1、Listening and vocabulary,Guess the Chinese meaning of the words according to the pictures.,Volcanic eruption,crater,dust cloud,nuts,galaxy,meteorite,seeds,Some words related to dinosaurs,Complete the sentences with the words below. adapt, climate, disappear, extinct, evolve, survive,1. The _ of a co
2、untry is the type of weather it has.,climate,2. If an animal or plant is _, it existed a long time ago but doesnt exist now. 3. When things _, they no longer happen or exist. 4. When people or animals _, they dont die after an accident or an illness.,extinct,disappear,survive,5. If you can _ to some
3、thing, you can change in order to make the situation better. 6. When animals or plants _, they change and develop over a long period of time.,adapt,evolve,Discussion 1. How much do you know about dinosaurs? 2. Have you ever seen any films or read any books about dinosaurs?What interests you most?,3.
4、 In your opinion, why dinosaurs disappeared from the earth? Give your reasons.,Open answers,Work in pairs and answer the questions about dinosaurs. (Listen and check) 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 a
5、nd meat 3. They became extinct _years ago.A. 600,000 B. 6 million C. 66 million,4. Their nearest relatives today are _.A. birds B. fish C. mammals,Tapescript,Good afternoon, and welcome to this weeks edition of Mysteries of Nature. Todays topic is a big one-its dinosaurs, those strange creatures whi
6、ch ruled the earth for no less than two hundred million years, some of them were plant eaters, others were like the infamous,Tyrannosaurus Rex, carnivores who lived off meant and who attacked the more peaceful plant eating dinosaurs. Not all dinosaurs were bigsome were the size of chickens, and in f
7、act the closest 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 66 million years ago, and to throw light on the subject, weve invited one of the worlds foremost experts on the subject, from the Pi
8、tt Rivers Museum in Oxford, Dr Roger Binfield.,Listen to the second part of the tape and discuss how many explanations are given for the disappearance of the dinosaurs?,Five.,1. A meteorite hit the earth.,2. They stopped evolving.,3. They killed each other .,4. A volcanic eruption.,5. Cancer caused
9、by radiation.,Listen to the tape again and decide which statements are true .A huge meteorite may have hit all the dinosaurs. 2. Perhaps a dust cloud made the world dark. 3. A meteorite caused a volcaniceruption.,4. The dinosaurs had to eat seeds and nuts to survive. 5. Perhaps too much fighting cau
10、sed the dinosaurs to die out. 6. One scientist believed the dinosaurs became ill when they ate the wrong food.,7. There may be dinosaurs today living in other galaxies. 8. Dr Binfield thinks the crater near Mexico was caused by a meteorite.,A discussion after listening,Which theory do you think is m
11、ost likely, and why?,Students answers,Tapescript,(PRES=Presenter, DR= Dr Binfield PRES: Good afternoon, Dr Binfield, and welcome to the pragramme. DR: Thank you. PRES: Im going to come straight to the point , even if I think theres not going to be an easy answer.,Why did the dinosaurs suddenly disap
12、pear, almost overnight, 66 million years ago? DR: Youre right. Theres no easy answer to that question, but there are lots of theories. PRES: Such as?,DR: Well, probably the most widely accepted theory is the meteorite one PRES: You mean the earth was hit by a meteorite from space? DR: Yes, thats rig
13、ht. PRES: And the dinosaurs died immediately?,DR: Not exactly, not all of them. The meteorite may have hit the earth with the 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. PRES: But other animals survived?,D
14、R: Yes, smaller creatures like mammals, which may have survived because they ate nuts and seeds. PRES: What other theories are there? DR: Lots. The dinosaurs may have stopped evolving, and been unable to adapt to changes in the climate. Or they might have killed each other.,PRES: Is that possible? D
15、R: Oh yes. They spent a lot of time in fighting. There again, it might have been volcanic eruptions, not a meteorite, which sent up clouds of dust and cut off the light. One very recent theory says they died of cancer.,PRES: Cancer? You mean the dinosaurs died out because they fill ill? DR: Yes. As
16、a result of radiation coming from a dying star somewhere in our galaxy PRES: That sounds fantastic. DR: Well, I think its unlikely, but its not impossible.,PRES: Which theory do you believe? DR: Id go for the meteorite. I think its the most likely one. And in the Caribbean sea, off the coast of Mexi
17、co, where the meteorite may have landed,Language points of the listening practice live off: 靠挣钱,过日子 Mom used to live off the interest from her savings. 妈妈过去靠存款的利息过日子。 2. Rick disapproves of people who are living off the welfare. 里克不赞成靠福利救济过日子的人。,2. go for: 攻击,争取,喜欢,对适应,卖得价钱,1) The presidential candi
18、dates went for each other in the papers.总统候选人在报纸上互相攻击。 2) What he said about you goes for me too.他关于你的一番话也适应于我。,3) Jackson is going for his second gold medal here. 杰克逊正在争取他在这儿的第二块金牌。 4) Annie tends to go for older men. 安妮喜欢年龄较大的男人。 5) How much did that car go for? 那辆车卖了多少钱?,Look at the words and phr
19、ases below and choose the best explanation.,If something is back in the news it is _.A. in the news again.B. not an important news story,2. If you throw light on something you _.A. switch on alightB. make it easier to understand 3. If you come straight to the point you _.A. say what you want to sayB
20、. attack someone,4. If something happens almost overnight it happens_.A. quickly B. in the dark 5. Die out is used to speak about _.A. one person or animalB. a whole species,6. Id go for the meteorite means _. A. choose B. forget 7. Thats quite something refers to something _.A. ordinary B. extraordinary,
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