2020_2021学年高中英语课时分层作业13Unit5ThepowerofnatureSectionⅠ含解析新人教版选修6

- 1 - 课时分层作业(十三) Section Ⅰ

(建议用时：30分钟)

[高考题型练习提能力]

Ⅰ．阅读理解

A

Seeing a volcano erupt is a wonderful experience，and you can really feel the

beat by climbing to the summit (山顶) of Pacaya for a close­up view．There are guided

tours every day up this highly active volcano from Antigua，giving travellers a chance

to see Mother Nature at her most powerful．

Pacaya is an easy drive from Antigua，a beautiful city with many colorful houses

along its old streets that are turned into artworks during its Holy Week festival．No

matter when you come to Antigua，you won't miss the Pacaya­tour companies．

But climbing Pacaya is no easy job：it is 2，560 metres high，and reaching the

summit takes two to three hours of seemingly one­step­forward and two­step­back

movements．As you climb，you hear the dull sounds of eruptions high above．Steaming

hot remains from recent eruptions begin to line the path as you near the active summit—the McKenney Cone(火山锥)．Just as though you were going to walk over to the edge

of the cone，the road turns to the left and up to the relative safety of the old，inactive summit．

Many tours are timed so that you arrive at the cone of the volcano in plenty of

time for sunset and the full contrast between the erupting red lava and the darkening

sky．On a good day the view from the summit is extremely exciting．The active mouth

boils，sending red lava over its sides，and once in a while shoots hot streams up

to 100 metres into the air．There is a strong bad smell in the air even if you take

care to be upwind of the cone．As evening turns deeper into the night，the burning

lava quietly falls down to a side of the volcano．For you，too，it is time to get

down．

【语篇解读】 本文主要介绍帕卡亚火山。

1．What is the main purpose of this passage?

A．To attract tourists to Pacaya．

B．To describe the beauty of Pacaya． - 2 - C．To introduce guided tours to Pacaya．

D．To explain the power of nature at Pacaya．

A [写作目的题。纵观全文可知，本文是一则旅游广告，目的是吸引游客去参观帕卡亚火山喷发，故A项正确。]

2．Antigua is a city ．

A．where people can enjoy cultural festivals

B．where the climbing Pacaya tour starts

C．that gives a close­up view of Pacaya

D．that is famous for its tour companies

B [细节理解题。根据第一段第二句话可知：安提瓜是此次火山之旅开始的地方，故B项正确。]

3．Climbing to the McKenney Cone，people will ．

A．walk directly to the active summit

B．hear the continuous loud noise from above

C．make greater efforts than to other summits

D．see a path lined with remains of earlier eruptions

D [细节理解题。根据第三段第三句话可知D项正确。]

B

In the second half of each year，many powerful storms are born in the tropical

Atlantic and Caribbean seas．Of these，only about half a dozen generate the strong，circling winds of 75 miles per hour or more that give them hurricane status，and several

usually make their way to the coast．There they cause millions of dollars of damage，and bring death to large numbers of people．

The great storms that hit the coast start as innocent circling disturbances (气旋) hundreds－even thousands－of miles out to sea．As they travel aimlessly over water

warmed by the summer sun，they are carried westward by the trade winds．When conditions

are just right，warm，moist (潮湿的) air flows in at the bottom of such a disturbance，moves upward through it and comes out at the top．In the process，the moisture in

this warm air produces rain，and with it the heat is switched to energy in the form

of strong winds．As the heat increases，the young hurricane begins to turn around

in a counter­clockwise motion (逆时针方向)．

The average life of a hurricane is only about nine days，but it contains almost

more power than we can imagine．The energy in the heat released (释放) by a hurricane's

rainfall in a single day would satisfy the entire electrical needs of the United States - 3 - for more than six months．

Water，rather than wind，is the main source of death and destroying in a

hurricane．A typical hurricane brings 6­to­12­inch downpours resulting in sudden

floods．Worst of all is the powerful movement of the sea—the mountains of water moving

towards the low­pressure hurricane center．The water level rises as much as 15 feet

above normal as it moves towards shore．

【语篇解读】 文章讲述了飓风的形成过程和飓风给大自然和人类带来的巨大危害。

4．An ordinary tropical storm is called a hurricane when ．

A．it occurs in the Caribbean seas

B．its winds reach 75 miles per hour

C．it makes its way to the coastline

D．its winds begin to circle on the sea

B [细节理解题。根据第一段第二句可知其中只有约一半会形成至少每小时75英里的强热带气旋，这样就会形成飓风，有些还会登陆海岸。]

5．The counter­clockwise movement of the hurricane is caused by ．

A．the low­pressure area in the center of the storm

B．the force of waves of water

C．the increasing heat

D．the trade winds

C [细节理解题。根据第二段“As the heat increases，the young hurricane begins