发生了什么事 用英文怎么说

what; What"s up; What"s the matter

whats up What"s going on what"s wrong with .....

What"s going on

yesuff1fwhat"s upuff1f

都可以的，不能回答多又不能回答少，

What"s the matter?

what"supwhat"sthematterwhat"swrongwithyou

有什么事?What"s up?What is the matter?What?Anything wrong?

What‘s the matter？

what“S wrong？

译 文What"s the matter?

What hell it is! (口语)

whathadhappenedtotay？今天发生什么事，过去已经发生的用过去完成时

1.Front desk：Can I help you? 服务台：请问有什么事吗? 2.Attendant：How can I help you,miss? 站务员：小姐,请问有什么事吗? 3.Somy Electronics：May I help you? 索米公司：请问有什么事吗? 4.This is Deborah Thompson.Can I help you? 我是戴柏拉·汤普森.请问有什么事吗? 5.Hello,sir.Is there anything I can do for you? 先生.请问有什么事需要帮忙吗?

What matter do you have?

好像不行 take place 指 非偶然性的还是 what happened好

“是什么事情？”参考译文如下：1）What"sthematter?2)What"sup?3)What"shappened?4)What"swrong?5)What"sgoingon?希望上述答案对您有所帮助，祝您好运。

what was that? what happened?what was that event? 这些都OK 看你用在哪里罗~

Yes?What"s up?What?

如果意思是问“请问什么事？，用" what can I do for you ? "或者 " may I help you ? "比用"what is up? "更为礼貌与亲切温和。如果意思是问“发生什么事了？”， 用 "what happened? " 即可

what"s up?

如果询问对方是谁的话就要用whoisthat要问有什么事就要用canihelpyou

can i help you？

what happenduff1f

what"s worng?

It"s none of my business.It"s not my burden.for all I care / for what I careI have nothing to do with it.

what“S wrong？

What"sthematter?What"swrong?Whathappened?这三种讲法都是“怎么了，有什么事吗，发生什么事情了吗”的意思，楼主可以任意选择使用^__^

What"up?

Do the right thing at the proper time.

Not my thing

问题一：各种事情用英语表达怎么说 各种事情 All kinds of things 各种事情 All kinds of things 问题二：事情解决了吗 用英语怎么说 Is it settled ? 问题三：事情经过用英语怎么说 事情经过 the whole story 讲述某人所看到的事情经过 relate *** "s version of the incident 我已经诚实地把整个事情经过讲出来了。 I have told the whole story on the level 问题四：小事情用英语怎么说 little case 问题五：事情的经过是这样的 用英语怎么说 事情经过 the whole story 讲述某人所看到的事情经过 relate *** "s version of the incident 我已经诚实地把整个事情经过讲出来了。 I have told the whole story on the level 问题六：有趣的事情用英文怎么说 interesting things 问题七：故事事情是这样的？ 用英语怎么说？

问题一：各种事情用英语表达怎么说 各种事情 All kinds of things 各种事情 All kinds of things 问题二：事情解决了吗 用英语怎么说 Is it settled ? 问题三：事情经过用英语怎么说 事情经过 the whole story 讲述某人所看到的事情经过 relate *** "s version of the incident 我已经诚实地把整个事情经过讲出来了。 I have told the whole story on the level 问题四：小事情用英语怎么说 little case 问题五：事情的经过是这样的 用英语怎么说 事情经过 the whole story 讲述某人所看到的事情经过 relate *** "s version of the incident 我已经诚实地把整个事情经过讲出来了。 I have told the whole story on the level 问题六：有趣的事情用英文怎么说 interesting things 问题七：故事事情是这样的？ 用英语怎么说？

Tom, what"s going on?

什么：WHAT

What can I do for you？ What do you want？ What do you do？

你在学校有什么事情？What do you do at school?What are you doing at school?

none of my business

what happened to sb.？

事物的英文是thing。thing，读作：英[θu026au014b]，美[θu026au014b]。释义：n.事情；东西；事物；情况。复数：things。词源：直接源自古英语的thing，意为事情。短语：whole thing整个这件事。wrong thing错事。among other things除了别的以外（还有）。for one thing首先。thing的例句1、He flung his things on and rushed out the door.他匆匆穿上衣服，奔出门去。2、What"s the next thing to do?下一步该做什么？3、This suitcase is the thing for me.这只手提箱正合我的需要。4、We should get the most basic thing.我们应该把基本的东西弄好。

Can I help you?

