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

Everything that humans hear is in the form of waves (波).Just as the eye sees light wares in the form of colors, the ear and the eye Curs these different waves into signals that the brain (大腦) can make sense of.

The ears and brain have an Amazing amities to recognize(識別)particular sounds. For example, a mother often can tell when her baby is crying even if there are other crying babies in the same room. This is because the sound of her baby’s cry has special meaning to her and the brain has recorded is importance.

The ability to recognize sounds improves with experiences. As the brain receives information about sounds from day to day, it stores the information in its memory. When the brain hears new sounds, it gives meaning to them based on the information already in the memory. This is why certain words or songs can make a person happy. Often it is not the words or songs themselves that cause this feeling. The sounds are connected to happy memories for that person.

After hearing process controlled by the brain is to decide where a sound is coming from. One ear is usually closer to the source (來源) of a sound than the other ear is. Sound waves are stronger when they reach the ear that is closer. They also reach the closer ear first. The brain recognizes these differences and uses them to decide the location of the source of the sound.

1.Which of the following shows the normal hearing process of a mother hearing her baby crying?

a. The ears receive the sound waves.

b. The mother recognizes her baby’s cry.

c. The ears turn the sound waves into signals.

d. The baby’s cry ravels in the form of sound waves

e. The brain connects the signals to the information in me memory.

A.d-a-c-b-e          B.d-a-c-e-b          C.a(chǎn)-d-c-b-e          D.a(chǎn)-d-c-e-b

2. Certain words or songs can change tarpon’s moods mainly because of his         .

A.lifestyle           B.personality        C.experiences       D.hobbies

3.According to the last paragraph, It will be the most difficult for a person who has lost the hearing in one ear to tell         .

A.where the source of a sound is             B.how loud a sound is

C.when a sound starts to appear              D.what makes a sound

4.What is the best title for this passage?

A.Human Brain’s Amazing Facts

B.Human Hearing Characteristics

C.How to improve Hearing

D.How Do Humans Hear

 

【答案】

1.B

2.C

3.A

4.D

【解析】短文大意:這篇短文中作者以母親聽到嬰兒的哭聲為例,介紹了人們是如何聽到聲音的科學(xué)原理,并講述了耳朵辨別方位的科學(xué)道理.

1.根據(jù)短文一三段描述,可知母親只聽到嬰兒的哭聲,首先要滿足聲音以聲波的形式傳播,然后耳朵接收到這種聲波,然后耳朵把這些聲波轉(zhuǎn)換成信號,大腦把這些信號同記憶中的信息聯(lián)系起來,最后母親辨別出嬰兒的哭聲.故選B..

2.根據(jù)第三段This is why certain words or songs can make a person happy. Often it is not the words or songs themselves that cause this feeling. The sounds are connected to happy memories for that person.描述,可知與人們的經(jīng)驗(yàn)有關(guān).故選C.

3.根據(jù)最后一段描述,可知兩只耳朵通過距離聲源的遠(yuǎn)近來辨別聲音發(fā)出的方向,所以當(dāng)一只耳朵失去聽力之后,他無法辨別聲音發(fā)出的方向.故選A.

4.這篇短文中作者主要分析了耳朵是如何聽到聲音的科學(xué)道理.故選D.

 

練習(xí)冊系列答案
相關(guān)習(xí)題

科目:初中英語 來源:2012-2013學(xué)年四川省鹽邊縣紅格中學(xué)八年級下期期中考試英語試卷(帶解析) 題型:完型填空

I like movies best. Last week, I   1  a movie called ⅠRobot. It tells us a story about the future with robots. It is the year of 035 and people can see robots everywhere. Robots can help people do a lot of things, like looking   2 the old people or babies, washing, cooking, cleaning or taking dogs for a walk. Robot does everything people ask them to do   3 . But a policeman ,    4  Spooner ,doesn’t like robots. Because he doesn’t think that people can live well   5 robots. One day a scientist kills himself. He leaves(留下) a robot. Some time later Spooner finds    6  wrong with the robots in the world. A   7  robots have their own thoughts(思想) and want to control(控制) the people. If the robots succeed(成功), it will be very   8 for people. Susan is another scientist working on robots. Finally, Susan and Spooner decide to   9  together to fight against these robots. At last, they succeed. People control the robots again. I think the movie is very interesting. If you are  10   in it, why not go and see it?

