高三英语Unit2 Crossing limits 教学设计及教案

Task two: Do a project.
Requirement: List the advantages and disadvantages that the Internet has brought to us by referring to the sample chart.
Sample chart:
Advantages
Disadvantages
Writer’s opinion

The Sixth Period Writing

Teaching goals 教学目标
1. Target Language目标语言
a. 重点词汇和短语
possibility, achievement, characteristic, argue, struggle against, have nothing to do with, rely on, natural process, compare, spoil, the use of technology, lower the value of, instead of spoiling, the value of
b. 交际用语
Expressions used to make decisions:
It’s hard to decide… however.
Take everything into consideration, I …
In spite of …, I still believe…
I am likely to think… because…
My choice will be…
2. Ability goals 能力目标
a. Enable students to master two kinds of useful strategies used in writing: Opinion → examples; Opinion → facts.
b. Get students learn to write a persuasive essay by following the following process: language preparation ( presenting opinions → list facts or examples) → writing → improvement.
3. Learning ability goals 学能目标
Learn how to write a persuasive essay by following a certain process.
Teaching important points 教学重点
By using stimulation strategy (language preparation), collect the needed sentence structures and words.
Teaching difficult points 教学难点
Intensify students’ ability to use mind-map strategy to collect information.
Teaching methods 教学方法
a. Team work learning.
b. Task-based learning
Teaching aids 教具准备
A projector and some slides
Teaching procedures & ways 教学过程与方式

Step I Revision
Check recitation of important sentences. (Homework-task one of the 5th period)
Check the project（homework—task two of the 5th period）
T: Every coin has two sides. Take the Internet as an example, it brought both advantages and disadvantages. On one hand, it brought us a lot of benefits and has made our life more exciting. On the other hand, it has brought problems if people don’t make proper use of it. Like the Internet, technology brings us not only good, but also controversial problems. Hope you can make proper use of Internet in your daily life.
Sample keys:
Advantages 1. Since there is a lot of information on line, you can surf the Internet for any information you need in a short time without working hard in the library. 2. It is also very convenient to communicate with others by using the Internet.3. The Internet makes our life more colorful and exciting.
Disadvantages 1. There is some information on line that is not good for the students.2. Spending too much time playing games on line will not only have a bad effect on study but also do harm to our health.3. Cybersex and on-line gambling have become drugs for many lonely people.
Writer’s opinion Make proper use of the Internet and learn to separate good plants from wild weeds.

Step II Language preparation
Task one: Fact and conclusion
T: Look at the fact box and discuss with your partner. First get familiar with the two facts and try to think hard to find what opinion the two facts support. After discussion, please come to a conclusion and show different opinions that the two facts support.
Fact box:
1. The Tibetans have lived in the Himalayas for centuries and they have adjusted to the extreme conditions.
2. In 1924, two British men were lost when their oxygen ran out.
Students discuss with their partners.
T: Since you have discussed it for some time, you may have come to different opinions. Now you are required to use the following phrases to present your opinions that you have concluded from the two facts.
Expressions used to make decisions:It’s hard to decide … however.Take everything into consideration, I …In spite of …, I still believe…I am likely to think… because…My choice will be…
Sa: Mountain climbing is dangerous and climbers have to face a lot of other dangers besides the cold and thin air. But according to my knowledge, people can only survive above the death zone for a few days even with extra oxygen. In spite of fact that Tibetans have survived in such extreme conditions for centuries, I still believe it is almost impossible for the climbers from other regions to climb Mount Everest without extra oxygen.
Sb: Since Tibetans have lived in Himalayas for centuries. It is possible for other people to adjust to such high attitude if they follow a natural process of training. Take the fact into consideration, I think that two British men were lost because they were not well prepared before their climbing.
Task two: List facts and examples
T: Here is one topic for us to list the positive and negative examples or facts. “In space travel should we use robots to take the place of human beings?” Our class will be divided into two groups. Group A will list the positive examples or facts and group B will list the facts or examples to support the negative opinions.
Sa: I think we should use robot to take the place of human beings for the following reasons. First, robots can make the job easier. Second, robot will make the exploration safer without risking people’s lives. Third, robots do better job than human, because they can be more exact in collecting and analyzing data.

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