21. Who is this passage mainly intended for?

　　A. School students.

　　B. Bird lovers.

　　C. Driving learners.

　　D. Trouble makers.

　　22. Where can you enjoy riding on logs?

　　A. At Weirs Beach.

　　B. In your lakeside cottage.

　　C. At Coney’s Flume Park.

　　D. At Dry River Campground.

　　23. What type of writing is this text?

　　A. A tour introduction.

　　B. A travel diary.

　　C. An announcement.

　　D. An official report.

　　B

　　As temperatures go up, bison（北美野牛）get smaller. Joseph Craine, research assistant professor in the Division of Biology at Kansas State University, examined how climate change during the next 50 years will affect grazing（放牧）animals such as bison and cattle in the Great Plains.

　　“Bison are one of our most important conservation animals and hold a unique role in grasslands in North America,” Craine said.

　　“In addition to their cultural and ecological significance, they’re economically important.

　　There are about half a million bison in the world.” Craine analyzed a data set of 290,000 weights, ages and sexes collected from 22 bison herds（兽群）throughout the U. S. The organizations kept annual records of each animal in the herd and matched the data with the climates of the sites.

【河南省洛阳市2015届高三上学期期中考试英语试卷】相关文章：

★ 安徽省宣城市八校2015届高三上学期联考英语试卷（扫描版）

★ 2015届高考英语一轮专项复习训练 8

★ 浙江省温州市第六十一中学2015届高三上学期期中考试英语试卷

★ 河南省濮阳县第一中学2015届高三上学期期中考试英语试卷

★ 2015届高考英语一轮专项复习训练 32

★ 江苏省东台市三仓中学2015届高三12月月考英语试卷

★ 2015届高考英语一轮专项复习训练 10

★ 2015届高考英语一轮专项复习训练 28

★ 天津市宝坻区四校2014-2015学年高一11月联考英语试卷（含听力）

★ 浙江省湖州中学2015届高三上学期期中考试英语试卷