【小題1】
A.watched B.watchC.sawD.see
【小題2】
A.a(chǎn)tB.a(chǎn)fterC.forD.up
【小題3】
A.goodB.nice C.wellD.fine
【小題4】
A.nameB.call C.callingD.called
【小題5】
A.a(chǎn)ndB.with C.withoutD.or
【小題6】
A.nothing B.a(chǎn)nythingC.somethingD.everything
【小題7】
A.littleB.lotC.fewD.lots
【小題8】
A.dangerousB.luckyC.dangerD.exciting
【小題9】
A.workedB.workingC.workD.works
【小題10】
A.interestingB.interestedC.interest D.interests

查看答案和解析>>

科目:初中英語 來源:2012屆遼寧省營口市中考模擬英語試卷(一)(帶解析) 題型:完型填空


My tears run down when I talk to my parents on the phone. What are they doing when I 41 them?
Dad works from 7a.m to 9p.m. Mum does all the 42 . She also has to work in the vineyard (葡萄園). But I can’t do 43 for them. Every day she got up earlier than Dad. When I 44 call her at 7:30 in the evening, she is still working and 45 supper. How hard it is for a daughter to stop the 46 in heart! And even harder to keep back the tears. 47 only thing I can do is to promise her that I’ll study hard in the university. I also 48 her to take care of herself and dad. I can not live 49 them.
Mum says the happiest time for dad and 50 is when my sister and I return home. We play 51 in the room, watch TV or do anything we like, with dad 52 mum cooking together in the kitchen. It is 53 the happiest time for me. I’ve never thought my holidays at home could be so 54 . I wanted to do more housework because mum really needs more rest.
Love, sometimes, doesn’t need too many 55 . We may be too shy to say the warm word out. Then give them a call and tell them you miss them.

【小題1】
A.was callingB.callC.will callD.called
【小題2】
A.exercisesB.homeworkC.problemsD.farm work
【小題3】
A.a(chǎn)nythingB.somethingC.nothingD.everything
【小題4】
A.hardlyB.seldomC.neverD.once
【小題5】
A.isn’t havingB.is havingC.doesn’t haveD.has
【小題6】
A.coldB.troubleC.coughD.pain
【小題7】
A.AnB.OneC.AD.The
【小題8】
A.orderB.a(chǎn)skC.a(chǎn)llowD.teach
【小題9】
A.withB.besideC.withoutD.except
【小題10】
A.himB.meC.itD.her
【小題11】
A.sportsB.cardsC.drumsD.fire
【小題12】
A.a(chǎn)ndB.orC.a(chǎn)sD.then
【小題13】
A.justB.evenC.a(chǎn)lsoD.still
【小題14】
A.tiredB.slowC.freeD.short
【小題15】
A.placesB.wordsC.movementsD.songs

查看答案和解析>>

科目:初中英語 來源:2012屆湖北保康中考適應(yīng)性考試英語試卷(帶解析) 題型:完型填空


There was a boy who was sent by his parents to a boarding school(寄宿學(xué)校). Before he was sent away, the boy was the     41     student in his class. He was at the top in every exam.
But the boy changed after     42    home and studying in the boarding school. His grades started to     43   . He hated being in a group. He was lonely all the time. And there were especially dark times when he felt like committing suicide(自殺). All of this was because he felt no one loved him.
His parents started to     44     the boy. But they even did not know what was wrong with him. So his father decided to go to the school and talk with him.
They sat by the lake near the school. The father started asking him some casual questions about his lessons, teachers and     45   . After some time his father said, "Do you know, son, why I'm here today?"
"To     46    my grades," the boy replied back.
"No, no," his father said. "I'm here to tell you that you're the most     47    person for me. I want to see you      48  . I don't care about grades. I care about you. I care about your happiness. You're my life."
These words caused the boy's eyes to be filled with tears. He hugged(擁抱) his father. They didn't say     49    to each other for a long time.
Now the boy had everything he wanted. He knew there was someone on the earth who cared for him deeply. And today this young man is in university at the top of his class and no one has ever seen him     50   .

