高一第二次周练A
2021年高一英语上学期第二次周练试卷
2021年高一英语上学期第二次周练试卷词汇知识1.____________(n.)公路;大路2.____________(n.)手提箱;衣箱3.____________(n.)大衣;外套4.____________(n.)十几岁的青少年5.____________(adj.)感激的;表示谢意的6.____________(n.)提示;技巧;尖;尖端;小费;(vt.)倾斜;翻倒7.____________(vt.)交换8.____________(n.)项目;条款9.____________(vi.& vt.)安家;定居;解决→____________(n.)10.____________(vi.& vt.)痊愈;恢复→____________(n.)11.____________(adv.)确实如此;正是;确切地→____________(adj.)12.____________(vi.)不同意→____________ (n.)→____________(反义词)13.____________(n.& vt.)不喜欢;厌恶→____________(反义词)重点短语1.suffer____________ 遭受;患病2.get/be tired____________ 对……厌烦3.pack(sth.)____________ 将(东西)装箱打包4.get ____________with 与……相处;进展5.fall________love 相爱;爱上6.disagree____________sb. 不同意某人的看法7.be grateful____________sb. 感激某人8.join__________ 参加;加入必背句型1.Although I try to talk to my classmates,I still______________________make good friends with them.虽然我十分努力地去跟班上的同学交谈,但我还是发现很难跟他们成为好朋友。
高一英语下学期第二次周练试题_03
于对市爱美阳光实验学校2021—2021下学期高一年级第二次双周练英语试卷【说明】本试卷分为第一卷〔选择题〕和第二卷〔非选择题〕两, 总分值为150, 考试时间为120分钟, 请将第一卷答案写在答题栏中, 第二卷答题直接在卷上作答。
第一:听力〔共两节,总分值30分〕第一节〔共5小题;每题分,总分值分〕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三个选项中选出最正确选项,并标在试卷的相位置。
听完每段对话后,你都有10秒钟的时间来答复有关小题和阅读下一小题。
每段对话仅读一遍。
1.When did Fred leave?A. Before 6:00.B. At 6:00.C. At 6:30.2.What did the man use to be?A. A teacher.B. A cook.C. A driver.3. How does the man feel?A. Surprised.B. Sad.C. Disappointed.4. How does the man suggest going?A. By bus.B. By bike.C. On foot.5. Where are the two speakers?A. In Singapore.B. In Toronto.C. In Los Angeles.第二节〔共15小题;每题分,总分值2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三个选项中选出最正确选项,并标在试卷的相位置。
听每段对话或独白前,你将有时间阅读各个小题,每题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。
听下面一段对话,答复第6和第7两个小题。
6. When does the man want to use the bike?A. Today.B. Yesterday.C. The day after tomorrow.7. Why did Tom regret?A. He wanted to sell the bike.B. He lent it to someone else.C. His parents wanted to use it.听下面一段对话,答复第8和第9两个小题。
2022新教材 高一物理周练试卷(主要内容时间 位移 速度)A 2022
高一物理周练试卷(二)A命题人:林夕 审题:高一物理备课组 总分:100 2022.9.15一、选择题(1~8为单选,9~12为多选,共12题,每小题5分,共60分)1.大雁在迁徙时整个队伍大部分时间实际上都是匀速飞行,这是为了进行长途迁徙而采取的有效措施。
下列说法正确的是( )A .以地面作为参考系,头雁是静止的B .摄影师为了拍摄一张清晰大雁队伍照片,应该以地面做参考系C .若研究“雁阵”从一处飞往另一处的时间,则可以将“雁阵”看做一个质点D .研究头雁扇动翅膀产生的上升气流时,可以将头雁看做质点2.有一个方法可以快速估测闪电处至观察者之间的直线距离,只要测出自观察到闪光起至听到雷声的时间t s ,就能估算出以千米为单位的闪电处至观察者之间的直线距离s 。
已知空气中的声速约为340m/s ,则s 约为( )A .t kmB .3tkm C .2t km D .4t km3.2021年9月17日,搭载着3名航天员的“神舟十二号”载人飞船返回舱在轨三个月后成功着陆,标志着我国空间站运营常态化的开始,也意味着我国是当今世界上唯一拥有独立建设空间站能力的国家。
在下列情况中,可将飞船或核心舱看作质点的是( )A .确定飞船离地球的高度时B .飞船飞行过程中调整姿态时C .飞船与“天和”核心舱进行对接时D .航天员给同学们介绍“天和”核心舱内部情况时4.区间测速是在同一路段上布设两个相邻的监控点,原理是基于车辆通过前后两个监控点的时间来计算车辆在该路段上的平均行驶速度,并依据该路段上的限速标准判定车辆是否超速违章。
图为高速公路的一个交通标志,若一辆汽车以60km/h 的速度驶入测速区间,经5分钟后仍以60km/h 的速度驶离测速区间,则下列说法中正确的是( )A .汽车在该测速区间运行时不可以看成质点B .在该区间汽车的瞬时速度可能达到80km/hC .标志中的“5.3km”指的是位移D .因进出测速区间的速度均未超过60km/h ,该汽车没有超速5.某校举行教职工趣味运动会,其中一项比赛项目——“十米三向折返跑”,活动场地如图所示,AB =AC =AD =10m ,参赛教师听到口令后从起点A 跑向B 点,用手触摸折返线后再返回A 点,然后依次跑向C 点、D 点,最终返回A 点。
高一年级数学第二次周练试卷
第1页/(共2页) 第2页/(共2页)2020届高一下学期数学第二次周考试题一、选择题:(本大题共10小题,每小题5分,共50分.)1.等比数列{}n a 的前n 项和为n S ,已知3215109S a a a =+= ,,则1( )a =A.19 B. 19- C. 13 D. 13- 2.已知等比数列前n 项和为S n ,若244,16S S ==,则8( )S = A.160 B.64 C.-64 D. -1603. 已知等比数列{}n a 的前n 项和为n S ,若321440a a a -+=,则84SS =()A. 17B. 18C. 19D. 20 4. 在等比数列{}n a 中,已知前n 项和1=5n n S k ++则k 的值为( ) A. -1 B. 1 C. -5 D. 5 5. 已知{}n a 为等比数列, 472a a +=,568a a =-,则110a a +=( )A. 7B. 5C. 5-D. 7-6.在等比数列{}n a 中,若78910158a a a a +++=,8998a a ⋅=-,则789101111a a a a +++=() A. 53 B. 53- C. 56 D. 56-7.已知数列{}n a 的前n 项和为n S ,11a =,12n n S a +=,,则n S =( )A .12-n B .121-n C .1)32(-n D .1)23(-n8. 等差数列{a n }中,15,a =-,它的前11项的平均值是5,若从中抽取1项,余下的10项的平均值是4,则抽取的是( )A. a 11B. a 10C. a 9D. a 89. 已知正项数列{}n a 满足221120n n n n a a a a ++--=,设121log n n ab a +=,则数列{}n b 的前n 项和为( ) A. n B.()12n n - C.()12n n + D.()()122n n ++10. 已知数列{}n b 为等比数列,且首项11b =,公比2q =,则数列{}21n b -的前10项的和为( )A.()94413- B. ()104413- C. ()91413- D. ()101413- 二、填空题(本大题共4小题,每小题5分,共20分.)11. 已知数列{a n },满足111n n a a +=-,若112a =,则a 2009=________________.12. 三个数成等比数列,他们的和为14,积为64,这三个数依次排列为_______________.13.已知{}n a 是等比数列,其中18,a a 是关于x的方程22sin 0x x -α-α=的两根,且21836()26a a a a +=+,则锐角α的值为_______________.14. 已知{}n a 与{}n b 是两个公差为1的等差数列,它们的首项和分别为1a 和1b ,且1b N +∈若120162a b +=-,设(),n b c a n N +=∈则数列c 的通项公式为________________.11. 12.___________ 13. 14.___________ 三、解答题:(本大题共2小题每题15分.解答应写出文字说明,证明过程或演算步骤.) 15. 已知数列的{}n a 前n 项和为n S ,满足11a =,125n n n S S a +=++.(1)证明:{}5n a +是等比数列; (2)若5128n S n +>,求n 的最小值.16. 已知数列{}n a 是等差数列,且12a =,12312a a a ++=.⑴ 求数列{}n a 的通项公式; ⑵ 令nn n b a =⋅3*(N )n ∈,求数列{}n b 的前n 项和.。
2013-2014学年高一数学上学期第二次周练试题及答案(新人教A版 第162套)
高一数学周练二1.已知集合}1,1{-=A ,}1|{==mx x B ,且A B A =⋃,则m 的值为 ( )A .1B .—1C .1或—1D .1或—1或0 2.设集合{}21<≤-=x x M ,{}0≤-=k x x N ,若M N M =,则k 的取值范围( )(A )(1,2)- (B )[2,)+∞ (C )(2,)+∞ (D)]2,1[-3.如图,U 是全集,M 、P 、S 是U 的3个子集,则阴影部分所表示的集合是 ( )A 、 ()MP S B 、 ()M P S C 、 ()u MP C S D 、 ()u M P C S4.设{}022=+-=q px x x A ,{}05)2(62=++++=q x p x x B ,若⎭⎬⎫⎩⎨⎧=21B A ,则=B A ( )(A )⎭⎬⎫⎩⎨⎧-4,31,21 (B )⎭⎬⎫⎩⎨⎧-4,21 (C )⎭⎬⎫⎩⎨⎧31,21 (D)⎭⎬⎫⎩⎨⎧215.函数y =的定义域为( )A 、(],2-∞ B 、(],1-∞ C 、11,,222⎛⎫⎛⎤-∞ ⎪ ⎥⎝⎭⎝⎦ D 、11,,222⎛⎫⎛⎫-∞ ⎪⎪⎝⎭⎝⎭6. 设{}{}I a A a a =-=-+241222,,,,,若{}1I C A =-,则a=__________。
7.已知集合A ={1,2},B ={x x A ⊆},则集合B= .8.已知集合{}{}A x y y xB x y y x ==-==()|()|,,,322那么集合AB =9.50名学生做的物理、化学两种实验,已知物理实验做的正确得有40人,化学实验做的正确的有31人,两种实验都做错的有4人,则这两种实验都做对的有 人.10.已知集合{}{}A a a d a dB a aq aq =++=,,,,,22,其中a ,d ,q R ∈,若A=B ,求q 的值。
11.已知全集U={}22,3,23a a +-,若A={},2b ,{}5U C A =,求实数的a ,b 值 12.若集合S={}23,a ,{}|03,T x x a x Z =<+<∈且S ∩T={}1,P=S ∪T,求集合P 的所有子集13.已知集合A={}37x x ≤≤,B={x|2<x<10},C={x | x<a },全集为实数集R.(1) 求A ∪B ,(C R A)∩B ;(2) 如果A ∩C ≠φ,求a 的取值范围。
高一英语二次周练
夏邑一高2013-2014学年度下学期第二次周练高一英语试题(A卷)第二部分:英语知识运用(共二节,满分45分)第一节:单项填空(共15小题;每小题1分,满分15分)21.Dragon Boat Festival in China is held in memory of the famous poet, Qu Yuan.A. /; /B. The; theC. The; aD. The; /Only Edward can lift that heavy stone because he is a man with great.A. forceB. sizeC. powerD. strength— Hello, Mr. Wang. Must we wear the school uniforms tomorrow?—You• Only on Mondays. Tomorrow is Tuesday.A. don't have toB. mustn'tC. should have toD. mustMr. Lee hasn't arrived. But ifs already 9 o'clock. He should at any time.A. bring upB. turn upC. look upD. pick upMy doctor suggests that I should eat food that is easy.A. being digestedB. to be digestingC. to digestD. digesting一Oh, Kate! Glad to see you again. It my pleasure to see you here.—Me, too.A. adds inB. adds upC. adds toD. adds up toIt seems that Peter's sister is a(n)lady, for she always works more than 12 hours a day.A. confidentB. sensitiveC. energeticD. livelyThe professor has just finished writing a book and it before long.A. will publishB. will be publishedC. publishesD. is publishedThough of the danger of hiking in such weather, the young men still wouldn't give up their plan.A. remindingB. remindedC. being remindedD. having remindedRather than in the crowded bus, they preferred homeA. to ride , walkB. riding , walkingC. ride , to walkD. ride, walk1 can't afford to buy that pair of shoes this month. There*s a limit how much money Pm prepared tospend.A. toB. withC. atD. aboutMr. Smith is a teacher. He is a friend as well. We all respect him.A. other thanB. more thanC. less thanD. rather than— Do you think the film is good?— Terrific!A. It couldn't be better.B. It could be better.C. It is still better.D. It couldn't be worse.32.After 10 years of hard work, the lady has turned into a movie star,she dreamed of becoming in her childhood.A. whoseB. whatC. thatD. whichDo remember to give the remaining books to needs them badly.A who B. whoever C. whomever D. whom第二节:完形填空(共20小题;每小题L5分,满分30分)阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中,选出最佳选项。
2021年高一上学期第二次周练 英语试题 含答案
2021年高一上学期第二次周练英语试题含答案阅读理解AA famous doctor once received a little child who was badly ill. Thanks to his skill and care, his young patient got well and was soon able to get up and run about again.The child's mother was very much obliged(感谢的)to the doctor, and she called on him to thank him for what he had done for her child. "Doctor," she said, "you have saved my little son. I don't know how to thank you enough. I feel that money alone cannot repay you, so I have made this little purse with my own hands, as a sign of my gratitude. I hope you will accept it." The doctor stood up and said coldly, "Madam, a little present like that is very nice between friends, but a doctor needs to be paid properly for what he has done." The lady was so surprised and hurt so much that she could not reply for a moment. Then she said quietly, "Perhaps you will tell me how much your fee is?""Fifty pounds", he answered.The lady opened the little purse and took out four fifty-pound bank notes. She handed one of them to the doctor, and put the other three back into the purse. She put the purse into her handbag and, saying good bye to the doctor, went out of the room.1. The lady was thankful to the doctor because ________.A. he had saved her lifeB. he had saved her son's lifeC. he had lent her some moneyD. he often called on her2. The doctor refused the lady's purse because he thought ______.A. the purse should be given between friendsB. the purse was too smallC. the lady was not kind to himD. the lady just gave him that purse and wouldn't give him the medical fee3. What the doctor said ______ the lady.A. worriedB. interestedC. frightenedD. hurt4. The money in the purse _______.A. was only 150 poundsB. was less than 200 poundsC. was much more than the medical feeD. was not enough for the medical fee5. How do you think the doctor would feel in the end?A. sorry and worriedB. regretful and proudC. excited and proudD. sorry and regretfulBHarry is eighteen now. He studies in a middle school. His parents like him very much and hope he can bee a famous man. So they often tell him to study hard and they do all for him. They call him atsix in the morning, after breakfast his father takes him to school in a car and in the afternoon, as soon as the young man es back, the supper is ready. Of course, he never washes his clothes or goes to buy something in the shops.Once Harry’s father was sent to London on business. He would stay there for half a year. Leaving, he told his wife to take good care of their son. The woman had to get up earlier and did all what her husband did before. And two months later she was so tired that she was ill in bed. Now the young man got into trouble. He couldn’t do any housework. He had to do as his mother told him. Even he didn’t know where to get on the bus!Yesterday Harry’s mother found his shoes were worn out and told him to buy a new pair in the shop. But he didn’t know how to choose. The woman had a sigh(叹息) and gave him a shoe pattern(鞋样) and told him to buy a pair of shoes himself. It’s Saturday today a nd Harry doesn’t go to school. With a policeman’s help, he found a shop. The shopkeeper was friendly to him. The man brought a lot of shoes and asked him to choose. When he was trying on a pair, suddenly he remembered something and took them off. The man was surprised and asked, “What’s the matter, young man?”