首页
登录
职称英语
We all know that it is possible for ordinary people to make their homes on th
We all know that it is possible for ordinary people to make their homes on th
游客
2025-02-28
25
管理
问题
We all know that it is possible for ordinary people to make their homes on the equator, although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole—we know that it is not only a dangerously cold place, but that people like you and I would find it quite impossible to live there. At the present time only the scientists and explorers can do so, and they use special equipment. Men have been travelling across and around the equator on wheels, on their feet or in ships for thousands of years: but only a few men, with great difficulty and in very recent time, have ever crossed the ice to the North Pole. So it may surprise you to learn that, when traveling by air, it is really safer to fly over the North Pole than over the equator. Of course, it is not true about landings in the polar region, but the weather, if we are flying at a height of 5 , 000 meters above the Pole is a delight. At 4, 000 meters and move above the earth you can always be sure that you will not see a cloud in the sky as far as your eyes can reach. In the tropics, on the other hand, you are not certain to keep clear of bad weather even at such heights as 18, 000 or 20, 000 meters.
Aeroplanes can’ t climb as high or as quickly in cold air as in warm. Nor can clouds. In practice , this is an advantage to the aeroplane, which is already at a good height when it reaches the polar region and so does not to climb, while at the same time cold air keeps the clouds down low. [br] The polar region is______.
选项
A、a good place to land at by aeroplane
B、a good place to fly over
C、a good place to fly past
D、a good place to live in
答案
B
解析
定位到文章第一段第六句提到“when traveling by air,it is really safer to fly over the North Pole than over the equator.”可知,飞越北极上空要比飞越赤道上空安全。故选B。
转载请注明原文地址:http://tihaiku.com/zcyy/3976142.html
相关试题推荐
Fiftyyearsago,wealthypeoplelikedhuntingwildanimalsforfun______sightsee
Weallknowthatitispossibleforordinarypeopletomaketheirhomesonth
Weallknowthatitispossibleforordinarypeopletomaketheirhomesonth
Weallknowthatitispossibleforordinarypeopletomaketheirhomesonth
Atpresenttime,peoplehaveatrendtoliveinthe_________.A、suburbB、suburbs
Bythetimethewar_________,mostofthepeoplehadalreadyleft.A、brokeoutB、
Weallknowthatitispossibleforordinarypeopletomaketheirhomeso
Weallknowthatitispossibleforordinarypeopletomaketheirhomeso
Weallknowthatitispossibleforordinarypeopletomaketheirhomeso
Iaskedthesoldierwhathewasin______________life.A、ordinaryB、dailyC、common
随机试题
A—PersonnelDepartmentB—HumanResourceDepartmentC—Sales
[originaltext]W:Dad,canIgotoamoviewithSharon?M:Yeah,sure,butwait.
土壤的形态组成有A.固相 B.液相 C.气相 D.有机质 E.矿物质
阵发性室性心动过速最常见于A.健康人 B.风湿性心脏病 C.高血压性心脏病
脉象"有神"是指()A.从容和缓 B.节律一致 C.柔和有力 D
患者女性,48岁,因急性早幼粒细胞白血病收入院。化疗效果满意,目前已达到完全缓解
下列关于审计工作底稿的说法中正确的有( )。A.审计工作底稿是行政复议的重要佐
急性胰腺炎的临床表现,下述说法不正确的是A.90%以上有恶心、呕吐 B.上腹部
(2011年真题)下列关于国有独资公司的表述中,符合公司法律制度规定的是()。
注册建造师在市政公用工程管理文件中的规范签章要求有( )。A.在配套表格中“施工
最新回复
(
0
)