Whatdidyoudothisweek?是一般过去时，只是问你这周做了什么，没有其它含义了；Whathaveyoudonewithinthisweek？是现在完成时，通常是这周内做的事对现在造成了某种影响。根据语境来选择吧。

1. 上周你做了什么 Last weekend,I have a good time!On monday evening I went to my cousin"s birthday party.And on Tuesday I went go the dentist.On Wednesday,I had tennis training with the school team.And I has to study for my chemissty test on Thursday.On Friday erening ,I went to the movies with some friends.。 2. 求一篇你上周做了什么的英语作文 I had a happy weekend last week. On Saturday morning, I watched TV and helped my mother wash clothes. In the afternoon, I cleaned three bedrooms in my house-- mine, my parents" and my brother"s. On Sunday, I played football in the park. Then I went to my grandparents" house. Grandpa played the piano! The whole family was so happy. Later, we wanted to swim. But it was too cold. This was last weekend. 《翻译》 上周我过了一个快乐的周末。 星期六的早上，我看电视，并帮助我的妈妈洗衣服。在下午，我打扫三个卧室在我家里，我的，我的父母和我弟弟的。 星期天，我在公园里踢足球。然后我去我的祖父母的房子。爷爷弹钢琴！整个家庭是如此的幸福。后来，我们想游泳。但是它太冷了。 3. 写一篇介绍你上周做了什么的英语作文 80词左右 初二上册水平的 My last weekend Do you know?I had a really busy weekend.On Saturday morning,I played tennis with my father,it was very interesting.On saturday afternoon,I did my homework at home.On Sunday morning,I went to run and helped my mother did housework.On Sunday afternoon,I went to shopping. On sunday evening,I watched TV with my parents.So you see,I had a really busy weekend.But my weekend was very happy,I like my weekend. 我的上个周末 你知道吗？我有一个很忙碌的周末。星期六上午我打了网球，我的父亲，这是非常有趣的。在星期六下午，我在家做作业。星期日早上，我去帮我母亲做家务跑。在星期日下午，我去购物。星期日晚上，我和父母一起看电视。你看，我有一个很忙碌的周末。而我的周末是很开心，我喜欢我的周末。 4. 上周做了什么事英文作文60字 zhidaoLast week I was very helpful to my mom. I helped to do the chores for her. Such as washing the dishes, cleaned my room, and went to the store to buy things for her. I also went to my aunt"s house last week. My aunt is very young and beatiful. She taught me how to fold little stars. It was very fun. I really enjoyed my last week.。 5. 上周做了什么事英文作文60字 Last week I was very helpful to my mom. I helped to do the chores for her. Such as washing the dishes, cleaned my room, and went to the store to buy things for her. I also went to my aunt"s house last week. My aunt is very young and beatiful. She taught me how to fold little stars. It was very fun. I really enjoyed my last week.。 6. 一篇英语作文题目为我的上周做了什么 This is my home. My home isn"t has a garden. There is a living room in the center of the home. At the back of the living room, there is a bedroom. It"s my grandparents" home. My home has three bedrooms. On the left of the home, there is a bathroom and a kitchen and a bedroom. The bedroom is my parents". On the right of the home, there is my room and a dining room. My room has a desk, a shelf and a bed. On the desk, there is a amp and some books. Now, my mother is cooking in the kitchen. My father and my grandparents are watching TV in the living. Where am I? I am doing my homework in my room. I love my home very much! 7. 你上周做了什么 英语作文 翻译 英文： I had a busy weekend. I did my homework on Saturday morniing. After lunch, I had a nap. In the afternoon, I visited my gandmother and helped her with the housework. In the evening, I did my homework and then surfed the inter. On Sunday morning, my parents and I went to a park and we had a picnic there at noon. In the afternoon, I washed my clothes and cleaned the room. I read books and then watched TV in the evening. I really had a wonderful weekend. 译文： 我有一个忙碌的周末。我在星期六做作业morniing。午饭后，我有一个午睡。在下午，我拜访了我的祖母和帮她做家务。在晚上，我做我的功课，然后上网。在星期日的早上，我和我的父母去了公园，中午我们吃一顿野餐。在下午，我洗衣服和打扫房间。我读的书，晚上看电视。我真的有一个美好的周末。

问题一：没事 用英语怎么说？ 看用在什么语境中。要是别人问你“”发生了什么事？你可以说Nothing(没事)，要是别人关心地问你你“还好吧？”你可以说“It"s alright(没事)” 问题二：没事，英语怎么说？？ 10分 That"s/it"s ok 情景一 Nothing/nothing much/nothing special 情景二 问题三：没事用英语怎么说 【汉语】没事 【英语1】It doesn"t matter 【例句】 Did I wake you? ― Yes, but it doesn"t matter. “我把你吵醒了？”――“是的，不过没关系。” 【英语2】Never mind 【例句】 I think it"s going to cause chaos personally but never mind. 我个人认为它会引起混乱，但是没关系。 【英语3】That"s all right 【例句】 I had a little brush with my wife just now, that"s all right. 我刚与妻子发生了一点口角, 不过没什么. 问题四：没事的 英文怎么说？ It‘s OK. That"s all right. Never mind. 问题五：现在没事了 用英文怎么说 All right now 问题六：没事用英语怎么写? 谢谢。thanks/thank you 没事。sure／you are wele/ not at all 对不起 i am sorry 没事 it"s ok 有什么事吗？what"s up? 没事。　　　Nothing/ nothing much 问题七："没事儿的"用英语怎么说? it doesn"t matter 问题八：没事吧你用英文怎么说 Are you ok ? 问题九：没事 我很好英文是什么 I‘m OK， no worries. It"s all right. I"m fine/OK. 都可以

都是差不多的，请随便选：What do you like to do ?What else do you like to do ?What other things do you like to do?

