Hundreds of years ago, life was much harder than it is today．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 rivers 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’s 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 over a city．This kind of quilt is called smog．
Many countries are making rules to flight 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 do not throw them on the ground，there will be less pollution．
Rules are not enough．Every person must help to fight pollution．
【小題1】Hundreds of years ago．life was much harder than it is today because        ．

Hundreds of years ago, life was much harder than it is today．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 rivers 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’s 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 over a city．This kind of quilt is called smog．

Many countries are making rules to flight 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 do not throw them on the ground，there will be less pollution．

Rules are not enough．Every person must help to fight pollution．

1.Hundreds of years ago．life was much harder than it is today because        ．

2.The most serious kind of pollution is         ．

3.From the passage we know that       ．

Hundreds of years ago, life was much harder than it is today．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 rivers and lakes dirty． It kills our fish and polluted our drinking water． Noise pollution makes us talk louder and become angry more easily．Air pollution is the most serious kind of pollution．It’s bad for all the living things in the world．

Cars, planes and factories all polluted air so thick that it is like a quilt （被子）over a city．This kind of quilt is called smog（煙霧）．

Many countries are making rules to fight against pollution．Factories must now clean their water before it flows（流走）away, they mustn’t put dirty smoke into the air．

We need to do many other things．We can put waste things in the dustbin（垃圾桶）and not throw（扔） it 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 against pollution．

（   ）1． Hundreds of years ago, life was much harder than it is today because

A． there weren’t any modern machines          B． there was no modern medicine

C． there were not many people                      D． both A and B

（   ）2． What’s the biggest problem in today’s life?

A． Water pollution   B．Air pollution         C．Noise                 D．Pollution

（   ）3． The most serious kind of pollution is     ．

A． noise pollution      B． air pollution   C． water pollution     D．a(chǎn)ll of the above

（   ）4． Factories must clean their water     away．

A． before they flow  B． when they flow    C． after it flows      D．before it flows

（   ）5． From the passage we know that ．

A． a few years ago, there was no smog at all

B． today people don’t have to talk to each other in a loud voice

C． we can drink water from the polluted rivers and lakes

D． people are making rules in order to fight against pollution

Hundreds of years ago, life was much harder than it is today. 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 rivers and lakes dirty. It killed our fish and polluted our drinking water. Noise pollution makes us talk louder and become angry more easily. Air pollution is the most serious kind of pollution. It’s bad for all living things in the world.

Cars, planes and factories all polluted air so thick that it is like a quilt over a city. This kind of quilt is called smog（煙霧）.

Many countries are making rules to fight pollution. Now factories must clean their water before it is thrown away, they mustn’t discharge（排放）dirty smoke into the air.

We need to do many other things. For example, we can put waste things in the dustbin and not throw it 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．Hundreds of years ago, life was much harder than it is today because _______.

A．there were not any modern machines

B．there was no modern medicine

C． both A and B

D．they can not use modern machines

2．What is one of the biggest problems in today’s life?

A．Air pollution        B．Noise.                C．Pollution.             D．Car

3．The most serious kind of pollution is ________.

A．noise pollution           　              B．a(chǎn)ir pollution

C．water pollution                           D．car pollution

4．Factories must clean their water ________.

A．when it is thrown away                       B．before it is thrown away

C．a(chǎn)fter it is thrown away                        D．It isn’t mentioned.

5．From the passage we know that ________.

A．we can drink from the polluted rivers and lakes.

B．today people don’t have to talk to each other in a loud voice

C．people are making rules in order to fight pollution.

D．pollution is not important.

　　Hundreds of years ago, life was much harder than it is today. People didn't have modern machines. There was no modern medicine, either.

　　Life today has brought new problems. The biggest one is pollution. Water pollution has made our rivers and lakes dirty. It kills our fish and pollutes our drinking water. Noise pollution makes us talk louder and becomes angry more easily. Air pollution is the most serious kind of pollution. It's bad to all living things in the world.

　　Cars, planes and factories all pollute our air every day. Sometimes the polluted sir is so thick that it is like a quilt over a city. This kind of quilt is covered smog (霧) .

　　Many countries are making rules to fight pollution. Factories must now clean their water before it is poured out; they mustn't blow dirty gases into the air.

　　We need to do many other things. We can put waste things in the dustbin and do not throw it 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) Hundreds of years ago, life was much harder than it is today because ________.

[　　]

A．there were not any modern machines

B．there was no modern machine

C．A or B

D．there are not many people

(2) What is the biggest problem in today's life?

[　　]

(3) The most serious kind of pollution is ________.

[　　]

(4) Factories must clean their water ________.

[　　]

A．before they are thrown away

B．what they are thrown away

C．a(chǎn)fter it is poured out

D．before it is poured out

(5) From the passage we know that ________.

[　　]

A．a(chǎn) few years ago there was no smog at all

B．today people don't have to talk to each other loudly

C．we can drink water from the polluted rivers and lakes

D．people are making rules to fight pollution