限时训练(四)
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课后限时训练(四) 辛亥革命及伟大的抗日战争(建议用时:40分钟)一、选择题1.(2021 ·杭州第二中学模拟)武昌起义中起促进作用的先进团体是() A.同盟会B.兴中会C.光复会D.文学社和共进会D[直接领导武昌起义的是文学社和共进会。
]2.某年出版的日本报纸,关于中国事件的报道,使用了以下小标题:“点燃革命之火〞“武汉的形势〞“排满兴汉宣言〞“列国的态度〞等。
这些文章集中报道的可能是()A.太平天国运动B.八国联军侵华C.中日甲午战争D.辛亥革命D[此题考察学生理解分析的能力。
由题干中的“革命〞“武汉的形势〞“排满兴汉宣言〞很容易得出答案是辛亥革命,D项符合题意。
] 3.有人认为?中华民国临时约法?是为袁世凯量身定做的,这主要是因为?中华民国临时约法?规定实行()A.三权分立B.总统制C.主权在民D.责任内阁制D[临时大总统及国务员行使行政权,国务员“辅佐临时大总统,负其责任〞,即实行责任内阁制,应选D项。
]4.以下图是中国不同历史时代的两面国旗,其变化反映出的政治开展趋势是()图1大清的龙旗图2民国五色旗A.从贵族制到民主制B.从君主专制到民主共和C.从君主立宪制到民主共和D.从分封制到郡县制B[大清的龙旗代表的是君主专制,民国的五色旗代表的是民主共和,其开展趋势就是从君主专制到民主共和,应选B项。
]5.(2021 ·嘉兴期末检测)1905年,有一群中国人喊出了如下宣言:“中国者,中国人之中国;中国之政治,中国人任之。
驱除鞑虏之后,光复我民族的国家。
〞对这一宣言的解读,不正确的选项是()A.宣言出自?中华民国临时约法?B.应该是同盟会的政治纲领C.表达了民族独立的愿望D.利于推动民主革命进程A[?临时约法?公布于1912年,与材料时间不符,故A项符合题意;材料“驱除鞑虏之后,光复我民族的国家〞反映的是同盟会政治纲领“驱逐鞑虏,恢复中华〞,表达了争取实现民族独立自主,故B、C两项正确,不符合题意;同盟会政治纲领推动了民主革命进程,故D项正确,不符合题意。
限时训练4参考答案(2014-12-23)
31.(11分)
答案:(1)高压(1分)低压(1分)
(2)西北(偏北) (1分)②(1分)②地等压线密集,水平气压梯度力较大(2分)
(3)低温晴朗(1分)冷锋过境后,④地受高压脊控制。
(2分)
(4)受冷锋活动影响,将经历一次大风、降雨(雪)、降温等天气。
(2分)
32.(14分)
(1)A(1分)海陆热力性质差异(1分) D (1分)
(2)冬季风(西北风)(1分)亚洲高压(蒙古、西伯利亚高压)(1分)(3)西南季风(1分)东南信风(1分)
夏季由于阳光直射点北移,气压带和风带北移,南半球的东南季风越过赤道,受地转偏向力的影响偏转为西南季风。
(2分)
(4)C(2分)
(5)阿留申低压(1分)中纬西风气流(1分)温和多雨(1分)。
高考生物限时训练(4)1. 细胞是生物体结构和功能的基本单位,一切生命活动都必须依赖于细胞才能完成。
下列关于细胞的说法正确的是()A.构成细胞膜的所有磷脂和蛋白质分子都是可以运动的,这与细胞膜的结构特点有密切关系B.胞间连丝和核孔都有物质运输与信息交流的功能C.线粒体和叶绿体都有两层膜,都能合成ATP用于各项生命活动D.人体衰老的表皮细胞的细胞核体积减小,核膜内折,染色质收缩,染色加深2. 下列关于生物调查和实验操作的说法,正确的是()A.实验材料的选择很重要,葡萄可作为还原糖鉴定的实验材料B.在“脂肪的鉴定”和“低温诱导染色体数目加倍”这两个实验中都需要用50%的酒精清洗C.调查人类遗传病最好选择红绿色盲、白化病、原发性高血压等发病率较高的单基因遗传病D.酵母菌逐个计数是非常困难的,因此宜选择取样器取样法估算其种群密度3. 可遗传变异是生物的遗传物质发生改变而导致的变异,但是科学家却发现一些特别的变异:虽然DNA的序列没有改变,但是变异却可以遗传给后代,把这种现象称为表观遗传。
下列关于基因和性状的关系说法错误的是()A.基因可以通过控制蛋白质的结构直接控制生物体的性状,也可以通过控制酶的合成来控制代谢过程进而控制生物体的性状B.基因与基因,基因与基因产物,基因和环境之间相互作用,共同调控生物的性状C.表观遗传中,核内遗传物质在亲子代之间传递不再遵循孟德尔遗传规律D.表观遗传的一种解释:基因在转录和翻译过程中发生了一些稳定性的改变4. 2019年12月开始爆发的新冠肺炎(COVID-19)是由一种新型冠状病毒引起的,该病毒为单股正链RNA病毒,用(+)RNA表示,下图表示冠状病毒的增殖和表达过程。
冠状病毒的S蛋白是入侵细胞的关键,其能与肺部等细胞表面的受体血管紧张转化素Ⅱ(ACE2)结合,让病毒与细胞相连。
同时,在一些蛋白酶的作用下,S蛋白的特定位点会被切开,促进病毒包膜与细胞膜的融合,从而让病毒进入细胞。
江苏对口单招语文40分钟限时训练4(附答案)1.下列词语中加点的字,读音全都正确的一组是A.谛(dì)听横(hénɡ)祸丢三落(là)四B.沮(jǔ)丧窥(kuī)视宁(nìnɡ)缺毋滥C.褒(bǎo)贬透辟(pì) 卓(zhuó)尔不群D.当(dànɡ)真牵掣(chè) 屡见不鲜(xiǎn)2.下列没有错别字的一项是A.星罗棋布不记其数再接再厉黯然失色B.按部就班暴殄天物病入膏肓洞若观火C.不毛之地出奇致胜分道扬镳各行其是D.骨鲠在喉汗流夹背怙恶不悛既往不咎3.下列选项中,对加点字词解释全部正确的一项是A.相形见绌.(羞愧)峨冠博带(高)横征暴敛.(搜刮)神乎其.妙(那样)B.举一反.三(反复)趋.之若鹜(快走)不可逆.转(方向相反)长治.久安(太平)C.有史可稽.(考核)物力维.艰(维持)天理昭彰..(尽情开..(明显)游目骋怀放胸怀)D.别.开生面(另外)一蹴.而就(踏)明日..黄花(指重阳节后)销.声匿迹(消失)4.依次填入下列句子横线处的关联词,最恰当的一项是笛卡尔的学习热情很高,成绩优秀,数学尤其出类拔萃。
学校中的功课外,他阅读了许多课外书籍。
,在总结学习成绩时,他毫不自满,、犹豫了,怀疑自己学得的东西是否可靠。
A.除了还可是甚至以至B.除了也并且虽然但是C.不仅还并且即使还是D.不仅也可是而且并且5.下列各句中,没有语病的一句是A.只有积极引导牧民开展多种经营,控制牲畜数量,减少对牧草的需求,退牧还草,才能从根本上拯救纯种野牦牛。
B.墨西哥国立自治大学日前举行甲型H1N1流感病毒专题研讨会,有专家认为墨西哥即将进入炎热的夏季,这或许有助于降低流感病毒的扩散。
C.在本月热播的几部以南京大屠杀为题材的影片中,还原出许多历史细节,让我们深切地感受到电影主创者直面人间惨剧的勇气。
D.林萍是一位普通的保险公司职员,她为非亲非故的女孩捐献肝脏的事迹感动了广大网友自发在网上留言,大家热情地称其为“宁波的骄傲”。
球的纪录却被德扬终结。
逢韩球队不胜:固然力压首尔登顶,可是本赛季亚冠恒大和韩国球队交锋四次,小组赛两平全北现代,决赛两回合和首尔FC 的竞赛也都打成平手,未能在对阵韩国球队时获得一场成功,也是恒大登顶中的遗憾。
