The physical memory dump error is a big problem that affects even the most advanced computer systems．Although it's quite a rare error, it's one of the most stopping what you're doing and restarting your computer—making you lose all your unsaved data．This is a big problem, but there is actually a very easy way to fix it．

 There are two reasons why the physical memory dump happens．The first is pretty simple and is to do with the "hardware", and if any of these pieces are not fit for your system, it will cause the physical memory dump．So, if you've recently added any hardware to your PC, then take that out and see if it works．

The other reason is your system, the "registry"．The registry is a big database that operates in the background of Windows, storing all sorts of settings and information about your PC．The problem with the registry is that since it has so many important files inside, it's constantly got hundreds of files open every time you use your PC．And because there are so many files to open at once, Windows is constantly getting confused, leading it to save many of these files in the wrong way．These files go wrong when saved wrongly, making them difficult for your computer to read．However, if it can't read the files at all, it has no choice but to stop everything it's doing and restart your PC．This is why the physical memory dump error appears so easily—because when a registry file is so wrong that it can't be read, your computer needs to refresh itself immediately．

This latter reason for causing the physical memory dump is actually extremely common and the likelihood is that your PC is suffering from it, if you're seeing this error．Luckily, it's also incredibly easy to fix—you just need to use a software tool called a "registry cleaner" to go through the registry and fix all the problems in there．

72．From the text we can infer that ________．

       A．the dump error often happens to your PC

       B．the dump can be dealt with easily

       C．only the advanced computers suffers from the error

       D．the dump error can cause the data in your PC to be lost

73．The reason that your PC has the dump error is that ___________．

       A．the hardware loses its memory

       B．your Windows needs to be upgraded

       C．you have saved wrong files in the PC

       D．you have stored too many files in the PC．

74．What’s problem with the registry when your PC goes wrong?

       A．The register can’t read the files correctly．

       B．It must open 100 files every time you use your PC．

       C．The register doesn’t agree with the database．

       D．The register must save many important files inside．

75．What does a registry cleaner means?

       A．A software which can help you save time．

       B．A software which can remove unnecessary files

       C．A software which can repair the machine．

       D．a software which makes your PC down．

   The physical memory dump(电脑死机) error is a big problem that affects even the most advanced computer systems．Although it's quite a rare error, it's one of the most stopping what you're doing and restarting your computer—making you lose all your unsaved data．This is a big problem, but there is actually a very easy way to fix it．

    There are two reasons why the physical memory dump happens．The first is pretty simple and is to do with the "hardware", and if any of these pieces are not fit for your system, it will cause the physical memory dump．So, if you've recently added any hardware to your PC, then take that out and see if it works．

   The other reason is your system, the "registry"．The registry is a big database(数据库)that operates in the background of Windows, storing all sorts of settings and information about your PC．The problem with the registry is that since it has so many important files inside, it's constantly got hundreds of files open every time you use your PC．And because there are so many files to open at once, Windows is constantly getting confused, leading it to save many of these files in the wrong way．These files go wrong when saved wrongly, making them difficult for your computer to read．However, if it can't read the files at all, it has no choice but to stop everything it's doing and restart your PC．This is why the physical memory dump error appears so easily—because when a registry file is so wrong that it can't be read, your computer needs to refresh itself immediately．

   This latter reason for causing the physical memory dump is actually extremely common and the likelihood is that your PC is suffering from it, if you're seeing this error．Luckily, it's also incredibly easy to fix—you just need to use a software tool called a "registry cleaner" to go through the registry and fix all the problems in there．

72．From the text we can infer that ________．

       A．the dump error often happens to your PC

       B．the dump canbe dealt with easily

       C．only the advanced computers suffers from the error

       D．the dump error can cause the data in your PC to be lost

73．The reason that your PC has the dump error is that ___________．

       A．the the hardware loses its memory

       B．your Windows needs to be upgraded

       C．you have saved wrong files in the PC

       D．you have stored too many files in the PC．

74．What’s problem with the registry when your PC goes wrong?

       A．The register can’t read the files correctly．

       B．It must open 100 files every time you use your PC．

       C．The register doesn’t agree with the database．

       D．The register must save many important files inside．

75．What does a registry cleaner means?

       A．A softwar which can help you save time．

       B．A software which can remove unnecessary files

       C．A software which can repair the machine．

       D．a software which makes your PC down．

   The physical memory dump(电脑死机) error is a big problem that affects even the most advanced computer systems．Although it's quite a rare error, it's one of the most stopping what you're doing and restarting your computer—making you lose all your unsaved data．This is a big problem, but there is actually a very easy way to fix it．

    There are two reasons why the physical memory dump happens．The first is pretty simple and is to do with the "hardware", and if any of these pieces are not fit for your system, it will cause the physical memory dump．So, if you've recently added any hardware to your PC, then take that out and see if it works．

   The other reason is your system, the "registry"．The registry is a big database(数据库)that operates in the background of Windows, storing all sorts of settings and information about your PC．The problem with the registry is that since it has so many important files inside, it's constantly got hundreds of files open every time you use your PC．And because there are so many files to open at once, Windows is constantly getting confused, leading it to save many of these files in the wrong way．These files go wrong when saved wrongly, making them difficult for your computer to read．However, if it can't read the files at all, it has no choice but to stop everything it's doing and restart your PC．This is why the physical memory dump error appears so easily—because when a registry file is so wrong that it can't be read, your computer needs to refresh itself immediately．

