单词拼写, 用词的正确形式填空（共10小题每小题1分，共10分）
小题1:The most popular place for tourists is the Eiffel Tower, the famous ______ (象征) of Paris.
小题2:Have you ever _______________ (经历) a flood?
小题3:They can ___________ (毁掉) houses, but leave the furniture inside exactly where it was.
小题4:It was the most frightening and the most ___________ (危险的) situation I’ve ever been in.
小题5:___________(古代的)China was a place where states were often at war each other.
小题6:No one knows for sure, and making ____________(预测)is a risky business.#
小题7:Trains are fast and _____________(方便的)，but rush hours can be terrible..
小题8:As a result of Yuan Longping’s discoveries Chinese rice ____________(产量) rose by 5 percent in the 1990’s..
小题9:Mencious was a __________(思想家) whose teachings were very similar to that of Confucius.
小题10:The gorge _________(变狭窄)to 350 feet as the river rushes through the two-mile-high mountains.