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1、Module 5 A Lesson in a LabThe Fourth Period Extensive ReadingTeaching goals 教学目标1. Target language 目标语言a. 重点词汇和短语used to, in the area of, be proud of, be supposed to, facility, crucible, balance, tongs, react, stage, mixture, set upb. 重点句式The hotter the mixture, the quicker the reaction. P94Continue
2、 to heat the mixture until the water evaporates, leaving the salt in the crucible. P94Using tongs to hold the test tube, he heated it over the Bunsen burner. P94Thats when things started to go wrong. P94. as the lecturers are people who have made real discoveries in their area of science. P49Im beco
3、ming more and more interested in physics. P492. Ability goals 能力目标Enable the students to describe an incident in a science class.3. Learning ability goals 学能目标Help the students learn how to describe an incident.Teaching important and difficult points 教学重点和难点Help the students discuss incidents that h
4、ave happened in their science classes.Teaching methods 教学方法Discussion and pair work.Teaching aids 教具准备A computer and a projector.Teaching procedures &ways 教学过程与方式Step RevisionCheck the students homework.For these two exercises, ask the students to read out the complete sentences.T: From Exercise 4,
5、we know that we can use much, a bit, a lot, a little to modify the comparative expressions. Besides these, we have other words to do this. Now please look at the sentences on the screen. Read the sentences and pay attention to the bold face.You have far more imagination than I have.Its slightly warm
6、er today.Shes actually a good deal older than she looks.Do you feel any better today?She was no older than Zilla.You must go and get some more milk.He is fat, but his brother is still fatter.This book is even more useful than that one.My sister is ten years younger than me.Youre a head taller than J
7、ane.It was one-fourth cheaper than the market price.After the students have finished reading, ask them to make a conclusion of the words to modify the comparative degree.T: By now weve learned many words that can modify the comparative degree. What are they?S1: They are much, a lot, far, a bit, a li
8、ttle, slightly, any, no, some, even, still, a head, ten years and so on.T: Yeah, thats right. Now, thats all for the home-work. Lets come to Reading.Step Lead-inT: Do you know this man?S1: He is Ting Zhaozhong, a world-famous Chinese scientist. He once won the Nobel Physics Prize.T: Thats right. He
9、is a top-class scientist. Many outstanding scientists think it is an honor to work with him. What he often says is “I dont know”. We know science is a serious thing. You cant be too careful in it. I think this is the real spirit that a scientist and the person who aims to be a scientist should have.
10、Step Reading (P94)Task 1: Fast readingT: Now lets turn to page 94 to see what happened in the chemistry lab. First, read the three summaries about this passage on page 93. After reading the passage quickly, choose the best one.Give the students some time to read the passage.T: Which one do you think
11、 can be the best summary of the passage?S1: No. 1 is the best summary, I think.T: Good.Task 2: Careful readingThe purpose of this task is to answer the eight questions in Exercise 11, and let the students get familiar with some new words in this Module.T: Now, lets read the questions in Exercise 11,
12、 so that you can know what you should do when you are reading. Now read the passage carefully and find the answer to each question. Mark where the answers are and then number them. So that you can find them quickly when you need these answers.Let the students do the job in pairs. One asks the questi
13、ons and the other answers them. While the students are asking and answering the questions, walk around the classroom to see if they need any help. And at the same time, collect the answers.Step DiscussionT: Well, you often do some experiments in your science lessons, right? Did any incidents happen?
14、 Now Ill give you some time to discuss the incidents that have happened in your science lessons.After a while.T: Who would like to report an incident that happened before?S1: Id like to. One morning, we were doing a chemical experiment in the school lab. We fetched some solution(溶液) from the cupboar
15、d, including oil of vitriol(浓硫酸), and put them on the table. Wang Hua and Ding Ding were in the front row. Xiao Ming and I were in the second row. Suddenly, Wang Hua turned to say something to me, and turned over the bottle with oil of vitriol by accident. The bottle was not covered! The oil of vitr
16、iol splashed. Soon a hole was burned in Xiao Mings coat. And his hand was burned to black. He screamed. We were so worried. The teacher ran over to send Xiao Ming to the nearest hospital.Fortunately, nobody else was injured in the incident. However, it taught us a good lesson. Never leave a bottle uncovered on the table.S2: Id like to
