限时训练4

手惰市安逸阳光实验学校高考英语二轮专题复习精品阅读理解部分之限时训练（四）阅读理解A breathtaking trick potentially left over from our ancestors might be found in us — the ability to sense oxygen through our skin. Amphibians(两栖动物), animals such as frogs that can live both on land and in water, have long been known to be capable of breathing through their skin. In fact, the first known lungless frog that breathes only through its skin was discovered recently in the rivers of Borneo. Now the same oxygen sensors found in frog skins and in the lungs of mammals have unexpectedly been discovered in the skin of mice.“No one had ever looked,” explained Randall Johnson, a biologist researcher.Mice and frogs are quite distant relatives, so the fact they have these molecules (分子) in common in their skin suggests they might well be found in the skin of other mammals, such as humans.“We have no reason to think that they are not in the skin of people too,” Johnson said.These molecules not only detect oxygen, but help increase levels of vital red blood cells, which carry oxygen around the body. Normal mice breathing in air that is 10 percent oxygen—a dangerously low level similar to conditions at the top of Mount Everest, and about half that of air at sea level. However, mice that had the oxygen sensor HIF-1 a genetically removed from their skin failed to produce this hormone (荷尔蒙) even after hours of such low oxygen.These findings, if they hold true in humans, suggest one could raise the level of oxygen circulating inside the body. This could help treat lung diseases and disorders such as anemia (贫血症) without injecting drugs, which make up a multibillion-dollar market, Johnson said.Athletes also often try to get more oxygen delivered to their muscles in order to improve their performance. They often do this by training at high altitudes or in low-oxygen tents. The new study suggests they might want to expose their skin as well as breathing in low-oxygen air to improve their performance. “It’s hard to say what exactly might be done, however—there’s a lot we don’t know yet,” Johnson explained. The scientists detailed their findings in the April 18 issue of the journal Cell.64. Which of the following statements is TRUE according to the passage?A. Johnson believes that oxygen sensors also exist in human skin.B. People have to surf the Internet to read detailed findings.C. It has been proved that these findings help treat lung diseasesD. It has long been expected oxygen sensors exist in mice’s skin.65. One of the functions of the molecules mentioned above is _______.A. carrying oxygen around the bodyB.improving athletes’ performanceC. detectingoxygenD. increasing level of oxygen66. What is Johnson’s attitude to the application of the findings to the athletes’ training?A. NegativeB. DoubtingC.Positive D. Hesitating67. The best title of the passage may be _______.A. Great Findings Benefit Athletes A LotB. Frogs And Mice Are Distant RelativesC. First Known Animal Breathes Through SkinD. Humans Might Sense Oxygen Through Skin完形填空（共20小题；每小题1分，满分20分）A farmer had some puppies (小狗) he needed to sell. He painted a sign36 the puppies and set about nailing it to a post on the 37 of his yard. As he was 38 the last nail into the post, he felt a pull on his clothes. He looked down 39 the eyes of a little boy.“Mister,” he said, “I want to buy one of your puppies. ”“ 40 ,” said the farmer, as he rubbed the sweat off the back of his neck, “these puppies co me from fine 41 and cost much money. ”The boy dropped his head for a moment. Then reaching 42 into his pocket, he pulled out a 43 of coins and said to the farmer. “I've got thirty-nine cents. Is that enough to take a look? ”“Sure, ” said the farmer, and with that he 44 a whistle, “Here, Dolly! ” he called.45 from the doghouse ran Dolly followed by four little balls of fur. The little boy 46 his face against the chain link fence. His eyes danced with 47 .As the dogs made their 48 to the fence, the little boy noticed something else. Another little ball appeared, obviously 49 . In a somewhat 50 manner the little puppy began hobbling toward the others, doing its best to catch up with others.“I want that one, ” the little boy said, pointing to it.The farmer 51 down at the boy's side and said, “Son, you don't. He will never be able to run and play with you like these other dogs. ”52 that the little boy stepped back from the fence, 53 down, and began rolling up one leg of his trousers. In doing so he exposed a steel brace(支持物) attaching itself to a 54 made shoe. Looking up, he said, “You see sir, I don't run too well myself, and he will need someone who understands. ”Yes, the world is full of people who need someone who 55 .36. A. introducing B. showing C. advertising D. explaining37. A. back B. edge C. center D. top38. A. driving B. pushing C. entering D. taking39. A. to B. on C. for D. into40. A. Certainly B. Well C. Sorry D. Likely41. A. parents B. friends C. relatives D. customers42. A. deeply B. deep C. wide D. widely43. A. number B. piece C. handful D. deal44. A. went out B. took out C. let out D. found out45. A. Away B. Far C. Out D. Into46. A. felt B. placed C. pushed D. pressed47. A. tears B. delight C. fear D. sorrow48. A. way B. direction C. path D. route49. A. whiter B. fatter C. thinner D. slower50. A. awkward B. forward C. smart D. interesting51. A. looked B. lay C. pointed D. knelt52. A. For B. In C. About D. With53. A. reached B. arrived C. lay D. put54. A. specially B. especially C. exactly D. naturally55. A. loves B. understands C. shares D. cares 任务型阅读：请认真阅读下面短文，在表格中的空格里填上最恰当的单词(每空1个单词)Since the beginning of human evolution, men have migrated（迁移）across continents in search of food, shelter, safety, and comfortable weather. People still move for these reasons, but new reasons for human migration are arising, such as job relocation(重新安置) and overpopulation. Three million migrants are moving from poor countries to wealthier ones each year, and increasingly, their destination is a neighboring country in developing parts of the world. People are moving within the developing world for the same reasons as they migrate to wealthier nations. People from poor countries are going to less poor countries, fleeing wars and conflicts. They are also responding to population pressures because some countries are densely populated, and they often have high population growth. Those people need to go somewhere else.There are three main reasons why people move. The basic categories and percentages are as follows, according to the Current Population Surveys (CPS):Family-related reasons account for 26.3%, including changes in marital （婚姻的） status, establishing a household and other family reasons; work-related reasons 16.2%, including job transfer, retirement, and other job-related reasons; housing-related reasons 51.6%, including new and better houses, better neighborhood, cheaper housing and other housing reasons; the remaining 5.9% of other reasons are attending college, the change of climate and health reasons.Americans have been migrating south and west for decades in search of better job opportunities and warmer climates. They have also been moving to places a little far from cities, in search of bigger yards and houses, lower crime rates and better schools. In 1950, nearly a fifth of the population lived in the nation’s 20 largest cities. In 2006, it was about one in ten. That’s why many American people say, “Big Cities Shrink as People Move South, West.”Between March 2005 and March 2007, 73.4 million Americans moved. Fifty-six percent of these moves were within the same country. Twenty percent were between counties but in the same state. Nineteen percent were moves to a different state. Some families even went abroad. Title: People on the 71参考答案阅读理解64----67 ACCD完形填空36－40 CBADB; 41－45 ABCCC; 46－50 DBADA; 51-55 DDAAB任务型阅读：71. move, 72. history, 73. increasing, 74.richer/wealthier, 75. Reasons, 76. majority, 77. related/linked, 78. for, 79. climate, 80. tendency/phenomenon/trend。

