以 “B” 开头的核心词汇
Bewilder  n. 迷惑,弄糊涂
Many tourists were       by the city’s complicated traffic system.(98.6.48)
A  degraded   B  bewildered   C  evoked  D  diverted
When the farmers visited the city for the first time ,they were     by its complicated system .
A  evoked    B   bewildered   C  diverted   D  undermined
Barren .a.  贫瘠的,不毛的
Many people think of desert as       regions ,but numerous species of plants and animals have adapted to life there .(99.6.70)
A  virgin    B  barren   C  void   D  wretched
Within ten years they have turned the     hill into green woods .(03.9.49)来源：www.examda.com
A  vacant    B weird  C  barren  D  wasteful
Blunder n 错误,大错
1. I think I committed a       in asking her because she seemed very upset by my question..(99.1.52)
A   blunder    B  revenge    C reproach   D  scandal
Budget  n  预算
The education      for the coming year is about $4 billion ,which is much more than what people expected.(97.1.52)
A  allowance   B  reservation  C  budget   D   finance
Breed .v . 培育,养育
It is true that      a wild plant into a major food crop such as wheat requires much research time . (98.1.53)
A   multiplying    B  breeding  C  magnifying   D  generating
Brittle a. 易碎的
Steel is not as     as cast iron ; it does not break easily.(03.9.47)
A  elastic   B  brittle   C  adaptable  D  flexible
Baffle  v. 使困惑,难住来源：www.examda.com
I was completely      by one of the exam questions.
A  pleased   B  baffled   C  bewildered  D  dizzy
One of the examination questions     me completely and I couldn’t answer it .(04.1.48)
A  baffled    B  mingled   C  provoked   D  diverted
Budget . 预算
The government has devoted a large slice of national       to agriculture than most other countries .
A  resource   B  potential   C budget   D   economy
The education       for the coming year is about $4 billion ,which is  much more than what we expected .
A  allowance  B  reservation   C  budget  D  finance  (97.1.52)
Bald a.  秃头的
He tried to hide his      patch by sweeping his hair over to one side .来源：www.examda.com
A  barren   B  bare   C  bald   D  bleak
Boom n.  增长
The post-World War II baby      resulted in a 43 percent increase in the number of teenagers in the 1960s. (04.6.64)
A  boost   B  boom   C  production  D  prosperity 来源：www.examda.com
Breakthrough  n  突破
While a full understanding of what causes the disease may be several years away,      leading to a successful treatment could come sooner.(02.1.49)
A  a distinction   B  a breakthrough  C  an identification  D  an interpretation