五、模仿示例,以“我想像有一天”为开头,续写两句话,要求内容连接,感情一致。
(5分)11月 9日,汪峰 2013年上海演唱会正式开唱。
在演唱会进行到快末端时,全场观众迎来了开场后的最大欣喜。
往日里少言寡语的汪峰在献唱《我这样爱你》时,一失常态瞬时变身深情王子,向章子怡进行了连续八分钟的示爱:我想像有一天这个社会不会把你我以前生活的迷茫和崎岖看作是放纵和污垢;我想像有一天媒体和新闻工作者们把你我也能够看作人对待,不要把我们看作乱物和工具,不要用歹意对待真情;我想像有一天我想像有一天高二语文限时训练四参照答案一、基础知识答案:1、C2、C3、D4、选 A。
A 项,两个破折号间的文字起解说说明作用; B 项,顿号改成逗号; C 项,把括号移至逗4号前; D项,把第一个“村”字后的句号去掉。
5、选B。
A 始作俑者:俑,古代殉葬用的木制或陶制的俑人,开始制作的俑人。
比喻第一做某件坏事的人。
含贬义 B 项:海晏河清:黄河水清了,海洋没有浪了。
用来形容天下升平。
正确。
C豆蔻年光指女子十三四岁时。
成语自己有特指意义,不可以用于指儿子。
D 姑妄语之的意思是临时随意谈谈,不必定有什么道理,多做自谦之词。
6、选 C 。
A“成为全世界最大的汽车市场”的主语不是“中国的汽车销售量”。
B 无主语,且“农产品、粮食、棉花”观点种属关系杂乱。
D“居民”和“不仅”调动地点,由于关系词“不仅”位置不妥。
7、 B二、 8、 D(对偶)9、D(借秋之凄凉,表达战乱中兄弟分别前程未卜的忧愁)10、 D(“浓墨重彩、层层衬着”不妥)三、略四、恒鼎力压住韩球队首夺亚冠五、仿写答案:(内容连接,感情诚挚即可)汪峰告白章子怡全文以下:现在我有一些话想对全部人,想对你说:我想像有一天这个社会不会把你我以前生活的迷茫和崎岖看作是放纵和污垢;我想像有一天媒体和新闻工作者们把你我也能够看作人对待,不要把我们看作乱物和工具,不要用歹意对待真情;我想像有一天你我的亲人和朋友不会由于我们诚挚的爱而反而遭到摧残和辱没;我想像有一天你我的好心和感情不再见被看作鄙陋的苟且而蒙羞;我想像有一天你我以及全部成为民大家物的爱能够不被谴责诬蔑,能获得大家真挚的祝愿;我想像有一天我们相互告诉对方我爱你的时候不是眼含悲伤的泪水;我想像有一天我能够象全部正常人那样拉着你的手走在街上,购物,漫步,洗浴着阳光;我想像有一天我们走在阳光下的时候不要再戴着墨镜,口罩,人们不是只会举起手机摄影,谈论,还能够对我们报以好心的浅笑;我想像有一天清晨醒来你我看到的头版头条不再是我们闪避着与我们生命没关的那些窥伺者的信息,而是爱与宽容;我想像有一天人们懂得我爱的你不不过漂亮刺眼的明星,也知道你身上有那么多常人难以忍耐的伤病;假如说这世界有些人和事需要我们的关注和帮助,那绝不是我们的名誉与财产,而是我们为这个世界做了什么以及全部一无全部的人们的命运;有时更深夜静的时候回顾走过的这些光阴,我想像有一天当死亡终归会到临的时候,在你我5心底留下的不是全部的这些名利与浮华,而是我们为相互赐予的爱与感情,还有那些能够留在记忆中的那些感人的瞬时;我想像有一天我能够抱着你,不再感觉到你为了抵抗全部这些肮脏与不公而发散的坚毅和委屈,我想看到你由于幸福和快乐而发出的豁然的欢笑;我想像有一天你我都已年迈,我们互相搀扶着走在每一条向前的路上,我们都会告诉身旁的朋友, Ta 的爱给了我全部!亲爱的,你辛苦了!我没有想到过一份简单的爱会给你带来这么多负重!感谢你给我的全部关心和理解,特别是那些孤立无助的时辰你暖和的陪同,它让我一直强盛坚定!我要让你成为世界上最幸福的女人,不是由于这一世累积的名誉,地位与财产,而不过由于我静静长久的爱!今天,说出这些话语是那么困难却又那么快乐,这都是我这么长时间以来埋在心底的话语!这全部不过由于下边我要唱给你听的这首歌的名字:我这样爱你!6。
金陵中学河西分校八(上)英语限时训练(四)一、选择填空(每小题1分,共15分)1. — What did you and your friends buy in the shop this afternoon?— ________. ________ of us had money for anything.A. Nothing; NoneB. None; No oneC. Nothing; NobodyD. None; Nothing2. — Listen! What's the noise outside?— It________ be some children playing football. But I'm not quite sure.A. mayB. mustC. shouldD. would3. — Could you please ________ here? There are many kids playing here.— Sorry, I didn't know that.A. to smokeB. not to smokeC. smokeD. not smoke4. My parents agreed ________ me ________ at home alone when they were away.A. to let; to stayB. letting; stayC. to let; stayD. letting; to stay5. The boy is so smart that he can ________ many difficult maths problems correctly.A. put outB. cut outC. work outD. give out6. —How is Susan now?— I hear a famous company her with a job, but she refused it.A. preventedB. offeredC. providedD. introduced7. — Not all people coming here are real bird lovers.— Yeah. Some try to make the place a better area ________ others just bring trouble.A. soB. becauseC. whileD. moreover8. — Is Jack good at singing?