应强度大小随时间周期性变化 4．如图甲所示，以等腰直角三角形ABC为边界的有界匀强磁场垂直于纸面向里，一个等腰直角三角形线框abc的直角边ab的长是AB长的一半，线框abc在纸面内，线框的cb 边与磁场边界BC在同一直线上，现在让线框匀速地向右通过磁场区域，速度始终平行于BC边，则在线框穿过磁场的过程中，线框中产生的电流随时间变化的关系图象是(设电流沿顺时针方向为正)()
Unit 1 Art Ⅰ.阅读理解 A Here I will introduce some books to you. Cook Yourself Young By (author) Elizabeth Peyton-Jones Want to look and feel 10 years younger? Keen to remove bags under your eyes, and other unpleasant symptoms of ageing? Long to lose weight and stay slim? All you need is to change what you eat and to COOK YOURSELF YOUNG. In her revolutionary new book, Cook Yourself Young, a health expert Elizabeth Peyton-Jones explains how simply by changing the way you cook you can make yourself look younger and live a healthier, more balanced life. Celebrations and Special Days By (author) Ellen Lawrence In Celebrations and Special Days, young readers will join children around the world as they celebrate religious festivals and special family days, such as weddings and coming of age ceremonies. From Holi to Hanukkah, Easter to Ramadan, readers will join families as they prepare special meals, decorate their homes, and take part in the special times that shape our lives. The Story of the Lost Child By (author) Elena Ferrante “Nothing quite like this has ever been published before，” said The Guardian newspaper about the Neapolitan Novels in 2014, “Those Who Leave and Those Who Stay, the third book in the series, was an international bestseller and a New York Times Notable Book of the Year.” Its author was considered as one of the greatest novelists of our time by the New York Times Book Review. This fourth and final installment in the series raises the bar even higher and indeed confirms Elena Ferrante as one of the world's best living storytellers. 【解题导语】本文是说明文，介绍了三本书的相关信息。 1．Which book should you buy if you want to look young? A. Cook Yourself Young. B. Celebrations and Special Days. C. The Story of the Lost Child. D. New York Times Book Review. 答案与解析：A 考查细节理解。根据Cook Yourself Young部分最后一句中的“by changing the way you cook you can make yourself look younger”可知，Cook Yourself Young这本书介绍了如何通过健康的饮食来使人们保持年轻，故A项正确。 2．Who is Celebrations and Special Days intended for? A. Old people. B. All the people. C. Young people. D. Middle-aged people. 答案与解析：C 考查细节理解。根据Celebrations and Special Days部分第一句中的“In Celebrations and Special Days, young readers will join children around the world”可知，Celebrations and Special Days这本书的阅读对象是年轻人，故C项正确。 3．What can we learn about Elena Ferrante? A. She is the greatest novelist in the US. B. Her books sell best at the present time. C. She is the author of Celebrations and Special Days. D. She belongs to the best living storytellers. 答案与解析：D 考查推理判断。根据最后一段中的“and indeed confirms Elena
第一部分必修一Module 1 Ⅰ. 完形填空导学号58082016 I had worried myself sick over Simon's mother coming to see me. I was a new __1. C__，and I gave an honest account of the students' work. In Simon's case, tthe grades were awfully low. He couldn't read his own handwriting. __2. D__ he was a bright student. He discussed adult subjects with nearly adult comprehension. His work in no way reflected his __3. A__. So when Simon's mother entered the room, my palms(手掌心) were sweating. I was completely__4. D__for her kisses on both my cheeks. “I came to thank you，”she said, surprising me beyond speech. __5. B__me, Simon had become a different person. He talked of how he__6. B__me, he had begun to make friends, and for the first time in his twelve years, he had__7. D__spent an afternoon at a friend's house. She wanted to tell me how grateful she was for the__8. B__ I had nurtured(培养) in her son. She kissed me again and left. I sat, stunned (惊呆), for about half an hour, __9. D__ what had just happened. How did I make such a life－changing difference to that boy without __10. A__knowing it? What I finally came to __11. A__ several months before, when some students were 12. C reports in the front of the class, Jeanne spoke __13. B__，and to encourage her to raise her voice, I had said, “Speak up. Simon's the expert on this. He is the __14. D__ one you have to convince, and he can't hear you in the __15. C__ of the room. ” That was it. From that day on, Simon had sat up straighter, paid more attention, __16. A__ more, and became happy. And it was all because he __17. C__to be the last kid in the last row. The boy who most needed __18. A__ was the one who took the last seat that day. It taught me the most __19. D__ lesson over the years of my teaching career, and I'm thankful that it came __20. B__and positively. A small kindness can indeed make a difference.
