I went hiking to a mountain with my friends last summer． It was a good trip at the beginning but something unexpected happened on the half way．

    One of my friends, Mike, suddenly felt a terrible pain in his stomach and he couldn't move any further． Nobody knew what to do． One girl tried to call her mum with her mobile phone but there was no signal in the mountain area． Luckily I brought medicine with me． After Mike took some, he felt much better． We walked on, and then we all enjoyed ourselves on the top of the mountain.

A.You should let your cat inside.

B. Going outside is bad for cats, too.

C. Keeping a cat is good for you.

D. The birds are fewer and fewer in America.

E. Cats can bring illness.

F. Cats kill many birds and small animals every year.

{#blank#}1{#/blank#}Many kinds of birds live in the United States，but the number of the birds is becoming smaller every year. One of the leading reasons is the growing number of pet cats. By keeping your pet cats in your home，you can help give birds a better possible chance to live.

{#blank#}2{#/blank#}Of the 90 million pet cats in this country，about two­thirds are allowed to go outside. It is said that these cats kill hundreds of millions of birds each year as well as billions of small animals such as rabbits and field mice.

{#blank#}3{#/blank#}They can also bring illness to the animals that live in people's yard(院子)，and further weakening(变弱)the health of the natural populations.

{#blank#}4{#/blank#}Allowing pet cats to go outside is not just bad for birds and wildlife(野生动物). It is bad for the cats themselves, too. Outdoor cats can get sick very easily. They may be in danger from traffic and attacks(攻击)from other animals. In fact，outdoor cats usually don't pass the age of five, while indoor cats often live to be 17 or older.

{#blank#}5{#/blank#}Keep your pet cat inside！If you raise a young cat, it's your duty to let it play inside.

（ B ）

    Some bad habits are making you grow old fast. Cut down the following habits today for a more beautiful, healthier tomorrow.

    Waiting for you sadness to go away

    Sadness isn't just uncomfortable; it also makes you become older fast. Take your mental(精神的)health as seriously as your physical health. If you've been fighting with your sadness for more than two weeks, be sure to find professional help. Paying no attention to your sadness or just waiting without doing anything can do harm to your mental health and make you older.

    Having a cigarette or two on weekends

    If you smoke only when you are with your friends on weekends, can you keep away from the harmful effects of smoking? The answer is". Smoking can break down your skin's elasticity(弹性). Your smoking habit may even make your hair become gray. Changing your smoking habit is changing your life.

    Having a long to do list day after day

    It's natural to have a to-do list in our "go, go, go" daily life. But if you're always running from one thing to the next, and caught in too much business, you are turning older fast, because your too long to-do list makes you tired and under lots of stress. Stress can cause heart disease high blood pressure and other physical diseases. It can also cause mental health problems or make the problems worse and worse.

    To be healthy and happy is important for each of us. Do you want to improve(改善)your health and feel better? Here are some ways.

    Eat whole foods. Eat some healthy foods, such as fruits, vegetables, nuts and a little meat. If you have a healthy eating habit, you'll be happier.

    Exercise. Take up a sport you really like. If you want to keep healthy, try to exercise for 30 minutes a day, twice or three times a week．

    Get enough sleep. It is best to get eight hours' sleep a day. A cup of milk before sleeping may help you get a good sleep.

    Keep yourself busy. This is good because it stops you from having bad habits. To keep yourself busy, you can walk around the house, spend time with your pets, do a sport, or do a hobby you enjoy.

    Spend time with your friends. Spend time and have fun with them. Talk with them, but you shouldn't talk about anything bad. You should stay with the people who are healthy and happy.