人教版高中英语必修五unit3_L.doc

Unit3 Life in the future
教学案设计

一、 教案背景
1. Learn some new words and expressions.
2. Help the students to talk about life in the past, at present and in the future.
3. Enable the students to describe the life in the past, at present and in the future.

二、 教学课题 Life in the future
学习并了解未来生活的各个方面用与现在生活的不同之处， 学习外星人的生活方式。
1. Target language 目标语言
a. 重点词汇和短语
constantly, remind, vehicle, carriage, bathroom, temple, private, settlement, impression, constant, jet, previous, tablet, capsule, opening, surrounding, lack, ache, mask, bend, press, swift, swiftly, master, sight, flash, switch, optimistic, length, take up, lack of, lose sight of, sweep up, catch sight of
b. 重点句式
2. Ability goals 能力目标
Enable the Ss to talk about the life in the past, at present and in the future.
3. Learning ability goals 学能目标
Help the Ss learn how to describe the life in the past, at present and in the future.

三、 教材分析
本单元以“Life in the future”为中心话题，旨在通过本单元的学习，让学生大胆发挥想象，对人类今后的生活环境，生活方式进行猜测，并在此基础上，对人类的种种活动进行反思，提倡环保生活意识。同时让学生学会过去分词作定语和作状语的不同用法。最后让学生将本单元所讨论的话题和推测手法相结合，学习怎样写report。

四、 教学方法
Fast and careful reading; asking and answering activity; individual, pair or group work.
Teaching aids 教具准备
A computer and a projector.
Teaching procedures ＆ ways 教学过程与方式

五、 教学过程
Step Ⅱ Pre-reading
Get the Ss to discuss the problems that human beings are facing today (such as pollution, all kinds of shortages). Make a prediction about the future: which problems may be solved, and which will still be there. This part will prepare the Ss for the text.
T: We all know that as our society develops, we have got much benefit. But at the same time, we have to face lots of problems. Can you find out what kind of problems human beings are facing?
S: Pollution.
S: Population is becoming larger and larger.
S: The shortage of resources.
T: Yes! Then can you predict which problems can be solved in the future? And which ones will still be there?
S: I think the problem of population will be solved in the future, because now more and more countries have begun to control the birth rate.
S: I think the problems of pollution and shortage of resources will still be there, and will even get worse.
S: I don’t think so. Now scientists all over the world are trying their best to develop new resources that human beings can make use of, such as solar energy. In my opinion, the problems can be solved one by one.
Step Ⅲ Reading
T: Now please open your books and turn to page 17. Let’s read the passage First Impressions. Read it quickly and then tell me what it is about.
Show these three questions on the screen.
1. How did I feel as soon as I was transported to the future?
2. How did Wang Ping solve this problem?
3. What do you think has caused this kind of problem?
Give the Ss 1 or 2 minutes to think and they can discuss with their partners. Then check the answers.
After the Ss read the paragraphs, ask them the following questions.
1. What did Wang Ping’s house look like?
2. What was the green wall made of? What’s the purpose of building this kind of green wall?
3. How can you produce a TV set in Wang Ping’s house?
Sample answers:
1. His house is a large bright, clean room. It had a green wall, a brown floor and soft lighting.
2. The green wall was made of trees. The leaves of the trees will provide much-needed oxygen to the house.
3. You can just flash a switch on the computer screen and a TV set will rise from the floor.
T: So we can see life in the future is much more convenient and much easier than our present life.
Step Ⅳ Follow-up Activity
Get the Ss to compare life at present and in the future. Find out the changes on several items. Now let’s make a prediction about future and see what will be changed in the future. I will give you 3 minutes to discuss in pairs, and after your discussion please finish the following chart.
Sample answers:
Items

Life at present
Life in the future

(Changes) good or bad? Reasons?
Environment

Air pollution and water pollution; resource shortage

The situation will get worse and worse
The development of our society will cause human being to develop more and more resources; and the development of industry will cause worse pollution to our environment
Transport
Airplane, car, train, boat and helicopter
Spacecraft, time travel, personal flying car or bike
More convenient
Education
People receive education in school
People receive education on the Internet; can choose the subjects and the teachers they like
Have more chances to receive different knowledge
Houses
Flats in high rise buildings; with kitchens and bathrooms
Cozy, modern flats, furniture in walls and floor

Then let the Ss do Exx. 2 ＆ 3 on page 19. A few minutes later, check the answers.
Sample answer to Ex. 3:
Step Ⅴ Homework
Review the key sentences in the text.

