今天小编为大家分享的是考研英语1991-2019年完形填空零频/极低频当选词！，希望通过这篇文章的学习对你们有所帮助，下面跟随小编一起学习吧。
一、零频当选逻辑关系短语
以下逻辑关系短语在完形选项中还从未当选过(注：“从未当选过”并不代表以后不会当选，只是当选的可能性极低)：
unless(1991至2019，出现过12次，当选0次)
since(1991至2019，出现过10次，当选0次)(2019年真题中出现，未当选)
therefore(1991至2019，出现过10次，当选0次)
except/except for/except that/exceptional/with the exception(1991至2019，出现过8次，当选0次)
provided/providing/provided that(1991至2019，出现过5次，当选0次)
meanwhile(1991至2019，出现过5次，当选0次)
if only(1991至2019，出现过4次，当选0次)
lest(1991至2019，出现过4次，当选0次)
any家族(anything/anyway)(1991至2019，出现过3次，当选0次)
supposing/suppose(1991至2019，出现过3次，当选0次)
now that(1991至2019，出现过3次，当选0次)
hence(1991至2019，出现过3次，当选0次)
furthermore(1991至2019，出现过3次，当选0次)
likewise(1991至2019，出现过2次，当选0次)
第二，低频当选逻辑关系短语
以下逻辑关系短语在完形选项中当选过但极低：
for(1991至2019，出现过22次，当选3次，是2004/2009/2018年当选)
with(1991至2019，出现过17次，当选3次，是1992/1999/2001年当选)
by(1991至2019，出现过13次，当选3次，是1997/1998/2010年当选)
if(1991至2019，出现过11次，当选3次，是2009/2013/2019年当选)(2019既然当选，2020若出现应该不会再当选)
so(1991至2019，出现过10次，当选2次，是2012/2019年当选)(2019既然当选，2020若出现应该不会再当选)
until(1991至2019，出现过8次，当选2次，是2002/2016年当选)(2019年真题中出现，未当选)
instead/instead of(1991至2019，出现过7次，当选1次，是2000年“instead of”当选)(2019真题中出现，未当选)
moreover(1991至2019，出现过6次，当选1次，是1994年当选)
though(1991至2019，出现过5次，当选1次，是2005年当选)(2019年真题中出现，未当选)
like(1991至2019，出现过5次，当选1次，是1993年当选)
thus(1991至2019，出现过5次，当选1次，是1992年当选)
above all(1991至2019，出现过4次，当选1次，是2009年当选)(2019年真题中出现，未当选)
in contrast(1991至2019，出现过4次，当选1次，是2018年当选)
otherwise(1991至2019，出现过4次，当选1次，是2013年当选)
only if(1991至2019，出现过3次，当选1次，是2000年当选)
nonetheless(1991至2019，出现过3次，当选1次，是1996年当选)
nevertheless(1991至2019，出现过3次，当选1次，是1996年当选)
besides(1991至2019，出现过3次，当选1次，是2017年当选)(2019年真题中出现，未当选)
真题示例：
2018英语(一)第4题
(4), why do we trust at all? Well, because it feels good.
[A].Therefore
[B].Then
[C].Instead
[D].Again
[解析]：“therefore”是零频当选短语，“instead”是低频当选短语，排除AC，答案在BD中选。再根据简单原则，越简单的词越像答案，所以可优先考虑B为答案(答案选B)
2018英语(一)第5题
(5) people place their trust in an individual or an institution, their brains release oxytocin, a hormone that (6) pleasurable feelings and triggers the herding instinct that prompts humans to (7) with one another.
[A].Until
[B].Unless
[C].Although
[D].When
[解析]：“unless”是零频当选短语，“until”是低频当选短语，排除AB，答案在CD中选。再根据简单原则，越简单的词越像答案，所以可优先考虑D为答案(答案选D)
2017英语(一)第18题
Some experts (17) the stress-reducing , health-related benefits of hugging to the release of oxytocin, often called “the bonding hormone” (18) it promotes attachment in relationships, including that between mothers and their newborn babies.
[A].unless
[B].because
[C].though
[D].until
[解析]：“unless”是零频当选短语，“though”和“until”都是低频当选短语，排除ACD，答案选B
[注]：“because”是高频当选词。
2017英语(一)第11题
(11) among those who got a cold, the ones who felt greater social support and received more frequent hugs had less severe (12).
