上网作业英语

上网作业英语篇一

初中英语网络学习作业

上网作业英语篇二

英语II(1)网络作业答案 Unit1-6

Unit1-6

Part I

1. Go that way a take a seat. B

A. No, I‘m not tired.

B. Thanks, but I would rather stand.

C. Yes, that‘s a good way.

D. It doesn‘t matter.

2. Would you like to see the menu? A

A.No, thanks. I already know what to order.

B.Your menu is very clear.

C. I hear the food here is tasty.

D.The setting is very comfortable.

3. Do you know who telephoned me? A

A. I heard it was Sally

B. Yes, I remember it now.

C. No, I didn‘t phone you.

D. Yes, I know you well.

4. Do you like watching football matches? D

A. Thank you for inviting me.

B. I don‘t like watching it on TV, either.

C. I hear the football match will be put off.

D. Football? No. It‘s a waste of time.

5. What if my computer doesn‘t work? B

A. I‘m not good at computer.

B. Ask Anne for help.

C. I‘ve called the repair shop.

D. There must be something wrong.

6. Excuse me, how can I get to the nearest supermarket? D

A. It‘s not very far from here.

B. The supermarket is very large.

C. The goods there are very expensive.

D. Sorry, sir. I‘m a stranger here myself.

7. How‘s the mover? Interesting? C

A. It was shown late until midnight.

B. It was starred by a few famous people.

C. Far from. I should have stayed home watching TV.

D. I was seated far away in the corner.

8. Joe will come to the party at Jane and Ian‘s, won‘t he? C

A. Oh, yeah, I forgot.

B. It‘s at 8 o‘clock.

C. Yeah, he‘s bringing his cousin, Sandy.

D. Yeah, it‘s a nice party.

9. I‘ve ordered pizza and salad. What else do you want? C

A. You are kind to invite me.

B. Yes, please.

C. A beer is fine for me. I‘m not hungry yet.

D. I find pizza is tasty.

10. Jack, are you leaving now? It‘s 7:20. D

A.

B.

C.

