1 . Directions: After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

News From The World of Medicine

SHORT ON SLEEP? DON'T FORGET TO DRINK WATER

In a Pennsylvania State University study involving more than 20,000 participants, people who said they got only six hours of sleep regularly ran a greater risk of dehydration (脱水) than     1     who got eight hours. The reason might lie with a hormone (荷尔蒙) called vasopressin,     2     helps control the body’s fluid levels. It’s let out in larger quantities later in the sleep cycle,     3     people getting less shut-eye might not have the best amount of it. If you know you’re short on slumber,     4     (make) a point of drinking water.

TEN-MINUTE CANCER TEST

Australian researchers have developed a test     5     can discover cancer cells in ten minutes with 90 percent accuracy. Healthy DNA and cancer DNA, it turns out, stick to metal surfaces differently. When cancer DNA     6     (add) to water mixed with gold nanoparticles (纳米颗粒), the water remains its rosy color, when healthy DNA is added, the water turns blue.     7     the test is cheap and simple, it could be used at your primary care physician's office, with follow-up if necessary.

EXERCISE PREVENTS FALLS

Each year, at least a third of people     8     the age of 65 fall downwards. Research found that there's one factor related to notably reduced risk: exercise. People who took part in Tai Chi fell 19 percent     9     (often), while those who did balance and functional exercises, such as step-ups, chair rises, or standing on one leg, fell 24 percent less often. Most useful of all was     10     (combine) different types of exercise, including lifting weights and balance exercises.

2 . Last week when I was reading at home, my younger sister rushed in and told me an old man was lying on the ground in front of our building. I immediately took my first-aid kit and ran downstairs. He was suffering a slight heart attack. And I performed CPR on him. Luckily, an ambulance came soon and he was taken to hospital. Later that day I was told by the hospital what I did helped rescue the old man’s life. I was happy to hear that.     1     There were many people who wanted to help around the old man then. Yet no one performed first aid on him as they hadn’t attended a first-aid course.

    2     Here are my reasons.

You can gain the knowledge, skills and confidence to act in an emergency. You never know when you might need them—you could be at home, at work, at school or on holiday. If you have the skills, you can act whenever you’re needed.

    3     For your family, your neighbors or the broader community, having more people with first-aid skills helps build a stronger and more harmonious community.

You can stay safe at work.     4     With first-aid knowledge you can create a safe work environment and help meet your workplace’s safety requirements.

It’s helpful to your future career. The first-hand experience you gain through learning first aid and using your skills could help you decide if you want to pursue a career in the health profession.     5    .

A．However at the same time I felt a bit sad.

B．I received a phone call from the hospital.

C．You can be a resource for your community.

D．Illness and injury can happen anywhere, anytime.

E．You can take first-aid courses in your community for free.

F．I think everyone should learn at least some basic first-aid techniques, which can be very important.

G．It also shows your commitment to a career in the health profession when it comes to applying for jobs.