日本成人片在线_久久免费精品视频_国产午夜精品久久久久久免费视_校花撩起jk露出白色内裤国产精品_av影片免费在线观看_国产小视频在线看_最新av免费在线观看_99久久99久久精品国产片_欧美成人猛片aaaaaaa_蜜桃免费网站一区二区三区

Sitting on a chair all day in school can make anyone want to move around. So, more and more teachers are letting students have a ball. By sitting on exercise balls instead of chairs, teachers find students' posture (姿勢) and attention improve.
Dottie Pownall, a fifth-grade teacher in West Virginia, USA, has been using balls as chairs since December 2008. "The students love them", she says. Pownall took a survey of her students. She found that 80% of the students thought sitting on the balls helped them pay more attention to what they were learning.
The teacher, Pisa Witt, felt so strongly about the use of balls as chairs, she started Witt Fitt. This company encourages the use of the balls. And the company educates not only teachers but also students on how to use them. "Our products are used in 24 states, three provinces in Canada, Puerto Rico ('波多黎各) and Japan," says Witt. "Research shows that sitting on the balls makes them sit up straighter. You can slouch (低頭垂肩地坐) on a ball," says Witt, "but it feels awful." Because the students are moving, their blood (血液) increases. That carries more oxygen (氧氣 to the brain (大腦), so the kids have more energy and can focus longer.
"Furthermore, they're fun." says Pownali.
【小題1】 What will happen if a student sits on a chair all day in school? The student will _________.

A.pay more attention to his lessons B.be fun
C.like to move aroundD.sit up straighter
【小題2】 How long has Dottie Pownall used the balls?
A.About three years. B.Only one year.
C.In 2008. D.Since he was a fifth-grade teacher.
【小題3】 In how many countries are the balls used as the students' chairs?
A.Four. B.Three. C.Two. D.One.
【小題4】Teachers choose balls instead of chairs because sitting on balls helps the kids___________.
A.improve the students' posture and attentionB.slouch on the chairs
C.have funD.Both A and C are correct answers.
【小題5】Which is better for kids to study in class, sitting on a chair or sitting on a ball?
A.Sitting on a chair.B.Sitting on a ball.
C.They are the same.D.We don't know.


【小題1】C
【小題1】A
【小題1】A
【小題1】D
【小題1】B

解析

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:初中英語 來源:四川省成都市2006年高中階段教育學(xué)校統(tǒng)一招生考試英語試卷 題型:053

短文填空從下面方框中選出10個單詞,用它們的適當(dāng)形式填入短文空格內(nèi)。使短文意思正確、通順(每詞限用一次)。

  What's the real meaning of the word“peace”?The   1   story may tell us something about it.

  There was once a king who offered an award to an artist who could paint the   2   picture of peace.Many   3   tried.The king looked at all the pictures.But there were only two he really liked and he had to choosebetween them.

  One picture was a calm lake.The lake was a perfect thing for peace because of the high mountains around it.Overhead was a blue sky with white clouds.  4   who saw this picture thought that it was a perfect picture of peace.

  The other picture had mountains too.But they were rugged(高低不平的).Above was the dark sky, from which heavy rain fell.A waterfall was rushing down the side of the mountain.This did not look   5   at all.But when the king looked   6  , he found behind the waterfall a very small bush   7   in the midst 在…中)of the waterfall and a mother bird sitting on her nest(鳥窩)in perfect peace.

  The king gave the award to the artist who painted the   8   picture.Why?“Because,”explained the king,“peace does not mean   9   in a place where there is no   10  , no trouble or hard work.Peace means in the midst of all those things, you're still calm in your heart.That's the real meaning of peace.”

查看答案和解析>>

科目:初中英語 來源: 題型:

Dogs are people's friends. They will do anything their masters(主人)ask them to do and they do their duty very well.

   Curly is my black dog. He is big and strong. He is strong enough to carry me on his    56  . He likes running and playing with me. He likes to   57  .my father around in the fields, too.

   One day my father took off his coat. put it on the ground  58  a big tree and said to Curly. “  59  my coat.”

   Curly sat down on the coat. Then my father remembered he had to  60  dinner for the

Family.  61  he went home and forgot all about his coat and dog

   Late in the evening I  62  my dog and looked for him everywhere in the yard. I called, "Curly, Curly!" But Curly did not answer.

   Soon my father wanted something in his coat pocket(口袋). Suddenly he remembered   63  he had done. Quickly he went back to the big tree. What do you think he saw? Curly was   64  sitting on the coat! He was afraid someone would take it   65 .

