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新世纪英语八年级上U1L1词汇

新世纪英语八年级上U1L1词汇

新世纪英语八年级上U1L1词汇1 . 文化2 . 习惯;风俗3 . 交际;交流4 . 与……交往5 . 当地的,本地的6 . 修复;整修……如新7 . 绘画;(一幅)画8 . (中国)国画9 . 与……握手10 . 由于;自从……以来11 . 高兴的;满意的12 . 香肠,腊肠13 . 香肠肉卷14 . 吸引人的;诱人的15 . 室友;住在同室的人16 . 寿司17 . 讲座;讲课18 . 说英语的19 . 必要的;必需的20 . 有礼貌的;有教养的21 . 礼物;赠品22 . 花束23 . 一束……24 . 葡萄酒;酒25 . 丝绸;丝织的26 . 确定的;规定的27 . 收到;接收28 . 忙于做某事29 . 回答;答复30 . 作为……答复;作为……反应新世纪英语八年级上U1L2词汇31 . 对……提出忠告;小费32 . 短途旅游;郊游33 . 去郊游;去远足34 . 道歉35 .粘住;堵塞36 . 卡在……;陷在……37 . 车费;船费38 . 便士39 . 女侍者;女服务员40 . 帐单;票据41 . 服务;服务性事业42 . 费用;收费43 . 服务费44 . 更糟的是45 . 丝毫;根本46 . 期待;盼望47 . 平均;平均的48 . 发票;收据49 . 可怕的;非常50 . 词典;字典51 . 电子词典52 . 录制品;录音带53 . 服务性行业54 . 工资;工钱55 . 加拿大人;加拿大(人)的56 . 厅;沙龙57 . 美发厅58 . 对……感到满意59 . 不高兴的;不满意的60 . 对……感到不满意61 . (行李)搬运工62 . (旅行用)小提箱;衣箱63 . 服务员;侍者64 . 男侍者,男服务员65 . 支票;检查66 . 在饭店吃饭67 . 菜单68 . 第一道菜69 . 汤,羹70 . 洋葱71 . 主菜72 . 牛排73 . 特色菜;特产74 . 甜食;甜点心75 . 矿物的;矿物76 . 矿泉水77 . 雪碧78 . 荷兰(人)的;各自付费79 . 各人付各人的帐80 . 请(客);医治81 . 如此……以至82 . 感谢的,感激的83 . 对某人表示感激84 . 用……招待某人85 . 请某人点菜86 . 半熟的;稀有的87 . 熟透的;烧得烂的88 . 最少的;最少89 . 至少;起码90 . 豌豆91 . 把……捣成糊状92 . 土豆泥93 . 越来越(多的)94 . 包装;打包95 . 快餐;点心96 . 快餐部;点心店97 . 链条;连锁店98 . 例如;诸如……之类99 . 肯德基炸鸡店100 . 麦当劳快餐店101 . 必胜客比萨饼店102 . 要求;需要103 . 下面;下列104 . 介绍;引言105 . ……的介绍;……入门106 . 完整的;完成107 . 套餐108 . 软饮料,不含酒精的饮料109 . 热狗1 . 共同的;普通的2 . 成语;习语3 . 身体;尸体4 . 部分5 . 人体部位6 . 拇指7 . 注意地;专心地8 . 认真地;严肃地9 . 园艺10 . 与某人看法一致11 . 园艺技能12 . 全神贯注地听,洗耳恭听13 . 指甲;钉子14 . 击中要害;一针见血15 . 一……就……16 . 在……的帮助下;借助于……17 . 表达;陈述18 . 生动地;逼真地19 . 笑话;玩笑20 . 对不起;原谅21 . 独立的;自立的22 . 记住;默记23 . 笨拙的24 . 背诵;朗诵25 . 手势;用手势表示26 . 点头;点头表示27 . 索引;编索引28 . 食指29 . 嘴唇30 . 安静一点31 . 烦恼;故障32 . 圆;环形物33 . 大众化的;流行的34 . 作为;当作35 . 南美洲的;南美洲人36 . 侮辱;辱骂37 . 轻打。

上海新世纪英语初一下U1L2 Season 练习(五)及答案

上海新世纪英语初一下U1L2 Season 练习(五)及答案

语言能力运用Exercise 5A. Choose the best answer (根据短文內容选择最恰当的答案):When you want to call a store or an office that you don‟t often call, you may look the number up in a telephone book. You dial the number, and then you forget it! Your short-term (短期) memory lasts about 30 seconds. However, you don‟t need to look in the telephone book for your best friend‟s number because you already know it. This information is your long-term(长期) memory. Your long-term memory has everything that you remember through the years.Why do you forget things sometimes? There are several reasons. An important reason for forgetting something is that you did not learn it well in the beginning_ For example, you meet some new people, and soon you forget their names. You hear the names but you don‟t learn them, so you forget them.You can help yourself remember things better. Move information from your short-term memory to your long-term memory. You can do this if you practice the new information for more times.( ) 1. According to the passage, you forget the telephone number that you don‟t call often because____________.A. the telephone number is too longB. the telephone number is very strangeC. you use your short-term memory to remember itD. you look it up in the telephone book( )2. Which is easier to forget?A. Something that you understand.B. Your best friend … s name.C. The new information that you have practiced a lot.D. Something that you didn‟t learn well in the beginning.( ) 3. You may look the number up in a telephone book. Her “look up” means _________.A. look forB. look aroundC. turn to Li!D. find out( ) 4. According to the passage, what is helpful for you to remember better?A. Use your short-term memory to learn things.B. Move information from your short-term memory to your long-term memory.C. Look something up often.D. Learn something well in the end.( ) 5. The writer mainly want\s to tell us some ideas onA. how to keep something in mind longB. how to /earn English wellC. how to make a telephone callD. how to remember a person‟s nameB. Choose the words or expressions and complete the passage (选择最恰当的单词或词完成短文):Yesterday evening, when I went to town 1 my mother, we met a strange old man.It was raining 2 and we had no umbrella. We were trying to get into a taxi when He came up to us. He was carrying a nice umbrella and he said that he would give 3 for only a pound. He had forgotten his wallet, he said he needed a taxi to go back home. My mother didn‟t believe what he had said at first, and 4 him a lot of questions. But she finally believed the man and gave him the pound. She was happy to buy a good umbrella for so little. But the old man didn‟t get into a taxi. We walked 5 him and found he went into a pub and bought himself a glass of 6 with the pound. After he drank it, he 7 his hatand took up one of the many wet umbrellas there and went off with the new one.Soon after that, he sold it again.( ) 1. A. in B. near C. with D. by( )2. A. hard B. big C. heavy D. small( ) 3. A. it us B. it to us C. us it D. us to it( ) 4. A. showed B. asked C. lent D. borrowed( ) 5. A. with B. for C. before D. after( ) 6. A. orange B. tea C. coffee D. whiskey (威士忌) ( ) 7. A. put on B. took off C. put up D. put down C. Read the passage and fill in the blanks with proper words(在短文的空格内填入适当的词,使其内容通顺,每空格限填一词,首字母已给):Once a young man was traveling on a b l . He went a long way. At noon he felt very h 2 . He wanted very much to find a restaurant to have a meal there, but he didn‟tknow w 3 to find one. Just then an old woman was coming. “Maybe she knows,” he t 4 . So he came up to her and asked, “Hey, where is the nearest restaurant?”“Sorry, I don‟t know, young man.”The young man was just going a 5 when he heard the woman‟s voice, “Oh, yes, young man, you‟ve just dropped something.”The young man turned b 6 and asked, “What have I dropped?”“You‟ve dropped y 7 manners(礼貌).”1._________________2._______________3._______________4._______________5._________________6._______________7._______________D. Answer the questions (根据短文内容回答下列问题):Christmas is coming soon. The radio stations are playing Christmas music, and the stores are very busy. People are doing their Christmas shopping. Many families have Christmas trees in their homes already. We are going to buy our tree a few days before Christmas.At this time of the year, we make or buy presents for our family. I am going to buy a record for my elder brother. . He likes music. I am going to make a toy for my little brother. I am also going to buy a present for my mother.Our family is usually together on Christmas Day. My elder brother lives in another town, but he always drives his car here. I hope we are going to be together again this year. My elder brother is going to arrive on Christmas Eve. Then we are going to put up the tree in the living room, and we are going to decorate it.. We use small electric lights and other decorations. Finally, we put the presents under the tree. We don‟t open them until Christmas morning.1. Why are the radio stations playing Christmas music?___________________________________________________________________________ 2. What are we going to buy a few days before Christmas?___________________________________________________________________________ 3. Who am I going to make a toy for?___________________________________________________________________________ 4. When is our family usually together?___________________________________________________________________________ 5. When do we open the presents?___________________________________________________________________________Exercise 5A. 1-5 D D D B AB. 1-7 C A B B D D AC. 1-7 bus; hungry; where; thought; away; back; yourD. 1. Because Christmas is coming soon.2. Christmas tree.3. My littler brother.4. On Christmas Day5. Christmas morning.。

