电台的简单概念及选购简述

电台的简单概念及选购简述
电台的简单概念及选购简述

电台的简单概念及选购简述(电台入门参考)[转贴]

随着车坛的不断壮大,FB的不断增多,电台成为了FB活动中必要的通讯工具,越来越多的DX开始考虑置办电台,在这里简单与大家讨论一下相关常识。

车台/手台都是电台,大家平常所说的对讲机其实也是电台,在名称方面,通常会有很多误会,比如,很多人都认为“对讲机”是成对儿使用的,或者认为“电台”是个多么深奥的东西,其实很容易理解——包括各位车上装的音响的收音机部分

,随身听的收音机,实际上都是一大类东西,翻译成英文,这些都叫RADIO,只不过我们说的电台通常是兼备了接收和发射功能,可以用来发射无线电信号与其他人联络的常规通信工具。

对与无线电,俺就不多说什么了,说多了俺自己也不懂。

1,什么是电台?

对于频率/频点/频道,到是可以简单说说想想大家平常听的97.4 103.9MHz, 就是频率了,说频点可能也对,说频道有点牵强了,但经常就有说“103.9频道,97.4频道”,实在是有点误导的嫌疑。

实际上我们天天听的广播就是无线电,只不过那个是“广播电台”发射的,广播电台功率狂大,发射天线位置狂好,覆盖范围狂广,于是在它覆盖范围内的接收机(就是收音机)都可以接收到它的信号,并转换成声音播放出来。

现在设想一下你和你的朋友车上/手里各有一台收音机(radio receiver) +“微型广播电台”(radio transmitter) , 就是大家正在讨论的电台(Radio Tranciver?可能拼错了,反正这个词也是造出来的)了。同时兼备发射和接收的功能,于是可以互相通话。

2,频率/频点/频段

97.4MHz是音乐台的频点103.9MHz是交通台的频点438.500MHz就是北京业余无线电爱好者可以合法使用的发射接收频点了(400MHz频段的,再其他频段也有业余HAM的合法频点,这里先不多说)。

显然大家的调频(FM)收音机是不支持430多兆赫兹接收的(好象调频部分是86~107MHZ 之间),所以,如果想在438.500MHZ 频率上发射和接收信号,得要有专用的设备,也就是需要大家平常所说的“支持业余频段的车台/手台/基地台”等等

如果说438.500是频点的话,那么它同时是属于430MHZ频段的,我们大概把430.000-439.999叫做业余400M频段,也叫业余70CM(厘米)波段

(是波长的说法),因为这个频段主要是分配给业余无线电爱好者使用的。

初级HAM接触比较多的可能还有大家常说的“2米波段”或者叫“140兆赫兹业余频段”就是144.000-145.999MHZ之间,也是HAM可以使用的频率范围。

3,业余电台/专业电台/收音机的区别及简单概念

收音机就不多说了,用来收听其他发射台发射出来的信号,通常的收音机与调频(FM)/调幅(AM)两个部分,是两种不同的调制方式,相对应的,在电台里,也有这两种调制方式的,大家常用的是支持430MHZ 段的的调频电台,而空管则是使用的110MHZ-130MHZ 之间频率,采

用AM调制方式。

再来说“业余电台”“专业电台”之间的一些简单区别

有一层意思是说业余电台是支持业余频段的电台——支持(包含)430-440这个频段的电台,专业电台是支持某些其他特定频段的电台

另一层意思是业余电台的功能方面注重于“玩儿”,对各个相关参数的调整,包括调整发射功率/搜索有信号的频点/储存多个不同的频点/可以随时手动变更储存的频点/调整不同的静噪值/有信号强度表等。

而,专业电台则更加注重使用的稳定性,所以对于操作的复杂性要求相对较低,而对电池的耐久/发射功率的稳定等性能要求高些。

对比起来,专业台通常不能随意调整发射功率/没有搜索频点的功能/能存储少量的频点并只能显示频道号码而不能显示频点值/需要用电脑和专用软件及连线才能调整每个频道内储存的频率及相关功能/通常也没有信号强度表显示

并且,专业电台可能在设计上还会增加一些诸如调频什么的保密措施,或者支持集群什么的功能(我懂得也不多了)

你就想交通JC,武装JC什么的,他们拿个台子,知道哪个是开关音量,按着哪个说话,拧到几频道是中队,几频道是总台就完了,要是拿个花哨的业余电台给JC,保他晕菜。

4,中继台(Repeater) / 差频(OFFSET)与直发

可能有人会问“中继”是什么,

这要是说细了可能会说到波的绕射什么的,我也有点泛晕,早还给物理老师了,咱们就说在高处有那么一个或者一对天线和特殊的收发电台,

负责把一个频点上收来的信号转发到另外一个频点上,于是在它覆盖范围内的台子都可以和它联系,也就是通过它和其他人联系。

还晕?

