题目内容
By far the most common snake in Britain is the adder . In Scotland , there are no other snakes at all . The adder is also the only British snake with a poisonous bite . It can be found almost anywhere , but it prefers sunny hillsides and rough open country , including high ground . In Ireland there are no snakes at all .
Most people regard snake bites as a fatal (致命的) misfortune but not bites are serious , and very few are fatal . Sometimes attempts at emergency treatment turn out to be more dangerous than the bite itself , with amateurs (业余爱好者) heroically , but mistakenly , trying do-it-yourself surgery and other unnecessary measures .
All snakes have small teeth , so it follows that all snakes can bite , but only the bite of the adder presents any danger . British snakes are shy animals and are far more frightened of you than you could possibly of them . Then adder will attack only if it feels threatened , as can happen if you take it by surprise and step on it accidentally or if you try to catch it or pick it up , which it dislikes extremely . If it hears you coming , it will normally get out of the way as quickly as it can . But adders usually cannot move very rapidly and may attack before moving if you are very close .
The effect of a bite varies considerably . It depends upon several things , one of which is the body-weight of the person bitten . The bigger the person is , the less harmful the bite is likely to be , which is why children suffer far more seriously from snake bites than adults . A healthy person will also have better resistance against the poison .
Very few people actually die from snakebites in Britain , and though these bites can make some people very ill , there are probably just many cases of bites which have little or no effect .
1.We are told that British snakes are .
A.afraid of human beings B.poisonous including the adder
C.dangerous except the adder D.friendly towards human beings
2.If an adder hears you coming , it will usually .
A.attack you immediately B.wait to frighten you
C.run after you D.move out of the way
3.According to the passage , snakebite is .
A.more harmful to a healthy man than to sick man
B.less harmful to an adult than to a child
C.more dangerous than any serious illness
D.always the cause of many serious illness
4.What could be the best title of this passage ?
A.Snakes in Britain B.The Adder in Britain
C.Snakebites in Britain D.Treatments for Snakebites in Britain
1.A 2.D 3.B 4.C