新世纪八上四个单元词汇

新世纪八上四个单元词汇

新世纪英语八年级上U1L1词汇U1L11.电子器件;电子的2.输入;键入3.进行文字处理4.控制5.应当;应该6.熟悉7.有能力的8.能;会(做)9.优势10.劣势11.允许;准许12.阻止某人做某事13.帮助某人做某事14.发明(n)(v); 发明家(n)15.与---连接在一起16.使能够17.订购;命令18.what can you do with/ on---?19.what’s the use of--?e sth to do sthe sth for doing sth22.send sb sth= send sth to sb23.listen to music24.first; second; third; fourth; fifth; ninth;twelfth; twentieth; thirtieth; fortieth;fiftieth; sixtieth; seventieth; eightieth;ninetieth25.among / betweenlions of/ hundreds of/ thousands of27.if 条件句模式28.need 的用法29.在因特网上30.play chess/ play the piano31.what a lot of fun the Internet broughtus!32.enable sb (not) to do sth33.keep in touch with sb34.be different from/ difference35.quick/ quickly36.besides=in addition=what’s more/beside= next to=near37.buy sb sth= buy sth for sb38.all kinds of books39.book sth for sb/ book sth for +数字40.in brief41.make sth +adj(make our lives moreconvenient and interesting)/ make sbdo sth42.make/let/help/have sb do sth43.convenient/ convenience44.interesting/ interestedU1L21.使整洁;整洁的2.整理;收拾3.准备prepare (v) ; preparation (n)4.为---做准备5.危险的(adj);危险(n)6.铺床7.动手术8.不定代词(12)9.乐意地10.效率高的(adj)efficient; 效率(n)efficiency; efficiently (adv)11.工业的12.医学的(adj); 药(n)13.练习做某事14.practice/finish/keep doing sth15.could you---?/May i--?/ would youlike---?/ Shall we---?(希望得到肯定回答)16.what’s the difference between A andB?17.help sb do sth = help sb with sth18.would like to to sth= want to do sth19.what else/ something elsee(v); useful(adj)21.difficult(adj); difficulty(n)22.always; usually; often; sometimes;seldom; never(how often)23.have sth to do24.keep sb/sth+ adj25.not only A but also B/ neither A nor B/either A or B/ There be+就近原则26.both A and B/ all of / both of + 复数27.neither of/ either of/ none of+三单28.as a result29.enough time; old enough30.too—to= not enough to = so ---that31.no ---any longer32.boring/ bored33.scientist/ science34.different types of35.each other = one another36.some ---some ---others/ some---others---still others37.look after= take care of38.be afraid ofU1L31.clean(v)(adj) cleaner(n)2. a piece of cake=easy3.the same as4.the same---as = as---as5.turn on/ turn off/ turn up / turn down6.way of life7.by hand/car8.certain(adj) certainly(adv)9.move into10.just/ already/ recently/never/ever/yet(现在完成时标志)11.visit sth(what); visit sb (who); a visit tosw; visitor参观者12.inch(es)13.made in China14.an ordinary TV15.finally(adv)=at last= in the end; final(adj)16.it’s for doing sth17.what’s the button for?18.far/much/still/ a little+比较级19.far—farther—farthest20.much+不可many+可复much/many—more---most21.still/just+ a few/ a little 表肯定22. a few +可复 a little +不可23.感叹句24.发出邀请;接受邀请;谢绝邀请25.great(adj) ; greatly(adv)26.relieve ---from27.give sb some time to do sth28.before/after/when 时间状语从句模式29.spend/cost/pay/take(主语;语法搭配;时间金钱)ed to do sth = often did31.however=but32.with the help of33.at the same time34.start / stop doing sth35.stop to do sth/ stop doing sth36.forget to do sth / forget doing sth37.made our lives both easier and moreenjoyable新世纪英语八年级上U2L1词汇1.文化2.习惯;风俗3.交际;交流4.交往5.当地的,本地的6.有礼貌的;有教养的7.绘画;(一幅)画8.(中国)国画9.与……握手10.由于;自从……以来11.当地的12.可爱的13.高兴的;满意的14.pleased(adj); pleasure(n);pleasant(adj)15.室友;住在同室的人16.讲座;讲课17.说英语的18.必要的;必需的(adj) need(v)19.葡萄酒;酒20.收到;接收21.忙于做某事22.回答;答复23.作为……答复;作为……反应24.on one’s study trip25.Monday; T uesday; Wednesday;Thursday; Friday; Saturday; Sundaymunicate with sb27.It’s great to see you again.= nice to seeyou again. 28.sitting room29.here’s a present for you.30. a traditional Chinese painting31.by oneself= without other people=alone32.would you like something to drink?33.since+原因状语从句34.an American teacher35.teacher(n); teach(v); teaches(三单)36.It’s necessary for sb to do sth.37.It’s kind of sb to do sth38.It’s a good time for sb to do sth39.western culture40.in the west41.polite(adj); politely(adv)42.arrive in /at= get to= reach43.arriving too early is---44.be busy with sth= be busy doing sth45.host/ hostess新世纪英语八年级上U2L2词汇1.eat out2.go Dutch3.treat4.be thankful to sb5.wait(v); waiter(n); waitress6.take sb’s order7.speciality8.so---that9.service(n); serve(v); server(n)10.tip—tipping11.surely12.hardly; never; no; little; few13.noisy(adj); noise(n)14.be true for15.such as16.have been in; have gone to ; havebeen to17.return= go back18.invite(v); invitation(n); invite sb todo sth19. a few minutes later20.few+可复;little+不可21.May I take your order?22.How would you like your--?23.Let’s go Dutch, shall we?24.It’s my treat.25.discuss(es)(v); discussion(n)26.more and more+多音节原级/名词27.on weekdays; at weekends28.take sth to sw29. a lot of = lots of=many/ much30.choose(v); choice(n)31.an a; e ; I ; o ; h; f; l; m; n; o; s ;r;32. a university; an hour; a uniform;33.be fond of= like34.everywhere= here and there新世纪英语八年级上U3L1词汇mon=usual=ordinary2.attentive(adj); attentively(adv)3.as soon as (主将从现;主过从过)4.mean(v); meaning(n)5.listen(v); listening(n)6.vivid(adj); vividly(adv)7.ring—rang—rung8.recite by heart9.care(v); careful(adj); careless(adj);carefully(adv)10.loud(adj); loudly(adv)11.as a result; as a student12.south(n); southern(adj)13.Y ou’ve got a sweet tooth.14.I see eye to eye with you.15.He’s got a green thumb.16.He’s all ears.17.Y ou’ve just hit the nail on the head.18.become; turn; seem; grow+adj(半个系动词)19.on one hand, ---on the other hand20.France—French;Australia—Australian;Canada—Canadian;Germany—German—Germans新世纪英语八年级上U3L2词汇1.展览会2.财宝;财富3.书法;书写4.成功而风靡一时的事物或人物5.朝代;王朝6.贵重的;无价的7.向公众开放8.as well; also; too又;还9.直到10.入口处11.直到12.全球的;全世界的13.19世纪中叶14.交换;兑换15.经济16.in order to= so as to= so that为了……17.pride(n); proud(adj); be proud of骄傲;自豪18.展出;展览品19.产品;制品20.在……里面21.顶级的;头等的22.since时间状语从句模式:主现完(一般现在时)从过23.at the city museum24.must be25.book two more tickets for sb26.not ---until27.at the entrance28.That’s fine with me.29.help sb (to) do sth 30.power(n); powerful(adj)新世纪英语八年级上U3L3词汇1.奇迹;对……感到好奇2.埃及3.尼罗河4.埃及的;埃及人的5.国王6.die(v); dead(adj); death(n); 死;死亡7.盖;覆盖8.占地……9.英尺10.由……组成11.重;称……重量12.吨13.数千14.没有15.公元前16.保护;防护17.活着的;在世的18.使……活着19.至今20.long(adj); length(n) 长,长度21.high(adj); height(n) 高,高度22.材料;原料23.深的24.英里25.分开的;分隔26.事实上;实际上27.继续;延伸28.到达;达到29.世界著名的;举世闻名的30.智慧31.nearly= almost32.more than= over33.although=but(不同时使用)34.tourist attraction; attract(v);attractive(adj)新世纪英语八年级上U4L1词汇1.农业的;农艺的2.农业园区3.暖棚,暖房4.果园5.茄子6.胡萝卜7.菠菜8.有机的;有机物9.有机肥料培植的蔬菜10.听说;听到……有关的消息11.化学药品;化学的12.生物学;生物13.各种的,种类繁多的14.是否15.瓜16.令人吃惊的,惊人的17.自然的;天然的18.禁猎区;动植物保护区19.区别;分辨20.从……学到21.dig ---up22.with modern technology23.set out =set off=start=leave24.wait for25.introduce sb to sb ; introduction(n)26.show sb around= take sb to visit sw27.nature(n); natural(adj)28.be glad to do sth = be happy to do sth=be pleased to do sth29.have names on30.not as ---as= 比较级31.instead of新世纪英语八年级上U4L2词汇1.宠物;宠儿2.饲养宠物3.争论;争辩4.赞同;喜爱5.赞同,赞成6.孤独的;寂寞的7.陪伴某人;与某人形影不离8.危险;风险9.处于危险中10.溜狗11.争论;争吵12.友好的;朋友的13.对---很友好14.而且;此外15.最近的;近来的16.所有人;物主17.勇敢的;无畏的18.问题;疑难问题19.把……看作,视为20.抚养;提高21.淹死;溺死22.地震23.进攻,攻击24.款待;对待;医治25.if/whether+宾语从句26.encourage sb to do sth27.in one’s opinion28.feel lonely29.donate sth to sb30.it was hard for sb to do sth31.decide to do sth/ make a decision32. a 12-year-old dog33.treat sb as---34. a year and a half35.hurry to do sth= do sth in a hurry= dosth hurriedly36.build(v) ; building(n)37.health(n); healthy(adj); healthily (adv);unhealthy(adj)38.in honour ofd。

