The streets where you live are special places

Every day brings friendly faces

Children to play with, adults you know

Who watch and help you as you grow.

So what can you do to keep it this way

A place that's happy and safe to play?

How can you help to keep it so good

For those who live in your____________?

Some older people can feel left out

When they need a hand just to get about.

You could help them use the internet

Or do their shopping if it's not done yet.

Some children might have problems in class

Get stressed when there are exams to pass.

You could help them understand a tricky part

Or show them a way to make a start.

Some streets get messy with litter around

Where people just throw things on the ground.

You and your friends could make a bin

For people to put rubbish in.

We could do lots, let's start today!

Visit a nursing home, sweep leaves away

Collect old clothes for a charity store.

There are so many ways to help others more.

There are over fifty different types of plastics. Many of them are used 1 packaging (包装). Most plastics do not break down and a lot of them are not recyclable. When they are 2 , they can pollute the air and make it very dangerous. 

One of the most popular plastics used in making bottles is called PET. This can be recycled. Plastics 3 PET need to be labeled so they can be collected easily for recycling. In America, PET is recycled and used to make 4 things, such as flowerpots and milk crates. In Germany some bottles are made from a type of plastic which breaks down in strong 5 or when buried. 6 this is expensive and the bottles might break while they are being need. 

Nearly all the things you buy from the supermarket are wrapped in something. 7 fruit and vegetables are wrapped in plastic or in plastic bags. When we use these things, we usually 8 the packaging. Packaging keeps food 9 . It protects the food and also gives us information about the product. But is it all necessary? If you add up all the packaging, it comes to a lot. 

Try not to buy things that use a lot of plastic. You'd better 10 your old plastic containers for keeping things.

A：Nice to meet you!I'm Dave from America.

B：Nice to meet you，too!I'm He Yunchen，an exchange student from China.

A：China？It's a great country. {#blank#}1{#/blank#}

B：Really？Well，next year you can come to my house for the New Year.

A：OK. {#blank#}2{#/blank#}

B：Of course not.On the New Year's Eve，we always make dumplings with family and some coins are put in the dumplings.The person with coins is lucky.

A：That's cool. {#blank#}3{#/blank#}

B：On the New Year's Day，we Chinese always visit relatives and give gifts to each other.

A：Oh，I like gifts. {#blank#}4{#/blank#}

B：In China，you shouldn't open the gift at once.You should wait and open it later.

A：Really？It's interesting. {#blank#}5{#/blank#}

B：You're welcome.

The night sky is our earliest library. There，we stored our knowledge，and passed it down around the fire

{#blank#}1{#/blank#} That night，I saw Saturn，one of the planets，and you were a part of it.{#blank#}2{#/blank#}

Although starlight is good，light pollution on Earth can be a real problem. For the past 200 years or so，we have used too much electricity to make the night brighter.{#blank#}3{#/blank#}When a lot of light shines up into the sky，some problems may appear. 

Luckily，some cities have taken action，like setting up new downward﹣directing lights along the streets or controlling unnecessary lighting.{#blank#}4{#/blank#} I hope we can watch the night sky in a way humans have watched for thousands of years.