高中英语外研版 (2019)必修 第三册Unit 3 The world of science教学课件ppt

这是一份高中英语外研版 (2019)必修 第三册Unit 3 The world of science教学课件ppt，共22页。
Learning Objectives
Gain a deeper understanding f the develpment f science and technlgy, and express the verall impact f technlgical develpment n human sciety;
Cnduct self-reflectin,adjust learning strategies and imprve learning efficiency.
Use the language knwledge learned in this unit t describe the changes that technlgy has brught t life,and predict what changes will happen in life in the next 50 years;
Guide students t apply the cntent learned in this unit, describe the changes brught by technlgy t human life, and apprpriately express their pinins;
Guide students t make reasnable evaluatins f their learning behaviur and effectiveness frm aspects such as language ability and thinking quality.
Teaching Fcuses and Anticipated Difficulties
Read the instructins fr the experiment and answer the questins. (P35)
1. What d yu think the results f this experiment will be?2. What can yu learn frm this experiment?
1.What d yu think the results f this experiment will be?
The egg will squeeze int the bttle.
2. What can yu learn frm this experiment?
The experiment shws us the effects f air pressure. Air pressure indeed exists, and it is very pwerful.
Check the answers
Watch Egg in a Bttle Experiment
2 Cmplete the bxes with the infrmatin in Activity 1. D further research if necessary.
Writing an experiment reprt
Intrductin Intrduce the aim f the experiment.
This experiment is designed t . . .
prve whether air pressure really exists.
Main bdy Describe the materials used in the experiment and explain the prcedure.
I prepared . t d this experiment.
the materials, including a biled egg, a glass bttle whse neck is a bit smaller than the egg and sme ht water
Prcedure . . . . . .
First, I remved the shell f the egg. Then I carefully pured smeht water int the bttle, and shk the bttle gently. After a few minutes, I pured ut the ht water. Just at the same time, I quickly put the egg n the tp f the bttle. T my amazement, the egg squeezed int the bttle at nce.
Cnclusin Reprt the results and what yu have learnt.
After the experiment, I can draw the cnclusin that . . . . .
air pressure indeed exists, and it is very pwerful. It was the frce f the air pushed the egg int the bttle.
3 Nw wtrite a reprt f the experiment and then share the reprt with the class.
This experiment is designed t...
Presenting ideas
1 Wrk in grups. Lk at the pictures and discuss hw these bjects have changed ver the years.
Watch the vide and see hw the telephne has changed ver the years.
2 Chse ne f the bjects in Activity 1 r an bject that yu use every day. Predict hw it will further change ver the next 50 years. Make ntes abut yur ideas.
My bject: .Hw it will change: .Why it will change: .
3 Present yur ideas t the class. Use the ntes t help yu.
Radis will gradually be withdrawn frm ur life ver the next 50 years because they will be replaced by mbile phnes r ther divices.Crded telephnes will disappear due t the ppularity f mbile phnes.Cmputers will becme smaller and lighter and can be used n the palm f the hand because f the develpment f technlgy.
After cmpleting this unit, I can rate my perfrmance 1 (excellent), 2 (gd) r 3 (in need f imprvement).
□talk abut careers in science□tell the stry behind an inventin□write an experiment reprt□think critically abut what I’ve read and heard□cultivate a spirit f innvatin
I’ve learnt t make use f the fllwing wrds and expressins:_________________________________________________________________________________________________________________________________________________________
I still need t imprve:___________________________________________________________________________________________________________________________________________________
Write a reprt f an experiment that yu’ve learned in yur chemistry r physics class. If necessary, yu can turn t the Internet fr help.