题目内容
5.Deserts are found where there is little rainfall or where rain for a whole year falls in only a few weeks'time.Ten inches of rain may be enough for many plants to survive if the rain is spread throughout the year.If it falls within one or two months and the rest of the year is dry,those plants may die and a desert may form.Sand begins as tiny pieces of rock that get smaller and smaller as wind and weather wear them down.Sand dunes (沙丘) are formed as winds move the sand across the desert.Bit by bit,the dunes grow over the years,always moving with the winds and changing the shape.Most of them are only a few feet tall,but they can grow to be several hundred feet high.
There is,however,much more to a desert than sand.In the deserts of the southwestern United States,cliffs (悬崖) and deep valleys were formed from thick mud that once lay under a sea more than millions of years ago.Over the centuries,the water dried up.Wind,sand,rain,heat and cold all wore away at the remaining rocks.The faces of the desert mountains are always changing--very,very slowly---as these forces of nature continue to work on the rock.
Most deserts have a surprising variety of life.There are plants,animals and insects that have adapted to life in the desert.During the heat of the day a visitor may see very few signs of living things,but as the air begins to cool in the evening,the desert comes to life.As the sun begins to rise again in the sky,the desert once again becomes quiet and lonely.
28.Many plants may survive in deserts whenD.
A.it is dry all the year round
B.the rain falls only in a few weeks
C.there is little rain in a year
D.the rain is spread out in a year
29.Sand dunes are formed whenA.
A.sand piles up little by little
B.there is plenty of rain in a year
C.the sea has dried up over the years
D.pieces of rock get smaller
30.The underlined sentence in the third paragraph probably means that in a desert there isD.
A.too much sand
B.more sand than before
C.nothing except sand
D.something else besides sand
31.It can be learned from the text that in a desertB.
A.there is no rainfall throughout the year
B.life exists in rough conditions
C.all sand dunes are a few feet high
D.rocks are worn away only by wind and heat.
分析 本文是一篇广告布告类阅读,文章主要介绍了沙漠的形成,沙漠上的景观和生命等情况.此外,还对沙漠的自然状况以及沙漠的形成、植被、气候特征等进行了介绍.
解答 DADB
28.D 事实细节题.根据第一段第二句"…for many plants to survive if the rain is spread throughout the year",如果一年降雨量是10英寸,且降雨分布在全年,那么许多植物就可以生存.throughout the year意思是"全年"或"一年中".与B项中plenty of rain in a year同义,故选D.
29.A 事实细节题,根据第二段第二句和第三句Sand dunes (沙丘) are formed as winds move the sand across the desert.Bit by bit,the dunes grow over the years,always moving with the winds and changing the shape."当风吹动沙子穿过沙漠、沙丘就形成了.一点一点沙丘会经过几年而增大",而A项piles up gradually为"逐渐堆积起来"之意.故选A.
30.D 句义猜测题.划线句子意思是"可是,对于沙漠来说,有的不仅仅是沙子"也就是说除了沙子还有其它的自然界的东西让沙漠发生变化,并且本段有所描述.故选D.
31.B 推理判断题.根据最后一段Most deserts have a surprising variety of life.During the heat of the day a visitor may see very few signs of living things,but as the air begins to cool in the evening,the desert comes to life.在最后一段中文章描述到"大多数沙漠都生有让人惊叹的生命,在白天,观光者能够看到很少的生命体,白天一片沉寂与荒凉,只有到晚上,沙漠才有了生机",故选B.
点评 本文考察学生的理解推断能力以及细心程度,只要抓住文章的关键词,采用寻读的方法查找细节,就能找到正确答案.
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自然情况 | 位于中国的南部,气候温和,风景优美 |
景点 | 四面环水,七星公园,漓江,象鼻山等 |
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2.可适当增加细节,以使行文连贯;
3.参考词汇 象鼻山 Elephant Trunk Hill chilli sauce
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Yours
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