首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
专升本
Are you planning a vacation? If you like hot and extremely dry summers, go to Phoenix, Arizona. For hot temperatures but lots of
Are you planning a vacation? If you like hot and extremely dry summers, go to Phoenix, Arizona. For hot temperatures but lots of
admin
2011-02-27
78
问题
Are you planning a vacation? If you like hot and extremely dry summers, go to Phoenix, Arizona. For hot temperatures but lots of rain and thunderstorms, try Miami, Florida. If you want average temperatures and rainfall, St. Louis, Missouri, is the spot. Or if you’ re a cold weather fan, head to Fairbanks, Alaska. Its winters are very cold with little precipitation. Each of these cities has a certain type of weather. The average weather for a place over many years is called climate, and in no two places in (he world is it exactly the same. How can this be?
Many things in nature, such as sunshine, temperature, and precipitation, affect climate. Nearness to mountain, oceans, and large lakes affects it loo. Another factor is altitude, or height above sea level. Air cools as altitude increases. So a city at a higher altitude may be colder than one at a lower altitude. Finally, winds affect climate. They move heat and moisture between the oceans and continents. Winds keep the tropics from overheating. They keep the polar regions from getting overly cold.
Climate changes over long periods of time. Some scientists think, for example, that the earth’ s climate changed at the time of the dinosaurs. They think the dinosaurs died because of the change. What causes a climate to change? One possible cause may be changes in the sun. Sunspots, for example, are cool, dark spots that form on the sun. Sunspots may decrease precipitation on the earth and cause unusually dry periods. Changes in the atmosphere may change climate too. Volcanic eruptions, for instance, release solid particles into the air. These particles may form a cloud that blocks out the sun ’ s heat. Human activity is another cause of climate change. Air pollution and the reduction of forest cover may have long-term effects on climate.
Change in climate may have caused______.
选项
A、dinosaurs to die
B、dark spots to form on the sun
C、volcanic eruption
D、air pollution
答案
A
解析
转载请注明原文地址:https://kaotiyun.com/show/cSvC777K
本试题收录于:
英语题库成考专升本分类
0
英语
成考专升本
相关试题推荐
在思想内容和艺术成就方面都堪称中国古代长篇小说高峰的作品是()
阅读屠格涅夫《门槛》中的一段文字,然后回答小题。姑娘跨进了门槛。——厚厚的门帘立刻放下来遮住了她。“傻瓜!”有人在后面咬牙切齿地咒骂。“一位圣人。”不知从什么地方传来这一声回答。最后一句评价表现了什么?
Thegovernmentofficialsaidthatthenewtaxrateswouldcomeinto______(effective)fromApril.
Themountainplaceisbeautiful,but______theworkingconditions,it’sterrible.
Ithasbeenoftensaidbypeopleinvolvedinlanguageteachingthatastudentwhoreallywantstolearnwillsucceedwhateverth
(与此同时),eventhoseofuswhoarenotscientistshavebeguntopayattentiontoair.
______telluseverything,wecouldtrytosolvehisproblem.
Whatapitythattheydon’trealizetheentireeventhadbeenarrangedfortheir______(convenient).
WhenGodmadethefirstman,heputhiminabeautifulgarden,theGardenofEden.HereAdamlivedinpeacewithalltheanimal
"Tomorrowwe’llseetheGoldenGateBridge."saidPeter."I’veneverseenagoldenbridgebefore."Peter’sfathersmiled,butsa
随机试题
国际航空货运单的编号一般采用11位数字表示,其中承运每票货物的顺序编号是()
Thestudent______averygoodquestionabouttheimportanceofsecurityinthebigcities.
(2009)住宅性能认定的申请与评定中,正确的做法是()。
会员在期货交易中违约的,期货交易所先以自有资金承担违约责任,自有资金不足的,才用风险准备金承担违约责任。( )
在波士顿矩阵中,市场占有率低,业务增长率高的业务是()。
下列纳税人自产自用应税消费品,不需缴纳消费税的有()。
根据《个人所得税法》的规定,下列各项中,免征个人所得税的有()。
在导游人员年审制度中明确规定,一次扣分达到8分,将处以()。
教育活动中要注意“三结合”,发挥教育合力,这“三结合”所指的三种教育是()。
塔西佗
最新回复
(
0
)