这么说吧,由于建筑物/地形等的遮挡,在地面上的2个电台之间的信号可能无法互相传送到,但2个人和这个很高的,位置很好的中继台都可以

很好的通联,于是大家就通过中继台达到覆盖更广的范围,帮助小功率设备扩大信号的目的。

通常的中继台需要使用一对频点,一个接收来自使用者手台或车台的信号(上行信号,如北京大家使用的434.750), 当收到时,在另一个频点上广播出去(下行信号,如北京的439.750)。由于中继台必须占有比较好的地理位置,同时可能有比较大的发射功率,所以通过中继台能够联络到更多的人。

差频(OFFSET)

刚才说的439.750(使用者收听的频点,下行频点)和434.750(使用者发射的频点,上行频点)之间的差就是差频,我们可以看到,发射的频点是接收频点减去5MHZ (-5MHZ),所以叫做“下差5MHZ”。

对于某些电台,可以直接设置上行频点和下行频点然后保存到一个频道里方便使用,

有些电台的设置方法则是先设接收频率,然后设置差频数值及方向,保存到某个频道内。设置方法并不重要,只要了解了中继台/差频的概念,剩下的事情可以通过看设备的说明书解决。在这里就不多说了。

直发

通常电台是在同一个频点上发射和接收的,使用者通过PTT(PUSH TO TALK)键来切换电台的接收/发射状态,按着钮说话,松开听。

在一个频点上收和发就是所说的“直发”,比如,438.500 438.550MHZ 是北京比较常用的业余无线电直发频点。

当然,同一个频点上,同时只能有一个设备进行发射,其他设备接收,如果同时2个人都在发射,他们的信号就会互相干扰,也就听不见了。

4,车坛常用业余电台选购要点

不要迷信MOTO 6200C 和一些外国产的FRS(FAMILY RADIO SERVICE)家用小对讲机,那根本就是玩具!

为了避免发射设备对其他频率的干扰,这些产品的功率肯定低于0.5瓦,在没有遮挡的情况下可能能够达到直发距离2公里,如果在市区,1公里已经不错了。唯一的优点是,不需要任何执照及验机,既买既用。

当然,这些小手台都是固定信道固定频率的收发设备,可以理解为“低功率的/不可调整频率的专业电台(家用)”,当然,他们的频率固定在

409.???(国产)462.???/467。???MHZ(进口)范围,通常只有16个固定频点,且无法更改。如果你的其他业余电台支持这些频点,是可以和他们进行直发通联的,但显然,这些小玩具不能和HAM们进行通联。

如果要选择电台,一定要满足以下条件:

★所覆盖的频率范围必须支持(包含)430-440MHZ

★必须具备差频功能

★建议选择可以手置频的机器(就是可以直接选择频点并自由储存到频道里,而不用电脑写频的)

★建议功率25W以上(车台)/支持最大5W(手台),以保证通连的距离。

有了以上条件,就可以步入业余无线电爱好者(HAM)的行列了(当然,还必须办理相关的合法手续)

二、常用电台选型参考---给很新的新手们

(内列价格仅供参考)

参数名词解释

Frequency range: 144-146 / 430-440 MHz 频率范围

Mode: FM 工作模式

RF Power output: Hi: 2.5-6/2.2-6 W, Lo: 0.5 W, El: 50 mW 各档射频输出(功率)

V oltage: Max 13.8 VDC 工作电压

Current drain: ? mA工作电流消耗

Impedance: 50 ohms 阻抗

Dimensions (W*H*D): 54*112*33.5 mm (with PB-38) 外观规格

Weight: ? Kg 重量

关于电台的通联范围:

电台的通联范围受很多因素影响,如电台的发射功率、接收灵敏度、车体金属屏蔽、周边环境,遮挡情况,高度,天线的种类以及天线与机器的匹配状况,甚至空气温度湿度等,任何所谓的“通话距离”都只能作为参考。比如:我曾经在香山用KENWOOD F7E手台0.5瓦发射功率(相当于市面MOTO6200C WALKIE-TALKIE的最大发射功率)与天津的BG3AAX 等HAM通连,而在地下室,用5W的最大功率发射,地面不到200米以外,已经收不到了。而W ALKIE-TALKIE所谓的2-3公里“通话距离”实际上是平地无遮挡情况下的参考值,如果拿到市区、楼内等地方使用,可能通连距离不足1公里。

