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Maybe you know floods, earthquakes and so on. But have you heard of typhoons?
Typhoons are one of the worst kinds of storms, usually around the Pacific Ocean. Most typhoons happen in July, August and September.
How does a typhoon happen? When lots of seawater gets hot in summer, it evaporates (蒸发) into the air. This makes the air hotter. When the air gets warm enough, it starts to move higher up into the sky. Then cooler air around it rushes in. It fills the space that is left. After the air gets warmer, it starts to move quickly, making wind. The wind goes in circles and keeps moving higher in the sky. The warmer the air gets, the more quickly the wind moves. And when the maximum sustained wind speed (最大持续风速) reaches about 33 metres a second, it is called a typhoon.
A typhoon has two parts, and one is called the “eye”. In the eye, the wind does not move so fast. The other part is the wall of clouds around the eye. The strongest winds and the heaviest rain are found here.
Typhoons are very dangerous. So what should we do when a typhoon hits? The following are some useful tips.
· Stay inside. Close all the windows and stay away from them.
· Try to bring all of your things inside. Strong wind could even blow away your bikes!
· Listen to the radio, watch TV or check your phone messages (短信) for important information.
· If you’re told to go to a safer place, do it right now.
(
A. an advertisement B. a travel record
C. a weather report D. a science magazine
(
A. in the hot season B. in the cold season
C. only in China D. under the sea
(
① The wind moves fast enough, and a typhoon starts.
② The air moves quickly, making wind.
③ The sun makes seawater hot.
④ The air gets warmer.
A. ④③②① B. ③④②① C. ③④①② D. ④②①③
(
A. The warmer the air gets, the more slowly the wind moves.
B. Usually few people will die in a typhoon.
C. The strongest winds and the heaviest rain are in the wall of clouds.
D. When the maximum sustained wind speed reaches about 10 metres a second, it is called a typhoon.
(
A. open all the windows B. bring things outside
C. watch TV for fun D. stay inside
Typhoons are one of the worst kinds of storms, usually around the Pacific Ocean. Most typhoons happen in July, August and September.
How does a typhoon happen? When lots of seawater gets hot in summer, it evaporates (蒸发) into the air. This makes the air hotter. When the air gets warm enough, it starts to move higher up into the sky. Then cooler air around it rushes in. It fills the space that is left. After the air gets warmer, it starts to move quickly, making wind. The wind goes in circles and keeps moving higher in the sky. The warmer the air gets, the more quickly the wind moves. And when the maximum sustained wind speed (最大持续风速) reaches about 33 metres a second, it is called a typhoon.
A typhoon has two parts, and one is called the “eye”. In the eye, the wind does not move so fast. The other part is the wall of clouds around the eye. The strongest winds and the heaviest rain are found here.
Typhoons are very dangerous. So what should we do when a typhoon hits? The following are some useful tips.
· Stay inside. Close all the windows and stay away from them.
· Try to bring all of your things inside. Strong wind could even blow away your bikes!
· Listen to the radio, watch TV or check your phone messages (短信) for important information.
· If you’re told to go to a safer place, do it right now.
(
D
) 1. This passage is most probably from .A. an advertisement B. a travel record
C. a weather report D. a science magazine
(
A
) 2. Typhoons often happen .A. in the hot season B. in the cold season
C. only in China D. under the sea
(
B
) 3. In which order does a typhoon happen?① The wind moves fast enough, and a typhoon starts.
② The air moves quickly, making wind.
③ The sun makes seawater hot.
④ The air gets warmer.
A. ④③②① B. ③④②① C. ③④①② D. ④②①③
(
C
) 4. Which of the following is TRUE according to the passage?A. The warmer the air gets, the more slowly the wind moves.
B. Usually few people will die in a typhoon.
C. The strongest winds and the heaviest rain are in the wall of clouds.
D. When the maximum sustained wind speed reaches about 10 metres a second, it is called a typhoon.
(
D
) 5. When a typhoon comes, we had better .A. open all the windows B. bring things outside
C. watch TV for fun D. stay inside
答案
1.D 2.A 3.B 4.C 5.D
解析
【分析】
本题为英语阅读理解题，属于科普类文章的细节理解与推理判断题。解题思路为：先通读全文把握文章主旨（介绍台风的形成、结构及应对措施），再针对每个题目回到原文定位对应信息，逐一分析选项，排除与原文不符的干扰项，最终确定正确答案。
【解析】
1. 本题考查文章来源。文章详细介绍了台风的形成、结构及应对方法，属于科普知识类内容，最可能出自科学杂志，故选D。
2. 本题考查台风发生的时间。根据原文“Most typhoons happen in July, August and September”及台风形成于夏季海水受热的描述，可知台风多发生在炎热季节，故选A。
3. 本题考查台风形成的顺序。根据原文：①海水受热（③）→空气变热（④）→空气快速移动形成风（②）→风速达标成为台风（①），顺序为③④②①，故选B。
4. 本题考查细节判断。A项与原文“The warmer the air gets, the more quickly the wind moves”不符；B项原文未提及台风死亡人数；C项与原文“The strongest winds and the heaviest rain are found here（指眼周围的云墙）”一致；D项原文为最大持续风速约33米/秒才是台风，故选C。
5. 本题考查台风应对措施。根据原文“Stay inside”可知台风来时应待在室内，故选D。
【答案】
1.D 2.A 3.B 4.C 5.D
【知识点】
英语阅读理解、科普类文章阅读、细节理解题
【点评】
本题围绕科普类文章设置，主要考查学生对文章细节的查找与理解能力，需准确定位原文信息，排除干扰选项，整体难度适中。
【难度系数】
0.6
本题为英语阅读理解题，属于科普类文章的细节理解与推理判断题。解题思路为：先通读全文把握文章主旨（介绍台风的形成、结构及应对措施），再针对每个题目回到原文定位对应信息，逐一分析选项，排除与原文不符的干扰项，最终确定正确答案。
【解析】
1. 本题考查文章来源。文章详细介绍了台风的形成、结构及应对方法，属于科普知识类内容，最可能出自科学杂志，故选D。
2. 本题考查台风发生的时间。根据原文“Most typhoons happen in July, August and September”及台风形成于夏季海水受热的描述，可知台风多发生在炎热季节，故选A。
3. 本题考查台风形成的顺序。根据原文：①海水受热（③）→空气变热（④）→空气快速移动形成风（②）→风速达标成为台风（①），顺序为③④②①，故选B。
4. 本题考查细节判断。A项与原文“The warmer the air gets, the more quickly the wind moves”不符；B项原文未提及台风死亡人数；C项与原文“The strongest winds and the heaviest rain are found here（指眼周围的云墙）”一致；D项原文为最大持续风速约33米/秒才是台风，故选C。
5. 本题考查台风应对措施。根据原文“Stay inside”可知台风来时应待在室内，故选D。
【答案】
1.D 2.A 3.B 4.C 5.D
【知识点】
英语阅读理解、科普类文章阅读、细节理解题
【点评】
本题围绕科普类文章设置，主要考查学生对文章细节的查找与理解能力，需准确定位原文信息，排除干扰选项，整体难度适中。
【难度系数】
0.6
