Look at your classmates around you. You all wear the same uniform and similar sneakers. Do you want to stand out among them? A fashionable and useful backpack can be a great idea!
Backpacks are lightweight and easy to carry.
They are great tools for students. They help you to stay organized. You can keep school things, books and personal items like cell phones and keys neatly (整洁地). With a unique backpack, you can also stand out among your classmates.
Tourists also love backpacks. With convenient backpacks, backpackers can move freely from one place to another. Meanwhile, they can also free their hands to do other things like taking photos.
But in the very beginning backpacks were not what we see today.
It is thought that US hiker Dick Kelty invented the first modern backpack in 1951. He used nylon (尼龙) and aluminum tubing (铝制管型材料) to make backpacks lightweight. Then he added shoulder straps (带子) and waist straps to transfer(转移) much of the weight to the hips (臀部).
Today, backpacks come in different styles.
Rolling (滚动的) backpacks have wheels on the bottom. Users can pull them along the ground if they are too heavy to carry on their shoulders.
And with more people bringing laptops to school and work, backpacks also offer space for lightweight electronics.
【小题1】 Backpacks are useful for tourists because_____.

       We need to be responsible for our environment. Being a frugal consumer(节俭的消费者) is one way to help. But, what exactly does that mean?

Use It Up

       You can use things up instead of wasting them. Squeeze that last bit of toothpaste out of the rube. Use the last little piece of soap. Don’t throw away any bits of the biscuit at the bottom of the box.

Wear It Out

       You do not always need to have new things. Suppose your sneakers have broken laces, but they still fit you. Repair them and wear them longer. You don’t have to have the latest iPhone until the old one doesn’t work any more. Then you can get a new one. Think twice before replacing something that still works.

Make It Do

       When something you want is not on hand, look for something else that you already have to take its place. Suppose you are packing your lunch for tomorrow and want a butter sandwich. You are out of butter. Have a cheese sandwich instead so that you can use all of the cheese. Learn to fix broken boys instead of just throwing them away. With a little thought, you can make something do, instead of buying something new.

Do Without

       Think about all those things that you would like to have. Do you really need them? How long will you really play with that new toy you saw on TV? Making the things that we want uses up our world’s resources(资源). And, getting rid of the things we don’t want any more takes up even more resources and space.

65. Do we need to be responsible for our environment?

66. How do we deal with the last little piece of soap?

67. When do we need to get a new iPhone?

68. What should we do when something we want is not on hand?

69. What does the writer want to tell us?

We need to be responsible for our environment. Being a frugal consumer(节俭的消费者) is one way to help. But, what exactly does that mean?
Use It Up
You can use things up instead of wasting them. Squeeze that last bit of toothpaste out of the tube. Use the last little piece of soap. Don't throw away any bits of the biscuit at the bottom of the box.
Wear It Out
You do not always need to have new things. Suppose your sneakers have broken laces, but they still fit you. Repair them and wear them longer. You don't have the latest iPhone until the old one doesn't work anymore. Then you can get a new one. Think twice before replacing something that still works.
Make It Do
When something you want is not on hand, look for something else that you already have to take its place. Suppose you are packing your lunch for tomorrow and want a butter sandwich. You are out of butter. Have a cheese sandwich instead so that you can use all of the cheese. Learn to fix broken toys instead of just throwing them away. With a little thought, you can make something do, instead of buying something new.
Do Without
Think about all those things that you would like to have. Do you really need them? How long will you really play with that new toy you saw on TV? Making the things that we want uses up your world's resources(资源). And, getting rid of the things we don't want any more takes up even more resources and space.

1. 1.

   Do we need to be responsible for our environment?

2. 2.

   How do we deal with the last little piece of soap?

3. 3.

   When do we need to get a new iPhone?

4. 4.

   What should we do when something we want is not on hand？

5. 5.

   What does the writer want to tell us?