问题 选择题

材料一:

图1是甘肃省以某种自然指标划分出来的四大区域

材料二:

    报载,江苏淮安已经正式开工建设南北地理分界线标志园,在淮河一座旧桥改造中设立标志赋予了文化和科普的含义,该桥正中设一大球,南面用红色装饰象征南方亚热带气候特征、北面用蓝色装饰象征北方温暖带气候特征。有意思的是,除了江苏淮安,还有河南信阳、安徽蚌埠都觉得自己最具中国南北地理分界线的典型性、代表性,一时间舆论哗然(图2)。

结合所学知识,回答1—2题。

1、根据材料一下列有关于四大区域的叙述,错误的是 [ ]

A、区域界线是明确的

B、区域内部整体性突出

C、区域之间差异性突出

D、四大区域是相互联系的

2、晏子使楚中有“桔生淮南为桔,桔生淮北为枳”的说法,根据材料二,从区域的基本含义理解,正确

    的是:

    ①南北区域特征的相似性和一致结构性;

    ②古人已经发现淮河是桔子和枳子明确的天然分界线;

    ③之所以会出现这样南北方迥异的自然现象是南北方自然环境各个要素相互作用形成的整体性;

    ④这种差异至今未变,说明区域之间的差异亘古难变;

    ⑤淮河之所以成为两者的界线是因为淮河天然地阻绝了南北方区域的相互影响和相互作用,南方、北

    方缺乏区域的开放性 [ ]

A、①③

B、②③

C、③④

D、④⑤

答案

1、A

2、A

问答题 简答题
问答题

When workers become more efficient, it’s normally a good thing. But lately, it has acted as a powerful brake on job creation. And the question of whether the recent surge in productivity has run its course is the key to whether job growth is finally poised to take off.

One of the great surprises of the economic downturn that began 27 months ago is this.. Businesses are producing only 3 percent fewer goods and services than they were at the end of 2007, yet Americans are working nearly 10 percent fewer hours because of a mix of layoffs and cutbacks in the workweek.

(46) That means high-level gains in productivity--which in the long run is the key to a higher standard of living but in the short run contributes to sky-high unemployment. So long as employers can squeeze dramatically higher output from every worker, they won’t need to hire again despite the growing economy.

(47) On Friday, the Labor Department will release a closely watched March employment report expected to show the pest job growth in three years, driven by stabilization in the economy and a rebound from February snowstorms.

A p March job-growth number-at a time when the economy is growing at only a middling pace--would suggest that the productivity boom has largely run its course. (48) Regardless, the question of what caused the burst in workers’ efficiency is one of the great unanswered questions of the expansion and has huge stakes for the economy over the coming year.

"It is an episode that we’re going to--we, economists in general--are going to want to understand better and look at for a long time," Federal Reserve Chairman Ben S. Bernanke said at a hearing last week in which he described the productivity gains as "extraordinary" and acknowledged he had not foreseen them.

(49) Businesses have certainly not been investing in new equipment that might enable workers to be more efficient-capital expenditures plummeted during the recession and are rebounding slowly. (50) And the structural shifts occurring in the economy are so profound that one would expect productivity to be lower, rather than higher, as people need new training to work in parts of the economy that are growing, such as exports and the clean-energy sector.

So what’s happening As best as anyone can guess, the crisis that began in 2007 and deepened in 2008 caused both businesses and workers to panic.

(47) On Friday, the Labor Department will release a closely watched March employment report expected to show the pest job growth in three years, driven by stabilization in the economy and a rebound from February snowstorms.