问题 综合

下图为“美国和中国东北地区农业分布示意图”。读图回答问题。(22分)

(1)中国东北部和美国东北部地区农业结构的共同之处是                                 (2分)

两个地区从农业地域类型看:

相同点都有                  (2分)

不同之处是                                 (2分)  

(2)影响两地区小麦种植有利自然条件有哪些?(6分)

(3)我国东北地区种植水稻主要的不利因素是                                            (2分)

(4)下表为美国和我国东北玉米带的比较:

从表中可以看出,美国玉米带单产高于我国玉米带,结合表中信息和所学知识分析其成因

从自然条件看:

                                                                        

                         (6分)

从社会经济条件看:

                                                               (2分)

答案

(1)都有大面积的小麦和玉米种植(2分) 商品谷物农业(2分) 美国有乳畜业,我国东北地区有季风水田农业(2分)

(2)夏季温暖多雨,地势平坦,均为黑土分布区,土壤肥沃,水源充足(6分)

(3)热量不足,水源不足(2分)

(4)美国玉米带纬度位置比我国玉米带稍低,无霜期长,热量条件优于我国东北地区;降水略多;美国玉米带土壤有机质含量高于我国东北地区,(6分) 美国农业科技水平高于我国(2分)

题目分析:

(1)中国东北部和美国东北部地区农业结构的共同之处是都有大面积的小麦和玉米种植。从农业地域类型看,都是 商品谷物农业。但是美国东北部有乳畜业,我国东北地区有季风水田农业。

(2)两地农业生产的有利的自然条件都是夏季温暖多雨,地势平坦,均为黑土分布区,土壤肥沃,水源充足。

(3)我国东北地区纬度高,降水较少,发展水稻种植业的不利条件是热量不足,水源不足。

(4)从自然条件分析,表格中数据显示,美国玉米带纬度位置比我国玉米带稍低,无霜期长,热量条件优于我国东北地区。美国降水量略多,美国玉米带土壤有机质含量高于我国东北地区。 从社会经济因素分析,美国玉米单产高,因为美国的农业科技水平高于我国。

选择题
阅读理解

Popeye the Sailor first became a popular cartoon in the 1930s. the sailor in that cartoon ate lots of spinach to make him strong. People watched him, and they began to buy and eat a lot more spinach. Popeye helped sell 33 percent more spinach than before! Spinach became a necessary part of many people’s diets. Even some children who hated the taste began to eat the vegetable.

Many people thought that the iron in spinach made Popeye strong, but this is not true. Spinach does not have any more iron than any other green vegetable.

People only thought spinach had a lot of iron because the people who studied the food made a mistake. In the 1890s, a group of people studied what was inside vegetables. This group said that spinach had ten times more iron than it did. The group wrote the number wrong, and everyone accepted it.

Today, we know that the little iron in spinach cannot make a difference in how strong a person is. However, spinach does have something else which the body needs—folic acid.

It is interesting to point out that folic acid can help make a person strong. Maybe it was really the folic acid that made Popeye strong all along.

小题1:A good title for this reading passage is______.

A.Popeye the Sailor

B.The Truth About Spinach

C.A Mistake with Numbers

D.Folic Acid Makes You Strong小题2:Why did many people eat spinach after they saw Popeye the Sailor?

A.People liked folic acid.

B.They thought Popeye was funny.

C.Spinach had a lot of iron.

D.They thought spinach made them strong.小题3:A research group told people that spinach______.

A.made Popeye strong

B.was a green vegetable

C.had less iron than other green vegetables

D.had more iron than other green vegetables小题4:The reading passage says that perhaps Popeye got his strength from______.

A.iron

B.spinach

C.folic acid

D.exercise