D. Yes, it‘s still early. No, thirty minutes is enough. Yes, the bag is not ready. No, I‘ll set off in 30 minutes.

11. — Nice weather, isn‘t it? C

A. I‘m not sure

B. You know it well

C. Yes, it is

D. Yes, it isn‘t

12. Is the toilet on the ground floor or 2nd floor? C

A. No, there isn‘t.

B. Yes, it is.

C. On the ground floor.

D. It is empty.

13. I have an appointment with Dr. Johnson. C

A. The appointment is put off.

B. You look sick and weak.

C. Please wait for a minute. He is busy now.

D. Tell me your ID number.

14. Do you think the exam will be put off? C

A. Not good news

B. The exam is difficult

C. Not likely

D. It was put off yesterday

15. Hello, Sally. How‘s everything? D

— A. Good for you

B. Oh, I agree

C. That‘s right

D. Just so-so

16. I‘m trying to call Marie, but there‘s no answer. A

A. Really? Maybe she‘s out.

B. Here is a message for her.

C. I‘m really sorry about it.

D. I didn‘t realize that.

17. Ed said that his boy fell off a tree. A

A. Oh dear! I hope he wasn‘t hurt.

B. Oh, no. A lucky boy.

C. He might have broken his arm.

D. Nothing serious.

18. Oh, the box is too heavy. B

A. What‘s in it?

B. Can I help you to carry it.

C. Whose is it?

D. May I have a try.

19. Is there a drugstore near here? D

A. It‘s very small.

B. It‘s very crowded.

C. It‘s a cheap one.

D. Yes, there is a big one.

20. Can I help you to get it down? C

A. No problem.

B. Yes. Let‘s get it.

C. Thanks. It‘s so nice of you.

D. It‘s no trouble at all.

21. Which language do you speak at home? D

A. I speak English very well

B. I can speak English and French

C. English is my mother tongue

D. English, most of the time

22. What do you find difficult in learning English? A

A. Listening and speaking.

B. Don‘t be afraid of difficulties.

C. Learning English is useful.

D. Don‘t be disappointed.

23. Why are you so late? B

A. It‘s a shame.

B. I came across an old friend.

C. Never mind.

D. That‘s all right.

24. Do you know if the Andersons are still living there? B

A. Yes, they do.

B. Yes, they are.

C. No, there aren‘t.

D. No, they don‘t.

25. What‘s the problem, Harry D

A. No problem

B. No trouble at all

C. Thank you for asking me about it

D. I can‘t remember where I left my glasses

26. There is an hour to go. Could we sit somewhere to have a drink?

A. Have a try.

B. Sure.

C. Don‘t go, please.

D. No, thanks.

27. Who has done your hair, Susan. B

A. My hair has been done.

B. That hair stylist.

C. My hairstyle is cool.

D. I have it cut.

28. Ami, I want this report typed today. A

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.

B

29. I‘m sorry. Bob‘s not in his office. A

A. Can you take a message for me.

B. Are you sure for that.

C. Would you like to leave a message.

D. Can you phone me.

30. David, you‘ve been losing your temper over nothing lately. C

A. I haven‘t been getting much sleep either.

B. You‘d better not push yourself too hard, or you‘ll get sick.

C. I‘m sorry. I shouldn‘t have blown up like that.

D. You‘d better do exercises regularly.

31. Look at the rainbow! What a view! B

A. Yes. What beautiful it is.

B. Yes. How beautiful it is.

C. Yes. What a beautiful it is.

D. Yes, How a beautiful it is.

32. Where are you from? B

A. African

B. Britain.

C. Australian.

D. American

33. In my opinion, you‘d better take a couple of days off.

A. I‘ll take your advice B. Let me see

C. Never mind D. I‘m afraid so

34. Can I take your order now? D

A. Thank you for you offer.

B. Sorry, it‘s beyond my order.

C. By no means.

D. Just a moment. Tow friends are coming.

35. Well, Mary, how are you? C

A. I‘m good.

B. I‘m pleased.

C. I‘m fine.

D. I‘m nice.

36. Must I do the washing-up tonight? B

A. No, you mustn‘t if you don‘t want.

B. Leave it if you‘re exhausted.

C. Washing-up is really exhausting.

D. Washing-up really takes up time.

37. What about going for a walk? A

A. Why not? A good idea

B. That‘s all right

C. So, do I

D. Walking is good to you

38. I‘m sorry to be late. Thank you for waiting. B

A. Tell me the reason why you‘re late.

B. That‘s OK.

C. It really took up my much time.

D. It‘s a pleasure. I come here 10 minutes ago.

A

39. Will you have some dessert, Judy? A

A. No, thank you. I‘m on a diet.

B. Yes, I‘ve had enough.

C. You are so good at making it.

D. Oh, I don‘t mind.

40. Must we hand in our homework now? C

A. Yes, you will

B. Yes, you mustn‘t

C. No, you needn‘t

D. No, you mustn‘t

Part II

1. In the fifties last century many new cities ________ in the desert. C

A. bring up B. make up C. grew up D. build up

2. She has brought _____ two children by herself. B

A. – (不填) B. up C. on D. away

3. We _____ every day when we were children. A

A. used to swim B. used to swimming

C use to swim D use to swimming

4. John ____ to be a teacher before the war, but now he works in a hospital. C

A. is used B. was used C used D. use

5. I prefer the TV _____ the radio. A

A. to B. on C. at D. with

6. I prefer tea _____ coffee. A

A. to B. from C. by D. with

7. I prefer classic music __________ pop music. D

A. than B. on C. with D. to

8. I‘m leaving for New York ___ three days‘ time. B

A. for B. in C at D. on

9. She paid the builder _____ the gate. A

A. to repair B. repair

C. repairing D. repaired

10. Mother was busy. Although she was not watching the basketball on TV, she __ it on the radio.

A. was listening to B. was hearing C. was listening D. was seeing

11. I‘d rather stay at home than _____ a walk. C

A. taking B. to take

C. take D to be taking

12. When was the building _____? C

A. complete B. completing

C .completed D.completes

13. The road ____ built last year. D

A

上网作业英语篇三

网络作业

阅读理解

1、 A farmer had once made a purchase of a fine fat sheep, hoping to offer it up to the Buddha. While he was leading it home, four thieves saw him and made up their minds to steal the sheep. They knew him to be an honest person and one who thought of no more harm in others than he had in himself. They dared not take the sheep away from him by force, for they were too near the city. Therefore, they thought hard and got an idea: they first parted company and then came to the man as if they had come from several distinct parts.