下文中给出的通连距离参考仅简单参照日常城市中的工作环境。具体情况,请各位在以后的电台通联、相关知识学习过程中自己总结。

★入门级手台

价格范围300-400RMB 频率范围:400-470MHZ(400M全段)无哑音功能发射功率:2W 左右一般城区发射范围参考:1-3公里

比适合入门级DX 进行FB地点周围通联,车队行进守听

KINGTON 3118 300RMB (暂无现成图片,请FB时看其他DX的台子,或谁有现成的发上来)

LINTONG 71-B 360RMB

LISHENG 71-B 400RMB 此型号是否有亚音功能不详

71B 外观可参考KENWOOD 71A,但做工较粗糙,功能键定义不一样,内部软件与KENWOOD 71 完全不同

★★FB级手台

最大发射功率5W 一般城区发射范围参考:2-5公里

KENWOOD 71A

140M/400M双段发射手台

价格:约1600RMB

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/kenwood/thg71e.htm

主要特点:

可扩频率范围:140MHZ / 400MHZ 发射,100MHZ-1000MHZ接收

是比较成熟的型号,可以说是手台的首选型号。

★★★烧包级手台

最大发射功率5W 一般城区发射范围参考:2-5公里

KENWOOD F6A

140M/220M/400M 三段发射手台

价格:约2700RMB

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/kenwood/thf6a.htm

主要特点:

可同时守听2个频点,并在其中一个发射

0.1-1300MHZ 接收,全调制模式

但据说220M发射没太大用,除此以外,和F7E没什么区别。

KENWOOD F7E

140M/400M双段发射手台

价格:约2700RMB

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/kenwood/thf7e.htm

主要特点:

可同时守听2个频点,并在其中一个发射

0.1- 1300MHZ 接收,全调制模式

Y AESU (八重洲)5R

50-54 / 144-146 / 430-440 MHz 三段发射手台

价格:不详

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/yaesu/vx5r.htm

主要特点:

带有50-54MHZ 发射,但对于不涉及HAM的DX来说意义不大,对此款台子接触不多。Y AESU (八重洲)7R

50-54 / 144-146 / 430-440 MHz 三段发射手台

50-54 / 144-148 / 222-225 / 440-450 MHz (USA版)

价格:不详

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/yaesu/vx7r.htm

主要特点:

对于不涉及HAM的DX来说意义不大,对此款台子接触不多。

★入门级车台

最大发射功率35W 一般城区发射范围参考:5-10公里

ADI 446

台湾产400M单段车台

价格:约1600RMB

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/adi/ar447.htm

主要特点:

功能比较全,频率范围只有430-470MHZ,对于车坛DX外出FB ,足够。

有一说法,ADI446的手眯线头爱坏,希望厂商已经注意到了这个问题。

KENWOOD 461

400M单段车台

价格:约2000RMB

参考资料及图片:暂无

主要特点:

一直是400M业余机的主流机型

功能比较全,频率范围400-470MHZ,

但根据消息,现在已经定不到出厂就是400-470的机器了,大部分461 是通过“开频”扩到400-470的。

目前不知此说法是否确实,如属实,则推荐ADI446作为首选入门车台

★★FB级车台

I-COM 207H

140M/400M双段车台

价格:不详

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/icom/ic207h.htm

Y AESU 90R

140M/400M双段车台

价格:3000RMB

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/yaesu/ft90r.htm

主要特点:

目前世界上体积最小的一款双段车台

★★★烧包级车台

I-COM 2720

140M/400M双段车台,双频点守听

价格:3300RMB

参考资料及图片:https://www.360docs.net/doc/6a7817410.html,/icom/ic2720h.htm

主要特点:

Y AESU 8900 https://www.360docs.net/doc/6a7817410.html,/yaesu/ft8900r.htm

Kenwood TM-V708 https://www.360docs.net/doc/6a7817410.html,/kenwood/tmv708.htm

Kenwood TM-V7E https://www.360docs.net/doc/6a7817410.html,/kenwood/tmv7e.htm

Kenwood TM-D700A https://www.360docs.net/doc/6a7817410.html,/kenwood/tmd700a.htm

通常考虑FB级甚至烧包级电台台的DX 要么对电台有一定了解,要么将钱包变瘪当作最大的乐趣,具体的就不再介绍了,请看相关资料进行了解。

其他电台的资料可以参https://www.360docs.net/doc/6a7817410.html, ,.