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。

曲线运动 限时训练413．(2008年广东理基)由于地球的自转，使得静止在地面的物体绕地轴做匀速圆周运动．对于这些做匀速圆周运动的物体，以下说法正确的是( )A ．向心力指向地心B ．速度等于第一宇宙速度C ．加速度等于重力加速度D ．周期与地球自转的周期相等14． [2014·四川卷] 有一条两岸平直、河水均匀流动、流速恒为v 的大河．小明驾着小船渡河，去程时船头指向始终与河岸垂直，回程时行驶路线与河岸垂直．去程与回程所用时间的比值为k ，船在静水中的速度大小相同，则小船在静水中的速度大小为( )A ．12-k kvB ．21k v -C ．21k kv- D ．12-k v15.【2013江苏高考】如图所示,“旋转秋千冶中的两个座椅A 、B 质量相等,通过相同长度的缆绳悬挂在旋转圆盘上. 不考虑空气阻力的影响,当旋转圆盘绕竖直的中心轴匀速转动时,下列说法正确的是(A)A 的速度比B 的大(B)A 与B 的向心加速度大小相等(C)悬挂A 、B 的缆绳与竖直方向的夹角相等(D)悬挂A 的缆绳所受的拉力比悬挂B 的小16．【2013上海高考】如图，轰炸机沿水平方向匀速飞行，到达山坡底端正上方时释放一颗炸弹，并垂直击中山坡上的目标A 。

已知A 点高度为h ，山坡倾角为θ，由此不能算出(A)轰炸机的飞行高度(B)轰炸机的飞行速度(C)炸弹的飞行时间(D)炸弹投出时的动能17．【2013上海高考】右图为在平静海面上，两艘拖船A 、B 拖着驳船C 运动的示意图。

