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 from 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 u for feeding. Spiders which appeared earlier in the evolutionary scale feed by waiting in a cave for food to come along before grabbing it. Following them were spiders which actively wandered looking for food and which caught it by chasing it down. The evolution of flying incts makes spiders evolve new ways of catching food which couldn’t be chad and so the earliest air web weavers aro.
Most spiders feed on incts and other arthropods but the Whistling Spider feeds on frogs and small birds. The Golden Orb Spider also feeds on small birds.
野孩子插曲
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 reaching its final adult stage.
Usually, once male spiders have mated, they die shortly after. But, even in death, Redback males often rve a purpo. The already pregnant Redback females always kill their lover and, in most cas, also eat them. This provides them with a small reproductive advantage.
Allowing spiders to take up places around hous can be beneficial in that they catch other annoying incts such as mosquitoes and flies.
Rest assured that while you might e some large spiders, and perhaps even some poisonous ones, a good rule is to look and admire but don't touch any spider you find. Even tho without poison could still have a nasty bite.
1.Different families of spiders are identified themlves by ______.
A.their physical character
B.their ways of getting food
C.the strength of their toxicity
D.their effect on the environment
2.What are the latest spiders in their evolution process?
A.Spiders that cha down incts for food.fuck you什么意思
B.Spiders that wait for the incts to come along.
clarify
C.Spiders that can weave webs to catch flying incts.
D.Spiders that actively go out to look for incts as food.
3.If a spider stays on the wall of your hou, you’d better ______.
A.kill it
B.feed it
C.let it be
D.cha it out
4.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.anvan
2、 Many people believe that you lo the ability to learn new languages as you get older. Language experts,however,will tell you that you’re never too old to learn a new language. As you get older, it can be more difficult to learn a new language,though.
cut out
Children and adults learn new languages in different ways. For children, language is their life. They study for thousands of hours every year. Becau 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.children 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 children learn a new language,they come to e various languages as a “normal” part of society.This mindt(思维模式) helps them embrace learning a new language without feeling like they're doing something unusual or“too hard”.
So if you want to learn a new language,go for it! It’s never too late to learn a new langu
age. If you're older,it may take more work,but it can be done.If you're 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.can't live without language
B.lead a happy life every day
C.practice a new language a lot
pleasure怎么读
D.are taken good care of adults
2.What may make it hard for the old people to learn a new language!
forinstanceA.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.
children3.Which of the following shows the difference between children and adults in learning new language?
A.The behaviors they have.
答疑B.The learning attitudes.
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