gravity relativity evolution in a chemistry lab doing an experiment
TRANSCRIPT
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gravity
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Relativity
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Evolution
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in a chemistry lab
doing an experiment
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an English-Chinese dictionary, an English book and a notebook
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in a physics labdoing an experiment
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in a biology lab
looking at something through a microscope
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Warming up
1. Look at the textbook P22 and describe what can
be seen in each picture. What is it about?
2. What English words do you think of for each
subject of science?
science
physics chemistry biology
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chemistry
science of elements and their laws of combination and change
element
substance
gas, liquid, solid
chemical change
chemistry experiments
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language the system of sounds and words used by
humans to express their thoughts and feelings
sounds, words, phrases, sentences
grammar
communicate communication
native/mother language
foreign language
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physics
science of matter and energy and of interactions between the two
matter
power
energy
physical change
physics experiment
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biology
science of life and of living organisms animal plant living things gene cell protein biology experiment
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Listening
1.Listen to the tape. Tick the things that Mrs Zhu talks about.
( ) safety in the lab ( ) gloves
( ) gases ( ) experiments
( ) long hair ( ) liquids
( ) car accidents ( ) shoes
( ) flames
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1. Safety comes first!2. Follow the teacher’s instructions.
3. Bottles may contain dangerous gases.4. Immediately wash your eyes with a lot of water.5. 1) Clear everything away and leave the classroom neat and clean. 2) Wash your hands with water and soap. 3) Turn off the lights and shut the windows.
Listening P22
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Useful expressions on P 23
be to do sth: should /must do, plan to do a maglev train in one’s opinion (a) waste of money much too / too much in the future mean to do sth./ mean doing sth. make (good/full) use of The money would be better spent building more roads or railways in other parts of China.
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invention advantages disadvantages
Maglev train
It is fast,clean and it doesn’t make any noise.
It is a waste of money.
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Scientific applications
Advantages Disadvantages
Cloning
Nuclear energy
Computers
Space flights
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Cloning1.can help some women have babies2.can help medical research1.it is not natural to make people2.dangerous, people use it to do strange thingsNuclear energy1.can make all the electricity we need2.is a limitless resource1.unsafe to all life if not controlled2.can be expensive to build/repair
Speaking on P23
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Computers1.makes communication faster2.can keep information better1.unsafe because of viruses2.makes more problems than it solves
Space flights1.makes research of outer space possible2.put communication satellites in space1.expensive and dangerous 2.used by the army