新人教版高一英语必修1必修2寒假作业练习(2)
一、小题练习1、―“You’ve already got well,haven’t you?”― she asked______A.if I have already got well, hadn’t you?B.whether I had already got well.C.have I already got well.D.had I already got well.2、He asked,"Are you a Party member or a League member?”→He asked me _________.A.If I was a Party member or a League memberB.am I a Party member or a League memberC.was I a Party member or a League memberD.whether was I a Party member or a League member3、---- She said,” Jim, who are you talking to now?”---- She asked Jim________.A. who he is talking to nowB. who is he talking to nowC. who was he talking to thenD. who he was talking to then4、“Please close the window,”he said to me.→He me the window.A.said to ; to closeB.told to ; closingC.asked ; to closeD.said to ; please close5、——He said,“Don’t do that again. ”——He _____ me____ that again.A.said to; not to doB.said to; don’t doC.told; don’t doD.told; not to do6、He asked for the computer.A.did I pay how muchB.I paid how muchC.how much did I payD.how much I paid7、—What did she say to you?—She ________ that she had met me somewhere before.A.said to meB.told meC.said meD.told to me二、阅读理解The National Air and Space Museum in Washington, DC has thousands of objects on display, including the 1903 Wright Flyer, Charles Lindbergh’s Spirit of St. Louis, the Apollo 11 Command Module Columbia, and a lunar rock you can touch. In addition to our exhibition gallery, you may want to visit the Albert Einstein Planetarium, Lockheed Martin IMAX Theater, and the Public Observatory on the east end. There are many things to do at the Museum in DC. We offer daily tours and educational activities for both children and adults. We also have scheduled lectures and events throughout the year.Hours & Admission: Open every day except December 25. Admission is free.Regular Hours: 10:00 am to 5:30 pmExtended Hours: 10:00 am to 7:30 pmDecember 26---30, 2016 March 30---April 20, 2017Friday and Saturdays, April 24---May 16, 2017May 17---September 7, 2017VISITING TIPSLimit the Number of Bags: All visitors are screened through metal detector upon entry. The fewer items you bring inside the Museum, the faster your entry. Before you visit, please review the list of prohibited items, which include pocket knives and tripods(三脚架). Visitors carrying prohibited items will not be allowed inside the Museum, so please leave them at home or in your car.No Food or Drink: Only bottled water is permitted in the Museum. You may only consume food and other drinks in the Food and Drink Court, not in the Museum. Groups who bring food are encouraged to picnic on the National Hall. Please Take Photos: You are welcome to take photos for personal use. However, tripods and monopods(单脚架) are not permitted without approval.First Aid: The Museum has a First Aid office and a nurse on duty. Please contact the nearest security officer or the Welcome Center for assistance.Visit the Welcome Center: At our Welcome Center in the South Lobby, staff and volunteers can answer any questions you have during your visit.Open: 10:00 am to 5:30 pmPhone: 202-633-2214E-mail: NASM-VisitorService@1.According to the passage, the National Air and Space Museum is a museum ___________.A.where only adults can take part in some educational activitiesB.where one can touch anything he likesC.everyone can visit without time limits all the year roundD.everyone can pay a visit to without buying tickets2.A visitor to the Museum can ___________.A.take photos with tripods for personal useB.get some medical treatment if he suddenly falls illC.bring fewer bags to go through metal detectorsD.eat and drink in the Museum or in the Food Court3.The purpose of this passage is to _________.A.attract people to explore the universeB.encourage adults to bring their children thereC.make an advertisement for the museumD.show what is on display in the museum三、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。
选项中有两项为多余选项。