— Yes, we can often hear him ________ in the classroom.A. singB. singsC. to singD. singing9. Spring Bud Project is an organization that raises money ________ poor young girls return to school.A. helpingB. to helpC. invitingD. to inviteA. on; atB. on; inC. at; onD. at; in11. It snowed heavily last night. Grandpa made a snowman ________ the children in the morning.A. surpriseB. surprisedC. to surpriseD. surprising12. Our teacher often tells us ________ when we have trouble ________ a problem.A. to give up; solvingB. not to give up; working outC. to give up; to work outD. not to give up; to solve13. As is known to all, about seventy-five ________ of the earth ________ covered with water.A. per cent; areB. per cent; isC. per cents; areD. per cents; is14. He spoke loudly ________ everyone in the room ________ him clearly.A. to make; to hearB. to make; hearC. making; to hearD. making; hear15. ________ animals will be in danger and there will be space for them if we don't take any action.A. More and more; fewer and fewerB. Fewer and fewer; more and moreC. More and more; less and lessD. Less and less; more and more二、完形填空Many people live with animals. Some have dogs and cats. Some have fish. Dian Fossey was different from them. She had gorillas. The gorillas didn't live in her house. She lived in ___16___. What a special woman she was!Dian Fossey was born in San Francisco, California, in 1932. She loved ___17___. She went to college to become a veterinarian(兽医). One day, she took a trip to Africa. ___18___ she was there, she became interested in gorillas. Dian loved watching the gorillas. She decided to move there.Dian Fossey was known as the first person to have19contact(接触) with gorillas. She sat with the gorillas. She played with them. They never ___20___ her.Dian became interested in a baby gorilla. She was able to ___21___ him. She named him Digit. Dian was able to watch him grow. Digit liked Dian, too. A few years later, Digit was killed by hunters. Dian was very ___22___ about Digit's death. She decided to do something to ___23___ the gorillas.She started a ___24___ that tried to protect the gorillas. National Geographic wrote a story about Dian and her group. Many people ___25___ money to her to help save the gorillas. She said she would do more things to save gorillas.16. A. hers B. his C. theirs D. ours17. A. bird B. animals C. forests D. plants18. A. Although B. Because C.While D. Unless19. A. friendly B. strict C. serious D. careful20. A. win B. beat C. protect D. hurt21. A. stay away from B. get close to C. look out for D. catch up with22. A. pleased B. sad C. bored D. proud23. A. protect B. kill C. lose D. miss24. A. team B. group C. club D. center25. A.stole B. wrote C. sent D. received三、阅读理解(每小题1分,共5分)(A)Wetlands are any land that is flooded with shallow water all or most of the time. They are a natural water holding system.There are many types of wetlands. Among them, bogs, marshes and swamps are the three n types. The different types of wetlands have different kinds of plants. Only mosses (苔藓) and a few other kinds of plants can grow in bogs. Grassy plants like cattails(香蒲) and reeds (芦苇) are the most common plants in a marsh. A swamp is a forest whose ground is underwater