The first thief came up to the farm and said, "My good old man, why are you leading this dog?"

At this moment the second thief, coming from another direction, cried to him, "Poor old man, where have you stolen this dog?"And immediately after these words, the third thief came up and asked the farmer,"Where are you going with this handsome greyhound?"

The poor farmer began to doubt whether the sheep was a sheep or not. But the fourth robber put him quite beside himself by coming near him and asking what the dog cost him.

The farmer began to think and got the conclusion that the four men, who came from different directions, could not all be wrong. He believed that the sheep he was leading was a dog. On realizing this, the farmer went back quickly to the market to demand his money from the person who sold him the dog, leaving the dog with the four thieves.

B(1)、The farmer bought a sheep in the city.B

A：T

B：F

A(2)、The four thieves decided to play a trick to get the sleep because the farmer was honest and could be easily cheated by their tricks.A

A：T

B：F

A (3)、The farmer began to have a doubt when the third thief called his sheep a dog.

A：T

B：F

A(4)、The four thieves knew about the farmer.

A：T

B：F

A (5)、The farmer was cheated by the four thieves.

A：T

B：F

2、It has been reported that in colleges across the United States, the daytime serial drama known as the soap opera has suddenly become "in". Between the hours of 11 a.m. and 4:30 pm, college television lounges are filled with soap opera fans who can't wait to see the next episode in

the lives of their favorite characters.

Actually, soaps are more than a college favorite; they're a youth favorite. When school is out, high-school students are in front of their TV sets. One young working woman admitted that she turned down a higher paying job rather than give up watching her favorite serials. During the 1960's, it was uncommon for young people to watch soap operas. The mood of the sixties was very different from now. It was a time of seriousness, and talk was about social issues of great importance.

Now, seriousness has been replaced by fun. Young people want to be happy. It may seem strange that they should turn to soap opera, which is known for showing trouble in people's lives. But soap opera is enjoyment. Young people can identify with the soap opera character, who, like the college-age viewer, is looking for happy love, and probably not finding it. And soap opera gives young people a chance to feel close to people without having to bear any responsibility for their problems.

C(1)、What is soap opera?

A：Plays based on science fiction stories.

B：Plays based on non-fiction stories.

C：The daytime serial dramas on TV.

D：Popular documentary films on TV.{上网作业英语}.

C (2)、What can be the best title of the passage?

A：College student viewers.

B：Favorite TV serials.

C：Soap opera fans.

D：College-age viewers.

D (3)、Which is NOT the reason why the soap opera has suddenly become "in" among American young people ?

A：Because the viewers want to be happy and to enjoy themselves.

B：Because the soap opera makes young people feel close to their people.

C：Because the viewers can find themselves in the soap opera characters.

D：Because the young people have to bear the responsibilities for their troubles.

C (4)、What can we learn from the passage? _________

A：College students like soap operas more than any other social groups.

B：Young people of sixties liked soap operas more than people today.

C：young viewers have turned themselves from the seriousness of sixties to enjoyment now. D：The young as a whole are trying to look for happy love but in vain.

B (5)、What message does the author want to convey to us? _________

A：The people's favorites to drama works have been changed for a long time.

B：The people's favorites to drama works change along with the times.

C：The people's favorites to drama works is changed by the soap opera. D：The people's favorites have changed the drama works.

BAAAA CCDCB

上网作业英语篇四

计算机网络课后作业以及答案(中英文对照)

Chapter1

1-11.What are two reasons for using layered protocols?

(请说出使用分层协议的两个理由)

答：通过协议分层可以把设计问题划分成较小的易于处理的片段。分层意味着某一层的协议的改变不会影响高层或低层的协议。

1-13. What is the principal difference between connectionless communication and connection-oriented communication?