Do you want to be at the top of your class? Add these tips to your life and you should be on your way to being a top student!①_____________ I cannot stress enough how important it is to pay attention to what your teacher is teaching you. Take part in class discussions if you have something worthwhile to add. Pay attention during class, especially during lectures.Taking notes is important. You don’t need to write down every single word your teacher sa ys but write down what he/she writes on the board, or any special fact you think you might need for a test. ②_____________ This way it will help you learn more effectively by actually thinking about what you are writing.Don't skip school. You will be missing out on stuff. ③_____________ However, you will have more work and you have missed lectures and in-class movies. Also, try not to be late for class. It’s most likely that your teacher won't appreciate it and you will get yourself behind.Keep a good attitude towards things. If you have an I don’t care about school or this class” attitude, then teachers will be less willing to help you with problems or offer you extra credit. The same goes for a lazy attitude. Have a respectful attitude to teachers and other students.④_____________Always ask questions. ⑤_____________ If you don’t understand, ask someone. Read your textbook and notes, and then if that fails, seek help. Ask a teacher, friend, classmate, parent, etc. Get a tutor if you need one.A. Be prepared.B. Write in your own words.C. Staying organised will be helpful.D. There is no shame in needing some help.E. Pay attention to everything the teacher says.F. It is true that you could make up the work.G. Try not to laugh when other students make a mistake.四、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。
新人教版%282019%29高一英语寒假作业(二)
高一英语寒假作业(二)基础练习选词填空(一)1. I _________ not much _____________ this sort of work.2. You know that I ______________ chemistry ___________ physics.3. You'll _____________ anything wrong.4. The room is dirty; please help me to ________________.5. We must __________ the new term.6. The nurse ________________ biscuits to the children.7. How many of your old school friends do you ___________?8. Which modes ____________ students of physics.9. Almost ten years have passed since I ____________ Shandong University.10 In order to enrich her knowledge, my sister _________ a distance-learning course.(二)1. We can't do two things ___________.2. Our English teacher often ___________ us ___________ try new hobbies in our daily life.3. We can ___________ and warm ourselves.4. Every child has to ___________ to the rest of the class.5. Last weekend we ___________ with each other.6. More people will ____________ cycling if the weather is fine.7. Once you ___________ drugs, it will be very difficult for you to get rid of it.8. She ___________ her sick child, so she hurried home immediately after work.9. People usually ____________ the things that are important to them.10. It's my pleasure to help other people ___________ China.单句语法填空1. Our monitor debated ___________ our maths teacher about the solution to the problem in class.2. Jack went to a remote village to do some ___________ (volunteer) work.3. The boy prefers English ___________ Chinese.4. True happiness comes when we learn to be content ___________ what we have.5. In other words, every action and ___________ (move) in Beijing Opera is important.6. I don't think the film is (suit) for children because it consists some violent scenes.7. Lake Constance used to be polluted but it had been cleaned ___________ in recent years.能力提升练Ⅰ.完形填空If you want to learn a new language, the very first thing to think about is why. Do you need it for a __1__ reason, such as your job or your studies？__2__ perhaps you're interested in the __3__，films or music of a different country and you know how much it will help to have a good __4__ of the language.Most people learn best using a variety of __5__，but traditional classes are an ideal start for many people. They __6__ an environment where you can practice under the __7__ of someone who's good at the language. We all lead __8__ lives and learning a language takes __9__. You will have more success if you study regularly, so try to develop a __10__. It doesn't matter if you haven't got long. Becoming fluent in a language will take years, but learning to get by takes __11__.Many people start learning a language and soon give up.