E. We should make use of our time to do everything.
F. We shouldn't leave today's work for tomorrow.

Your nose has many important jobs, and is always busy.

Smelling

    Smelling helps you gather information about the world around you. A good scent (气体),like flowers, brings you pleasure. A bad scent, like smoke or sour milk, warns you of danger. Most things around you release scent particles (微粒) into the air. These invisible chemicals enter the nose when you breathe. Nerves in the nose send information to the brain to identify a smell. You are able to recognize thousands of smells.

Breathing

    Most of the air you breathe enters through your nose. The nose uses hair and mucus (粘液) to clean dust and germs (细菌) out of the air. The air that enters your nose contains oxygen. Your body uses oxygen to unlock the energy in the food you eat.  Even when you sleep, your body needs energy to keep your heart beating and your brain working.

Tasting

    Your nose helps you enjoy food. Flavor is a mixture of taste and smell. The smell of the food helps you identify what you are eating. The sense of smell contributes more to (贡献) food flavor than the sense of taste .When you are sick and have a stuffy nose, your food doesn't taste as good because without smell, food loses most of its flavor.

Smell memory

    Smells can bring back memories. Your brain uses a process to create a picture in your mind from the odors(气味)you smell. Smells can affect your feelings because the part of the brain that helps you identify smells is close to the area that affects your emotions, mood and memory. More smell memories are collected as you get older.

    Your nose has many important jobs, and is more than just a smeller!

    Students in Japan are trying a new kind of travelling. In the past they could only go to the museums. That was boring for the teenagers. They often went by bus. Many of them felt sleepy in the museum. But now they can go out of doors. They can go to factories, villages and many other places they like.

    Experiential education (体验式教育) is now very popular in North America. It is also becoming more and more popular in Japan. Just look at the JTB, Japan's biggest travel agency. It has more than 300 different travel programs for students and schools. More than 25 schools have taken part in the programs.

    Where are the students going? They travel to fishing villages in Kyushu and farming villages in China. Some even go to English classes in England. Wherever they go, they enjoy helping the disabled(残疾的). By doing so, they learn how to take care of others. It's an experience that students will never forget.

    Travelling in Japan also does the farmers and fishermen good. Now there are many people visiting their villages. Visitors' coming every year brings them a lot of money and a better life.

    Drones (无人机) can do a lot of things for us, taking photos, delivering (递送) things from packages(包裹) to pizzas to beer and following wild animals.{#blank#}1{#/blank#}

    Can you believe it?{#blank#}2{#/blank#} US company IBM has made this kind of drone. It can deliver coffee to sleepy people. The drone can know when to bring a cup of coffee by studying a person's personal information. {#blank#}3{#/blank#}  There is a special device (设备) under the drone. It helps the drone to give coffee. The drone can also learn about someone's coffee-drinking habits and tell when someone need next cup of coffee.

    {#blank#}4{#/blank#}  One company in Africa use drones to deliver medicine and blood fast and save many people's lives. The drones are able to fly at speeds of up to 60 mph and when they are  within a minute of the destination(目的地), the doctors receive a text and wait nearby. The drone drops off the package and then returns to its home.

    A 92-year-old hunter in Virginia was lost and had to spend a night in the woods. The police searched for him all night but failed to find him.{#blank#}5{#/blank#} Also, drones helped firefighters know about the fire in wildfire fight.

    These days, "What do you want to do when you grow up?" is the wrong question to ask children in the USA. The question should be: "What job are you doing now？"American companies are employing more and more young people as consultants(顾问)to evaluate(评估)products for child consumers. The 12-to-19 age group spends more than $100 billion a year in the USA. Specialist agencies help manufacturers ask kids about all the latest trends in clothes, food and other markets. One company, Teenage Research Unlimited, has groups of teenagers who give their decisions on products like jeans. Another company, Doyle Research Associated, holds two-hour meetings in a room called the "imaginarium". Children are encouraged to play games to get into a creative mood. They have to write down any ideas which come into their heads.

    Some manufacturers prefer to do their own market research. The software company Microsoft runs a weekly "Kid's Council" at its headquarter in Seattle, where a group of school children give their decision on the latest products and suggest new ones. They are called young consultants. One 11-yearold consultant, Andrew Cooledge, told them they should make more computer games which are suitable for both boys and girls. Payments for the work are increasingly attractive, Andrew Cooledge was paid$250 and given some software. However, even if their ideas are valuable, the children will never make money. They cannot have the copyright to their ideas.