六、 教学反思

I Grammar
The Ss will learn the usage of the past participle in different situations.
Task 1 Make clear to the Ss the usage of the past participle as the adverbial.
T: Now please look at the sentence:
Worried about the journey, I was unsettled for the first few days.
= As I was worried about the journey, I was unsettled for the first few days.
过去分词作状语：
用作状语的过去分词通常来自及物动词。过去分词用作状语时，修饰主句的谓语动词，意义上相当于状语从句，表示时间、条件、原因、伴随状况等。过去分词作状语，前边往往可以加when, while, as if, as though。一般说来，这种结构的逻辑主语必须与主句的主语一致。例如：
Whenever praised, she blushes.（作时间状语）
= Whenever she is praised, she blushes.
United, we stand; divided, we fall.（作条件状语）
= If we are united, we stand; if we are divided, we fall.
Written in great haste, this book is full of errors.（作原因状语）
= Because this book is written in great haste, it is full of errors.
Mary was reading a love story, completely lost to the romantic life.（作伴随状语）
= Mary was reading a love story, and she was completely lost to the romantic life.
Although born in Germany, John lives and works in U.S.A.（作让步状语）
= Although John was born in Germany, he lives and works in U.S.A.

Task 2 Make clear to the Ss the usage of the past participle as the attribute.
T: Now please look at these two sentences:
1. I followed him to collect a hovering carriage driven by computer.
= I followed him to collect a hovering carriage that / which was driven by computer.
2. Tomorrow you will be ready for some visits organized by the company.
= Tomorrow you will be ready for some visits that / which was organized by the company.
过去分词作定语：
a. 用作前置定语的过去分词通常来自及物动词，带有被动意义和完成意义。例如：
We like skating in the frozen lake in the winter.
= We like skating in the lake which has been frozen in the winter.
How many finished products have you got up to now?
= How many products that have been finished have you got up to now?
来自不及物动词的过去分词很少能单独用作前置定语，能作这样用的仅限以下几个词，这时仅表示完成意义，不表示被动意义：
a retired worker = a worker who has retired
an escaped prisoner = a prisoner who has escaped
a faded / withered flower = a flower that has faded / withered
fallen leaves = leaves that have fallen
the risen sun = the sun that has just risen
a returned student = a student who has returned
vanished treasure = treasure that has vanished
b. 用作后置定语的过去分词通常也来自及物动词，表示被动意义和完成意义。这明相当于一个定语从句。例如：
Things seen are better than things heard.
= Things that / which are seen are better than things that / which are heard.
The lobster broiled over charcoal was delicious.
= The lobster that / which was broiled over charcoal was delicious.
Then let the Ss do Exx. 1－4 on pages 20 ＆ 21 and exercises in USING STRUCTURES in Workbook to consolidate what they have learnt. And check the answers. If time permits, let the Ss learn the following usage of the past participle in the class.
过去分词作表语：
过去分词作表语表示主语所处的状态。用作表语的过去分词大多来自及物动词；不及物动词的过去分词能作表语的只限于少数表示位置转移的动词，如go, come, assemble等，它们用在联系动词之后，表示完成意义，无被动意义。例如：
The man looked quite disappointed.
He is greatly discouraged by her refusal.
His hair is nearly all gone.
已经形容化了的过去分词大多可作表语，常见的有:
accomplished, amazed, amused, astonished, broken, closed, completed, complicated, confused, crowded, devoted, disappointed, discouraged, drunk, excited, frightened, hurt, interested, lost, satisfied, surprised, worried等。
过去分词作宾语补足语：
a. see, hear, feel, find, think等表示感觉和心理状态的动词可以带过去分词作宾语补足语。例如：
Tom found himself involved in an awkward situation.
I saw Tom dressed like a beggar in the street.
Everybody thought the match lost until the last minute.
b. make, get, have, keep等表示“致使”意义的动词可以带过去分词作宾语补足语。例如：
I have my clothes washed everyday.
Don’t get your schedule changed; stay with us in the class.
He’s trying to make himself understood.
Please keep us informed of the latest price.
c. like, want, wish, order等表示希望、要求、命令等意义的动词可以带过去分词作宾语补足语。例如：We don’t like such topics (to be) discussed in class.
I wish this problem (to be) solved this week.

Step Ⅳ Homework
T: After class, please review what we’ve learnt this class and do more exercises. Then preview the READING TASK in Workbook.