Two thieves came to a house to steal something, they dug a hole in the wall of the house.
   There lived many mice in the house. The woman in the moonlight saw a mouse crawl(爬行) into the house. “Look! In comes one,” she said to the man in the house. He was so frightened that he hurriedly crawled out of the house and said to the one waiting outside, “She found me when I was just in.” But the thief outside didn’t believe him, so he said, “Let us two try to crawl into the house together.” At that time two mice happened to crawl into the house, too. The woman saw the mice and shouted, “In come two, catch them!” The two thieves were terribly frightened. The man in the house said, “You saw them come in but where are they? I will catch them tonight.” The two thieves started running away at once.
The two thieves wanted to make it clear whether they had been found or not the night before. The next day they acted as men selling sweet potatoes and came before the house. The man and the woman were ploughing in their fields. The rein(缰绳)broke and the woman came home for a rope. She saw two men selling sweet potatoes and wanted to buy some. She picked out two which looked like mice. At the time the man couldn’t wait for her any longer in the fields and he ran back from the fields to hurry her up. The woman showed the sweet potatoes to the man and said, “How they look like the two of last night.” The man said, “I asked you to fetch a rope, why don’t you hurry for it?” The two thieves ran away very quickly without their sweet potatoes.
1. The two thieves failed to steal anything from the house because______.
A. they were found out
B. they were frightened by what they had heard in the house
C. they didn’t work together well with each other
D. mice stopped them from doing so
2. From the last paragraph, we know that ______.
A. the two thieves were famous selling sweet potatoes
B. the woman recognized the two thieves
C. the woman pretended to know nothing about the two thieves and made fun of them
D. the two thieves didn’t know that they were not found at all
3. The woman said, “How they look like the two of last night.” Here “the two” refers to ______.
A. the two thieves      B. nothing     C. the mice    D. the ropes

American scientist Morse Solomon has developed an unusual method to make meat softer. First, put a kilogram or more of firm meat in a container filled with water. Add a small amount of explosives. Then, mix carefully and explode.?

No, Mister Morse is not attempting to destroy the meat. Instead, he is making it softer and also killing harmful bacteria. Mister Solomon is a meat scientist with the United States Agricultural Research Service. He began to explore the use of shock waves to soften meat ten years ago. His method is called the Hydrodynamic Pressure Process. The theory is simple. Shock waves from an explosion travel through water to the meat. The shock waves tear small pieces of muscle and other particles away from the meat. This makes the meat softer and easier to eat. The shock waves also reduce the amount of ?bacteria? in the meat. The Department of Agriculture says the process could increase food safety for companies that sell meat. Uncooked meat may contain organisms such as the Escherichia coli bacteria, also known as E.coli. E.coli can make people sick if they eat meat that is not well cooked. The Hydrodynamic Pressure Process may help reduce concerns about harmful bacteria in meat.?

Other American scientists attempted to improve the process. They used a thick-walled metal container that was buried in the ground. This device did not improve the quality of the meat as much as the simpler method. However, the scientists found there seemed to be fewer bacteria in the meat than before the process. Scientists had demonstrated that the Hydrodynamic Pressure Process could improve large pieces of meat. Next, they wanted to see if the process reduced bacteria levels in smaller pieces of ground beef that is used to make hamburgers. Their tests showed a reduction of bacteria in ground beef products. Other studies showed that ground beef containing E.coli had no measurable levels of the bacteria after the treatment.?

The Hydrodynamic Pressure Process does not kill all bacteria in the meat, however. Mister Solomon says some good bacteria remain. The agricultural scientists say more studies are needed to see if the method could be used in the meat processing industry.?

1. Which of the following titles best summarizes the main idea of the passage??

A. The Life of an American Scientist Morse Solomon.?

B. The American Agricultural Research Service.

C. An Introduction to the American Meat Processing Industry.?

D. An Introduction to the Hydrodynamic Pressure Process.?

2. What makes meat softer and easier to eat?

A. Some explosives.         B. Shock waves.?

C. Certain organisms.          D. Other particles.??

3. It had been proved that the Hydrodynamic Pressure Process _____.?

A. could improve smaller pieces of ground beef but not large pieces of meat?

B. could improve large pieces of meat but not smaller pieces of ground beef?

C. could improve large pieces of meat and reduce the bacteria in ground beef as well?

D. could improve large pieces of meat but could not reduce the bacteria in ground beef?

4. We can learn from the passage that the Hydrodynamic Pressure Process _____.?

A. proved to be a great success?

B. turned out to be a failure?

C. remains to be further studied?

D. needs to be further tested?

 

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