在管道转弯处设置的煤气管道支架一般是（）。 A.固定支架； B.单片支架； C.摇摆

How do you go to school? Some students may answer, “By car”. Maybe some others will look at them through green glasses (羡慕地).
You needn’t feel         if you have no cars. It’s true that cars are       . Many people find it hard to think about        life will be like if they have no cars. But now more people know that too many cars bring great       . They make streets too       .
People are trying to stop pollution (污染) from cars. One way is to make        cars. But it        much to make these cars. And more people think about better ways. We can        our lifestyle. A lot of Americans go to work        bike now. Riding bikes is clean and healthy. It helps people get strong. Let’s try together! I hope we can live in a green world with no pollution       .

小题1:	A．bad B．good C．well D．better

小题2:	A．interesting B．important C．difficult D．dangerous

小题3:	A．how B．what C．why D．where

小题4:	A．lessons B．fun C．skills D．problems

小题5:	A．small B．clean C．busy D．modern

小题6:	A．green B．red C．yellow D．white

小题7:	A．takes B．spends C．pays D．costs

小题8:	A．have B．change C．enjoy D．make

小题9:	A．on B．by C．with D．ride

小题10:

A．something B．some days C．some day D．any day