外研版（2019）必修第三册Unit3 The world of science-Writing课件28张PPT

(共28张PPT)
Developing ideas — writing
Unit 3 The world of Science
【版本：外研　册别：必修三】
contents
Pre-writing
Language points
IV
While-writing
II
Homework
V
Post-writing
III
I
I
Pre-writing
Read the instructions for the experiment and answer the questions. (P35)
1. What do you think the results of this experiment will be
2. What can you learn from this experiment
1.What do you think the results of this experiment
will be
The egg will squeeze into the bottle.
2. What can you learn from this experiment
The experiment shows us the effects of air pressure.
Air pressure indeed exists, and it is very powerful.
Check the answers
Watch Egg in a Bottle Experiment
II
While-writing
Writing an experiment report
Complete the boxes with the information in Activity 5. Do further research if necessary.(P35)
_____________________________________
Key
prove whether air pressure really exists
Key
a boiled egg, a glass bottle whose neck is a bit smaller than the egg, and some hot water
First, I removed the shell of the egg. Then, I carefully poured some hot water into the bottle, and shook the bottle gently. After a few minutes, I poured out the hot water. Just at the same time, I quickly placed the egg on top of the bottle
_____________________________________
Key
air pressure indeed exists, and it is very powerful. It is the force of the air that pushed the egg into the bottle
Summary: Writing an experiment report
Three parts
Introduction: Introduce the aim of the experiment.
Main body: Describe the materials used in the experiment and explain the procedures.
Conclusion: Report the results and what you have learnt.
The experiment is designed / aimed to...
I prepared..., including...
First..., then..., after...
After the experiment, I can draw a conclusion that...
Useful expressions
Summary: Writing an experiment report
III
Post-writing
Exchange drafts
Use the checklist to give feedback on your partner’s draft.
□ Does the report include the key points
□ Is the report organized according to the layout
offered
□ How is the language
□ How is the handwriting
□ How is the paper design
Revise your draft!
Share your report!
The experiment is designed to prove whether air pressure really exists.
At the beginning of the experiment, I prepared the materials, including a boiled egg, a glass bottle whose neck is a bit smaller than the egg, and some hot water. With all the things prepared, the experiment began.
目的是
水煮鸡蛋
（物体的）颈部
Reference Text
First, I removed the shell of the egg. Then, I carefully poured some hot water into the bottle, and shook the bottle gently. After a few minutes, I poured out the hot water. Just at the same time, I quickly placed the egg on top of the bottle. To my amazement, the egg squeezed into the bottle at once.
倾倒，倒出
轻轻地
倒出
放置，安放
挤入
Reference Text
After the experiment I can draw the conclusion that air pressure indeed exists, and it is very powerful. It is the force of the air that pushed the egg into the bottle.
结论；推论
存在
强有力的
力量
Reference Text
IV
Language points
Important sentences
1. The experiment is designed to prove whether air
pressure really exists.
whether 从句在动词prove 后作宾语，即宾语从句，意为“是否”。
I asked him whether he had done it all by himself.
2. I prepared the materials, including a boiled egg, a
glass bottle whose neck is a bit smaller than the egg,
and some hot water.
including 在句子中为动词的现在分词充当状语。
Six people were killed in the conflict, including a policeman.
whose在句子中引导定语从句，修饰先行词bottle。
Important sentences
3. With all the things prepared, the experiment began.
1. with的复合结构：with + 宾语 + 宾语补足语
即with + 名词 / 代词 + 非谓语动词 / 介词短语 / 副
词 /形容词 / 名词。
2. 句中all the things 和prepare 之间为动宾关系，所
以用prepare的过去分词表示被动。
Important sentences
4. It is the force of the air that pushed the egg into the
bottle.
本句为强调句型：
it is / was+ 被强调部分 + that / who + 句子剩余部分
Important sentences
It was with your generous help that I could pass the exam.
V
Homework
Do an experiment following the teacher’s direction, and write a report about the experiment.
Thanks