幻灯片 1Listening and Writing
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幻灯片 2
…Where do we go from here?
…Keep the noise down…
…You’ve got it…
…Go ahead…
…It is your turn…
Everyday English conversation
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幻灯片 3Numbers
Metals
Equipment
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幻灯片 4Listening
Aim: To find out if there is a zx xkchange in weight when the metal magnesium burns in air.
Can you predict the result?
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幻灯片 5Listening
Listen to the conversation and answer the questions
1.Was your prediction correct?
2.How much more/less does it weigh than before?
1.5 gram more
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幻灯片 6Aim: to find out if there is a change in weight when magnesium burns in the air.
Apparatus:
Method: First, _____the magnesium ___the crucible. Then, put the crucible on the _____ and _____it. Next, _____the
magnesium.______ the Bunsen burner . After that, _____the crucible over it. Finally, ______the magnesium again.
Result: It weighs a little _____than before.
Conclusion:
Magnesium, Bunsen burner,
a balance, a crucible
put
in
balance
weigh
heat
Light
hold
weigh
more
There is a change in weight when Mg burns in air.
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幻灯片 7B
F
A
G
C
E
D
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幻灯片 8squeeze …pour…
in a container
dip…
write…
blow…to…
light /turn on…
heat…
…appear
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幻灯片 9Writing:
Experimental Report
Aim: to write a secret message
Apparatus:
Method: First…Then…Next…After that…Finally…
Result:zx xk
Conclusion: Lemon juice can react with oxygen and produce brown oxide .
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幻灯片 10What have you learnt from this lesson?
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幻灯片 11Homework:
Preview the grammar part in this module
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幻灯片 12Numbers
555,555,555,555zx xk
3/4 is the same as_______
1/3 is the same as_______
What is 10% of 800,000,000?
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幻灯片 13Metals
K
Ca
Na
Zn
Mg
Al
Ag
Fe
Cu
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幻灯片 14Equipment
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