Hundreds of years ago, life was　 1　 than 　2　 today. People didn’t have modern machines. There 　3 　modern medicine, 　4 　.

Life today 　5 　new　 problems. One of the biggest is pollution (污染). Water pollution has 　6 　our rivers and lakes dirty. It kills our fish and affects (影响) our drinking water. Noise pollution makes us 　7　 louder and 　8　 . Air pollution is the most serious kind of pollution. It affects　 9 　living thing in the world.

　Cars, planes and factories all pollute (污染) our air every day. Sometimes the pollution is so　 10 　that it is like a quilt (被状物)over a city. This kind of quilt is called smog. (烟雾)

1. A.more hard　　 B.more harder　　　 C.much harder　 D.much more harder

2. A.they are　　 B.they were　　　　 C.it was　　　 D.it is

3. A.were not　　　 B.was no　　　　　　 C.were　　　　　 D.was

4. A.either　　　 B.too　　　　　　　 C.also　　　　her

5. A.bring　　　　 B.have　　　　　　 C.have got　　 D.has brought

6. A.made　　　　　 B.let　　　　　　　 C.taken　　　　ged

7. A.say　　　　　 B.talk　　　　　　 C.tell　　　　 D.spoke

8. A.feel happy more happily　　　　　 B.get angry much more easier

C.get angry much easier　　　　　　 D.feel and more slowly

9. A.most　　　　　 B.all　　　　　　　 C.one　　　　　 D.every

10. A.thin　　　　　 B.thick　　　　　　 C.hard　　　　 D.light

5. I didn’t finish my work in time because my pen was broken.

　 The　 ____ 　pen stopped　 　______ 　　_____ 　finishing my work in time.

4. Jim had a good journey home.

　 Jim 　______ 　　_____ very much 　____ 　　____　 　_______ home.

3. The jacket cost so little that he bought it.

　 The jacket 　_____ 　　______ 　　_____ 　for him to buy.

2. Tom is taller than John.

　 Jonh is not　 _____　 　　_______ 　　_____　 　Tom.

1. None of the doctors knows about the matter.

　 　_____　 　　_____ know about the matter.

10. Look! A group of policemen ______ (run) into that room.

9. Someone saw him ______ (fall) off the horse just now.

8. The teacher _____ (give) us a lesson when Tom walked into the room.