与你分享：普通专升本英语易错知识之连词！

连词按其性质，分为并列连词和从属连词，考点分布在单项选择完形填空中。《英语教学大纲》和《考试大纲》语法项目表中对连词的考查是这样描述的：掌握词汇表中所列连词的用法，要求考生分析句子成分，把握语境和逻辑关系，恰当选择合适连词，使句意通顺，逻辑清楚。连接代词或连接副词用于名词性从句，统称连接词。
考点1；特殊并列连词while/when
例1.I had just stepped out of the bathroom and was busily drying myself with a towel ______ I heard the steps.
A.while B.when C.since D.after
例2.I'd like to study law at university _______ my cousin prefers geography.
A.though B.a sC.while D.for
【解析】B、C作并列连词时，when/while用法较为特殊，二者区别是：while表两相对照；而when表突然在那时，常见于be about to do…when和hardly...when等句型中
与你分享：普通专升本英语易错知识之连词！
考点2:表示原因的连词for/because/as/since
例3.He found it increasingly difficult to read，_____ his eyesight was beginning to fail.
A.and B.for C.but D.or
例4.Jenny was very sad over the loss of the photos she had shot at Canada，______ this was a memory she especially treasured.
A.as B.if C.when D.where
例5.Parents should take seriously their children's requests for sunglasses ________ eye protection is necessary in sunny weather.
A.because B.though C.unless D.if
例6._____ everybody knows about it，I don't want to talk any more.
A.For B.Even C.Since D.However
【解析】B、C引导原因连词，as/because/since/for的区别是：because语势最强，用来说明人所未知的原因，回答why提出的问题，可置于强调句中且其前可加修饰语；since是双方都知晓原因或经过分析而得之的原因，语气次之；for是并列连词，前用逗号隔开，表逻辑推理或补充说明；as语气最弱，原因是显而易见的或已为人们所知，即已知原因，所引导的分句可置于句首。
考点3;并列连词but/yet/though
例7.Excuse me for breaking in，______ I have some news for you.
A.so B.and C.but D.yet
【解析】C but和yet是连词，可等同使用，但也有区别。yet与and连用，构成and yet，但but却无此用法；在“Excuse me/I'm sorry/I hope you don't mind…but”中，只用but，不用yet。因为在表示对照或对立时，but较为轻松自然；而yet却较为强烈，常出人意料；though作并列连词时，只能引导分句且其前须加逗号?例：I'll try to come，though I don't think I shall manage it.
考点4：引导名词性从句的从属连词that/whether/if
例8.The traditional view is ______ we sleep because our brain is“programmed”to make us do so.
A.when B.why C.whether D.that
例9.We haven't settled the question of _____ it is necessary for him to study abroad.
A.if B.where C.whether D.that
[解析]引导名词性从句的从属连词that与whether的区别是：句子成分完整且表意确定时选用that连接，句意不确定时选用whether/if连接；借助it，将真正主语或宾语后置，构成“It…that”句型，但whether/if不可；下列情形用whether不用if：与or not连用，中间无其他词隔开；作介词宾语；在主语从句、表语从句和同位语从句中