高中英语 Unit4Exploring plants-Writing课件 新人教选修9 课件VIP免费

Experiment reports Look at the pictures in Exercise 1 and guess the answers to the questions: What materials are being used in this experiment? What do you think the purpose of the experiment is? What order do you think the pictures should go in?Listening on P79 Number the pictures in the order you hear about them.23154 Listen to the first part again and answer the questions.1. What is the purpose of the experiment? To find out three important conditions that seeds need in order to start growing. 2. Are students going to do the experiment in groups or individually? In groups.3. Where are the materials that the students need to set up the experiment? On the bench. 4. What materials do the students need to set up the experiment? Four dishes and four pieces of cloth, a dish of seeds, some tap water, some boiled water and some cooking oil. Third listening Listen to the first part again and complete the table of conditions that each dish of seeds was given. ConditionsDish ADish BDish CDish Dtap water, warm temperature, oxygentap water, cold temperature, oxygenno water, warm temperature, oxygenboiled water, oil, warm temperature, no oxygen Fourth listeningNow listen to the second part of the tape in which the class discusses the results of the experiment. Complete the table of results. Did the seeds grow?Reasons why or why notDish ADish BYesBecause they had water, warmth and oxygen.NoBecause it was toocold. Did the seeds grow?Reasons why or why notDish CDish DNoNoBecause they were watered with boiled water which has no oxygen. Also, they were covered with oil which prevented oxygen getting to the seeds.Because they didn’t get any water. Listen to the second part of the tape again and dis...