all or most of the time. Unlike bogs or marshes, a swamp is full of trees and bushes. It's not a good idea to go exploring a swamp without a guide. There are hidden pools of water, thick mud, and sometimes big crocodiles looking for their next meal.Hungry crocodiles aren't the only animals that make the wetlands their home. Otters, turtles, frogs, snakes and many other animals do too. The water is home to many kinds of fish and crabs. Birds, including ducks, geese and cranes, use wetlands seasonally during their long migrations.Wetlands are important because they provide habitats for plants and animals. A wetland system can also protect shorelines, make polluted waters clean, prevent floods, and restore underground water supplies.According to WWF, more than half of the world's wetlands have disappeared since the beginning of the 20th century. If this continues, countless plant and animal species will surely die- out. Without wetlands, cities have to spend more money treating water. Don't feel helpless. Try to do your part to protect them right now. Here are some ideas.26. According to the passage, which of the following is TRUE?A. Wetlands are a man-made water holding system.B. There are three types of wetlands in the world.C. People cannot meet with big crocodiles in wetlands.D. Wetlands can protect shorelines and prevent floods.27. What is the writer probably going to talk about after Paragraph 5?A.What are the different types of wetlands?B. What will happen if wetlands disappear?C. What actions can people take to protect wetlands?D. What other kinds of plants and animals live in wetlands?(B)Some of the greatest problems we face today are the destruction(破坏) of our environment. Brown clouds, polluted water, endangered wild animals... these problems seem so huge.So my family do what we can. We take cloth bags to stores instead of using plastic bags. We walk where we don't have to drive ...But does it do any good? When I am the only one in line at the market with cloth bags, am I doing any good? Does my walking to stores make any real difference to the world?I recently learned something about flamingos(火烈鸟) which like to get together in groups of a thousand or more. Every year, when the time comes for migration, a few of them first take off from the lake. But none of the others seem to notice, so the small group returns. However, the next day they try again. This time a few more fly along with them, but most of them still pay no attention, so they return again. They try for several times. Every time a few more birds join in but, since the thousands of others still take no notice, the great migration plan is once more stopped.Then one day something changes. The same small group of birds once again starts flying and a small number more join in just as before, then more. Finally, they all take flight and the migration really begins. What a spectacular(壮观的) sight it must be -thousands of flamingos taking off into the sky at once!A few can make