Ken.214.Chian

2003-2-19

常用电台选型参考为BG1OES大侠所写,觉得对新手有很大帮助,所以转贴过来,未经允许,抱歉

新概念二时态测试题(含答案)

一、一般现在时: 1. The Browns ______ a nice car and Brown's brother _______ a nice jeep. A. have / have B. has / has C. have / has D. has / have 2. If their house ______ not like ours, what _______ it look like? A. is / is B. is / does C. does / does D. does / is 3. - ______ you think he will come? - If it _______ tomorrow, he will not come. A. Do / rains B. Are / rains C. Do / will rain D. Are / will rain 4. The little child ______ not even know that the moon _______ around the earth. A. do / move B. do / moves C. does / moves D. did / moved 5. Many a student _ A. are / goes 【练习答案】 二、现在进行时: ______ fond of films, but a good student seldom _______ to the cinema B. is / goes C. are / go D. is / go 1.C 2.B 3.A 4.C 5.B is / am / are + 现在分词 1. How can you ______ If you are not ______ ? A. listening / hearing B. hear / listening C. be listening / heard D. be hearing / listening to 2. ___________________________________________ The girl even won't have her lunch before she ____________________________________ her homework. A. will finish B. is finishing C. had finished D. finishes 3. Those who have applied for the post( 职位 ) _______ in the office.( 此题超前 ) A. are being interviewed B. are interviewing C. interviewing 4. The old scientist _______ to do more for the country. A. is wishing B. has been wishing C. wishes 5. If he ______, don't wake him up. 练习答案】 1.B 2.D 3.A 4.C 5.B 三、一般过去时 1. Yesterday I _______ (think) that you were not in Beijing. 2. Alice usually ______ (sit) in the front of the classroom, but she ________ (sit) at the back this morning. 3. He ______ (tell) the news to us three days ago. 4. He ______ (begin) to teach Chinese in 1990. 5. she would not telephone me if she ______ (have) no time. 测试精编 II : 1. They ______ the trip until the rain stopped. A. continued B. didn't continue C. hadn't continued 2. The local peasants gave the soldiers clothes and food without which they ______ of hunger and cold.(without 在这里表条件,你知道吗 ?) A. would die B. will die C. would be dead D. would have died 3. It was not until then that I came to know that the earth _______ around the sun. D. to be interviewing D. has been wished A. still sleeps B. is still sleeping C. still has been sleeping D. will be sleeping still D. would continue

新概念英语一测试题答案

新概念英语一测试题答案 (1) 数词, 冠词, 介词, 动词时态变化, 比较级和最高级 一写出复数 1. radios 2. knives 3. glasses 4. shelves 5. bosses 6. dresses 7. housewives 9. leaves 10. churches 11. mouths 12. families 13. ties 14. tomatoes 15. pianos 16. babies 17. teeth 18. countries 19. keys 20 potatoes 21. matches 22. boxes 23. hours 24. heroes 二用冠词a, an, the 或some , any 填空, 如果不需要,则用/ 代替. 1. Alice is _an___ air-hostess. Her father is __an__ engineer and her mother is ___a__ housewife. They all play __/____ tennis very well. 2. He has __an__ uncle and his uncle lives in __the__ United Kindom. He first saw him in __the__ autumn of 1978. 3. It is better to tell ___the___ truth than to tell ___/____ lies. 4. Will you have ____/__ more tea There’s plenty in the pot. 5. There is __a_university near my home. Every Saturday evening,_some__ students hold ___a_ party. _Some__ are dancing, _some___ are singing. They make a lot of noise. 6. Get me ____some____ cigarettes, please. ____Any__ kind will do. 7. We need __some___ ink, is there __any___ left 三用适当介词填空. 1. Can you see the words written ____ on ____ the blackboard (in, on, by, with)

新概念第二册1-20课练习卷(附答案卷)

一、单项选择 1. the teacher at this college last year ? Yes, he did. A. Did, taught B. does, teach C. Did, teach D Do,teach 2、I went to the supermarket and bought a great many A.tomatoes B.potatos C.vegetables D.meat 3、He until it stopped raining. A.waited B. didn't wait C. didn’t leave D.left 4、For the whole period of two months, there no rain in this area. A.is B.will be C.has been D.have been 5、——Hey, how are you getting with your girlfriend? —— A .It’s none of your business! B.Dear me! C .Take it easy. D.Enjoy yourself. 6、A great number of students fond of films, but a good student seldom to the cinema A. are,goes B. is,goes C. are,go D. is,go 7、If their house not like ours, what it look like? A.is, is B.is, does C.does, does D.does, is 8. I’m _______ in that ________ film A. interesting, interested B. interested, interesting C. interested, interested D. interesting, interesting 9. ------ Hurry up! We have little time! ------ I ____________. A. will come B. come C. shall come D. am coming 10. -------_____________? -------I am Italian. A.What’s your job B. What’s your name C. What nationality are you D.Where do you from 11. I don’t have ______writing paper, I only have _____chalk s. A. any, any B. any, some C. some, some D.some,any 12. Look, the little dog ______after a big cat! A. runs B. is running C. is going to run D.is runing 13. It’s very cold. _______ your coat. A. Take off B. Put on C. Turn on D.Put off 14.The man could not bear it.He could not it. A.carry B.suffer C.stand D.lift 15.Just then,the telephone rang.It rang . A.at once B.immediately C.again D.at that moment 16.On the last day he made a big dicision.It was the day of his holiday. A.final B.end https://www.360docs.net/doc/6a7817410.html,test D.bottom 17.He calls at every house in the street.He everyone. A.shouts at B.calls C.cries out at D.visits 18.The detectives were a valuable parcel of diamonds.