阶段综合检测(四) (时间：100分钟满分：100分) 班级________姓名________得分________ 选择题部分(共65分) 第一部分：英语知识运用(共两节，满分35分) 第一节：单项填空(共15小题；每小题1分，满分15分) 从A、B、C、D四个选项中，选出可以填入空白处的最佳选项。 ()https://www.doczj.com/doc/6e1755937.html,k ________ by five pence per pound. A．is risen B．is raised C．has risen D．has lifted ()2.The output of machines in 2005 is ________ it was in 2002. A． 5 times what B．5 times that C．5 times as many D．5 times of ()3.It is reported that the employment situation in east China ________ in the last two months, with a rebound in monthly figures. A．has improved B．improved C．was improved D．was improving ()4.The computer was used in teaching. As a result, not only ________， but students became more interested in the lessons. A．saved was teachers' energy B．was teachers' energy saved C．teachers' energy was saved D．was saved teachers' energy ()5.—I'm sorry. I ________ at you the other day. —Forget it. I was a bit out of control myself. A．should't shout B．should't have shouted C．mustn't shout D．mustn't have shouted ()6.—Has the doctor ________ the weak child ________ his illness? —No, the doctor didn't ________ him. A．cured; for; treat B．cured; of; treat C．cured; for; cure D．cured; of; cure ()7.(2016·苏北四市联 考)New version of Paris climate agreement ________， the whole world has seen a promising future of lower planet-warming greenhouse gas emissions. A．releasing B．released C．has released D．has been released ()8.Don't forget you can get ________ when you're swimming. A．burning B．burnt C．being burnt D．to be burnt ()9.________ the technology developing, the games will become more and more ________. A．As; amazing B．Of; amazed C．With; amazing D．For; amazed
Unit 1 Friendship Ⅰ.写作单词——会拼写 1．upset adj. 心烦意乱的；不安的；不适的 vt. 使不安；使心烦 2．ignore vt. 不理睬；忽视 3．calm vt.&vi. (使)平静；(使)镇定 adj. 平静的；镇静的；沉着的4．grateful adj. 感激的；表示谢意的5．loose adj. 松的；松开的 6．teenager n. 十几岁的青少年 7．power n. 能力；力量；权力 →powerful adj. 强大的；有力的 →powerless adj. 无力的 8．suffer vt.&vi. 遭受；忍受；经历 →suffering n. 折磨；苦难 9．recover vi.&vt. 痊愈；恢复；重新获得 →recovery n. 恢复；康复 10．entire adj. 整个的；完全的；全部的 →entirely adv. 完全地；全然地；整个地11．dust n. 灰尘 →dusty adj. 积满灰尘的 12．settle vt. 使定居；安排；解决 →settler n. 移居者；定居者 →settlement n. 解决；处理 13．concern vt. (使)担忧；涉及；关系到 n. 担心；关注；(利害)关系 →concerned adj. 担心的；忧虑的 →concerning prep. 关于；涉及 14．exact adj. 准确的；精密的；精确的
