D)is in favor of banning the use of existing se,,medium C)has overestimated the danger of the ' contro Keys: 1.C 2. B 3. D 4.D 5.A(50.8% In Ol Band 2) (2-10B) A new British medical instrument is about to change dramatically our ability to recognize disease hidden inside the body. It is called the magnetic scanner, and it gives information about the body hich current machines, such as the brain scanner and the more recent body scanner, cannot provide And unlike existing machines, the new machine does not used X-ray radiation waves, which makes it much safer for patients Unlike existing scanners, a magnetic scanner can show the side or the back of a suspect part of a dy. Used on, for example, a lung with suspected damage, it can turn the image of the lung to give a series of different views. The image is not simply worked out in the computer's'imagination': the magnetic scanner actually examines every side of the lung When examining the softer part of the body with existing scanners, doctors frequently have to use a contrast mediumto make a muscular organ show up to X-ray waves. The usual" contrast medium given to patients before a stomach X-ray scan takes place is harmless, but for some brain-scans a contrast medium has to be given in an injection so that it passes into the brain. This is unpleasant and painful and it can be dangerous. The magnetic scanner needs no'contrast medium The new machine can also see in greater detail than ever before. Growths of all kinds show up clearly on the brain and so do the dead patches which are the signs of the disease, multiple sclerosis (多发性硬化) Until now patients complaining of double vision or an inability to control their muscles from time to time could be suffering from multiple sclerosis or, equally, from some much more easily cured disease and a brain scanner could not distinguish between these with certainty. The doctor can now definitely say whether or not cancer or multiple sclerosis is present. Previously, these diseases have been missed and patients have been given false information about their health. The technique is still improving with great speed: pictures produced a couple of years ago look very simple compared with those of today 1. One advantage of the magnetic scanner over existing scanner is that A)it gives more information about the body by using X-ray radiation waves B)it is a combination of the brain scanner and the body scanner C)it can be placed inside the body D)it is much safer for patients 2. The new machine can show every side of suspect part of a body by A)actually examining each side of the suspect part B)turning the suspect part in all directions C)showing a series of different views in the computer's"imagination A)patients need an injection each time before an X-ray scan takes place B)the contrast medium'causes patients great pain C)sometimes a'contrast medium' has to be given in an injection D)it is difficult to make a muscular organ show up to X-ray waves 4. a brain scanner could not distinguish with certainty A)between the dead patches and cancer B) between multiple sclerosis and some more easily cured disease with the same symptoms C)between false information and true information D)between double vision and an inability to control the muscles 5. It can be inferred from A)is excited about the magnetic scannerC) has overestimated the danger of the ‘control medium’ D) is in favor of banning the use of existing scanner Keys: 1. C 2. B 3. D 4. D 5. A (50.8% In 01 Band 2) ( 2 – 10 B ) A new British medical instrument is about to change dramatically our ability to recognize disease hidden inside the body. It is called the magnetic scanner, and it gives information about the body which current machines, such as the brain scanner and the more recent body scanner, cannot provide. And unlike existing machines, the new machine does not used X-ray radiation waves, which makes it much safer for patients. Unlike existing scanners, a magnetic scanner can show the side or the back of a suspect part of a body. Used on, for example, a lung with suspected damage, it can turn the image of the lung to give a series of different views. The image is not simply worked out in the computer’s ‘imagination’: the magnetic scanner actually examines every side of the lung. When examining the softer part of the body with existing scanners, doctors frequently have to use a ‘contrast medium’ to make a muscular organ show up to X-ray waves. The usual ‘contrast medium’ given to patients before a stomach X-ray scan takes place is harmless, but for some brain-scans a ‘contrast medium’ has to be given in an injection so that it passes into the brain. This is unpleasant and painful and it can be dangerous. The magnetic scanner needs no ‘contrast medium’. The new machine can also see in greater detail than ever before. Growths of all kinds show up clearly on the brain and so do the dead patches which are the signs of the disease, multiple sclerosis (多发性硬化). Until now patients complaining of double vision or an inability to control their muscles from time to time could be suffering from multiple sclerosis or, equally, from some much more easily cured disease and a brain scanner could not distinguish between these with certainty. The doctor can now definitely say whether or not cancer or multiple sclerosis is present. Previously, these diseases have been missed and patients have been given false information about their health. The technique is still improving with great speed: pictures produced a couple of years ago look very simple compared with those of today. 1. One advantage of the magnetic scanner over existing scanner is that __________. A) it gives more information about the body by using X-ray radiation waves B) it is a combination of the brain scanner and the body scanner C) it can be placed inside the body D) it is much safer for patients 2. The new machine can show every side of suspect part of a body by __________. A) actually examining each side of the suspect part B) turning the suspect part in all directions C) showing a series of different views in the computer’s ‘imagination’ D) using the computer’s power of imagination 3. One disadvantage of existing scanners is that __________. A) patients need an injection each time before an X-ray scan takes place B) the ‘contrast medium’ causes patients great pain C) sometimes a ‘contrast medium’ has to be given in an injection D) it is difficult to make a muscular organ show up to X-ray waves 4. A brain scanner could not distinguish __________ with certainty. A) between the dead patches and cancer B) between multiple sclerosis and some more easily cured disease with the same symptoms C) between false information and true information D) between double vision and an inability to control the muscles 5. It can be inferred from the passage that the author __________. A) is excited about the magnetic scanner