华师网络教育2012大学英语在线作业二

华师网络教育2012大学英语在线作业二
华师网络教育2012大学英语在线作业二

华师网络教育2012大学英语精读(3)在线作业

阅读理解题

第1题 (20) 分

We don’t have beds in the space shuttle, but we do have sleeping bags. During the day, when we are working, we leave the bags tied to the wall, out of the way. At bedtime we untie them and take them wherever we’ve chosen to sleep.

On most space shuttle flights everyone sleeps at the same time. No one has to stay awake to watch over the spaceplane; the shuttle’s computers and the engineers at Mission Control do that. If anything goes wrong, the computers ring an alarm and the engineers call us on the radio.

On the space shuttle, sleep-time doesn’t mean nighttime. During each ninety-minute orbit the sun “rises” and shines through our windows for about fifty minutes; then it “ s ets ” as our path takes us around the dark side of the earth. To keep the sun out of our eyes, we wear black sleep masks.

It is surprisingly easy to get comfortable and fall asleep in space. Every astronaut sleeps differently. Some sleep upside down, some right side up. When it’s time to sleep, I take my bag, my sleep mask, and my tape player with earphones and float up to the flight deck. Then I crawl into the bag, and float in a sitting position just above a seat, right next to a window. Before I pull the mask down over my eyes, I relax for a while, listening to music and watching the Earth go by beneath me.

1.阅读理解 (2) 分

When it’s bedtime, astronauts pull their sleeping bags ________ .

A、near the windows

B、in the flight deck

C、above the seats

D、in any place they like

2.阅读理解 (2) 分

“Watch over” in para. 2 has the closest meaning to ________ .

A、take care of

B、see

C、look at

D、pay attention to

3.阅读理解 (2) 分

How long does it take for the space shuttle to go round the Earth?

A、Twenty-four hours

B、Fifty minutes

C、Ninety minutes

D、Nineteen minutes

4.阅读理解 (2) 分

According the passage, in order to get comfortable andfall asleep in space, it is necessary to ________ .

A、wear a sleep mask

B、listen to music

C、sleep upside down

D、sleep sideways

5.阅读理解 (2) 分

The best title for this passage is ________ .

A、bedtime doesn’t mean night time

B、sleeping in space

C、orbiting the Sun

D、sleeping on the space shuttle

第2题 (20) 分

Yesterday was my friend Kyra’s birthday. He invited me his birthday party. Another friend, Guy, had offered to take me to the party by car.

Well, I was getting dressed 1 Guy rang and said he was ill, so I decided to go by train. Unluckily, while I was talking 2 the phone, the cat walked over my clean shirt, so I had to spend a few minutes finding another one and I was 3 leaving.

As I was walking to the station it started snowing and I got very cold. I just 4 a train and I had to wait at the station for half an hour. When the train finally arrived I was frozen! I was so cold and tired that during the journey

I 5 and I missed my station.

Well, I got off at the next stop and decided to walk 6 to Kyra’s. I walked for half an hour and then I realized I was 7 . Luckily I found

a 8 and telephoned for a taxi. When I finally arrived at Kyra’s house it

was 9 midnight and people was going home. What a 10 evening!

1.完形填空 (1) 分

A、then

B、when

C、and

D、as

2.完形填空 (1) 分

A、on

B、at

C、to

D、about

3.完形填空 (1) 分

A、ready

B、happy

C、late

D、quick

4.完形填空 (1) 分

A、got off

B、caught

C、got on

D、missed

5.完形填空 (1) 分

A、enjoyed talking

B、fell asleep

C、played cards

D、looked at 6.完形填空 (1) 分

A、up

B、forward

C、back

D、along 7.完形填空 (1) 分

A、tired

B、hungry

C、sad

D、lost 8.完形填空 (1) 分

A、phone

B、bus stop

C、road sign

D、taxi 9.完形填空 (1) 分

A、even

B、nearly

C、still

D、hardly

10.完形填空 (1) 分

A、lovely

B、frightening

C、terrible

D、cold

第3题 (20) 分

No man can change the weather. Nobody can control the weather. But if people read correctly the signs around, they can tell __1__ the weather will be like the following day or two.

For many centuries people have studied the weather and tries to __2__ weather forecasting. Sometimes distant objects __3__ hills and tall trees don’t seem to be very clear. This is a __4__ of much water vapor in the __5__ and therefore rain will probably come.

If some birds fly high, fine weather is coming, but if they fly near the ground, rainy or stormy weather is __6__ the way. It is probably because of the insects which they are hunting __7__ they fly very low.

If a fog appears in the morning just about sunrise, then the day will be warm. Instead, if a fog appears in the evening, the next day will bring wet __8__. If the sunset is mostly red in color, then the following day will be fine. If a rainbow appears in the morning, rainy weather will probably come.

Most of the __9__ sayings have been made by people who have used their

__10__ and brains to make weather forecasting.

1.完形填空 (1) 分

A、that

B、which

C、what

D、how

2.完形填空 (1) 分

A、pick

B、make

C、carry

D、send

3.完形填空 (1) 分

A、as well

B、and

C、as well as

D、such as 4.完形填空 (1) 分

A、sight

B、sign

C、mark

D、shape 5.完形填空 (1) 分

A、air

B、sky

C、heaven

D、earth 6.完形填空 (1) 分

A、by

B、in

C、for

D、on 7.完形填空 (1) 分

A、that

B、which

C、where

D、when 8.完形填空 (1) 分

A、day

B、weather

C、hour

D、time

9.完形填空 (1) 分

A、above

B、below

C、important

D、interesting

10.完形填空 (1) 分

A、ears

B、hands

C、eyes

D、legs

第4题 (20) 分

In many stories on TV and in science-fiction books, men travel to faraway stars. They have quick, easy journeys. But so far, men have been able to reach only the earth’s own moon.

Suppose a man wanted to reach a distant star. Even if he traveled his whole life, he would have to move faster than the speed of the light. Nothing can move that fast except light itself.

