Module 4　Great Scientists

　　Brief Statements Based on This Module

　　The Analysis of Teaching Contents in This Module

　　Introduction

　　In this part,we will lead in the topic by talking about some scientists.The teacher can show the students some pictures of scientists on the screen,such as Albert Einstein,Archimedes,Marie Curie,Qian Xuesen.Make sure the students know them and encourage them to say as many things about them as they can.That's the lead-in and also Activity 1 in the introduction.In Activity 2,we'll learn some words related to science.In this part,let the students match the subjects with their definitions.Pair work can be involved in Activity 3.Ask the students to work in pairs and write some facts about a famous scientist.(The teacher had better ask the students to collect some information by surfing the Internet or reading some magazine ahead of time.)

　　Vocabulary and Reading

　　The passage mainly tells us the story of Yuan Longping-the father of hybrid rice.The teacher may ask the students to read the text fast to get the main idea of each paragraph.Then do some careful reading to make sure the students understand the passage better.At the same time,we'll deal with some exercises including some word study.The teacher may show them on the screen,such as staple,yield,sterile,hybrid,etc.By guessing from the whole context they will have a good sense of enlarging their vocabulary and this is very important in learning a language.While reading this passage,some reading strategies are necessary:skimming-fast reading to find out the general idea of the passage as well as the answers to one or two questions;scanning-careful reading to look for important facts;guessing-try to guess new words from the context,understand the author's attitude and ideas from the context and understand the intention.

　　In the teaching of reading,the teacher can organize different reading activities according to the content of the text on purpose to train the above reading strategies and help them develop good reading habits from the very beginning.

　　Function

　　Function in this module is talking about numbers,which include big numbers,fractions and percentages.The students can finish Activities 1 and 2 individually and check the answers with the whole class.As for activity 3,pair work or group work is better.Let the students dictate some numbers to their partners to consolidate what they learned.After that,the teacher can give them a quiz to make sure the students can distinguish different numbers correctly and can read and write them in the correct way.

　　Grammar 1

　　In grammar 1,we'll revise the passive voice of present tense,past tense,future tense and present perfect tense.There are four activities for the students to practice.Through Activity 1,the teacher will know if the students can tell passive voice from active voice and if they can distinguish the sentence tense.In class,the teacher should give the students more chances to speak English.

　　Listening

Activity 1 is an oral job.The teacher may give the students one minute to have a quick look at the picture on Page 36 and then describe what is happening.The teacher can ask two or three