1 . According to the report s_________ by researchers, about 23 percent of all annual carbon dioxide emissions are caused by the destruction of tropical forests. (根据首字母单词拼写)

2 . Write a story ________ given pictures.
基于所给的图片，写一个故事。

3 . 我们在新建的实验室上化学课。(用分词作定语翻译此句)

4 . In some cases, local produce might have used more energy and produced more greenhouse gases than produce ____(种植的) a long way away, even____ ____ ____ （考虑在内） its transport. (根据汉语提示完成句子)

5 . The headmaster decided to put ________ glass on top of the wall to prevent the boys ________ over it .

A．breaking ; climbing	B．broken ;   climbing
C．broken ; to climb	D．breaking ; to   climb