首页
登录
职称英语
We all know that it is possible for ordinary people to make their homes on t
We all know that it is possible for ordinary people to make their homes on t
游客
2024-01-17
51
管理
问题
We all know that it is possible for ordinary people to make their homes on the equator(赤道),although often they may feel uncomfortably hot there. Millions do it. But as for the North Pole(北极)------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(热带), 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] It is a delight to fly at the Pole because there______.
选项
A、planes fly higher than at the equator
B、the eyes can reach about 4,000 meters
C、planes are clear of bad weather
D、planes fly more quickly than at the equator
答案
C
解析
事实细节题。第一段最后两句提到热带上空不能确保不遇到坏天气,而北极上空的情况与之相反,所以选C。
转载请注明原文地址:http://tihaiku.com/zcyy/3369509.html
相关试题推荐
Bythetimethewar______,mostofthepeoplehadalreadyleft.A、brokeoutB、bro
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
随机试题
______time,he’llmakeafirst-classtennisplayer.A、HavingB、GivenC、GivingD、
Notuntilhiscolleaguescriticizedhim_____toadmithismistake.A、doeshebeg
l在如下所示的数据流图中,共存在( )个错误 A.4 B.6 C.8
A.润泽肌肤 B.营养周身 C.温煦内脏 D.补益脑髓 E.以上都不是营
修筑长城,是针对西北边地实情所采取的积极措施,是化被动为主动。需要强调的是,长城
创新城市治理,夯实幸福之基 “城市愈大,就愈感到孤独”。随着城市进程的不断
关于车辆购置税的计算,下列说法正确的有( )。A.进口自用的应税小汽车的计税价格
以下关于纳税信用管理的规定中,正确的是()。A.纳税信用信息采集工作由省、自治
为避免电力系统内线路发生永久性故障时系统失步可来用切发电机和切负荷,具体来说一般
在粗直径钢筋的机械连接中,施工难度低、连接速度快、连接质量可靠性最优的是 (
最新回复
(
0
)