(在无连接通信和面向连接的通信两者之间，最主要的区别是什么？) 答：主要的区别有两条。

其一：面向连接通信分为三个阶段，第一是建立连接，在此阶段，发出一个建立连接的请求。只有在连接成功建立之后，才能开始数据传输，这是第二阶段。接着，当数据传输完毕，必须释放连接。而无连接通信没有这么多阶段，它直接进行数据传输。

其二：面向连接的通信具有数据的保序性， 而无连接的通信不能保证接收数据的顺序与发送数据的顺序一致。

1-20. A system has an n-layer protocol hierarchy. Applications generate messages of length M bytes. At each of the layers, an h-byte header is added. What fraction of the network bandwidth is filled with headers? (一个系统有n层协议的层次结构。应用程序产生的消息的长度为M字节。在每一层上需要加上一个h字节的头。请问，这些头需要占用多少比例的网络带宽)

答：hn/(hn+m)*100%

1-28. An image is 1024 x 768 pixels with 3 bytes/pixel. Assume the image is uncompressed. How long does it take to transmit it over a 56-kbps modem channel? Over a 1-Mbps cable modem? Over a 10-Mbps Ethernet? Over 100-Mbps Ethernet?

(一幅图像的分辨率为1024 x 768像素，每个像素用3字节来表示。假设该图像没有被压缩。请问，通过56kbps的调制解调器信道来传输这幅图像需要多长时间？通过1Mbps的电缆调制解调器呢？通过10Mbps的以太网呢？通过100Mbps的以太网呢?)

答：The image is 1024*768*3 bytes or 2359296 bytes.This is 18874368 bit. At 56,000 bits/sec, it takes about 337.042 sec. At 1,000,000 bits/sec, it takes about 18.874 sec. At 10,000,000 bits/sec, it takes about 1.887 sec. At 100,000,000 bits/sec, it takes about 0.189 sec.

Chapter2

2-2. A noiseless 4-kHz channel is sampled every 1 msec. What is the maximum data rate?

(一条无噪声4kHz信道按照每1ms一次进行采样，请问最大数据传输率是多少？)

答：无噪声信道最大数据传输率公式：最大数据传输率=2Hlog2V b/s。因此最大数据传输率决定于每次采样所产生的比特数，如果每次采样产生16bits，那么数据传输率可达128kbps；如果每次采样产生1024bits，那么可达8.2Mbps。注意这是对无噪声信道而言的，实际信道总是有噪声的，其最大数据传输率由香农定律给出。

2-4. If a binary signal is sent over a 3-kHz channel whose signal-to-noise ratio is 20 dB, what is the maximum achievable data rate?

(如果在一条3kHz的信道上发送一个二进制信号，该信道的信噪比为20dB，则最大可达到的数据传输率为多少？)

答：信噪比为20 dB 即 S/N =100由于 log2101≈6.658，由香农定理，该信道

的信道容量为3log2(1+100)=19.98kbps。

又根据乃奎斯特定理，发送二进制信号的3kHz 信道的最大数据传输速率为 2*3*log22=6kbps。

所以可以取得的最大数据传输速率为6kbps。

2-5. What signal-to-noise ratio is needed to put a T1 carrier on a 50-kHz line?

(在50kHz的线路上使用1T线路需要多大的信噪比？)

答：为发送T1 信号，我们需要

所以，在50kHz 线路上使用T1 载波需要93dB 的信噪比。

2-34. A signal is transmitted digitally over a 4-kHz noiseless channel with one sample every 125 µsec. How many bits per second are actually sent for each of these encoding methods?

(a) CCITT 2.048 Mbps standard.

(b) DPCM with a 4-bit relative signal value.

(c) Delta modulation.