“I’m sorry, I’ve left the shoe pattern at home!”6. _______ always does some housework in the morning.A. Harry’s fatherB. Harry’s motherC. HarryD. Nobody7. Harry’s parents do all instead of him because _______.A. he’s too youngB. he has poor healthC. he’s busy with his studiesD. they hope he spends all time on studies8. The woman had to look after her son by herself because _______.A. her husband wasn’t at homeB. she was stronger than her husbandC. she knew the young man wellD. she was freer than her husband9. When the man was in London, _______.A. Harry had to stay at homeB. Harry couldn’t find the bus stopC. Harry fell behind in his classD. Harry wouldn’t go to school10 We can infer from the passage that _______.A. Harry wanted his mother to buy shoes for himB. Harry didn’t believe himselfC. Harry wouldn’t listen to his motherD. Harry was strong enough to buy shoes for himselfCIn the rush to get to school, you drop a piece of toast on the floor. Do you throw it away or decide it’s still OK to eat? If you’re like most people, you eat it. maybe you follow the “5-second rule”, which claims foods are safe to eat if you pick them up within 5 seconds after dropping them. but you might want to think again. Scientists now say that 5 seconds is all it takes for foods to bee polluted with enough bacteria(细菌)to make you sick.Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing, you can bee sick.One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year.Salmonella is often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly.But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment. First, they placed an amount of Salmonella on three surfaces; wood, tile (瓦片), and carpet. They placed a piece of bread and a piece of bologna(大腊肠)on each surface for 5,30, or 60 seconds. After just 5 seconds, both the bread and the bologna picked up enough bacteria to make you sick.So, forget the 5-second rule. If your toast drops on the floor, throw it away and get another piece of clean toast. This time, be careful not to drop it!11.In which part of a newspaper can you most probably find this passage?A.Culture. B.Health. C.Advertisement. D.Technology.12.After dropping a piece of toast, a person who follows the “5-second rule”will . A.throw away dirty toast immediately and go awayB.pick up the toast as quickly as possible and eat itC.eat the toast within 5 seconds and feel pleasedD.get another piece of clean toast quickly and eat it13.The underlined word “raw”in Paragraph 3 most probably means “”A.delicious B.hot C.Cheap D.uncooked14.The scientists in South Carolina did the experiment to .A.see how quickly bacteria can pollute foodB.show that the 5-second rule is correctC.see how harmful bacteria are to people’s healthD.show that bacteria grow at different speeds on different foods15..What’s the writer’s attitude to the “5-second rule”A. Positive(积极、赞成)B. Negative(消极、反对)C. ActiveD. Cautious(谨慎)DMan is a land animal, but he is also closely tied to the sea. Throughout history the sea has served the needs of man. The sea has provided man with food and a convenient way to travel to many parts of the world. Today, nearly two-thirds of the world’s population liv e within 80 kilometers of the sea coast.In the modern technological world, the sea offers many resources to help mankind survive. Resources on land are beginning to be used up. The sea, however, still can be hoped to supply many of man’s needs.The list of riches of the sea yet to be developed by man’s technology is impressive. Oil and gas explorations have been carried out for nearly 30 years. Valuable amounts of minerals(矿物质)exist on the ocean floor ready to be mined.Fish farming promises to be a good way to produce large quantities of food. The culture of fish and shellfish is an ancient skill practiced in the past mainly by Oriental people.Besides oil and gas, the sea may offer new sources of energy. Experts believe that the warm temperature of the ocean can be used in a way similar to the steam in a steamship. Ocean currents (洋流)and waves offer possible use as a source of energy.Technology is enabling man to explore ever more deeply under the sea. The development of strong, new materials has made this possible.The technology to harvest the sea continues to improve. Experts believe that by the year xxthe problems that prevent us from exploiting fully the food, minerals, and energy sources of the sea will be largely solved.16. The major things that the sea offers man are ______.A. fish and oilB. minerals and oilC. warm temperature and ocean currentsD. the food, energy sources, and minerals17. The sea serves the needs of man because ______.A. in provides man with foodB. it offers oil to manC. it supplies man with mineralsD. all of the above18. We can conclude from this passage that ______.A. the sea resources have largely been used upB. the sea, in the broad sense, has not yet been developedC. the problems that prevent us from using the food, minerals, and energy sources of thesea have already been solved.D. by the year xx , the technology will be good enough to exploit all the sea resources19 The underlined words “Oriental people” in the fourth paragraph probably mean ______.A. the people in AsiaB. African peopleC. European peopleD. American people20. The best title for this passage is ______.A. Sea HarvestB. Sea FoodC. Technology for Exploiting the SeaD. Man and the Sea•z26562 67C2 柂!32367 7E6F 繯25307 62DB 招35577 8AF9 諹24499 5FB3 徳24052 5DF4 巴20034 4E42 乂G。
人教A版高中数学必修五高一下周练二.docx
实验高中高一数学周练二班级: 姓名: 组别: 得分:一、选择题1.在△ABC 中,a =10,B =60°,C =45°,则c =( ) A .10+ 3 B .10(3-1) C .10(3+1) D .10 3 2.在△ABC 中,若AB =3,B =30°,AC =1,则△ABC ( ) A .无解 B .仅有一解C .仅有两解 D .无法判断 3.在钝角三角形ABC 中,若sin A <sin B <sin C ,则( ) A .cos A ·cos C >0 B .cos B ·cos C >0 C .cos A ·cos B >0 D .cos A ·cos B ·cos C >0 4.在△ABC 中,下列关系式中一定成立的是( )A .a >b sin AB .a =b sin AC .a <b sin AD .a ≥b sin A 5.在△ABC 中,a =1,A =30°,C =45°,则△ABC 的面积为A.22B.24C.32 D.3+146.在△ABC 中,已知a 2tan B =b 2tan A ,则此三角形是( ) A .锐角三角形 B .直角三角形C .钝角三角形D .直角或等腰三角形 7.在△ABC 中,由已知条件解三角形,其中有两解的是( ) A .b =20,A =45°,C =80° B .a =30,c =28,B =60° C .a =14,b =16,A =45° D .a =12,c =15,A =120°8.在△ABC 中,若cos A a =cos B b =sin Cc ,则△ABC 是( ) A .有一内角为30°的直角三角形 B .等腰直角三角形C .有一内角为30°的等腰三角形D .等边三角形 9.钝角三角形的三边为a 、a +1、a +2,其最大角不超过120°,则a 的取值范围是( )A .0<a <3 B.32≤a <3 C .2<a ≤3 D .1≤a <52 10.在△ABC 中,角A 、B 、C 所对的边分别为a 、b 、c .若a cos A =b sin B ,则sin A cos A +cos 2B =( )A .-12 B.12 C. -1 D. 1题号 1 2 3 4 5 6 7 8 9 10 答案二、填空题11.已知△ABC 外接圆半径是2 cm ,∠A =60°,则BC 边长为__________.12.在△ABC 中,a 、b 、c 分别是∠A 、∠B 、∠C 所对的边.若∠A =105°,∠B =45°,b =22,则c =______. 13.在△ABC 中,a +b =12,A =60°,B =45°,则a =________.14.在△ABC 中,a :b :c =2:4:5,则sin A -sin Bsin C 的值为________.15.在△ABC 中,若a cos A 2=b cos B 2=ccos C 2,则△ABC 一定是________三角形. 三、解答题 16.在△ABC 中,若sin A =2sin B cos C ,且sin 2A =sin 2B +sin 2C ,试判断三角形的形状.17.在△ABC 中,已知b =2,c =1,B =45°,求a 、A 、C .18.在△ABC 中,求证:a -c cos B b -c cos A =sin Bsin A.19.在△ABC 中,内角A 、B 、C 的对边长分别为a 、b 、c ,已知a 2-c 2=2b ,且sin B =4cos A sin C ,求b .20. 在△ABC 中,cos 2A2=b +c2c (a 、b 、c 分别为角A 、B 、C 的对边),试判断△ABC 的形状.21.在△ABC 中,sin(C -A )=1,sin B =13.(1)求sin A 的值;(2)设AC =6,求△ABC 的面积.高一数学周练四详解答案1[答案]B. A =75°,sin A =sin(30°+45°)=sin30°cos45°+cos30°sin45°=6+24,c =a sin C sin A =10×sin45°sin75°=10(3-1). 2[答案] C.如图,AD =AB ·sin B =3sin30°=32<1<3,∴此三角形有两解.3[答案] C.由正弦定理得,a <b <c ,∴角C 是最大角,∴角C 为钝角,∴cos C <0,cos A >0,cos B >0.4[答案] D.由正弦定理得,a sin A =b sin B ,∴a =b sin Asin B ,在△ABC 中,0<sin B ≤1,故1sin B ≥1,∴a ≥b sin A .5[答案] D. c =a sin Csin A =2,B =105°,sin105°=sin(60°+45°)=sin60°cos45°+cos60°sin45°=6+24,∴S △ABC =12ac sin B =3+14.6[答案] D.由正弦定理得: sin 2A ·sin B cos B =sin 2B ·sin A cos A ∴sin A cos A =sin B cos B .∴sin2A =sin2B ,∴2A =2B 或2A =π-2B ,∴A =B 或A +B =π2. 7[答案] C.解法一:A 中已知两角及一边有唯一解;B 中已知两边及夹角,有唯一解;C 中,b sin A =82<14=a <b 有两解;D 中,A 是最大角,但a <c ,∴无解.解法二:由a =14,b =16,A =45°及正弦定理得,sin B 16=sin45°14,所以sin B =427,因为a <b ,A =45°,所以角B 有两解. [点评] 由正弦定理确定三角形的边角时,要注意大角对大边等性质的限制作用.既不能漏解,也不能多解.8[答案] B.由正弦定理得,cos A sin A =cos B sin B =sin Csin C =1,∴sin(A -B )=0,∵A 、B 为△ABC 的内角,∴A =B ,由sin B b =sin C c =cos Bb 得sin B =cos B ,∴B =45°,∴A =B =45°.9[答]B [分析]钝角三角形最大角α不超过120°,则90°<α≤120°,∴-12≤cos α<0.[解析] ∵三角形为钝角三角形,最大边长为a +2,则2221201(1)(2)22(1)a a a a a a a a ++>+⎧⎪<++-+⎨-≤⎪+⎩解得:32≤a <3,故选B. 10[答案] D.∵a cos A =b sin B ,∴sin A cos A =sin 2B =1-cos 2B ,∴sin A cos A +cos 2B =1.11[答案] 23cm.∵BCsin A =2R ,∴BC =2R sin A =4sin60°=2 312[答案] 2. C =180°-105°-45°=30°.根据正弦定理bsin B =c sin C 可知22sin45°=csin30°,解得c =2. 13[答案] 36-126.由正弦定理得,asin60°=12-a sin45°, 解之得a =36-12 6.14[答案]-25.∵a :b :c =2:4:5,∴b =2a ,c =52a .由正弦定理得sin B =2sin A ,sin C =52sin A ,∴sin A -sin B sin C =sin A -2sin A 52sin A =-25.[点评] 应用正弦定理解题时,可以化边为角,也可以化角为边.本题中,∵a b c =,∴b =2a ,c =52a ,将待求式应用正弦定理变形,sin A -sin B sin C =a -b c =a -2a 52a=-25.15[答案]等边.由正弦定理得,sin A cos A 2=sin B cos B 2=sin Ccos C 2,∴sin A 2=sin B 2=sin C 2,∵0<A ,B ,C <π,∴0<A 2,B 2,C 2<π2, ∴A 2=B 2=C2,∴A =B =C .16[解析]∵A 、B 、C 是三角形的内角,∴A =π-(B +C ), ∴sin A =sin(B +C )=sin B cos C +cos B sin C =2sin B cos C .∴sin B cos C -cos B sin C =0,∴sin(B -C )=0,又∵0<B <π,0<C <π,∴-π<B -C <π,∴B =C .又∵sin 2A =sin 2B +sin 2C , ∴a 2=b 2+c 2,∴A 是直角,∴△ABC 是等腰直角三角形.17[解析] 由正弦定理得, sin C =c sin B b =1×222=12,由c <b ,B =45°,可知C <45°,∴C =30°. ∴A =180°-30°-45°=105°,再由正弦定理得, a =b sin A sin B =2sin105°sin45°=6+22,所以a =6+22,A =105°,C =30°.18 [解析] a -c cos B b -c cos A =sin A -sin C cos Bsin B -sin C cos A=sin (180°-B -C )-sin C cos B sin (180°-A -C )-sin C cos A=sin (B +C )-sin C cos B sin (A +C )-sin C cos A=sin B cos C +cos B sin C -sin C cos B sin A cos C +cos A sin C -sin C cos A =sin B cos C sin A cos C =sin B sin A . ∴原等式得证.19. [解析] 由余弦定理得a 2-c 2=b 2-2bc cos A ,又a 2-c 2=2b ,b ≠0,所以b =2c cos A +2①由正弦定理得b c =sin Bsin C ,又由已知得sin Bsin C =4cos A ,所以b =4c cos A .② 故由①,②解得b =4.20.[解析] 法一:在△ABC 中,cos 2A 2=b +c 2c ,∴1+cos A 2=b 2c +12,∴cos A =b c .又由余弦定理知cos A =b 2+c 2-a 22bc , ∴b 2+c 2-a 22bc =bc ,∴b 2+c 2-a 2=2b 2,∴a 2+b 2=c 2. ∴△ABC 是以C 为直角的直角三角形.法二:由解法一知cos A =b c ,由正弦定理得cos A =sin Bsin C . 又∵A +B +C =180°,∴sin C cos A =sin(A +C ), ∴sin C cos A =sin A cos C +cos A sin C ,∴sin A cos C =0, ∵A 、C 是△ABC 的内角,∴sin A ≠0. ∴只有cos C =0,∴C =90°,∴△ABC 是以C 为直角的直角三角形.21.[解析] (1)由sin(C -A )=1,-π<C -A <π,知C =A +π2.又∵A +B +C =π,∴2A +B =π2,即2A =π2-B,0<A <π4.故cos2A=sin B,即1-2sin2A=13,sin A=33.(2)由(1)得cos A=6 3.又由正弦定理得,BC=AC sin Asin B=3 2.∴S△ABC=12·AC·BC·sin C=12AC·BC·cos A=3 2.。