Strange things happen to an object when it moves rapidly. The object weighs more. An object moving at 86 percent of the speed of light is twice as heavy as it

is at rest. A stick appears shorter. A clock runs more slowly. A man would not age so fast as he would on the earth.

Light travels more than 186,000 miles a second, or about 11 million miles a minute. In one year, light travels six trillion miles. That great distance is called a light-year. It is used to measure distance in space.

The star closest to our sun is Alpha Centauri. It is more than four light-years away. If one traveled at the speed of light, he could make a round trip to Alpha Centauri in nine years. But, even at that speed, he could not reach Alcaid (北斗星) in the handle of the Big Dipper. A one-way journey to Alcaid would take almost 200 years.

1.阅读理解 (2) 分

In this passage the words “closest to our sun” means the star _________ .

A、the earth we live on

B、Alpha Centauri

C、the Big Dipper

D、the moon

2.阅读理解 (2) 分

A one-way journey to Alcaid would take _________ .

A、about nine years

B、less than four years

C、almost 200 years

D、less than 100 years

3.阅读理解 (2) 分

Why do we measure the distance in light-years instead of miles?

A、Units of light-years sound better.

B、Using light- years reduced the number of figures used.

C、We used to measure distance in light-years long ago.

D、We do not make mistakes when we use light-years.

4.阅读理解 (2) 分

If a stone moved at the speed of light, it _________ .

A、would weigh twice more than it is motionless

B、would weigh as much as it is on earth

C、would weigh less than it is on earth

D、would not have weight at all

5.阅读理解 (2) 分

This story is mainly about _________ .

A、the distance between the sun and the other stars

B、the problems of traveling to faraway stars

C、what happens when we travel faster than the speed of light

D、the tool we use when we go to faraway stars

第5题 (20) 分

Today a pilot is totally dependent on what the air traffic controller on the ground tells him. He can not see enough to be safe. Flightwatch is an instrument intended to help him.

On a screen in front of the pilot, there will be a map of the airspace around the pla ne. The pilot’s own flight level or height and his own plane at the centre of the screen will show up. On the map any other planes in the airspace will appear

as blobs (点状)of light with “tails” showing the direction of their flight. The flightwatch map is unusual, for the other planes are not shown at their true ranges (范围), but at their distance away in flying time. That gets over the problem of fast planes being too far away to be seen but likely to make contact in seconds and slow planes that are close enough to be seen but so slow that there’s no chance of contact for, say, ten minutes.

The pilot will be able to see on the screen whether another plane’s course conflicts with his own. The screen will show him the flight number of the other plane, so he can contact air traffic control and ask them about the other plane’s course, then he can take avoiding action if necessary. The screen will show him whether his action puts him in danger from yet another aircraft.

Technically, the system will be quite complex. Computers will be necessary on the ground and in each aircraft to enable flightwatch to collect data about the planes’ courses and to calculate the distances between planes. But such small computers are now quite cheap, simple and reliable.

1.阅读理解 (2) 分

A pilot is dependent on _______ for his safe flight.

A、flightwatch

B、the air traffic controller in the plane

C、the command of the air controller on the ground

D、the pilot himself

2.阅读理解 (2) 分

_______ can help the pilot to keep contact with the air traffic controller.

A、A computer

B、The screen

C、Flightwatch

D、The passage dosen’t mention it

3.阅读理解 (2) 分

The flightwatch is _______ to use.

A、quite simple

B、quite complex

C、expensive

D、not mentioned

4.阅读理解 (2) 分

The main components of the flightwatch are _______ .

A、a screen and certain computers

B、computers

C、a flightwatch map and small computers

D、blobs and tails

5.阅读理解 (2) 分

The computers are _______ .

A、large

B、neither large nor small

C、small

D、not mentioned

1.第1题

—I feel nervous about the exams.

—_______ .

A.Take your time

B.Take it easy

C.Don’t worry

D.Never mind

答案:B

标准答案:B

您的答案:

题目分数:1.0

此题得分:0.0

2.第2题

—What date is it today?

— ________ .

A.It’s a fine day today

B.It’s March

C.It’s Monday

D.It’s March 6

答案:D

标准答案:D

您的答案:

题目分数:1.0

此题得分:0.0

3.第3题

—Excuse me, can you tell me the way to the library?— ________ .

A.Sorry, I’m a stranger here, you see

B.I’m afraid you asked a wrong person

C.I have no idea

D.I can’t, forgive me

答案:A

标准答案:A

您的答案:

题目分数:1.0

此题得分:0.0

4.第4题

—Come on. Let’s try the Chinese food.

— ________ .

A.You are so kind to let me have a taste

B.Yes, I will try

C.Mm… it’s so delicious

D.They are all good food

答案:C

标准答案:C

您的答案:C

题目分数:1.0

此题得分:1.0

5.第5题

——________ ?

——I have a headache, a sore throat and I’m feeling rather weak.

A.What are you

B.What’s the matter with you

C.How are you today

D.What can I do for you

答案:B

标准答案:B

您的答案:B

题目分数:1.0

此题得分:1.0

6.第6题

—My mother is ill. Could I leave tomorrow?

—________ .

A.Good. You can go

B.Quite well. Please leave

C.No problem. Please do

D.Not bad, if you like

答案:C

标准答案:C

您的答案:

题目分数:1.0

此题得分:0.0

7.第7题

He gave ________ answer as I did.

A.as same

B.same

C.as the same

D.the same

答案:D

标准答案:D

您的答案:

题目分数:2.0

此题得分:0.0

8.第8题

If I ________ you, I ________ that job.

A.was, would take

B.were, would take

C.was, would have taken

D.were, would have taken

答案:B

标准答案:B

您的答案:

题目分数:2.0

此题得分:0.0

9.第9题

;;;;;;</span></span></span>I&rsquo;

d rather you ________ say anything about it forth

e time being. </o:p></font></span></font></p> A.don’t

C.didn’t

D.shouldn’t

答案:C

标准答案:C

您的答案:

题目分数:2.0

此题得分:0.0

10.第10题

We are looking forward to ________ the Great Wall again.