【小題1】
A.laziestB.cleverestC.calmestD.worst
【小題2】
A.comingB.returningC.leavingD.going
【小題3】
A.dropB.increaseC.riseD.turn down
【小題4】
A.look forB.learn fromC.worry aboutD.shout at
【小題5】
A.friendsB.familyC.studyD.grades
【小題6】
A.findB.teachC.checkD.hear
【小題7】
A.famousB.importantC.outstandingD.interesting
【小題8】
A.happyB.seriousC.excellentD.honest
【小題9】
A.everythingB.somethingC.nothingD.a(chǎn)nything
【小題10】
A.illB.pleasantC.pleasedD.sad

查看答案和解析>>

科目:初中英語 來源:2012-2013學(xué)年浙江杭州蕭山黨灣鎮(zhèn)初級中學(xué)七年級12月月考英語卷(帶解析) 題型:閱讀理解

Everything has a name.All people,places,and things have names.For example,Jenny is the name of a student from England.England is the name of a country.Cities and towns have names,too.Schools and office buildings also have names.For example,tomato,potato and bean are names of vegetables.Apple,orange,and banana are names of fruit.Names are important.We use names every day.When we meet a new person,we usually ask,“What’s your name?”It’s important to learn a person’s name.Most people have two names.Some people have more names.Names are different all over the world.In Jenny’s class.Jenny must learn the names of the students from all over the world.This is very difficult because the names are very different.
In the United States,most people have a first name,a middle name and a last name.Parents choose the first and middle names for their babies.There are names for boys and names for girls.The last name is the family name.Usually it is the father’s family name.In a family,the mother, the father, and the children usually have the same last name.
Sometimes a person has a nickname,too.A nickname is a special(特有的)name.It’s not a person’s real name.Abraham Lincoln’s nickname was“Honest Abe”.An honest person(一個誠實(shí)的人)always tells the truth,and Abe is short for Abraham.Because he was an honest person.his nickname was Honest Abe.Pele(貝利)is a nickname,too.The football player’s real name is Edison Aeraesde Nascimento,but everyone calls him Pele.Do you have a nickname?
Names are different all over the world.They can be long or short.but they are always very important
【小題1】What is Jenny?

A.A student B.A teacher C.An American D.A nickname
【小題2】What does the underlined(劃線的) word “nickname” mean in Chinese?
A.乳名B.真名C.綽號D.別名
【小題3】What is Pele’s real name?
A.Honest Abe.
B.Abraham Lincoln.
C.Edison Aeraesde Nascimento.
D.We don’t know.
【小題4】Usually the last name is________ family name.
A.the father’sB.the mother’s
C.the grandmother’sD.The teacher’s
【小題5】Why is it difficult to learn names all over the world?
A.Some people have nicknames.
B.There are many names all over the world.
C.Some names are very long,and some are very short.
D.The names in different countries are different.

查看答案和解析>>

科目:初中英語 來源:2012-2013學(xué)年江蘇阜寧縣溝墩中學(xué)八年級下期期末考試英語卷(帶解析) 題型:閱讀理解

In order to know a foreign language thoroughly, four things are necessary. Firstly, we must be able to understand the language when we hear it spoken. Secondly, we must be able to speak it ourselves, correctly, with confidence and without hesitation. Thirdly, we must be able to read the language and fourthly, we must be able to write it. We must be able to compose(組成)sentences that are grammatically correct. We must know how to arrange sentences in paragraphs, so as to write a good letter or composition.
There is no easy way to succeed in language learning. A good memory is of great help, but it is not enough simply to memorize rules from a grammar book. It is not much use learning by heart long lists of words and their meaning. We learn words not by ourselves, but in sentences. We must learn by using the language. “Learn through use” is a good piece of advice for those who are studying a new language. Practice is very important. We must practice speaking and writing the language whenever we can.
【小題1】The word “confidence” here probably means _____.