汽车专业英语U1 L2(发动机部分)讲解

汽车专业英语U1 L2(发动机部分)讲解

2.Tappet, Pushrods and Rocker Arms
Tappet rests on a cam of the camshaft. The pushrod is a metal rod that fits between the tappet and the rocker arm. Its function is to transmit cam lobe lift to the rocker arm assembly. The rocker arm is nothing more than a lever. Its function is to convert the up wardmotion of a pushrod into downward motion that compresses the spring and opens the valve.
练一练
气缸体
气缸盖罩
油底壳
气缸盖 气缸垫
1- cylinder head cover;
2-cylinder head;
3- cylinder gasket; 4-cylinder block; 5- oil pan
Components of piston
piston top
活Pi塞shtoo销nlep孔in
(1) The Connecting Rod
The connecting rod links the piston to the crankshaft. The small end of connecting rod connects with the piston pin and the big end connects with the crank pin of the crankshaft.

牛津沪教版英语七年级下Unit 1 Lesson 2基础知识讲义(无答案)

牛津沪教版英语七年级下Unit 1 Lesson 2基础知识讲义(无答案)

七年级下U1L2Key Words and expressions一.同根词1. indoor ['ɪndɔː] adj. 室内的,户内的I like indoor sports. 我喜欢室内运动。

反义词:outdoor词组短语:indoor air pollution空内空气污染indoor temperature室内温度;室温indoor swimming pool室内游泳池indoor lighting室内照明indoor pool室内游泳池;游泳馆indoor stadium 体育馆,室内运动场indoor work 户内工作indoor garden 室内花园同根词:indoors adv. 在室内,在户内outdoors adv. 在户外If you’re indoors, go outdoors. Or head to the park. 如果你是在室内,那去户外呆会儿,或去公园散散步。

2. neither ['naɪðə ] adv. 两个都不;既不……也不adj. 两者都不的His family owned neither land nor house. 他家既无房子又无地。

At first, neither man could speak.起初,两个人都不说话。

词组短语:neither one没有一个neither do i我也不me neither我也不3. bloom [bluːm] vi. 开花;茂盛The roses bloom every few days. 玫瑰每隔几天开花。

词组短语:in bloom盛开;开着花in full bloom盛开着花bloom into 发展成为bloom of youth风华正茂out of bloom (花等)凋谢,过了花期同根词:blooming adj. 盛开的;妙龄的bloomer n. 开花植物4. ski [skiː] vi. 滑雪n. 滑雪橇adj. 滑雪(用)的Not far from the town center you can ski or walk by yourself in vast woodlands.距市中心不远的地方就是可以独自滑雪或漫步的林地区域。

上海新世纪英语八年级下U1L2 An Interview with a Good Language Learner 练习四

上海新世纪英语八年级下U1L2 An Interview with a Good Language Learner 练习四

Exercise FourI. Fill in the blanks with the proper words.(用所给单词的适当形式填空)1.____________________________on your success.(congratulate)2.We all know ___________________________________makes perfect.(practise)3.She speaks Chinese____________________________________(perfect)4.The pupils make a list of their __________________________about school meals.(complain)5.Please read notes in ______________________________first.(explain)6.You've been very ___________________________to us.(help)7. ______________________English into Chinese is a common type of homework.(translation)8.You should go to ______________________to the gentleman.(apology)9. I don’t think she has a wide ________________________ of history. (know)10. We are sure our country will be much richer and ____________ in the near future. (strength)II. Put the following into English(将下列译成英文)1. 最好学英语的方法_________________________________________________________ 2.参加英语晚会_____________________________________________________________ 3.和你谈话很愉快。

