EXERCISE 16

    From the very beginning,water has furnished man with a source of food and a highway to travel.The first civilizations arose __1_ water was dominant element in the environment,a challenge__2_ man's ingenuity.The Egyptians invented the 365-day calendar __3_ the Nile's annual flooding.The Babylonians,_4__ were among the most famous law-makers in ancient times,invented laws_5__ water usage.Water inspired the Chinese to build a 1000__6_ canal,a complex system __7_,after 2500 years,remains partically __8_ and still commands the astonishment of engineers.But _9__ never found complete solutions_10__ their water problem .The Yellow River is also known _11__ "China's sorrow".It is so unpredictable and dangerous __12_ in a single flood it has caused a million _13__.Floods slowed the great _14__ of the Indus River Valleys,and innumerable damage ruined _15__ of its land.Today,water dominates man _16__ it always has done.Its presence continues to __17_ the location of his homes and cities;its violent variability can _18__ man or his herds or his crops;its routes links him __19_ his fellows;its immense value may __20_ to already dangerous political conflicts.There are many examples of this in our own time.

1)    A  where         B the place        C when      D in the place

2)    A  with          B as              C to         D on

3)    A  in regard to    B in response to     C in case     D in spite of

4)    A  they          B /                C that       D who

5)    A  regulates      B regulate          C regulated   D regulating

6)    A  miles         B mile            C mile's       D miles'

7)    A  who          B in which         C which      D by which

8)    A  in use        B for use           C by use      D on use

9)    A  ancient      B the ancients        C ancients     D ancients people

10)   A  for          B of               C to          D on

11)   A  for          B by               C to          D as

12)   A  that         B which            C because     D as

13)   A  people      B deaths            C damages     D ruins

14)   A  influence    B effect            C society       D civilization

15)   A  many       B lot               C much        D a lots

16)   A  for         B as               C because       D whereas

17)   A  effect       B control           C lead          D influence

18)   A  cause       B violate           C kill           D damage

19)   A  by          B on              C at            D to

20)   A  increase     B add             C solve          D intensify

答案:
1--5ACBDD
6--10DCABC
11--15DABDC
16--20BDCDB