   This latter reason for causing the physical memory dump is actually extremely common and the likelihood is that your PC is suffering from it, if you're seeing this error．Luckily, it's also incredibly easy to fix—you just need to use a software tool called a "registry cleaner" to go through the registry and fix all the problems in there．

72．From the text we can infer that ________．

       A．the dump error often happens to your PC

       B．the dump canbe dealt with easily

       C．only the advanced computers suffers from the error

       D．the dump error can cause the data in your PC to be lost

73．The reason that your PC has the dump error is that ___________．

       A．the the hardware loses its memory

       B．your Windows needs to be upgraded

       C．you have saved wrong files in the PC

       D．you have stored too many files in the PC．

74．What’s problem with the registry when your PC goes wrong?

       A．The register can’t read the files correctly．

       B．It must open 100 files every time you use your PC．

       C．The register doesn’t agree with the database．

       D．The register must save many important files inside．

75．What does a registry cleaner means?

       A．A softwar which can help you save time．

       B．A software which can remove unnecessary files

       C．A software which can repair the machine．

       D．a software which makes your PC down．

Cut out part of a healthy person’s liver and transplant it into a sick person--it sounds like a complicated and dangerous operation , not to mention very expensive. But it is sometimes the only possible cure for a seriously ill patient with liver disease.

Until now British scientists have just announced a new stem cell technique, which allows them to grow healthy liver cells outside human bodies. According to the researchers, it could be another five to 10 years before the technique can actually be used to help patients with liver disease. However, they say the method might one day replace liver transplants altogether. The study was led by the University of Cambridge and the Welcome Trust Sanger Institute, a British genomics and genetics research institute. It was published in the journal nature on October 12,2011.

The researchers took skin cells from a patient with a mutation (变异) in a gene called alphal-antitrypsin (a-l抗胰蛋白酶). This gene makes a protein that protects our bodies against inflammation (炎症). People with changed or damaged alphal-antitrypsin are not able to release the protein correctly from the liver, so the protein is trapped there and eventually leads to liver cirrhosis (肝硬化).

Scientists then used an advanced technique to cut away the faulty section of DNA from a stem cell and replace it with a corrected one, according to the journal. The stem cells went on to produce fresh and healthy liver cells with normal protein levels. Scientists put the new liver cells into mice and found that they worked very well.

Stem cells are the life source of all other cells in the body. They could transform medicine, providing treatment for blindness, spinal cord injuries and other serous injuries. They could also be used to produce new cells for damaged organs.

David Lomas, a Cambridge biology professor who worked on the team, said: “If we can use a patient’s own skins cells to produce liver cells that we can put back into the patient, we may prevent the future need for transplantation. ”

71. what is the best title of this passage?

A. How to transplant liver for patients B. A new way to transplant livers for patients

C. The difficulty in curing liver patients D. New life for liver patients

72. The first paragraph is written to _______.

A. show how difficult it is to cure liver disease

B. tell us what a liver transplant involves　

C. introduce a potential cure for liver disease

D. show how serious liver disease can be

73.Why do some people get liver cirrhosis according to the article?

A. Because their bodies are lacking in alphal-antitrypsin.

B. Because their skin cells are not able to protect against inflammation.

C. Because the alphal-antitrypsin in their bodies is changed or damaged.

D. Because their liver releases too high a level of protein.

74. According to British scientists, liver transplant might ___________.

A. become history sooner or later

B. be replaced by a new stem cell technique in five years

C. be the only possible cure liver disease in the future

D. be prevented in the future

75. What can be inferred from the passage?

A. Stem cells can keep liver cells healthy and fresh.　

B. Equaling medicine, stem cells can cure blindness, spinal cord injuries and other serous injuries

C. Stem cells can replace the damaged organs.

D. All other cells in the body can’t work well without stem cells

第二节（共5小题；每小题2分，满分10分）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

Today’s children are not satisfied with playing simple games with simple toys.   71   The electronic models are marketed. They can move and communicate. Children need toys that fit well into their renewed idea of playing pleasure.

     72   These toys are among the top ten “must haves” for every boy and girl. Their sales largely depend on the rapidly changing toy trade. Besides, the demand by parents and children for more advanced features can make a robot toy sell well.

   There are different types of robot toys in the market today.   73   However, video games are not considered as robot toys. While video games are just electronic role-playing mind games, robot toys are highly dependent on the interaction(互动) between the toy and the user. In a video game, the player has a specific goal or task that must be accomplished. The robot toy is a simulation(模仿) of an animal or human.

   There are a number of different types of robot toys in the world market today. They are all very costly. There are high-tech robot toy pets that have life-like actions and movements.   74    Not only children but even adults like robot toys and are now spending a lot of money on them in the market.

Robot toys are great educational toys that interact with and within their environment.   75   The robot toys have sensors that enable them to see, hear and feel, making them the ideal companions. And many robot toys are also designed to express emotions,

A. In fact, their demand today has changed.

B. Robot toys are popular with adults as well as children. 

C.   A robot toy is an electronic toy that is the gift of modern technology.

D. Video games are common in the world of games for children.

E. The toys enable the user to experiment and increase creativity.

F. Some of the robot toy pets can actually fetch and carry.

G. Now robot toys are playing an important part in the growth of children.