A.visit

B.visiting

C.having visited

D.being visited

答案:B

标准答案:B

您的答案:

题目分数:2.0

此题得分:0.0

11.第11题

;;;;; </span></span></span>I remember it as vividly as if it ________ tonight. </o:p></font></span></font></p>

;</p>

A.happens

B.happened

C.has happened

D.is happening

答案:B

标准答案:B

您的答案:

题目分数:2.0

此题得分:0.0

He will agree to do what you require ______ him.

A.of

B.from

C.to

D.for

答案:A

标准答案:A

您的答案:

题目分数:2.0

此题得分:0.0

13.第13题

I am ________ Florida on business.

A.in my way to

B.on my way to

C.at my way in

D.along my way for

答案:B

标准答案:B

您的答案:

题目分数:1.0

此题得分:0.0

14.第14题

I’m differen t from my twin sister. I love dancing, ___ she is interested in reading.

A.so

B.or

C.but

D.and

答案:C

标准答案:C

您的答案:

题目分数:1.0

此题得分:0.0

15.第15题

She has ________ all her debts.

A.paid in

B.paid out

C.paid off

D.paid out

答案:C

标准答案:C

您的答案:

题目分数:2.0

此题得分:0.0

16.第16题

When it ________ table-tennis, you can never defeat him.

A.goes

B.is

C.about

https://www.360docs.net/doc/199009338.html,es

答案:D

标准答案:D

您的答案:

题目分数:2.0

此题得分:0.0

17.第17题

She intended to make teaching her ________ .

A.profession

B.work

C.employment

D.occupation

答案:A

标准答案:A

您的答案:

题目分数:2.0

此题得分:0.0

18.第18题

;;;;;; </span></span></span>Compared this ________ that,you will see which is better.</o:p></font><

/span></font></p>

;</p>

;</p>

A.on

B.up

C.with

D.for

答案:C

标准答案:C

您的答案:

题目分数:2.0

此题得分:0.0

19.第19题

If you want to keep healthy, you’d better ________

smoking.

A.stop

B.to stop

C.stopping

D.stopped

答案:A

标准答案:A

您的答案:

题目分数:2.0

此题得分:0.0

20.第20题

She was terribly hungry. She had eaten ________ the

whole day.

英语网上作业

Part 1 Multiple Choice (每小题:1 分) Directions: Choose the best answer from the four choices marked A, B, C and D. 1.Actually, humor helps make products more ________ to consumers. A. available B. sensible C. feasible D. accessible 2.Just as the increase of fax machines, wireless phones and personal computers has caused a shortage of phone numbers, heavy use of the Internet is _____ the supply of numerical (数字的) Internet addresses. A. draining B. soaking C. absorbing D. drying https://www.360docs.net/doc/199009338.html,pared with what I saw 10 years ago, ads today are becoming increasingly _______. A. sophisticated

C. philosophical D. physical 4.According to the recent report, 10 years ago about one in seven people in this country spoke a language ________ English at home. A. rather than B. other than C. regardless of D. except for 5.Dolly's creators at Edinburgh's Roslin Institute boasted she ____ the promise of animals that could produce drugs and organs for humans. A. contained B. emphasized C. packed D. embodied 6.If, one day, it was possible to direct stem cells to become selected types of replacement tissue, it could be used to ________ a host of diseases which at present are incurable.

大学英语(4)全套(含答案)_华东理工大学在线作业

第1题、It is not that I do not like plays. The reason why I did not go to the theater last night was that I could not ___ the time. A、offer B、leave C、afford D、manage 标准答案:C 第2题、To speak English well, ___. A、much practice is needed B、one needs much practice C、much practice is needed by one D、one is needed much practice 标准答案:B 第3题、The material produced in China ___ easily. A、is washed B、washes C、washing D、are washing 标准答案:B 第4题、I am pleased to take ___ to exchange views with you. A、this opportunity B、a chance C、this time D、a period 标准答案:A 第5题、It is required ___ me that I give evidence. A、of B、from C、for D、with 标准答案:A 第6题、Canned foods are ___ with housewives because it takes so little time to cook them. A、popular B、welcome C、desirable D、usual 标准答案:A

华师网络学院作业答案-WEB程序设计名词解释

通用实体 答案:通用实体包含文档内容,即XML文本、其它文本或非文本数据。 伪类 答案:伪类是特殊的类,能自动地被支持CSS的浏览器所识别。 存储过程 答案:存储过程是由一系列SQL语句组成,常被设计用来完成一个特定的功能,便于共享及程序模块化。 Request 答案:ASP内置对象,它在一个HTTP请求过程中,获取由浏览器传送给服务器的消息。包括从HTML 表单、cookie 和客户端认证等。 外部实体 答案:外部实体是指包含在独立文件中的实体。 数组 答案:数组是若干个元素的有序集合,每个数组有一个名字作为其标识。 SQL 答案:SQL是一个被广泛采用、适用于关系数据库的数据库语言工业标准,他是一种数据库子语言,是一种控制与DBMS 交互的语言。 表单 答案:提供图形用户界面的基本元素,包括按钮、文本框、单选框、复选框等等,是HTML实现交互功能的主要接口,用户通过表单向服务器提交数据。 全局变量 答案:变量在过程外被声明,则它的作用域是整个脚本程序范围,可被所有过程引用,称之为全局变量。 局部变量 答案:变量在过程中被声明,则它的作用域仅局限于该过程,称之为局部变量。 事件 答案:事件是指计算机进行一定操作而得到的结果。 可析实体 答案:可析实体是一种由XML文本组成的实体。 统一资源定位器URL(Uniform Resource Locator) 答案:统一资源定位器URL(Uniform Resource Locator)是用来确定用户所需信息的确切位置。包括信息资源的名称及地址。 事件处理程序 答案:对事件进行处理的程序或函数称之为事件处理程序。 Application 答案:ASP内置对象,它用于存储和管理与该Web应用程序有关的信息,在一个ASP应用内让不同使用者共享信息。 域名服务系统(DNS)

