If a snake bites you, take a photo with your mobile phone! It may save your life. This is the surprising  1 of a British cook.

One day Henry Jackson was working in a restaurant kitchen. He picked up a dish from the table, and  2 a snake appeared...and bit him on the hand.

    A few days earlier, the snake came to the  3 from Asia in a box of bananas. It climbed out of the box and  4 under the dish.

  “I went to try to pick it up and it bit me again. I threw it 5  the kitchen, and it landed in the fridge. So I closed the door,” Mr Jackson said.

    Anyway, Mr. Jackson stayed6 and he took a photo of the snake with his mobile phone. Soon his  7 began to ache and he went to hospital. Then his chest began to hurt. Doctors couldn't say what was wrong 8 they didn't know what kind of snake it was.

Then Mr. Jackson remembered his mobile phone photo. The doctors 9  it to London Zoo. When they knew the kind of snake, they could give Mr. Jackson the right medicine, and he left hospital the next day.

  “So my advice is this: If a snake bites you, pick up your phone. Take10 photo first and then show the photo to the doctors,” suggests Mr. Jackson.“Oh, and if the snake doesn't smile for the photo, don't worry！”

A

Imagine the situation. You are driving alone in a desert or on a mountain. You have no idea where you are. You passed the last house two hours ago. Then your car breaks down. It is night and it is cold. You have no mobile phone. What do you do? Well, next time take a GPS with you. This invention may be able to help you. It is a device (装置) which uses satellites (卫星) to find the user's position (位置).It can find your position to within 20 metres. A GPS cannot start your car, but at least you will know where you are.

GPS, which means Global Positioning System, is a small radio receiver. It looks like a mobile phone. You can hold it in your hand, or put in your pocket. It is sometimes put into a watch or a telephone. We also find GPS devices in cars, planes, or boats. Some of these devices have electronic maps, so you know where you are. For example, in a city they can tell you the name of the street.

    There are three parts to the Global Positioning System. The first part is the receiver. You can hold it in your hand, or have it fixed into your car, plane, etc. The second part is a group of satellites orbiting the Earth. The receiver contacts at least four of the satellites and calculates (计算) its position. The third part of the system is a network of ground stations. They are all over the world. They control the satellites and make sure they are working well.

    Some people think that in the future the GPS will be as common as the mobile. They are becoming cheaper and more and more accurate (精确的）.There are also new uses for the GPS. Perhaps they will become like watches. Everyone will have one and you will never be lost again.

随着全球环境的恶化，越来越多的人选择过低碳生活。请写一篇英语短文，倡议你的同学们加入低碳一族。要点如下：

1节约用水、用电、用纸；

2去超市自备购物袋；

3不要购买不必要的衣服；

4不要购买一次性的杯子和碗筷；

5步行或骑自行车上学。

注意：1词数80词左右。（开头和结尾已给出，不计入总词数。）

2可适当增加细节，以使行文连贯。

With theglobal warming getting worse, more people choose to live a low carbon life forthe purpose of reducing greenhouse gases.