新概念三L测试题及答案精选版

新概念三L测试题及答 案 Company number【1089WT-1898YT-1W8CB-9UUT-92108】

新概念三册L1-4 测试题 改试卷共5大题,满分100分 一、单词拼写(每小题2分,共20分) 1.Itisfrighteningtofindwolffurc_________(粘)tothebushes. 2.Theh__(搜寻)forthemurdererprovedtobeverydifficultforhewashidinginthemountai n. 3.Expertsc_____ (证 实)thatapumawillnotattackahumanbeingunlessitiscornered. 4.TheancientcityofLoulanmusthavebeenp_________.(繁荣的) 5.Thearchaeologistsfoundastatued_________(追溯)fromthefifteenthcenturyB.C 6.Despiteherage,theoldladywasveryg________(优雅的)indeed 7.He immediately r___________( 认出 ) as Bill Wilkins, our local grocer. 8.The big clock has been s_________( 无声无息) ever since it was damaged many years ago. 9.When he got married , Alf was too e____________( 尴尬的 ) to say anything to his wife about his job. 10.He feels that his rise in s____________(地位 ) is well worth the loss of money. 二、单项选择(每小题2分,共20分)

新概念第二册L57测试题和答案

新概念第二册L57Can I help you, madam检测题一、翻译 1.太太,夫人 2.牛仔裤 3.犹豫,迟疑 4.接待,服务 5.轻蔑地 6.惩罚 7.fur 8.热切的,热情的 9. a woman in jeans 10.a n expensive shop 11.t hough 12.t he way she was dressed 13.g lance at 14.w alk out of the shop 15.a ngrily 16.d ecide to 17.p unish the woman 18.r eturn to the shop 19.t he following morning 17.d ressed in a fur coat 18.w ith a handbag in one hand and a long umbrella in the other 19.s eek out 20.a sk for the same dress 21.b e eager to 22.s erve sb. 23.w ith great difficulty 24.e njoy oneself doing 25.m ake sb. Do 26.l et sb. Do 27.昂贵的珠宝 28.i nexpensive 29.c heap 30.a ffordable 31.h esitate to do sth. 32.a fur coat 33.p unish the thief 34.p unishment 35.g overnment 36.e nvironment 37.r ealize the importance of sth. 38.s erve the people 39.b e eager to do sth. 二、根据英文解释写出本课所学的英文单词 1.__________ costing a lot of money 2.__________ to make someone suffer because they have done something wrong or broken the law 3.__________ to know and understand something, or suddenly begin to understand it 4.__________ very keen and excited about something that is going to happen or about something you want to do 5.__________ to work or perform duties for a person, an organization, a country, etc. 三、短文填空 Dear Anne, How are you? I had great fun last Wednesday, 71 12th,2013. It was a traditional Chinese festival called Dragon Boat Festival that day. This festival is in memory of Qu Yuan, one of 72 greatest Chinese poets. He killed himself by jumping into the Miluo River on May 5th of the lunar calendar (阴历), 278 BC. People there rowed the boats to 73 him. But it was too late. They were very sad and then threw rice into the 74 to feed the fishes so that they would stay away from his body. 75 then on, every year on this day, people enjoy 76 Zongzi which is made of rice with meat, eggs and so on. In the past we ate it only 77 a year, but now we regarded it as our daily food. We can have it any time we like. Have you ever 78 the dragon boat race on TV? It is another important part of this festival. Several teams row their dragon-shaped boats as 79 as they can. The first team to reach the finish line wins. If you have a plan to visit China next year, would 80 like to spend this festival with us? Best wishes, Xiao Qiang