[A].Thus
[B].Still
[C].Rather
[D].Even
[解析]：“thus”是低频当选短语，排除A，答案选BCD中选。再根据简单原则，越简单的词越像答案，所以可优先考虑D为答案(答案选D)
2016英语(一)第5题
(5) a spouse has been selected, each family investigates the other to make sure its child is marrying (6) a good family.
[A].Although
[B].Lest
[C].After
[D].Unless
[解析]：“lest”和“unless”都是零频当选短语，排除BD，答案在AC中选。再根据简单原则，越简单的词越像答案，所以可优先考虑C为答案(答案选C)
2015英语(一)第10题
Why this similarity in olfactory genes is difficult to explain, for now. (10), as the team suggests, it draws us (11) similar environments but there is more to it.
[A].Meanwhile
[B].Furthermore
[C].Likewise
[D].Perhaps
[解析]：“meanwhile”、“furthermore”和“likewise”都是零频当选短语，排除ABC，答案选D
2010英语(一)第18题
(18), a comparison with data for weeks when there was no experimentation showed that output always went up on Mondays.
[A].therefore
[B].furthermore
[C].however
[D].meanwhile
[解析]：“therefore”、“furthermore”和“meanwhile”都是零频当选短语，排除ABD，答案选C
[注]：“however”是高频当选词。
2008英语(一)第14题
These facts, (14) have previously been thought unrelated.
[A].moreover
[B].therefore
[C].however
[D].meanwhile
[解析]：“therefore”和“meanwhile”都是零频当选短语，“moreover”是低频当选短语，排除ABD，答案选C
[注]：“however”是高频当选词。
2006英语(一)第1题
The homelessness makes up a growing percentage of American's population. (1) homelessness has reached such proportions that local government can't possibly (2).
[A].indeed
[B].likewise
[C].therefore
[D].furthermore
[解析]：“likewise”、“therefore”和“furthermore”都是零频当选短语，排除BCD，答案选A
2005英语(一)第5题
In fact, (5), we are extremely sensitive to smells, (6) we do not generally realize it.
[A].anyway
[B].though
[C].instead
[D].therefore
[解析]：“anyway”、“instead”和“therefore”都是零频当选短语，排除ACD，答案选B
2004英语(一)第40题

All these conditions tend to increase the probability of a child committing a criminal act, (40) a direct causal relationship has not yet been established.
[A].provided
[B].since
[C].although
[D].supposing
[解析]：“provided”、“since”和“supposing”都是零频当选短语，排除ABD，答案选C
2002英语(一)第31题
...radically changed the process, (31) its impact on the media was not immediately (32).
[A].unless
[B].since
[C].lest
[D].although
[解析]：“unless”、“since”和“lest”都是零频当选短语，排除ABC，答案选D
2019英语(二)第1题
(1), when done too often, this habit can sometimes hurt more than it (2).
[A].Besides
[B].Therefore
[C].Otherwise
[D].However
[解析]：“therefore”是零频当选短语，“besides”和“otherwise”是低频当选短语，排除ABC，答案选D
[注]：“however”是高频当选词。
2019英语(二)第19题

I've also experienced greater success in achieving my specific fitness goals, (19) I'm training according to those goals, not the numbers on a scale.
[A].if
[B].unless
[C].until
[D].because
[解析]：“unless”是零频当选短语，“if”和“until”是低频当选短语，排除ABC，答案选D
[注]：“because”是高频当选词。
2018英语(二)第7题
(7) left alone in the room, the students who did not know which ones would shock them clicked more pens and incurred more shocks than the students who knew what would (8) .
[A].When
[B].If
[C].Though
[D].Unless
[解析]：“unless”是零频当选短语，“if”和“though”是低频当选短语，排除BCD，答案选A
2014英语(二)第10题
Some people with a high BMI are in fact extremely fit, (10) others with a low BMI may be in poor (11).
[A].so
[B].while
[C].since
[D].unless
[解析]：“since”和“unless”都是零频当选短语，“so”是低频当选短语，排除ACD，答案选B
[注]：“while”是高频当选词。