高一英语第2周周训练题高一全册英语试题
于对市爱美阳光实验学校一中高2021级第2周英语试题一.完形填空Perhaps the most interesting person I have ever met is an Italian professor of philosophy who teaches at the University ofPisa. 1 I last met this man eight years ago, I have not forgotten his 2 qualities. First of all, I respectedhis 3 to teaching. Because his lectures were alwayswell-prepared and clearly delivered, students crowded into his classroom. His followers liked the fact that he 4 what he taught Further more, he could be counted on to explain his ideas inan 5 way, introducing such aids (辅助) to 6 as oil paintings, music, and guest lecturers. Once he 7 sang a song in class in order to make a point clear. 8 , I admired the fact that he would talk to students outside the classroom or talk with them 9 the telephone. Drinking coffee in the cafe, he would easily make friends with students. Sometimes he would 10 a student to a game of chess (象棋) 11 he would join student groups to discuss a variety of 12 : agriculture, diving and mathematics. Many young people visited him in his officefor 13 on their studies; others came to his home for social evenings. Finally, I was 14 by his lively sense of humor. He believed that no lesson is a success 15 , during it, the students and the professor 16 at least one loud 17 . Through his sense of humor, he made learning more 18 and more lasting, If it is 19 that life makes a wise man smile and a foolish man cry, 20 my friend is indeed a wise man.1. A. Although B. When C. Even ifD. Now that2. A. basic B. special C. commonD. particular3. A. attention B. introduction C. relation D. devotion4. A. insisted on B. talked about C. believed in D. agreed with5. A. imaginative B. ordinary C.opposite D. open6. A. listening B. understanding C.information D. discovery7. A. also B. nearly C.even D. only8. A. Later B. Secondly C. However D. Therefore9. A. with B. by C. from D. on10. A. invite B. lead C. prefer D. show11. A. As a matter of fact B. Later on C. Other times D. In general12. A. questions B. subjects C. mattersD. contents13. A. support B. explanation C. experienceD. advice14. A. disturbed B. moved C. attracted D. defeated15. A. for B. until C. since D. unless16. A. hear B. suggest C. shareD. demand17. A. laugh B. cry C. shout D. question18. A. helpful B. enjoyable C. practicalD. useful 19. A. natural B. normal C. hopeful D.true20. A. so B. for C. then D. yet二.阅读理解One evening after dinner, Mr. and Mrs. Tisich called a family meeting. “We’ve had to make a difficult decision,〞 Mr. Tisich announced. “You see, your mother has been offered a post as co-director of a television station in Chicago. Unfortunately, the station is not here. After thinking long and hard about it, we’ve concluded that the right decision is to move to Chicago.〞Marc looked shocked, while his sister Rachel breathlessly started asking when they’d be moving. “It’s surprising, but exciting!〞 she said. Marc simply said, “We can’t go—I can’t leave all my friends. I’d rather stay here and live with Tommy Lyons!〞The Tisichs hoped that by the time they moved in August, Marc would grow more accustomed to the idea of leaving. However, he showed no signs of accepting the news, refusing to pack his belongings.When the morning of the move arrived, Marc was nowhere to be found. His parents called Tommy Lyons’ house, but Mrs. Lyons said she hadn’t seen Marc. Mrs. Tisich became increasingly concerned, while her husband felt angry with their son for behaving so irresponsibly.What they didn’t know was that Marc had started walking over to Tommy’s house, with a faint idea of hiding in Lyons’ attic(阁楼) for a few days. But something happened on the way as Marc walked past all the familiar landscape of the neighborhood: the fence that he and his mother painted, the tree that he and his sister used to climb, the park where he and his father often took evening walks together. How much would these mean without his family, who make them special in the first place? Marc didn’t take the time to answer that question but instead hurried back to his house, wondering if there were any moving cartons(纸板箱)the right size to hold his record collection.21. The conflict in this story was caused by___________.A. Marc and Rachel’s different tempersB. a quarrel between Tommy Lyons and MarcC. Marc’s disagreement with his parents about their moveD. Mr. and Mrs. Tisich’s remark of Marc’s irresponsibility22. Marc and Rachel’s reactions to the move were similar in the way that both were____________A. surprisedB. angry and upsetC. anxious for more detailsD. worried about packing23. The reason for Marc’s going home was that _________________.A. he did not want to be left behindB. he realized his family was essential to himC. he hoped to reach an agreement with his parentsD. he wished to be a more responsible person24. What would most likely happen next?A. Marc would bring his records over to the Lyons’s house.B. Mr. and Mrs. Tisich would call the police.C. Marc would join his family for house moving.D. Mr. and Mrs. Tisich would start searching for Marc.三.改错:One afternoon, when I was on my way home, a sky changed suddenly. Dark clouds were gathered. I began to feel worried because I didn’t have both a raincoat or umbrella about me. It soon started to rain. Just as I was hurrying home, I heard someone call me from behind. I turned to have a look and find that he was Liu Wei, a good neighbour of mine. He offered to share his umbrella with me. We walked all the ways home. With Liu Wei’s help, I would have got wet to the skin. How much thankful I was for his help!2021级英语学科第2周周训练题参考答案:1-5 ABDCA6-10 BCBDA11-15 CBDCD16-20 CABDC21-24 CABC短文改错练习1.a- the2. gathered-gathering3.both-either4. or ^umbrella-an5.call- calling6. find-found7.he-it8.ways-way9.with-without10.much(去掉)。
高中数学 第二次周练试题 新人教A版必修1高一.doc
高一数学第二次周练试题选择题(共5小题,每题8分)1. 函数0(12>-=-a ay x 且1)a ≠的图象必经过点( ) A 、(0,1) B 、(1,1) C 、(2,2) D 、(2,0) 2 下面说法错误的是: ( )A 多面体至少有四个面B 九棱柱有9条侧棱,9个侧面,侧面为平行四边形C 长方体,正方体都是棱柱D 三棱柱的侧面为三角形 3 下面几何体中,,过轴的截面一定是圆面的是( ) A 圆柱 B 圆锥 C 球 D 圆台 4 已知f(x)是偶函数,它在[)∞+.0上是减函数,若)1()(lg f x f >,则x 的取值范围是( )A ⎪⎭⎫⎝⎛1,101 B ()+∞⎪⎭⎫ ⎝⎛,1101,0Y C ⎪⎭⎫⎝⎛10,101 D ()()+∞,101,0Y 5 ..某商场对顾客实行购物优惠活动,规定一次购物付款总额: (1)如果不超过200元,则不给予优惠;(2)如果超过200元但不超过500元,则按标价给予9折优惠;(3)如果超过500元,其500元内的按第(2)条给予优惠,超过500元的部分给予7折优惠.某人两次去购物,分别付款168元和423元,假设他一次性购买上述 两次同样的商品,则应付款是 A.413.7元 B.513.7元 C.546.6元 D.548.7元二 选择题(共4小题,每题8分)6、方程04lg =+-x x 的实数解的个数:__________7、若集合A 满足{}{},,,,a b A a b c d ⊆⊆,则所有满足条件的集合A 的个数是__________ 8、函数223y x kx =+-在区间[)+∞,2上具有单调性,则实数k 的取值范围是__________9. 已知函数f(x)=12++mx mx 的定义域是一切实数,则m 的取值范围是__________填空题6_________ 7 ___________ 8 __________ 9 __________三 解答题10(12分)(1)化简347625-+-(2)已知45log ,518,9log 3618表示用b a a b==11(16分). 已知函数1()21x f x a =-+.(1)求证:不论a 为何实数()f x 总是为增函数;(2)确定a 的值, 使()f x 为奇函数;(3)当()f x 为奇函数时, 求()f x 的值域.。
高一英语上学期第二次周练试题高一全册英语试题
于对市爱美阳光实验学校高一英语周练二Ⅰ. 语境填词1.She was ________(心烦意乱的)about her mother’s death,so we should first do everything in our ________(能力)to ________(使镇)her down.2.________________(在黄昏时刻),his friends were playing________(在户外)while the little boy hid himself behind the ________(窗帘)and looked out through the ________(积满灰尘的)window.3.Her ________(者)made a suggestion but she ________(不理睬)it ________(完全地).Ⅱ.选词填空have got to,be concerned about,go through,set down,a series of,on purpose,not ...any longer,hide away1.There has been ____________________ car accidents at the crossing.2.It’s getting dark.I ________________________ be off now.3.Most teachers ________ greatly __________________ the growth of their students.4.I’m sorry.I didn’t do it ________________.5.Please ________________ what he said on this paper.6.He does ________ work here ________________.7.The thief ________________ in a friend’s house for several weeks after the robbery.8.This old soldier ________________ a lot of wars.Ⅲ.词义辨析1.用calm,quiet,silent或still填空(1)Stay ________ while I take photos of you.(2)The sea was ________ now,not rough at all.(3)They lived a ________ life in the countryside.(4)You’d better be ________ about what’s happened.2.用in order to,so as to,in order that或so that填空(1)________________________ keep fit,he runs every morning.(2)The speaker raised his voice ________________________________ be heard by all.(3)You’d better check carefully________________________________________ any mistakes will be caught.(4)________________________ improve his English,he does more and more reading and writing now.3.用power,strength,force或energy填空(1)The dying man gathered his ____________ to turn over.(2)I’m afraid it is beyond my ________ to do what you’re asking.