Unit 4Green worlds.Brief Statements Based on the UnitThere are a variety of plants.How should we classify them scientifically?Who is the first to do this?We can find the answers in Unit 4.The unit begins with talking about four different kinds of flowerstulip,rose,sunflower and peony.The students are asked to give the names and tell the places they come from as well as what they are used for,etc.In Speaking Part,the students are given different topics to talk about.First they are asked to describe how to plant soybeans.Five pictures are given to show the whole process of growing soybeans.Even though you havent done this by yourself,youll have some ideas.As long as youve heard of such things as this,you can describe it without much difficulty.Then they are asked to talk about how to plant vegetables on condition that you have a small garden.If you cant do this successfully,you can choose a much easier topicdescribe the process of planting and growth of any plant which you are familiar with.In a happy and relaxed atmosphere,the students ability to speak English is improved.Listening asks the students to listen to a material about fruit and how to group different kinds of fruit.Besides,the material gives the reason why we eat fruit.The story about Captain Cook and his soldiers is also interesting and instructive.The teacher should ask the students to listen carefully so as to improve their listening ability.The author of the text describes three world famous scientistsCarl Linnaeus,Daniel Solander and Joseph Banks.They gave birth to a sciencebotany,or rather,Carl Linnaeus gave birth to it and the other two enriched it greatly.After they go through the whole article,the students will have improved their reading ability.At the same time,theyll be struck by the scientists spirit of devotion as well as learn more about the sciencebotany.In order to help the students to learn and master the useful words and expressions,exercises of different forms are designed in Word Study.The students can use these words and expressions in different situations.In Grammar,the students will review the Object.A lot of examples are given to let the students see their usageswhat can be used as the object,a useful sentence pattern:have something done,and direct and indirect object.The students will know the grammar item further after they have done all the exercises.In Reading,Intergrating Skills,another three scientists Charles Darwin,Gregor Mendel and Gote Turesson and their great scientific achievements are shown to the students.After learning the passage,the students will learn the same as they did from the text before.Writing is designed perfectly.In general,writing is hard to most students,expecially English writing.However,when doing the part,the students will perhaps feel different,as detailed information is given to them.How to apply the different information when they are writing is an ability we should pay attention to.If this can be done successfully,the students writing ability will be further improved.Teaching Goals1.Talk about botany.2.Speak about procedures.3.Review the Object.4.Write a description of plants.Background InformationThe Scientific AttitudeWhat is the nature of the scientific attitude,the attitude of the man or woman who studies and applied physics,biology,chemistry,geology,engineering,medicine or any other science?We all know that science plays an important role in the societies in which we live.Many people believe,however,that our progress depends on two different aspects of science.The first of these is the application of the machines,products and systems of applied knowledge that scientists and technologists develop.Usually aided by technology,science improves the structure of society and helps man to gain increasing control over his environment.New fibers and drugs,faster and safer means of transportation,new systems of applied knowledge are some examples of this aspect of science.The second aspect is the application by all members of society,from the government official to the ordinary citizen,of the special methods of thought and action that scientists use in their work.What are these special methods of thinking and acting?First of all,it seems that a successful scientist is full of curiosityhe wants to find out how and why the universe works.He usually directs his attention towards problems which he notices have no satisfactory explanation,and his curiosity makes him look for underlying relationships even if the data available seem to be unconnected.Moreover,he thinks he can improve the existing conditions,whether of pure or applied knowledge,and enjoys trying to solve the problems which this involves.He is a good observer,accurate,patient and objective and applies persistent and logical thought to the observations he makes.He utilizes the facts he observes to the fullest extent.For example,trained observers obtain a very large amount