歌曲名:Rebirth (Explicit Album Version)歌手:Bone Thugs-N-Harmony专辑:Uni5: The World"S EnemyBone Thugs-N-Harmony - RebirthMaxR&B - Your first R&B/Hiphop source(Thin-C & Krayzie Bone - Chorus)Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.(Layzie Bone)Hold down! Welcome to the showdown! (showdown!)I think it"s "bout time little Layzie let "em know now.Take it to the streets and let the pump, pump go "Pow!"Take my style, let me show you how I go wild.Now you playin" with a fully-grown man, with a fully-blown plan,With a fully-loaded clip. I"ma go up in your sh-t.I don"t play with little kids, I spank that ass, boy you know who we is!(Bone, Bone, Bone!) My homies the greatest! I roll with the best, see?Who in the f-ck wanna test these n-ggas from the S-C-T, C-L-E?We got heat! Y"all know what happened to the thief when the king catch him stealin",got his hands in the cookie jar.Off with his hand! F-ck it, off with his head! Make him stand front and center,Let me see what the rookie got? Bet a n-gga ain"t got nothin",They bluffin"! Tryin" to come up on somethin", bubblin"!I"ma say this really, really, really loud! Y"all wanna rumble, I"ll bust them, rush them!Trust him, never! On a whole "nother level.If God The Creator, then y"all n-ggas" devils.The fight won"t end "til the war get settled.And Bone gonna win "cause them Bone n-ggas" rebels.Playa!… Yeah!… N-gga!(Thin-C & Krayzie Bone - Chorus)Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.(Krayzie Bone)They don"t wanna see me shine! Everybody wanna sound like Bone thoughcome back in the Bone zone! But you beginnin" with the daddy you don"t know.They call me The Granddad – Granddaddy of the Bone flow!Well little lazy rappers, obviously we never figured this would be the lickand we"d be next to shine. And we got everybody screamin" and singin"but these out-of-shape suckas need exercise! So I"ma get up in their mental.I"ma work "em out over the instrumental! Give "em a criminal rhythm, the lyrical nympho!Wanna see the wicked? Better know what you"re in for!First, the fan side could be forgiven – you didn"t know!Second time, I got up in "em like "here we go!"No matter what, they sayin" we still the most realest that ever did it, feel me flow!And everybody want a little bit against a little Krayzie, Layzie, Bizzy, Wish, and Flesh!A little taste so they can test and make "em see how we the bestand I"ll be realer than the rest don"t flex "cause the pump gonna get "em.I"m like a bullet to the chest, suffer a cardiac arrest that"s so hardand I can still get their heart and leave "em dead and give "em all they can get!Send them suckas to the lyric cemetery, or the rap hospital. Never no competition!(Thin-C & Krayzie Bone - Chorus)Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.(Flesh-n-Bone)Come "on, now let me take you back to The Land, you know where the heart of it all.In 1993, when we was up out the scene.The fellas with hell of a harmony with the flow hooked up with Eazy-Eand shook up the industry and y"all just in time to get another phase.This certainly is somethin" that you wouldn"t wanna miss!The drama when it hit the fan, we got "em trippin" off the gift,and split a wig up with a pretty sick twist.The Ruger like a surgeon and it"s on, exactly what I cut you with is sharper than a scalpel.Actually, it"s too many Bone Thug clones and they all malpractice, arrested, and send "em to the gallows!My trues brought a style that"s unfound and you can feel it naturally.But we ain"t no magicians. Really ain"t no thing to make a fraud disappear.Steady givin" what they love to hear, make "em listen up close.Everybody know we got the dough. We choppin" nothin" but missiles, still the n-gga who the greatest!Y"all lost! Can"t even afford the cost, this is authentic and nothin" that"s dealin" with them world-wide bosses!We got the sauce, baby, we got the juice! We keep "em in a frenzy fiendin" for more!On the ThugLine with F.B.G., 7th Sign, and Mo" Thug once again we about to blow!We about to blow! Set it off – explode! Set it off – explode!(Thin-C & Krayzie Bone - Chorus)Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.(Wish Bone)I"ma treat it like a race and I gotta win it! Ahead of you bums with the Bone flow.Thug invented. Haters wanna wonder why them thug n-ggas still gettin" in.Nothin" changed the game like we did so we here, still with it. Gotta tell the truth.We changed things. Bringin" somethin" new that"s everlasting.I"ma keep it real. It"s next to nothin"! Doin" the same thing "cause less creating.Flow just borin", the spit just corny. What happened to old bitin" "self?Writin" battles done face to face. I miss those days.These days, ghost writers, fake artists with nothin" to say.I"ma give it Wish due my street dues. Just stay cool.I know I got you when I need to pop you"ll let loose.And you don"t wanna see a thugsta hit with a Grey Goose.Or we could buy the bar. Just stay cool and we good.Recognize we thug, could of been all hood.The flow"s all love, thugs could of been all hood.Pick up on it, never fully get it – this Bone flow!Smilin", hatin" but you"ll see me on the low! (low) In the game with the number one!Straight from the Cleveland slums. Straight off the block, never hustle to the floor though.Kickin" "em down how them Bone Thugs came through.Yeah, yeah. We took it to another level (level), level (level), level (level)… Yeeaahh!(Thin-C & Krayzie Bone - Chorus)Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.(Bizzy Bone)As soon as I"m receivin" the call, now give me the ball,I run with the dog and keep the balland meet me at the mall on the walland makin" money off the Bone Thugs equipment for sure!With a knife in my back, everybody rappin" fast!But the harmony in it and now that"s too much to pass, now that"s too much to ask.And they pick up a crash course style and change up, come on!My trigger-finger"s itchy from my carpel tunnel.? is written like water flowin" ? is walkin" with seven shovels,the grave-diggers ? nobody understand the man.Clones shutout! ? I"m quicker than a ? wicked mobsteryou pray to God. Do whatever, we get the hustle on in the Spring, Fall!In Summer and the Winter months, we gonna praise Jesus!Dummy representers, like we ain"t said nothin"!Present the flow then grown know where we come from.Sun come shinin", Equinox rhymin", Layzie perfect timin", grab my gun!Much love to my nigga young Hova, Twista, Bun B, Pimp C, A.C. Killer!Get your money, get your paper. Elevate like my n-gga DMX. Here"s a prayer God bless playa!(Thin-C & Krayzie Bone - Chorus)Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.Everybody wanna sound like, sound like, sound like Bone, Bone, Bone!Everybody wanna rap like, rap like, rap like Bone, Bone, Bone!As we continue to pick up the pieces, they follow us Kings "til the sundown.Deadly issues of telekinesis, better show love or lay down.MaxR&B - Your first R&B/Hiphop sourcehttp://music.baidu.com/song/7443445