(3)Old as he is,he is full of ________.(4)We should use military(事的)________ in this situation.(5)As we all know,knowledge is ________.Ⅳ.单项填空1.Please ________ the number and I’m sure they will ________more than 1000.A.add;add up B.add up;add upC.add up;add up to D.add;add to2.I wanted to have a word with her,but she ________ me and went away.A.calmed B.saw C.ignored D.told3.The reporter decided to make a ______ interview with the sportsman who won the first gold medal.A.face-to-face B.face to faceC.face-in-face D.face in face4.Which of the following is wrong?A.The bad news upset me.B.The bad news made me upset.C.The bad news upsetted me.D.I was upset by the bad news.5.Follow your doctor’s advice,______ your cough will get worse.A.or B.and C.then D.so6.—Do you know the most ancient city in China—Xi’an well?—No,this is the first time I ________ here.A.came B.have beenC.am coming D.come7.The little girl ______ go out in the evening.A.dares not B.dares not toC.dare to D.doesn’t dare8.It was in 1969 ______ two Americans went to the moon by spaceship.A.that B.before C.when D.since9.Jane is so interested in the computer that she likes everything ________ it.A.like B.such as C.doing with D.to do with10.Class is beginning.Will you please get the blackboard ________.A.to clean B.cleaning C.cleaned D.having cleanedⅤ.完形填空FriendshipTwenty-one years ago,my husband gave me Sam,an eight-week-old dog,to help me ease the loss of our ter my husband and I moved from New York to New Jersey where our neighbor,whose cat had __1__ had kittens,asked us if we would like one.We were afraid that Sam would not be __2__,but we made up our __3__ to take a kitten.We picked a little,gray,playful cat.She __4__ around running after imaginary mice and squirrels and jumped from table to chair very __5__,so we named her Lightning(闪电).At __6__,Sam and Lightning were not close to each other.But slowly,as the days went on,Lightning started __7__ Sam.They slept together,ate together and played together.When I took __8__ one out of the house,the other was always __9__ by the door when we returned.That was the __10__ it was for years.Then,without any __11__,Sam suddenly died of a weak heart.This time,there was no Sam for Lightning to greet and no way to __12__ why she would never see her friend again.In the __13__ that followed,Lightning seemed heartbroken.She could not __14__ me in words that she was __15__,but I could see the pain and __16__ in her eyes whenever anyone opened the front door.The weeks __17__ by,and the cat’s sorrow seemed to be lifting.One day as I walked into our living room,I __18__ to have a look at the floor next to our sofa __19__ we had a sculptured replica(雕塑复制品)of Sam that we had bought a few years before.Lying next to the statue,one arm wrapped around the statue’s neck,was Lightning,sleeping with her best __20__. 1.A.recently B.lastly C.firstly D.never2.A. sad B.excited C.disappointed D.glad3.A.minds B.hearts C.heads D.brains4.A.walked B.climbed C.raced D.hid5.A.slowly B.quickly C.carefully D.bravely6.st B.noon C.night D.first7.A.leaving B.following C.hating D.catching 8.A.neither B.both C.either D.any9.A.waiting B.sleeping C.crying D.barking10.A.road B.path C.way D.street11.A.words B.diseases C.fear D.warning12.A.talk B.explain C.think D.write13.A.days B.weeks C.seasons D.years14.A.express B.tell C.report D.missing15.A.enjoying B.doing C.suffering D.missing16.A.disappointment B.anger C.gathered D.fun17.A.came B.went C.gathered D.walked18.A.seemed B.appeared C.happened D.meant19.A.what B.which C.that D.where20.A.friend B.enemy C.sofa D.chair答案:Ⅰ.1.upset;power;calm 2.At dusk;outdoors;curtain;dusty 3.partner;ignored;entirelyⅡ.1.a series of 2.have got to 3.are;concerned about 4.on purpose 5.set down 6.not;any longer 7.hid away 8.went through Ⅲ.1.(1)still (2)calm (3)quiet (4)silent2.(1)In order to (2)in order to/so as to (3)so that/in order that (4)In order to3.(1)strength (2)power (3)energy (4)force (5)powerⅣ.1.C 2.C 3.A 4.C 5.A 6.B 7.D 8.A 9.D 10.CⅤ.1.A 2.D 3.A 4.C 5.B 6.D 7.B 8.C 9.A 10.C 11.D 12.B 13.A 14.B 15.C 16.A 17.B 18.C 19.D 20.A。
高一英语下学期第二次周练试题
纯纱州纳纲市驳纵学校高一下学期第二次周练英语试题Ⅰ.品句填词1.The president makes a general ________(调查)of the present situation.2.Every year,there are lots of ________(旅游者)seeing sights.3.That man is always ________(打搅)me to lend him money.4.As the bus ________(接近)the village,they cheered immediately.5.He has made many friends in this ________(街区)since he moved here from New York.6.I don’t often go to see my grandparents because they live in the ________(郊区).Ⅱ.选词填空attractive;fortunate;rent;park;compare1.Th e landlord came around to collect the month’s ________.2.The flowers here do not ____________ with those at home.3.Your new glasses are very ____________.4.I couldn’t find anywhere to ____________ the car.5.She’s ____________ enough to enjoy good healt h.Ⅲ.单项拼写1.The rent ________ a flat is very high in this district.A.at B.aboutC.for D.of2.The factory has ________ a night school to train the workers.A.found B.put upC.set up D.built3.I was approaching ________ the garden when a dog ran out.A.to B.towardsC.for D./4.Although it was only a ________ war,it lasted quite a number of years.A.central B.localC.serious D.complete5. Two middle-aged passengers fell into the river.______ __,neither of them could swim. A.In fact B.LuckilyC.Naturally D.Unfortunately6.—Your father is sleeping.Don’t ________,will you?—No,I won’t.A.interrupt B.botherC.excuse D.break7.It was the third time that she ________ to this mountain village to see the children. A.comes B.cameC.has come D.had come8.He was told that it would be at least three more months________he could recover and return to work.A.when B.beforeC.since D.that9.—What do you think of the girl?—She is ________ too sure of herself.A.fairly B.quiteC.rather D.pretty10.—How about seeing the new movie at the theatre tonight?— ________,but I’ve got to go over my notes for tomorrow’s exam.A.All rightB.Sounds greatC.I can’tD.No,I am terribly sorryⅣ.阅读理解As any homemaker who has tried to keep order at the dinner table knows,there is far more to a family meal than food.Sociologist(社会心理学家)Michael Lewis has been studying 50 families to find out just how much more.Lewis and his co-workers carried out their study by videotaping(录像) the families while they ate ordinary meals in their own homes.They found that parents with small families talk actively with each other and their children.But as the number of children gets larger,conversation gives way to the parents’ efforts to control(控制)the loud noise they make.That can have an important effect on the children.“In general the more question-asking the parents do,the higher the children’s IQ scores.〞Lewis says,“And the more children there are,the less question-asking there is.〞The study also provides an explanation for why middle children often seem to have a harder time in life than their siblings(兄弟姐妹).Lewis found that in families with three or four children,dinner conversation is likely to center on the oldest child,who has the most to talk about,and the youngest,who needs the most attention.“Middle children are invisible(看不见的),〞says Lewis.“When you see someone get up from the table and walk around during dinner,chances are it’s the middle child.〞 There is,however,one thing that stops all conversations and prevents anyone from having attention:“When the TV is on,〞 Lewis says,“ dinner is a non-event.〞1.The writer’s purpose in writing the text is to ________.A.show the relationship between parents and childrenB.teach parents ways to keep order at the dinner tableC.report on the findings of a studyD.give information about family problems2.Parents with large families ask fewer questions at dinner because ________.A.they are busy serving food to their childrenB.they are busy keeping order at the dinner tableC.they have to pay more attention to younger childrenD.they are tired out having prepared food for the whole family3.By saying “Middle children are invisible〞 in Paragraph 3,Lewis means that middle children ________.A.have to help their parents to serve dinnerB.get the least attention from the familyC.are often kept away from the dinner tableD.find it hard to keep up with other children4.Lewis’ research provides an answer to the question ________.A.why TV is important in family lifeB.why parents should keep good orderC.why children in small families seem to be quieterD.why middle children seem to have more difficulties in life5.Which of the following statements would the writer agree to?A.It is important to have the right food for children.B.It is a good idea to have the TV on during dinner.C.Parents should talk to each of their children often.D.Elder children should help the younger ones at dinner.Ⅴ.阅读表达People visit other countries for many reasons.Some travel on business;others travel to visit interesting places that are only found in other countries,such as the Taj Mahal in India,or the temples of Thailand.Wherever you go,and for whatever reason,it is important to be safe.A tourist can attract a lot of attention from local people.Do not expect everyone you meet to be friendly and helpful as in your home country.It is important to prepare for your trip in advance,and to take precautions(预防措施)while you are traveling.As you prepare for your trip,make sure you have the right paperwork.You d on’t want to get to your goal only to find you have the wrong visa,or worse,that your passport is about to expire(期满).Also,make sure you travel with proper medical insurance,so that if ________ during your travels,you will be able to get treatment.Buy a guidebook and read about the local customs of the country you are going to.When you get to your goal,use official transport.Always go to bus and taxi stations; don’t accept rides from strangers who offer you a lift.If you prefer to stay in cheap hotels while traveling,make sure you can lock the door of your room from the inside.If you are traveling with valuables such as jewelry,or a lot of cash,you should ask about a safe for storing them in.Finally,remember to smile.Smiling_is_the_friendliest_and_most_sincere_form_of_communication,and_is_sure_to_be_understood_in_any_part_of_the_world!1.Try to give the passage a proper title.(no more than 5 words)________________________________________________________________________2.Please fill in the blank in Paragraph 3 with a proper sentence.(no more than 5 words)________________________________________________________________________3.Which sentence in the passage is the closest in meaning to the following one?Even at your local place,you shouldn’t be upset if someone couldn’t offer help when needed. ________________________________________________________________________4.What’s the main idea of the first paragraph?(no more than 8 words)________________________________________________________________________5.Please translate the underlined sentence into Chinese.________________________________________________________________________答案:Ⅰ.品句填词1.survey 2.tourists 3.bothering 4.approached 5.neighbourhood 6.suburb Ⅱ.选词填空1.rent 2 pare 3.attractive 4.park 5.fortunateⅢ.单项填空CCDBD BDBCBⅣ.阅读理解。