新概念英语2课后题答案(选择、填空).doc22

Lesson 44 B 1to see 2 working 3 ironing 4 to leave 5 to argue/ arguing 6 to come 7 seeing 8 knocking 9 waiting 10 to rain/ raining 11 w orking 12 taking Lesson 45 2.难点练习答案 1 back 2 robbed… stole 3 back 4 stole 5 robbed Lesson 46 B1 with 2 to…for 3 with 4 for 5 to 6 at 7 to 8 to 9 for 10 to…at 11 at 12 with 13 with 14 to…for 15 for 16 for 17 with 18 for 19 at 20 with 21 to 22 with 23 at 24 to 25 with…to 26 to…with27 for 28 to…to 29 for 30 to 31 for 32 to 33 to…with 34 for 35 to 36 to 37 at 38 at 39 with 40 for Lesson 47 C 1 will have finished 2 broke 3 were 4 could D 1 mustn't 2 needn't Lesson 48 A 1 which 2 denied 3 fetched 4 too 5 jobs 6 One…a…who 7 past 8 next 9 watching 10 continually 11 remarked 12 robbed D 1 made 2 do 3 make 4 do 5 Do 6 make 7 made8 does E1 out 2 up 3 up 4 up…away 5 up 6 out 7 back 8 up with 9 up with Lesson 49 Lesson 50 B‘Let's eat here,’I said to my wife. ‘I(would) prefer to have a drink first,’she answered. ‘That's a good idea,’I said. I picked up the menu.‘I don't understand a thing.’I said.‘It's all in Spanish.’

新概念3课后答案详解绝对完整版

Lesson 01 A Puma at large 逃遁的 美洲狮 Special difficulties 难点 Exercises A 1. at/for 2. to 3. to 4. in 5. on Exercises B 1. He is the man we have heard about so much. 2. The shelf you put those books on has collapsed.(vi.倒塌, 崩溃, 瓦解) did you receive a letter from 特殊疑问句中whom 不能省略(本句)。 定语从句中Which以及指代人的做宾语的Whom, 在非正式用法当中可以省略。 省略时,介词不能前置到关系代词Whom, Which前,只能用于非固定的动词短语后面。 固定的动词短语 look for:寻找(去掉for后look没有寻找的意思,所以介词for不能前置) 非固定的动词短语 look at:注视 live in:居住(去掉in后live仍有居住的意思,所以介词in可以前置) This is the old house in which he lived. = This is the old house he lived in. is the road we came by is the pencil you were playing with Multiple choice questions 多项选择 1…正确答案:D in common adv.共有(替换了similar) 2…正确答案:B A)只是一个具体的特定的事列,阅读理解题的时候要把握中心大意 B) large cat persuade v.说服, 劝说 3…答案正确:C 做理解题时要紧扣主题、紧扣中心大意 文章最后一句话总结了大意 句型结构题和词汇题是每课的关键 4…答案正确:C Make的用法: make somebody do(在主动语态中不定式的符号to应该省略) be made to do(被动语态中不定式的符号to 必须补充完整) -- They made her wait for hours. à She was made to wait for hours. 5…答案正确: D A)把say改成claim就对了(-- People claimed to have seen the puma.) D)清楚的道明了动作发生的先后关系 6…正确答案:B 原句中的 when引导的时间状语从句表示:-...就…(as soon as) 被动:On being observed, it immediately ran away. 主动:On observing her, it immediately ran away. On seeing me, he waved to me. 7…正确答案:D except可以和名词/名词性从句进行搭配(也可是when/if引导的从句形式) unless = if...not = except on the condition that… when = if -- …except when they are cornered. = …except if they are cornered. -- Whenever you come, you are welcome. = If ever you come, you are welcome. 8…正确答案:D A)must be只是对客观现实的推测,时态不一致 -- 对于过去事实推测一定要用:情态动词+ have +过去分词 9…正确答案:C on more than = nothing more than = only / within = not more than 10…正确答案:B in a corner 偷偷摸摸地, 暗中地, 秘密地 in a trap 落于陷阱中 at an angle 不正的, 倾斜的(angle n.角, 角度, 角落, 墙角, 棱角) under cover 在遮蔽处, 秘密地, 暗中 11... 正确答案:B fishes for pleasure 钓鱼消遣 travel for pleasure 外出游玩 read for pleasure 阅读消遣 12… on one’s own adv.独自地, 独立地, 主动地(= alone) for one’s own benefit 为了某人自己的利益。

新概念第二册1-20课练习卷(附答案卷)