A.useB.eyesC.needD.feeling sure of ourselves
【小題2】The writer advises us to _______.
A.speak more and write more
B.read more
C.speak more
D.use a dictionary
【小題3】The first step in learning a language is ______.
A.readingB.speakingC.writingD.listening
【小題4】Words should be learned _____.
A.from a dictionary B.from a textbook
C.in sentencesD.from a good grammar book
【小題5】“Learn through use “is to say that ______.
A.we must practise speaking and writing
B.we must learn by using the language
C.we must learn everything by language
D.we must remember grammar rules as many as possible

查看答案和解析>>

同步練習(xí)冊答案
91亚洲国产成人精品性色| 国产一区二区三区丝袜| 欧美一级视频在线播放| 成人a视频在线| 久热综合在线亚洲精品| www.亚洲男人天堂| 无码一区二区精品| 性欧美hd调教| 亚洲综合色在线| 日本一区二区在线视频| www久久久久久| 国产欧美激情| 欧美精品做受xxx性少妇| 一本色道综合久久欧美日韩精品 | 男人添女人下面免费视频| 日韩黄色影院| 久久色.com| 91精品婷婷国产综合久久蝌蚪| 欧美日韩一二三四区| 日韩欧美精品综合| 亚洲精品视频网上网址在线观看 | 国产一区二区三区视频在线播放| 69av成年福利视频| 印度午夜性春猛xxx交| 久久婷婷国产| 日韩精品一区二| 日本在线一二三区| 好吊日av在线| 亚洲另类在线视频| 亚洲亚洲精品三区日韩精品在线视频| 色婷婷激情五月| 久久aⅴ国产欧美74aaa| 国产成人精品一区二区三区| 国产无遮挡又黄又爽| 欧美一区二区麻豆红桃视频| 日韩精品在线看| av av在线| 成人黄色免费观看| 色天使色偷偷av一区二区| 丁香花在线影院观看在线播放| 番号集在线观看| 久久久久久毛片| 鲁丝一区鲁丝二区鲁丝三区| 欧美熟女一区二区| 久久99热国产| 成人免费激情视频| 亚洲天堂一二三| 亚洲一区视频| 国产成人精品久久久| 中文字幕亚洲高清| 好看的日韩av电影| 久久久久久网址| 久久久久久久久久综合| 99久精品视频在线观看视频| 在线视频中文亚洲| 97在线观看免费高| 日韩不卡一区| 久久亚洲春色中文字幕| 国产精品国产精品88| 成人综合久久| 色婷婷**av毛片一区| 免费成人美女女在线观看| 色综合中文网| 中文字幕欧美在线| 亚洲怡红院在线观看| 日韩精品第一区| 久久久国产成人精品| 日韩影院一区二区| 91精品国产视频| 欧美理论电影在线观看| 久久精品视频国产| 黄色精品网站| 日本精品免费观看| 亚洲一区二区三区高清视频| 免费人成在线不卡| 成人精品一区二区三区电影黑人| av网站免费大全| 国产精品一二三| 精品久久一区二区三区蜜桃| 欧美性猛交p30| 久久久影视传媒| 亚洲午夜精品久久| 免费在线观看av网站| 一区二区三区欧美久久| 青青青国产在线观看| 九九精品调教| 日本韩国一区二区三区| 波多野结衣网页| 欧美影院精品| 亚洲欧美色图片| 一区二区国产精品精华液| 欧美/亚洲一区| 欧美一区二区.