Unit 4 单元测试.doc

with “ climate refugees ” looking for somewhere to live. A. The main cause of global warming is human pollution B. Should e true C. Without urgent help, the country ’s days are numbered. D. But Tuvalu isnot the first place to face sinking into the sea E. The sea level could rise byone meter this century F. people face a lotof pollution G. much has been done about our IV 短文改错: Last night when Steven and I was having a walk in the street, we suddenly heard a painful cry for help under a tree nearby. We quickly ran to the tree and found a boy laying on the ground with a stick in his leg. He had fallen of the tree. Steven suggested we pulled the stick out at once, but I disagreed, Because I had learned little about first aid at