四六级习题练习

四六级考试六级易错题(2017/9/4)
1题:Professor Zhao was invited to____the speech.
A.complain of 
B.comment on 
C.come up with 
D.cooperate with 
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2题:The fire()a lot of smoke but little damage was caused.
A.sent up
B.gave away
C.let out
D.emitted
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3、4、5、6、7题:By far the most common snake in Britain is the adder. In Scotland, in fact, 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 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 misfortune, but not all 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 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 be of them. The adder will attack only if it feels threatened, as can be 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 intensely. If it hears you coming, it will normally get out of the way as quickly as it can, but adders 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, the less harmful the bite is likely to be, which is why children suffer more seriously from snake bites than adults. A healthy person will also have better resistance against the poison.
Very few people actually die from snake bites in Britain, and though these bites can make some people very ill, there are probably just as many cases of bites having little or no efforts, as there are of serious illness.
41. Adders are most likely to be found _______.
A. in Scotland and nowhere else
B. in wider parts of Britain
C. in shady fields in England
D. on uncultivated land throughout Britain
42. 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
43. Which of the followings statements is Not true?
A. The adder is the only poisonous snake in Britain.
B. In Scotland there are no other snakes except the adder.
C. Snake bites seem more dangerous than they actually are.
D. People's attempts at emergency treatment are utterly unnecessary.
44. When will the adder not attack you?
A. when you try to catch it
B. when you are some distance away from it.
C. when you happen to step on it.
D. when you try to pick 
45. If an adder hears you coming, it will usually _______.
A. attack you immediately
B. disappear very quickly
C. want to frighten you
D. move out of the way
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8题:Directions: In this part there is a short passage with five questions or incomplete statements.Read the passage carefully.Then answer the questions or complete the statements in less than 10 words.
Have you ever been asked to take a polygraph test for a job?A polygraph,also called a lie detector,is a device that is used to find out if someone is telling a lie.It is based on the belief that lying causes certain physical reactions.These reactions,which include a change in blood pressure and pulse rate,are measured by
the polygraph.
Lie detector tests are often used in court and in the workplace.However,a law th
at went effect in December 1988 limits the ways that employers can use these tests.Employers can no longer use them to screen(审查) people who are applying for
jobs.The only exception is for those who want government jobs as security guards or drug handlers.Also,managers can no longer ask workers to take such tests unless there is reasonable suspicion that the worker has stolen or damaged property.This will curb tests for suspected offenses,such as drug use or sexual harassm
ent,and for workers who were merely in the area of a theft.Bosses who request lie detector tests will have to tell workers why they are suspected of an offense.
Also,they may not ask questions that degrade workers,such as questions about their sex lives.
In any case,according to the new law,the test is now voluntary:You can't be fired for refusing to take it.If you have been forced to take a polygraph test,or if
you are not being given a promotion because you have refused to take the test,
you can sue the company or file a complaint with the Department of Labor.The Department of Labor can fine employers up to $10,000.
Questions:
71. What is the passage mainly about?
72. How does the polygraph work?
73. The law of December,1988 prohibits employers from examing people who apply for jobs except ____
74. Nowadays the bosses can ask the workers to take the polygraph tests only
under the condition that____
75. Under the new law,if a boss forces his worker to take a polygraph test,w
hat punishment will he get?
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9题:()theirhelp,wewouldn'thavesucceeded.
A.Hadn'tbeenfor
B.Haditnotbeenfor
C.Ithadn'tbeenfor
D.Hadn'titbeenfor
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