读短文，判断对错。
    My name's Alice. Look at my classroom. It's big and clean. The floor is green, the walls are white. The door is yellow and the windows are blue. Two pictures are on the wall. They are beautiful. How many lights are there? Nine! My desk is near the door. My schoolbag is on the desk. What's in my schoolbag? A pencil box, an English book, a maths book, a Chinese book, three storybooks and five notebooks. I like my classroom. I like my schoolbag too.

缩句。

①我们应该通过有选择的读书来不断扩大自己的知识面。②这对我们的成长是非常有意义的。

马克思主义哲学具有高度的科学性和实践性，科学性是指

如图所示列举的是动植物细胞示意图：

用括号内所给单词的适当形式填空,必要时可加助动词或情态动词。
Waste can be seen everywhere in our school. Some students ask for more food than they can eat and others often forget____ (turn)off the lights when they leave the classroom. They say they can afford these things. But I____ (not agree)with them.Waste can bring a lot of problems. Although China is rich in some resources (资源), we're short of others, for example, fresh water(淡水). It____ (report) that we will have no coal(煤) or oil to use in 100 years. So if we go on____ (waste) our resources,what can we use in the future? Think about it. I think we should
say to the students who waste things every day. Everybody____ (stop) wasting as soon as possible.
In our everyday life, we can do many things____ (prevent) waste from happening, turn off the water taps(龙头) when we____ (finish) washing, turn off the lights when we leave the classroom, try not to order more food than we need, and so on. Little by little, everything will be changed. Waste can be stopped one day if we do our best.