A 、B 的速度分别沿着缆绳CA 、CB 方向，A 、B 、C 不在一条直线上。

由于缆绳不可伸长，因此C 的速度在CA 、CB 方向的投影分别与A 、B 的速度相等，由此可知C 的(A)速度大小可以介于A 、B 的速度大小之间(B)速度大小一定不小于A 、B 的速度大小(C)速度方向可能在CA 和CB 的夹角范围外(D)速度方向一定在CA 和CB 的夹角范围内18．[2014·江苏卷] 为了验证做平抛运动的小球在竖直方向上做自由落体运动，用如图所示的装置进行实验．小锤打击弹性金属片，A 球水平抛出，同时B 球被松开，自由下落．关于该实验，下列说法中正确的有( )A ．两球的质量应相等B ．两球应同时落地C ．应改变装置的高度，多次实验D ．实验也能说明A 球在水平方向上做匀速直线运动19．（2012年广东卷）图4是滑道压力测试的示意图，光滑圆弧轨道与光滑斜面相切，滑道底部B 处安装一个压力传感器，其示数N 表示该处所受压力的大小。

物理限时训练4一、单选择題:14. 物理学中，运动的分解、力的合成、平均速度这三者所体现的共同的科学思维方法是（）A．控制变量法 B.极限思维法 C. 理想模型法 D.等效替代法15. 我国“北斗”卫星导航定位系统将由5颗静止轨道卫星（同步卫星)和30颗非静止轨道卫星组成,30颗非静止轨道卫星中有27颗是中轨道卫星。

中轨道卫星轨道高度约为 2.15X104 km ,静止轨道卫星的高度约为3.60X104 km。

下列说法正确的是（）A. 中轨道卫星的线速度大于7.9 km/sB. 5颗静止轨道卫星的轨道平面和赤道平面的夹角各不相同C. 静止轨道卫星的运行周期大于中轨道卫星的运行周期D. 静止轨道卫星的向心加速度大于中轨道卫星的向心加速度16. 下图为某款电吹风的电路图。

a、b、c、d为四个固定触点。

可动的扇形金属触片P可同时接触两个触点。

触片P处于不同位置时，电吹风可处于停机、吹热风和吹冷风等不同的工作状态。

n1和n2分别是理想变压器的两个线圈的匝数。

该电吹风的各项参数如下表所示。

下列说法正确的有A. 吹冷风时触片P与触点b、c接触B. 可由表格中数据计算出小风扇的内阻为60ΩC. 变压器两线圈的匝数比n l：n2 = 13 : 15D. 若把电热丝截去一小段后再接入电路，电吹风吹热风时的功率将变小，吹冷风时的功率不变17. 4（）在“测定玻璃的折射率”实验中，已画好玻璃砖界面两直线aa′与bb′后，不小心误将玻璃砖向上稍平移了一点，如下图左所示，若其它操作正确，则测得的折射率将A．变大B．变小C．不变D．变大、变小均有可能二、不定项选择18. 利用传感器与计算机结合，可以自动作出物体运 动的图象。

某同学在一次实验中得到运动小车的速度一 时间图象如图所示，由此图象可知A. 18 s 时的加速度大于13 s 时的加速度B. 小车做曲线运动C. 13 s 末小车距离出发点最远D. 小车前10S 内的平均速度比后10 S 内的大19.如图所示，在光滑绝缘斜面上放置一矩形铝框abcd,铝框的质量为 m 、电阻为R ，斜面上ef线与gh 劝线间有垂直斜面向上的匀强磁场，ef//gh//pq//ab,eh>bc 。

课后限时集训（四）伟大的抗日战争（时间：75分钟分值：100分）一、选择题(本题共15小题，每题3分，共45分)1．1932年1月21日,倾向于政府且颇有实力的报纸《天津大公报》在社论中提出：“政府应该开辟和平解决红军之路"，“在不暴动、不割据、不违法扰乱秩序的条件下,撤销禁止异党活动的禁令”。

