10 . 阅读下面短文，在空白处填入1个适当的单词或括号内单词的正确形式。
Hurricane Katrina has been one of the 1 (strong) storms that affect the coast of the United States during the last 100 years. Once a hurricane starts it can be moved around by powerful winds. They vary from class 1 2 class 5. Hurricane Katrina 3 (be) the worst storm in the past decade in the US, having reached class 5, which has caused lots of damage.
Some scientists claimed that global warming was 4 (blame) for the power of Hurricane Katrina due to the fact that it is warming the oceans. Hurricane Katrina had a strong effect on the US coast. The area 5 (affect) is almost the size of the UK. New Orleans suffered from severe damage after the hurricane. Most of the city was under water from flooding, 6 (include) expressways and bridges. Almost 2 million people 7 (lose) their power and had to wait several weeks for it to be restored. It was 8 disaster for the city. Help came from all over the United States. Many people went down to New Orleans 9 (volunteer). Others started charity events to fund the reconstruction of the city. It was because of all people's efforts 10 the city began to breathe again.