（一个信号在4kHz的无噪声信道上以数字方式进行传输，没125us采样一次。请问，按照以下的编码方法，每秒钟实际发送多少位？

（a）CCITT 2.048Mbps标准。

（b）有4位相对信号值的DPCM。

（c）增量调制。

）

答：a．CCITT 2.048Mbps 标准用32 个8 位数据样本组成一个125的基本帧，30 个信道用于传信息，2 个信道用于传控制信号。在每一个4kHz

信道上发送

的数据率就是

8*8000=64kbps。

b．差分脉码调制（DPCM）是一种压缩传输信息量的方法，它发送的不是每一次抽样的二进制编码值，而是两次抽样的差值的二进制编码。现在相对差值是4 位，所以对应每个4kHz 信道实际发送的比特速率为4*8000=32bps。

c．增量调制的基本思想是：当抽样时间间隔s t 很短时，模拟数据在两次抽样之间的变化很小，可以选择一个合适的量化值作为阶距。把两次抽样的差别近似为不是增加一个就是减少一个。这样只需用1bit 二进制信息就可以表示一次抽样结果，而不会引入很大误差。因此，此时对应每个4kHz 信道实际发送的数据速率为1*8000=8kHz。

2-43. Suppose that x bits of user data are to be transmitted over a k-hop path in a packet-switched network as a series of packets, each containing p data bits and h header bits,with x >> p+h.The bit rate of the lines is b bps and the propagation delay is negligible.What value of p minimizes the total delay?

(假定x位用户数据将以一系列分组形式，在一个分组交换网络中沿着一条共有k跳的路径向前传播，每个分组包含p位数据和h位的头，这里x>>p+h。线路的传输率为b bps，传播延迟忽略不计。请问，什么样的p值使总延迟最小？) 答：所需要的分组总数是x /p ，因此总的数据加上头信息交通量为(p+h)*x/p位。 源端发送这些位需要时间为(p+h)*x/pb

中间的路由器重传最后一个分组所花的总时间为(k-1)*(p+h)/ b

因此我们得到的总的延迟为

对该函数求p 的导数，得到

令

得到

因为p＞0，所以

故

时能使总的延迟最小。

2-53. A CDMA receiver gets the following chips: (-1 +1 -3 +1 -1 -3 +1 +1). Assuming the chip sequences defined in Fig. 2-45(b), which stations transmitted, and which bits did each one send?

(一个CDMA接收器得到了下面的时间片：(-1 +1 -3 +1 -1 -3 +1 +1)。假设时间片序列如图2.45（b）中所定义，请问哪些移动站传输了数据？每个站发送了什么位?)

答：Just compute the four normalized inner products:

（1+1 3+1 1 3+1+1）d（1 1 1+1+1 1+1+1）/8=1

（1+1 3+1 1 3+1+1）d（1 1+1 1+1+1+1 1）/8=1

（1+1 3+1 1 3+1+1）d（1+1 1+1+1+1 1 1）/8=0

（1+1 3+1 1 3+1+1）d（1+1 1 1 1 1+1 1）/8=1

The result is that A and D sent 1 bits, B sent a 0 bit, and C was silent.

Chapter3{上网作业英语}.

3-3.The following data fragment occurs in the middle of a data stream for which the byte-stuffing algorithm described in the text is used: A B ESC

C ESC FLAG FLAG D. What is the output after stuffing?

(数据片断（A B ESC C ESC FLAG FLAG D）出现在一个数据流的中间，而成帧方式采用的是本章介绍的字节填充算法，请问经过填充之后的输出时什么？) 答：After stuffing, we get A B ESC ESC C ESC ESC ESC FLAG ESC FLAG D.

3-15. A bit stream 10011101 is transmitted using the standard CRC method described in the text. The generator polynomial is x3 + 1. Show the actual bit string transmitted. Suppose the third bit from the left is inverted during transmission. Show that this error is detected at the receiver's end.

(利用本章中介绍的标准多项式CRC方法来传输位流1001101。生成器多项式为x3+1。请给出实际被传输的位串。假设在传输过程中左边第三位变反了。请证明，这个错误可以在接收端被检测出来。)

答：The frame is 10011101. The generator is 1001. The message after appending three zeros is 10011101000. The remainder on dividing 10011101000 by 1001 is 100. So, the actual bit string

Transmitted is 10011101100. The received bit stream with an error in the third bit from the left is 10111101100.Dividing this by 1001 produces a remainder 100, which is different from zero. Thus, the receiver detects the error and can ask for a retransmission.

