问题 选择题

下图为“1978~2000年中国县级年均水灾频次图”,回答题。

小题1:水灾多发区主要分布在(  )

A.平原地区

B.河流中下游地区

C.湿润地区

D.外流区小题2:关于水灾多发区及其成因的叙述正确的是(   )

A.西北地区——融雪洪水

B.东北地区——城市规模扩大

C.黄土高原——连年气候异常

D.长江中下游地区——冰凌洪水

答案

小题1:D

小题2:A

题目分析:

小题1:根据图中图例判断,并结合选项比较分析即可。

小题2:各地区水灾的成因要注意考虑其自然和人为原因。西北地区降水少,其水灾的发生应主要和全球变暖、春季雪灾增多有关;黄土高原水灾主要和该地植被破坏严重、夏季多暴雨等因素有关;长江中下游地区水灾多发和围湖造田、降水多且降水时间长等有关;东北地区由于建国后对湿地的开发,导致其蓄水能力减弱,水灾多发。

点评:本题难度低,学生只要能掌握水灾的主要形成原理,并能利用我国不同地区的自然地理环境特征进而分析不同地区的水灾主要形成原因。

阅读理解

Do you love holidays but hate the increase weight that follows? You are not alone.

But every day I went to see the doctor, I had to wait about 50 minutes. He would see two or three patients at the same time, and often stop treating one so as to see another. Yet he charged me $115 each time .The final examination report consisted of ten lines, and it cost me $215.

With proper planning, though, it is possible to control your weight. The idea is to enjoy the holidays but not to eat too much. You don't have to turn away from the foods that you enjoy. The following suggestions may be of some help to you.

Do not miss meals. Before yon leave home for a feast(宴会),have a small, low-fat snack(小吃). This may help to keep you from getting too excited before delicious foods. Begin with clear soup and fruit or vegetables. A large glass of water before you eat may help you feel full. Use a small plate; a large plate will encourage you to have more than enough.

Better not have high-fat foods. Dishes that look oily or creamy have much fat in them.

Choose lean meat(瘦肉 ).Fill your plate with salad and green vegetables.

If you have a sweet tooth, try mints (薄荷) and fruits. They don’t have fat content as cream and chocolate.

Don’t let exercise take a break during the holidays. A 20-minute walk after a meal can help burn off excess(过多的) calories.

小题1:Holidays are happy days with pleasure but they may ______

A.bring weight problems

B.bring you much trouble in your life

C.make you worried about your foods

D.make you hate delicious foods小题2:In order to really enjoy your holidays without putting on weight, you'd better__

A.drink much water and have vegetables only

B.not eat the food in high fat

C.not accept invitations to feasts

D.turn away from delicious foods小题3:According to the passage, ___ is a necessary part to stop you from putting on weight.

A.Vegetables

B.Water

C.calories of energy

D.physical exercise小题4:Many people can't help putting on weight after the holidays because they _______ .

A.can't control themselves

B.go to too many feasts

C.enjoy delicious foods

D.can't help turning away from the foods

名词解释