新教材高中数学第一章空间向量与立体几何4-1空间中直线平面的平行练习含解析新人教A版选择性必修第一册

新教材高中数学第一章空间向量与立体几何4-1空间中直线平面的平行练习含解析新人教A版选择性必修第一册

第2课时 空间中直线、平面的平行学习目标 熟练掌握用方向向量、法向量证明线线、线面、面面间的平行关系.知识点一 线线平行的向量表示 设u 1,u 2分别是直线l 1,l 2的方向向量,则l 1∥l 2⇔u 1∥u 2⇔∃λ∈R ,使得u 1=λu 2.知识点二 线面平行的向量表示设u 是直线 l 的方向向量,n 是平面α的法向量,l ⊄α,则l ∥α⇔u ⊥n ⇔u ·n =0.知识点三 面面平行的向量表示 设n 1 ,n 2 分别是平面α,β的法向量,则α∥β⇔n 1∥n 2⇔∃λ∈R ,使得n 1=λn 2 .思考 怎么利用向量证明或判定直线和平面的位置关系? 答案 证明或判定直线和平面的位置关系有两类思路(1)转化为线线关系,然后利用两个向量的关系进行判定;(2)利用直线的方向向量和平面的法向量进行判定.1.已知直线l 的方向向量为a =(-1,2,0),平面α的法向量为n =(2,1,-1),则( ) A .l ⊥α B .l ∥α C .l ⊂α D .l ∥α或l ⊂α答案 D2.若平面α∥β,且平面α的一个法向量为n =⎝ ⎛⎭⎪⎫-2,1,12,则平面β的法向量可以是( ) A.⎝⎛⎭⎪⎫-1,12,14B .(2,-1,0)C .(1,2,0) D.⎝ ⎛⎭⎪⎫12,1,2答案 A3.若两个不同平面α,β的法向量分别为u =(1,2,-1),v =(-4,-8,4),则平面α,β的位置是________. 答案 α∥β解析 ∵u =-14v ,∴α∥β.一、证明线线平行例1 在长方体ABCD -A 1B 1C 1D 1中,AB =3,AD =4,AA 1=2,点M 在棱BB 1上,且BM =2MB 1,点S 在DD 1上,且SD 1=2SD ,点N ,R 分别为A 1D 1,BC 的中点.求证:MN ∥RS .证明 方法一 如图所示,建立空间直角坐标系,根据题意得M ⎝ ⎛⎭⎪⎫3,0,43,N (0,2,2),R (3,2,0),S ⎝ ⎛⎭⎪⎫0,4,23. 则MN →,RS →分别为MN ,RS 的方向向量, 所以MN →=⎝ ⎛⎭⎪⎫-3,2,23,RS →=⎝ ⎛⎭⎪⎫-3,2,23,所以MN →=RS →,所以MN →∥RS →,因为M ∉RS , 所以MN ∥RS .方法二 设AB →=a ,AD →=b ,AA 1—→=c , 则MN →=MB 1—→+B 1A 1—→+A 1N —→=13c -a +12b ,RS →=RC →+CD →+DS →=12b -a +13c .所以MN →=RS →,所以MN →∥RS →. 又R ∉MN ,所以MN ∥RS .反思感悟 利用向量证明线线平行的思路证明线线平行只需证明两条直线的方向向量共线即可.跟踪训练1 如图所示,在正方体ABCD -A 1B 1C 1D 1中,E ,F 分别为DD 1和BB 1的中点.求证:四边形AEC 1F 是平行四边形.证明 以点D 为坐标原点,分别以DA →,DC →,DD 1—→为正交基底建立空间直角坐标系,不妨设正方体的棱长为1,则A (1,0,0),E ⎝ ⎛⎭⎪⎫0,0,12,C 1(0,1,1),F ⎝⎛⎭⎪⎫1,1,12,∴AE →=⎝ ⎛⎭⎪⎫-1,0,12,FC 1—→=⎝ ⎛⎭⎪⎫-1,0,12,EC 1—→=⎝ ⎛⎭⎪⎫0,1,12,AF →=⎝ ⎛⎭⎪⎫0,1,12,∴AE →=FC 1—→,EC 1—→=AF →, ∴AE →∥FC 1—→,EC 1—→∥AF →, 又∵F ∉AE ,F ∉EC 1, ∴AE ∥FC 1,EC 1∥AF ,∴四边形AEC 1F 是平行四边形. 二、证明线面平行例2 在四棱锥P -ABCD 中,四边形ABCD 是正方形,侧棱PD 垂直于底面ABCD ,PD =DC ,E 是PC 的中点.证明:PA ∥平面EDB .证明 如图所示,建立空间直角坐标系,D 是坐标原点,设PD =DC =a . 连接AC ,交BD 于点G ,连接EG ,依题意得D (0,0,0),A (a ,0,0),P (0,0,a ),E ⎝ ⎛⎭⎪⎫0,a 2,a 2.方法一 设平面BDE 的法向量为n =(x ,y ,z ), 又DE →=⎝ ⎛⎭⎪⎫0,a 2,a 2,EB →=⎝⎛⎭⎪⎫a ,a2,-a 2,则有⎩⎪⎨⎪⎧n ·DE →=0,n ·EB →=0,即⎩⎪⎨⎪⎧a 2y +z =0,a ⎝ ⎛⎭⎪⎫x +y 2-z 2=0,即⎩⎪⎨⎪⎧y +z =0,2x +y -z =0.令z =1,则⎩⎪⎨⎪⎧x =1,y =-1,所以n =(1,-1,1),又PA →=(a ,0,-a ),所以n ·PA →=(1,-1,1)·(a ,0,-a )=a -a =0. 所以n ⊥PA →.又PA ⊄平面EDB ,所以PA ∥平面EDB . 方法二 因为四边形ABCD 是正方形, 所以G 是此正方形的中心,故点G 的坐标为⎝ ⎛⎭⎪⎫a 2,a 2,0,所以EG →=⎝ ⎛⎭⎪⎫a 2,0,-a 2. 又PA →=(a ,0,-a ),所以PA →=2EG →,这表明PA ∥EG . 而EG ⊂平面EDB ,且PA ⊄平面EDB , 所以PA ∥平面EDB .方法三 假设存在实数λ,μ使得PA →=λDE →+μEB →,即(a ,0,-a )=λ⎝ ⎛⎭⎪⎫0,a 2,a 2+μ⎝ ⎛⎭⎪⎫a ,a 2,-a2,则有⎩⎪⎨⎪⎧a =μa ,0=λ·a 2+μ·a 2=a 2λ+μ,-a =λ·a 2-μ·a2,解得⎩⎪⎨⎪⎧λ=-1,μ=1.所以PA →=-DE →+EB →,又PA ⊄平面EDB , 所以PA ∥平面EDB .反思感悟 证明线面平行问题的方法(1)证明直线的方向向量与平面内的某一向量是共线向量且直线不在平面内; (2)证明直线的方向向量可以用平面内两个不共线向量表示且直线不在平面内; (3)证明直线的方向向量与平面的法向量垂直且直线不在平面内.跟踪训练2 在如图所示的多面体中,EF ⊥平面AEB ,AE ⊥EB ,AD ∥EF ,EF ∥BC ,BC =2AD =4,EF =3,AE =BE =2,G 是BC 的中点,求证:AB ∥平面DEG .证明 ∵EF ⊥平面AEB ,AE ⊂平面AEB ,BE ⊂平面AEB , ∴EF ⊥AE ,EF ⊥BE . 又∵AE ⊥EB ,∴EB ,EF ,EA 两两垂直.以点E 为坐标原点,EB ,EF ,EA 分别为x 轴,y 轴,z 轴建立如图所示的空间直角坐标系.由已知得,A (0,0,2),B (2,0,0),C (2,4,0),F (0,3,0),D (0,2,2),G (2,2,0), ∴ED →=(0,2,2),EG →=(2,2,0),AB →=(2,0,-2). 设平面DEG 的法向量为n =(x ,y ,z ), 则⎩⎪⎨⎪⎧ED →·n =0,EG →·n =0,即⎩⎪⎨⎪⎧2y +2z =0,2x +2y =0,令y =1,得z =-1,x =-1,则n =(-1,1,-1), ∴AB →·n =-2+0+2=0,即AB →⊥n . ∵AB ⊄平面DEG , ∴AB ∥平面DEG . 三、证明面面平行例3 已知正方体ABCD -A 1B 1C 1D 1的棱长为2,E ,F 分别是BB 1,DD 1的中点, 求证:平面ADE ∥平面B 1C 1F .证明 建立如图所示的空间直角坐标系Dxyz ,则D (0,0,0),A (2,0,0),C (0,2,0),C 1(0,2,2),E (2,2,1),F (0,0,1),B 1(2,2,2), 所以FC 1—→=(0,2,1),DA →=(2,0,0),AE →=(0,2,1),C 1B 1—→=(2,0,0), 设n 1=(x 1,y 1,z 1)是平面ADE 的法向量, 则n 1⊥DA →,n 1⊥AE →, 即⎩⎪⎨⎪⎧n 1·DA →=2x 1=0,n 1·AE →=2y 1+z 1=0,得⎩⎪⎨⎪⎧x 1=0,z 1=-2y 1.令z 1=2,则y 1=-1,所以可取n 1=(0,-1,2). 