问题 单项选择题

下列自然现象的产生与人类排放大气污染物无关的是( )。

A.阴霾天气
B.臭氧层空洞
C.酸雨
D.雷电

答案

参考答案:D

解析: 气象上把大气中悬浮的大量微小尘粒、烟粒或盐粒的集合体,使空气混浊,水平能见度降低到10km以下的一种天气现象称为阴霾天气。故而排放污染物,与阴霾天气有关。臭氧层是大气平流层中臭氧浓度最大处,是地球的一个保护层,太阳紫外线辐射大部被其吸收。臭氧层空洞是大气平流层中臭氧浓度大量减少的空域。导致大气中臭氧减少和耗竭的物质,主要是平流层内超音速飞机排放的大量NO。以及人类大量生产与使用的氯氟烃化合物(氟利昂),如CFCL2(氟利昂-11)、CF2CL2(氟利昂-12)等。1973年,全球这两种氟利昂的产量达480万,其大部分进入低层大气,再进入臭氧层。氟利昂在对流层内性质稳定,但进入臭氧层后,易与臭氧发生反应而消耗臭氧,以致降低臭氧层中O3浓度。酸雨正式的名称是为酸性沉降,它可分为“湿沉降”与“干沉降”两大类,前者指的是所有气状污染物或粒状污染物,随着雨、雪、雾或雹等降水型态而落到地面者,后者则是指在不下雨的日子,从空中降下来的落尘所带的酸性物质而言。故而ABC都不能选,排除。故选D。

阅读理解

The following are the sculptures in the Underwater Museum, which are accessible in person by glass boat, or scuba diving.  

The Archive of Lost Dreams
The Visual: It describes an underwater archive of messages in bottles.
The Meaning: The bottles contain messages of dreams for future generations.
The Hope: The statue is placed with the purpose of helping draw visitors away from the healthy parts of the reef.
The Location: The Archive of Lost Dreams was placed 8 meters deep at Manchones Reef, close to Isla Mujeres.
Behind the Scenes: The collection of bottled messages were provided by various communities who wrote about today’s values and their dreams for the future generations.

The Gardener of Hope
The Visual: Here a young Mexican girl lies in a garden surrounded by pots which will be grown with live coral.
The Meaning: The young girl in the sculpture represents a model for hopeful future generations.
The Hope: The base of the Gardener of Hope was built to attract various marine creatures. The coral in the pots is also expected to grow.
The Location: The Gardener of Hope was placed 4 meters deep at Punta Nizuc near the coast of Cancun.
Behind the Scenes: The pots here are filled with live coral cuttings that were saved from areas of the local reef system.

Man on Fire 
The Visual: Man on Fire describes a lone male figure covered in live fire coral to resemble fire.
The Meaning: The sculpture symbolizes the unawareness of the “fire” our generation has started with the over use of limited natural resources.
The Hope: Man on Fire has 75 holes planted with small live cuttings of fire coral which are expected to grow like fire.
The Location: Man on Fire was installed 8 meters deep at the Manchones Reef nearby to Isla Mujeres.
Behind the Scenes: The sculpture was cast from a local Mexican fisherman and it weighs over 1 ton.

The Silent Evolution
The Visual: Here more than 400 sculptures depict the timeline of human nature.
The Meaning: It is a documentation of how society and people have changed over time. It is also to remind us of how we are connected to nature.
The Hope: The installation is designed for forming a complex reef structure that marine life will claim as its own and inhabit.
The Location: The Silent Evolution will be installed 8 meters deep behind the Manchones Reef.
Behind the Scenes: The total installation will expand over 150 square meters and will weigh over 120 tons.
Attention:  Guided tours are a must. You can catch a tour from Aquaworld, which leaves every hour from 9 a.m. to 3 p.m. daily. 
小题1:Which of the following is true according to the passage?
A.You can tour individually without a tourist guide by glass boat.
B.The Gardener of Hope will remind us of the relationship with nature.
C.Bottled messages are filled with live coral cuttings for future generations.
D.Man on Fire can educate us to protect the limited natural resources.
小题2:Which sculptures are installed in the same area?
A.Man on Fire & The Silent Evolution
B.The Archive of Lost Dreams & Man on Fire
C.The Gardener of Hope & The Silent Evolution
D.The Archive of Lost Dreams & The Gardener of Hope
小题3:The writer introduces the sculptures to _______.
A.defend Mexican Tourism Industry
B.call on us to go on a tour to Aquaworld
C.appeal to readers to protect Marine Life
D.attract tourists to the Underwater Museum
判断题