1、每个人都有其生来的责任，丢弃责任的人，是可耻的。 Everyone has his inherent responsibility. It is shameful to discard it. 2、责任者是为了背负责任而存在的。 The responsible person exists for responsibility. 3、没有比演员更幸运的人了。他们可以不负任何责任而得到荣誉。 There is no luckier person than an actor. They can be honored without any responsibility. 4、我认为，对一切来说，只有热爱才是最好的教师，它远远胜过责任感。 In my opinion, love is the best teacher for everything. It is far better than responsibility. 5、对恋人的每一次承诺都要放上天平，这天平的另一端放的对社会的责任。 Every mitment to a lover should be balanced, and the other end of the scale should be socially responsible. 6、世间的人要对法律负责任。修行的人要对因果负责任。 People in the world are responsible for the law. Men of practice are responsible for cause and effect. 7、否定责任是让人不去承担责任。 Negating responsibility is not to be held accountable. 8、企业家的境界：把关爱注入大地，把责任写上天空。 The realm of entrepreneurs: inject care into the earth and write responsibility into the sky. 9、你不可能代替谁负起责任。这里好比沙漠，我们大家只能适应沙漠。 You can"t take responsibility for who you are. It"s like a desert. We all have to adapt to it. 10、爱是一种责任，不爱了，也要尽到责任。 Love is a kind of responsibility. If you don"t love, you should also do your duty. 11、人生来就是要担负责任的，唯一不用担负责任的只有死人。 Man is born to be responsible. The only one who is not responsible is the dead. 12、男人除了情感就剩下责任了，但责任对一个男人来说蛮重的。 Men have responsibilities besides emotions, but responsibilities are heavy for a man. 13、我不知道什么叫做在一起，我只知道什么叫负责任。 I don"t know what it means to be together. I just know what it means to be responsible. 14、人只因承担责任才是自由的。这是生活的真谛。 Man is free only by taking responsibility. This is the essence of life. 15、没有喜欢就不会有责任感，没有责任感喜欢也不能长久。 If you don"t like it, you will have no sense of responsibility. If you don"t like it, you won"t have a sense of responsibility for a long time. 16、自由意味着责任，这就是为什么大多数人都畏惧它的缘故。 Freedom means responsibility, which is why most people fear it. 17、一个有责任的人，是没有死亡的权力的。 A responsible person has no right to die. 18、历史和哲学负有多种永恒的责任，同时也是简单的责任。 History and philosophy have many eternal responsibilities, but also simple ones. 19、提出目标是管理人员的责任，实际上这是他的主要责任。 Targeting is the responsibility of the manager, which is actually his primary responsibility. 20、一个人越敢于担当大任，他的意气就越风发。 The more daring a man is to assume a great responsibility, the more his spirit grows. 21、责任是你们上辈子的事，我的责任就是放弃责任。 Responsibility is a matter of your past life, and my responsibility is to give up responsibility. 22、男子汉的责任就竭尽全力去做能够做到的事。 A man"s duty is to do what he can. 23、有人说：爱，是一种责任。原来责任，就是一辈子。 Some people say that love is a responsibility. The original responsibility is a lifetime. 24、能力越大，责任就大。 The greater the ability, the greater the responsibility. 25、友谊永远是一个甜蜜的责任，从来不是一种机会。 Friendship is always a sweet responsibility, never an opportunity. 26、你若希望你的孩子总是脚踏实地，就要让他们负些责任。 If you want your children to keep their feet on the ground, let them take some responsibility. 27、生命，如果跟时代的崇高的责任联系在一起，你就会感到它永垂不朽。 Life, if associated with the lofty responsibility of the times, will feel immortal. 28、责任，责任就是一切，至高的愉悦，最深的悲伤。 Responsibility, responsibility is everything, the highest pleasure, the deepest sorrow. 29、自由的第一个意义就是担负自己的责任。 The first meaning of freedom is to take responsibility for oneself. 30、爱和责任往往是一起的，先一步爱了，后面就必然会承担责任。 Love and responsibility often go hand in hand. If you love first, you will surely take responsibility later. 31、尊重他人的有责任感的孩子，产生于爱和管教适当结合的家庭中。 A responsible child who respects others is born in a family where love and discipline are properly bined. 32、我们不能将我们的责任交给下一代人！ We can"t give our responsibility to the next generation! 33、我觉得如果我说喜欢她，就有责任一直喜欢下去，但任何责任对我来说，都太重了。 I think if I say I like her, I have a responsibility to continue to like her, but any responsibility is too heavy for me. 34、领导者的责任，归纳起来，主要地是出主意，用干部两件事。 To sum up, the responsibility of leaders is mainly to make suggestions and employ cadres. 35、沉默是把选择权和两难困境一起交给心急如焚的对方，是不负责任，是躲避伤害。 Silence is to hand over the right of choice and dilemma to the anxious opponent. It is irresponsible and avoids harm. 36、绝不往身上挪责任，但也绝不惧怕承担责任。 Never take responsibility from others, but never fear to take responsibility. 37、人生须知负责任的苦处，才能知道尽责任的乐趣。 Only when we know the suffering of responsibility can we know the joy of doing our duty. 38、一个人，要替自己的所作所为担负全部的责任。 A person should take full responsibility for what he does. 39、当劳动是种快乐时，生活是美的；当劳动是一种责任时，生活就是奴役。 Life is beautiful when work is a pleasure; when work is a duty, life is slavery.