56. A. hand      B. back        C. foot        D. leg

57. A. follow     B. put         C. go         D. run

58. A. for       B. under        C. to         D. from

59. A. Look      B. Listen       C. Watch        D. Hear

60. A. fix       B. discover      C. cook        D. tell

61. A. Because    B. So         C. Though       D. Or

62. A. hoped     B. rode        C. missed       D. saw

63. A. that     B. what        C. if         D. who

64. A. always    B. often        C. still        D. usually

65. A. away      B. in         C. down        D. for

查看答案和解析>>

科目:初中英語 來源: 題型:閱讀理解

I remember the first time I met Alfred after years. He was sitting on a bench in the park. He looked very sad and cold. He hadn’t got a coat on and it started to rain. Usually, I don’t like to stop to speak to a stranger who looked like that. His shoes were well-cleaned and his clothes were quite smart, but he did not have an umbrella with him and he was getting wet in the rain. I stopped walking and said to him in a nice voice. “ Are you OK?” he looked up, and was surprised to see me. He cried out. “ Are you …” he couldn’t remember my name. I was also surprised. He was Alfred! “ I’m Tom, Alfred, what are you doing here?” I asked. He did not explain to me, but caught my hand, and asked how my life was like. I told him that I was out of job. I suggested that we go somewhere warm and dry.
So we found a café nearby and continued our conversation. I learned that he married with two children, and his wife was Sherry. I could not believe my ears. Twenty years ago his best friend was Linda, and Sherry was his worst enemy! They often had quarrels ( 爭吵) and fights in the play.
Alfred told me that he became a businessman when he graduated from the school and owned two companies in the city. I asked him why he was sitting in the rain in the park. He said that he had just had a quarrel with Sherry, and acting in the same way as when she was young, threw him out of the door and locked him out. He was young, threw him out of the door and locked him out. He was waiting for her to be calm and let him in again.
【小題1】What did Alfred look like?
A.PleasantB.SmartC.HungryD.Well-dressed
【小題2】Alfred was ___ them.
A married B. nice C. weak D. strong
【小題3】 How was Alfred when he was Tom?
A.HappyB.SurprisedC.GladD.Angry
【小題4】The writer ________
A.liked to speak to a strangerB.met Alfred in a café
C.thought Alfred’s wife was SherryD.hadn’t met Alfred twenty years.
【小題5】What happened to Alfred?
A.He lost his wifeB.He lost his job
C.His wife didn’t let him go homeD.His friend didn’t want to see him.

查看答案和解析>>

科目:初中英語 來源: 題型:

                              
We had a math contest today. I am good at math, so I ___1____it quickly. I was the first one to _____2___ the paper. I was sitting on my seat relaxing, while the teacher shouted, "Whose paper is this?" I made no response. Some time later, I suddenly realized that I didn't sign my name on the paper. I stood up ____3___ and went to the teacher. She helped me find the __4____ paper and sign my name. I would have failed the contest if she hadn't ____5___me in time.
(    )1.A. did        B. finished     C. worked       D. readed
(    )2. A. gave out    B. put out     C. hand in      D. took out
(    )3. A. hurriedly    B. quietly    C. worriedly     D. friendly
(    )4. A. nameless    B. test       C. writing      D. blank
(    )5. A. told        B. asked      C. said        D. reminded

查看答案和解析>>

科目:初中英語 來源:2012-2013學(xué)年浙江湖州長興縣實(shí)驗(yàn)初中八年級下學(xué)期期中英語試卷(帶解析) 題型:完型填空



As a kid, everyone wants to learn how to ride a bike. Here is some advice to_1_ you be on your way.
The bike. Start with a bicycle and it’s small enough for your feet to touch the _2_. If you lose your balance, you can put your feet to the ground _3_.
Training grounds. You need a big place for the first part of your practice. Be sure to wear something to keep _4_.
Keeping your balance. It’s very important to learn how to keep your balance. You may practice this easily. _5_ your bike to the higher place. Sit on the bike seat  _6_both feet on the ground. Lift both feet a few inches to let the bike roll down. If you start to fall, just put your feet on the ground. Try practicing this several times _7_ you get your balance.
Pedaling(踩動). After you get your balance, it’s time to _8_ learning how to pedal. Start by sitting on the bike seat. With your left foot on the ground and your right foot on the pedal, then push _9_ on the pedal. Push off with your left foot. Keep on practicing until you learn it well.
Braking(剎車). Catch them lightly at first, slowly increasing the pressure to get to a full _10_. Remember that braking hard while going fast can cause you fall over.

