Unit 4  Green World教案

t: anything else?
s: modern australia is made up of six states and two territories. the first australians were the aborigines and torres strait islanders. the two world wars had a strong influence on australia. the official language is english, which are quite different from british and american english.

step ii warming up
t: good. you really did a great job. do you know what is the national flower of australia?
s: golden wattle (acacia pycnantha)（金合歡，又稱相思樹）.
show the picture to students.
 
t: very good. as shown in the picture, the species is certainly attractive with its showy, large, bright golden flower heads. now look at the pictures on page 28 in our textbooks. these are four flowers commonly seen in our daily life. first, match each flower with its correct name, please.
t: there seems no difficulty for you to do this, right? ok, the answer is…
s: ①-rose; ②-tulip; ③-peony; ④-sunflower
t: well done. susan, what is your favorite? why?
s: i love sunflower best of all. there are, i think, three reasons,: first, i love eating the seeds of sunflowers, they are delicious; second, their stems can be used to build fences by farmers; third, sunflower oil is very popular in daily life.
t: great. lily, can you tell us something about the other three flowers?
s: ok. tulips are native to central and western asia, and parts of the middle east, roughly in the region near afghanistan. tulips are mainly used for decoration. tree peony, the chinese national flower, native to china, is called as the "king of flowers", which is widely used in chinese medicine. rose is native to southwest asia, and it is often used as present with the meaning of “l(fā)ove”. also, rose flower is a kind of important chinese medicine.
t: good. as we all know, flowers are only one of the most important parts of plants. plants are very important to human beings. they provide us food, medicine, decoration, etc. without them, our world would be dull, lifeless… and growing plants can be both fun and a useful experience. do you have such experiences? do you know how to grow certain plants? and how to take care of them? the pictures on page 29 is an example of planting soybeans. now everyone, look at the pictures first, then try to explain the stages of growing soybean and how to take of them by describing each picture, you may write down your ideas on the paper.
move around the class and check their work. offer language help if needed.

step iii  speaking about procedures
t: kate, would you like to show us your ideas?