“I'm too __12__，”they say. Yes, children do learn languages more __13__ than adults, but research has shown that you can learn a language at any __14__.And learning is good for the health of your brain, too.I've also heard people __15__ about the mistakes they make when __16__. Well, relax and laugh about your mistakes __17__ you're much less likely to make them again.Learning a new language is never __18__. But with some work and devotion, you'll make progress. And you'll be __19__ by the positive reaction of some people when you say just a few words in __20__ own language.Good luck!【语篇导读】语言学习非常重要，要注意方法和技巧。
高一上学期英语寒假作业2
高一上学期英语寒假作业2编稿人：第I 卷〔选择题〕第二局部：词汇知识运用〔共两节，总分值30分〕第一节：多项选择〔共10小题；每题1分，总分值10分〕从A、B、C、D四个选项中，选出可以填入空白处的最正确选项，并在答题卡上将该项涂黑。
21．〝Dama〞or 〝big mama〞refers to those middle-aged Chinese women who are very good at hunting for _______ and keep an eagle(老鹰) eye on the gold prices in jewelry shop.A. bargainsB. basisC. applicationsD. attention22．It is agreed that the Japanese leader should take ________ for damaging relations between China and Japan.A. realityB. rewardC. receptionD. responsibility23．The time has come for us to carry out the God-given promise that all are equal and _________ a chance to look for their full happiness.A. devoteB. exploreC. deserveD. charge24．The weather is concerned with all of us because it ______ us so directly—what we wear, what we do and even how we feel..A. containsB. appreciatesC. amazesD. affects25．Since the new technique was introduced, more patients have ______ heart attacks.A. simplifiedB. survivedC. solvedD. removed26．For children with hearing loss, they cannot _________ language as easily as ordinary people.A. pick upB. set downC. set upD. blow up27．Ever since the food safety accident, the company has carried out _______ checks on milk products to make sure that they are of high quality..A. informalB. universalC. regularD. equal28．Our guide openly suggested we give him a ________ tip for the tour, which was extremely short.A. peacefulB. generousC. frequentD. legal29．Seeing his son in hospital, Wang Jinsheng decided to return to his hometown and care for him ________ in the future.A. physicallyB. logicallyC. personallyD. totally30．—You seem to think highly of this journey. What do you like about it then?— Er, the history, the shops— people are quite friendly __________.A. after allB. as wellC. in returnD. in turn第二节：完形填空〔共20小题；每题1分，总分值20分〕阅读下面短文，从短文后所给各题的四个选项〔A、B、C和D〕中，选出可以填入空白处的最正确选项，并在答题卡上将该项涂黑。
人教版英语高一寒假作业本及答案
【导语】世界上60%以上的信件是⽤英语书写的，上两个世纪英国和美国在⽂化、经济、军事、政治和科学上的地位使得英语成为⼀种准国际语⾔。
以下是⽆忧考为⼤家整理的英语⾼⼀寒假作业本及答案，希望可以解决您所遇到的相关问题，加油，⽆忧考⼀直陪伴您。
Period One Warming Up & ReadingⅠ.⽤适当的介、副词填空1.One day she woke ________ and found a flying carpet ________ her bed.2.________ once the carpet flew ________ and took her ________ Tibet.3.We’re being killed ________ the wool ________ our stomachs.4.________ that Daisy cried，“I’m sorry I didn’t know that.”5.________ relief Daisy burst ________ laughter.6.Farmers hunted us ________ mercy.7.I’m protecting myself ________ mosquitoes.8.When I find a millipede insect，I rub it ________ my body.9.You should pay more attention ________ the rainforest where I live.10.What should be done to punish people who do harm ________ the animals?Ⅱ.佳句翻译与仿写1.Please take me to a distant land where I can find the animal that gave fur to make this sweater.翻译________________________________________________________________________________________________________________________________________________仿写 (1)你去过青岛吗?那⾥有美丽的沙滩。
人教版高中英语必修二高一寒假作业英语2Word版含答案
高中英语学习材料（灿若寒星*制作整理）高一英语寒假作业（二）2014.1满分：150分时间：120分钟第Ⅰ卷（选择题共95分）第一部分：英语知识运用（共四节，满分55分）第一节语音知识（共5小题，每小题1分，满分5分）从A、B、C、D四个选项中，找出其划线部分与所给单词的划线部分读音相同的选项，并在答题卡上将该选项涂黑。