【小題1】
A.holdB.help C.feelD.wish
【小題2】
A.treeB.floorC.groundD.bike
【小題3】
A.a(chǎn)t firstB.a(chǎn)t lastC.on time D.a(chǎn)t once
【小題4】
A.dangerous B.safeC.warm D.cool
【小題5】
A.TakeB.Bring C.Give D.Ask
【小題6】
A.under B.over C.with D.a(chǎn)fter
【小題7】
A.becauseB.thoughC.until D.a(chǎn)fter
【小題8】
A.startB.keep C.enjoyD.finish
【小題9】
A.upB.down C.in D.on
【小題10】
A.look B.stopC.beginning D.turn

查看答案和解析>>

同步練習(xí)冊答案
色吊丝一区二区| 日本精品视频在线播放| 亚洲国产97在线精品一区| 福利二区91精品bt7086| 亚洲欧美福利一区二区| 久久久久国产精品厨房| 高清免费成人av| 另类中文字幕网| 国产精品久久久亚洲一区| 中文字幕一区二区三区在线视频| 红桃成人av在线播放| 巨人精品**| 综合中文字幕| 人人九九精品视频| 国产精品日本一区二区三区在线| 黄色综合网址| 日韩伦理在线| 高清电影一区| 欧美日韩国产网站| 99精品在免费线偷拍| 快播电影网址老女人久久| 大胆人体一区二区| 精品免费av在线| yy6080久久伦理一区二区| 亚洲最新无码中文字幕久久| 蜜臀久久精品| 日韩国产网站| 欧美高清hd| 国产丝袜一区| 国产一区二区三区四区| 成人在线免费观看91| 婷婷亚洲图片| 欧美天堂亚洲电影院在线观看 | 精品日韩一区| 婷婷久久综合| 亚洲国产午夜| 麻豆视频一区二区| 国产成人av在线影院| 99re成人在线| ...xxx性欧美| 精品久久久久久中文字幕| 欧美视频精品一区| 欧美日韩国产首页| 亚洲精品国产精品国自产观看浪潮| 亚洲欧美国产精品| 久久精品电影网| 久久免费在线观看| 国产伊人精品在线| 久久精品ww人人做人人爽| 中文字幕在线亚洲三区| 免费一级特黄毛片| 中文字幕第17页| 免费看毛片的网站| 国产福利视频网站| 伊人久久久久久久久久久久 | 日韩高清一级片| 国产精品1区2区3区在线观看| 成人av中文字幕| √…a在线天堂一区| 色综合视频在线观看| 日韩视频在线永久播放| 伊人伊人伊人久久| 国产91免费看片| 国产在线一区二区三区四区| 在线看无码的免费网站| aaa毛片在线观看| 精品久久久久久无码人妻| 日本裸体美女视频| 中文字幕免费播放| 伊人网在线视频| 先锋成人av| 欧美不卡在线观看| 中文字幕一区二区三三| 国产一区二区三区久久久 | 久久无码人妻精品一区二区三区| 黄色一级视频在线观看| 中文字幕欧美人妻精品| 日韩私人影院| 亚洲精品mv| 美女少妇全过程你懂的久久| 国产视频亚洲| 国产农村妇女毛片精品久久麻豆 | 春日野结衣av| 日本黄色特级片| 51国产偷自视频区视频| fc2人成共享视频在线观看| 污污片在线免费视频| 日韩成人在线看| 国产一区美女| 91麻豆免费看| 欧美性猛交xxxxxxxx| 色噜噜久久综合伊人一本| 国产女精品视频网站免费| 先锋影音一区二区三区| 久久精品一卡二卡| 国产真人真事毛片| 黄网站app在线观看下载视频大全官网 | 亚洲中字在线| 久久精品人人爽人人爽| 欧美日韩国产经典色站一区二区三区| 最新国产成人av网站网址麻豆| 91精品久久久久久久久久久| 影音先锋成人资源网站| 国产三级国产精品| 一区二区三区免费在线视频| 快射av在线播放一区| 97一区二区国产好的精华液| 亚洲欧美成人综合| 综合精品久久久| 亚洲国产又黄又爽女人高潮的| 