问题 读图,填图题

读下图中国人口增长与人均耕地、人均林地的变化图和图(7-1)中国土地资源构成图,完成下列要求:

(1)我国耕地和林地共占土地总面积的___________%

(2)1996年与1949年相比,我国人均耕地与人均林地在数量上的变化趋势是_______。人均耕地从1949年的约_________到1996年时约_________。人均林地从1949年的约_________到1996年时约___________。

(3)你认为从1949年到1996年人均耕地和人均林地的这种变化,主要原因是___________________________________________________________________________________________。

(4)中国耕地总面积约占世界的7%,人均耕地是世界的1/3。造成我国耕地减少的原因有:___________________________________________(选择填空)

A.水土流失严重

B.沙漠化土地面积逐年增加

C.我国草场资源普遍超载

D.国家制定颁布了《土地管理法》、《森林法》等法令

E.城市的扩建

F.居民住房和工业用地

G.交通占用耕地

H.开垦荒地

I.农村扩建新村

(5)上述造成耕地减少的原因中,哪些是必要的:___________;哪些是不合理的:____________;你能为珍惜和合理利用每一寸土地提出哪些合理化建议:_______________________________________________________________________。

答案

(1) 37.3 

(2)逐渐减少;1800m2/人;800m2/人;1300m2/人;1000m2/人

(3)人口增长过快  

(4) ABEFGI  

(5) EFGI;AB;因地制宜,加强土地管理等等

阅读理解

阅读理解

     In their book Time to Eat the Dog: The Real Guide to Sustainable Living, Robert and Brenda

Vale say keeping a mediumsized dog has the same ecological impact as driving 10,000 km a year

in a 4.6 liter Land Cruiser.

     "We're not actually saying it is time to eat the dog. We're just saying that we need to think about

and know the ecological impact of some of the things we do and that we take for granted."

     Constructing and driving the jeep for a year requires 0.41 hectares of land, while growing and

manufacturing a dog's food takes about 0.84 hectares-or 1.1 hectares in the case of a large dog

such as a German shepherd.

     Convincing flesheating cats and dogs to go vegetarian for the sake of the planet is a nonstarter,

the Vales say. Instead they recommend keeping "greener", smaller, and more sustainable pets, such

as goldfish, chickens or rabbits.

    The book's playful title, and serious suggestion that pet animals may be usefully "recycled", by

being eaten by their owners or turned into pet food when they die, may not appeal to animal fans.

Annoying as the idea may be, the question is valid given the planet's growing population and limited

resources, Robert Vale said.

     "Issues about sustainability are increasingly becoming things that are going to require us to make

choices which are as difficult as eating your dog. It's not just about changing your light bulbs or taking

a cloth bag to the supermarket," he said.

    "It's about much more challenging and difficult issues," he added. "Once you see where cats and

dogs fit in your overall balance of things, you might decide to have the cat but not also to have the

two cars and the three bathrooms and be a meat eater yourself."

1. The authors gave their book the playful title to ________.

A. make it amusing        

B. create a vivid image

C. show writing skills      

D. arouse people's concern

2. In Paragraph 3 the writer mainly wants to tell us ________. 

A. the amount of consumed land

B. the neglected ecological impact

C. some familiar examples

D. some actual figures

3. Who may not like the idea of "recycling" pet animals? 

A. Manufacturers.            

B. Drivers.

C. Animal fans.              

D. The authorities.

4. What do the authors think of living a sustainable life?

A. Challenging.              

B. Inspiring.

C. Inviting.                  

D. Touching.

单项选择题