最新英语在线作业1.pdf

1.Our manager will look into the matter as soon as possible. Just have a little ____. A wait B time C patience D rest 正确答案:C 词汇与结构2013 2.There will be _______ soon. I’m afraid I can’t go. A rain B rainy C raining D rains 正确答案:A 词汇与结构2013 3.I am not used to speaking ______ public. A in B at C on D to 正确答案:A 交际英语2013 4.--I wonder if I could use your computer tonight.--_____________. I’m not using it right now. A Sure, so ahead. B I don’t’ know. r. C It doesn’t matte

D Who cares? 正确答案:A 词汇与结构2013 5.I don’t know the park, but it’s ______ to be quite beautiful. A said B told C spoken D talked 正确答案:A 词汇与结构2013 6.The teacher came into the classroom, ______ a thick book in her hand. A have B to have C having D had 正确答案:C 交际英语2013 --_______________. 7.--Hey, Tom, what’s up? A Yes, definitely! B Oh, not much. C What is happening in your life? D You are lucky. 正确答案:B 词汇与结构2013 8.It is ______ that an accidental meeting makes a lifelong friendship.

大学英语(c)在线作业答案

单选题 1.《长沮桀溺耦而耕》文中,夫子怃然曰:“鸟兽不可与同群,吾非斯人之徒与而谁与?天下有道,丘不与易也。”孔子所说“斯人”是指()。 A 桀溺 B 子路 C 世人 D 自己 正确答案:C 单选题 2.《组织管理的技术——系统工程》是一篇宏观性质的科普作品,不像科学小品,可从科学现象点滴生发开去;也不能如科幻作品,展开幻想翅膀高飞。它既有严格的科学性,用准确、通俗的文字高度概括地介绍系统工程的知识;又深入浅出,(),寓繁于简,以鲜明的观点、丰富的内容、醒目的标题豁人耳目,使外行乐意领教。 A 小题大做 B 以一总万 C 大题小做 D 另辟蹊径 正确答案:C 单选题 3.“康桥”也就是我们今天所译的“剑桥”,英国剑桥大学所在地。康桥象征诗人对“爱”、“美”、“自由”的单纯信仰,对青春的留恋,对理想的执着,是人生中最美好的青春梦幻之地。康桥求学是徐志摩人生中最美丽的一段时光,其时他对诗歌发生浓厚的兴趣,走上文学的道路。重返故地,牵引起他无数关于青春、理想、还有对过去飘逸洒脱生活方式的甜蜜回忆。诗中重墨浓彩写的是()。 A 对青春的留恋 B 对理想的执着 C 大学学习生活 D 康河景观 正确答案:D 单选题 4.韩愈(768-824)字退之,河内河阳人(今河南省孟县)。韩氏自称郡望昌黎,每自称韩昌黎,故后世称他为韩昌黎。他倡导了古文运动,其文遒劲有力,条理畅达,语言精炼,各

体兼长,为古代杰出散文家,位列“唐宋()”之首。 A 名家名人 B 散文家 C 八大家 D 古文家 正确答案:C 单选题 5.《饮食男女》是李安父亲三部曲(《推手》和《喜宴》)中的最后一部。和前两部一样,李安在这部电影中展现的仍然是中国传统与现代撞击中的()家庭生活细节。李安对家庭剧有着明显的偏爱,这大概源于他自己独特的对于家庭的感受,很善于从小处见大,从看似简单的家庭情节剧中挖掘出深刻的精神内涵。在《饮食男女》这部影片里,李安没有把三个女儿简单地设置老朱的对立面,而是通过一个个生动的细节,将三个女儿的个性都表现出来了。每个女儿都有自己的问题,她们在内心都有一种逃离家庭建立新家庭的欲望,但在中国传统文化的桎梏下,人人对性的问题都讳莫如深,但这个传统家庭却最后喜剧性地毁于这种人人心中都存在的儿女私情。 A 台湾高雄 B 台湾乡村 C 台湾城市 D 台湾台北 正确答案:D 单选题 6.《前赤壁赋》中作者写景抒情由情入理生动地抒发的不重得失的豁达乐观的情怀。文中他以()阐明变与不变的哲理:客亦知夫水与月乎?逝者如斯,而未尝往也;盈虚者如彼,而卒莫消长也。盖将自其变者而观之,则天地曾不能以一瞬;自其不变者而观之,则物与我皆无尽也,而又何羡乎?且夫天地之间,物各有主。苟非吾之所有,虽一毫而莫取。惟江上之清风,与山间之明月,耳得之而为声,目遇之而成色。取之无禁,用之不竭。是造物者之无尽藏也,而吾与子之所共适。 A 主客问答 B 清风明月 C 人生感悟 D 以景拟人 正确答案:A

华师2016网络教育远程学习方法作业及答案(100分)

计算机软件一般分为系统软件和应用软件两大类,不属于系统软件的是()。 A.操作系统 B.数据库管理系统 C.客户管理系统 D.语言处理程序 您的答案:C 题目分数:5 此题得分:5.0 2.第6题 网络学生对学习全过程进行自主管理的意识是()。 A.自励意识 B.自动意识 C.自治意识 D.自觉意识 您的答案:C 题目分数:5 此题得分:5.0 3.第7题 保持微型计算机正常运行必不可少的输入输出设备是()。 A.键盘与鼠标 B.显示器与打印机 C.键盘和显示器 D.鼠标和扫描仪 您的答案:C 题目分数:5 此题得分:5.0 4.第12题 人们在网络中可以完全不受时间、地域和资格等的限制而自由地学习,这体现了网络学习的()。