电池 不管制造这个粘土瓶的祖先是否知道有关静电的事情，但可以确定的是古希腊人绝对知道。他们晓得如果磨擦一块琥珀，就能吸引轻的物体。亚里斯多德(Aristotle)也知道有磁石这种东西，它是一种具有强大磁力能吸引铁和金属的矿石。1780年的一天，意大利解剖学家伽伐尼在做青蛙解剖时，两手分别拿着不同的金属器械，无意中同时碰在青蛙的大腿上，青蛙腿部的肌肉立刻抽搐了一下，仿佛受到电流的刺激，而只用一种金属器械去触动青蛙，却并无此种反就。伽伐尼认为，出现这种现象是因为动物躯体内部产生的一种电，他称之为 “生物电”。伽伐尼于1791年将此实验结果写成论文，公布于学术界。伽伐尼的发现引起了物理学家们极大兴趣，他们竞相重复枷伐尼的实验，企图找到一种产生电流的方法，意大利物理学家伏特在多次实验后认为：伽伐尼的 “生物电”之说并不正确，青蛙的肌肉之所以能产生电流，大概是肌肉中某种液体在起作用。为了论证自己的观点，伏特把两种不同的金属片浸在各种溶液中进行试验。结果发现，这两种金属片中，只要有一种与溶液发生了化学反应，金属片之间就能够产生电流。1799年，伏特把一块锌板和一块银板浸在盐水里，发现连接两块金属的导线中有电流通过。于是，他就把许多锌片与银片之间垫上浸透盐水的绒布或纸片，平叠起来。用手触摸两端时，会感到强烈的电流刺激。伏特用这种方法成功的制成了世界上第一个电池—— “伏特电堆”。这个“伏特电堆”实际上就是串联的电池组。它成为早期电学实验，电报机的电力来源。意大利物理学家伏打就多次重复了伽伐尼的实验。作为物理学家，他的注意点主要集中在那两根金属上，而不在青蛙的神经上。对于伽伐尼发现的蛙腿抽搐的现象，他想这可能与电有关，但是他认为青蛙的肌肉和神经中是不存在电的，他推想电的流动可能是由两种不同的金属相互接触产生的，与金属是否接触活动的或死的动物无关。实验证明，只要在两种金属片中间隔以用盐水或碱水浸过的（甚至只要是湿和）硬纸、麻布、皮革或其它海绵状的东西（他认为这是使实验成功所必须的），并用金属线把两个金属片连接起来，不管有没有青蛙的肌肉，都会有电流通过。这就说明电并不是从蛙的组织中产生的，蛙腿的作用只不过相当于一个非常灵敏的验电器而已。 1836年，英国的丹尼尔对 “伏打电堆”进行了改良。他使用稀硫酸作电解液，解决了电池极化问题，制造出第一个不极化，能保持平衡电流的锌—铜电池，又称“丹尼尔电池”。此后，又陆续有去极化效果更好的 “本生电池”和 “格罗夫电池”等问世。但是，这些电池都存在电压随使用时间延长而下降的问题。1860年，法国的普朗泰发明出用铅做电极的电池。这种电池的独特之处是，当电池使用一段使电压下降时，可以给它通以反向电流，使电池电压回升。因为这种电池能充电，可以反复使用，所以称它为“ 蓄电池”。然而，无论哪种电池都需在两个金属板之间灌装液体，因此搬运很不方便，特别是蓄电池所用液体是硫酸，在挪动时很危险。1887年，英国人赫勒森发明了最早的干电池。干电池的电解液为糊状，不会溢漏，便于携带，因此获得了广泛应用。将化学能、光能、热能、核能等直接转换为电能的装置。有化学电池、太阳电池、温差电池、核电池等。通常所说的电池指化学电池。电池的性能参数主要有电动势 、容量、比能量和电阻。电动势等于单位正电荷由负极通过电池内部移到正极时，电池非静电力（化学力）所做的功。电动势取决于电极材料的化学性质，与电池的大小无关。电池所能输出的总电荷量为电池的容量 ，通常用安培小时作单位。在电池反应中，1千克反应物质所产生的电能称为电池的理论比能量。电池的实际比能量要比理论比能量小。因为电池中的反应物并不全按电池反应进行，同时电池内阻也要引起电动势降，因此常把比能量高的电池称做高能电池。电池的面积越大，其内阻越小 。电池的种类很多，常用电池主要是干电池、蓄电池，以及体积小的微型电池 。此外，还有金属-空气电池、燃料电池以及其他能量转换电池如太阳电池、温差电池、核电池等。干电池 一种使用最广泛的化学电池。1865年法国人勒克朗谢在伏打电池的基础上研制了一种碳／二氧化锰／氯化铵溶液／锌体系的湿电池。经发展，干电池有100余种。除了锌 - 锰干电池外，还有镁 -锰干电池、锌 - 氧化汞干电池、锌-氧化银干电池等 。