八、定语从句和名词性从句
1．The reason ________ she explained to us for her absence from the party sounded reasonable。
A．why  B．that  C．what  D．because
答案　B　[句意：她向我们解释的未能参加聚会的原因听起来有道理。先行词是the reason，定语从句中explained缺宾语，故用that引导。why在定语从句中作原因状语;what，because不引导定语从句。]
2．I refuse to accept the blame for something ________ was someone else’s fault。
A．who  B．that  C．as  D．what
答案　B　[句意:我拒绝接受由于别人的过错而导致的对我的责备。所选项引导定语从句并在从句中作主语；先行词是指物的不定代词something，故关系代词用that。who的先行词为指人的名词或代词；as引导限制性定语从句时，前面一般有the same，such等;what不能引导定语从句.]
3．The single most important factor ________ contributes to success is what you do every single day.
A．what                  B．which 
C．/                      D．that
答案　D　［句意：促使成功的唯一最重要的因素就是你每一天所做的事情.定语从句缺少指事物的主语，且先行词前有最高级修饰，故用that不用which；that在从句中作主语,不能省略。what不能引导定语从句。]
weight是什么词性
4．She was educated at Beijing University，________ she went on to have her advanced study abroad.
A．after that                  B．from that
C．from which              D．after which
答案　D　[句意为“她从北大毕业之后去了国外进修"。after which中which指代整个句子。]
5．He was educated at a local grammar school，________ he went on to Cambridge.
A．from which          B．after that
C．after which              D．from this
答案　C　［从句子的逻辑关系来分析，他在当地的语法学校接受教育，而此后就去了剑桥大学.］
6．The journey around the world took the old sailor nine months，________ the sailing time was 226 days。
A．of which              B．during which
C．from which          D．for which
答案　A　[which指代先行词nine months,226天是属于9个月的，表示所属关系用介词of。]
7．If you are feeling very tired and sick of fat food，that is ________ you are supposed to go to the hospital for a medical examination。
A．why  B．when  C．which  D．who
答案　B　［考查表语从句.句意:当你感到疲劳而且闻到油腻的食物会恶心，这个时候你最好去医院做个检查.从句中不缺少主、宾、表语，故可以排除C、D两项；why表示原因;when表示时间，根据语境判断表示时间。]
8．-Hi,Peter.You seem to have gained a lot of weight.
—Well，good food，not enough exercise，that's ________ I got fat。
A．how  B．when  C．what  D．whether
答案　A　［考查表语从句。句意:“彼得，你好像是胖了很多.”“是啊，吃的不错，却没有足够的锻炼。我就是这样变胖的。”从句中不缺主、宾、表语.选择连接副词。how符合语境。]
9．As is recorded in history，silkworms were first raised by a woman in ________ is today's Hebei Province。
A．here                  B．the place
C．which                  D．what
答案　D　[考查宾语从句。句意：据历史记载，最早养蚕的人在今天的河北省。what引导介词in的宾语从句,在从句中作主语,相当于the place that。从句中缺少主语，选择连接代词，which在宾语从句中作定语.］
10．Having checked the doors were closed，and ________ all the lights were off，the boy opened the door to his bedroom.
A．why  B．that  C．when  D．where
答案　B　［本题考查宾语从句的引导词，根据and可判断all the lights were off，仍然是check的宾语从句，再根据句意只有that符合。]
11．In my opinion，life in the twenty.first century is much easier than ________.
A．that used to be                  B．it is used to
C．it was used to                  D．it used to be

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