B.虚拟性 C.交互性 D.自主性 您的答案:A 题目分数:5 此题得分:5.0 5.第14题 网络学生从外界获取评价并将此评价内化为良性刺激的意识是()。 A.自评意识 B.自控意识 C.自励意识 D.自动意识 您的答案:C 题目分数:5 此题得分:5.0 6.第15题 进行网络学习,最理想的学习风格是()。 A.抵抗型 B.顺从型 C.行为型 D.转化型 您的答案:D 题目分数:5 此题得分:5.0 7.第16题 断电后,会使存储的数据丢失的存储器是()。 A.RAM B.硬盘 C.ROM D.软件

您的答案:A 题目分数:5 此题得分:5.0 8.第19题 网络学生要确立的正确学习观念是()。 A.自律 B.他律 C.顺从 D.抵抗 您的答案:A 题目分数:5 此题得分:5.0 9.第3题 关于统考的说法,错误的有( ) A.从2005年开始,推行学生个人通过网络报名与缴费 B.提供网络报名缴费的网站是https://www.360docs.net/doc/199009338.html,,缴费通过中国银联网上支付平台进行。 C.统考合格教育部发放合格证书。 D.统考成绩一般于考试结束50天后,在https://www.360docs.net/doc/199009338.html,、网络学院及各学习中心查询。 您的答案:A,C,D 题目分数:5 此题得分:5.0 10.第8题 华南师范大学网络教育学院为https://www.360docs.net/doc/199009338.html,平台开发了如下哪些手机客户端.( ) A.iPhone手机客户端 B.Symbian手机客户端 C.Android手机客户端 D.WindowsPhone手机客户端 您的答案:A,C,D 题目分数:5 此题得分:5.0 11.第17题

开放式英语2在线作业答案

开放英语2在线作业答案 1、Don't let _______ in. The doctor is operating on the patient now. A anyone B someone C nobody 2、Will she _______ do the work? A be able to B able to C is able to 3、She _______ jogging every morning. A goes B does C plays 4、_______ a glass of coffee.A I'd rather haveB I haveC I prefer to 5、Where's _______ newspaper? A today B today 's C todays' 6、I don't like coloured clothes. I like white_______. A ones B one C any 7、Have you got any books on Chinese painting? I want to borrow _______. A any B every C one 8、He likes _______ football very much. A playing B to play C play 9、Money isn't _______. A anything B something C everything 10、My parents work very hard in the farm. They _______ get up early in the morning. A occasionally B sometimes C always 11、June 1st is _______ Day.A Children'sB Childrens'C Children 12、I _______ don't understand. Could you say it again? A still B yet C as well 13、We always _______ the neighbours' cat while they're away. A take care B look after C look at 14、She _______ in America for many years. She hopes to go back toChina next year. A lives B lived C has lived 15、I am getting on very well _______ the new job. A with B on C in

大学英语2第2阶段在线作业

?A) Yes,I can. ?B) Here you are. ?C) Sorry,I don’t think so. ?D) You can take it. ?A) showed ?B) has shown ?C) will show ?D) is showing 参考答案:B 解析: 无

?A) which ?B) where ?C) when ?D) that ?A) will leave ?B) leaves ?C) will have left ?D) left

—________. ?A) I want a kilo of apples ?B) You can go your own way ?C) Thanks ?D) Excuse me. I’m busy ?A) was having ?B) have ?C) have ever had ?D) had ever had ?A) of whom only 20 of these

?B) only 20 who ?C) of 20 of these who ?D) only 20 of whom ?A) Sorry,he is busy at the moment ?B) No,you can’t ?C) Sorry,you can’t ?D) I don’t know ?A) should be hurt ?B)

is hurt ?C) will be hurt ?D) is to be hurt ?A) Sorry. He’s in at the moment. ?B) Why didn’t you call earlier? ?C) Certainly. May I have your name? ?D) D. Sorry. He doesn’t want to see you. ?A) rain

华师网络学院作业答案-数据结构(100分)

1.第1题 多维数组之所以有行优先顺序和列优先顺序两种存储方式是因为( )。 A.数组的元素处在行和列两个关系中 B.数组的元素必须从左到右顺序排列 C.数组的元素之间存在次序关系 D.数组是多维结构,内存是一维结构 您的答案:A 题目分数:2 此题得分:2.0 2.第2题 3个结点可构成( )个不同形态的二叉树。 A.2 B.3 C.4 D.5 您的答案:D 题目分数:2 此题得分:2.0 3.第3题 下列排序算法中,当初始数据有序时,花费时间反而最多的是( )。 A.起泡排序 B.希尔排序 C.堆排序 D.快速排序 您的答案:D 题目分数:2 此题得分:2.0 4.第4题 要将现实生活中的数据转化为计算机所能表示的形式,其转化过程依次为( )。 A.逻辑结构、存储结构、机外表示 B.存储结构、逻辑结构、机外表示

C.机外表示、逻辑结构、存储结构 D.机外表示、存储结构、逻辑结构 您的答案:C 题目分数:2 此题得分:2.0 5.第5题 下列有关线性表的叙述中,正确的是( )。 A.元素之间是线性关系 B.线性表中至少有一个元素 C.任一元素有且仅有一个直接前趋 D.任一元素有且仅有一个直接后继 您的答案:A 题目分数:2 此题得分:2.0 6.第6题 若要在单链表中的结点*p之后插入一个结点*s,则应执行的语句是( )。 A.s-> next=p-> next; p-> next=s; B.p-> next=s; s-> next=p-> next; C.p-> next=s-> next; s-> next=p; D.s-> next=p; p-> next=s-> next; 您的答案:A 题目分数:2 此题得分:2.0 7.第7题 栈和队列都是( )。 A.限制存取位置的线性结构 B.顺序存储的线性结构 C.链式存储的线性结构 D.限制存取位置的非线性结构 您的答案:A 题目分数:2 此题得分:2.0

秋华师英语在线作业答案

?I’ll?ask?Mr.?Smith?to?ring?you?up?(??????)?he?comes?back?to?the?office. A. when B.where 答案:A 您的答案:A 题目分数: 此题得分: ? 2.第2题 You never told us why you were one hour late for the last meeting,(?? )? ’t you ’t you you you 答案:D 您的答案:D 题目分数: 此题得分: ?

