46．Natural Burn was adopted because some forest fires wereA．hard to put out

　　B．started by lightning

　　C．good for the balance of nature

　　D．approved by National Park Service

　　47．The big fire in Yellowstone in 988

　　．

　　A．became out of control at first

　　B．destroyed the park completely

　　C．was allowed to burn continuously

　　D．brought the natural burn policy to an end

　　48．Why were

　　many animals killed in the big fire?

　　A．Because winds were blown from high places．

　　B．Because the animals moved only ten miles a day．

　　C．Because the animals lived in lower places．

　　D．Because strong winds contributed t the fire a lot．

　　49．Yellowstone was famous for its

　　．

　　A．rare animalsB．unique plants

　　C．beautiful sceneryD．50．The text probably comes from

　　．A．a science fiction B．a news report

　　C．a commercial adD．a geography magazine—50、CDDCD

　　【四川省2017高考英语仿真模拟试题】C

　　Some people will do just about anything to save money. And I am one of them .Take my family’s last vacation .It was my six-year-old son’s winter break form school, and we were heading home form Fort Lauderdale after a weeklong trip. The flight was overbooked, and Delta , the airline ,offered us $400 per person in credits to give up our seats and leave the next day .I had meeting in New York，So I had to get back . But that didn't mean my husband and my son couldn't stay. I took my nine-month-old and took off for home.

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