(
课件网) Unit 3 The world of science Writing & Presenting ideas Learning objectives 1. To read the instructions for the experiment and do it by yourself, write an experiment report. 2. To choose a day-to-day used object and predict its changes in 50 years. Writing an experiment report 1 What do you think the results of this experiment will be 2 What can you learn from this experiment Read the instructions for the experiment and answer the questions. 5 Magic bottle Materials A boiled egg A glass bottle (bottleneck a bit smaller than the egg) Hot water Read the instructions for the experiment and answer the questions. 5 Procedure Remove the shell of the egg. 2. Carefully pour some hot water into the bottle. the correct or usual way of doing sth. 步骤，程序 Read the instructions for the experiment and answer the questions. 5 3. Shake the bottle gently. 4. Pour out the hot water. 5. Quickly put the egg on top of the bottle. Read the instructions for the experiment and answer the questions. 5 Results Note: Do the experiment under the instructions of a teacher. Read the instructions for the experiment and answer the questions. 5 Read the instructions for the experiment and answer the questions. 5 1. What do you think the results of this experiment will be 2. What can you learn from this experiment The egg will squeeze into the bottle. The experiment shows us the effects of air pressure. Air pressure indeed exists, and it is very powerful. Introduce the aim of the experiment. This experiment is designed to _____ show that air pressure indeed exists and it is very powerful. Complete the boxes with the information in Activity 5. Do further research if necessary. 6 Complete the boxes with the information in Activity 5. Do further research if necessary. 6 Describe the materials used in the experiment and explain the procedure. I prepared_____ to do this experiment. Procedure : _____ a boiled egg, a bottle, some hot water First, remove the shell of the egg. Then, carefully pour some hot water into the bottle and shake the bottle gently. At last, pour out the water and put the egg on the top of the bottle. Complete the boxes with the information in Activity 5. Do further research if necessary. 6 Report the results and what you have learnt. After the experiment, I can draw the conclusion that _____ _____. Now write a report of the experiment. the air pressure exists, and it is the force of the air that pushed the egg into the bottle 1. 审题定调： 实验报告属于说明文体裁，其最大特点就是知识性、严谨性和科学性。它是对客观事实的阐述，措辞应真实严谨，准确恰当。 2. 确定主体内容： 实验报告需要客观地介绍实验的整个过程。可以按照实验目的———实验器具———实验方法———实验结果———得出结论的顺序依次进行说明。介绍实验步骤时，可适当使用表示顺序的词汇，使叙述条理、清楚。 How to write an experiment report 3. 确定人称、时态： 描述实验时，时态用一般现在时，人称用第三人称单数。 4. 核定表达： ★实验目的：in order to find ... ...
