题干

某地理小组拟探究“水土流失的主要自然原因”,请你一起完成探究过程。

探究主题:水土流失的主要自然原因

探究过程:两个相同的杯子,两块相同的木板,足量的沙土和清水,两个喷水器,一块草皮.探究过程:选取材料,模拟实验并观察,记录结果。

(一)植被与水土流失相同时间,同等坡度,同等喷水强度,没有覆盖草皮,其杯内沙土量____(多或少)

(二)降水强度与水土流失相同时间内,同等喷水强度,同样沙土条件,喷水强度大的,杯内沙土量多。

(三)坡度与水土流失相同时间内,同等喷水强度,同样沙土条件,坡度大的,杯内沙土多。

归纳总结:

(四)影响水土流失的主要自然因素有植被________等。

验证迁移:

(五)从我国水土流失严重区分布图如右图可以看出,我国水土流失严重地区①为____(地区名称),我国水土流失严重区水土流失严重的共同原因是____(不定项选择)。

A.位于地势第三阶梯上

B.气温年较差大

C.夏季降水多且强度大

D.植被覆盖率低

拓展延伸

(六)②是我国新疆地区,不是水土流失严重区,最主要的自然原因是____;③是我国长白山地区,也不是水土流失严重区,最主要的自然原因是____

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同类题1

阅读下列短文,根据短文中的信息完成文后表格。(每空一词)
    Minoru Yamasaki was a well-known American architect (建筑师). He was born in 1912 in Seattle, Washington. Minoru went to college to study architecture. Every summer he worked in a fish factory to help pay for college. He slept in a room with 100 other men.
    Yamasaki sometimes dreamed about his work. Once he woke up at three o'clock in the morning. He remembered a building that was in his dream. He got up and started to draw.  
    Yamasaki was different from other architects. His buildings give people a feeling of peace and happiness. Many of his designs have pools of water, flowers, and windows on the roof to let in light. He wanted to give them a place away from the busy ways of modern life.
    Yamasaki worked for several companies. But his success began when he started his own company. In 1956, he won the Architect's First Honor Award for his design of an airport in St. Louis, Missouri. He won two more awards over the next five years. In 1962, he designed the World Trade Center in New York. In 1993, a bomb exploded (炸弹爆炸) in it. But the buildings did not fall down because they had a good design.
Yamasaki had strong opinions about his buildings. They had to be built his way. He refused to change the design of his buildings, even if he lost a job.
    Minoru Yamasaki died on Jun,2 1986. He designed more than 300 buildings. People will enjoy the design and beauty of his buildings for a very long time.


The title   A     ____  American architect
Be born  In   ____  in Seattle, Washington
In college  Studied  architecture  in college
Worked in a fish factory to ____  for college
  ____  a room with 100 other men
His design of buildings Made people feel  ____  and happy
Had  ____  opinions about his buildings
The World Trade Center didn't fall down after a bomb explosion
Successful  career  Was not the  ____   as other architects
Didn't begin his successful career    ____  he started his own company
Won   ____  Awards for his famous design before 1962 and designed over 300 buildings in his life
Date of  ____    Died on Jun,2  1986