There are all kinds of machines. They 21 in many different ways. One kind of machine is called a computer. A computer can do many things. A computer can do math problems. People can also do math problems. But they cannot do it 22 a computer. Computers remember things. Computers do 23 people tell them. People cannot remember as many things as computers. Computers help tell 24 the weather will 25 .Computers help fly rockets and spaceships. These are 26 of ways computers are used. They are used in 27 ways. Some computers do just 28 things. Some computers can do a lot of things. There are 29 computers. There are big computers. There may be computers in your school. Do you 30 what they do? 小题1:. A．use B．are used C．are using D．will use 小题2:. A．faster than B．as fast as C．more quickly than D．so big as 小题3:. A．something B．that C．everything D．things 小题4:. A．Which B．where C．what D．why 小题5:. A. be like       B. be               C. look             D feel 小题6:. A．all B．many C．a lot D．only some 小题7:. A．thousand B．thousands C．thousand of D．thousands of 小题8:. A．a little B．little C．few D．a few 小题9:. A．large B．huge C．good D．small 小题10:. A．get B．talk C．make D．know