1. patient A. afford B. wave C. academic D. attitude2. event A. method B. metal C. pretty D. system3. strict A. center B. physics C. practice D. electricity4. courage A. sound B. previous C. couple D. loudly5. interested A. bored B. organized C .disappointed D. embarrassed第二节情景对话（共5小题，每小题1分，满分5分）根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项，并在答题卡上将该选项涂黑。
选项中有两个为多余选项。
-Can I help you?- 6-Let me see. One lady’s skirt and one man’s overcoat.- 7-Is next Thursday soon enough?- 8-Until 6:30 p.m., sir.- 9-Here’s your receipt, sir.- 10A. Fine. That leaves me plenty of time to pick them up after work.B.I want to have these clothes cleaned and pressed.C. Good. Thank you.D. How much is it?E.A piece of cake.F．When will they be ready?G. Well. Yes. When does the shop close?第三节语法和词汇知识（共15小题,每小题1分,满分15分）从每小题的A、B、C、D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该选项涂黑。
高一英语新人教必修一二寒假作业23 含答案
一、小题练习1、---Why does the lake smell terrible?----Because large quantities of water _____________.A. have been pollutedB. have pollutedC. has been pollutedD. is being polluted2、Time magazine has chosen “The Guardians”，a group of journalists who ____ for their work，as Person of the Year，for taking great risks in pursuit of greater truths.A. will targetB. have targetedC. will be targetedD. have been targeted3、With more forests being destroyed, huge quantities of good land ______ each year.A. is washing awayB. are washing awayC. is being washed awayD. are being washed away4、—Why don’t we choose that road to save time ?—The bridge to it __________ .A.has repairedB.is repairedC.is being repairedD.will be repaired5、Finally both sides have reached an agreement, but the details______later.A.are discussingB.are discussedC.will discussD.will be discussed6、An exhibition with 885 cultural relics to be displayed ________ at the Meridian Gate Gallery.A.was heldB.would holdC.has holdD.will be held7、For many cities in the world, there is no room to spread out further, ____________ which New York is an example.8、It is the fifth time that Jack has won the competition, has surprised us all.9、Yesterday I bought an electronic dictionary, the price of was very high.10、As we all know, books are the source of knowledge, which I benefit a lot.11、Those that have been to Dalian all say it’s beautiful.12、He has calculated the day of the week in which the Spring Festival will fall.13、The way how you behaves says what type of person you are.14、This is the boy his handwriting is the best in our class.15、To be honest, I am ready to help those people whom need help.二、阅读理解If you love to read, and if you love social networking, you should check out Goodreads. Goodreads allows you to write reviews(评论)for everything you’ve ever read. You can see and comment on your friends’ reading progress, a s well as create or find a book club group page in your area.Goodreads is simple to use. When you sign up here for an account(帐户), you will be able to find your friends by their email addresses or other accounts. Once you have some friends, every time you log in(登录), you will see a timeline of their updates. You can see when they’ve added a book to a list, or when they’ve finished or reviewed a book. As soon as you have an account, you can also start looking for books you've read or that you want to read. Once you finish reading a book, you can go to the book page and review it.Finding your next book has never been easier. Now, not only can you search for books you know you want to read and add them to your “to read” list, but you can also easily s ee what your friends have recently read.If you are looking for a book club that meets in your area, you can search for that on Goodreads, too. Similarly, if you want to create your own book club, you can do that easily: just start a new group on Goodr eads and update the page to show what books you’re reading.1.If you want to use Goodreads, you must have ________.A.an email addressB.a book reviewC.an accountD.a book list2.What can you do with a “to read” list?A.You can review books you have recently readB.You can make your selection process even easierC.You can know what you want to read nextD.You can see what books your friends enjoyed3.If you want to set up a book club on the Internet, you should ________.rm others about book club meetings in timeB.update information about what books you are readingC.search for your old group on GoodreadsD.refer to book clubs on Goodreads daily4.The passage is most probably taken from ________.A.a research paperB.a news reportC.a website articleD.a travel guide三、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。