这一社论反映了当时(）A．农村革命根据地不断发展壮大B．中日民族危机逐渐加深C．中日民族矛盾上升为主要矛盾D．国民政府对日政策有所调整B［1932年1月，日军已经占领东北三省大部，中国领土主权遭到严重践踏，民族危机日益加深，在此背景下《天津大公报》发表和平解决红军的社论，故选B项；材料反映的是《天津大公报》关于国共和平相处的主张,并未涉及农村革命根据地的变化，排除A项；1932年日本还没有发动全面侵华战争，国共阶级矛盾仍是国内主要矛盾,排除C项；1932年国民政府仍坚持对日妥协政策，集中力量“围剿”红军,排除D项。

] 2。

1931年十月刊的《良友》杂志上有一幅黄文农作的漫画（如右图)，内容为：“耗子不会生蛋,赶来和母鸡寻衅，妄想攫夺此蛋以为己有."此漫画反映了()A．抗日战争初期B．中国抗日民众力量的觉醒C．全国性爱国救亡运动的不断高涨D．中日民族矛盾上升为主要矛盾A[根据材料“1931年十月”“妄想攫夺此蛋以为己有”以及漫画中母鸡毛发竖起的斗争状态可知，1931年九一八事变后，日本的侵略引起了国人不满，反映了日本侵略下的国民心态,故选A项;材料只是说明当时国民的心态，无法体现抗日民众力量觉醒，排除B项；“全国性爱国救亡运动”高涨应出现在一二·九运动时期,排除C项;中日民族矛盾上升为主要矛盾是在华北事变之后，排除D项。