同理,设n 2=(x 2,y 2,z 2)是平面B 1C 1F 的一个法向量. 由n 2⊥FC 1—→,n 2⊥C 1B 1—→, 得⎩⎪⎨⎪⎧n 2·FC 1→=2y 2+z 2=0,n 2·C 1B 1→=2x 2=0,解得⎩⎪⎨⎪⎧x 2=0,z 2=-2y 2.令z 2=2,得y 2=-1, 所以n 2=(0,-1,2). 因为n 1=n 2,即n 1∥n 2, 所以平面ADE ∥平面B 1C 1F .反思感悟 证明面面平行问题的方法(1)利用空间向量证明面面平行,通常是证明两平面的法向量平行. (2)将面面平行转化为线线平行然后用向量共线进行证明.跟踪训练3 在直四棱柱ABCD -A 1B 1C 1D 1中,底面ABCD 为等腰梯形,AB ∥CD ,AB =4,BC =CD =2,AA 1=2,F 是棱AB 的中点.试用向量的方法证明:平面AA 1D 1D ∥平面FCC 1. 证明 因为AB =4,BC =CD =2,F 是棱AB 的中点,所以BF =BC =CF ,所以△BCF 为正三角形.因为ABCD 为等腰梯形,AB =4,BC =CD =2,所以∠BAD =∠ABC =60°. 取AF 的中点M ,连接DM , 则DM ⊥AB ,所以DM ⊥CD .以D 为原点,DM 为x 轴,DC 为y 轴,DD 1为z 轴建立空间直角坐标系Dxyz ,则D (0,0,0),D 1(0,0,2),A (3,-1,0),F (3,1,0),C (0,2,0),C 1(0,2,2), 所以DD 1—→=(0,0,2),DA →=(3,-1,0),CF →=(3,-1,0),CC 1—→=(0,0,2), 所以DD 1—→∥CC 1—→,DA →∥CF →, 所以DD 1∥CC 1,DA ∥CF ,又DD 1∩DA =D ,CC 1∩CF =C ,DD 1,DA ⊂平面AA 1D 1D ,CC 1,CF ⊂平面FCC 1, 所以平面AA 1D 1D ∥平面FCC 1.面面平行之探究典例 如图所示,在正方体AC 1中,O 为底面ABCD 中心,P 是DD 1的中点,设Q 是CC 1上的点,问:当点Q 在什么位置时,平面D 1BQ ∥平面PAO .解 如图所示,分别以DA ,DC ,DD 1所在直线为x ,y ,z 轴,建立空间直角坐标系,在CC 1上任取一点Q ,连接BQ ,D 1Q .设正方体的棱长为1, 则O ⎝ ⎛⎭⎪⎫12,12,0,P ⎝⎛⎭⎪⎫0,0,12,A (1,0,0),B (1,1,0),D 1(0,0,1),则Q (0,1,z ),则OP →=⎝ ⎛⎭⎪⎫-12,-12,12,BD 1—→=(-1,-1,1),∵BD 1—→=2OP →,∴OP →∥BD 1—→,∴OP ∥BD 1. AP →=⎝⎛⎭⎪⎫-1,0,12,BQ →=(-1,0,z ),当z =12时,AP →=BQ →,即AP ∥BQ ,又AP ∩OP =P ,BQ ∩BD 1=B ,AP ,OP ⊂平面PAO ,BQ ,BD 1⊂平面D 1BQ ,则有平面PAO ∥平面D 1BQ ,∴当Q 为CC 1的中点时,平面D 1BQ ∥平面PAO .[素养提升] (1)求点的坐标:可设出对应点的坐标,根据面面平行的判定定理转化为向量共线问题或者利用两个平面的法向量共线,进而建立与所求点的坐标有关的等式.(2)由结论推应具备的条件的逆向推理是逻辑推理中的一种基本形式,通过应用推理的方式与方法,能较好的培养学生的合乎逻辑的思维品质.1.已知向量 a =(2,4,5),b =(3,x ,y ) 分别是直线 l 1,l 2 的方向向量,若 l 1∥l 2 ,则( ) A .x =6,y =15 B .x =3,y =152C .x =3,y =15D .x =6,y =152答案 D解析 由题意得,32=x 4=y 5,∴x =6,y =152.2.如果直线l 的方向向量是a =(-2,0,1),且直线l 上有一点P 不在平面α上,平面α的法向量是b =(2,0,4),那么( ) A .l ⊥α B .l ∥α C .l ⊂α D .l 与α斜交答案 B解析 ∵直线l 的方向向量是a =(-2,0,1),平面α的法向量是b =(2,0,4), ∴a ·b =-4+0+4=0,∴直线l 在平面α内或者与平面平行,又直线l 上有一点P 不在平面α上, ∴l ∥α.3.若直线l 的方向向量为a ,平面α的法向量为n ,能使l ∥α的是( ) A .a =(1,0,0),n =(-2,0,0) B .a =(1,3,5),n =(1,0,1) C .a =(0,2,1),n =(-1,0,-1) D .a =(1,-1,3),n =(0,3,1) 答案 D解析 若l ∥α,则a ·n =0. 而A 中a ·n =-2, B 中a ·n =1+5=6,C 中a ·n =-1,只有D 选项中a ·n =-3+3=0.4.设平面α,β的一个法向量分别为u =(1,2,-2),v =(-3,-6,6),则α,β的位置关系为____________. 答案 平行解析 ∵v =-3(1,2,-2)=-3u ,∴α∥β.5.已知直线l ∥平面ABC ,且l 的一个方向向量为a =(2,m ,1),A (0,0,1),B (1,0,0),C (0,1,0)则实数m 的值是________. 答案 -3解析 ∵l ∥平面ABC ,∴存在实数x ,y ,使a =xAB →+yAC →,AB →=(1,0,-1),AC →=(0,1,-1), ∴(2,m ,1)=x (1,0,-1)+y (0,1,-1)=(x ,y ,-x -y ), ∴⎩⎪⎨⎪⎧2=x ,m =y ,1=-x -y ,∴m =-3.1.知识清单:(1)线线平行的向量表示. (2)线面平行的向量表示. (3)面面平行的向量表示. 2.方法归纳:坐标法、转化化归.3.常见误区:通过向量和平面平行直接得到线面平行,忽略条件直线不在平面内.1.与向量a =(1,-3,2)平行的一个向量的坐标是( )A.⎝ ⎛⎭⎪⎫13,1,1 B .(-1,-3,2) C.⎝ ⎛⎭⎪⎫-12,32,-1 D .(2,-3,-22)答案 C解析 a =(1,-3,2)=-2⎝ ⎛⎭⎪⎫-12,32,-1.2.若平面α,β的一个法向量分别为m =⎝ ⎛⎭⎪⎫-16,13,-1,n =⎝ ⎛⎭⎪⎫12,-1,3,则( )A .α∥βB .α⊥βC .α与β相交但不垂直D .α∥β或α与β重合答案 D解析 因为n =-3m ,所以m ∥n ,所以α∥β或α与β重合.3.已知直线l 的方向向量是a =(3,2,1),平面α的法向量是u =(-1,2,-1),则l 与α的位置关系是( ) A .l ⊥αB .l ∥αC .l 与α相交但不垂直D .l ∥α或l ⊂α答案 D解析 因为a ·u =-3+4-1=0,所以a ⊥u .所以l ∥α或l ⊂α.4.(多选)若直线l 的一个方向向量为d =(6,2,3),平面α的一个法向量为n =(-1,3,0),则直线l 与平面α的位置关系是( ) A .垂直B .平行C .直线l 在平面α内D .不能确定答案 BC解析 ∵d ·n =-6+2×3+0=0,∴d ⊥n ,∴直线l 与平面α的位置关系是直线l 在平面α内或平行.5.已知平面α的法向量是(2,3,-1),平面β的法向量是(4,λ,-2),若α∥β,则λ的值是( )A .-103B .6C .-6 D.103答案 B解析 ∵α∥β,∴α的法向量与β的法向量也互相平行. ∴24=3λ=-1-2,∴λ=6. 6.已知平面α内的三点A (0,0,1),B (0,1,0),C (1,0,0),平面β的一个法向量为n =(-1,-1,-1),且β与α不重合,则β与α的位置关系是________. 答案 α∥β解析 AB →=(0,1,-1),AC →=(1,0,-1),n ·AB →=(-1,-1,-1)·(0,1,-1)=-1×0+(-1)×1+(-1)×(-1)=0,n ·AC →=(-1,-1,-1)·(1,0,-1)=-1×1+0+(-1)·(-1)=0, ∴n ⊥AB →,n ⊥AC →.∴n 也为α的一个法向量,又 α与β不重合, ∴α∥β.7.