高一英语寒假作业(第2天)(含解析)新人教版-新人教版高一全册英语试题
第二天单句改错1、It is widely known that natural resources should be made good use._____________________________________________________________________2、There was a time what the businessman lost heart._____________________________________________________________________3、I’m still remembering it was in a sunny morning that I met Tom._____________________________________________________________________4、Water is a liquid, boiling of which is 100 ℃._____________________________________________________________________汉译英5、他是你可以依赖的人。
_____________________________________________________________________6、大学时期,曾经有一段时间我每周去看一次电影。
_____________________________________________________________________7、首先,我建议你养成每天阅读的习惯._____________________________________________________________________8、我擅长英语,尤其是口语。
_____________________________________________________________________阅读理解9、 When Mrs.Joseph Groeger died recently in Vienna,Austria,people asked the obvious,“Why did she live to be 107?〞Answers were provided by a survey conducted among 148 Viennese men and women who had reached the age of 100.Somewhat surprising was the fact that the majority had lived most of their lives in cities.In spite of the city’s image as an unhealthy place,city living often provide s benefits thatcountry living can lack.One factor seems to be important to the longevity(长寿)of those interviewed.This factor is exercise.in the cities it is often faster to walk short distances than to wait for a bus.Even taking public transportation often requires some walking.Smaller apartment houses have no elevators(电梯),and so people must climb stairs.City people can usually walk to local supermarkets Since parking spaces are hard to find,there is often no alternative to walking.On the other hand,those who live in the country and suburbs do not have to walk every day.In fact,the opposite is often true.To go to school,work,or almost anywhere else,they must ride in cars.1.The purpose of the second paragraph is to list some _____.A.benefits of walkingB.occasions for walking in city lifeC ments made by city peopleD.problems of city living2.To reach the third floor of a building.it would probably be most healthful ____.A.to take the elevatorB.to walk up the stairsC.to ride in a carD.to find an alternative to walking3.People who live in the country probably do more driving than walkingbecause ______A.they don’t live near business areasB.they don’t need the exerciseC.they never have parking problemsD.they can’t afford to take the bus4.A conclusion that can be drawn from this passage is that _____.A.air pollution is not seriousB.anyone can live to be 107C.country people should move to the cityD.walking is a healthful exercise10、 How to say hello in Japanese depends on when you say it.This is very much like different greetings used in English at different times of the day or night.In Japanese culture,it also depends on whether you are on the phone or meeting somebody or whether you are close to the person you are greeting.We don't get formal with our close friends.We seldom greet them with “Good morning〞or“Good evening〞.A“Hi〞 is enough.Although the most popular and most well­known translation for“Hello〞is still“Konnichiwa〞,it is not exactly how to say hello in Japanese.Perhaps it is not the most suitable word for it.Actually,the correct greeting in English for“Konnichiwa〞is“Good day〞or“Good noon〞,and I am sure you wouldn't like greeting people with a “Good day〞at any time,and neither do Japanese like saying“Konnichiwa〞w hen they want to say“Hello〞.So what to do? Let's do it the way the Japanese e “Ohaiyo Gozaimasu〞for“Good