国产mv久久久| 97视频在线免费| 日韩毛片无码永久免费看| 国产精品久久综合青草亚洲AV| 日本在线观看www| 猫咪成人在线观看| 国产中文一区二区三区| 91国产免费观看| 国内精品视频在线| 一本久久a久久精品vr综合 | 婷婷视频在线播放| 久久久久国产精品无码免费看| 中文字幕乱码在线观看| 国产精品—色呦呦| 五月精品视频| 中文字幕乱码久久午夜不卡| 亚洲成人av中文字幕| 国产欧美一区二区三区久久| 玩弄japan白嫩少妇hd| 久久久久久久蜜桃| 国产女主播在线写真| 欧美男人操女人视频| 国产91精品免费| 欧美精品九九99久久| 国产不卡在线观看| 国产男女激情视频| 久久青青草原亚洲av无码麻豆| 日韩理伦片在线| 日韩在线观看一区| 国产欧美日韩另类一区| 一区二区三区天堂av| 欧美亚洲另类久久综合| 好吊日免费视频| 亚洲欧美色视频| 日本免费一区二区三区视频| 精品一区二区国语对白| 欧美午夜精品理论片a级按摩| 国产成人avxxxxx在线看| 欧美aⅴ在线观看| 欧美一区二区三区久久久| 9999在线视频| 美女被久久久| 欧美三级午夜理伦三级中视频| 国产精欧美一区二区三区| 国产精品无码一本二本三本色| 在线精品免费视| 9i看片成人免费高清| 久久精品亚洲| 欧美精品色综合| 99久久久久国产精品免费| 黄色激情在线观看| 一区二区三区高清在线视频| 亚洲精品国产精品粉嫩| 欧美激情在线看| 久久99热精品| 午夜精品久久久内射近拍高清| 国产在线观看第一页| 成人免费毛片嘿嘿连载视频…| 狠狠色狠狠色综合系列| 亚洲精品二三区| 日韩欧美国产二区| 超碰手机在线观看| 爱草tv视频在线观看992| 日韩和的一区二区| 日韩欧美国产综合在线一区二区三区 | 成人欧美一区二区三区黑人| 日本在线不卡一区二区| 四虎精品成人免费网站| 五月婷婷六月综合| 激情亚洲一区二区三区四区| 国产精品久久久久av免费| 国产ts在线观看| 免费在线国产| 国产模特精品视频久久久久| 在线不卡一区二区| 日韩av一区二区三区美女毛片| 欧美老熟妇一区二区三区| 欧美人与牲禽动交com | 色的视频在线免费看| 夜夜嗨一区二区| 欧美xxxxxxxx| 一区二区三视频| 波多野结衣视频网址| 日韩三级不卡| 亚洲欧美综合色| 国产精品毛片a∨一区二区三区|国| av在线天堂网| 在线观看h片| 免费看欧美女人艹b| 日韩精品亚洲元码| 无码播放一区二区三区| 国精产品一品二品国精品69xx| 欧美男男gaytwinkfreevideos| 五月激情六月综合| av色综合网| 九九视频在线免费观看| 国产黄色一区| 中文字幕一区不卡| 91欧美激情另类亚洲| 中文国语毛片高清视频| 亚洲成a人片| 国产喂奶挤奶一区二区三区| 日韩男女性生活视频| av女人的天堂| 免费看男女www网站入口在线 | 亚洲精品中文字幕| 91网站在线播放| 热99精品里视频精品| 精品无人区无码乱码毛片国产 | 丝袜美腿一区二区三区| 亚洲人成电影网站色…| 日本三区在线观看| 青青青手机在线视频观看| 久久精品三级| 久久亚洲综合国产精品99麻豆精品福利| 精品少妇无遮挡毛片| 国产精品天堂| 国产精品一区在线| 2018国产精品视频| 国产精品综合激情| 久久精品97| 夜夜嗨av一区二区三区四季av| 国产欧美日本在线| 精人妻无码一区二区三区| 亚洲日本三级| 7777精品伊人久久久大香线蕉最新版 | 亚洲第一搞黄网站| 午夜精品短视频| www.