18.If you have a cat,you already know that a cat isn't a dog that doesn't have to be walked If you,re about to bring a cat into your family,you need to understand that basic fact.The common wisdom is that dogs are friendlier than cats.
In recent years,scientists who have done DNA studies have offered a better way to understand cats.Unlike other animals that people feed,cats domesticated themselves,and,in a way,trained humans.Cats decided to live close to humans because doing so benefited the cats themselves.
Studies show that cats have lived with humans for about 12,000 years,since people first settled down and started farming.When people started storing grain,mice arrived and started eating the grain.Clever cats figured out that the mice settlements where people stored grain were easy for hunting,so they started hanging around.Cats did what they needed to do to get the people to let them stay,but they kept up their independence.Over time,cats allowed humans to get a bit closer to them.Later,the farmers did befriend the cats.Certainly,it didn't do them any harm because they could see that the cats were really helping them out by eating mice.
Today,about a third of American families have cats.In most of those homes,the cat still more interested in pleasing themselves than in pleasing their human families.A dog may do anything it can to make you happy,but kitty will teach you to make kitty happy.
38.Compared with dogs,cats areA.
A.colder
B.friendlier
C.more warm-hearted
D.more frightening
39According to the text,why do cats decide to stay close to humans?D
A.To keep up their independence.
B.To protect grain from mice.
C.To rely on humans for food.
D.To be useful to themselves.
40.What may be the best title for the text?D
A.A common point between dogs and cats
B.he reasons why people like dogs
C.A disadvantage of raising cats
D.he basic fact about cats.
分析 本文属于说明文阅读,作者通过这篇文章主要向我们描述了一些关于猫的基本事实,猫和人类是互利互惠的.
解答 38.A.细节理解题.根据第一段If you have a cat,you already know that a cat isn't a dog that doesn't have to be walked 可知猫比狗更加冰冷独立;故选A.
39.D.细节理解题.根据第二段cats domesticated themselves,and,in a way,trained humans.Cats decided to live close to humans because doing so benefited the cats themselves可知猫决定留下来接近人类是因为有益于自己;故选D.
40.D.推理判断题.根据第一段If you,re about to bring a cat into your family,you need to understand that basic fact.The common wisdom is that dogs are friendlier than cats可知最好的标题文字是关于猫的基本事实;故选D.
点评 考察学生的细节理解和推理判断能力,做细节理解题时一定要找到文章中的原句,和题干进行比较,再做出正确的选择.在做推理判断题不要以个人的主观想象代替文章的事实,要根据文章事实进行合乎逻辑的推理判断.