[单项选择]The greatest obstacle to mechanization is the fear in underdeveloped countries （　） the workers who are displaced by machines would not find work elsewhere.
A. that
B. where
C. as
D. for

[单项选择]

Text 3
The full influence of mechanization began shortly after 1850, when a variety of machines came rapidly into use. The introduction of these machines frequently created rebellions by workers who were fearful that the machines would rob them of their work. Patrick Bell, in Scotland, and Cyrus McCormick, in United States, produced threshing machines. Improve- meats were made in plows to compensate for different soil types. Stream power came into use in 1860s on large farms. Hay rakes, hay-loaders, and various special harvesting machines were produced, Milking machines appeared. The internal-combustion engine run by gasoline became the chief power source for the farm.
In time, the number of certain farm machines that came into use skyrocketed and changed the nature of fanning. Be-tween 1940 and 1960, for example, 12 million horses and mules gave way to 5 million tractors. Tractors offer many. features that are attractive to farmers. There are, for example,
A. became various
B. was updated
C. increased rapidly
D. remained the same

[单项选择]OBSTACLE :IMPEDE ::


A. diary: reminisce
B. blandishment: coax
C. plan: economize
D. request: imperil
E. (E) drama: perform

[单项选择]"The only thing we have to fear is fear itself" meant that ______.

[单项选择]Who said "The only thing we have to fear is fear itself"


A. Abraham Lincoln.
B. Winston Churchill.
C. JohnF. Kennedy.
D. FranklinD. Roosevelt.

[单项选择]Because of a recent obstacle in production, sales have dropped and accordingly profits have ______ .
A. declined
B. increased
C. broken
D. maintained

[单项选择]She stood there trembling with fear.
A. jumping
B. crying
C. swaying
D. shaking