于都中学高一年级第二次周练英语试题答案
于都中学高一年级第二次周练英语试题答案听力训练:1-5 ABAAC 6-10 BAACB 11-15 ACABA 16-20 BBCAB单项选择:(1-8班)21-25 CDDCD 26-30 CACCA(9-22班)21-25 CDABD 26-30 CCDDA 31-35CACCA完形填空:(1-8班)31-35 BADDC 36-40 ACDAC41-45 BDCAD 46-50 BDCBC(9-22班)36-40 ADDAC 41-45 DCDCA 46-50 BDCBC阅读理解:51-54 CDCB 55-58 CBDB 59-62 AACB短文改错Mrs. Jackson is ∧very old woman. She 63._____a____ had a very small room in an old house. She 64. ___has____has lived there in 1964. That was 65.___since__the year when her husband death. He 66. ___died__had been ill for many year. After his 67.___years__death Mrs. Jackson didn’t have some money at all. 68. __any___She found out work in a factory. Herjob was to clean the offices. She had ∧get up 70. ___to___at six in the morning. Last year she was 71.___ √___ill and his doctor said, “Don’t work so hard.”72. ___her__书面表达Dear Miss Wei,Your letter reached us from the United States yesterday. We read it with great pleasure. I’m writing to you not only for myself but also for my class. As you know, I’m the monitor of the class.I’d like, first of all, to express our thanks to you for your teaching. For the past two years we have learned a lot from you. We enjoyed your classes. They were lively and interesting. Thanks to your help, we’ve made great progress in our English study. We are determined to do still better in the future.We miss you very much, and we also hope to hear from you as often as possible.Good luck to you!Yours faithfullyWang Peng。
高一上册第2次英语周练试题
崇仁一中2015-2016学年度上学期高一第二次英语周练试题第二部分:阅读理解(共两节,满分40分)第一节(共15小题;每小题2分,满分30分)阅读下列短文,从每题所给的四个选项(A,B,C,和D)中,选出最佳选项,并在答题卡上将该项涂黑。
AI like watching TV very much for I think it has many advantages(长处). First of all, watching TV is a good rest. After a day of hard work, we need a good rest. Watching TV can make our mind and body not tired any more because of the pleasant music and TV plays.Besides, watching TV is entertaining(娱乐消遣). There are many kinds of entertainment, such as sports activities(活动), singing and dancing concerts, plays and films all over the world at every time. It's not possible for us to go to every place to enjoy all the activities within a short time. We need at least over ten hours to fly from New York to Paris, a week by train from Beijing to Moscow and an hour to drive from Queens District to Manhattan District. But within just one second, TV can bring us from an NBA game in New York to a fashion show in Paris by changing the channels.Most important, watching TV is educational(教育). Our children can learn every kind of subjects through the educational programmes and the special reports on TV, and it's easy for them to learn Chinese from a Chinese teacher in Beijing and to learn Russian lessons from a Russian teacher in Moscow. Even we can learn how to behave well from the TV plays. Meanwhile, a teacher can teach millions of students without a huge classroom.1. The best title for the text is _______A. The advantages of watching TVB. TV brings good restC. Today's TV programmesD. How to use TV in schools2. According to the writer what is the most important reason for watching TV?A. We can enjoy ourselves.B. We can learn something useful.C. We can see whatever we like.D. Watching TV is a good rest.3. In the second paragraph the writer wants to show __________.A. TV stations send programmes quicklyB. TV brings different parts of world in front of usC. how to go to different places and enjoy ourselvesD. how long it will take a man to drive to different places4. The writer writes the text to __________ .A. tell us how to learn from TVB. persuade us to buy a TVC. introduce some TV programmesD. tell her ideas about TVBDavid Brown and Anne are two patients in the Adult Day Care program at Merey Hospital.David Brown is seventy-two years old.He's friendly and likes to talk.He lives with his wife in the city.But David is becoming forgetful.His wife says,“He'll heat up some soup,then forget to turn off the gas.”She is sixty-one and still works.She is worried about leaving her husband alone by himself.Anne is eighty and lives with her daughter,who is sixty.Her daughter says that she needs a rest,“Mom follows me everywhere.She follows me from room to room when I clean.She sitsdown next to me when I read the newspaper.I need a rest and she does,too.”And so,several times a week,David and Anne's families take them to the Adult Day Care Centre.Many hospitals have this program,Patients come to the centre for a full or half day,from one to five days a week.All the patients live with their families and most are old people.In the centre,patients learn many things,such as dancing and painting.Many patients like to cook their meals every day.Several men and women enjoy playing games.All the patients enjoy talking,singing and being with one another.Mrs. Carol Johnson is the director of the Centre.She says,“We are offering both the patients and their families a service of great value.Patients have the chance to get out of their houses.Husbands,wives or grown children can work or have a rest.Most important of all,families are able to stay together.”5. Why does David Brown become a patient of the Adult Day Care Centre?A.He is seventy-two years old.B.He is becoming forgetful.C.He is lonely at home.D.He is seriously ill.6. What happens to Anne's family?A.Her daughter is very tired because Anne always follows her.B.Anne cleans all the rooms every day.C.Her daughter doesn't want Anne to live with her.D.Her daughter is too old to look after her.7. Many patients prefer to stay in the Adult Day Care Centre because _________.A.they are free to do anything they likeB.the centre can help husbands and wives to live peacefully togetherC.they can't live by themselvesD.it makes the whole family enjoy themselves8. The best title of the passage should be ___________ .A.How to Spend the Rest YearsB.A Valuable PlaceC.The Adult Day Care ProgramD.Happy Families at the Adult Day Care CentreCAmericans like to travel on their yearly holiday. Today, more and more travelers in the United States are spending nights at small houses or inns instead of hotels. They get a room for the night and the breakfast the next morning.Rooms for the night in private homes with breakfast have been popular with travelers in Europe for many years. In the past five to ten years, these bed-and-breakfast places have become popular in the United States. Many of these America's bed-and-breakfast inns are old historic buildings. Some bed-and-breakfast inns have only a few rooms, others are much larger Some inns do not provide telephones or television in the room, others do.Staying at a bed-and-breakfast inn is much different from staying at a hotel. Usually the cost is much less. Staying at an inn is almost like visiting someone's home. The owners are glad to tell about the area and the interesting places to visit. Many vacationists say they enjoy the chance to meet local families9. Americans take a holiday trip ________A. all the year roundB. for yearsC. every other yearD. every year10. Which is not true to the passage?A. Some Americans now stay in a bed-and-breakfast home instead of in a hotel.B. The bed-and-breakfast inns are private homes opened to vacation visitors.C. The bed-and- breakfast inns have been popular in America for a long time.D. The owners provide a morning meal for their visitors and a room for the night.11. Many of these inns ________A. have a long historyB. are historicalC. have existed in the pastD. are buildings important in history12. The reason why American travelers are beginning to stay at bed-and- breakfast inns is that ___________.A. these inns are small and quietB. the travelers don't have to pay for the telephone or televisionC. the travelers can meet and talk with the local peopleD. the owners will show the travelers around the areaDIn 1995, a man named Raymond Kroc entered a partnership with two brothers named McDonald. They operated a popular restaurant in California which sold food that was easy to prepare and serve quickly. Hamburgers, French fries, and cold drinks were the main foods on the limited menu. Kroc opened similar eating-places under the same name, “McDonald” and they were an instant success. He later took over the company and today it is one of the most famous and successful “fast food” chains in America and the world.Why was his idea so successful? Probably the most important reason was that his timing was right. In the 1950s, most married women stayed home to keep house and take care of their children. During the 1960s, the movement for equality(平等) between men and women and an economy(经济) that needed more families to have to two money-earners resulted in many women returning to the workplace. This meant that they had less time and energy to do housework, so they depended more on fast-food restaurants.Single parents also have little time to spend in the kitchen. People living alone because of divorce(离婚) or a preference for a “single lifestyle” also depend on this type of food, since cooking for one is often more trouble than it is worth.Fast food is not part of the diet of all Americans. Another of the 1960s was called back-to-nature movement. More and more Americans based their diets on natural foods. This preference for natural foods continues to this day. These products can now be found not only in the special health food store but also in many supermarkets.13. “Cooking for one is more trouble than it is worth.” means________.A.cooking for several people is worth more moneyB.people cooking together has less trouble than one person cookingC.there are more problems when one cooksD.it takes too much time and effort to cook for one person14. The main idea of the passage is that _________.A.social and economic changes affect eating habitsB.Raymond Kroc is the most successful fast-food business owner in the worldC.Americans in general eat either fast food or natural foodD.Food changes faster than society15. Which of the following was not the reason for Raymond Kroc’s success?A.His partnership with the McDonald brothers.B.The back-to-nature movementC.A changing economy.D.C onvenient food’s help to single people.第二节(共5小题;每小题2分,满分10分)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。