］3．1931年九一八事变爆发后，第二天下午,中国驻国联代表施肇基表示此事件应该由日本方面负责，“中方挑衅”之说，乃是日本方面借此以武力占领中国城池的口实。

21日,施肇基正式要求国联对日军占领满洲一事予以禁止。

限时训练4完形填空The landlord’s mistakeWhen Thomas Jefferson was vice- president of the United States, there was not a railroad in all the world. The roads were muddy and 16 . So people did not 17 very much. If a man expected to go to another city, he often rode a 18 .One day some men were sitting by the door of a 19 in Baltimore when they saw a horseman riding very 20 . He was dressed plainly, looking like a farmer.“Do you have a room here for me?” he asked the landlord.Now the landlord 21 himself on keeping a first-class hotel, and he 22 that his guests would not like the rough-looking traveler. So he answered, “No, sir. Every room is 23 .”“Well, then,” answered the stranger, “I’ll see what they can do for me at t he Planters’Tavern, round the 24 ,” and he rode away.About an hour later, a well-dressed gentleman came into the hotel, saying, “I wish to 25 Mr. Jefferson.”“There is not a Mr. Jefferson!” said the landlord.“Oh,” the man was 26 , “but he must be. He said he intended to 27 at this hotel.”“No. A moment ago, an old clodhopper (乡巴佬) came here but I’ve sent him round to the Planters’.”“Did he 28 a gray horse?”“Yes, and he was quite tall.”“That was Mr. Jefferson, the vice-president,” said the gentleman.“The vice-president?” 29 the landlord, “How foolish I was to 30 him away!” So he rushed to the p lanters’ to 31 Mr. Jefferson.“Mr. Jefferson,” he said, “I’ve come to ask your 32 . You were so bespattered (溅污) with 33 that I thought you were some old farmer. If you come back to my hotel, you will have the best 34 in it. Won’t you come?”“No,” answered Mr. Jefferson. “A farmer is as 35 as any other man; and where there’s no room for a farmer, there can be no room for me.”16. A. straight B. wide C. rough D. short17. A. practice B. work C. care D. travel18. A. bike B. horse C. plane D. train19. A. hotel B. station C. college D. hall20. A. swiftly B. freely C. slowly D. happily21. A. congratulated B. instructed C. sent D. prided22. A. explained B. feared C. regretted D. admitted23. A. safe B. full C. cheap D. tidy24. A. corner B. yard C. farm D. city25. A. receive B. invite C. see D. honor26. A. bored B. depressed C. frightened D. surprised27. A. knock B. glance C. stop D. recover28. A. train B. ride C. follow D. buy29. A. cried B. complained C. smiled D. replied30. A. carry B. take C. turn D. put31. A. see off B. call on C. pick up D. fetch back32. A. pardon B. purpose C. situation D. condition33. A. oil B. mud C. grass D. powder34. A. position B. studio C. restaurant D. room35. A. good B. famous C. rich D. powerful阅读理解Honey from the African forest is not only a kind of natural sugar, it is also delicious.Most people, and many animals, like eating it. However, the only way for them to get that honey is to find a wild bees' nest and take the honey from it. Often, these nests arehigh up in trees, and it is difficult to find them. In parts of Africa, though, people and animals looking for honey have a strange and unexpected helper - a little bird called a honey guide.The honey guide does not actually like honey, but it does like the wax in the beehives (蜂房). The little bird cannot reach this wax, which is deep inside the bees' nest. So, when it finds a suitable nest, it looks for someone to help it. The honey guide gives a loud cry that attracts the attention of both passing animals and people. Once it has their attention, it flies through the forest, waiting from time to time for the curious animal or person as it leads them to the nest. When they finally arrive at the nest, the follower reaches in to get at the delicious honey as the bird patiently waits and watches. Some of the honey, and the wax, always fall to the ground, and this is when the honey guide takes its share.Scientists do not know why the honey guide likes eating the wax, but it is very determined in its efforts to get it. The birds seem to be able to smell wax from a long distance away. They will quickly arrive whenever a beekeeper is taking honey from his beehives, and will even enter churches when beeswax candles are being lit.60. Why is it difficult to find a wild bees' nest?A. It's small in size.B. It's hidden in trees.C. It's covered with wax.D. It's hard to recognize.61. What do the words "the follower" in Paragraph 2 refer to?A. A bee.B. A bird.C. A honey seeker.D. A beekeeper.62. The honey guide is special in the way .A. it gets its foodB. it goes to churchC. it sings in the forestD. it reaches into bees' nests63. What can be the best title for the text?A. Wild BeesB. Wax and HoneyC. Beekeeping in AfricaD. Honey-Lover's Helper03For most Americans, a clean glass of water is just a matter of turning on a faucet （水龙头. But for many of the world’s poorest, it’s hard to get .On Wednesday, the United Nations(UN)marked World Water Day by trying to cut the number of people without good drinking water-one billion human beings worldwide-in half. In the next ten years ,the UN will work with governments around the world to reduce the shortage.Without clean water nearby, many people use water . In India, many people bathe and wash their clothes in rivers that are polluted by human waste.According to the UN, not having enough clean water and sanitation causes more than three million deaths a year.“The links between water and human heath are powerful,” said Dr Lee Jong Wook, director-general of the World Health Organization(WHO). “We cannot liv e without clean water.”In fact, the International Federation of the Red Cross said that quick reaction after last year’s Asian tsunami(海啸)had stopped disease. The agency provided clean water to nearly 500,000 people in Indonesia and Sri Lanka after the tsunami.World Water Day was first celebrated in 1993. Since then, it is celebrated each year on March 22.1.What is the best title of the passage?2. Which sentence in the passage can be replaced by this one?The quality of the water is closely connected with human health.3.What did the International Federation of the Red Cross do after the tsunami? And why?4. Please fill in the blank in the third paragraph with proper words or phrases to complete the sentence.5.Translate the first paragraph into Chinese.完型16-35 CDBAC DBBAC DCBAC DABDA阅读60.B 61.C 62.A 63.D1. World Water Day.2. The links between water and human health are powerful3. It provided clean water to the people in Indonesia and Sri Lanka to stop disease from spreading.4. that/which is harmful to their health ;that /which is bad for their health ;that/which isn’t fit to drink.5. 对大多数美国人来讲，只需打开水龙头，就可以拥有一杯干净的水，但是对于世界上的很多穷人来讲，却很难。

