What does the author mean by "It just means they have to use a scalpel rather than an invisible mallet" (The last line, Paragraph 5)？
A. The gang members should be given a get-tough attitude in the long run.
B. The targeted gang members rather than all of them should be given a get-tough treatment.
C. A scalpel can cut off the tumors of the society while the invisible mallet fails to.
D. A scalpel is more powerful than the invisible mallet.
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In Paraaraph Four, "taper off" means____.
A. cut up
B. stop
C. speed up
D. slow down
In the first paragraph, "took a turn at the crank" could be paraphrased_____.
A. helped to mix the ice cream
B. ate some ice cream
C. helped break up the ice with a hammer
D. protected the ice cream from children
In the author's view,many endangered languages are_____.
A. remarkable well-kept in this modern world
B. exceptionally powerful tools of communication
C. quite possible to be revived instead of dying out
D. a unique way of bringing different groups together
The word "it" (Line 3, Paragraph 2) most probably refers to_____.
A. the lack of stable communities
B. the breakdown of informal information channels
C. the increased mobility of families
D. the growing number of people moving from place to place
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