必修2 Unit3 学案答案
Period 1 Reading
Skimming Task2
(1). A computer. (2).B Scanning Task3
(1)2,5,1,6,4,3 (2)FFTF (3)CCD Careful Reading Task4 (1) Match
1642 The computer grew rapidly both in size and in brainpower. 1822 The computer had grown as large as a room.
1936 The first family of computers was connected to each other. 1940s Computers were used in offices and homes.
1960s Computers connect people all over the world together. 1970s The computer began as a calculating machine.
Now The analytical machine was made by Charles Babbage. (2)Fill in the blanks Paragraph 1 Topic sentence Supporting details Over time I have been changed quite a lot. 1 calculating machine 2 analytical machine 3 universal machine 4 PC 5 laptop Paragraph 2 These changes only became possible as my memory improved. 1 tubes 2 transistors 3 chips 4 network 5 World Wide Web Paragraph 3 Topic sentence Supporting details 1
Topic sentence Supporting details Since the 1970s many new applications have been found for me. 1 communications 2 finance 3 trade 4 robots 5 mobile phones 6 medical operations 7 space rockets 8 providing a life of high quality Task5 Retelling calculating machine analytical machine universal machine smaller smaller cleverer quicker 1960s network Internet offices homes birth human race
能力提升： 答案：DDDB
Homework
3(1). name : Andy appearance: looks like a human size: as big as a human Character: competitive and co-operative ability: can move and think like a human Job: striker
(2). ①例如，当我前面没人防守有机会射一个好球的时候，我已经学会了用计算机语言向队友示意把球传给我。 ②她把观看人类比赛时所看到的一切可能动作编入我们的程序。
③不管怎样，在我过目不忘的电子脑的帮助下，运用智能就是我的一切。
Period 2 Words and expressions
I. Words and expressions
1.solve
1．上星期测试的答案在第81页。 2. no simple solution to
2. as a result:
as a result; As a result of; resulted(s) in; resulted(s) from A A 3. anyhow
这个太贵，而且颜色也不适合你。 Somehow; anyway; somewhat 4. signal
在课堂上，铃声响起，老师合上书就是我们要起立的信号。 She signalled (to) him to follow. A C 5. in a way can you
should you lose heart.
不要挡着路，靠边点让我过去。 by way of Hong Kong.
On the way; in the way;in a way;By the way; A B
2
6. arise
A great idea arose
arise from carelessness. raising;rising;aroused 7. deal with
打交道；对付 相处；处理 涉及；关于 I don’t know how to deal with the situation.
I don’t know what to do with the situation. D C 8. watch over for; out; for; over
II. Difficult sentences
1. As time went on; As With; C A 2. D D
So fast did the teacher speak
Such a noble person is he that all people respect him. D C D B A 【随堂检测】 I.选词填空
so that; From then on; went by; as a result; In reality II.单项选择
B C A A D A C III.单句翻译
1. As time went by, they became close friends. 2. He worked so hard that he made great progress. 3. She was late as a result of snow.
4. I don’t know how they dealt with / solved the problem. 5. New problems will arise from such situation.
6. Could you watch over my dog while I am on holiday?
Period3 Grammar
讲义填空答案：
1.have been changed 2. have been used 3. have been told 4. have been found 5.have，been put, used 6. have , been put, sent 习题答案：
一 选择1-5 DCDAC 6-10 BDDDB 二．转换
1.Some trees have been planted around the lake. 2.The door has been locked. 3 .The light has been turned off. 4.My homework has been finished. 5.The bridge has been rebuilt.
6 .The machine has been repaired for two hours. 三．填空
3
1 has not been painted 2 have been sent
3 has been laughed at 4 has been broken into
5 Have，been criticized 6 have not been taken away 7 has been designed
61. if/whether 62. But 63. competition 64. him 65. will drive 66. tiring 67. to travel 68. classes 69. instead 70. a
Period 4 Listening
听力答案： Text1： 1.Part A:
Task1:homework, information Task2: 51324
Task3:because, bored, information, technology, off, test, question, computers PartB;
Task1:BAD
Task2:replay, communicate, find ,out, Three, thought PratA+B
PartA: computers, books, radio and TV；books、 PartB: TV; computers Text2：
Task1:Andoids Task2:TFTFTF Task3:ABC Homework： Ⅰ.重点短语
1.after2.with3.in4.decision5.in6.together7.determined8.up9.over10.with Ⅱ.单词拼写
1．Anyway 2.artificial 3.totally 4.signal 5.character 6.appearance 7.network 8.technology 9.Personally 10.universal III 课文佳句重点词与词组练习
1. (1) simplify his explanation (2) 这孩子可以飞快地做出一道心算题。 2. From then on , refused
3. (1) download music from (2) 我们应该充分利用我们的资源。 4. are crazy about computer games
5. (1) arrived at, had left (2) reaches ,will have left
Period 5 writing
范文
Ladies and gentlemen, thank you for attending our company’s news conference. As you know, with the development of economy, people have to face various pressures. They don’t have enough time to attend to the old people in their family, which has become a serious social problem. To solve this problem, our company put
4
out the household robot, which is designed to take care of old people. It can cook meals at a fixed time which can be adjusted according to individual needs. It can also accompany old people in having a chat, playing chess, and doing exercises. Moreover, it can deal with emergencies. For example, if an old man falls ill suddenly, the robot will call doctors for help.
It would be a great help for you to own such a robot. Thank you.
5
因篇幅问题不能全部显示，请点此查看更多更全内容