题目内容
【题目】读沿北纬36°N地形剖面图，回答下列问题．
（1）从图中看我国地势特征是 ， 呈阶梯状分布，使我国大多数河流流入海洋．
（2）世界上最大的黄土堆积区是 ． 位于我国地势的第阶梯上．
（3）我国地势二、三级阶梯的界线是大兴安岭﹣﹣巫山﹣雪峰山．
（4）该地势对气候的影响：有利于海洋上湿润气流深入西部内陆，形成 ．
【答案】
（1）西高东低；自西向东
（2）黄土高原；二
（3）太行山
（4）降水
【解析】中国地势西高东低，大致呈阶梯状分布，并且向海洋倾斜，有利于海洋湿润气流深入内地，形成降水．这种地势，使许多大河滚滚东流，沟通了东西交通，加强了沿海与内地的联系；还使许多河流在从高一级阶梯流入低一级阶梯的地段，水流湍急，产生巨大的水能．读图分析可知：（1）从图中看我国地势特征是西高东低，呈阶梯状分布，这种地势，使许多大河滚滚东流，沟通了东西交通，加强了沿海与内地的联系．（2）世界上最大的黄土堆积区是黄土高原，位于我国地势的第二阶梯上．（3）我国地势二、三级阶梯的界线是大兴安岭﹣太行山﹣巫山﹣雪峰山．（4）该地势对气候的影响：有利于海洋上湿润气流深入西部内陆，形成降水．所以答案是：（1）西高东低；自西向东；（2）黄土高原；二；（3）太行山；（4）降水．
新思维假期作业暑假吉林大学出版社系列答案
【题目】
| This boy demonstrated his invention a pen with a reading glass，in Harbin on January 20，2009.Over 16 small inventions have been made since a training course was opened at the Science Palace in Harbin in November，2008. |
| This boy's invention，which can cut an apple into pieces，was demonstrated in Harbin on January 20，2009. |
| This boy invented a musical alarm clock which he demonstrated in Harbin on January 20，2009. |
| This small car was invented in March，2010 by a college student.It has 250 cm long and 100 cm wide.The car weighs less than 50 kg.It only has one seat. |
【1】When was the training course opened at the Science Palace in Harbin?
A. In January，2009. B. In November，2008.
C. In May，2009. D. In March，2010.
【2】Which invention is the latest?
A. The small car with one seat.
B. The musical alarm clock.
C. The pen with a reading glass.
D. The machine which can cut apples into pieces.
【3】The third boy invented something that can help people ________.
A. cut an apple into pieces
B. wake up every morning
C. take the bus conveniently
D. see words clearly
【4】The underlined word “demonstrated” in the passage means “________”．
A. showed B. drew C. imagined D. divided
【5】The passage mainly talks about ________.
A. several new inventions
B. students' school life
C. the training course in Harbin
D. the Science Palace in Harbin
