1、届高考英语阅读理解科普类说明文 有解析科教科普类1、 Australia leads the world in its number of resident poisonous spiders as well as the strength of their toxicity(毒性). However,of almost 9,800 species most are perfectly harmless and interesting. Spider diversity is broad and many fascinating species occur here that range fr
2、om the large to the tiny and hardly noticed, and from the dullest black to the strangely shaped. Spiders can be roughly classified according to the strategies(策略) they use for feeding. Spiders which appeared earlier in the evolutionary scale feed by waiting in a cave for food to come along before gr
3、abbing it. Following them were spiders which actively wandered looking for food and which caught it by chasing it down. The evolution of flying insects makes spiders evolve new ways of catching food which couldnt be chased and so the earliest air web weavers arose. Most spiders feed on insects and o
4、ther arthropods but the Whistling Spider feeds on frogs and small birds. The Golden Orb Spider also feeds on small birds. A spider periodically sheds(蜕皮;脱落) its skin so that it can grow. Immature stages are called moults. Each species has a particular number of moults that it will go through before
5、reaching its final adult stage. Usually, once male spiders have mated, they die shortly after. But, even in death, Redback males often serve a purpose. The already pregnant Redback females always kill their lover and, in most cases, also eat them. This provides them with a small reproductive advanta
6、ge. Allowing spiders to take up places around houses can be beneficial in that they catch other annoying insects such as mosquitoes and flies. Rest assured that while you might see some large spiders, and perhaps even some poisonous ones, a good rule is to look and admire but dont touch any spider y
7、ou find. Even those without poison could still have a nasty bite.1.Different families of spiders are identified themselves by_.A.their physical characterB.their ways of getting foodC.the strength of their toxicityD.their effect on the environment2.What are the latest spiders in their evolution proce
8、ss?A.Spiders that chase down insects for food.B.Spiders that wait for the insects to come along.C.Spiders that can weave webs to catch flying insects.D.Spiders that actively go out to look for insects as food.3.If a spider stays on the wall of your house, youd better_.A.kill itB.feed itC.let it beD.
9、chase it out4.What is the passage mainly talking about?A.A brief introduction of spiders.B.The evolution process of spiders.C.Living harmoniously with spiders.D.The living and feeing habits of spiders.2、 Many people believe that you lose the ability to learn new languages as you get older. Language
10、experts,however,will tell you that youre never too old to learn a new language. As you get older, it can be more difficult to learn a new language,though. Children and adults learn new languages in different ways. For children, language is their life. They study for thousands of hours every year. Be
11、cause they need to learn language to became part of their communities.Adults,on the other hand,are already part of a language community. Learning a new language means becoming part of another language community,and adults rarely get the chance to practice as much as young children do. Moreover.child
12、ren leaning a new language are expected to make mistakes. This gives them freedom when learning to be daring and confident Adults,however,often feel pressured to be perfect when learning a new language.This can discourage many people and make it even harder to learn a new language. When young childr
13、en learn a new language,they come to see various languages as a “normal” part of society.This mindset(思维模式) helps them embrace learning a new language without feeling like theyre doing something unusual or“too hard”. So if you want to learn a new language,go for it! Its never too late to learn a new
14、 language. If youre older,it may take more work,but it can be done.If youre a young child,though,now is the time to step out and learn a new language!1.By “Language is their life”,the author means that children .A.cant live without languageB.lead a happy life every dayC.practice a new language a lot
15、D.are taken good care of adults2.What may make it hard for the old people to learn a new language!A.They are afraid of being laughed at.B.They usually have too many interests.C.They think making mistakes is natural.D.They always make all kinds of mistakes.3.Which of the following shows the differenc
16、e between children and adults in learning new language?A.The behaviors they have.B.The learning attitudes.C.The future plans they have made.D.The materials they are using.4.According to the author,a new language .A.can never be learned by the old peopleB.can be grasped by the people easilyC.can be understood on
