外研版高中英語必修三《The world of science》PPT教學課件(第2課時)，共21頁。
Learning objectives
To read the instructions for the experiment
To learn to analyse the structure of an experiment instruction
To learn to write a report of the experiment
Procedure
the correct or usual way of doing sth. 步驟，程序
Remove the shell of the egg.
Carefully pour some hot water into the bottle.
Shake the bottle gently
Pour out the hot water
Quickly put the egg on top of the bottle
寫作指導
How to write an experiment report?
1. 審題定調：
實驗報告屬于說明文體裁，其最大特點就是知識性、嚴謹性和科學性。它是對客觀事實的闡述，措辭應真實嚴謹，準確恰當。
2. 確定主體內容：
實驗報告需要客觀地介紹實驗的整個過程。可以按照實驗目的——實驗器具——實驗方法——實驗結果——得出結論的順序依次進行說明。介紹實驗步驟時，可適當使用表示順序的詞匯，使敘述條理、清楚。
3. 確定人稱、時態：
描述實驗時，時態用一般現在時，人稱用第三人稱單數。
4. 核定表達：
實驗目的：in order to find ...; The aim of the experiment is to find ...; with the purpose of discovering ...; do research on ...
實驗器具：beaker; Bunsen burner; crucible; glass rod (玻璃棒); iron nail; test tube; tong; balance; ...
Homework
Write a report of an experiment that you’ve learned in your chemistry or physics class. If necessary, you can turn to the Internet for help.
If you can’t think out an experiment, here is a very simple one for you to refer to:
哪個瓶子滾得快？
兩個完全相同的玻璃瓶，一個裝滿沙，另一個裝滿水，放在同一斜面上滑下，哪個瓶子滾得比較快？動手試試，想想看，為什么？
... ... ...
關鍵詞：The world of science PPT課件免費下載，.PPTX格式；
