1、导读 话题妙切入Unit 6 At one with natureThe first in time and the first in importance of the influences upon the mind is that of nature.Ralph Waldo Emerson在所有对头脑的影响中，大自然的影响可谓在时间上最早，在作用上最为重要。拉尔夫沃尔多艾默生We wont have a society if we destroy the environment.Maegaret Mead如果我们毁坏了环境，社会将不复存在。玛格丽特米德Only to obey natur
2、e in order to overcome nature.Charles Darwin要征服自然只能服从自然。查尔斯达尔文Nature is kind of a loving mother，but also a butcher in cold blood.Victor Hugo自然不仅是慈爱的母亲，也是冷血的屠夫。维克多雨果Nature is the mother of mankind.We get almost everything from her.We live on natural food.We make clothes from natural materials.And we
3、build our houses of stone and wood.However，with the development of human beings，man has destroyed the balance of nature.Water，air and soil have been badly polluted.Some kinds of animals and plants have died out completely.As a result，man is being punished by nature.Many people suffer a lot from all
4、kinds of diseases caused by pollution.Therefore only when we treat nature well will she look after us.The last hidden worldChinaFor centuries，travellers to China have told tales of magical landscapes and surprising creatures.Chinese civilization is the worlds oldest and today its largest with well o
5、ver a billion people.Its home to more than 50 distinct ethnic(种族的)groups and a wide range of traditional life styles often enclose partnership with nature.We know that China faces many social and environmental problems but there is great beauty here too.China is home to the worlds highest mountains，
6、vast deserts，cold area，steaming forests harboring rare creatures，grassy plains beneath vast horizons and rich tropical seas.Late winter in southern Yunnan is a busy time for local farmers as they prepare the ageold rice field ready for the coming spring.These hill slopes of Yuanyang county plunge(斜插
7、)nearly 2，000m to the floor of the Red River Valley.Each contains thousands of terraces carved out by hand using basic digging tools.Yunnans rice terraces are among the oldest human structures in China still ploughed as they always have been by cows whose ancestors originated in these very valleys.T
8、his man-made landscape is one of the most amazing engineering achievements of pre-industrial China.It seems as if every square inch of land has been pressed into cultivation.探索发现1What does this manmade landscape refer to in the last paragraph?_2.What do you know other famous manmade landscape in China?_It refers to Yunnans rice terraces.略谢谢观看 THANK YOU!