2014高考英语二轮阅读理解基础精品训练题（1班级文化设计1）及答案
阅读理解———-—-A
Recognized as the largest dert in the world， the Sahara runs across North Africa， Covering over 3 million square miles from the Atlantic Coast to the Nile River Valley. Except for an occasional oasis(绿洲)， this vast land is mainly made up of sand， stones, and worn out mountains. The burning sun caus daytime temperatures to ri to 70 degrees in the shade， and days without rain commonly last for years。
Paintings found on the walls of caves in the Sahara Dert suggest that a few thousand years ago， large quantities of plants grew there and covered the dert floor。 Many curious and unusual incts， birds and animals got enough food that allowed them to grow and reproduce。 At that time, huge river systems and many oas supported growing communities(社团，社区) where a large number of people lived.
Rearch scientists believe that the land became a dert for veral reasons. For centuries people there have wandered from place to place in arch of food， water and grazing（吃草）land for their animals。 The people have always considered the number of animals they have as a sign of wealth。 It is considered more important to have 100 sick and starving animals than 15 healthy ones。 The large herds白鹿原书评（群）have been allowed to go freely and graze on dert plants and grass。 Over time， large ctions of land have been left uncovered。 In addition to allowing overgrazing, the people cut down whatever trees they could find and ud them for firewood。 The sand was unable to hold on to the great heat of the day, so nightting temperatures often drop below freezing and nothing was left to hold the soil together.
Scientists have been studying different ways to bring back the green dert. Through rearch and experiments, they hope to be able to produce plants that will once again support the life there. Huge holes filled with much water lie under the dert surface。 Scientists believe this rainwater simply flew down through the sand over hundreds of years and collected in the big， rocky holding tanks。 By making u of the sun’s power，
scientists in the Sahara have made experiments in which they got huge amount of electricity。 This electricity was then ud to operate drilling machines and pumps to pull the rainwater from the underground tanks。 By drilling the hole one mile deep into the floor of the dert, one machine was able to recover more than 80 gallons of ice清明节踏青—cold water each cond， or 288，000 gallons per hour。
Scientists have had some success turning this wasteland into uful farmland. Today the dert is dotted with huge wheat fields watered by a system of pipes that carry water from the underground tanks。 Farmers have also learnt that plants grow better if eds are planted next to stones。 Studies show that stones provide protection from the sun， allowing eds to grow in a shady and cool environment. In addition to that， greenhous have been built to protect plants from the sunshine so that less water is needed。 Another idea is to grow plants that can live on a diet of salt water， since the ocean is so near to the dert.
1。 What will probably happen if the local people continue their customs and traditions？
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A。 The dert will continue to be enlarged。
B. Tourists will begin traveling to North物理会考公式 Africa。
C。 More oas will begin to appear across the dert。
D. The number of healthy animals will become larger。
江腾蛟简历 答案解析：答案为A。本题为推理题。结合前三段可知，撒哈拉沙漠原本是绿洲,后由于人类过度放牧（overgrazing）、滥砍乱伐（the people cut down whatever trees they could find ）导致了沙漠的形成和扩大，因此可以推断，如果当地人继续沿袭他们的老传统,会导致沙漠继续扩大.故答案为A。
2. Which of the flowing statements is a fact prented in the passage?
A。 The dert is rich in beautiful color and scenery。
B. Camels can go for days without drinking any water。
C. The Sahara will one day become a beautiful garden.
D. Large river systems once supported many communities.
答案解析：答案为D。本题为推理题。考生需看清题意，要求选择与原文符合的事实。由第二段最后一句话 “At that time, huge river systems and many oas supported growing communities where a large number of people lived。”可知，答案为D。
由第一段 “Except for an occasional oasis， this vast land is mainly made up of sand， stones， and worn out mountains。”可知，A选项错误；B选项未提及；C选项也不是事实.故答案为D。笔记本数字键盘打不出数字
