You must ________the disappearance of these keys to the hotel manager.

[　　]

You must ________the disappearance of these keys to the hotel manager.

1. A.
   talk
2. B.
   speak
3. C.
   report
4. D.
   inform

You must ________the disappearance of these keys to the hotel manager.

[　　]

I needed to get some money so, after Christmas, I took a job in the clothes department at Graham's for the first fortnight of the January sale．I can't say that I enjoyed it, but it was an experience I'll never forget．
I could never understand why there were so many things in the sales, where did they all come from? Now I know the secret! Firstly, there is the special winter stock （货物） and the stock that people buy all the year round;  some of these things are slightly reduced．Secondly, there are the summer clothes they couldn't sell last year; these are heavily reduced to clear them．Thirdly, there are cheap clothes bought in specially for the sales; these are put out at high prices ten days before the sale begins and then are reduced by 60% in the sale．Clever! Lastly, they buy in “seconds”（clothes not in perfect condition） for the sale and they are sold very cheaply．
When I arrived half an hour before opening on the first day of the sale, there was already a queue around three sides of the building．This made me very nervous．
When the big moment arrived to open the doors, the security guards looking less confident than usual, came up to them, keys in hand．The moment they had unlocked the doors, they hid behind the doors for protection as the noisy crowd charged in．I couldn't believe my eyes; this wasn't shopping, it was a battlefield! One poor lady couldn't keep her feet and was knocked over by people pushing from behind．
Clothes were flying in all directions as people searched for the sizes, colours and styles they wanted．Quarrels broke out．Mothers were using their small children to crawl through people's legs and get hold of things they couldn't get near themselves．
Within minutes I had half a dozen people pushing clothes under my nose; each wanting to be the first served．Where had the famous English queue gone? The whole day continued like that, but I kept my temper81 was taking money hand over fist and began to realize why twice a year, Graham's were happy to turn their expensive store into a battlefield like this．
In the sale fever; people were spending money like water without thinking whether they needed what they were buying．As long as it was a bargain it was OK．You won't believe this．But as soon as I got home I crashed out for four hours．Then I had dinner and went back to bed, fearing the sound of the alarm which would tell me to get ready for the second day of the sale.
【小题1】What kind of clothes is likely to be s0ld 5% cheaper?

What makes a person a scientist？Does he have ways or tools of learning that are different from those of others？The answer is “no”. It isn’t the tools a scientist uses but how he uses these tools which make him a scientist. You will probably agree that knowing how to use a power is important to a carpenter(木匠).You will probably agree，too，that knowing how to investigate(调查)，how to discover information，is important to everyone. The scientist，however，goes one step further；he must be sure that he has a reasonable answer to his questions and that his answer he gets to many questions is into a large set of ideas about how the world works.?

The scientist’s knowledge must be exact. There’s no room for half right or right just half the time. He must be as nearly right as the conditions permit. What works under one set of conditions at one time must work under the same conditions at other times. If the conditions are different，any changes the scientist observes in a demonstration(实证)must be explained by the changes in the conditions. This is one reason why investigations are important in science. Albert Einstein，who developed the Theory of Relativity，arrived at this theory through mathematics. The accuracy(正确性)of his mathematics was later tested through investigation. Einstein’s ideas were proved to be correct. A scientist uses many tools for measurements. Then the measurements are used to make mathematical calculations(计算)that may test his investigations.

1.What makes a scientist according to the passage？

A. The tools he uses.                        B. His ways of learning.

C. The way he uses his tools.      D. The various tools he uses.

2.“...knowing how to investigate，how to discover information，is important to everyone.” The writer says this to show_______.

A. the importance of information

B. the difference between scientists and ordinary people

C. the importance of thinking

D. the difference between carpenters and ordinary people

3. A sound（合理的） scientific theory should be one that_______.

A. works under one set of conditions at one time and also works under the same conditions at other times

B. doesn’t allow any change even under different conditions

C. leave no room for improvement.

D. can be used for many purposes

4.What is the main idea of the passage？

A. Scientists are different from ordinary people.

B. The Theory of Relativity?.

C. Exactness is the core(核心)of science.

D. Exactness and way of using tools are the keys to making of a scientist.