陕西省吴起高级中学人教A版高一上学期数学第二周作业
一数学第2周周末作业(集合单元训练卷) 班级姓名一、选择题(请将选项填入题后表格中):1.已知集合{012},{|2,}A B y y x x A ===∈,,,则A B 中的元素个数为() A .6 B .5 C .4 D .32.设集合()(){}021|2=--=x x x A ,则集合A 中元素的个数为()A.1个B.2个C.3个D.4个3.设集合{}10A =-,,集合{}0,1,2B =,则A B 的子集个数是()A .4B .8C .16D .324.满足条件{}{}1,2,31,2,3,4,5,6M ⊂≠的集合M 的个数是()A .8B .7C .6D .55.设{}{}22|20,,|20,A x x x x R B x x x x R =-=∈=+=∈,则A B = ()A .{}0B .{}0,2C .{}2,0-D .{}2,0,2- 6.满足条件{}2|30M x x =-≤,则下列关系正确的是()A .0M ⊆B .0M ∈C .0M ∉D .3M ∈ 7.已知集合{}{}|410,|37P x x Q x x =<<=<<,则P Q = ()A .{}|37x x <<B .{}|310x x <<C .{}|34x x <<D .{}|47x x <<8.若集合{}{}2|10,|04A x x B x x =-<=<<,则A B = ()A .{}|01x x <<B .{}|11x x -<<C .{}|14x x -<<D .{}|14x x <<9.已知集合{}121A x a x a =+≤≤-, {}25B x x =-≤≤,且A B ⊆,则a 的取值范围是()A .2a <B .3a <C .23a ≤≤D .3a ≤ 10.已知集合,,则B =()A .B .C .D .11.若集合{}2|70,A x x x x N *=-<∈,则6|,B y N y A y *⎧⎫=∈∈⎨⎬⎩⎭中元素的个数为() A .1个 B .2个 C .3个 D .4个12.若集合{}0,1,,3x A =,{}21,x B =,A B =A ,则满足条件的实数x 的个数有()A .1个B .2个C .3个D .4个二、填空题:11.已知集合A ={}{}12,03,x x B x x -<<=<<则A B = . 12.已知集合{|{|(1)(2)0}A x yB x x x ===+-<,则A B = . 13.设集合{|06}A x x =≤≤,集合2{|3280}B x x x =+-≤,则A B = .20.已知{1,2,3,4}A ⊆,且A 中至少有一个偶数,则这样的A 有_______________个.三、解答题:14.设集合2{|02},{|30}A x x m B x x x =<-<=-+≤,且A B B = .求实数m 的取值范围:15.已知集合}2,1{=A ,}02|{=-=mx x B ,若A B ⊆,求实数m 的值参考答案1.C 点拨:∵集合A={0,1,2},B={y|y=2x ,x ∈A}, ∴B={0,2,4}; ∴A ∪B={0,1,2,4}; ∴A ∪B 中的元素个数为4.2B 点拨:因}2,1{=A ,故集合中的元素是2个,应选B.3.C 点拨:{}1,0,1,2A B =-∴ A B 的子集个数是4216=4.C 点拨:满足条件{}{}1,2,31,2,3,4,5,6M ⊂⊂≠≠的集合M 中一定含有元素1,2,3,且{}1,2,3M ⊂≠,同时又是集合{}1,2,3,4,5,6的真子集,所以集合M等于集合{}1,2,3并上集合{}4,5,6的任一非空真子集,由于集合{}4,5,6的非空真子集有:3226-=个,所以满足条件的集合M 有6个, 故选C .5.D 点拨:由题{}0,2A =,{}0,2B =-,由集合的并集运算可得{}2,0,2A B =- .故本题答案选D.6.B 点拨:由条件知{|M x x =≤,根据元素与集合间关系,可知0M ∈.故本题答案选B.7. B 点拨:由数轴可得{}{}|410|37=P Q x x x x =<<<< {}|310x x <<,选B.8.C 点拨:{}2|10(1,1),A x x =-<=-所以AB ={}|14x x -<<,选C.9.D 点拨:当A =∅时1212a a a +>-∴<,当A ≠∅时需满足12121215a a a a +≤-⎧⎪-≤+⎨⎪-≤⎩,所以23a ≤≤,综上可知a 的取值范围是3a ≤10.A 点拨:Q 集合,,∴取0,0x y ==,得0z x y =+=;取0,1x y ==,得1z x y =+=;取0,2x y ==,得2z x y =+=;取1,0x y ==,得1z x y =+=; 取1,1x y ==,得2z x y =+=;取1,2x y ==,得3z x y =+=; 取2,0x y ==,得2z x y =+=;取2,1x y ==,得3z x y =+=; 取2,2x y ==,得4z x y =+=;{0,1,2,3,4}B ∴=,故选A .11.D 点拨:{}654321,,,,,=A ,{}6321,,,=B ,所以集合B 中的元素个数为4个,故选D. 12.C 点拨:由题A B =A ,则20x =或23x =,则满足条件的实数x 的个数有3个二、填空题: 11.()1,3A B =- 12.()1,A B =-+∞ 13.=B A [-2,6] 14.12个. 三、解答题:14.解:由题意得:B={x|﹣x 2+3x ≤0}={x|x ≤0或x ≥3}, A={x|0<x ﹣m <2}={x|m <x <m+2}, 当A ∪B=B 时,有A ⊆B , 应满足m+2≤0或m ≥3,解得32m m ≥≤或﹣. 15.解:因为A B ⊆,当0m =时,B =∅满足要求;当B ≠∅时,20m -=或220m -=,2m =或1,综上,0m =或1或2.。
2021年高一9月第二次周练英语试卷 Word版含答案
xx年9月江苏省建湖二中高一英语第一学期第二次周练编写姚志文审核曾娟一、单项填空(共15小题;每小题2分,满分30分)21. You’d better leave your iPhone at home. Our school doesn’t _______a mobile phone in the exam.A. approve students of bringingB. approve studentsto bringC. approve of students to bringD. approve ofstudents bringing22.It is reported that he has been _______ wild animals for 10 years.A. devoting to studyingB. devoted to studyC. devoted to studyingD. devoted himself tostudying23. Mei Lanfang, a great master of Chinese Peking Opera, was an artist_______ I have the greatest respect.A. for whomB. for whoC. about whomD. of whom24. I don’t know what _______, but from their serious expressions I guessit must be an important problem.A. has discussedB. is discussedC. is being discussedD. has been discussing25.The hotel _______ during our holidays stands by the seaside.A. we stayed at itB. we stayed atC. we stayedD. where we stayed at26. His _______ look suggested the problem was very _______.A. confused; confusingB. confusing; confusingC. confusing; confusedD.confused; confused27. Most of the Chinese people are big savers —they get used to puttingevery penny in the bank _______ a rainy day.A. in defence ofB. in charge ofC. in exchange forD.in preparation for28. My new classmate, Lucy, deserves _______ because her time is alwaysmade use of _______ high grades.A. praising; achievingB. to praise; toachieveC. to be praised; to achieveD. praise; achieving29. The reason _______ he missed school this morning was _______ he hadto look after his sick motherA. why; becauseB. why; thatC. which ; becauseD. which; that30. Some teenagers turn a deaf ear to their parents’ advice, _______ they know it does good to them.A. now thatB. as ifC. even ifD. so that31.I wonder how much the post office _______ you for the new service.A. costB. chargedC. spentD.paid32. The only year _______ Angela and her family spent together was xx,and she will never forget the time _______ they lived happily.A. that; whichB. when; whichC. that; whenD. which; when32.The headmaster along with one of the teachers who _______ fond offootball _______ at school so far.A. are; hasn’t arrivedB. are; haven’t arrivedC. is;doesn’t arrive D. is; hasn’t arrived33.The teacher insisted that the exercises _______ easy and that they_______ in by 9:00.A. were; should handB. were; were handedC. were; be handedD. be; be handed35. The way _______ our English teacher explained the sentence to us iseasy to understand.A. whichB. whereC. in thatD.in which二、完形填空(共20小题;每小题21分,满分40分)Having returned from her round trip, the angry woman stood outsidethe ticket office of the station. “The railway owes (欠债) me $12,”she said to Harry Jenks, the young man working at the 36 . “You soldme a ticket 37 May 22nd, but there was no ship from Jersey that night.So my daughter and I had to stay in a hotel. It 38 me $12.”Harry was 39 . He remembered selling the woman a return ticket.“e into the office, Madam,” he said politely. “I’ll just 40 theJersey timetable for May 22nd. The woman and her little girl followedhim 41 . She was 42 right, as Harry soon discovered, there was no 43 on May 22nd. How could he have 44 such a careless mistake? He sh ouldn’t have sold her a ticket for that day. Wondering 45 to do, he smiled at the child. “You look sunburned,” he said to her. “Did you have a nice holiday in Jersey?”“Yes,” she answered, shyly. “The beach was 46 . And I can swim too!” “That’s fine,” said Harry. “My little girl can’t 47 a bit yet. Of course, she’s only three…”“I’m four,” the child said proudly. “I’ll be four and a half.”Harry 48 the mother. “I remember your 49 , Madam.” he said. “But you didn’t get 50 for your da ughter, did you?” “Er, well,” the woman looked at the child. “I mean, she hasn’t started school yet. She’s only four.”“A four-year-old child 51 have a ticket, Madam. A child’s return ticket to Jersey costs…, let me see… $13. So 52 the railway pays your hotel, you will 53 $1. The law is the law, but since the 54 was mine…”The woman stood up, 55 the child’s hand and left the office.36. A. train B. ship C. officeD. hotel37. A. in B. for C. at D. before38. A. paid B. spent C. costD. saved39. A. worried B. pleased C. disappointedD. interested40. A. look B. watch C. testD. check41. A. into B. out C. outside D. inside42. A. quite B. all C. not D. never43. A. plane B. sailing C. trainD. bus44. A. broken B. made C. givenD. thought45. A. how B. why C. what D. which46. A. lovely B. beautifully C. wonderfullyD. terrible47. A. walk B. ride C. swimD. run48. A. listened to B. asked for C. got toD. turned to49. A. money B. ticket C. shipD. daughter50. A. one B. it C. them D. ones51. A. can B. may C. need D. must52. A. since B. if C. unlessD. until53. A. owe B. have C. get D. spend54. A. money B. debt (债务) C. faultD. ticket55. A. raised B. picked C. tookD. brought三、阅读理解 (共6小题;每小题3分,满分18分)2021年高一9月第二次周练英语试卷 Word版含答案Attend an hour-long group information meeting in the Admissions Office (招生办公室)Admissions officers give information and answer questions about the visit. No appointment or registration (登记) is required for families or groups of 20 people or less who wish to visit the university. Groups of more than 20 people should email tours @ fas. Harvard. Edu to plan a visit.Take a tourTake a student-led tour of the university. But the dormitories, academic departments, athletic facilities and libraries are not included on any of our tours.Attend a classThe Admissions Office provides a list of the meeting times and locations of courses held during the academic year that visitors are wele to attend.Speak with the Harvard teachersTeachers and other staff members are often glad to talk to people who have questions about our programs. It is best to write ahead directly to the office to arrange an appointment.For Seniors OnlyEat a meal with Harvard studentsDuring the academic year, high school seniors are our guests for one meal in Annenberg Hall, the first-year dining hall, or in one of the House dining halls if acpanied by a House resident.Stay overnight in one of the residence