gravity

Relativity

Evolution

in a chemistry lab

doing an experiment

an English-Chinese dictionary, an English book and a notebook

in a physics labdoing an experiment

in a biology lab

looking at something through a microscope

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

chemistry

science of elements and their laws of combination and change

element

substance

gas, liquid, solid

chemical change

chemistry experiments

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

physics

science of matter and energy and of interactions between the two

matter

power

energy

physical change

physics experiment

biology

science of life and of living organisms animal plant living things gene cell protein biology experiment

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

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

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.

invention advantages disadvantages

Maglev train

It is fast,clean and it doesn’t make any noise.

It is a waste of money.

Scientific applications

Advantages Disadvantages

Cloning

Nuclear energy

Computers

Space flights

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

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