74. We can infer from the passage that ______.

A. Patients in front of CAT may suffer from a bit of radiation.

B. doctors need no opening-up of the body with CAT scanners

C. CAT scanners are more expensive than regular X-ray machines.

D. CAT scanners can take photos of either the whole body or a part of it

73. What is the special use of the latest CAT scanners?

A. It provides clear pictures of moving organs

B. It can take unclear pictures of inside organs

C. It won’t cause serious skin burns, cancer or other damage to the body.

D. It helps to find out what is going on inside a person’s body without opening it up.

72. What is not true of a CAT scan?

A. It is safer than regular X rays.

B. It makes use of computer techniques.

C. It can stop the action of organ for a short time.

D. It gives clear pictures of active, moving body parts.

71. If you want to take a job during your summer vacation, which job might be suitable for you?

A. Medical Assistants.

B. Network Systems and Data Communications Analysts

C. Environmental Engineers

D. Home Health Aides

(E)

How can you find out what is going on inside a person’s body without opening the patient’s body up? Regular X rays can show a lot. CAT scans(扫描仪)can show even more. They can give a complete view of body organs(器官).

What is a CAT scan? CAT stands for a kind of machine. It is a special X ray machine that gets a 36-degree picture of a small area of a patient’s body.

Doctors use X rays to study and determine diseases and injuries within the body. X rays can find a foreign object inside the body or take pictures of some inside organs to be X-rayed.

A CAT scanner, however, uses a group of X rays to give a cross-section(横截面的)view of a specific part of the body. A fine group of X rays is scanned across the body and around the patient from many different directions. A computer studies the information from each direction and produces a clear cross-sectional picture on a screen. This picture is then photographed for later use. Several cross-sections, taken one after another, can give clear “photos” of the entire body or of any body organ. The newest CAT scanners can even give clear pictures of active, moving organs, just as fast action camera can “stop the action”, giving clear pictures of what appears unclear to the eye. And because of the 360-degree pictures, CAT scans can show clear and complete views of organs in a manner that was once only shown during operation or examination of a dead patient.

Frequent appearance before X rays can cause skin burns, cancer or other damages to the body. Yet CAT scans actually don’t cause more radiation(辐射)to the patient than regular X rays do. CAT scans can also be done without getting harmful into the patient, so they are less risky than regular X rays.

CAT scans provide exact, detailed information. They can quickly find such a thing as bleeding inside the brain. They are helping to save lives.

70. To be a medical assistant, you usually _____.

A. answer phones to explaining medications to patients.

B. keep Internet, voicemail, e-mail and so on up and running

C. conduct research and develop solutions to environmental problems

D. assist elderly or disabled people with housekeeping, bathing in their own home.

69. Which of the job mentioned in the passage need the highest degree?

A. Medical Assistants

B. Network Systems and Data Communications Analysts

C. Environmental engineers　 　D. Home Health Aides.

68. Which of the following is not the fast-growing job according to the data in the passage?

A. Social and Human Service Assistants

B. Teachers knowing several languages

C. Medical Records and Health Information Technicians.

D. Computer Software Engineers

67. In the last paragraph the writer mainly_________.

A. persuades us to have a good breakfast

B. tell us what food isn’t suitable for breakfast

C describes when and how we should have our breakfast

D. tell us what food we should have for breakfast

(D)

Finding a job can be tough -- especially when you're not looking in the right place. Tight as the job market may seem, some jobs are so hot and growing so quickly that employers are itching to find qualified candidates to fill them.

As the American population grows older and more dependent on technology, the number of medical and computer related jobs is escalating rapidly to keep pace with demand. According to the most recent data from the Bureau of Labor Statistics(BLS), 15 of the 30 fastest-growing jobs in the United States are in healthcare, and another seven are computer-related.

Here is a list of some of the fastest-growing jobs in the United States, where qualified applicants, not the employers, have the edge -- and the vital facts about each-from the BLS's Occupational Outlook Handbook:

Medical Assistants

What they do: Perform routine administrative and clinical tasks-from answering phones to explaining medications to patients -- to help keep medical practitioners' offices running smoothly.

What you need: Most employers prefer graduates of a formal, one- to two-year medical assistant training program. A high school diploma is required, and some employers provide on-the-job training.

What it pays: Median annual pay was $23,940 in 2002.

Network Systems and Data Communications Analysts

What they do: Help keep your electronic communications -- Internet, voicemail, e-mail and so on -- up and running. They test and evaluate systems such as local area networks(LANs), wide area networks(WANs), the Internet, intranets and other data communications systems.

What you need: Some employers require just an associate's degree. Other, more advanced jobs, require a bachelor's(学士)degree in a computers-related field.

What it pays: Median(中档)annual pay was $58,420 in 2002.

Environmental Engineers

What they do: In response to concerns about environmental damage, they conduct research and develop solutions to environmental problems including pollution control, ozone depletion(臭氧削减)and wildlife protection.

What you need: Usually at least a bachelor's degree.

What it pays: Median annual pay was $64,410 in 2002.

Home Health Aides

What they do: Help elderly, disabled and convalescent people live at home instead of in a hospital or nursing home by assisting with housekeeping, bathing and other tasks.

What you need: Usually short-term, on-the-job training. Workers whose employers are covered by Medicare must complete 75 hours of training and pass a competency test.

What it pays: Median wages were $8. 70 per hour in 2002.

66. Eating breakfast, in fact, makes your body_________.

A. work out of order　 B. produce too much energy

C. work well　　　　　 D. feel hungry quicker

65. If you don’t want to have breakfast in the morning, according to the writer’s suggestion, you should________.

A. see a doctor to have an examination

B. have a little supper

C. go to a restaurant to enjoy a good meal

D. have a good supper