题目内容

【题目】汤姆想了解世界上主要国家的位置,选用了“世界政区地图”;玲玲想知道故宫在北京的什么位置.她选用了“北京城市图”;小军去沈阳市探访同学,他选用了“沈阳市地形图”;兰兰去“龙潭大峡谷景区”旅游,她选用了“龙潭大峡谷景区导游图”。

根据资料答下面小题

【1】哪位同学选用的地图不适用( )

A. 汤姆 B. 玲玲 C. 小军 D. 兰兰

【2】假如上面提到的4幅地图的图幅大小相等,那么表示地理事物最详细的是( )

A. 世界政区地图 B. 北京城市图 C. 沈阳市地形图 D. 龙潭大峡谷景区导游图

【答案】

【1】 C

【2】 D

【解析】

根据地图的选择及比例尺大小与地图内容详略的关系,进行分析解答。

【1】地图是学习地理必不可少的工具.人们从地图上可以直接获得大量有用的地理信息;小军去沈阳市探望同学,应查阅沈阳市交通图,C错误;结合题意,故选C。

【2】相同图幅,范围越大比例尺越小,内容越简略;范围越小比例尺越大,内容越详细;选项中的四幅地图按照范围从大到小排列为:世界政区地图>北京城市图>沈阳市地形图>龙潭大峡谷景区导游图;则比例尺从大到小依次是:龙潭大峡谷风景区导游图>沈阳市地形图>北京城市图>世界政区地图;因此表示的地理事物最详细的是龙潭大峡谷风景区导游图。故选:D。

考查比例尺大小与地图内容详略的关系。

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相关题目

【题目】 In today's world, sleep experts often say that for a better night's rest, Americans should turn off their smart phones or iPads before sleeping. Such electronic products make the brain more active, and then influence their sleep. But according to a latest survey, more than 90% of Americans often use a computer or some other kinds of electronic products in the hour before bed.

Researchers find that manmade light from some electronic products at night may reduce the brain chemicals that help to sleep. In the study, the researchers let volunteers read, play games and watch movies on a screen for different time while measuring how much light their eyes received. They found that two hours of sitting before a bright screen at night reduced the sleep chemical levels by about 22%.

Then the researchers studied the college students who often used computers at night. They got the similar results. And researchers say that may not only cause sleeplessness, but also raise the risk of obesity(肥胖症), diabetes(糖尿病) and other diseases.

To be on the safe side, the researchers suggest that we should use computer less than before, or turn down our screens as much as possible before sleeping.

说明:21、22题完成句子;23题简略回答问题;24题用英语简要概括文章的主旨大意;25题将文中画线句子译成汉语。

【1】Electronic products can ______________ and influence people's sleep.

【2】Manmade light______________ may reduce the brain chemicals which help to sleep at night.

【3】What did researchers let volunteers do in the study?

___________________________________

【4】The passage mainly tells us _____________________________________.

【5】________________________________________________________________________

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