1. For Senior 1
学年度第45期总第641期
Race to White House

2. Expressions & Vocabulary:
nomination n. 提名
nominee n. 被提名者
primary adj. 主要的；初级的
offend v. 冒犯；使......不愉快
terrorism n. 恐怖主义
stand for... 支持；代表
take office 就职
a plain-speaking man 讲话直率的人

3. Complete the sentences with the words in the box.
adapt climate disappear extinct evolve survive
The ______ of a country is the type of weather it has.
If an animal or plant is _______, it existed a long time ago but doesn’t exist now.
When things _________ , they no longer happen or exist.
When people or animals _________, they don’t die after an accident or an illness.
If you can _________ to something, you can change in order to make the situation better.
When animals or plants __________, they change and develop over a long period of time.
climate
extinct
disappear
survive
adapt
evolve

6. Tyrannosaurus Rex, [tirænəˈsɔ:rəs]霸王龙
Tyranny + dinosaur
Carnivore [ˈkɑ:nəˌvɔ:] 食肉动物

7. Answer the questions about dinosaurs.
1. Dinosaurs ruled the earth for about _____ million years.
a) two b) twenty c) two hundred
2. They ate _______.
a) plants b) meat c) both plant and meat
3. They became extinct ________ years ago.
a) 600, b) 6 million c) 66 million
4. Their nearest relatives today are _______.
a) birds b) fish c) mammals

8. Listen to part one again and fill in the blanks.
Good afternoon, and welcome to this week’s edition of 1) __________of Nature. Today’s topic is a big one---it’s dinosaurs, those strange creatures which 2)________ the earth for no less than two hundred million years, some of them were plant 3)______, others were like the 4) _______________ Tyrannosaurus Rex, a carnivores who 5) ________meat and who attacked the more peaceful plant eating dinosaurs.

9. Not all dinosaurs were big --- some were the size of 6)__________, and in fact the 7)_______ things to dinosaurs living today are actually birds. But the mystery we are going to talk about today is why the dinosaurs suddenly disappeared exactly 8)________ million years ago, and to 9)__________________the subject we’ve invited one of the world’s 10) _______experts on the subject, from the Pitt Rivers Museum in Oxford, Dr Roger Binfield.

10. Listen to part one again and fill in the blanks.
Good afternoon, and welcome to this week’s edition of 1) __________of Nature. Today’s topic is a big one---it’s dinosaurs, those strange creatures which 2)________ the earth for no less than two hundred million years, some of them were plant 3)______, others were like the 4) _______________ Tyrannosaurus Rex, a carnivores who 5) ________meat and who attacked the more peaceful plant eating dinosaurs.
Mysteries
ruled
eaters
infamous
lived off

11. chickens closest 66 throw light on foremost
Not all dinosaurs were big --- some were the size of 6)__________, and in fact the 7)_______ things to dinosaurs living today are actually birds. But the mystery we are going to talk about today is why the dinosaurs suddenly disappeared exactly 8)________ million years ago, and to 9)__________________the subject we’ve invited one of the world’s 10) _______experts on the subject, from the Pitt Rivers Museum in Oxford, Dr Roger Binfield.
chickens
closest 66
throw light on
foremost

12. How did dinosaurs disappear?

13. meteorite [ˈmitiəˌraɪt]
Listen to the second part again. Number the key words and phrases when you hear them.
crater
[ˈkreitə]
meteorite [ˈmitiəˌraɪt]
nuts and seeds
dust cloud
galaxy
[ˈɡæləksi]
volcanic eruption

14. meteorite [ˈmitiəˌraɪt]
Listen to the second part again. Number the key words and phrases when you hear them. 6 3 1
crater
[ˈkreitə]
meteorite [ˈmitiəˌraɪt]
nuts and seeds 2 4 5
dust cloud
galaxy
[ˈɡæləksi]
volcanic eruption

15. How many explanations are given for the disappearance of the dinosaurs?
A meteorite hit the earth.
They stopped evolving.
They killed each other.
A volcanic eruption.
Cancer caused by radiation.

16. F T F F T F F T Decide whether the statements are true or false.
A huge meteorite may have hit all the dinosaurs.
Perhaps a dust cloud made the world dark.
A meteorite caused a volcanic eruption.
The dinosaurs had to eat seeds and nuts to survive.
Perhaps too much fighting caused the dinosaurs to die out.
One scientist believes the dinosaurs became ill when they ate the wrong food.
There may be dinosaurs today living in other galaxies.
Dr Binfield thinks the crater near Mexico was caused by a meteorite. F T F F T F F T

17. Presenter:Good afternoon Dr Binfield, and welcome to the programme.
Dr Binfield:Thank you.
Presenter:I'm going to come straight to the point, even if I think there's not going to be an easy answer: why did the dinosaurs suddenly disappear, almost overnight, 66 million years ago?
Dr Binfield: You're right. There's no easy answer to that question, but there are lots of theories.
Presenter:Such as?
Dr Binfield: Well, probably the most widely accepted theory is the meteorite one...
Presenter: You mean the earth was hit by a meteorite from space?
Dr Binfield: Yes, that's right.
Presenter: And the dinosaurs died immediately?

18. Dr Binfield:Not exactly, not all of them
Dr Binfield:Not exactly, not all of them. The meteorite may have hit the earth with such force that it created a huge dust cloud, which stopped the sunlight from getting through... so there was no light, no heat, and no food.
Presenter:But other animals survived?
Dr Binfield:Yes, smaller creatures like mammals, which may have survived because they ate nuts and seeds.
Presenter:What other theories are there?
Dr Binfield:Lots. The dinosaurs may have stopped evolving, and been unable to adapt to changes in the climate. Or they might all have killed each other.
Presenter:Is that possible?
Dr: Oh yes. They spent a lot of time fighting. There again, it might have been volcanic eruptions, not a

19. meteorite, which sent up clouds of dust and cut off the light
meteorite, which sent up clouds of dust and cut off the light. One very recent theory says they died of cancer.
Presenter: Cancer? You mean the dinosaurs died out because they fell ill?
Dr Binfield: Yes. As a result of radiation coming from a dying star somewhere in our galaxy...
Presenter: That sounds fantastic.
Dr Binfield: Well, I think it's unlikely, but it's not impossible.
Presenter: Which theory do you believe?
Dr Binfield: I'd go for the meteorite. I think it's the most likely one. And in fact there is a huge crater in the Caribbean sea, off the coast of Mexico, where the meteorite may have landed...

20. Assignment
《七中学案》Period 3 Module 6；
Read Dressing up on 21st TEENS.