由于干电池的氧化和还原反应的可逆性很差，用完后一般不能用充电方法使正、负极活性物质恢复到原来状态，因此干电池又称为一次电池。最常用的干电池是锌-锰干电池，有糊式、纸板式、碱式和叠层式几种。糊式锌-锰干电池 由锌筒 、电糊层、二氧化锰正极 、炭棒、铜帽等组成。最外面的一层是锌筒，它既是电池的负极又兼作容器，在放电过程中它要被逐渐溶解；中央是一根起集流作用的碳棒；紧紧环绕着这根碳棒的是一种由深褐色的或黑色的二氧化锰粉与一种导电材料（石墨或乙炔黑）所构成的混合物，它与碳棒一起构成了电池的正极体，也叫炭包。为避免水分的蒸发，干电池的上部用石蜡或沥青密封 。锌-锰干电池工作时的电极反应为锌极：Zn→Zn2+＋2e碳极:纸板式锌-锰干电池 在糊式锌-锰干电池的基础上改进而成。它以厚度为 70～100微米的不含金属杂质的优质牛皮纸为基，用调好的糊状物涂敷其表面，再经过烘干制成纸板，以代替糊式锌-锰干电池中的糊状电解质层。纸板式锌-锰干电池的实际放电容量比普通的糊式锌 -锰干电池要高出2～3倍。标有“高性能”字样的干电池绝大部分为纸板式。碱性锌 -锰干电池 其电解质由汞齐化的锌粉、35％的氢氧化钾溶液再加上一些钠羧甲基纤维素经糊化而成 。由于氢氧化钾溶液的凝固点较低、内阻小 ，因此碱性锌 -锰干电池能在－20℃温度下工作，并能大电流放电。碱性锌 - 锰干电池可充放电循环40多次，但充电前不能进行深度放电（保留60％～70％的容量），并需严格控制充电电流和充电期终的电压。叠层式锌-锰干电池 由几个结构紧凑的扁平形单体电池叠在一起构成。每一个单体电池均由塑料外壳、锌皮、导电膜以及隔膜纸、炭饼（正极）组成。隔膜纸是一种吸有电解液的表面有淀粉层的浆层纸，它贴在锌皮的上面；隔膜纸上面是炭饼。隔膜纸如同糊式干电池的电糊层，起隔离锌皮负极和炭饼正极的作用。叠层式锌 - 锰干电池减去了圆筒形糊式干电池串联组合的麻烦，其结构紧凑、体积小、体积比容量大，但贮存寿命短且内阻较大，因而放电电流不宜过大。蓄电池 通过充电将电能转变为化学能贮存起来，使用时再将化学能转变为电能释放出来的一种化学电池。其转变的过程是可逆的。当蓄电池已完全放电或部分放电后，两电极板表面形成新的化合物，这时若用适当的反向电流通入蓄电池，就可以使在放电过程中形成的化合物还原为原先的活性物质，供下次放电再用，此过程叫充电，即将电能以化学能的形式贮存在蓄电池中。电池接通负载供给外电路电流的过程叫放电 。 蓄电池的充电和放电过程可以重复循环多次，故蓄电池又称为二次电池 。 按所使用的电解质溶液的不同，蓄电池分为酸性和碱性两大类。按正负极板所使用的活性物质材料又有铅蓄电池、镉镍、铁镍、银锌、镉银蓄电池等几种。铅蓄电池为酸性电池，后四种为碱性电池。铅蓄电池 由正极板群、负极板群、电解液和容器等组成。充电后的正极板是棕褐色的二氧化铅（PbO2），负极板是灰色的绒状铅（Pb），当两极板放置在浓度为27％～37％的硫酸( H2SO4 )水溶液中时 ，极板的铅和硫酸发生化学反应，二价的铅正离子（ Pb2+）转移到电解液中，在负极板上留下两个电子( 2e- )。由于正负电荷的引力，铅正离子聚集在负极板的周围，而正极板在电解液中水分子作用下有少量的二氧化铅（ PbO2 ）渗入电解液，其中两价的氧离子和水化合，使二氧化铅分子变成可离解的一种不稳定的物质——氢氧化铅〔Pb（OH4〕）。氢氧化铅由4价的铅正离子（Pb4+）和4个氢氧根〔4（OH）-〕组成。4价的铅正离子（Pb4+）留在正极板上，使正极板带正电。由于负极板带负电，因而两极板间就产生了一定的电位差，这就是电池的电动势。当接通外电路，电流即由正极流向负极。在放电过程中，负极板上的电子不断经外电路流向正极板，这时在电解液内部因硫酸分子电离成氢正离子（H+）和硫酸根负离子（SO42-），在离子电场力作用下，两种离子分别向正负极移动，硫酸根负离子到达负极板后与铅正离子结合成硫酸铅( PbSO2 )。在正极板上，由于电子自外电路流入，而与4价的铅正离子（Pb4+）化合成 2价的铅正离子（ Pb2+），并立即与正极板附近的硫酸根负离子结合成硫酸铅附着在正极上。铅蓄电池正、负极板在放电过程中的化学反应为随着蓄电池的放电，正负极板都受到硫化，同时电解液中的硫酸逐渐减少，而水分增多，从而导致电解液的比重下降在实际使用中，可以通过测定电解液的比重来确定蓄电池的放电程度。