若a =⎝ ⎛⎭⎪⎫x ,2y -1,-14是平面α的一个法向量,且b =(-1,2,1),c =⎝ ⎛⎭⎪⎫3,12,-2均与平面α平行,则向量a =________. 答案 ⎝ ⎛⎭⎪⎫-952,126,-14解析 由题意,知⎩⎪⎨⎪⎧a ·b =0,a ·c =0,即⎩⎪⎨⎪⎧-x +4y -94=0,3x +y =0,解得⎩⎪⎨⎪⎧x =-952,y =2752,所以a =⎝ ⎛⎭⎪⎫-952,126,-14.8.已知α,β为两个不重合的平面,设平面α与向量a =(-1,2,-4)垂直,平面β与向量b =(-2,4,-8)垂直,则平面α与β的位置关系是________.答案 平行解析 由题意得a ,b 分别为α,β的一个法向量,又a ∥b ,∴α∥β.9.如图,在三棱柱ABC -A 1B 1C 1中,侧棱垂直于底面,AB ⊥BC ,E ,F 分别为A 1C 1和BC 的中点.求证:C 1F ∥平面ABE .证明 如图,以B 为坐标原点,分别以BC ,BA ,BB 1所在直线为x 轴、y 轴、z 轴建立如图所示的空间直角坐标系. 设BC =a ,AB =b ,BB 1=c ,则B (0,0,0),A (0,b ,0),C 1(a ,0,c ),F ⎝ ⎛⎭⎪⎫a 2,0,0,E ⎝ ⎛⎭⎪⎫a 2,b2,c . 所以AB →=(0,-b ,0),AE →=⎝ ⎛⎭⎪⎫a2,-b 2,c .设平面ABE 的一个法向量为n =(x ,y ,z ), 则⎩⎪⎨⎪⎧n ·AB →=0,n ·AE →=0,即⎩⎪⎨⎪⎧-by =0,a 2x -b2y +cz =0,令x =2,则y =0,z =-ac,即n =⎝⎛⎭⎪⎫2,0,-a c.又C 1F —→=⎝ ⎛⎭⎪⎫-a 2,0,-c ,所以 n ·C 1F —→=0,又C 1F ⊄平面ABE , 所以C 1F ∥平面ABE .10.已知棱长为1的正方体ABCD -A 1B 1C 1D 1中,E ,F ,M 分别是A 1C 1,A 1D 和B 1A 上任意一点.求证:平面A 1EF ∥平面B 1MC . 证明如图,建立空间直角坐标系Dxyz ,A 1(1,0,1),B 1(1,1,1),C 1(0,1,1),A (1,0,0),D (0,0,0),C (0,1,0),则A 1C 1—→ =(-1,1,0), B 1C —→ =(-1,0,-1), DA 1—→=(1,0,1), B 1A —→=(0,-1,-1),设A 1E —→=λA 1C 1—→,A 1F —→=μA 1D —→,B 1M —→=v B 1A —→(λ,μ,v ∈R ,且均不为0). 设n 1=(x 1,y 1,z 1),n 2=(x 2,y 2,z 2)分别是平面A 1EF 与平面B 1MC 的法向量, 可得 ⎩⎪⎨⎪⎧ n 1·A 1E —→=0,n 1·A 1F —→=0,可得⎩⎪⎨⎪⎧n 1·A 1C 1—→=0,n 1·DA 1—→=0,即⎩⎪⎨⎪⎧-x 1+y 1=0,x 1+z 1=0,所以可取n 1=(1,1, -1). 由⎩⎪⎨⎪⎧n 2·B 1M —→=0,n 2·B 1C —→=0,可得⎩⎪⎨⎪⎧n 2·B 1A —→=0,n 2·B 1C —→=0,即⎩⎪⎨⎪⎧-y 2-z 2=0,-x 2-z 2=0,可取n 2=(1,1,-1),所以n 1=n 2,所以n 1∥n 2, 所以平面A 1EF ∥平面B 1MC .11.如图,在正方体AC 1中,PQ 与直线A 1D 和AC 都垂直,则直线PQ 与BD 1的关系是( )A .异面直线B .平行直线C .垂直不相交D .垂直且相交 答案 B解析 设正方体的棱长为1,取D 点为坐标原点建系后,DA 1—→=(1,0,1), AC →=(-1,1,0),设PQ →=(a ,b ,c ),则⎩⎪⎨⎪⎧a +c =0,-a +b =0,取PQ →=(1,1,-1),∵BD 1—→=(0,0,1)-(1,1,0)=(-1,-1,1)=-PQ → , ∴PQ →∥BD 1—→ , ∴PQ ∥BD 1.12.如图,正方形ABCD 与矩形ACEF 所在平面互相垂直,AB =2,AF =1,M 在EF 上,且AM ∥平面BDE .则M 点的坐标为( )A .(1,1,1) B.⎝ ⎛⎭⎪⎫23,23,1 C.⎝⎛⎭⎪⎫22,22,1 D.⎝⎛⎭⎪⎫24,24,1 答案 C解析 方法一 以C 为原点,建立空间直角坐标系如图所示.则C (0,0,0),D (2,0,0),B (0,2,0),E (0,0,1),A (2,2,0), DE →=(-2,0,1),BD →=(2,-2,0),设M (a ,a ,1),平面BDE 的法向量为n =(x ,y ,z ),则⎩⎪⎨⎪⎧n ·DE →=0,n ·BD →=0,即⎩⎨⎧-2x +z =0,2x -2y =0,令z =2,则x =1,y =1,所以n =(1,1,2), 又AM →=(a -2,a -2,1), ∴AM →·n =a -2+a -2+2=0, ∴a =22,即M ⎝ ⎛⎭⎪⎫22,22,1. 方法二 设AC 与BD 相交于O 点,连接OE ,由AM ∥平面BDE ,且AM ⊂平面ACEF ,平面ACEF ∩平面BDE =OE , 所以AM ∥EO ,又O 是正方形ABCD 对角线交点, 所以M 为线段EF 的中点.在空间直角坐标系中,E (0,0,1),F (2,2,1). 由中点坐标公式,知点M 的坐标为⎝⎛⎭⎪⎫22,22,1. 13.(多选)如图,在平行六面体ABCD -A 1B 1C 1D 1中,点M ,P ,Q 分别为棱AB ,CD ,BC 的中点,平行六面体的各棱长均相等.下列结论中正确的是( )A .A 1M ∥D 1P B. A 1M ∥B 1QC .A 1M ∥平面DCC 1D 1 D .A 1M ∥平面D 1PQB 1 答案 ACD解析 因为A 1M —→=A 1A —→+AM →=A 1A —→+12AB →,D 1P —→=D 1D —→+DP →=A 1A —→+12AB → ,所以A 1M —→∥D 1P —→,从而A 1M ∥D 1P ,可得ACD 正确. 又B 1Q 与D 1P 不平行,故B 不正确.14.在正方体ABCD -A 1B 1C 1D 1中,棱长为a ,M ,N 分别为A 1B ,AC 的中点,则MN 与平面BB 1C 1C 的位置关系是________. 答案 平行解析 建立如图所示的空间直角坐标系,设正方体的棱长为2,则A (2,2,2),A 1(2,2,0),C (0,0,2),B (2,0,2), ∴M (2,1,1),N (1,1,2), ∴MN →=(-1,0,1).又平面BB 1C 1C 的一个法向量为n =(0,1,0),∵-1×0+0×1+1×0=0, ∴MN →⊥n ,∴MN ∥平面BB 1C 1C .15.直线l 的方向向量s =(-1,1,1),平面α的法向量为n =(2,x 2+x ,-x ),若直线l ∥平面α,则实数x 的值为( ) A .-2 B .- 2 C. 2 D .± 2 答案 D解析 ∵直线l 的方向向量s =(-1,1,1),平面α的法向量为n =(2,x 2+x ,-x ),直线l ∥平面α,∴x 2-2=0,解得x =± 2.16.如图,四棱锥P -ABCD 中,PA ⊥平面ABCD ,底面ABCD 为直角梯形,∠ABC =∠BAD =90°,PA =AB =BC =12AD =1.问:在棱PD 上是否存在一点E ,使得CE ∥平面PAB ?若存在,求出E 点的位置;若不存在,请说明理由.解 分别以AB ,AD ,AP 为x ,y ,z 轴建立空间直角坐标系,如图.则P (0,0,1),C (1,1,0),D (0,2,0), 设E (0,y ,z ),则 PE →=(0,y ,z -1), PD →=(0,2,-1),∵PE →∥PD →,∴y 2=z -1-1,① ∵AD →=(0,2,0)是平面PAB 的法向量, CE →=(-1,y -1,z ),∴由CE ∥平面PAB ,可得CE →⊥AD →, ∴(-1,y -1,z )·(0,2,0)=2(y -1)=0, ∴y =1,代入①式得z =12.∴E 是PD 的中点,即存在点E 为PD 中点时,CE ∥平面PAB .。

