在我国，将产自良好生态环境的，、、的食品，统称为绿色食品。

— ______ do you want to go shopping?

— After school. [ ]

A.How

B.What

C.When

D.Where

Hiking

If you like to hike during the warm months, you’ll probably like to hike in the winter. The landscape changes completely from summer to fall to winter, and the snow can make for some really beautiful photos. Be sure to bring your camera with you to capture all the awesome scenery. Because it’s cold out, you also have the added benefit of not sweating too much through your clothes, and it’s a great excuse to grab some hot chocolate when you finish your hike.

Cross-country skiing

Cross-country skiing is great exercise and a great way to see the winter scenery at the same time. If you’ve never done cross-country skiing before, be sure to check with an expert before trying it yourself. Knowing what to expect can keep you safe and prevent an injury.

Snowball fighting

Everyone remembers going outside, building a snow fort(城堡),and having snowball fights when they were kids. The fun doesn’t have to stop when you’re an adult! Go outside with your friends, build a fort and start throwing snowballs at each other. If you have kids, get them in on the action. Throwing snowballs is a great way to use some extra energy and can be really fun for the whole family.

Bird-watching

Lots of birds migrate during the winter months, and these quiet, cold hours can be a great time to see them like never before. Eagles, for example, migrate through central Illinois in February, and watching them fly through Starved Rock State Park is a breathtaking sight. Check your local parks to find out what birds you can see in your area and get out there to see them.

小题1:What does the passage mainly talk about?

A．Outdoor winter activities

B．Popular winter sports around the world

C．Fun winter activities for children

D．Best ways to enjoy winter scenery.小题2:As for cross-country skiing, the author suggests people_______.

A．try to do it on their own

B．ask an expert for advice

C．take a camera with them

D．take a rest whenever possible小题3:Which of the following does the author suggest for those with kids?

A．Hiking　　　　　　　

B．Cross-country skiing

C．Snowball fighting　　　

D．Bird-watching小题4:What can we know about Starved Rock State Park from the passage?

A．It’s the largest natural park in Illinois.

B．It’s a good place for bird-watching.

C．It’s well-known for its strange animals.

D．It is home to a lot of birds.

冲填土是指由水力冲填泥沙形成的填土（）

如果进栈序列为e1，e2，e3，e4，则可能的出栈序列是

A．e3，e1，e4，e2

B．e2，e4，e3，e1

C．e3，e4，e1，e2

D．任意顺序

在呈现某一事物时，交替变更它存在的形式，使该事物的非本质特征不断变化，本质特征保持不变，以突出事物的本质特征，这种方式被称为（）。

A.直观教学

B.启发教学

C.比较教学

D.变式教学