| 国产人妻精品一区二区三| 国产一区二区精品久久| 乱色588欧美| 97电影在线观看| 亚洲一区在线观看视频| 精品久久久久久久无码| 成人国产精品久久| 日韩精品在线观看视频| 男女羞羞免费视频| 亚洲在线电影| 99免费在线观看视频| 一级视频在线观看视频在线啦啦| 国产精品丝袜在线| 免费看一级大黄情大片| 电影一区二区| 日韩精品中文字幕视频在线| 男人操女人的视频网站| 亚洲精品字幕| 97免费高清电视剧观看| 欧美在线一卡| 亚洲国产美国国产综合一区二区| 校园春色 亚洲色图| 日韩一区二区三区色| 在线视频精品一| 精品国产免费观看| 久久精品国产色蜜蜜麻豆| 欧美激情一区二区三区在线视频| 在线观看免费黄色| 色视频欧美一区二区三区| 李丽珍裸体午夜理伦片| 日韩欧美视频| 国产精品久久久久av| 超碰在线12| 樱桃国产成人精品视频| 国内国产精品天干天干| 日韩av网站在线免费观看| 欧美精品久久一区二区| 99热精品在线播放| 国产视频视频一区| aaaaaa亚洲| 91欧美日韩在线| 欧美成在线视频| 国产三级三级在线观看| 欧美国产一区视频在线观看| 欧美伦理片在线看| 加勒比中文字幕精品| 欧美激情中文字幕乱码免费| www.色视频| 国产精品乱码久久久久久| 五月婷婷深爱五月| 窝窝社区一区二区| 欧美一区二区三区免费视| 亚洲欧美日韩综合在线| 亚洲一区二区在线免费看| 欧美日韩一区二区区别是什么 | 国产激情视频一区二区在线观看 | 在线免费观看成年人视频| 欧美视频成人| 国产一区二区三区免费不卡| 五月天激情在线| 亚洲精品一区二区精华| 激情五月色婷婷| 不卡区在线中文字幕| 久久久久免费看黄a片app| 亚洲专区**| 51色欧美片视频在线观看| 最近中文字幕在线| 色综合久久88色综合天天免费| 一本加勒比北条麻妃| av成人毛片| 色女人综合av| 成人深夜福利| 欧美二区在线播放| 亚洲 欧美 自拍偷拍| 精品久久久视频| 中文字幕免费在线看线人动作大片| 亚洲欧美不卡| 亚洲最新在线| 国产色99精品9i| 午夜精品福利在线观看| 在线三级av| 在线观看亚洲精品视频| 黑鬼狂亚洲人videos| 国产高清精品久久久久| 久久免费视频3| 杨幂一区二区三区免费看视频| 国产精品久久99久久| 91精品国产综合久久久久久豆腐| 91精品国产综合久久福利 | 欧美久久成人| 欧美日韩成人一区二区三区| 日韩电影av| 欧美另类精品xxxx孕妇| 三上悠亚在线观看| 欧美午夜寂寞影院| 国产一级淫片a| 久久亚洲精精品中文字幕早川悠里| 视频在线观看免费高清| 欧美.www| 亚洲不卡1区| 国产精品一级在线观看| 欧美性受xxx| gogogo高清在线观看免费完整版| 日韩精品一区在线| 中文字幕有码视频| 亚洲美女视频在线观看| 永久免费毛片在线观看| 国产一区二区女| 密臀av一区二区三区| 亚洲色图国产| 亚洲 国产 日韩 综合一区| 欧美视频三区| 国产精品永久免费| 牛牛精品视频在线| www.99久久热国产日韩欧美.com| 午夜视频在线播放| 欧美福利电影网| 日韩国产亚洲欧美| 亚洲一区在线看| 男的操女的网站| 久久久久久久网| yy1111111| 久久福利资源站| 丁香啪啪综合成人亚洲| 亚洲精品久久| 99精品视频网站| 丝袜av一区| 国产精品夜夜夜一区二区三区尤| 欧美精选视频一区二区| 欧美一区第一页| 18+视频在线观看| 久久精品国产96久久久香蕉| 污视频网站在线观看| 精品久久国产老人久久综合| 国产乱码精品一区二三区蜜臂 | 成人免费看视频| 午夜诱惑痒痒网| 日韩电影免费在线看| 国产a级一级片| 狠狠入ady亚洲精品经典电影| 懂色av一区二区三区四区五区| 免费看日本一区二区| 精品国产乱码久久久久久久软件| 日韩福利在线观看| 成人福利视频网| 88xx成人永久免费观看| 日韩av色综合| 欧美激情网站| 日产精品久久久一区二区福利| 中文字幕伦理免费在线视频| 欧美精品在线观看| 日本在线www| 久久亚洲综合国产精品99麻豆精品福利| 四虎影视精品成人| 亚洲欧美综合区自拍另类| 午夜男人视频在线观看| 日韩av有码在线| 