3-18. A 3000-km-long T1 trunk is used to transmit 64-byte frames using protocol 5. If the propagation speed is 6 µsec/km, how many bits should the sequence numbers be?

(一条3000公里长的T1骨干线路被用来传输64字节的帧，两端使用了协议

5。如果传输速度为6us/公里，则序列号应该有多少位？)

答：为了有效运行，序列空间（实际上就是发送窗口大小）必须足够的大，以允许发送方在收到第一个确认应答之前可以不断发送。信号在线路上的传播时间为 6×3000=18000us，即18ms。 在T1 速率，发送64 字节的数据帧需花的时间：64×8÷(1.536×106)= 0.33us。 所以，发送的第一帧从开始发送起，18.33ms 后完全到达接收方。确认应答又花了很少的发送时间（忽略不计）和回程的18ms。这样，加在一起的时间是36.33ms。发送方应该 有足够大的窗口，从而能够连续发送36.33ms。 36. 33/0.33=110 也就是说，为充满线路管道，需要至少110 帧，因此序列号为7 位。{上网作业英语}.

3-22. In protocol 6, when a data frame arrives, a check is made to see if the sequence number differs from the one expected and no_nak is true. If both conditions hold, a NAK is sent. Otherwise, the auxiliary timer is started. Suppose that the else clause were omitted. Would this change affect the protocol's correctness?{上网作业英语}.

(在协议6中，当一个数据帧到达的时候，需要执行一个检查，看它的序列号是否与期望的序列号不同，并且no_nak为真。如果这两个条件都成立，则发送一个NAK。否则的话，启用辅助定时器。假定else子句被省略掉。这种改变会影响协议的正确性吗？)

答：可能导致死锁。假定有一组帧正确到达，并被接收。然后，接收方会向前移动窗口。

现在假定所有的确认帧都丢失了，发送方最终会产生超时事件，并且再次发送第一帧，接收方将发送一个NAK。然后NONAK 被置成伪。假定NAK 也丢失了。那么从这个时候开始，发送方会不断发送已经被接收方接受了的帧。接收方只是忽略这些帧，但由于NONAK 为伪，所以不会再发送NAK，从而产生死锁。如果设置辅助计数器（实现“else”子句），超时后重发NAK，终究会使双方重新获得同步。

3-31. Consider an error-free 64-kbps satellite channel used to send 512-byte data frames in one direction, with very short acknowledgements coming back the other way. What is the maximum throughput for window sizes of 1, 7, 15, and 127? The earth-satellite propagation time is 270 msec. （考虑在一个无错误的64kbps卫星信道上单向发送512字节的数据帧，有一些非常短的确认从另一个方向回来。对于窗口大小为1、7、15、和27的情形，最大的吞吐量分别是多少？从地球到卫星的传输时间为270ms。）

答：使用卫星信道端到端的传输延迟为270ms，以64kb/s 发送，周期等于604ms。发送一帧的时间为64ms，我们需要604/64=9 个帧才能保持通道不空。 对于窗口值1，每604ms 发送4096 位，吞吐率为4096/0.604=6.8kb/s。

对于窗口值7，每604ms 发送4096*7 位，吞吐率为4096*7/0.604=47.5kb/s。 对于窗口值超过9（包括15、127），吞吐率达到最大值，即64kb/s。