Students sometimes support themselves by()of evening jobs. A.. ways 答案:C 您的答案:C 题目分数: 此题得分: ? 4.第4题 alice received an invitation from her boss,()came as a surprise. 答案:C 您的答案:C 题目分数: 此题得分: ?

The computer center,()last year, is very popular among the students in this school. opened 答案:D 您的答案:D 题目分数: 此题得分: ? 6.第6题 the americans and the british not only speak the same language but also ()a large number of social customs. 答案:A 您的答案:A 题目分数: 此题得分: ?

《大学英语三》在线作业答案题库

《大学英语(三)》在线作业题库 一、单选题(共 50 道试题,共 100 分。) 1. – Ami, I want this report typed today. – ( ). A. It'll be ready in the afternoon, sir B. I'd like you to help me C. I know nothing about the report D. Leave it to tomorrow 正确答案:A 2. He( )himself quickly to the new condition of his work. A. changed B. altered C. adjusted D. varied 正确答案:C 3. We( )the bathroom and plan( )the bedroom this year. A. painted…to paint B. is painting… painting C. paint… to paint D. have painted…to paint 正确答案:D 4. I don't think this kind of medicine has any( ). A. answer B. cause C. effect D. work 正确答案:C 5. We consider( )the instrument be adjusted each time it is used. A. that it necessary B. it necessary that C. necessary that D. necessary of it that 正确答案:B 6. – I wonder if you could help me. – ( ). A. I could B. Yes, I do C. No, not at all D. Of course 正确答案:D 7. Parliament didn't think the Prime Minister did enough in the improvement of fair employment, ( )he was asked to write to Parliament for further explanation. A. so B. therefore

华师网络学院作业答案计算机组成原理计算题

若某计算机的主频为800MHz,每个CPU周期平均包含4个主频周期,每个指令周期平均有3个CPU周期,问: (1)该机平均指令的执行速度为多少MIPS(百万条指令每秒)? (2)若主频提高到1000MHz,每个CPU周期平均包含2个主频周期,采用流水线方式,每个指令周期平均为个CPU周期,则平均指令的执行速度又是多少MIPS? 答案: 解:(1)因为机器主频为f=800MHz,所以主频周期T=1/(800×106) =(μs), 每个CPU周期平均包含4个主频周期,所以CPU周期T CPU=4 T=4×(μs)=(μs) 指令周期T 指令 =3 T CPU=3×=(μs) 则指令的执行速度V1=1/ T指令=1/ (μs) =(MIPS) (或800÷(4×3)= (MIPS) ) (2)1000÷(2×)= (MIPS) 设机器字长为8位(运算时为9位),已知二进制数X=-101101,Y=100110, 试用双符号位补码求X+Y和X-Y的值,要求写出计算机中的运算步骤,并指 出是否有溢出。 答案: [X] 补=1 [Y] 补 =000100110 [-Y] 补 =0

[X] 补 1 + [Y] 补 000100110 1 (无溢出) [X] 补 =1 + [-Y] 补 =0 1 所以 [X+Y] 补 =1 X+Y=-000111 [X-Y] 补 =1 X-Y=-1010011 一个32位的微处理器,它有16位外部数据总线,总线的时钟频率是40MHz,假定一个总线事务的最短周期是4个时钟周期,问这个处理器的最大数据传输率是多少?如果将数据总线的宽度扩展为32位,那么处理器的最大数据传输率提高到多少?这种措施与加倍外部总线时钟频率的措施相比,哪种更好? 一种单地址指令格式如下所示,其中I为间接特征,X为寻址模式,D为形式地址。I,X,D组成该指令的操作数有效地址E。设R1为变址寄存器,R2为基址寄存器,PC为程序计数器,请写出下表中各种寻址方式名称。 OP I X D 寻址方式 名称 I X有效地址E 立即寻址 0 00 E=D 相对寻址 0 01 E=(PC)+D 变址寻址 0 10 E=(R)+D 寄存寻址 0 11 E=(R)+D,D=0直接寻址 1 00 E=(D) 相对间接寻址 1 01 E=((PC)+D)变址间接式 1 10 E=((R)+D) 寄存器间接寻址 1 11 E=((R)+D),D=0 (1)立即寻址 (2)相对寻址 (3)变址寻址 (4)寄存寻址 (5)直接寻址 (6)寄存器间接寻址

华师网络学院作业答案-数据结构判断题

消除递归不一定需要使用栈。 答案:正确 在开散列表中不会出现堆积现象。 答案:正确 在链栈上进行进栈操作时,不需判断栈满。 答案:正确 算法的正确性,一般不进行形式化的证明,而是用测试来验证。 答案:正确 顺序表不需存放指针,链表要存放指针,故链表的存储空间要求总是比顺序表大。 答案:错误 如果n个顶点的无向图有n条边,则图中肯定有回路。 答案:正确 图G的生成树T是G的子图。 答案:正确 数组的基本运算有读、写、插入、删除等。 答案:错误 不管树的深度和形态如何,也不可能构造出一棵有100个结点的哈夫曼树。 答案:正确 如果根结点的左子树和右子树高度差不超过1,则该二叉树是平衡二叉树。 答案:错误 排序的目的是为了方便以后的查找。 答案:正确 以中序方式遍历一个堆,则得到一个有序序列。 答案:正确 二叉树中可能所有结点的度都小于2。 答案:正确 顺序表可以按序号随机存取。 答案:正确 在二叉排序树中,即使删除一个结点后马上再插入该结点,该二叉排序树的形态也可能不同。答案:正确 队列在使用中必须设置两个指针,分别指向真正的队头和队尾的位置。 答案:错误 数据的逻辑结构和运算集组成问题的数学模型,与计算机无关。

