问题 选择题

为了将水力发电占总发电量的比例在2015年能从目前的19%提高到40%,我国计划共修建水电站22 000座。据此回答问题。

小题1:我国水能资源的理论蕴藏量为6.8亿千瓦,但可以开发利用的只有3.8亿千瓦,这主要是因为                                                        (  )

①水电站建设周期长,投资大

②建水库筑坝拦水,要淹没农田、迁移居民

③我国河流径流量的年际变化大

④我国地质条件复杂,有些地区不宜建坝

A.①②

B.②④

C.①③

D.③④小题2:水厍建设对环境造成的不利影响可能有    (    )

①库区及周围地区云量增多、湿度增加

②上、下游间物种交流受到阻隔

③破坏了流域内的水平衡

④引发库区滑坡、泥石流等地质灾害

A.①②

B.①④

C.②③

D.②④

答案

小题1:B

小题2:C

题目分析:

小题1:我国水能开发程度低,主要因为我国水能集中分布在西南地区,而西南地质条件复杂,同时因水库造成的土地淹没面积大,移民量大。注意3.8亿为“可以开发利用”,故与水电站建设周期和投资成本、河流径流量的年际变化的关系不大。

小题2:库区及周围地区云量增多、湿度增加是水库对周围环境的有利影响,①错误;山崩、泥石流发生主要因为长时间降水,山体断裂发育,存在大量松散堆积物,沟谷陡峻等原因,④错误。

点评:本题解题的关键是掌握河流水能资源开发的基本概况和影响。

填空题
单项选择题

Some of the concerns surrounding Turkey’s application to join the European Union, to be (1) on by the EU’s Council of Ministers on December 17th, are economic--in particular, the country’s relative poverty. Its GDP per head is less than a third of the average for the 15 pre-2004 members of the EU. (2) it is not far off that of Latvia--one of the ten new members which (3) on May 1st 2004, and it is much the same as (4) of two countries, Bulgaria and Romania, which this week concluded (5) talks with the EU that could make them full members on January 1st 2007.

(6) , the country’s recent economic progress has been, according to Donald Johnston, the secretary-general of the OECD, stunning. GDP in the second quarter of the year was 13.4% higher than a year earlier, a (7) of growth that no EU country comes close to (8) . Turkey’s (9) rate has just fallen into single figures for the first time since 1972, and this week the country (10) agreement with the IMF on a new three-year, $10 billion economic program that will help Turkey (11) inflation toward European levels, and enhance the economy’s resilience.

Resilience has not historically been the country’s economic p point. (12) , throughout the 1990s growth oscillated like an electrocardiogram (13) a violent heart attack. This (14) has been one of the main reasons why the country has failed dismally to attract much-needed foreign direct investment. Its stock of such investment is lower now than it was in the 1980s, and annual (15) have scarcely ever reached $1 billion.

One deterrent to foreign investors is due to (16) on January 1st 2005. On that day, Turkey will take away the right of virtually every one of its citizens to call themselves a millionaire. Six zeros will be removed from the face value of the lira (里拉,土耳其货币单位); one unit of the local (17) will henceforth be worth what 1 million are now--ie, about £ 0.53 (0.53 欧元). Goods will have to be (18) in both the new and old lira for the whole of the year, (19) foreign bankers and (20) can begin to look forward to a time in Turkey when they will no longer have to juggle mentally with indeterminate strings of zeros.

16()

A.revive

B.remain

C.disappear

D.discharge