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”。

高考英语阅读理解专项限时训练4第一节阅读下列短文，从每题所给的4个选项 (A、B、C和D) 中，选出最佳选项。

AEvery week there are amazing things to do in Los Angeles with kids! We’ve collected a list of what we think are the most fun, most interesting family events in LA at the beginning of 2020—and hopefully will result in LA parents and kids having the best time together as a family!Kids Week ActivitiesVroman’s Bookstore 695 E. Colorado Blvd, Pasadena, CA 91101Vroman’s Bookstore is hosting special Kids Week Activities all week long from Monday, Jan. 6th through Friday, Jan. 10th. Different activities are planned each day including an Art Extravaganza (on Tuesday) and Superhero Day (on Wednesday). All activities are free, but reserve in advance to make sure there are enough supplies and materials available for everyone.Into the WoodsHollywood Bowl 2301 N. Highland Ave., Los Angeles, CA 90068Enjoy a performance of Into the Woods happening at the Hollywood Bowl on Friday, Jan. 10th (8:00 pm), Saturday, Jan. 11th (8:00 pm), and Sunday, Jan. 12th (7:30 pm). Be a part of “an enchanted world of magic beans, towering giants, and handsome princes.” Tickets are available online.Family Sandcastle Building DayCabrillo Marine Aquarium 3720 Stephen M. White Dr., San Pedro, CA 90731Head to the Cabrillo Marine Aquarium on Saturday, Jan.11th 10:00 am to 3:00 pm for Family Sandcastle Building Day. Bring your favorite sandcastle building tools and your creativity to this free event.Outdoor Art Moves, Winter 2020 & 826LA@Hammer: Who's Got the Art? Hammer Museum 10899 Wilshire BIvd, Los Angeles, CA 90024The Hammer Museum is hosting two different special events on Sunday, Jan.12th. At both 11:00 am & 1:00 pm, children aged 5 and above can participate in Outdoor Art Moves, Winter 2020 led by movement director Zoe Rappa-port. Families will “discover relationships between nature, art, and the creative process” during these special movement activities. Also happeningat 11:00 am is 826LA@Hammer: Who's Got the Art? Children aged 8-14 will help “inspect the galleries, correct clues, and crack the case of a legendary mystery theft."1. Which activity needs to be booked ahead of time?A. Kids Week Activities.B. Into the Woods.C. Family Sandcastle Building Day.D. Outdoor Art Moves, Winter 2020.2. Where can kids enjoying playing detectives go?A. 695 E. Colorado Blvd., Pasadena.B. 2301 N. Highland Ave, Los Angeles.C. 3720 Stephen M. White Dr. San Pedro.D. 10899 Wilshire Blvd., Los Angeles.3. Who is the passage mainly intended for?A. Artists and directors.B. Parents and kids.C. Guides and tourists.D. Builders and architects.BMy nephew came for a visit one hot, July weekend. I persuaded him to stay inside by joining him in a Nintendo game. After being mercilessly defeated by a more experienced player, I suggested that we relax for a while. He slipped out of the room and I caught a few moments of peace and quiet.“Look, Alice,” he said enthusiastically as he ran over to the chair where I was recovering. “I found a kite. Could we go outside and fly it?”Glancing out of a nearby window, I noticed there was not a breeze (微风). “I'm sorry, Tripper,”I said, sad to see his disappointed eyes, but thankful for the short period of rest from more activities. “The wind is not blowing today. The kite won’t fly.”The determined 10-year-old replied. “I think it’s windy enough. I can get it to fly,” he answered, as he hurried out through the back door. I peeked through the curtains to watch determination in action. Up and down the yard he ran, pulling the kite attached to a small length of string. The plastic kite, proudly displaying a picture of Batman, remained about shoulder level.He ran back and forth, as hard as his ten-year-old legs would carry him, looking back hopefully at the kite trailing behind. After about ten minutes of unsuccessful determination, he came back in.I asked“How did it go?” “Fine,” he said, “I got it to fly some.” As he walked past me to return the kite to the closet shelf, I heard him say under his breath, “I guess I'll have to wait for the wind.”At that moment I heard another voice speak to my heart. “Alice, sometimes you are just like that. You want to do it your way instead of waiting for the wind.” And the voice was right. We usually want to use our own efforts to accomplish what we want to do. We wait for the wind only after we have done all we can and have exhausted our own strength. We must learn how to rely on Him in the first place!4. The writer didn’t fly the kite with his nephew because she ________.A. wanted to get relaxedB. preferred to stay in peace and quietC. thought the weather was not suitableD. was not so experienced in flying kites5. Which word can best describe Tripper?A. Insistent.B. Naughty.C. Sensitive.D. Clever6. What can we infer from Paragraph 5?A. Tripper became hopeless.B. Tripper was easy to give up.C. Tripper didn’t want to admit defeat.D. Tripper was disappointed with the kite flying.7. What is the best title for the passage?A. Try Your Best.B. Wait for the Wind.C. Fly a Kite in Life.D. Determine to Succeed.CChinese Culture Shown to the World with LoveLi Ziqi, a short video blogger specializing in traditional Chinese cooking and handicrafts, has gained worldwide popularity.Li has about 20 million followers on Sina Weibo, China’s equivalent to Twitter, plus 7 million followers on overseas social media networks. Many foreigners say they have got to know traditional Chinese food culture via her channel.It is the spirit of craftsmanship (技艺) behind her works that makes Li’s video clips attractive. She strictly follows the authentic traditional steps and procedures in making traditional Chinese food and handicrafts, such as peach flower wine and silk, and goes to great lengths to ensure her videos are accurate. Sometimes she spends several months producing one of her videos.Li has been inheriting (继承) traditional Chinese culture in a rather creative way. A closer look at her videos will show that they are never with any “analysis” that makes people feel bored. They just show audiences each and every detail of traditional Chinese culture so that the latter knows how Chinese live their beautiful and elegant lives. It is that universal appeal that makes her works so attractive. Thanks to Li's efforts, many intangible cultural heritages that only existed in memories and written records now appear before our eyes. Via her short videos, Li presents the image of abeautiful and friendly China.With the growth of the Chinese economy, people overseas are showing more interest in traditional Chinese culture. Li has shown how to satisfy that interest in a good way, namely showing the best parts of traditional Chinese culture with her heart.To effectively present the beauty of Chinese culture to the world, we need more Li Ziqi.8. What can we learn about Li Ziqi’s video clips?A. They promote the sales of Chinese food and handicrafts.B. They attract a large number of foreigners to visit her online shop.C. They are based on her family’s recipes of making traditional Chinese food.D. They aim to introduce traditional Chinese food culture and handicrafts worldwide.9. What could be inferred from Paragraph 3 and Paragraph 4?A. Analysis of Chinese culture in Li’s videos makes people bored.B. Cultural heritages usually exist in memories and written accounts.C. Details and accuracy play significant roles in the success of Li’s videos.D. Li makes sure all of her video clips are short enough to be downloaded.10. What does the underlined word “intangible” in Paragraph 4 mean?A. nonphysicalB. inaccessibleC. invaluableD. unnoticeable11. What is the author’s purpose in writing the passage?A. To provide guidance on cooking and making handicrafts.B. To suggest a way of attracting more followers on Sina Weibo.C. To encourage more people to make efforts to bring Chinese culture to the world.D. To give an example of how to gain worldwide popularity as a short video blogger.DFood experts say washing could spread the germs on your turkey in the kitchen sink or nearby food. But it's been a challenge trying to convince cooks to stop rinsing （冲洗）off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the bacteria.The do—not—wash raw poultry advice from the USDA is relatively new and perhaps hasn't caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.But food preparation is a complicated act, and germs from poultry can be spread even if it'snot washed, especially when birds are removed from packaging.The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli （大肠杆菌）and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to their lettuce. But even some of those who did not rinse the chicken got germs on the lettuce. And there are other opportunities for germs to survive on turkeys: melting and cooking.To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren't out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.12. Why don't people accept USDA's advice?A. Because the advice is relatively new.B. Because cleaning seems more trustworthy.C. Because cooks clean the turkey before cooking it.D. Because heat can kill most germs and no one eats raw food.13. What can be concluded from Paragraph 4?A. Food packages carry germs.B. Hands and surfaces are easy to get E. coli.C. Germs from a turkey can be spread whether it is washed or not.D. Multiple methods should be applied to food to get rid of germs.14. Which way may help to cook a turkey safely?A. Rinse off the turkey before it is heated.B. Keep the turkey away from the lettuce and refrigerator.C. Wash hands and packages before taking out the turkey.D. Use a thermometer to check the temperature of the turkey.15. From which section of a magazine is the text probably taken?A. Medicine.B. Culture.C. Education.D. Science.第二节根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。