→exactly adv. 确实如此；正是；确切地15．agree vi. 同意 →agreement n. 协议；同意；一致 →disagree vi. 不同意 16．like vt. 喜欢 prep. 像；如同 →dislike n．&vt. 不喜欢；厌恶17．outdoor adj. 户外的；室外的 →outdoors adv. 在户外；在野外 n. 野外；郊外 →indoors adv. 在室内；进入户内 Ⅱ.阅读单词——要识记 18．curtain n．窗帘；门帘；幕布19．series n. 连续；系列 20．thunder vi. 打雷；雷鸣 n. 雷；雷声 21．tip n. 提示；技巧；尖；尖端；小费vt. 倾斜；翻倒 22．partner n. 伙伴；合作者；合伙人23．highway n. 公路；大路 24．item n. 项目；条款 25．swap vt.交换 高频短语——会默写 1．add up 合计 2．calm(...)down (使)平静下来；(使)镇定下来3．be concerned about 关心；挂念 4．go through 经历；经受；完成；仔细检查5．set down 记下；放下；登记 6．a series of 一连串的；一系列；一套7．on purpose 故意地；有目的地 8．at dusk 在黄昏时刻 9．face to face 面对面地
课时作业 (本栏目内容，在学生用书中以独立形式分册装订！) 一、选择题(1～6题为单项选择题，7～10题为多项选择题) 1. (2017·陕西安康二调)如图所示，对于电场线中的A、B、C三点，下列判断正确的是() A．A点的电势最低 B．B点的电场强度最大 C．同一正电荷在A、B两点受的电场力大小相等 D．同一负电荷在C点具有的电势能比在A点的大 解析：根据电场线的特点，沿着电场线方向电势逐渐降低，则φA>φC>φB，又知同一负电荷在电势越低处电势能越大，则同一负电荷在C点具有的电势能比在A点的大，所以A错误，D正确；因在同一电场中电场线越密，电场强度越大，则知A点电场强度最大，所以B错误；因电场中E A>E B，则同一正电荷在A、B 两点所受电场力关系为F A>F B，所以C错误。 答案： D 2. 如图，水平天花板下用长度相同的绝缘细线悬挂起来的两个相同的带电小球A、B，左边放一带正电的固定球P时，两悬线都保持竖直方向。下面说法正确的是() A．A球带正电，B球带负电，并且A球带电荷量较P球带电荷量大 B．A球带正电，B球带负电，并且A球带电荷量较P球带电荷量小 C．A球带负电，B球带正电，并且A球带电荷量较P球带电荷量小 D．A球带负电，B球带正电，并且A球带电荷量较P球带电荷量大 解析：A、B悬线都处于竖直方向，表明沿水平方向均处于平衡状态，由此可判断A球带负电，B球带正电，结合库仑定律知，A球带电荷量较P球带电荷量小。故选C。 答案： C 3.
将两个质量均为m 的小球a 、b 用绝缘细线相连，竖直悬挂于O 点，其中球a 带正电、电荷量为q ，球b 不带电，现加一电场强度方向平行竖直平面的匀强电场(没画出)，使整个装置处于平衡状态，且绷紧的绝缘细线Oa 与竖直方向的夹角为θ＝30°，如图所示，则所加匀强电场的电场强度大小可能为( ) A.mg 4q B ．mg q C.mg 2q D ． 3mg 4q 解析： 取小球a 、b 整体作为研究对象，则受重力2mg 、悬线拉力F T 和电场力F 作用处于平衡，此三力满足如图所示的三角形关系，由图知F 的最小值为2mg sin 30°＝mg ，由F ＝qE 知A 、C 、D 错，B 对。 答案： B 4．如图所示，一个绝缘圆环，当它的1 4均匀带电且电荷量为＋q 时，圆心O 处的电场强度大小为E ，现 使半圆ABC 均匀带电＋2q ，而另一半圆ADC 均匀带电－2q ，则圆心O 处的电场强度的大小和方向为( ) A ．22E ，方向由O 指向D B ．4E ，方向由O 指向D C ．22E ，方向由O 指向B D ．0 解析： 由题意可知，若14圆AB 带电荷量为q ，AB 在圆心处场强为E ，方向由O 指向CD 中点，若1 4圆 CD 带电荷量为－q ，CD 在圆心处的场强也是E ，且方向与14圆AB 在圆心处场强相同；同理，1 4圆BC 、AD 在圆心处的场强也是E ，方向由O 指向AD 中点。合成各场强可得，圆心O 处的场强大小为22E ，方向由O 指向D 。因此A 正确。 答案： A 5．(2017·内蒙古包头测评)如图甲所示，在某一电场中有一条直电场线，在电场线上取A 、B 两点，将一个电子由A 点以某一初速度释放，它能沿直线运动到B 点，且到达B 点时速度恰为零，电子运动的v -t 图象如图乙所示。则下列判断正确的是( )
2018届高三英语一轮复习计划书
肥东锦弘中学2018届高三英语一轮复习方案 一、主要任务： 认真研读考试大纲，将考试大纲的要求同课本结合起来，以“纲”为据，注重知识的横向联系，避免单一性，做到以点带面，点面结合，有效地突破重点、难点，由浅入深，循序渐进，把原来分散在各单元中的知识点加以梳理、归纳，构筑完整的英语知识体系。 1、复习模块1-8，共24个单元的词和句子； 2、掌握基本的语法规则可以自然表达自己的意思。 3、改编教材中的课文，供学生背诵。 二、目标达成：夯实基础，梳理知识，查漏补缺，系统归纳与提高。 1、模块复习目标：①能够将课标词汇音、形（含各种变形）、意烂熟于心，掌握其重要用法，并能在不同语境中灵活运用；②能够掌握教材中的重点句型，并能正确、灵活运用；③能够辨析易混词、短语、句型并且正确使用。 2、语法复习目标：①掌握各项语法的基本概念及用法；②熟练掌握并能够在不同语境中灵活运用各项语法功能。 3、能力目标：①重视基础知识的正确、灵活运用；②重视并坚持听力、阅读、写作训练。 三、复习进度： 原则上每大周复习两个单元的重点词汇和句型；每大周复习一项语法（重点班及以上班级任务）。考纲3500词汇书复习同步进行。具体如下：周计划：周一：复习上周知识+习题讲解+ 词汇验收。 周二：复习早读任务+单元重点知识点拨+习题讲评+词汇验收。 周三：复习周二知识+单元重点知识点拨+习题讲评+词汇验收。 周四：复习周三知识+语法+词汇验收。 周五：复习周四知识+单元重点知识点拨+习题讲评+词汇验收。 周六：复习周五知识+单元重点知识点拨+习题讲评+词汇验收。 注：各系列班级结合各自情况做微调。 四、每大周作业安排： 1.每单元老师听写两次，英语测试报一张，教师全批改。 2.单元测试卷每单元一次，教师做好检查。