一二三四社区在线视频6| 亚洲国产天堂久久综合| 91久久影院| 日韩av有码在线| 尤物视频免费在线观看| 国产视频自拍一区| 日韩大胆视频| 中文字幕av一区二区| 第九色区av在线| 久久精品国产精品| 黄色动漫在线观看| 久久久久国产精品一区| 欧美人与性动交α欧美精品图片| 久久久久久噜噜噜久久久精品| av网站导航在线观看免费| 欧美激情视频一区| 黑人另类精品××××性爽| 欧美在线观看网站| 午夜欧美巨大性欧美巨大| 国产免费一区二区三区香蕉精| 免费日韩成人| 成人动漫视频在线观看免费| 66精品视频在线观看| 精品视频在线观看| 中文字幕伦av一区二区邻居| 亚洲欧美日韩在线综合| 久久国产影院| 男人添女荫道口喷水视频| 在线精品在线| 国产理论在线播放| 久久av中文字幕片| 欧美一区二区免费在线观看| 91视频免费播放| 久久精品一区二区三区四区五区| 日韩码欧中文字| 国产69精品久久久久久久久久| 色天天综合久久久久综合片| www五月婷婷| 精品一区二区三区四区| av资源网在线观看| 久久久噜噜噜久久久| 一二三四视频在线中文| 成人免费在线网址| 加勒比久久高清| 日日噜噜夜夜狠狠久久丁香五月| 欧美激情五月| 91插插插插插插插插| 国产麻豆精品久久一二三| 男人操女人动态图| 中文字幕日韩一区二区| 日韩不卡在线播放| 9191久久久久久久久久久| 最新天堂资源在线| 久久黄色av网站| av最新在线| 99porn视频在线| 精品国产美女| 美女福利视频在线| 国产精品综合二区| 婷婷综合在线视频| 亚洲电影在线播放| 性一交一乱一色一视频麻豆| 亚洲九九九在线观看| 91精品久久| 成人福利在线视频| 美女久久99| 激情综合在线观看| 国产成人免费视频| 国产精品三区在线观看| 色综合天天综合狠狠| 天天干天天舔天天射| 久久久国产91| 精品欧美一区二区三区在线观看| 国产一区国产精品| 欧美成免费一区二区视频| 天美星空大象mv在线观看视频| 成人aaaa免费全部观看| 欧美精品入口蜜桃| 欧美在线|欧美| 午夜成人影视| 欧美一级视频免费在线观看| 9l视频自拍蝌蚪9l视频成人| 大陆极品少妇内射aaaaaa| 开心九九激情九九欧美日韩精美视频电影| 欧美人妻一区二区三区| 精品欧美国产一区二区三区| 在线视频网站| 久久久在线免费观看| 成人av在线播放| 欧美另类videosbestsex日本| 奇米色一区二区| 中文字幕美女视频| 欧美午夜精品久久久久久超碰 | 国产精品无码久久久久成人app| 亚洲欧美日韩精品| 2019中文字幕在线电影免费| 国产一区二区不卡视频在线观看 | 手机在线看福利| 久久久影院官网| 精品乱码一区内射人妻无码| 亚洲男人天堂手机在线| 成人bbav| 欧美亚洲另类在线一区二区三区| 99成人在线| 国产ts在线播放| 欧美日韩黄色大片| 在线看片你懂得| 国产97在线亚洲| 红桃成人av在线播放| 天堂av2020| 亚洲卡通欧美制服中文| 午夜精品一区二区三| 欧美大学生性色视频| 超碰精品在线| 韩国日本美国免费毛片| 国产精品女主播av| 成人h动漫精品一区二区无码| 不卡av电影院| 极品束缚调教一区二区网站 | 欧美一区二区三区四区五区| 毛片在线播放a| 国产精品亚洲一区| 亚洲在线成人| 一区二区成人免费视频| 欧美tickling网站挠脚心| а√天堂8资源在线| 亚洲欧美久久234| 国内久久精品视频| 韩国av中文字幕| 一区二区三区亚洲| av在线精品| 男人天堂1024| 中文字幕日本乱码精品影院| 手机在线精品视频| 国产精品xxxxx| 久久精品青草| 强伦人妻一区二区三区| 欧美人xxxx| 99久久精品免费看国产小宝寻花 | 91色在线观看| 亚洲毛片av| 超碰手机在线观看| 日韩高清中文字幕| 欧美激情不卡| 六月丁香婷婷在线| 亚洲欧美电影院| 一个人免费观看视频www在线播放| 国产在线拍偷自揄拍精品| 黄色精品网站| 中国毛片直接看|