As we “happen to be” the best creature in the world, it’s our duty to look after other species (物种)．Here are some points which might help to protect wildlife.

Join organizations like Greenpeace and World Wildlife Fund.They have devoted themselves to protecting the earth and its animals.Many volunteers join organizations like these and work for the environment.【小题1】

【小题2】 Don’t buy something made from ivory (象牙) and things like this.Baby seals (海豹)  are hunted for their skin, as it is used to make expensive coats.Don’t buy them.

【小题3】 You can write a heartfelt and logical (合理的) letter to the government stating your ideas about this problem and how it can be solved.

Recycle (回收利用) and reuse.It will reduce the need to have more raw materials to produce something.【小题4】  And wild animals’ home will not be destroyed.

Governments should create more safe zones and national parks for wild animals.【小题5】 Governments should apply strict laws to stop hunting.

I hope this post was helpful.Share your views about this issue and let your voice be heard.

   Brain fitness has basic principles：variety and curiosity. When anything you do becomes second nature，you need to make a change.If you can do the crosswords（纵横字谜）in your sleep，it’s time for you to move on to a new challenge in order to get the best workout for your brain. Curiosity about the world around you，how it works and how you can understand it will keep your brain working fast and efficiently.【小题1】

Play Games

Brain fitness programs and games are a wonderful way to tease and challenge your brain. Sudoku，crosswords and electronic games can all improve your brain’s speed and memory. These games rely on logic，word skills，math and more.【小题2】 You’ll get more benefit by doing these games a little bit every day—spend 15 minutes or so，not hours.

Think Deeply

Thinking deeply every day is perhaps the single greatest thing you can do for your mind or body health.【小题3】

Eat for Your Brain

【小题4】 Focus on fish oils from wild salmon（鲑），nuts such as walnuts，seeds such as flaxseed and olive oil. Eat more of these foods and less fats. Remove trans fats（反式脂肪）completely from your diet.

【小题5】

Stories are a way that we strengthen memories，explain events and share moments. Practice telling your stories，both new and old，so that they are interesting，attractive and fun. Some basic storytelling techniques will go a long way in keeping people’s interest both in you and in what you have to say.

   Penguins are the number-one attraction for many visitors to Antarctica. If you go on a ship that is allowed to make shore landings, you may see them. But to get a close look at penguins, you have to be smart.

First of all, keep in mind that Antarctica’s visitor rules require that you remain at least five meters away from the penguins in order not to disturb them. You could easily become responsible for the death of a little penguin or the destruction of an egg if your too-close presence should disturb a penguin parent.

If a penguin is trying to move away from you, you must stop what you’re doing and back off even if you’re farther than five meters away. However, the rules don’t prevent a curious penguin from approaching within five meters of you — as long as the bird makes the move, not you.

Little penguins, in particular, are quite curious. I’ve seen several lucky tourists who were astonished to find that little penguins came right up to them. If a penguin comes extremely close to you, remember that you are not allowed to touch or hold it.

Here are more tips for getting close to penguins.

Ignore the smell: where penguins live is filled with guano（海鸟粪）and the smell takes some getting used to.

Be quiet because loud noises make penguins nervous. Fast or sudden movements signal meat — eating animals to penguins, and they react accordingly, so slow down when you walk around them.

Since it may take half an hour or more before the penguins get used to you, you need to be patient. Put away your camera — too often people are so focused on getting the pictures that they forget to look with their own eyes, but most of your most memorable experiences in Antarctica will be marked in your mind, not on a roll of films.

   If you cut down on the time you spend sitting，you might live longer. New research shows that sitting less than three hours a day might extend your life by two years.

【小题1】 But modern lifestyles and office jobs rarely give us the chance to move around. Sitting is something we do all the time and everywhere. We sit while we're eating，we sit in the car and we sit while we are watching TV. And many of us sit for many hours at work. So on average，Americans report that they sit between four and a half to five hours a day.

Exercise is important. But so is not sitting.

You may exercise often. But it does not mean you can sit for the rest of your waking hours. 【小题2】 Even if you exercise for 30 minutes a day，what goes on in the other 23-and-a-half hours a day is also very important，according to a study on how sitting all day affects the length of life. It shows that cutting television time to less than two hours a day could add one point four years to life.

【小题3】

Change is already coming to some offices，especially in the design of desks. A "standing desk" lets people stand while they work. Another new design is called the "treadmill（跑步机）desk". A treadmill is an exercise machine that lets you walk in one place. Even some U.S. schools are beginning to experiment with desks that are part bicycles to keep children moving.

Exercising while working.

【小题4】They may have got five "standing desks" for their employees or a "treadmill desk". Some other companies may not buy one for everybody but they'll have a bank of these desks where people can go for an hour a day and answer their emails or talk on the phone. People are really trying to limit the amount of time spent sitting at the desk.

Suggestions for sitting less.

If you work in an office or have a sedentary（久坐不动的）job，scientists suggest a few simple changes. Get up from your desk as often as you can. 【小题5】 Instead of emailing colleagues，walk to their offices and talk directly. If you are sitting down reading this，stand up. Move your legs. Touch your toes，if you can. Do anything but sit.

All these activities may help you live longer.

   Everyone sleeps. However, taking the time to develop a sleep habit is probably the last thing on your mind and some sleep advice simply can't be forgotten. 【小题1】.

Watch TV until you fall asleep

It has nothing to do with what you watch-TV news isn't a better pre-sleep choice than TV series. 【小题2】. The bright light keeps you awake all night. So even if you nod off（in front of the TV, for example）,you probably won't stay asleep for long.

Sleep with pets

【小题3】. They get comfortable, and then they move. This goes on all night, and whether you admit it or not, it interrupts your ability to get the level of sleep needed to feel rested.