上网作业英语篇五

网络英语作业平台在教学中的运用

网络英语作业平台在教学中的运用

湖北省当阳市富里寺小学 张春菊

对英语教师来说，如何摆脱耗时低效的传统英语教学方法，让学生轻松快乐的学习英语是一个难题。随着网络时代的到来，很多英语学习网站纷纷出现，各有特色，对英语教学的确起到了很大的促进作用。但是比较高的费用阻挡了大多数孩子网络学习英语的梦想。我和很多家长和老师讨论过这个话题，如果有一家收费比较低的学习网站而且寓教于乐，能让学生在轻松愉快中学习语言该有多好。在一位老师的介绍下接触到了一起作业网，马上就被其吸引住了。这就是我们需要的学习网站，不仅免费而且作业形式新颖多样，符合小学生的年龄特点，在游戏中轻松习得语言。我如获至宝，马上注册，建立班级，导入学生名单，打印学生帐号密码，发动学生和家长参与。就这样，我们城南二小三年级开始了网络英语作业的快乐之旅。转眼间，我们已经使用一起作业平台有两个月了，学生的英语水平得到了明显的提升，学生上课时不再羞于说英语，而是大胆大声地开始读英语说英语了，和同伴的交流也流畅了很多，课堂气氛活跃起来了。那么如何将网络英语作业平台与英语教学更好地融合起来呢？下面我来谈一谈我是怎样运用一起作业网来进行英语教学的。

一、充分认识和了解一起作业网的优势和特点

1、一起作业网是以游戏化作业形式来布置作业，学生非常喜爱，能够让学生在轻松快乐的氛围中提升英语能力。如词汇作业有正义法官、海底世界、阻击小偷、拳击擂台、超级弹跳、海岛冒险和功夫小子等形式；听说作业有声波守卫、背诵课文和魔法暗语等形式；语感练习有顽皮小鳄鱼和高能列车等形式。这些作业形式活泼，充满乐趣，学生不再感到英语是那么枯燥乏味。

2、 学生在完成作业后，可以与同班同学合作学习，进行趣味PK，作业完成的越好，战斗力越强，从而增添了学生做好作业的信心和动力，形成良性循环，培养学生的合作学习能力。

3、 一起作业网有强大的自主学习平台，学生可以在作业前自主选择内容进行练习，平台能够自动纠正学生的发音错误，并且即时反馈结果，学生可以反复练习出现错误的内容，快速纠正，从而养成良好的发音习惯，实现了让学生在课后进行个性化自主学习。

4、一起作业网采用了高效习题训练形式，注重给学生减负但是不降低学习质量。这些习题覆盖了全国几十套教材，拥有多个版本题库；拥有海量的多样化的题型，紧扣教学重难点，涵盖了每个单元知识点；题型根据难度划分，老师可以根据本班学生实际情况布置难度适宜的作业。

5、 老师通过平台，可以轻松了解学生的作业完成情况和效果，从而更好地指导学生的学习。学生每次练习后，系统都会自动检查，自动判分，减轻了老师的负担。

二、引导和鼓励学生积极参与网络英语作业

人都是有惰性的。学生在熟悉了一起作业网的作业流程以后，不再感到新鲜了，作业完成情况出现了下滑的迹象，说明有的学生不能坚持下来。原因是什么呢？由于电子作业不是强制性的作业，再加上有的学生没有坚强的毅力，想起来就做，想不起来就不做；还有个别学生家里没有电脑，不能上网，没有办法完成电子作业。那么怎么才能让学生坚持下去呢？我采取了这样一些措施：1、合理布置电子作业。根据三年级学生日常学习情况，征求同学们的意见，时间宽裕的时候就多布置作业；时间紧张的时候就少布置作业或不布置作业。2、把电子作业作为日常英语作业，对完成情况提出明确要求。家中有电脑的学生在没有特殊情况下要必须完成电子作业，家中没有电脑的同学可以到同学家里或亲戚家里来完成。3、定期公布电子作业完成的比较好的同学的成绩，奖优树先，形成良好的学习氛围。4、网站奖励老师的金币兑换的奖品将用来奖励年级完成电子作业比较好的同学，充分调动学生参与电子作业的积极性和主动性。

三、科学合理安排作业时间，与日常英语教学相结合

1、帮助学生制定电子作业完成时间表和计划表。学生主要在家中完成电子作业，有时候因为做其他科目作业而耽误了电子作业。于是我和学生讨论，并和家长协商，让学生放学回家后先完成电子作业，然后再做其他作业；如果情况允许，与微机老师协商，在自习课时，让学生到微机室来完成电子作业。

