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Tree Rings,蔡君睿,New wordsTree ring n.树的年轮Climate n.气候Rainfall n.降雨量Growth n.成长,Everyday EnglishLets cross the bridge when we come to it.船到桥头自然直。,Do you know what is it?,Tree Rings.,Tree rings can tell us what the weather was like,sometimes even hundreds of years ago.,Question 1:What can tree rings tell us?,The weather was like many years ago.,Question 2:What is the weather like if the tree grow well?,There is lots of sunshine and rainfall.,Question 3:What do you think of the tree rings?,Thank you,