限时提升训练 4 A ( 8 min )Sports play an 1 part in our life. All over the world, people enjoy sports. Wherever you are, you can 2 different kinds of sports or games. Some sports or games can go back to thousands of 3 , like running and jumping. Chinese Kung fu, for example, has a very long history. 4 basketball and volleyball are new. Neither has a history of a hundred years. People are inventing new sports or games all the time.Sports help people keep healthy and happy and live 5 . Lots of people take part in sports and play games. But some people like to watch 6 do sports. In order to watch the games, some people 7tickets or turn on their TVs at home. They don't go to bed until the games are 8 . When their player gets the first or their team wins, they often 9 very excited.When the seasons change, sports will change. In seasons, people play different games. For example, swimming is fun in warm weather just like in summer, but skating or skiing (滑雪) is popular in 10 .( )1. A.different ( )2. A.watch ( )3. A.seconds ( )4. A.But ( )5. A.longer ( )6. A.the other ( )7. A.buy ( )8. A.away ( )9. A.smell ( )10. A.spring B.importantB.look likeB.minutesB.OrB.harderB.othersB.lendB.onB.getB.autumnC.strangeC.look atC.yearsC.SoC.worseC.otherC.showC.overC.tasteC.winterB (4 min )What is your favorite color? Do you like yellow, orange, or red? If you do, you must be an active person who enjoys life. Do you like blue? Then you are probably quiet, shy, and would rather follow than lead.Colors do influence our moods (情绪). A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day. On the other hand, black is depressing(令人压抑的). There was a black bridge over the Thames River, near London. The number of people who killed themselves on that bridge used to be larger than on any other bridge in the area -- until it was repainted green.Light and bright colors make people not only happier but also more active. In the factory, the workers will work better, harder, and have fewer accidents when their machines are painted orange rather than black.1. An active person may like ________.A. yellow, orange, or redB. yellow, black, or redC. orange, blue, or blackD. black, red, or orange2. Most people feel more ________in a yellow room than in a dark green one.A. tiredB. boredC. worriedD. relaxed3. More people killed themselves on the black bridge than on any other bridge probably because ________A. the bridge was very tallB. the bridge was too crowdedC. people didn't like the bridgeD. the color of the bridge was depressing4. In the factory, when the machines are painted orange, the workers will work ________A. worseB. harderC. more slowlyD. more angrily5. Which could be the best title for the passage?A. Cheerful ColorsB. Your Favorite ColorC. The Secret of ColorD. The Color of a Bridge。