2018（江苏）高考英语一轮复习教案：1.2（b）经典句型 江苏高考英语一轮复习教案：1.2（b）经典句型 ●模块一Unit 2 一、高考能力提升练习 【一】阅读理解 I shall never forget the day when the earthquake took place.The time was about 5 o’clock in the afternoon and I was driving along the road to take my daughter from school.Our plan was to go swimming together.I had finished my work at 4 o’clock and then gone to the Post Office.Then I stopped off at a shop in order to get some fresh fruit.We liked to have some fruit to eat after our swim. I was driving along a high road on my way to my daughter’s school.Over my road was another road which was built like a bridge for cars coming to the other way.I was hungry so I put the bag of apples in the seat beside me and started to eat one. Suddenly I saw the cars in front of me start to move from side to side.Then my car started to shake！I didn’t know what was happening.Perhaps something had gone wrong with my car.I drove a little more slowly and then I stopped the car and at the same moment the road fell onto the car in front of me. I found myself in the dark.I couldn’t move.The bottom parts of both of my legs and my feet were hurting badly and I couldn’t move them.All around me was quiet.But above me I could hear shouts and a lot of noise.Then I memorized (记起) what had happened.I had been in an earthquake. For about two hours nobody came.Luckily I could reach the bag of apples，so at least I had plenty to eat.Then I heard people climbing towards me.A team of people had come to see if anyone was under the broken road.I called out，“I’m here！” I heard a shout.Soon a stranger climbed to the side of the road near my car.“How are you doing？” he asked.
功和功率 一、选择题(1～6题为单项选择题，7～11题为多项选择题) 1．如图1所示，甲、乙两物体之间存在相互作用的滑动摩擦力，甲对乙的滑动摩擦力对乙做了负功，则乙对甲的滑动摩擦力对甲( ) 图1 A．可能做正功，也可能做负功，也可能不做功 B．可能做正功，也可能做负功，但不可能不做功 C．可能做正功，也可能不做功，但不可能做负功 D．可能做负功，也可能不做功，但不可能做正功 2．同一恒力按同样的方式施于物体上，使它分别沿着粗糙水平地面和光滑水平地面移动相同一段距离时，恒力做的功和平均功率分别为W1、P1和W2、P2，则二者的关系是( ) A．W1＞W2、P1＞P2B．W1＝W2、P1＜P2 C．W1＝W2、P1＞P2D．W1＜W2、P1＜P2 3．(2017·安徽期中测试)A、B两物体的质量之比m A∶m B＝2∶1，它们以相同的初速度v0在水平面上做匀减速直线运动，直到停止，其速度—时间图象如图2所示。那么，A、B 两物体所受摩擦力之比F A∶F B与A、B两物体克服摩擦阻力做功之比W A∶W B分别为( ) 图2 A．2∶1，4∶1 B．4∶1，2∶1C．1∶4，1∶2 D．1∶2，1∶4 4．(2016·济南模拟)汽车从静止匀加速启动，最后做匀速运动，其速度随时间及加速度、牵引力和功率随速度变化的图象如图所示，其中错误的是( )
5．(2016·福建厦门质检)汽车以恒定的功率在平直公路上行驶，所受到的摩擦阻力恒等于车重的0.1，汽车能达到的最大速度为v m 。则当汽车速度为1 2v m 时，汽车的加速度为(重 力加速度为g )( ) A ．0.1g B ．0.2g C ．0.3g D ．0.4g 6．如图3所示，半径为R 的1 8光滑圆弧轨道左端有一质量为m 的小球，在大小恒为F 、 方向始终与轨道相切的外力作用下，小球在竖直平面内由静止开始运动，轨道左端切线水平，当小球运动到轨道的末端时立即撤去外力，此时小球的速率为v ，已知重力加速度为 g ，则( ) A ．此过程外力做功为π 2FR B ．此过程外力做功为 22 FR C ．小球离开轨道的末端时，拉力的功率为Fv D ．小球离开轨道末端时，拉力的功率为 22 Fv 7．质量为m 的物体置于倾角为α的斜面上，物体和斜面间的动摩擦因数为μ，在外力作用下斜面以加速度a 向左做匀加速直线运动，如图4所示，运动过程中物体与斜面之间保持相对静止，则下列说法正确的是( )
