问题 单项选择题 案例分析题

黄河入海水量1951年大约为500亿立方米,2010年大约为140亿立方米,总体呈下降趋势,据此回答下列小题。

导致黄河入海水量变化的最主要原因是()

A、上游水电站增多

B、中游水土流失加剧

C、下游降水量减少

D、流域内用水量增多

答案

参考答案:D

解析:

【分析】根据材料,黄河入海水量1951年大约为500亿立方米,2010年大约为140亿立方米,总体呈下降趋势;说明随着时间推移,黄河中上游来水在减少,流域内用水量不断增多,是导致黄河入海水量下降的最主要原因。

【点评】考查河流水位特征和河流堆积地貌。

填空题
阅读理解

B

Volunteers, as an essential part of a successful world exposition, are a major channel for the public to participate in, serve and share the world exposition and a means to showcase the image of the host country and city. The following information is about the volunteer for the World Exposition 2010 Shanghai China.

I.Basic Requirements for Volunteers                         

●  Be willing to participate in voluntary services of Expo 2010;      

●  Age limit: Expo Site volunteers must be born before April 30,

1992 and Expo City Voluntary Service Station volunteers before

April 30, 1994;

●  Obey the laws and regulations of the PRC;

●  Be able to participate in training and relevant activities before the opening of Expo 2010;

●  Possess necessary knowledge and skills needed by the position;

●  Be in good health to meet the requirements of corresponding voluntary positions.

II.Further Information for Volunteers

●  Source

Residents of Chinese mainland, Hong Kong, Macau and Taiwan, as well as overseas Chinese, and foreigners can all apply to be the volunteers.

●  Signup methods

Applicants may log in onto the official websites for online signup.They may also consult or connect with the Expo Volunteer Stations.

●  Time

May 1 - December 31, 2009

Ⅲ.Volunteer Training

Volunteer training includes general training, special training and position training.General training is carried out through internet, while special training and position training are provided through classroom lectures and field practice.

IV.Volunteer Types

●  Expo Site volunteers refer to those offering voluntary services to visitors and the Organizer in the Expo Site, mainly including information, visitor flow management, reception, translation and interpretation, assistance for the disabled, and assistance in media service, event and conference organization and.volunteer management.

● Information booth volunteers are stationed in the Expo's information booths at key transportation centers, commercial outlets, tourist attractions, restaurants, hotels and cultural event places outside the Expo Site.They offer services including information, translation, interpretation and even first aid.

60.If you were born in April 1993, where can you be a volunteer?

A.In the Expo City.          B.In the host country.

C.In the Expo Site. D.In Chinese mainland

61.Which of the training will be done on the Internet?

A.Position training.             B.General training.

C.Classroom training.                 D.Special training.

62.Which of the following service is offered by information booth volunteers?

A.Visitor flow management.      B.Helping the disabled

C.Assistance in media service. D.Emergency First aid.