2、将电子作业与学校的点读课题有机结合起来。我校参与了国家十二五课题，利用点读笔来促进小学生英语听说读能力的提高，学生每天都在用点读笔进行英语学习。学生用点读笔反复点读、跟读和模仿单词和课文，等熟练之后，再来完成电子作业，学生的英语发音情况在电子作业中得到了检验，学生的积极性高涨，效果非常明显。于金弘同学和李小艺同学就是典型的例子。这两位同学英语发音带有非常明显的方言特点，老师多次纠正但效果不大。自从开始在一起作业网上做电子作业以后，这两位同学的发音有了明显的改进。他们经常高兴地和我说，电子作业太好了，学习英语再也不发愁了。

四、一起作业网学习平台使用情况及效果分析

1、一起作业网有非常简单易用的学习界面。在老师的帮助下，三年级学生只用一节课时间就学会了使用一起作业网，并且一起作业网还会自动优化每一个学生的学习过程。到目前为止，我共为学生布置了四十次电子作业，每次都有百分之八十的学生能完成电子作业，而且成绩有了大幅度的提升。最明显的是学生听说能力的快速提升。在刚开始接触英语的时候，多数学生不敢开口讲英语，生怕自己说错；部分学生的口语深受地方方言的影响，难以纠正。现在学生在一起作业平台的帮助下，发音得到了纠正，提高了自信心，在课堂上也敢大胆说英语了，在小组展示的时候，与同伴互动更顺畅了，有时候还会自由进行对话。

2、一起作业网有非常灵活的评价方式。老师可以帮学生选择适合的训练课程。教师可以检查每个学生的完成情况，例如学习时间、新学词汇和课文的学习情况等。教师还可以看到和听到每个学生的发音情况。这样老师就可以随时调整每天的教学计划和进度。对于普遍的重点难点，老师还可以在课堂上统一进行讲解。学生只需一两天就能掌握每个单元的词汇、短语和课文，这样教师上课就可以侧重于训练学生的听、说、读、写，使英语学习进入崭新的阶段，教学效率比以前提高了很多，真正做到学生乐学，教师乐教。

五、一起作业平台在教学实践中出现的问题分析

（一）、正确对待成绩差的学生

教师应该把在一起作业学习中成绩差或不能按时完成的学生视为需要帮助的“患者”，对他们持更为宽容的态度。无论什么作业，学生完成的质量肯定不一样，有好有坏。对待成绩差的学生，一定要以鼓励为主，帮助他们分析原因，树立信心。充分发挥小组学习的作用，让好的学生帮助差的学生，互相交流经验和方法。要让学生明白，无论学习什么知识，唯有勤奋努力才是正道，坚持就会有收获，坚持才会获得成功。

（二）、为学生营造良好学习环境

一起作业网学习平台应在安谧、宁静的环境中完成，避免外界干扰造成学生情绪上的不安和心理上的骚动。特别是听说练习需要录音，更需要一个安静的环境，任何外界的噪音都会影响学生录音的效果。所以我和家长及时沟通交流，让他们为孩子营造一个良好的学习环境，得到了广大家长的大力支持。

（三）、定期公布学生电子作业完成情况，做好数据收集和效果反馈

1、定期检测：抓住效果测试、学后测试进行定期检测。

2、效果反馈：通过数据收集整理，分析学习效果（测试成绩、电子作业成绩、学生听说水平等），适时监督鼓励和帮助学生获得更大的进步。

六、对一起作业网使用情况的总结与反思

1、运用一起作业网可以提高学生的学习兴趣，大大提高学习效率，特别是在培优补差方面能发挥更大的作用，因为一起作业网能做到量身定做，根据不同的班级情况可以布置不同的作业，能真正做到因人而异，因材施教。{上网作业英语}.

2、一起作业网可以在提高学生英语水平的同时提高学生的自主学习的能力。

3、一起作业网能否取得好的成效，家长重视与否尤为重要，因为学生多数是在家中完成电子作业的；实施过程中，严格的管理是成败的关键。这么一个好的工具，如果只是流于形式，让学生放任自流，那是不会有任何成效的。

一起作业网的使用，使学生真正成为英语学习的主人。其成功之处在于极大地激发了学生