肥东锦弘中学2018届高三英语一轮复习方案 一、主要任务： 认真研读考试大纲，将考试大纲的要求同课本结合起来，以“纲”为据，注重知识的横向联系，避免单一性，做到以点带面，点面结合，有效地突破重点、难点，由浅入深，循序渐进，把原来分散在各单元中的知识点加以梳理、归纳，构筑完整的英语知识体系。 1、复习模块1-8，共24个单元的词和句子； 2、掌握基本的语法规则可以自然表达自己的意思。 3、改编教材中的课文，供学生背诵。 二、目标达成：夯实基础，梳理知识，查漏补缺，系统归纳与提高。 1、模块复习目标：①能够将课标词汇音、形（含各种变形）、意烂熟于心，掌握其重要用法，并能在不同语境中灵活运用；②能够掌握教材中的重点句型，并能正确、灵活运用；③能够辨析易混词、短语、句型并且正确使用。 2、语法复习目标：①掌握各项语法的基本概念及用法；②熟练掌握并能够在不同语境中灵活运用各项语法功能。 3、能力目标：①重视基础知识的正确、灵活运用；②重视并坚持听力、阅读、写作训练。 三、复习进度： 原则上每大周复习两个单元的重点词汇和句型；每大周复习一项语法（重点班及以上班级任务）。考纲3500词汇书复习同步进行。具体如下：周计划：周一：复习上周知识+习题讲解+ 词汇验收。 周二：复习早读任务+单元重点知识点拨+习题讲评+词汇验收。 周三：复习周二知识+单元重点知识点拨+习题讲评+词汇验收。 周四：复习周三知识+语法+词汇验收。 周五：复习周四知识+单元重点知识点拨+习题讲评+词汇验收。 周六：复习周五知识+单元重点知识点拨+习题讲评+词汇验收。 四、每大周作业安排： 1.每单元老师听写两次，英语测试报一张，教师全批改。 2.单元测试卷每单元一次，教师做好检查。
Ⅰ.阅读理解 (2016·中原名校联盟仿真模拟) A Guide to the Library's Facilities To use or reserve the facilities of the library，follow the procedures given at the circulation desk. Group Study Rooms (2F) Students and teaching staff can use these rooms for group study. Students are advised to use unlocked rooms (3 rooms for 2 people,2 rooms for 4 people) available for free. When you use locked rooms (2 rooms for 4 people,1 room for 10 people)，you need to go through reservation procedures at the circulation desk. These rooms are available for group discussion. Individual Reading Rooms (1～3F) There are 4 single rooms available for use by teaching staff and visiting scholars. Each room is equipped with a computer together 1 printer and 6 scanners. Reservation of these rooms is available for a period up to seven days on end. Meeting Rooms and Seminar Rooms (1～3F) Only teaching staff and graduate students can apply to use these rooms and reserve them one day in advance. The total number of seats is 40. They are available for workshops and small seminars. Computer Rooms (4F) These rooms are available for classes or seminars and so on. The total number of seats is 88. Only teaching staff can apply to use the computer rooms and reserve them one day in advance. 语篇导读本文是一份图书馆设施的使用指南。 1．How many locked rooms can students and teaching staff use A．One. B．Three. C．Four. D．Ten. 解析：B细节理解题。根据Group Study Rooms (2F) 栏的“…When you use locked rooms (2 rooms for 4 people,1 room for 10 people)”可知，共有3间锁门的房间可供师生使用，两间是可容纳4人的，一间是容纳10人的。 2．If teachers want to print，they can go to ________. A．a seminar room B．a computer room C．a group study room D．an individual reading room 解析：D细节理解题。由第三段Individual Reading Rooms (1～3F)中的“Each room is equipped with a computer together 1 printer and 6 scanners”可知，在个人阅览室中可以打印，故