Do you know what you can do to protect the Earth? Here are some things you can do in your daily life.

Plant a tree

It’s good for the air and the land. It can shade (遮蔽) your house and make you have a cool summer.

Turn off computers at night

Turn off your computer if you don’t use it. You can save 40 watt-hours per day. That is 4 cents (美分) a day, or $14 per year. If you don’t want to wait for your computer to start up, set it to turn on automatically (自动地) a few minutes before you get to work.

Buy some second-hand (二手的) things

Buy things from a second-hand store such as toys, bicycles and other things. Second-hand stores often sell these things in good quality (质量) because they are used for such a short time.

Don’t take a bath

Have a no-bath week. You can take showers. If you take a shower, you can save water and energy. You can also save much money.

【小题1】How many cents can you save if you turn off your computer in a week?

A．14 cents.

B．18 cents.

C．28 cents.

D．98 cents.

【小题2】What does the underlined (画线的) word “they” refer to (指)?

A．The buyers of second-hand things.	B．Things in second-hand stores.
C．Second-hand stores.	D．Things in first-hand stores.

【小题3】How many ways does the writer give us to help the Earth?

A．One.

B．Two.

C．Three.

D．Four.

【小题4】Which is the best title (标题) for the passage?

A．How to help save the Earth?	B．Why should we protect the Earth?
C．Why the Earth is in danger?	D．What to do to help people on Earth?