卡萨帝洗衣机 C9 Y13BL13L2U1说明书

卡萨帝洗衣机 C9 Y13BL13L2U1说明书

洗衣机使用说明书型号C9 Y13BL13L2U1• 本说明书为通用手册• 本公司保留说明书解释权• 产品外观请以实物为准• 阅后请与发票一并妥善保存• 如遇产品技术或软件升级,恕不另行通知• 本产品只适合在中国大陆销售和使用1. 产品介绍1 1.1. 产品部件1 1.1.1. 正面1 1.1.2. 背面1 1.1.3. 附件2 1.2. 技术规格3 1.2.1. 技术数据3 1.2.2. 产品执行标准4 1.2.3. 产品尺寸及安装要求4 1.2.4. 测试程序5 1.3. 产品特色61.3.1. 产品特色62. Wi-Fi 连接7 2.1. APP下载7 2.1.1. 下载海尔智家客户端7 2.1.2. 注册账号7 2.2. 智慧物联功能7 2.2.1. 智慧物联功能7 2.2.2. 联网配置方法7 2.2.3. 云程序在线下载功能72.2.4. 在线洗功能73. 使用说明9 3.1. 安全注意事项9 3.1.1. 图示说明9 3.1.2. 警告类9 3.1.3. 注意类10 3.2. 洗衣机的安装10 3.2.1. 包装运输部件的拆卸11 3.2.2. 粘贴吸音海绵14 3.2.3. 底脚的调节15 3.2.4. 连接进水管17 3.2.5. 放置排水管19 3.2.6. 安装烘干支架21 3.3. 洗涤注意事项23 3.3.1. 不可洗涤和烘干的衣物23 3.3.2. 不可烘干的衣物23 3.3.3. 检查待洗衣物24 3.3.4. 衣物分类洗涤253.3.5. 重污衣物预处理27 3.3.6. 衣物重量参考29 3.4. 洗衣操作29 3.4.1. 快速上手29 3.4.2. 控制面板33 3.4.3. 选择模式34 3.4.4. 洗涤程序的选择使用35 3.4.5. 烘干程序的选择使用35 3.4.6. 护理程序的选择使用35 3.4.7. 养护程序的选择使用36 3.4.8. 洗涤剂、柔顺剂的使用方法36 3.5. 程序及功能38 3.5.1. 洗涤程序38 3.5.1.1. 温馨提示38 3.5.1.2. 智慧洗38 3.5.1.3. 衬衣38 3.5.1.4. 大件38 3.5.1.5. 羊毛38 3.5.1.6. 丝绸38 3.5.1.7. 羽绒38 3.5.1.8. 毛巾38 3.5.1.9. 速洗38 3.5.1.10. 单脱38 3.5.1.11. 漂+脱38 3.5.1.12. 窗帘38 3.5.1.13. 棉麻38 3.5.1.14. 化纤38 3.5.1.15. 童装38 3.5.1.16. 运动服38 3.5.1.17. 内衣38 3.5.1.18. 冲锋衣38 3.5.1.19. 强力洗38 3.5.1.20. 云程序38 3.5.1.21. 烫烫净38 3.5.1.22. 筒自洁38 3.5.2. 烘干程序38 3.5.2.1. 温馨提示38 3.5.2.2. 智慧烘39 3.5.2.3. 大件393.5.2.4. 羊毛39 3.5.2.5. 丝绸39 3.5.2.6. 羽绒39 3.5.2.7. 毛巾39 3.5.2.8. 定时39 3.5.2.9. 衬衣39 3.5.2.10. 棉麻39 3.5.2.11. 化纤39 3.5.2.12. 童装39 3.5.2.13. 运动服39 3.5.2.14. 内衣39 3.5.2.15. 冲锋衣39 3.5.2.16. 支架烘39 3.5.2.17. 云程序39 3.5.3. 护理程序39 3.5.3.1. 温馨提示39 3.5.3.2. 衬衣39 3.5.3.3. 羊毛39 3.5.3.4. 羽绒39 3.5.3.5. 貂皮39 3.5.3.6. 丝绸39 3.5.3.7. 精致家纺39 3.5.3.8. 大件39 3.5.3.9. 毛呢40 3.5.3.10. 亚麻40 3.5.3.11. 云程序40 3.5.3.12. 皮毛一体40 3.5.3.13. 毛绒玩具40 3.5.3.14. 婴童暖衣40 3.5.3.15. 西装40 3.5.3.16. 冲锋衣40 3.5.3.17. 蚕丝被40 3.5.3.18. 奢护40 3.5.4. 养护程序40 3.5.4.1. 温馨提示40 3.5.4.2. 皮草养护40 3.5.4.3. 皮革养护40 3.5.4.4. 织物靓色40 3.5.4.5. 织物香护403.5.5. 特有功能40 3.5.5.1. 童锁40 3.5.5.2. 静音40 3.5.5.3. 门锁41 3.5.5.4. 预约41 3.5.5.5. 筒灯41 3.5.5.6. 香薰41 3.5.5.7. 洗烘联动42 3.5.5.8. 养护功能42 3.5.5.9. 智能投放43 3.5.5.10. NFC智控功能43 3.5.5.11. 推弹自动开门44 3.5.5.12. 光等离子除菌44 3.5.5.13. 特渍和附加功能44 3.5.5.14. 紫外除菌45 3.5.6. 系统设置45 3.5.6.1. 系统设置45 3.6. 清洁保养45 3.6.1. 清理上筒线屑过滤器45 3.6.2. 清洗排水过滤器47 3.6.3. 清洗洗衣液、柔顺剂投入盒49 3.6.4. 清洗进水阀接头过滤网50 3.6.5. 清理雾化喷头523.6.6. 应急开门操作534. 售后服务55 4.1. 疑问解答55 4.1.1. 故障排除55 4.1.2. 显示代码及处理方法57 4.2. 有害物质59 4.2.1. 有害物质名称与含量59 4.3. 保修说明60 4.3.1. 洗衣机保修说明601. 产品介绍1.1. 产品部件1.1.1. 正面本说明书中所有的图片均为示意图。

