Everything about me elephant is big, from its size to how long it takes for a baby elephant to be born. Of all land animals, the elephants have the ____ (large) brain and can talk to each other using their own language. They also have ____ very good memory. They can remember lots of other elephants that they have known and have friends and family the same way humans do. They will get very sad ____ one dies and they help family members when they are sick or hurt.

    In India and Africa they ____ (use) for transportation and to carry tourists around animal parks. Elephants are different ____ many other animals because they are very kind and care about humans. They are gentle and kind and don't hurt anyone. They will only fight to protect ____ (they). There is a story of an ____ (India) king who died and for over 30 years his favourite elephant was very sad and would not do anything.

    And how do we humans treat elephants? For ____ (thousand) of years elephants have been treated very ____ (bad) and killed by humans. Although there is an international agreement to stop the ivory (象牙) from being sold, people still shoot and kill elephants to get their tusks. In fact, in 20 years there might not be any elephant left on Earth. So it is important for us ____ (save) the elephants before it's too late.

高温环境中劳动，出大力流大汗，口渴难耐时，内环境渗透压会如何变化？应对措施是什么（　　）

    A blocked airway(呼吸道) can kill someone in three to four minutes, but it can take more than eight minutes for an ambulance to arrive. So a simple procedure such as opening someone's airway can save their life while they're waiting for emergency medical help. This means you're more likely to give first aid to someone you know than a stranger.

    There are many misconceptions (误解) surrounding first aid. Below are the ‘most popular' ones with details of what you should do.

    You should put butter or cream on a burn. The only thing you should put on a burn is cold water — keep the butter for cooking. Put the affected area under cold running water for at least ten minutes.

    The best way to treat bleeding is to put the wound under a tap. If you put a bleeding wound under a tap you wash away the body's clotting agents(凝血剂) and make it bleed more. Instead put pressure on the wound with whatever is available to stop or slow down the flow of blood. As soon as possible call 999. Keep pressure on the wound until help arrives.

    Nosebleeds are best treated by putting the head back. If you put the head back during a nosebleed, all the blood goes down the back of the airway. Instead advise them to tilt(倾斜) their head forwards and ask the person to pinch(捏) the end of their nose and breathe through their mouth.

    You need lots of training to do first aid. You don't — what you mostly need is common sense. You can learn enough first aid in a few minutes to save someone's life — whether it's from a book, attending a course or watching videos online.

    Remember: anyone can save a life