对称矩阵压缩存储后仍然可以随机存取。 答案:正确 有向图中顶点i的出度等于邻接矩阵中第i行中1的个数;入度等于第i列中1的个数。 答案:错误 树和森林都可转化为二叉树,故对给定的二叉树,不能区分是由树还是森林转换来的。 答案:错误 循环队列中入队和出队的节点位置可出现在数组的任一端,已不满足“一端进另一端出”的要求,故实际上已不是队列了。 答案:错误 顺序查找法不仅可用于顺序表上的查找,也可用于链表上的查找。 答案:正确 有向图中边数等于邻接矩阵中1的个数;也等于邻接表中的边表结点数。 答案:正确 直接插入排序是稳定的,而Shell排序就是调用若干趟直接插入排序,故也是稳定的。 答案:错误 基数排序不需进行关键字间的比较,故执行时间比基于比较的排序方法要快。 答案:错误 由二叉树的先根和后根序列可以唯一确定该二叉树。 答案:错误 不论数据如何组织,分别在10000个结点和10个结点的查找表中进行查找,前者的平均查找长度肯定比后者大。 答案:错误 在线索二叉树上,求结点的(遍历)前趋和后继时可利用线索得到,即不必进行遍历了。 答案:错误 单链表中取第i个元素的时间与i成正比。 答案:正确 广义表不仅是线性表的推广,也是树的推广。 答案:正确 拓扑排序可以分析某工程能否顺利进行。 答案:正确 哈夫曼树中不存在度为1的结点。 答案:正确 在数据结构中,算法的空间耗费包括代码和数据两部分。

大学英语3第3阶段在线作业

1分) 0.0 No matter ______, the little sisters managed to round the sheep up and dri ve them back home safely. A) it was snowing hard B) hard it was snowing C) how it was snowing hard D) how hard it was snowing 参考答案:D 收起解析 解析: 无 2分) 0.0 —Is it possible for you to work late tonight —_______ A) I like it. B) I’ll do that C)

I’d love to. D) I think so. 参考答案:D 收起解析 解析: 无 3分) 0.0 People at the party worried about him, because no one was aware _______ he had gone. A) of where B) of the place where C) where D) the place 参考答案:A 收起解析 解析: 无 4分) 5.0 This kind of material expands _______ the temperature increasing. A) to B) for

with D) at 参考答案:C 收起解析 解析: 无 5分) 5.0 —Unbelievable! I have failed the driving test again! —_______ This is not the end of the world. A) Good luck. B) Cheer up. C) Go ahead. D) No problem. 参考答案:B 收起解析 解析: 无 6分) 0.0 ______ the War of Independence, the United States was an English colony.

华师网络学院作业答案-数据结构填空题

在无头结点的双链表中,指针P所指结点是第一个结点的条件是____。 答案: p-> prior==NULL 某无向图有28条边,则其顶点数最少为____。 答案: 8 在顺序表中做插入操作时首先检查____。 答案: 上溢或表满 查找表的逻辑结构是____。 答案: 集合 运算定义在逻辑结构上,算法定义在____结构上;运算指出“做什么”,算法指出____。 答案: 储存;怎么做 深度为k的二叉树,叶子数至多为____,叶子数至少为____。 答案: 2k-1、1 数组A[1..8][1..10]中,每个元素占3个单元,从首地址SA开始存放,若该数组按列存放,则元素A[8][5]的地址是____ 答案: SA+117 在150个结点的有序表中二分法查找,不论成功与否,键值比较次数最多为____。 答案: 8 下面程序段的时间复杂性为____。 for(i=0;i< n;i++) for(j=0;j< 10;j++) A[i][j]=0; 答案: O(n) 带头结点的单链表L为空的判定条件是____。 答案: L-> next==NULL n(≥1)个顶点的强连通图至少____条边,最多____条边。 答案: n、n(n-1) 排序算法的稳定性是指____。 答案: 对相同关键字排序前后相对位置不变 对400个结点的完全二叉树,度为1的结点数为____。 答案: 0 算法满足的五个重要特性是:____、____、____、输入、输出;其中区别于程序的地方是____。 答案: 有穷性、确定性、可行性;有穷性。

散列表中要解决的两个主要问题是:____、____。 答案: 散列函数的构造、冲突的处理 设循环链队列的长度为n,若只设尾指针,则出队和入队的时间复杂度分别是____和____。 答案: O(1)、O(1) 头指针为F、尾指针为R、带头结点的链队列为空的条件是____。 答案: R==F 在带头结点的单链表L中,若要删除第一个结点,则需执行下列三条语句: ____;L-> next=p-> next;delete p; 答案: p=L-> next 在邻接矩阵和邻接表上对图进行BFS或DFS遍历时,时间复杂性分别为____、____。 答案: O(n2)、O(n+e) 图的DFS遍历类似树的____遍历,是其推广。 答案: 先根 树的三种主要的遍历方法是:____、____和层次遍历。 答案: 先根、后根 n个结点的二叉链表中,指针总数为____个,其中____个指针为空。 答案: 2n、n+1 对长度为100的顺序表,在等概率情况下,查找成功时的平均查找长度为____,在查找不成功时的平均查找长度为____。 答案: 50/2、100(或101) 从n个结点的二叉排序树中查找一个元素,平均时间复杂性大致为____。 n) 答案: O(log 2 对广义表L=((a,b),c,d)进行操作head(tail(L))的结果是:____。 答案: c 非空单循环链表L中结点*p是尾结点的条件是____。 答案: p-> next==L 对n个顶点和e条边的无向图,采用邻接矩阵和邻接表表示时,求任一顶点度数的时间复杂性分别为____和____。 答案: O(n)、O(e/n)