山东中职英语U1L2-Schedule our time wisely

山东中职英语U1L2-Schedule our time wisely

演讲
6. adjust our schedule 7. adjust himself to… 8. be willing to do…
调整计划 适应某事 愿意做某事
Read aloud
1. No matter what time zone 2. lie in the Earth's north temperate zone. 3. schedule our time wisely. 4. be scheduled to give us a speech. 5. adjust our schedule. 6. adjust himself to the new job.
Phrases for Words to learn
1. lie in …
位于。。。
2. in the northern temperate zone在北温带
3. schedule our time wisely
巧妙的安排时间
4. be scheduled to do …
计划做某事
5. give us a speech

2. schedule 安排,计划
1. We should schedule our time wisely. 我们应该巧妙地安排时间。
2. Mr. Lin is scheduled to give us a speech tomorrow. 林先生定于明天演讲。 = plan to do
1. schedule our time wisely 巧妙的安排时间 2. be scheduled to do …计划做某事 3. give us a speech 演讲
Task 2 句型
How many hours do you spend on your study each day?

2024新仁爱版七年级英语U1L2 Function and Pronunciation教案

2024新仁爱版七年级英语U1L2  Function and Pronunciation教案

Unit 1 Let’s Be Friends
Lesson 2 Function and Pronunciation
I. Material analysis
Function内容解读:本部分内容为听力练习活动,通过听力练习的形式将学生带入“进入新班级、结交新同学”的情境中,通过询问籍贯、班级和年龄学习重点词汇和功能句。

首先通过复习数字来巩固旧知识,并且在听前预测图片,为听力练习活动做准备。

然后进行听力练习,音频播放2遍,内容围绕露露向康康介绍新同学肖雅展开。

活动通过排列图片和完成名片信息两种形式帮助学生学习和巩固本单元有关打招呼和介绍的功能句。

最后,引导学生在真实语境中运用所学语言介绍小组成员,达到学以致用的目的。

Pronunciation内容解读:本部分学习26个字母,首先通过听、读、写的活动,学习26个字母的读音和大小写的书写,并通过听字母歌、填写所缺字母的方式帮助学习巩固26个字母。

最后通过听力将字母排序,再根据所给字母写出相应的大小写,巩固字母的发音和书写。

II. Teaching aims
通过本课的学习,学生能够:
1. 掌握数字13-19的英文拼写,归纳其构词法。

2. 根据所给文本,提取具体信息,完成人物信息卡。

3. 编写对话,相互认识,积极主动交朋友。

4. 正确朗读26个字母,掌握其顺序并能规范书写。

III. Teaching procedures
IV. Blackboard design。

2024年秋新冀教版三年级上册英语教学课件 U1L2

2024年秋新冀教版三年级上册英语教学课件 U1L2

I’m fine. How are you?
I’m fine, thanks.
How do they say goodbye?
Goodbye!
Bye! See you later!
1.“How are you? ”的用法①
How are you?
I'm fine,thanks.
熟人之间的问候语。
02
新对话。
03 完成练习帮的相关练习。
同学们,通过这节课的学习, 你有什么收获呢?
谢谢 大家
爱心.诚心.细心.耐心,让家长放心.孩子安心。
bye-bye再见
bye再见
Goodbye, Leilei.
bye 再见
goodbye再见
—Goodbye! —Bye!
• Presentation
Who are they? How do they greet each other?
How do they greet?
Hi! How are you?
Unit 1 Hello!
• Lesson 2 How are you?
冀教版英语三年级(上)
• Let’s review
Li Ming
Jenny
Danny
• Warming up
How are you?
fine 好的
well健康的
—How are you? —I’m fine.
பைடு நூலகம்
goodbye 再见
• Summary
1.—How are you? —I’m fine,thanks.
2.Goodbye! 3.Bye! 4.See you later!
Words

英语五年级下册U1L2教案

英语五年级下册U1L2教案

第二课时A Let’s Learn Ask and write【学习内容】1.学习eat breakfast, do morning exercises, have English class, play sports, eat dinner五个动词短语。

2.学习询问作息时间的问答句:When do you …? I usually … at…3.学习每天应当遵守的生活习惯和规律。

【课标与教材分析】依据新课标,要求小学五年级学生能听懂课堂活动中简单的提问;能听懂常用指令和要求并做出适当的反应;能就所熟悉的个人情况进行简短对话;能认读所学词语,能根据拼读的规律,读出简单的单词;能按要求用简单的英语做游戏,能体会到英语学习的乐趣;在学习中集中注意力;敢于开口,表达中不怕出错误;积极参与各种课堂学习活动,积极与他人合作,共同完成学习任务。

这是本单元的第二课时,“Let’s learn”为词汇学习课,通过学习一些表示日常活动的动词短语来进一步学习如何询问他人的作息时间并作答。

“Ask and write”为以上知识的应用。

【学情分析】在四年级下册Unit2教材中,学生已经学习过一些表示日常活动的动词短语,并且在本单元第1课时中已初步学习如何询问别人的作息时间并作答,本节课将在进一步学习一些表示日常活动的动词短语的基础上熟悉如何询问别人的作息时间并作答。

【学习目标】一、能力目标:能够使用频度副词和动词短语问答作息时间,如:When do you do morning exercises? I usually …at…二、知识技能目标:1.能听、说、读、写单词“exercise”和动词短语“eat breakfast”, “do morning exercises”, “have ... class”, “play sports”, “eat dinner”;能听、说、认读单词“a.m. ”, “p. m. ”。

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四、




Summary:read all the words three times
Step6. Homework:Write English words three times and Chinese meaning one



五、ቤተ መጻሕፍቲ ባይዱ




Dictation



教学反思:




aobtain all the words’ prounciation




一、




Step1. Warm up:T:Good morning class S:Good morning teacher



二、




Presentation:T points tothe English book, review all the words together.
Production:Ask the students who are not familiar with the difficult words to read again and again. Let S read and check in their own groups. Silent reading, loud reading



三、




Practice:First check if all the students obtain all the words’ pronounciation then teach the difficult words, such as, subject, computer studies, favourite.
“零作业”理念下的三环节活动化教学设计
时间
年月日
总第课时
本单元第课时
课题
Words of Unit 1
课型
Revision




Student can read the words fluently. S can pronounce the words when they see the words or the Chinese meaning.
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