a difference. Even if you're the one to take the first step, and continue trying, others will someday take notice and together we will solve even our greatest problems.28. Why does the small group of flamingos return to the lake?A. Because they are very tired.B. Because they can't find food in other places.C. Because they don't know where to go.D. Because the others don't fly along with them.29. What’s the writer's purpose of writing this article?A. To show that the writer loves to see the migration of flamingos.B. To introduce how flamingos migrate to readers.C. To tell readers to continue trying and it can make a difference.D. To show that we face lots of serious problems today.30. Where would you most probably read this passage?A. A guidebook.B. A movie poster.C. A personal blog (博客).D. A science magazine.四、词汇(每小题2分,共30分)(A)根据汉语提示、音标或首字母提示写单词,使句意完整31. They finally___________ (卖) their house at a good price.32. I invited Tom to dinner and he happily___________(接受) my invitation.33. The man can't sleep well at night and it leads to___________ / ˈsɪəriəs/ problems to his health.34. Don't take p___________ him. He is pretending(假装) to be poor.35. Don't be too strict with yourself. After all, none of us is___________(完美的).36. Our_____(政府) is taking some action to improve people's living conditions.37. My teacher asked me to___________(描述) this picture with my own words.38. The students come from different places. Do you know all their ___________(地址)?(B)用所给词的适当形式填空39. We don't need to hurry because there is still a little time ___________(leave).40. My grandfather likes sleeping with the windows___________(close) in summer.41. The film is very interesting and I lost myself in it from___________(begin) to end.42. He treats everyone with ___________(kind), so he has lots of friends.43. --Is John in his bedroom now? --Yes. He may___________(make) his bed.44. The doctor did everything he could___________(save) the child who was hurt in the accident.45. A nurse took her arm and___________(lead) her to a chair.五、句型转换,每空一词。
限时训练4(答案)1、在下列句子的空缺处依次填入成语最恰当的一组是(1)11月20日下午3时许,广东惠州南山学校二年级的36名学生进行了一场▲的期中考试。
学生必须顶碗达到10秒钟、站姿“站如松”才合格。
(2)在青奥会举办进入倒计时之际,国际奥委会主席巴赫来到南京考察青奥会准备情况,他认为此次青奥会准备充分,会给世人带来很多惊喜,一定会▲。
(3)在看到自己的母亲加入广场舞健身大军并▲之后,她看待广场舞的视角也有了转变,并且积极地参与了广场舞健身活动。
A. 别有用心不负众望大有裨益B. 别出心裁不负众望受益匪浅C. 别有用心不孚众望受益匪浅D. 别出心裁不孚众望大有裨益B (析:第一句备选的“别出心裁”是另有一种构思或设计,指想出的办法与众不同。
“别有用心”是心中另有算计,指言论或行动另有不可告人的企图。
贬义。
此句只能选“别出心裁”,排除A、C。
第二句备选的“不负众望”是不辜负大家的期望。
“不孚众望”是指不能令大家信服。
根据句意,此句只能用“不负众望”,排除D。
第三句中备选的“受益匪浅”是指有很大的收获。
“大有裨益”是形容益处很大。
)文言文阅读(20分)阅读下面的文言文,完成6-9题。
沈麟士字云祯,吴兴武康人也。
祖膺期,晋太中大夫。
父虔之,宋乐安令。
麟士幼而俊敏,年七岁,听叔父岳言玄。
宾散,言无所.遗失。
岳抚其肩曰:“若斯文不绝,其.在尔乎。
”及长,博通经史,有高尚之心。
亲亡,居丧尽礼。
服阕,忌日辄流泪弥旬。
居贫织帘诵书,口手不息,乡里号为“织帘先生”。
尝为人作竹误伤手,便流泪而还。
同作者谓曰:“此不足损,何至涕零。
”答曰:“此本不痛,但遗体毁伤,感而悲耳。
”尝行路,邻人认其所著屐,麟士曰:“是卿屐邪?”即跣而.反。
邻人得屐,送前者还之,麟士曰:“非卿屐邪?”笑而受之。
宋元嘉末,文帝令仆射何尚之抄撰五经,访举学士,县以麟士应选。
不得已至都,尚之深相接,尝谓子偃曰:“山薮故多奇士,沈麟士,黄叔度①之流也,岂可澄清淆浊邪?汝师之。