在正常使用情况下，铅蓄电池不宜放电过度，否则将使和活性物质混在一起的细小硫酸铅晶体结成较大的体，这不仅增加了极板的电阻，而且在充电时很难使它再还原，直接影响蓄池的容量和寿命。铅蓄电池充电是放电的逆过程。充电时总的化学反应为铅蓄电池的工作电压平稳、使用温度及使用电流范围宽、能充放电数百个循环 、贮存性能好 （ 尤其适于干式荷电贮存）、造价较低，因而应用广泛。采用新型铅合金，可改进铅蓄电池的性能。如用铅钙合金作板栅，能保证铅蓄电池最小的浮充电流、减少添水量和延长其使用寿命；采用铅锂合金铸造正板栅 ，则可减少自放电和满足密封的需要 。此外，开口式铅蓄电池要逐步改为密封式，并发展防酸、防爆式和消氢式铅蓄电池。碱性蓄电池 与同容量的铅蓄电池相比，其体积小，寿命长，能大电流放电，但成本较高。碱性蓄电池按极板活性材料分为铁镍、镉镍、锌银蓄电池等系列。以镉镍蓄电池为例，碱性蓄电池的工作原理是：蓄电池极板的活性物质在充电后，正极板为氢氧化镍〔 Ni（OH）3 〕，负极板为金属镉（ Cd ）；而 放 电 终 止时，正极 板转 变为 氢 氧化 亚镍〔 Ni(OH2)〕， 负极板转 变 为氢 氧 化镉〔Cd (OH) 2〕，电解液多选用氢氧化钾（ KOH）溶液。在充放电过程中总的化由充放电过程中的化学反应可知，电解液仅作为电流的载体而浓度并不发生变化，因而只能根据电压的变化来判断充放电的程度。镉镍密封蓄电池在充电过程中，正极析出氧气，负极析出氢气。由于镉镍密封蓄电池在制造时负极物质是过的，这就避免了氢气的发生；而在正极上产生的氧气，由于电化学作用被负极吸收，因此防止了气体在蓄电池内部集聚，从而保证了蓄电池在密封条件下正常工作。镉镍蓄电池已有了几十年的历史，最初用作牵引、起动、照明及信号电源，现代用作内燃机车、飞机的起动及点火电源。60年代制成的密封式电池则用作人造卫星、携带式电动工具、应急装备的电源。镉镍蓄电池改进的方向之一是采用双极性结构，这种结构的内阻很小，适用于脉冲大电流放电，能满足大功率设备的供电需要；此外，电极采用压成式、烧结式和箔式。金属-空气电池 以空气中的氧气作为正极活性物质，金属作为负极活性物质的一种高能电池。使用的金属一般是镁、铝、锌、镉、铁等；电解质为水溶液。其中锌空气电池已成为成熟的产品。金属 -空气电池具有较高的比能量，这是因为空气不计算在电池的重量之内。锌空气电池的比能量是现生产的电池中最高的，已达 400瓦·小时／千克（Wh／kg），是一种高性能中功率电池，并正向高功率电池的方向发展。目前生产的金属-空气电池主要是一次电池；研制中的二次金属-空气 电 池 为 采 用 更 换 金 属 电 极的 机 械 再 充 电电池 。 由于金属 - 空 气电池工作时要不断地供应空气，因此它不能在密封状态或缺少空气的环境中工作。此外，电池中的电解质溶液易受空气湿度的影响而使电池性能下降；空气中的氧会透过空气电极并扩散到金属电极上，形成腐蚀电池引起自放电 。燃料电池 只要连续供应化学原料就能发生化学反应 ，而将化学能转变为电能的电解质电池。这些化学原料在电池内部（一种原料在正极而另一种在负极）发生反应时，必须防止它们直接反应，否则将产生化学短路，不能从反应中获得电能。适用于燃料电池的化学反应主要是燃烧反应，进入实用阶段的只有氢氧燃料电池。由于氢氧燃料电池要使用贵重金属铂作电极材料，成本过高，因此这种电池现在仅用作宇宙飞船的电源。燃料电池的转换效率高、比能高，工作时无噪声无污染，结构简单。其他能量转换电池 主要有：①太阳电池。将太阳光的能量转换为光能的装置，由半导体制成。当太阳光照射电池表面时，半导体PN结的两侧形成电位差。其效率在10％以上。②温差电池。将两种金属接成闭合回路，并在两接头处保持不同温度时，回路中就会产生温差电动势，这种装置称作温差电偶 。将温差电偶串联成温差电堆时 ，即 构成 温 差电池。也可用半导体材料制成温差电池，其温差效应较强。③核电池。将核能直接转换成电能的装置称做核电池。通常由辐射β射线（高速电子流）的放射性源、收集这些电子的集电器以及绝缘体 3 部分组成。放射性源一端因失去负电而成为正极，集电器一端得到负电成为负极，两电极间形成电位差。这种核电池电压高，但电流小

