题文
阅读理解。 Head above WaterTUVALU, a tiny country in the Pacific Ocean, has asked for help as it will be swallowed up by the sea.
Storms and huge waves are a constant threat and none of Tuvalu's nine little islands is more than five
meters above the sea level. Salt water is already entering the country's drinking water supply, as well as
damaging plants that produce fruit and vegetables. Without urgent help, the country's days are numbered.
But Tuvalu is not the first place to face sinking into the sea. Venice, a historic city in Italy best known
for its canals, has sunk about 24 cm over the past 100 years. Experts say that it will have sunk another 20-
50cm by 2050. A century ago, St. Mark's Square, the lowest point city, flooded about nine times a year.
Nowadays, it happens more than 100 times. While Venice is slowly sinking into the mud on which it stands,
global warming causes Tuvalu's rising sea level.
The average global temperature has increased by almost 0.5 centigrade degrees over the past century;
scientists expect it rise by extra l-3 degrees over the next 100 years.
Warmer weather makes glaciers (冰川) melt, adding more water to the ocean. The warmer temperatures
also make water expand, so it takes up more space, causing the sea level to rise. The sea level has risen about
10-25 cm in the last 100 years.
The main cause of global warming is human pollution. Through burning coal, oil and gas, people have
been increasing the green-house gases in the atmosphere, such as CO2. This adds to the power of the
greenhouse effect, making the planet even warmer.
Many scientists believe that, if the warming is not stopped, there will be huge climate changes. The sea
level could rise by one meter this century.
Should this come true-the sea will swallow up millions of homes and the world will be flooded with
"climate refugees" looking for somewhere to live? 1. We can infer from the second paragraph that _____. A. Tuvalu is in danger of being swallowed up by the sea
B. all Tuvalu's islands are about five meters above the sea level
C. drinking water in Tuvalu has been destroyed
D. Tuvalu is often flooded by storms and waves 2. The author uses Tuvalu and Venice as examples in order to explain _____. A. they are the first place sinking into the sea
B. they are both sinking into the mud where they stand
C. they will disappear in the future
D. their trouble is caused by global warming 3. Put the following events in the right order.
a. Glaciers began to melt.
b. People bum coal, oil and gas.
c. The greenhouse effect is growing.
d. The earth is getting warmer and warmer.
e. The sea level is rising.
f. More CO2 is produced.
g. Many places are sinking into the sea. A. d,f,b,c,a,e,g
B. b,f,c,d,e,a,g
C. f,c,b,d,a,e,g
D. b,f,c,d,a,e,g 4. What does "climate refugees" mean? A. People who are forced away from their homeland by climate.
B. Climate changes.
C. Rare animals.
D. Climate effect. 题型：未知难度：其他题型
答案
1-4: ADDA解析
该题暂无解析
考点
据考高分专家说，试题“阅读理解。Head .....”主要考查你对 [健康环保类阅读 ]考点的理解。健康环保类阅读
健康环保累阅读概念：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。
健康环保类文章阅读技巧：
健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：
第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；
第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；
第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。
从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。
【阅读策略】
1、概要(Summarizing)：
阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。
2、组织(Organization)：
阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。