morning〞,“Konnichiwa〞when it's noon and“Konbanwa〞 to greet somebody in the afternoon.Things differ when you are on the phone.Justsay“Moshi,M oshi〞,which is actually similar to saying“Hello〞over the phone,because one hardly ever uses“Good morning〞or“Good afternoon〞or“Good evening〞 right after picking up the phone.It is invariably the sweet old“Hello〞.Next time,I'll tell something about my life in Japan.1.What is the best title for this passage?A.How to say hello in JapaneseB.How to greet close friends in JapaneseC.How to greet people in JapaneseD.Some differences between English and Japanese2.What does the underlined word“invariably〞in the third paragraph mean?A.Probably.B.Always.C.Sometimes.D.Likely.3.We can learn from the passage that the writer________.A.is from BritainB.lived in Japan for some timeC.is working in a radio station nowD.knows both Japanese and Chinese完形填空11、 People from Great Britain brought the English language to North America in the 16th and 17th centuries. And in the 1 300 years, there were 2 many changes in 3 places that now people can 4 tell an English person 5 an American in the way he or she speaks.Many old words 6 in England but were kept in America. For example, 300 years ago people in Great Britain got their water from something they called either a “faucet〞, a “spigot〞, or a “tap〞. All these wordsare 7 heard in different parts of America, but only“tap〞is still common in 8 . Americans often made up new words or changedold 9 . “Corn〞 is one kind of plant in Americaand 10 in England.Also, over the last three centuries the Englishlanguage 11 thousands of new words for things that weren't known 12 . And often, American and English people usedtwo 13 names for them. A tin can is called “tin〞for short in England, but a “can〞in America. The word “radio〞 is 14 all over the world, including America. But many English people call it a “wireless〞. And almost anything having something to do 15 cars, railroads,etc. 16 different names in British and American English.But now American and British English may be growing closer together. One 17 is the large amount of American speeches that British people hear daily in movies, on television,or 18 travelers. 19 this, Americans seem to be influencing the British more or less. So some day, English may evenbe 20 on both sides of the Atlantic.1.A.following B.recent C.oldest st2.A.such B.too C.so D.great3.A.either B.both C.neither D.two4.A.hardly B.difficulty C.clearly D.easily5.A.with B.from C.to D.and6.A.disappeared B.appeared C.spoke D.took7.A.not B.hardly C.also D.still8.A.America B.the two countries C.England D.British9.A.word B.forms C.ones D.ways10.A.another B.also planted C.a plant D.a kind of food11.A.added B.has added C.discovered D.has discovered12.A.anywhere B.in some countries C.before D.for centuries13.A.new B.short C.different D.surprising14.A.produced B.made C.developed ed15.A.to B.away C.with D.from16.A.has B.have C.have given D.was given17.A.thing B.cause C.belief D.expression18.A.from B.in C.on D.to19.A.For B.Because C.Besides D.Because of20.A.different B.more different C.the same D.more useful短文改错12、假设英语课上教师要求同桌之间交换修改作文,请你修改同桌写的以下作文。
pep人教版高中英语必修1+必修2寒假作业参考答案(部分)
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人教版 高一 必修一 寒假作业(2)物质的分类(带答案)
寒假作业（2）物质的分类一、单选题1.下列说法不正确的是()①只含有一种元素的物质一定是纯净物②生石灰做干燥剂涉及化学变化③酸性氧化物都能与水反应生成酸④碱性氧化物一定是金属氧化物⑤用鸡蛋壳膜和蒸馏水除去淀粉胶体中的食盐不涉及化学变化⑥两种盐反应一定生成两种新盐A. ①③⑥B. ①②③④⑤C. ②④⑥D. ②④⑤2.下图所表示的一些物质或概念间的从属关系不正确的是()A. AB. BC. CD. D3.下列分类或归类正确的是①液氯、氨水、干冰、碘化银均为纯净物②CaCl2、NaOH、HCl、IBr均为化合物③明矾、水银、烧碱、硫酸均为电解质④火碱、纯碱、碳酸钙都是电解质⑤碘酒、淀粉、水雾、纳米材料均为胶体A. ①③④B. ②③C. ②④D. ②③④⑤4.下列有关分类的说法正确的是()A. 胶体的本质特征是具有丁达尔效应B. 阳离子、阴离子中均分别只含有一种元素，则由这样的阴、阳离子组成的物质一定是纯净物C. 白磷转化为红磷是物理变化D. 碱性氧化物一定是金属氧化物，酸性氧化物不一定是非金属氧化物5.下列说法不正确的是()①只含有一种元素的物质一定是纯净物②生石灰做干燥剂涉及化学变化③酸性氧化物都能与水反应生成酸④碱性氧化物一定是金属氧化物⑤用鸡蛋壳膜和蒸馏水除去淀粉胶体中的食盐不涉及化学变化⑥两种盐反应一定生成两种新盐A. ①③⑥B. ①②③④⑤C. ②④⑥D. ②④⑤6.分类法在化学学科的发展中起到了非常重要的作用，下列分类标准合理的是()A. 根据是否具有丁达尔效应，将分散系分为溶液、浊液和胶体B. 依据分子组成中是否含有氧元素，将酸分为含氧酸和无氧酸C. 根据水溶液是否能够导电，将物质分为电解质和非电解质D. 依据组成元素的种类，将物质分为单质和化合物7.下列说法正确的是()①Na2O、Fe2O3、Al2O3属于碱性氧化物，CO2、SiO2、NO2都能和碱溶液发生反应属于酸性氧化物②碳酸钠、氢氧化钡、氯化铵、过氧化钠都属于离子化合物③混合物：漂白粉、水玻璃、Fe(OH)3胶体、冰水混合物④醋酸、烧碱、纯碱和生石灰分别属于酸、碱、盐和氧化物⑤硅导电，铝在浓硫酸中钝化均属于物理变化⑥盐酸属于混合物，而液氯、冰醋酸均属于纯净物。
