47．The underlined word “levee” in Paragraph 5 probably means ________.

　　A．island

　　B．dam

　　C．town

　　D．farmland

　　答案　B　[词义猜测题。从下文的泄洪造成了大面积农田被淹可知，美国陆军工兵实施爆破的对象是堤坝，故选B项。]

　　D

　　Shetland Sheepdog

　　The Shetland Sheepdog is a beautiful dog with a long head.It has long hair and a soft undercoat.This kind of dog is similar to a Rough Collie(可丽牧羊犬)in size and appearance.

　　Temperament(性情)

　　The Shetland Sheepdog is a clever friend with a good temperament in nature.These dogs are so smart that many people consider them to have almost human intelligence.

　　Living Conditions

　　They are very lively indoors and will do okay without a yard.

　　Exercise and Activities

　　They need a lot of exercise and prefer to run about freely.

　　Papillon

　　The Papillon is a little dog who is very smart.They are sometimes called butterfly dogs because their ears look like butterfly wings.

　　Temperament

　　They need to be trained not to bark(吠叫)．They love human beings and want to take part in activities as much as possible.

　　Living Conditions

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