阅读题,Hundreds of years ago,life,it,than,much,is,harder,today,

阅读题,
Hundreds of years ago,life,it,than,much,is,harder,today,was.People didn’t have modern machines.There was no modern medicine,either.
Life today has brought new problems.One of the biggest is pollution.Water pollution has made our rives and lakes dirty.It kills our fish and pollutes our drinking water.Noise pollution makes us talk louder and become angry more easily.Air pollution is the most serious kind of pollution.It is bad to all living things in the world.
Cars,planes and factories all pollute our air every day.Sometimes the polluted air is so thick that it is like a quilt(被子) over a city.This kind of quilt is called smog(烟雾).
Many countries are making rules to fight pollution.Factories must now clean their water before it is thrown away and they mustn’t blow dirty smoke into the air.
We need to do many other things.We can put waste things in the dustbin and not throw them on the ground.We can go to work by bus or with our friends in the same car.If there are fewer people driving,there will be less pollution.Rules are not enough.Every person must help to fight pollution.
1 将文中划线部分连成句子 ______________________________________________________
2 翻译文中斜体句子.____________________________________________________________
( ) 3 The most serious kind of pollution is __________.
A noise pollution B water pollution C air pollution D A,B &C
( ) 4 Factories must clean their water ________________.
A before they are thrown away B after they are thrown away
C before it is thrown away D while it is thrown away
( ) 5 From the passage we know that _________.
A a few years ago,there was no smog at all.B we can drink water from the polluted rivers and lakes
C people are making rules in order to fight pollution
D today people don’t have to walk to each other in a loud voise