选修八 5.2Unit 5　Listening.ppt

新课标人教版课件系列,高中英语选修(模块）8-5.2,Listening Task 1:P42The work on early people depends on the dates that are given to the bones found.If the dates are wrong,all the data about early people may also be wrong.So Zhou Heping is very interested to find out how archaeologists make sure their dates are accurate.,Listen to the tape and fill the layers in the“waterpaper basket”diagram on the right.Listen to the tape again.Pay attention to the methods archaeologists use to date bones and how those methods work,then fill in the chart below.,Yogurt pot,wasterpaper,used envelopes,Orange skin,at the top,oldest,at the bottom,carbon,disappear,fixed,the amount of,work out,Listening Task 2:P78The Terracotta Warriors are one of the greatest Chinese archaeological finds of the 20th century.Since their discovery in 1974 there has been a great deal of interest in their construction,function,and artistic value.Amanda Peters wants to find out more from her Chinese friend,the archaeologist,Zhou Lei,about how to preserve them.,Main idea:_,Why is the first problem easier to solve?A The solution is simple B Damp can be easily treated C If only occurs when it is hot D A new form of chemical protection has been invented,2.How does the terracotta army show Emperor Qin Shihuangs power?A They are all the size of a man B They are a very impressive sight.C There are copies of 8,000 different men D Archaeologists think the army is a copy of Emperor Qin Shihuangs real army.,3.What cause the Terracotta Warriors to lose their colour?A Sunlight and temperature changes B Damp and temperature changes C Damp and sunlight D All of the three,Why is it not easy to solve the problem of the forty kinds of mould?A They may need different cures B They cannot be removed C There are so many of them D They grew before the excavation,