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
外语
A、When the warmer air meets with the cooler air. B、When the wind moves faster than 30 meters a second. C、When the seawater evapo
A、When the warmer air meets with the cooler air. B、When the wind moves faster than 30 meters a second. C、When the seawater evapo
admin
2013-10-30
59
问题
A bit of rain and wind in summer can be nice. But bad storms are quite different. Some of the worst storms are typhoons. Every year, about 80 typhoons hit different places around the world. The strongest ones are usually around the Pacific Ocean and the South China Sea. Most of them happen in July, August and September. Why? When lots of seawater gets hot in the summer sun, it evaporates into the air. This makes the air hotter, too. When the air gets warm enough, it starts to move higher up into the sky. Then, cooler air around it rushes in to fill the space that is left. Once the air gets warmer, it starts to move more quickly, making wind. The wind goes in circles, and it keeps moving higher in the sky. The warmer the air gets, the quicker the wind moves. And when the wind moves faster than 30 meters a second, a typhoon begins. A typhoon has two parts. One is called the "eye". This is right in the middle of a typhoon and is calm. The eye of typhoon can be about 40 kilometers wide. In the eye, the wind does not move so fast, and there are not many clouds in the eye. The other part of a typhoon is the wall of clouds around the eye. This is where the strongest winds and hardest rains are. Typhoons are very dangerous. They blow away houses and cars. And they can also kill people! Typhoons’ hard rains are bad for farmers’ crops.
23. What does the speaker say about typhoons?
24. In what condition does a typhoon begin?
25. What do we learn about the "eye" of a typhoon?
选项
A、When the warmer air meets with the cooler air.
B、When the wind moves faster than 30 meters a second.
C、When the seawater evaporates into the air.
D、When the air gets warmer and warmer.
答案
B
解析
短文提到当风速大于30米/秒时,台风就开始了,故选B。
转载请注明原文地址:https://kaotiyun.com/show/YQS7777K
0
大学英语四级
相关试题推荐
A、Becausetheyarefullofvitamin.B、Becauseitiseasytogrowthem.C、Becausetheycanbringfuntopeople.D、Becausetheyar
Forsometimepastithasbeenwidelyacceptedthatbabies--andothercreatures--learntodothingsbecausecertainactsleadto
A、SheisalmostoutofT-shirts.B、Shehastoomuchworktodo.C、Themanisgoingtodoitforher.D、Shedoesn’tknowhowtod
A、Onfoot.B、Bybus.C、Bycar.D、Bybike.B女士询问男士是否步行上班,男士回答说toofartowalk,即步行去上班太远了,男士又说如果公共汽车太拥挤的话,他希望有人能givemearide,即搭别
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthefamily.Membersofafamilylivetogetherunderthe
Throughouthistorythebasicunitofalmosteveryhumansocietyhasbeenthefamily.Membersofafamilylivetogetherunderthe
A、Horsemen.B、Brassdoors.C、Dropsofwater.D、Metalballs.D原文提到,“每隔一个小时就打开一扇门,适当的金属球数落入一个薄黄铜盘报时”,可知正确选项是D(金属球)。
A、Europe.B、America.C、Africa.D、Asia.A短文说,他3次去欧洲,他有几乎一半的唱片是在那里录制的。因此选A。
A、TheywereproducedbyBritishchainstore.B、Theyweregeneticallyengineeredfood.C、Tescowasitselffooledbytheprovider
A、Oncampus.B、Atagallery.C、Inabookstore.D、Atagrocerystore.B关键词题。女士问她能为男士做点什么,男士说自己只是看看这些油画并赞扬了店不错。由油画(paintings)可以推断,
随机试题
用拼音写出下列句子(1)最近海淀区的打架斗殴案件有所减少。(2)那些资料在北京大学的档案馆中依然保仔完好。(3)我们在江汉平原开发区找到了满意的答案。(4)与玉门乡毗邻的印度边民偶尔也来这里做生意。
磺酸的特点是()。
China’s5000-meterOlympicChampionWangJunxiaissufferingfromaseriousconditionbroughtonbystressandherheavytraini
COPD患者,动脉血气分析示pH及标准重碳酸盐增高,而PaCO2>10.7kPa,则可能存在_____________。
支气管哮喘的内因责之于伏痰,与哪些脏腑功能失调有关
钢筋安装实测项目中,属于关键项目的是()。
下列哪一种垫层厚度不应小于80mm?[2011年第33题]
记账凭证核算程序的主要缺点在于保持科目之间的对应关系。 ( )
待执行合同是指合同各方尚未履行任何合同义务,或部分地履行了同等义务的合同。()
把文章的各个段落综合起来,把握其中心思想,这是思维的()过程。
最新回复
(
0
)