2013-2014学年度第42期总第560期高一教案

Find cancer gene (P3)

Teens高中版编辑部

I. Lead in

What do you know about cancer? What do you think you could do in cancer research?

II. Fast reading

1. What did Han do in cancer research?

He developed software to tell the difference between mutations that cause the disease and those that do not. His software has an 81 percent accuracy rate.

2. Why did Han choose to study the gene?

1) There was a lot of information available on that one gene.

2) Someone he knew had gotten ovarian cancer because of that gene.

III. Careful reading

1. What is ISEF?

It is the world’s largest high school science research competition.

2. How did Han develop the software?

He combined biology, statistics and computer science, and he used data from public databases.

3. What did Han get at ISEF?

He won the top prize and $75,000.

4. What difficulties did Han have?

He had difficulties finding a laboratory research instructor because of his young age.

5. What can we learn from Han’s experience?

We should follow our dreams even if obstacles happen.

IV. Vocabulary

on one’s way 正在……，……发展中

be linked to 联系起来

tell the difference 区分

find a chance to 找到机会

is thought to 被认为是

V. Discussion

What are your interests? Do you think you could one day make use of your interests to help others?

 

 

Studying flightless birds (P5)

苏州工业园区第二高级中学 孙炳芳

I. Lead-in:

Have you thought about why most birds can fly while birds like ostriches can’t fly?

II. Fast-reading:

P1: p (1-         ): Introduction

P2: p (            ): The procedure and result of the research

P3: p  (            ): Conclusion

III. Detailed reading:

1.Why can’t some birds fly?

Because they have flat breastbones and smaller wings, which means they have neither the strong chest muscles nor the long wingspans to lift their bodies off the ground.

2. How did the biologists do the study?

They analyzed almost 1,500 DNA samples from different bird species, and what they later found in the DNA data proved that all flightless birds were closely related, meaning they evolved from one same ancestor.

3. What is the discovery of the study?

Flightless birds all came from flying ancestors and they flew to separate continents before losing their ability to fly. The reason why they lost the flying ability is that dinosaurs were gone and other mammals hadn’t emerged, so there weren’t any predators on the ground.

IV. Language focus:

1.They don’t have strong chest muscles and long wingspans to lift their bodies off the ground.

fell off the ladder

Keep off the grass!

an island off the coast

get off the subject

“off” 的意思是“离开”

2. They evolved from one same ancestor.

Do you know how TVs evolved into the flat-screen ones available now?

3. How did they end up on all seven continents?

What would you do if your efforts ended in failure?

I hope all of you will end up _________ after going through the painstaking, but also enjoyable, three years of schooling.

4. The bird was previously thought to not belong to the flightless bird group.

He was previously thought to be________, but it turned out that he was a ________ boy.

5. However, their DNA says otherwise.

What’s the meaning of “otherwise” here?

It means differently.

 

Dig deep inside (P6)

苏州工业园区第二高级中学 孙炳芳

I. Lead-in:

Can you name some of your strengths?

Actually, all of us have great potential. What we need to do is have the wisdom and patience to explore ourselves and realize our potential.

II. Fast-reading:

P1: p (1-          ): The farmer sold the farm in order to search for diamonds.

P2: p (             ):  Totally by accident, the man who bought the farm found that it was full of diamonds.

P3: p (             ): The moral of the story.

III. Detailed reading:

1.What happened to the farmer after he sold his farm to search for diamonds?

He failed to find diamonds and threw himself into a river and drowned.

2. How did the man who bought the farm find the diamonds?

He happened to be crossing a small stream when he saw something gleaming at the bottom of it.

3. What did the farm turn out to be?

It turned out to be the most productive diamond mine on the entire African continent.

4. What lesson can we learn from the story?

Each of us is standing in the middle of his or her own acre of diamonds. If we had the wisdom and patience to explore ourselves, we could find that we contain all the riches we need to succeed. 

IV. Discussion:

After reading the story, can you also explore yourself a little and tell us how you can make full use of your advantages and make great progress?

V. Language focus:

1.Broke and worn out, he threw himself into a river and drowned.

Hungry and worn out after the trip, I_________________ upon getting home.

Every day, _________ wear me out.

2. He happened to be crossing a small stream on his property one day when…

I was doing my homework at home during the weekend when_________.

I was wandering in the street when_______________.

3. A visitor admired the stone, looked closely at it and nearly fainted.

At first sight, that sentence is perfect, but when you look more closely you can see that ____________.

He fainted in class because_________.

4. The farm turned out to be the most productive diamond mine on the entire African continent.

What would happen if English turned out to be a subject that isn’t tested on exams?

5. If the farmer had thoroughly explored his own property, his wildest dreams would have come true.

If you had thoroughly gone over the passage, you would have _______.