直线运动限时训练4一、单选13．[2014·新课标Ⅱ卷] 甲乙两汽车在一平直公路上同向行驶．在t ＝0到t ＝t 1的时间内，它们的v-t 图像如图所示．在这段时间内( )A ．汽车甲的平均速度比乙的大B ．汽车乙的平均速度等于v 1＋v 22C ．甲乙两汽车的位移相同D ．汽车甲的加速度大小逐渐减小，汽车乙的加速度大小逐渐增大14．[2014·全国卷] 一质点沿x 轴做直线运动，其v -t 图像如图所示．质点在t ＝0时位于x ＝5 m 处，开始沿x 轴正向运动．当t ＝8 s 时，质点在x 轴上的位置为( )A ．x ＝3 mB ．x ＝8 mC ．x ＝9 mD ．x ＝14 m15． [2014·广东卷] 图6是物体做直线运动的v t 图像，由图可知，该物体( )A ．第1 s 内和第3 s 内的运动方向相反B ．第3 s 内和第4 s 内的加速度相同C ．第1 s 内和第4 s 内的位移大小不相等D ．0～2 s 和0～4 s 内的平均速度大小相等16.（2014上海）在离地高h 处，沿竖直方向同时向上和向下抛出两个小球，她们的初速度大小均为υ，不计空气阻力，两球落地的时间差为 （ ）（A （B ） （C （D二、双选17． [2014·天津卷] 质点做直线运动的速度—时间图像如图所示，该质点( )A ．在第1秒末速度方向发生了改变B ．在第2秒末加速度方向发生了改变C ．在前4秒内发生的位移为零D ．第3秒末和第5秒末的位置相同18．有关加速度方向的理解，下列说法中正确的是( )A ．由a ＝Δv Δt知，a 的方向与Δv 的方向相同 B ．a 的方向与初速度v 0的方向相同C ．只要a >0，物体就做加速运动D ．a 的方向与初速度的方向相同，则物体做加速运动19.一物体从一行星表面某高处做自由落体运动．自开始下落计时，得到物体离该行星表面的高度h 随时间t 变化的图象如图所示，则( )A ．行星表面重力加速度大小为8 m/s 2B ．行星表面重力加速度大小为10 m/s 2C ．物体落到行星表面时的速度大小为20 m/sD ．物体落到行星表面时的速度大小为25 m/s20．给滑块一初速度v 0使它沿光滑斜面向上做匀减速运动，加速度大小为g 2，当滑块速度大小减为v 02时，所用时间可能是( )A.v 02gB.v 0gC.3v 0gD.3v 02g21．在某一高度以v 0＝20 m /s 的初速度竖直上抛一个小球(不计空气阻力)，当小球速度大小为10 m/s 时，以下判断正确的是(g 取10 m/s 2)( )A ．小球在这段时间内的平均速度大小可能为15 m/s ，方向向上B ．小球在这段时间内的平均速度大小可能为5 m/s ，方向向下C ．小球在这段时间内的平均速度大小可能为5 m/s ，方向向上D ．小球的位移大小一定是20 m。