下列有关生命基础的一些重要物质的说法中不正确的是[ ] A．淀粉和纤维素都属于天

When you speak, write a letter or make a telephone call, your words carry a message. People communicate (交流) with words. Do you think you can communicate without words? A smile on your face shows you are __1__ . Tears in your eyes tell others you are sad. When you __2__ your hands in class, the teacher knows you want to __3__ something or ask questions. You __4__ your head from side to side, and people know you are saying no.
Other things can also carry messages. For example, a sign at the __5__ helps you know which bus you can take here. A sign on the wall of your school helps you __6__ the library. Signs on the doors tell you __7__ to go in or out. Have you ever noticed that there are lots of signs round you and that you receive messages __8__ them all the time? Books, newspapers, TV, radios and __9__ all help us to communicate with other people. They all help us __10__ what is going on in the world and what other people are thinking about.

小题1:	A．sorry and sad B．worried and frightened C．happy and friendly D．tired and angry

小题2:	A．put on B．put out C．put up D．put down

小题3:	A．speak B．talk C．give D．say

小题4:	A．move B．hide C．go D．put

小题5:	A．post office B．police station C．bus stop D．book shop

小题6:	A．read B．find C．watch D．look

小题7:	A．where B．which C．why D．what

小题8:	A．from B．for C．of D．about

小题9:	A．men B．teachers C．fridges D．films

小题10:

A．see B．know C．notice D．hear