人教版高一英语课件：Unit 16Scientists at work

1、 period 1 physics laboratoryphysics laboratory chemistry laboratory 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

2、other. in biology we learn about life on earth. what english words do you think of for each subject of science? physicsphysics powerpower physical changephysical change physics physics experimentexperiment electricityelectricity gravitygravity forceforce mattermatter energyenergy chemistrychemistry

3、substancesubstance elementelement gasgas liquidliquid chemical chemical changechange metalmetal solidsolid chemistry chemistry experimentsexperiments biologybiology microscopemicroscope living thingliving thing animalanimal beingbeing cellcell germgerm plantplant biology biology experimentexperiment

4、 what do we have to be careful with in a lab? listening 1. 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 stud

5、ents should remember? safety comes first. 2.what is the first thing students should do when they come into the lab? follow the teachers instructions. 3.why should students be careful smelling from bottles? bottles may contain dangerous gas. 4.what is to be done when anything gets into your eyes? imm

6、ediately wash your eyes with a lot of water. 5.what should students do before leaving the lab? clear everything away and leave the classroom neat and clean. wash your hands with water and soap. turn off the lights and shut the windows. maglev train advantages: fast clean doesnt make any noise disadv

7、antage much too expensive speaking 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 ,its a waste of money. its much too expensive. a: its expensive, but very fast. in the future, people can

8、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. its fast and clean and it doesnt make any nois

9、e, as planes do. we should make more use of this technology. pair work: discuss the advantages and disadvantages of the following scientific discoveries and applications, then make dialogues with your partners. cloningcloning advantagesadvantages 1.can help some women have babies 2.can help medical

10、research disadvantagesdisadvantages 1.it is not natural to make people 2.dangerous, people use it to do strange things nuclear energynuclear energy advantagesadvantages 1.can make all the electricity we need 2.is a limitless resource disadvantagesdisadvantages 1.unsafe to all life if not controlled 2.can be expensive to build/repair computercomputer advantagesadvantages 1.makes communication faster 2.can keep information better disadvantagesdisadvantages 1.unsafe because of viruses 2.makes more problems than it solves space flightsspace flights a