五月激情| 亚洲免费综合| 久久国产精品久久精品| 成人网站免费观看| 99精品在免费线偷拍| 亚洲一区二区在线免费看| 欧美一区二区三区四区五区六区| 国产精品久久欧美久久一区| 欧美日韩视频| 在线视频欧美日韩| 欧美熟妇精品一区二区蜜桃视频| 123区在线| 最新国产の精品合集bt伙计| 精品欧美一区二区久久久伦| 97超视频在线观看| 日韩视频二区| 欧美激情伊人电影 | 在线观看亚洲黄色| 女同性一区二区三区人了人一 | 91在线九色porny| 久久精品免费观看| 欧美孕妇与黑人孕交| 欧美黑吊大战白妞| jvid福利在线一区二区| 日韩成人av在线| 亚洲自拍偷拍精品| 亚洲一区av| 欧美熟乱第一页| 无码人妻丰满熟妇区毛片18| 好吊日视频在线观看| 亚洲国产成人午夜在线一区| 精品欧美一区二区精品久久| 亚洲成人一级片| 久久黄色级2电影| 国产精品美女主播在线观看纯欲| 午夜精品久久久久久久久久久久久蜜桃| 蜜桃精品wwwmitaows| 亚洲激情第一页| 一出一进一爽一粗一大视频| 国产日本亚洲| 日韩区在线观看| 色婷婷狠狠18禁久久| 欧美视频在线视频精品| 欧美视频完全免费看| 亚洲一区在线不卡| 亚洲精品555| 4438成人网| 911亚洲精选| 日本一区二区乱| 亚洲激情视频在线播放| 97人妻精品一区二区三区免 | 亚洲欧美国产va在线影院| 中文字幕在线1| 亚洲欧洲美洲国产香蕉| 亚洲人在线视频| 九九热视频在线免费观看| 波多野结衣的一区二区三区 | 三级在线视频| 国产精品国产成人国产三级| 日韩精品一区二区三区电影| 在线视频二区| 亚洲一区免费观看| 久久久久久久久久久福利| 欧美激情网站| 欧美蜜桃一区二区三区| 亚洲最大视频网| 爱高潮www亚洲精品| 亚洲欧洲日产国产网站| 国产精品丝袜一区二区| 亚洲深深色噜噜狠狠爱网站| 午夜精品久久久久久久男人的天堂 | 大陆极品少妇内射aaaaa| 一级毛片久久久| 日韩视频一区在线观看| 免费观看av网站| 欧美r级电影| 性欧美激情精品| 97在线播放免费观看| 高清不卡一二三区| 亚洲成人自拍| 另类视频在线| 制服丝袜在线91| 久久午夜福利电影| 自拍日韩欧美| 国产中文日韩欧美| 在线免费观看黄色片| 亚洲欧美日韩久久| 免费看污黄网站| 999在线精品| 萌白酱国产一区二区| 中文字幕福利视频| 成人app下载| 国产91视频一区| 成人做爰免费视频免费看| 日韩精品欧美国产精品忘忧草| 黄色录像免费观看| 久久午夜精品| 久久国产日韩欧美| 国内老司机av在线| 欧美大黄免费观看| 黄色片在线观看网站| 日韩制服丝袜av| 日本成人三级电影网站| 黄色成人在线网| 精品国产伦一区二区三区观看方式| 三级黄色在线观看| 奇米影视一区二区三区| 日韩av电影免费在线观看| av女在线播放| 亚洲精选中文字幕| 区一区二在线观看| 91视频国产观看| 红桃av在线播放| 久久亚洲黄色| 国产精品91久久| 黄色国产在线| 欧美日韩亚洲另类| 99热精品免费| 国产精品中文字幕日韩精品| 51xx午夜影福利| 亚洲精品无播放器在线播放| 久久艳片www.17c.com| 不卡的日韩av| 亚洲国产成人高清精品| 醉酒壮男gay强迫野外xx| 99在线|亚洲一区二区| 日本高清一区| 国产亚洲人成a在线v网站 | 久久久伊人欧美| 动漫成人在线| 色狠狠一区二区| 精品人妻伦九区久久aaa片| 国产资源精品在线观看| 日韩国产欧美亚洲| 亚洲成a人片77777在线播放| 国产精品一香蕉国产线看观看 | 成人涩涩视频| 久久久亚洲影院你懂的| 天堂av中文在线资源库| 欧美猛男超大videosgay| 日韩黄色一级大片| 国产人成一区二区三区影院| 涩多多在线观看| 亚洲少妇自拍| 四虎永久免费网站| 黄色免费大全亚洲| 成人精品视频99在线观看免费| caopen在线视频| 伊人久久免费视频| 婷婷在线免费视频| 在线观看欧美黄色| 国产乡下妇女做爰| 亚洲国产电影在线观看| 91传媒理伦片在线观看| 久久字幕精品一区| 亚洲熟妇无码一区二区三区导航| 精品一区毛片| 精品国产日本| 欧美第一在线视频| 91系列在线观看| 韩国女主播一区二区| 青青草国产精品一区二区|