高三物理限时规范训练(四)曲线运动、天体运动(时间:60分钟满分:100分)姓名成绩一、选择题(本题共9个小题,每小题6分,共54分,在每小题给出的四个选项中,第1~5题只有一个选项符合要求,第6~9题有多项符合要求.)1.(2014·辽宁大连联考)如图所示,在竖直放置的半圆形容器的中心O点分别以水平初速度v1、v2抛出两个小球(可视为质点),最终它们分别落在圆弧上的A点和B点,已知OA与OB互相垂直,且OA与竖直方向成α角,则两个小球初速度之比v1v2为( )A.tanαB.cosαC.tanαtanαD.cosαcosα2.(2014·吉林长春市高中毕业班调研测试)计算机硬盘内部结构如图所示,读写磁头在计算机的指令下移动到某个位置,硬盘盘面在电机的带动下高速旋转,通过读写磁头读写下方磁盘上的数据.磁盘上分为若干个同心环状的磁道,每个磁道按圆心角等分为18个扇区.现在普通的家用电脑中的硬盘的转速通常有5 400r/min和7 200 r/min两种,硬盘盘面的大小相同,则( )A.磁头的位置相同时,7 200 r/min的硬盘读写数据更慢B.对于某种硬盘,磁头离盘面中心距离越远,磁头经过一个扇区所用的时间越长C.不管磁头位于何处,5 400 r/min的硬盘磁头经过一个扇区所用时间都相等D.5 400 r/min与7 200 r/min的硬盘盘面边缘的某点的向心加速度的大小之比为3∶43.(2014·吉林省长春调研)如图所示,A为静止于地球赤道上的物体,B为绕地球做椭圆轨道运行的卫星,C为绕地球做圆周运动的卫星,P为B、C两卫星轨道的交点.已知A、B、C绕地心运动的周期相同.相对于地心,下列说法中不正确的是( )A.物体A和卫星C具有相同大小的加速度B.卫星C的运行速度大于物体A的速度C.可能出现:在每天的某一时刻卫星B在A的正上方D.卫星B在P点的加速度大小与卫星C在该点加速度相等4.(2014·泉州联考)如图所示,P是水平放置的足够大的圆盘,绕经过圆心O点的竖直轴匀速转动,在圆盘上方固定的水平钢架上,吊有盛水小桶的滑轮带动小桶一起以v=0.2 m/s的速度匀速向右运动,小桶底部与圆盘上表面的高度差为h=5 m.t=0时,小桶运动到O点正上方且滴出第一滴水,以后每当一滴水刚好落在圆盘上时桶中恰好再滴出一滴水,不计空气阻力,取g=10 m/s2,若要使水滴都落在圆盘上的同一条直径上,圆盘角速度的最小值为ω,第二、三滴水落点的最大距离为d,则( )A.ω=πrad/s,d=1.0 m B.ω=2πrad/s,d=0.8 mC.ω=πrad/s,d=0.8 m D.ω=2πrad/s,d=1.0 m5.(2013·高考安徽卷)质量为m的人造地球卫星与地心的距离为r时,引力势能可表示为E p=-GMmr,其中G为引力常量,M为地球质量.该卫星原来在半径为R1的轨道上绕地球做匀速圆周运动,由于受到极稀薄空气的摩擦作用,飞行一段时间后其圆周运动的半径变为R2,此过程中因摩擦而产生的热量为( )A.GMm⎝⎛⎭⎪⎫1R2-1R1B.GMm⎝⎛⎭⎪⎫1R1-1R2C.GMm2⎝⎛⎭⎪⎫1R2-1R1D.GMm2⎝⎛⎭⎪⎫1R1-1R26.(2013·高考江苏卷)如图所示,从地面上同一位置拋出两小球A、B,分别落在地面上的M、N两点,两球运动的最大高度相同.空气阻力不计,则( )A.B的加速度比A的大B.B的飞行时间比A的长C.B在最高点的速度比A在最高点的大D.B在落地时的速度比A在落地时的大7.(2014·河南郑州质检)“天宫一号”目标飞行器既是交会对接目标飞行器,也是一个空间实验室,将以此为平台开展空间实验室的有关技术验证,假设“天宫一号”绕地球做半径为r1,周期为T1的匀速圆周运动,地球绕太阳做半径为r2、周期为T2的匀速圆周运动,已知引力常量为G,则根据题中的条件可以求得( )A.太阳的质量B.“天宫一号”的质量C.“天宫一号”与地球间的万有引力D.地球与太阳间的万有引力8.(2014·四川成都联考)如图所示,在某次自由式滑雪比赛中, 一运动员从弧形雪坡上沿水平方向飞出后,又落回到斜面雪 坡上,如图所示,若斜面雪坡的倾角为θ,飞出时的速度大 小为v 0,不计空气阻力,运动员飞出后在空中的姿势保持不变, 重力加速度为g ,则( )A .如果v 0不同,则该运动员落到雪坡时的速度方向也就不同B .不论v 0多大,该运动员落到雪坡时的速度方向都是相同的C .运动员落到雪坡时的速度大小是v 0cos θD .运动员在空中经历的时间是2v 0tan θg9.(2014·河南开封模拟)随着世界航空事业的发展,深太空探测已逐渐成为各国关注的热点,假设深太空中有一颗外星球,其质量是地球质量的2倍,半径是地球半径的12,则下列判断正确的是( )A .该外星球的同步卫星周期一定小于地球同步卫星的周期B .某物体在该外星球表面所受的重力是在地球表面所受重力的8倍C .该外星球上第一宇宙速度是地球上第一宇宙速度的2倍D .绕该外星球的人造卫星和以相同轨道半径绕地球的人造卫星运行速度相同二、计算题(本题共3个小题,共46分,解答时应写出必要的文字说明、方程式和演算步骤,有数值计算的要注明单位)10.(15分)(2014·山东泰安质检)如图所示,ABC 和DEF 是在同一竖直平面内的两条光滑轨道,其中ABC 的末端水平,DEF 是 半径为r =0.4 m 的半圆形轨道,其直径DF 沿竖直方向,C 、D 可看做重合的点.现有一可视为质点的小球从轨道ABC 上距C 点 高为H 的地方由静止释放.(1)若要使小球经C 处水平进入轨道DEF 且能沿轨道运动,H 至少要有多高?(2)若小球静止释放处离C 点的高度h 小于(1)中H 的最小值,小球可击中与圆心等高的E 点,求此h 的值.(g 取10 m /s 2)11.(15分)(2014·泰兴市期中调研)风洞实验室能产生大小和方向均可改变的风力.如图所示,在风洞实验室中有足够大的光滑水平面,在水平面上建立xOy 直角坐标系.质量m =0.5 kg 的小球以初速度v 0=0.40m /s 从O 点沿x 轴正方向运动,在0~2.0 s 内受到一个沿y 轴正方向、大小F 1=0.20 N 的风力作用;小球运动2.0 s 后风力方向变为沿y 轴负方向、大小变为F 2=0.10 N (图中未画出).试求:(1)2.0 s 末小球在y 方向的速度大小和2.0 s 内运动的位移大小; (2)风力F 2作用多长时间,小球的速度变为与初速度相同; (3)小球回到x 轴上时的动能.12.(16分)如图所示,AB 段为一半径R =0.2 m 的光滑14圆形轨道,EF 为一倾角为θ=30°的光滑斜面,斜面上有一质量为0.1 kg 的薄木板CD ,木板的下端D 离斜面底端的距离为15 m ,开始时木板被锁定.一质量也为0.1 kg 的物块从A 点由静止开始下滑,通过B 点后被水平拋出,经过一段时间后恰好以平行于薄木板的方向滑上木板,在物块滑上木板的同时木板解除锁定.已知物块与薄木板间的动摩擦因数为μ=36.取g =10 m/s 2,求: (1)物块到达B 点时对圆形轨道的压力大小;(2)物块做平拋运动的时间;(3)若下滑过程中某时刻物块和木板达到共同速度,则这个速度为多大?。
