课件8张PPT。A Lesson in a Lab period one
Introduction (P41)
Cultural Corner (P49)
田家炳中学英语组
Do you know ?Famous scientistsMatch the following1.physics
2.chemistry3.biologyAlfred Nobel
DarwinSteven Hawking
Li ZhengdaoThomas Edison
Albert Einstein
Newton
Madam Curie
Listening and choose1.(a) Water exists as a solid, a liquid and a gas.
(b) Water exists as a solid and a liquid only.
2.(a) When you heat a metal, it expands.
(b) When you heat a metal, it contracts.
3.(a) Steel is a mixture of iron and other substances.
(b) Steel is a mixture of iron and oxygen.
4.(a) Two-thirds of the earth’s surface is water.
(b) 50% of the earth’s surface is water.
5.(a) The distance of the sun from the earth is 25.500 kms..
(b) The distance of the sun from the earth is 150.500.500 kms.
6.(a) The earth is 4.6 million years old.
(b) The earth is 4.6 billion years old.
7.(a) The earth is twice as large as the moon.
(b) The earth is forty-nine times larger than the moon.Words game1.air
2.earth
3.gas
4.moon
5.surface
6.metal
7.iron
8.glass
9.sun
10.water
11.wood
12.expand
1.water 2.metal3.glass4.sun5.oxygen6.electricity7.iron8.air9.surface10.gas
11.contract
12.solidCultural Coner Read the passage with the following questions.
1. Why has Mark become more and more interested in science?
2. Do you enjoy studying science? Why or why not?Fill the formchanged, never used toschool, excellentgood, lab, latest equipmenttakes, lectures, interestingfirst-class , wonhighest, proud
becoming,want to, going,astonished, thoughtTask: work in pairs to retell the passage.A is Mark Kendon.
B is a Chinese student who studies aboard.
For example:
B: What’s your feeling about science ?
A: My feeling about science have changed .课件13张PPT。Period 2 :Vocabulary & Speaking How to say?
百
千
万
十万
百万
千万
亿
十亿hundredthousand ten thousand one hundred thousandmillion one hundred million one thousand millionbillionWork in pairWe writeWe say400,000
2,000,000
5,100,000
48,000,500
50,567,489
123,456,789
four hundred thousand two million five million one hundred thousand forty-eight million, five hundred fifty million, five hundred and sixty-seven thousand
four hundred and eighty-nine one hundred and twenty-three million
four hundred and fifty-six thousand
seven hundred and eighty-nineFind the mistakes52,470,383----- fifty-two million, four hundred and seventy,
three hundred and eighty-three 100,000,000------ hundred million365,528,462----- three hundred and sixty-five million,
five hundred and twenty-eight thousand,
four hundred and sixty-two1,000,000,000----- one thousand/ one billion52,470,383----- fifty-two million,
four hundred and seventy thousand,
three hundred and eighty-three100,000,000------ one hundred millionfraction25 %33.3%80%10%75%50%66.7%Count theseWhat is ? of 6,000,000?
How much is 35,246,000
plus 12, 800,000?
What is 25% of 200,000,000?
How much is 260,408,396 plus
5,284,700?
What is ? of 1,000,500,000?
What is 10% of 800,000,000?Which one is larger?The earth is larger than the moon.
The earth is forty-nine times larger than the moon.
The earth is forty-nine times as large as the moon. time: (n)时间
times: (n)倍数
times: (prep) 乘
5 * 2 = 10
five times two is ten.2) Winter is four times colder in Harbin than in Beijing.
Winter is four times as cold in Harbin as in Beijing.
3) Mt. Qumolangma is about six times higher than Mt. Tai.
Mt. Qumolangma is about six times as high as Mt. Tai.
4) My aunt’s house is two times larger than my house.
My aunt’s house is two times as large as my house.
5) Tom weighs over twice as heavy as Lily.
Tom is over twice heavier than Lily.Finish P91 2.1. The hot metal is getting bigger and bigger.
2. The magnesium is getting hotter and hotter.
3. The sun is getting stronger and stronger during the morning.
4. The sea is becoming warmer and warmer.可修饰比较级的词 1） a bit, a little , rather, much, far,
many, a lot, lots, a great deal,
any, still
必须放在比较级形容词或副词的前面。
Finish P91 1 & P92 3Do you know?课件18张PPT。Module 5 Reading & Vocabulary Task:
Write a scientific
experiment report.
Pre-task GW: What words can you think of when you look at the picture? science
-scientific
experiment
apparatus
equipmentBunsen burnertest tubetube holderWatch & Writemetal:
potassium钾burn
react with
( reaction )
form
(new substance)
GW: apparatuses, conclusion, reacts, experiment, pour, scientific This is a _________ _________ done in a lab.
First, get all the ____________ ready on the desk, a container(容器) with some cold water in it, some potassium(钾) and a spoon.
Secondly, ________ some potassium into the water. Then a strong light will be seen, and it lasts for a while.
We can reach a __________ that potassium _____ with cold water.
scientific experimentapparatusespourconclusionreactsTask-cycle Passage AWhat
&
WhyGW: Match names of metals to picturespotassiumsodiumcalciummagnesiumaluminiumzincironcopperFirst-reading Qs:
What should we know when we use metals?
Which metal reacts most with water, potassium or iron?It is important to know how they react with
different substances. Potassium reacts most with water.Choose the best title for the passage.
The Different Uses of Metals
The Reaction of Metals
The Reaction of Metals with Oxygen
Interview(3 reporters & scientists) Qs ( more interesting Qs are welcome)
Which metals reacts the most with oxygen and water?
What happens when you heat calcium in oxygen?
Which meals reacts with steam?
Does iron have a slow or fast reaction with steam?
Does copper react with water?
Potassium.It burns to form an oxide.Magnesium,
aluminium,zincSlow.No, it doesn’t.Passage B Task: Write an experiment reportCan we put iron nails in wet air?rustconclusion, method, result, aim, apparatus An Experiment Report
1. __________:
2. __________:
3. __________:
(1)
(2)
(3)
4. __________:
5. __________:AimApparatusMethodResultConclusionScanningRight or wrong.
Iron rusts easily in dry air.
To make sure there’s no air in the water, you have to boil the water for 3 minutes.
We don’t know whether iron rusts in ordinary water.FTFDetailed-reading1. Fill in the form on P45.
2. Jigsaw reading & Fill & ActTo find out if...Iron nails, test tubes, oil, tube holders,
cotton wool, Bunsen burner(3) half-fill...with, add, leave...forAfter a week, rust( not ) rust in(1) put...at the bottom of; push...down
leave...for(2) half-fill...with..., boil, put, add...to,
keep...out of, leave...forJigsaw reading & Fill & ActComplete the sentences using what we learntIn the first part of the experiment, the ____ is dry. It shows that iron ___________ in dry air.
In the second part, you must _____ the water to ______ _______ that there is no air in it. ______ some oil to the water can ______ the air out of it. It shows that _____ don’t rust in ____________ water.
In the third part, _______ the tube with water. It shows that they rust in _________ water.airdoesn’t rustboilmake sureAddingkeepnailsair-freehalf-fillordinaryCan you write a simple experiment report according to what you watch? Discuss, then write it down. to find out if potassium reacts with cold water.a container, cold water, a spoon,
potassiumHalf-fill the container with cold water.(2) Pour a spoonful of potassium into
the water.
The potassium burns.Potassium reacts with cold water.DiscussionDo you like doing scientific experiments?
What should you pay attention to when you are carrying out an experiment in a lab?HW: Write a report