hallsOur office can arrange for high school seniors to stay with volunteer student hosts for one night, Monday through Thursday, from October 1st through early March. We need to hear from you by phone (617-495-1551) or by mail at least three weeks in advance for us to be able to confirm(确认) your stay with a host.56. Which of the following activities is NOT available to all visitors?A. A meeting in the Admissions Office.B. An opportunity to talk with a teacher.C. A tour of the university.D. A meal with Harvard students.57. Which place can be visited according to the text?A. Dorms.B. Dining halls.C. Libraries.D. Academic departments.58. The text is most probably taken from a(n) .A. news reportB. advertisementC. feature storyD. school websiteBIt is two in the morning. The wind is getting stronger and there is a chance that it will rain. Though the weather is bad, Al Gehrke sits 110 floors above the ground, 442 meters above the earth. You may be wondering what he is doing so far off the ground. If you asked him, he would say, “I am just doing my job!”Al Gehrke has a very special job that not many people would want to have. He manages one of the tallest buildings in the world—the Wills Tower in Chicago. His team washes and changes the windows. The Wills Tower has 16, 000 windows and each window weighs over 90 kilos. Gehrke and his team work from seven in the evening until four in the morning. They clean 18 windows each night. Each window takes almost 30 minutes. Al Gehrke is not afraid of high places and he is a good man for the job.Mary Ann also has an unusual job. Instead of hanging high above the earth washing windows, she works under the water. She trains dolphins (海豚) for shows and also helps people to swim with the dolphins. She loves the dolphins. “We never tell a dolphin what to do. We ask them respectfully. They decide to do that for us because of the relationship we have,” she said.Besides washing windows high above the earth or swimming with big fish under the water, there are other unusual jobs that you have probably never thought of people having. Here is another strange example: karaoke singers! A karaoke singer is someone who sings the songs of famous singers. The singer is able to follow the words of the songs because they appear on a puter in front of them. In Cyprus, karaoke singers are very popular. They sing to the people on holiday. As the visitors travel around the island they can listen to the music of the karaoke singers.59. By saying “I am just doing my job” in Paragraph 1, Al Gehrke is most likely to tell us .A. his job is difficult to doB. he is brave and strongC. he can make much moneyD. his job is nothing special60. According to the third paragraph, Mary Ann .A. considers herself unusualB. teaches people how to swimC. has a great love for dolphinsD. works long hours every day61. The writer is trying to introduce some unusual jobs by .A. holding some activitiesB. offering some examplesC. making parisonsD. telling some funny jokes五、任务型阅读(共10小题,每小题2分,满分20分)To make our digestive (消化的) system work well, we should avoid doing some things after having a meal, for example, drinking water. It is true that a person should drink 8 glasses of water every day to stay healthy. However, drinking water right after eating or even during a meal may disrupt (扰乱) digestion. It might affect on the natural levels of acid and bile (酸和胆汁) that are necessary for proper digestion. What’s more, drinking cold water after eating might slow down (减慢)digestion. So try to avoid drinking water at least an hour after a meal, and avoid drinking it while eating.Though walking after eating is healthy, doing it immediately after a meal is not. Doing so will make it difficult for the digestive system to take in nutrients (营养) from the food. Besides, the blood will flow towards other parts of the body, like legs, hands, etc., which will make the digestive tract not have enough amount of blood flow that is needed for proper digestion. So we should wait for at least 2 hours after eating, and then begin exercising.Sleeping should also be avoided right after eating. This is because going to bed right after a meal will lead to improper digestion. What’s more, such a habit will also make you put on a lot of weight. Therefore, wait for an hour or two, and then go to sleep.Many of us have the habit of drinking tea just after lunch or dinner, which is really unhealthy. The tea leaves are rich in acid which prevents the protein in the food from digesting. The best time to drink tea is at least one hour after eating.Eating fruits right after a meal may fill the stomach with air and cause disfort. They will also take time to reach the digestive tract, disturbing the entire process of digestion. To protect your stomach from digestive problems, eat fruits before or after 1-2 hours of a meal.In a word, if you avoid doing all the above things after eating, you will surely make your digestion easy, and you will be less likely to have digestive problems.六、综合翻译(共5小题;每小题3分,满分15分)1.杰克不再是从前的杰克了。
18—19学年下学期高一周练(二)英语试题(附答案)
第二周英语周周清一.阅读理解(33分)ADo you believe in the power of music? If you’re like most kids these days, you probably have an electronic device loaded with hundreds or even thousands of your favorite songs. At any moment in time, you can fill your headphones with the sounds of a particular song that suits your mood at that exact time.Are you getting ready for a big soccer match or do you need to get excited? Maybe some hip hop with a strong beat will do the trick! Besides, you might be ready to study for a big exam the next day. To calm your nerves and help you concentrate, a little bit of Mozart might make memorization more manageable.But is there any scientific evidence of these effects that music seems to have? You bet there is! Scientists have long recognized the power of music. Over the years, many studies have been conducted to examine in greater depth the nature and extent of the effects music has on people. For example, scientists at the University of Missouri have found that listening to music can have a positive effect on your mood. Their research gives scientific credibility(可信性) to the behavior that many people have already experienced on their own: listening to upbeat music can brighten your day and boost your mood.Other studies have shown that upbeat music isn’t the only type of music that can be helpful, however. When people are sad or have suffered a personal loss, sad music can be helpful because people identify with the tone and lyrias(歌词) of the music. Likewise, people under a lot of stress or experiencing upsetting situations can benefit from listening to angry music. Although angry music might not help you if you’re in a normal mood, its tone can benefit you when you are dealing with stressful and upsetting situations.1. What does the author mainly show in Paragraph 1?A. The importance of having an electronic device.B. The great number of songs on the Internet.C. The benefits of choosing a song suiting your mood.D. The convenience of finding a song suiting your mood.2. According to the passage, what is the power of Mozart?A. Making you less active.B. Keeping you more refreshed.C. Making you more focused.D. Keeping you better informed.3. Which of the following best explains the underlined word “boost” in Paragraph 4?A. Predict.B. Improve.C. Express.D. Ruin.4. What can we learn from the last paragraph?A. Only upbeat music can brighten our day.B. People will feel sad when identifying with the lyrics.C. Everyone can benefit from listening to angry music.D. Different music functions differently in different situations.BAt the age of seven, while his friends were spending their allowances on candy and toys, Jose Adolfo Quisocola, from Peru, came up with the creative idea of an eco-bank, which allows kids of all ages to become economically independent and financially wise while also helping the environment.Established in 2012, The Bartselana Student Bank is the world’s first cooperative bank for kids. Whoever wants to join has to bring in at least 5 kilograms(11 pounds) of solid waste(paper or plastic) and establish a savings goal. Once accep ted, all bank “partners” are required to deposit at least one additional kilogram(2.2 pounds) of recyclables on a monthly basis and obey other requirements, such as attending financial education and environmental management workshops. The waste accumulated is sold to local recycling companies, who, thanks to some clever negotiation by Jose, pay a higher-than-market rate for everything brought in by Bartselana Student Bank members. The funds received are placed in the individual’s account where they collect until his/her savings goal is reached. The account holder can then withdraw his/her money, or choose to leave it and continue to grow for a bigger target.