6.A.build　 　　　B. were built 　　　C. are built　 　　　　D. are build

5.A.turn　 　　　　B. become　 　　　C. Changed　 　　　　D. urned

4.A.Any　 　　　　B. many　 　　　　C. Lot of　 　　　　　　D.Much

3.A. far　 　　　　　B. by　 　　　　　C. near　 　　　　　　　D.away

2.A. look for 　　　B. find　 　　　　C. looking for　 　　　　D. finding

1. A . life　 　　　　B. lives　 　　　C. lifes　 　　　　　　D.live

10.A.If　 　　　B. Unless　 　　　C. Though　 　　　D. Although

　　　　　　　　　　　　　　　　 B

No one knows about how or when these people learn about growing food. But when they did, their 　1　 changed, they did not have to 　2　 food any more . They could stay at one place and grow it .

People began to live 　　3　 each other. And so the first village was formed(形成). 　　4　 people came to work in the villages.

When machines appeared, (出现)life in the villages　　 5　　 again . Factories　 6　　 　.　 More and more people lived near the 　　7　 .　 Cities come into being. 　8　 of them grew very big.

Today, some people are moving 　　9　 to small towns or even villages, because there is 　　10　 noise and pollution(污染) in big cities.

9.A.cross　 　　B. to cross　 　　　C. crossing　 　　D. crossed

8.A.other　 　　B. another 　　　C. the other 　　　D. others

7.A. all　 　　　B. both　 　　　　C. either　 　　　　D. neither