高一寒假作业2(必修1和必修2)
B．若 a ∥ ， b ∥ ， ∥ ，则 a ∥ b D．若 a ， b ， ，则 a b
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5、设 a，b 为两条直线， ， 为两个平面，下列四 个命题中，正确的命题是（ A．若 a，b 与 所成的角相等，则 a ∥ b C．若 a ， b ， a ∥ b ，则 ∥
（1）求证：EF∥平面 CB1D1； （2）求证：平面 CAA1C1⊥平面 CB1D1
第 3 页（共 9 页）
19、(本题满分 12 分)
已知直线 l1 ： 3 x y 1 0 ， l2 ： x y 3 0 ，求： （1）直线 l1 与 l2 的交点 P 的坐标；（2）过点 P 且与 l1 垂直的直线方程．
10、若直线 y kx 1 与圆 x 2 y 2 1 相交于 P，Q 两点，且 POQ 120 （其中 O 为原点），则 k 的 值为（ ） B． 3 C． 2 或 2 D． 2
A． 3 或 3
11.已知点 A(2,3) 、 B (3,2) 直线 l 过点 P (1,1) ，且与线段 AB 相交，则直线 l 的斜率的取值 k 范围是 （ ）
人教版英语高一寒假作业本及答案新
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Period One Warming Up die downB.decrease;die outC.increase;die ofD.decrease;die from2.Why are they ________ disappearing?A.endangeredB.dangerousC.in dangerD.in danger of3.Daisy had always longed ________ endangered species of wildlife.A.to helpB.for helpC.helpD.to helping4.In relief Daisy ________ laughter.A.broke inB.broke outC.burst intoD.burst out5.I’m ________ myself from mosquitoes.A.preventingB.stoppingC.keepingD.protecting6.When I find a millipede insect，I rub it over my body.It ________ a powerful drug which ________ mosquitoes.A.contains;effectsB.includes;effectsC.contains;affectsD.includes;efforts7.Now 20 per cent of the wildlife park ________ used in this way.A.isB.wasC.areD.were8.What should be done to punish people who do ________ to the animals?A.goodB.badC.harmD.differenceⅣ.阅读理解At the beginning of the 20th century there were more than a million lions worldwide.Today there are less than 30,000 in the wild.The remaining lions are increasingly threatened by habitat loss，hunting activities to protect farms and cattle.For generations，Masai tribesmen on the large African plains in southeastern Kenya have hunted lions—to protect their farms and cattle.Today they celebrate the lions’ life.Noah is an elder in the Masai community.“We have decided as a community of the Masai to lay down our spears，and there will be no more killing of lions in our community.” He is part of a group of Masai visiting the United States promoting (推广) the Predator (捕食性动物) Compensation Program.Conservation International’s Frank Hawkins explains，“The Masai have been living with wildlife for many generations and it has been aconflicting relationship in many ways.They compete with the animals for food as lions eat their cattle.We’re trying to find ways in which the wildlife will become something useful to them.” They had the Predator Compensation Fund founded in 2022.After much discussion，a group of Masai farmers agreed to protect lions.In turn，if lions or other predators kill their cattle，the Masai owner will be paid market value for the dead animals from the fund.One man said that in the past，when a lion killed cattle，they killed it on the spot.And now，after the start of the program，the Masai see the lion population growing.Since 2022，only four lions have been killed here.1.What is this passage mainly about?A.The wildlife in the world.B.Lions and the Masai.C.The reason why lions are killed.D.The living ways of the Masai.2.What is the aim of the Predator Compensation Program?A.To protect people in the wild.B.To help the Masai protect their farms and cattle.C.To protect lions only.D.To protect the wildlife.3.Masai tribesmen killed lions before 2022 ______.A.because lions were dangerous for people thereB.because dead lions were worth a lot of moneyC.because they wanted lions’ meatD.because they wanted to protect their farms and cattle4.According to the passage，why haven’t Masai tribesmen killed many lions since 2022?A.Because lions don’t eat their cattle any more.B.Because they will be fined if they kill lions there.C.Because if a lion kills their cattle，they will be paid for the dead animals from the fund.D.Because there are less than 30,000 lions in the wild now.5.What do you think of the Masai?A.Reasonable.B.Cruel.C.Poor.D.Stupid.1.appreciate vt.鉴赏;观赏;感谢生义：vt.意识到，理解，领悟(1)I appreciate that I may be wrong.我意识到我可能是错的。