“At the beginning, my teachers thought I was crazy or that a child could not undertake this type of p roject, ” Jose recalls. “They did not understand that we are not the future of the country but its present. Luckily, I had the support of the school principal and an assistant in my classroom.”The youngster’s persistence paid off. Today, the eco-bank, which now has the support of several local institutions, has ten educational centers and begins accepting applications from kids allacross Peru. On November 20, 2018, the young boy was awarded the famous Children’s Climate Prize (CCP). “Jose’s eco-bank is a brilliant way of linking economy and climate impact, both in thought and practice. The potential impact is amazing,” a judge said.Hopefully, Jose’s success will inspire more kids and adults to come up with new ideas that create value while helping the env ironment. As the boy says,” Together we can change the world…we just need an opportunity…”5. For what main purpose was the eco-bank created?A. To educate children how to spend their allowances.B. To help children become independent from their parents.C. To raise children’s awareness of environmental protection.D. To encourage children to buy whatever they want.6. What does Paragraph 2 mainly talk about?A. The history of the eco-bank.B. The requirements of membership.C. The wise way to deal with waste.D. The process of running the eco-bank.7. What is the biggest challenge Jose met at the start of opening the eco-bank?A. Lack of enough support.B. Lack of enough money.C. Lack of relevant experience.D. Lack of relevant knowledge.8. What can be a suitable title for the passage?A. An Amazing Boy,JoseB. Recycling does Count MuchC. An Opportunity to Change the WorldD. An Eco-bank, Economical and EcologicalCHere we introduce some rental houses to you.Apartment Levant in KomizaOverlooking one of the most beautiful fishing villages in Croatia, our two-storey house also gives you a full view of Komiza bay as well as neighboring island of Bisevo.The apartment has a wide,covered balcony and a small garden with lemon trees. It is only 10 minutes’ walk from the centreof the village, although it is on the edge of the village, with forests behind the house. Apartment DominaLocated in the centre of the city, the apartment is protected as a historical site. All other facilities are at your fingertips such as restaurants, shops and museums. The apartment is fully equipped and air-conditioned, having a kitchen with a dishwasher, a satellite TV and the free Web access. It contains a bedroom with a double bed and antique furniture. Besides, the apartment offerspet-friendly accommodation.Apartment TonkaThe apartment is located in an old stone house in the centre of Komiza. It offers two bedrooms, each with a separate bathroom, and a living room with a furnished kitchen. The house is only a couple of min utes away from the old harbor, along the old town’s street where you can enjoy Komiza’s rich cultural history. The bus stop is less than 200 meters away, near the fruit and vegetable market.Pearl of IssaThis two-bedroom apartment is only a few minutes’ w alk from beautiful beaches, shops, restaurants, cafés and bars. It consists of two bedrooms, a fully equipped modern kitchen, a dining room and a resting area with a sofa, which can be used as an extra sleeping place for one person, a bathroom and a balcony with comfortable garden furniture and barbecue equipment.9. What can we learn about Apartment Levant in Komiza?A. It is the most beautiful fishing village in Croatia.B. It offers a chance to admire the whole Komiza bay.C. It’s inconvenient to go to t he centre of the village.D. It lies in the center of the village with forests around.10. Which of the following does Apartment Domina provide?A. Portable washing machines.B. Modern furniture.C. Free Internet use.D. Friendly pets.11. Which of the following apartments contain two bedrooms?A. Apartment Tonka and Pearl of Issa.B. Apartment Domina and Pearl of Issa.C. Apartment Tonka and Apartment Domina.D. Apartment Domina and Apartment Levant in Komiza.二.完型填空(40分)Mr.Jones had always wanted to make a trip into the middle of Africa to shoot wildanimals.___12___first he had no enough money, and then he was married.His wife had not wanted him to___13___her.At last his wife___14__to the trip if he allowed her to go, too.“But it will be very uncomfortable,” Mr.Jones__15__her, “ It will be very hot and we shall live in a tent, and it_16__be dangerous.”“I don’t care,” said his wife, “I want to go with you.” So they bought a big tent, camp beds, a refrigerator(电冰箱)which did not need ___17___and many other things which would make the trip comfortable, and went off to the__18___of Africa.The first morning,___19___Mr.Jones took his gun and left the tent, he___20___his wife a bell and explained to her , “If you fal l in____21____and you need me , ___22____this bell and I’ll come at once.”After a few minutes, he heard the bell and returned____23____to the tent.“What’s the matter?” he asked.“___24___” said his wife, “I was only ____25____the bell.” Mr.Jones went off, but after a quarter of an hour, the bell rang____26____.Mr.Jones hurried back to the tent, but his wife said, “I’m____27____.I was cleaning our tent, and I touched the bell by mistake.” Mr.Jones returned to his___28____, but soon he heard the____29____once more.This time, when he got back to his____30____, the tent was burning and Mrs.Jones was lying on the ground, with____31____running from a big cut on hershoulder.“That’s better!” said Mrs.Jones.“This time the bell had been used correctly!”12. A. And B. But C. For D. So13. A. leave B. miss C. marry D. care14. A. allowed B. permitted C. satisfied D. agreed15. A. said B. advised C. persuaded D. warned16. A. may B. ought C. can’t D. must17. A. money B. electricity C. force D. time18. A. south B. middle C. east D. west19. A. while B. until C. before D. after20. A. gave B. sold C. lent D. bought21. A. hurry B. surprise C. safety D. danger22. A. hit B. knock C. beat D. ring23. A. again B. back C. quickly D. home24. A. Something B. Nothing C. No D. None25. A. ringing B. trying C. using D. testing26. A. again B. once C. across D. away27. A. happy B. sorry C. tired D. all right28. A. wife B. tent C. trip D. hunting29. A. cry B. shot C. bell D. shout30. A. garden B. house C. camp D. office31. A. water B. tears C. blood D. sweat三.七选五(10分)Note-taking is a skill that can help you do well in all your schoolwork---- everything from taking tests to researching a paper. There are many ideas that can help you take better notes.___32___You' ll be disorganized if you try to write down every word that’s said in class. And if you pay too much attention to getting your notes right, you might miss listening to what the teacher is saying. So you just need to write down the most important points from class.Learn to ask.___33___If the teacher's going too fast, your classmates will also be happy to hear the information again. If you don’t want to ask in class see your teacher afterwards Compare. Going over your notes with a friend and comparing what the two of you put down can help master what you're learning. It can also help you remember information when it's time for a test.___34__Copy. If you’ve scribbled(潦草书写) down notes in a hurry, you might not be able to read them when it comes time to prepare for a test.___35____Copying them also helps you learn and remember what you wroteOrganize. Keep notes for each subject in one place.____36____This could mean keeping a notebook or part of a notebook for each subject as you take notes in classA. Write down key pointsB. Listen carefully to the teachersC. This can help you do better on a testD. In this way, you can find everything easilyE. Don't be afraid to ask the teacher to repeat something you missF Reviewing your notes will also help you and your friend find out mistakesG. Look over your notes when you get home, and write them again if you need to.四.短文改错(10分)假定英语课上老师要求同桌之间交换修改作文,请你修改你同桌写的以下作文。
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高一物理(下)第二次周练试题(A)
注意事项:
1.考试时间:90分钟
2.答题前填写好自己的姓名、班级、考号等信息
3.请将答案正确填写在答题卡上
一、选择题。
(本题共12小题,每小题4分,共48分.在每小题给出的四个选项中,第1~8题只有一项符合题目要求,第9~12题有多个选项符合题目要求。
全部选对的得4分,选对但不全的得2分,有选错的得0分.)
1.下列说法正确的是()
A.做曲线运动的物体的合力一定是变化的
B.两匀变速直线运动的合运动一定是曲线运动
C.做匀速圆周运动的物体的加速度大小恒定,方向始终指向圆心
D.做平抛运动的物体在相同的时间内速度的变化不同
2.质量为2kg的质点在x-y平面上做曲线运动,在x方向的速度图象和y方向的位移图象如图所示,下列说法正确的是()
A.质点的初速度为3 m/s
B.2s末质点速度大小为6 m/s
C.质点做曲线运动的加速度为3m/s2
D.质点所受的合外力为3 N
3.某船在静水中的速度υ1=5m/s,要渡过宽30m的河,河水的流速υ2=4m/s,下列说法正确的是()
A.该船渡河所用时间至少是7.5s
B.该船的航程至少等于30m
C .若河水的流速增大,则渡河的最短时间变长
D .该船以最短时间渡河时的位移大小为30m
4.如图所示,P 是水平面上的圆弧凹槽.从高台边B 点以某速度v 0水平飞出的小球,恰能从固定在某位置的凹槽的圆弧轨道的左端A 点沿圆弧切线方向进入轨道.O 是圆弧的圆心,θ1
是OA 与竖直方向的夹角,θ2是BA 与竖直方向的夹角.则( )
A .=2
B .tan θ1tan θ2=2
C .=2
D .=2
5.如图所示,甲、乙、丙三个轮子依靠摩擦传动,相互之间不打滑,其半径分别为r 1、r 2、r 3,若甲轮的角速度为1ω,则丙轮的角速度为( )
A .113r r ω
B .311r r ω
C .312r r ω
D .112
r r ω
6.半径为R 的光滑半圆球固定在水平地面上,顶部有一个小物体,如图所示;今给小物体一
个水平初速度0v =,则物体将( )
A .沿球面滑至M 点
B .先沿球面滑至某点N 再离开球面做斜下抛运动
C D .立即离开半球面作平抛运动,且水平射程为2R
7.我国自主研制的北斗导航系统现已正式商业运行.北斗导航系统又被称为“双星定位系统”,具有导航、定位等功能.“北斗”系统中两颗工作卫星均绕地心O 做匀速圆周运动,轨道半径均为r ,某时刻两颗工作卫星分别位于轨道上的A 、B 两位置(如图所示).若卫星均顺时针运行,地球表面处的重力加速度为g ,地球半径为R (r>R ),不计卫星间的相互作用力,则( )
A .这两颗卫星的加速度大小相等,大小均为g
B .卫星1由位置A 运动至位置B 所需的时间为
3r R C .卫星1向后喷气就一定能追上卫星2
D .卫星1中的仪器因不受重力而处于完全失重状态
8.如图所示,a 为绕地球做椭圆轨道运动的卫星,b 为地球同步卫星,P 为两卫星轨道的切点,也是a 卫星的远地点,Q 为a 卫星的近地点。
卫星在各自的轨道上正常运行,下列说法中正确的是( )
A. 卫星a经过P点时的向心力与卫星b经过P点时的向心力大小相等
B. 卫星a经过P点时的速率一定小于卫星b经过P点时的速率
C. 卫星a的周期一定大于卫星b的周期
D. 卫星a的周期可能等于卫星b的周期
9.如图所示,质量为m的物块,沿着半径为R的半球形金属壳内壁滑下,半球形金属壳竖直固定于地面,开口向上,物块滑到最低点时速度大小为v,若物块与球壳之间的动摩擦因数为μ,则当物块滑至最低点时,下列说法正确的是 ( ).
A. 物块受到的支持力大小为为
B. 物块受到的支持力大小为
C. 物块受到的摩擦力为
D. 物块受到的摩擦力为
10.如图所示,一辆货车利用跨过光滑定滑轮的轻质缆绳提升一箱货物,已知货箱的质量为M,货物的质量为m,货车以速度v向左做匀速直线运动,重力加速度为g,则在将货物提升到图示的位置时,下列说法正确的是()
A.货箱向上运动的速度大于v
B.缆绳中的拉力F T 大于(M+m)g
C.货箱向上运动的速度等于vcosθ
D.货物对货箱底部的压力等于mg
11.下列有关生活中的圆周运动实例分析,其中说法错误的是()
A.公路在通过小型水库泄洪闸的下游时,常常要修建凹形桥,也叫“过水路面”,汽车通过凹形桥的最低点时,车对桥的压力小于汽车的重力
B. 在铁路的转弯处,通常要求外轨比内轨高,目的是减轻轮缘与外轨的挤压
C. 杂技演员表演“水流星”,当“水流星”通过最高点时,处于完全失重状态,不受重力的作用
D. 洗衣机脱水桶的脱水原理是水滴受到的离心力大于它受到的向心力,从而沿切线方向甩出
12.一个内壁光滑的圆锥形筒的轴线垂直水平面,圆锥筒固定。
有质量相等的两个小球A、B,分别沿着筒的内壁在水平面内作匀速圆周运动,如图所示。
A的运动半径较大,则( )
A、A球的角速度必小于B球的角速度
B、A球的线速度必小于B球的线速度
C、A球的运动周期必大于B球的运动周期
D、A球对筒壁的压力必大于B球对筒壁的压力
二.实验题(其中第(1)-(2)题每空2分,第(3)题每空3分,第(4)题4分,共16分)13.图甲是“研究平抛物体的运动”的实验装置图。
(1)实验前应对实验装置反复调节,直到斜槽末端切线________。
每次让小球从同一位置由静止释放,是为了每次平抛________。
(2)图乙是正确实验取得的数据,其中O为抛出点,则此小球做平抛运动的初速度为________m/s。
(g取9.8m/s2)
(3)在另一次实验中将白纸换成方格纸,每小格的边长L=5 cm,通过实验,记录了小球在运动途中的三个位置,如图丙所示,则该小球做平抛运动的初速度为________m/s;B点的竖直分速度为________m/s。
(g取10m/s2)
(4)下列哪些因素会使“研究平抛运动”实验的误差增大()
A.小球与斜槽之间有摩擦
B.安装斜槽时其末端不水平
C.建立坐标系时,以斜槽末端端口位置为坐标原点
D.根据曲线计算平抛运动的初速度时,在曲线上取作计算的点离原点O较远
三.计算题(14题12分,15题11分,16题13分)
14.如图所示,倾角为37°的斜面,在斜面底端正上方的某点将一小球以速度v0=3m/s的速度水平抛出,经过一段时间后小球恰好能够以垂直斜面的方向击中斜面.(重力加速度g=10m/s2,sin37°=0.6,cos37°=0.8),求:
(1)小球从抛出到达斜面所用时间;
(2)抛出点离斜面底端的高度H.
.
15.如图所示,半径为R,内径很小的光滑半圆管道竖直放置,质量为m的小球以某一速度进入管内,小球通过最高点P时,对管壁的压力为0.5mg。
求:
(1)小球从管口飞出时的速率;
(2)小球落地点到P点的水平距离。
16.某星球上面的火山喷出的岩块初速度为v
0时,上升的最大高度可达h.已知该星球的半径为R,引力常量为G,忽略星球的自转及岩块运动过程中受到稀薄气体的阻力,求:
(1)该星球表面的重力加速度大小g和星球的质量M;
(2)距星球表面高度为2R处的重力加速度大小g;
(3)星球的第一宇宙速度v.。