人教版高一英语课件：nit16 Scientists at work.ppt

Period 1 Biology laboratory 1.Can you give an example of what you learn about for each field of science? In physics we learn about the laws of the universe. In chemistry we learn about the way different liquids and materials react with each other. In biology we learn about life on earth. Listening1. Listen to the tape, tick the things that Mrs Zhu talks about. safety in the lab experiments car accident gloves long hair shoes gases liquids flames Listen carefully and answer the following questions. 1.What is the most important thing students should remember? Safety comes first. 2.What is the first thing students should do when they come into the lab? Follow the teacher’s instructions. Maglev train Advantages: Fast Clean Doesn’t make any noise Disadvantage Much too expensive Speaking----EXAMPLE: A :Shanghai is the first city in the world to have built a high-speed maglev train, from the city to Pudong Airport. B: Well, in my opinion ,it’s a waste of money. It’s much too expensive. A: It’s expensive, but very fast. In the future, people can travel from Beijing to Shanghai in a few hours. B: Flying is just as fast. The money would be better spent building more roads or railways in other parts of China. A: More roads and trains mean more pollution. This new train has no wheels and no engine. It’s fast and clean and it doesn’t make any noise, as planes do. We should make more use of this technology. * * Physics Laboratory Chemistry Laboratory What English words do you think of for each subject of science? physics power physical change physics experiment electricity gravity force matter energy Chemistry substance element gas liquid chemical change metal solid chemistry experiments biology microscope Living thing animal being cell germ plant biology experiment What do we have to be careful with in a lab? 3.Why should students be careful smelling from bottles? Bottles may contain dangerous gas. 4.What is to be done when anything gets into yo