8、设计制作一个保温杯科学概念：1、热的不良导体，可以减慢物体热量的散失。2、空气是一种热的不良导体。过程与方法：1、根据热传递的原理设计制作保温杯。2、研究哪种保温方法保温效果较好。情感、态度、价值观：激发设计研究保温杯的兴趣，能不断进行尝试和创新。经历佷据热传递的原理设计保温杯的活动过程。经历研究哪种保温方式保温效果好的活动过程为每组准备：不锈钢杯、陶瓷杯、塑料杯；热水、温度计；不同材料的杯子数个，相同材料的杯子五个，配套的盖子；泡沫塑料、毛巾、记录表。一、哪种杯中的水会凉得慢一些1、今天老带来这么多杯子，知道这些杯子分别是用什么材料制成的吗？2、如果在杯中倒入同样多的，相同温度的热水，你们觉得哪个杯子中热水会凉得慢一些？3、学生做出推测，并说出理由。4、观测实验，交流汇报：用手捂在不?材料石子的杯壁上有什么不同的感觉？什么原因引起的？5、小结：热的良导体吸热快散热也快，所以水温降得快；热的不良导体吸热慢，散热也慢，所以水温降得慢。二、讨论怎样使杯中的水凉得慢一些1、你们有什么好办法让杯中的热水凉得慢一些？2、小组讨论：使热水凉得慢的办法。3、小组交流，老师板书。4、你们认为那种保温办法最好？5、学生实验。6、交流实验结果。三、做一个保温杯1、利用提供的材料，小组讨论制作保温杯的方法。2、交流各组制作保温杯的方法，并讨论实验中应注意的事项。3、学生分组实验。4、交流实验结果，汇报哪种保温方法最为有效。5、你们有办法让热水始终保持原来的温度吗？6、小组讨论7、全班交流：保持热水原来温度的方法。8、小结：保温杯只能减缓物体温度的变化，而不能保持物体原来的温度不变。四、保藏冰块比赛1、选择合适的材料制作一个保温杯，杯外的包装厚度不得超过3厘米。2、课外进行保藏冰块的比赛，看看哪组的保温效果最好。板书设计： 设计制作一个保温杯热的良导体-------吸热快，散热快--------水温降得快热的不良导体-------吸热慢，散热也慢-----水温降得慢。左旋肉碱减肥效果非常好,请到官方网站上购买正品请看左旋肉碱8.528.cm官方网站复制官方网址打开

REBIRTH是新生模式 CLASSIC是经典模式新生模式是游戏的主要模式，玩家将在这款移植版中体验到新的陷阱、不同的敌人方位等等，当然玩家可以在生化危机系列中首次体验到触摸屏操作，另外游戏的操作也很接近最新的几代生化危机。玩家可以进行快速180度转身，拔出匕首，更换武器也不用很麻烦地去菜单界面去更换。 经典模式则是让玩家体验到原汁原味的PS版《生化危机》的感觉，陷阱、敌人和控制都完全仿照PS版《生化危机》，也不能使用触摸笔。经典模式中将完全模仿PS版的声音对话。我喜欢玩新生模式