高考二轮复习限时训练(四)(时间:60分钟)班级 姓名 得分一. 填空题(每小题5分共60分,请将答案直填入答题纸中的相应空档内) 1.设集合A={x | y=ln (1-x )},集合B={y | y=x 2},则A ∩B = .2.函数)3(log 5.0x y -=的定义域是___ _ ___.3.方程x x 28lg -=的根Z k k k x ∈+∈),1,(,则=k .4.为了得到函数y =2sin(63π+x ),x ∈R 的图像,只需把函数y =2sin x , x ∈R 的图像上所有的点_________________________ ___________________________.5. 在△ABC 中,已知120,3,5A b c === ,则sin sin B C +的值为 .6.设数列{}n a 的首项127,5a a =-=,且满足22()n n a a n N ++=+∈,则13518a a a a ++++ =______ ______.7.已知tan()3πα-=则 22sin cos 3cos 2sin αααα=- . 8.给出四个命题,则其中正确命题的序号为_____ _____. ①存在一个△ABC ,使得sin A +cos A =-1; ②△ABC 中,A >B 的充要条件为sin A >sin B ; ③直线x =8π是函数y =sin(2x +45π)图象的一条对称轴;④△ABC 中,若sin2A =sin2B ,则△ABC 一定是等腰三角形.9.已知△ABC 中,AB =1,BC =2,则角C 的取值范围是___ _____.10.一蜘蛛沿正北方向爬行x cm 捕捉到一只小虫,然后向右转105︒,爬行10cm 捕捉到另一只小虫,这时它向右转135︒爬行回它的出发点,那么x =___ __.11.已知]4,1[,2log )(2∈+=x x x f ,则函数3)()]([)(22++=x f x f x F 的最大值为__12.若数列}{n a 满足12 (01),1 (1).n n n n n a a a a a +≤≤⎧=⎨->⎩且167a =,则2008a =_____ _____.二、解答题(解答应写出文字说明、证明过程或演算步骤.共30分)13(15分).设命题p :函数3()()2x f x a R =-是上的减函数,命题q :函数2()43[0,]f x x x a =-+在上的值域为[1,3],""p q -若且为假命题,""p q 或为真命题,求a 的取值范围14(15分).已知函数()()⎪⎭⎫⎝⎛<<>>++=20,00,A 1cos 2πϕωϕωx A x f 的最大值为3,()x f 的图像的相邻两对称轴间的距离为2,在Y 轴上的截距为2.(Ⅰ)求函数()x f 的解析式;(Ⅱ)设数列()n n S n f a ,=为其前n 项和,求100S .高考二轮复习限时训练(四)参考答案 1.)1,0[; 2.)3,2[; 3.(3,4)x ∈;4.向左平移6π个单位长度,再把所得各点的横坐标伸长到原来的3倍(纵坐标不变) 5.6.126;9. 0<C ≤π6 ; 11.16 ; 12.5713解:33501222a a <-<<<得...(3分) 2()(2)1,[0,]24,...(10),2 4 (14)f x x a a a a a =--≤≤∴<<≤≤<<≤≤ 在上的值域为[-1,3]得2a 4...(6分)p 且q 为假,p 或q 为真,得p,q 中一真一假...(8分)3若p 真q 假得,2535若p 假q 真得,分综上或分22214.解:(Ⅰ)()()2122cos 2A x A x f +++=ϕω ,依题意 2A,3212=∴=++AA 又 4T , 22==得T ,4 422πωωπ==∴ ()222cos +⎪⎭⎫⎝⎛+=∴ϕπx x f . 令 x=0,得 22 20, 222cos πϕπϕϕ=∴<<=+又所以, 函数()x f 的解析式为 () 2sin 2⎪⎭⎫⎝⎛-=x x f π (Ⅱ)由() 2sin 2⎪⎭⎫⎝⎛-=x x f π 知() 2sin 2⎪⎭⎫ ⎝⎛-==n n f a n π当n 为偶数时,()2=n f当n 为奇数时,()()()()()()499977531=+==+=+f f f f f f200254502 100=⨯+⨯=∴S。
限时训练(四)Ⅰ.阅读理解26yearold Tao Jinjin lives in Shijiazhuang, Hebei Province. Eight years ago, he lost his right arm in an accident. After that, he had a long and painful life, but with the support and encouragement of his family, he gradually recovered(恢复) from the pain and sadness and began to work on building sites for a living.Not happy with just being a doorman, he tried to do hard work such as carrying bricks(砖) and plastering walls(抹墙). Right from the start, Tao didn't want to be pitied, but wanted to prove that he could still do something.By chance, a friend showed him an app which allows him to upload videos of him at work. Soon he became a hit on the website. Now he has nearly 800,000 fans who watch him online at work, carrying bricks on a building site.Tao's mother takes a video of her son, who says the support he gets online has encouraged himself to keep working. In return, his example has inspired many others to improve themselves and try to change their own destiny(命运).At present Tao gets 100 yuan each day from the building site, but thanks to his live streaming(网上直播), his income can reach up to 8,000 yuan. This has really helped him a lot. And he's planning to get married and become a father one day. He wants to do everything he can to change his destiny, rather than stay as a builder.