New Concept English BookⅡ 一、单项选择 1. the teacher at this college last year ? Yes, he did. A. Did, taught B. does, teach C. Did, teach D Do,teach 2、I went to the supermarket and bought a great many A.tomatoes B.potatos C.vegetables D.meat 3、He until it stopped raining. A.waited B. didn't wait C. didn’t leave D.left 4、For the whole period of two months, there no rain in this area. A.is B.will be C.has been D.have been 5、——Hey, how are you getting with your girlfriend? —— A .It’s none of your business! B.Dear me! C .Take it easy. D.Enjoy yourself. 6、A great number of students fond of films, but a good student seldom to the cinema A. are,goes B. is,goes C. are,go D. is,go 7、If their house not like ours, what it look like? A.is, is B.is, does C.does, does D.does, is 8. I’m _______ in that ________ film A. interesting, interested B. interested, interesting C. interested, interested D. interesting, interesting 9. ------ Hurry up! We have little time! ------ I ____________. A. will come B. come C. shall come D. am coming 10. -------_____________? -------I am Italian. A.What’s your job B. What’s your name C. What nationality are you D.Where do you from 11. I don’t have ______writing paper, I only have _____chalk s. A. any, any B. any, some C. some, some D.some,any 12. Look, the little dog ______after a big cat! A. runs B. is running C. is going to run D.is runing 13. It’s very cold. _______ your coat. A. Take off B. Put on C. Turn on D.Put off 14.The man could not bear it.He could not it. A.carry B.suffer C.stand D.lift 15.Just then,the telephone rang.It rang . A.at once B.immediately C.again D.at that moment 16.On the last day he made a big dicision.It was the day of his holiday. A.final B.end https://www.360docs.net/doc/6a7817410.html,test D.bottom 17.He calls at every house in the street.He everyone. A.shouts at B.calls C.cries out at D.visits

新概念2课后习题答案

难点练习答案 1. What a wonderful garden (this is)! 2. What a surprise ( this is )! 3. What a lot of troube he is causing! 4. What wonderful actors ( they are )! 5. What a hard-working woman ( she is )! 6. What a tall building ( it is)! 7. What a terrible film ( it is )! 8. What a clever boy you are! 9. What a pretty girl ( she is )! 10. What a strange guy ( he is )! 多项选择题 1. c 2. d 3. c 4. c 5. a 6.b 7. b 8. a 9. d 10. c 11. d 12. b 第三课 P21 练习 B. 参照课文原文

C. died, left, spent, bought, went, stayed, listened, lent, kept, lost P22 难点练习答案 1.He paid some money to the shopkeeper. 2.He handed the prize to me. 3.The waiter brought the man a bottle of beer. 4.He sold me all his books. 5.The shop assistant found me some curtain material. 6.He did a big favor for me. 7.She showed her new hat to her husband. 8.She promised the finder a reward. 9.He gave some advice to his son. 10.His uncle left some money to / for him. 11.He is teaching us English. 12.I bought you this bunch of flowers. 13.Bring me that book please. 14.He offered a cigarette to me.

新概念第二册测试题2答案

Key to Pre-unit Test 2 Key structures A a 1 I enjoyed the film yesterday. 2 My mother went to market. 3 (This morning) the children asked questions continuously in class. 4 (On Sundays) we stay at home. 5 (This morning) I borrowed a book from the library. b 1 She rarely... 2 The shops always... 3 We never... 4 We sometimes... 5 Do you ever...(后面直接照抄) B a are playing...play...is kicking...is running b died...left...spent...bought...went...stayed...listened...lent...kept...lost c I have just received...He has been there...he has already visited...He has just bought...an d has gone d 1 ...did...buy... 2 ...hasnever lent... 3 Have you burnt... 4 ...fought... 5 ...have just won... e 1 was leaving/left...arrived 2 was working/worked...was sitting/sat 3 was walking/walked...met 4 was reading...heard 5dropped f 略 g 1 shall be ironing 2 will be arriving 3 We'll be seeing 4 shall be watching 5 will be correcting h 1 After... 2 After... 3 When... 4 ...him until he... 5 As soon as... i ...was built...became/had become...died...was built...were called...was begun...(was)completed...cost...has beenvisited...