英语在线作业

第1题(2.0) 分 “How do you do?” “ ” A、How do you do? B、Thank you. C、Sorry. D、How are you. 第2题(2.0) 分 Tian An Men Square beautiful andmagnificent. A、watches B、become C、looks D、sees 第3题(2.0) 分 After ten years of hard work, the couple to pay off all the debts. A、managed B、succeeded C、missed D、could 第4题(2.0) 分 After a long walk, the old man be tired now. A、can B、must C、has to D、need 第5题(2.0) 分The speaker spoke so quickly that()of us could understand him. A、few B、little

D、a little 第6题(2.0) 分If you have any questions, please()your hands. A、put out B、put up C、put on D、put down 第7题(2.0) 分Please say it()English. A、in B、with C、for D、at 第8题(2.0) 分 Ask him his books here tomorrow. A、take B、to take C、bring D、to bring 第9题(2.0) 分 Jack doesn’t jump so as his classmates. A、high B、highly C、higher D、more highly 第10题(2.0) 分I often visited the British Museum ______ I was staying in London. A、until B、while

大学英语第一次在线作业任务

第一次在线作业 单选题 (共40道题) 展开 收起 1.( 2.5分) -- How do you do, Mr. Wang? --_________________. A、How do you do? B、I’m doing fine. C、Nice to meet you. D、I’m OK. 我的答案:A 此题得分:2.5分 2.(2.5分) -- What’s up? --______________. ?A、How do you do? ?B、Hello. ?C、Nothing much. ?D、What’s down? 我的答案:C 此题得分:2.5分 3.(2.5分) -- ______________ -- Quite well.And you? ?A、Good to see you. ?B、How are you doing? ?C、Hi! ?D、What’s up? 我的答案:B 此题得分:2.5分 4.(2.5分) He responded with great anger ________this unfair treatment of his classmates. ?A、for ?B、at

?C、to ?D、with 我的答案:C 此题得分:2.5分 5.(2.5分) You should take an umbrella with you when you go to school _______of rain. ?A、in case ?B、in the case ?C、in cases ?D、in the cases 我的答案:A 此题得分:2.5分 6.(2.5分) He works ______. ?A、lone ?B、lonely ?C、alone ?D、lonesome 我的答案:C 此题得分:2.5分 7.(2.5分) He got up at 6:00 that day but he ________up at 7:00. ?A、usually getts ?B、getts usually ?C、usually gets ?D、gets usually 我的答案:C 此题得分:2.5分 8.(2.5分) The plane is scheduled to arrive ______ because of bad weather. ?A、lately ?B、late ?C、later ?D、latest

华师网络学院作业答案-数字电路分析题

TTL电路及输入A、B、C波形如图所示,写出其输出逻辑表达式,并画输出Y的波形图。 TTL电路及输入A、B、C波形如图所示,写出输出逻辑表达式,并画出输出Y的波形图。 答案: TTL电路及输入A、B波形如图所示,写出其输出逻辑表达式,并画输出Y的波形图。 答案:

如图所示电路是边沿D触发器,要求:(1)写出触发器的次态逻辑表达式;(2)给出CP和A的波形如下,画出触发器的状态波形。设触发器初始状态为0。 答案: 译码器74LS138和与非门构成的逻辑电路如图所示。请写出最简的输出逻辑表达式。 答案:

同步十六进制计数器74LS161构成电路如下图所示。要求:画出电路的状态转换图,说明该电路的逻辑功能。 答案: 分析如图所示电路,要求:(1)写出输出Y的逻辑表达式;(2)由逻辑表达式列写真值表;(3)说明电路功能。 答案:

图为用译码器74LS138和与非门构成的逻辑电路。请写出其逻辑表达式,并将其化简为最简的与或式。 答案: 二个JK触发器构成的时序电路如下图所示。要求:(1).写出时钟方程和状态方程;(2).画对应的波形图;(3)说明电路功能。设触发器初始状态均为0。

答案: 根据如图所示ROM,写出Y1、Y2的逻辑表达式,并将Y1、Y2化简为最简式。 答案: 根据如图所示ROM, (1)ROM的存储容量是:; (2)写出Y1、Y2的逻辑表达式,并将Y1、Y2化简为最简逻辑表达式。

答案: 解: (1)ROM的存储容量是: 4×2 ; (2)写输出逻辑表达式并化简函数: 三个D触发器构成时序电路如下图所示。要求:写出状态方程,状态转换图,说明该时序电路的逻辑功能。设触发器初始状态Q1 Q2 Q3 =110 答案: 如图所示电路是边沿T触发器,要求:(1)写出触发器的次态逻辑表达式;(2)给出CP的波形如下,画出触发器的状态波形。设触发器初始状态为0。 答案:

英语在线作业第三次

您的本次作业分数为:100分词汇结构 1.【Unit Three (2)】_________ was 1998 __________ I graduated from the university. A It; that B It; when C That; that D That; when 正确答案:A 词汇结构 2.【Unit Three (2)】Can you lend me the book _____________ the other day? A about which you talked B about that you talked C which you talked D that you talked 正确答案:A 词汇结构 3.【Unit Three (2)】I have two cats and I like ___________. A all of them B every one of them C them both D them each 正确答案:C 词汇结构 4.【Unit Three (2)】There are no tickets _________ for Friday's performance. A suitable B valuable C available D comfortable 正确答案:C

5.【Unit Three (2)】He is always very careless about his ____________ appearance. A blind B confident C free D personal 正确答案:D 词汇结构 6.【Unit Three (2)】____________ is standing at the corner of the street. A A police B The police C Policemen D A policeman 正确答案:D 词汇结构 7.【Unit Three (2)】He ____________ his arm to protect his face from the blow. A put B rose C set D raised 正确答案:D 词汇结构 8.【Unit Three (2)】The news reporters hurried to the airport, only __________ the film stars had left. A told B telling C to tell D to be told

相关文档
最新文档