()1.What does Tao Jinjin do at present?A.An actor. B.A director.C.A reporter. D.A building worker.()2.Why did Tao choose to do his work at the beginning?A.He wanted to make more money.B.He wanted to be pitied by others.C.He wanted to show he could live on his own.D.He couldn't do any other work.()3.Tao's videos get so much attention on the Internet because ________.A.Internet users are interested in some work like carrying bricks on the building siteB.many people want to know how to get 8,000 yuan a month from the videosC.the videos encourage people to improve themselves and spread positive energyD.these videos can always bring much pleasure to Internet users()4.What can we know from the passage?A.The Internet has really changed Tao Jinjin's life.B.Tao Jinjin's mother takes care of him every day.C.Tao Jinjin is always living a long and painful life.D.Tao Jinjin keeps his live streaming because of his father.Ⅱ.语法填空阅读下面短文,在空白处填入一个适当的词,或填入括号中所给单词的正确形式(每空不多于3个单词)。
Ask any young person in the UK what they worry about most, when they change school1.________ move up to secondary school, and they will probably mention two things: getting2.________ (lose) and making new friends.The first of these is easy 3.________ (solve): most high schools run induction(入学仪式) days to help new students find their way around the building and, failing that, there is usually a map! Meanwhile, 4.________(make) new friends can be trickier(更棘手的).So what's the 5.________ (good) way to make new friends? Here are some top tips from a group 6.________ 12yearold children at a Warwichshire school:Be 7.________(confidence). You won't be the only person who feels nervous, so make eye contact, smile and go and say “Hello”.Be friendly. Be interested and listen to what others say and, when you have made new friends, treat 8.________(they) well.Be presentable(体面的). No one will want to get to know you if you are dirty, smelly or have awful 9.________(habit).Be tenacious(坚持的). If at first you don't 10.________(success), then try and try again!详解详析Ⅰ.1.D细节理解题。
根据短文第一段最后一句话“…and began to work on building sites for a living.”和第二段第一句话“Not happy with just being a doorman, he tried to do hard work such as carrying bricks and plastering walls.”可知,现在陶津津是一名建筑工人。
故选D。
2.C细节理解题。
根据短文第二段第二句话“Right from the start, Tao didn't want to be pitied, but wanted to prove that he could still do something.”可知,陶开始选择工作,因为他想证明他能靠自己活着。
故选C。
3.C细节理解题。
根据短文第四段第二句话“In return, his example has inspired many others to improve themselves and try to change their own destiny.”可知,陶的视频在网上受到很大关注,因为视频鼓励人们提升自我,传播正能量。
故选C。
4.A推理判断题。
根据短文第五段第一句话“At present Tao gets 100 yuan each day from the building site, but thanks to his live streaming, his income can reach up to 8,000 yuan.”可推知,网络真的改变了陶津津的生活。
故选A。
Ⅱ.1.or 2.lost 3.to solve 4.making5.best 6.of7.confident8.them9.habits10.succeed。