新概念第二册课后选择题答案。

Lesson1. 1. (b) 2. (c) 3. (b) 4. (d) 5. (c) 6. (a) 7. (d) 8. (b) 9. (a) 10. (c) 11. (c) 12. (c) Lesson2. 1. (c) 2. (d) 3. (c) 4. (c) 5. (a) 6.(b) 7. (b) 8. (a) 9. (d) 10. (c) 11. (d) 12. (b) Lesson3. 1. (c) 2. (a) 3. (c) 4. (a) 5. (d) 6. (b) 7. (c) 8. (c) 9. (b) 10. (a) 11. (b) 12. (b) Lesson4. 1. (d) 2. (b) 3. (a) 4. (b) 5. (b) 6. (a) 7. (c) 8. (b) 9. (c) 10. (a) 11. (c) 12. (c) Lesson5. 1. (c) 2. (a) 3. (d) 4. (b) 5. (c) 6. (d) 7. (a) 8. (b) 9. (c) 10. (b) 11. (a) 12. (d) Lesson6. 1. (d) 2. (a) 3. (c) 4. (d) 5. (d) 6. (a) 7. (d) 8. (a) 9. (b) 10. (a) 11. (d) 12. (a) Lesson7. 1. (b) 2. (c) 3. (c) 4. (d) 5. (a) 6. (c) 7. (d) 8. (a) 9. (c) 10. (b) 11. (a) 12. (b) Lesson8. 1. (d) 2. (b) 3. (b) 4. (a) 5. (c) 6. (c) 7. (b) 8. (b) 9. (a) 10. (d) 11. (b) 12. (b) Lesson9. 1. (b) 2. (b) 3. (d) 4. (a) 5. (a) 6. (b) 7. (b) 8. (d) 9. (b) 10. (b) 11. (d) 12. (c) Lesson10. 1. (a) 2. (d) 3. (d) 4. (c) 5. (b) 6. (c) 7. (a) 8. (c) 9. (a) 10. (c) 11. (c) 12. (a) Lesson11. 1. (b) 2. (b) 3. (b) 4. (a) 5. (b) 6. (c) 7. (c) 8. (a) 9. (c) 10. (c) 11. (b) 12. (d) Lesson12. 1. (c) 2. (c) 3. (a) 4. (d) 5. (d) 6. (a) 7. (d) 8. (a) 9. (c) 10. (d) 11. (a) 12.(a) Lesson13. 1. (b) 2. (d) 3. (b) 4. (c) 5. (a) 6. (b) 7. (b) 8. (c) 9. (a) 10. (a) 11. (a) 12. (d) Lesson14. 1. (b) 2. (c) 3. (a) 4. (c) 5. (d) 6. (b) 7. (c) 8. (b) 9. (c) 10. (b) 11. (b) 12. (b) Lesson15. 1. (d) 2. (b) 3. (c) 4. (b) 5. (c) 6. (d) 7. (a) 8. (d) 9. (c) 10. (c) 11. (c) 12. (b) Lesson16. 1. (a) 2. (a) 3. (d) 4. (a) 5. (b) 6. (a) 7. (d) 8. (a) 9. (d) 10. (d) 11. (d) 12. (a) Lesson17. 1. (d) 2. (b) 3. (b) 4. (d) 5. (c) 6. (c) 7. (b) 8. (a) 9. (a) 10. (c) 11. (a) 12. (d) Lesson18. 1. (b) 2. (d) 3. (b) 4. (d) 5. (b) 6. (c) 7. (d) 8. (c) 9. (a) 10. (c) 11. (c) 12. (b) Lesson19. 1. (a) 2. (d) 3. (c) 4. (c) 5. (d) 6. (b) 7. (c) 8. (b) 9. (c) 10. (a) 11. (c) 12. (c) Lesson20. 1. (b) 2. (c) 3. (b) 4. (b) 5. (c) 6. (b) 7. (c) 8. (a) 9. (c) 10.(c) 11. (d) 12. (a) Lesson21. 1. (c) 2. (d) 3. (c) 4. (d) 5. (a) 6. (c) 7. (b) 8. (b) 9. (a) 10. (d) 11. (c) 12. (c)

新概念英语第二册课后练习答案第三课时

新概念英语第二册课后习题答案详解Lesson 3 练习答案Key to written exercises 1.关键句型练习答案 1.关键句型练习答案 A went (1.1);visited (1.2) ;sat(1.2) ;taught(1.2);lent;read(1.3) ;did not understand;thought (1.4);passed (1.5) ;did not send(1.5) ;made; go up (1.6) ;bought (1.7) ;spent(1.7) ;d id not write(1.8)C …Roy died last year…left me…spent a lot of money…bought one or two…never went to the cinema…stayed at home…listened to music…often lent CDs…they kept them…lost many CDs… 2.难点练习答案 1 He paid some money to the shopkeeper. 2 He handed the prize to me. 3 The waiter brought the man a bottle of beer. 4 He sold me all his books. 5 The shop assistant found me some curtain material. 6 He did a big favour for me. 7 She showed her new hat to her husband. 8 She promised the finder a reward. 9 He gave some advice to his son. 10 His uncle left some money to/ for him. 11 He is teaching us English. 12 I bought you this bunch of flowers. 13 Bring me that book please. 14 He offered a cigarette to me.

相关文档
最新文档