71. ______ knowledge comes from practice is known to all.
A.What
B.Where
C.If
D.That
72. ______ we understand things has a lot to do with what we feel.
A.Where
B.How
C.Why
D.When
73. ______ I was trying to do is to persuade my brother to give up smoking.
A.That
B.Now
C.What
D.Which
74. It remains to be seen ______ this plan is practical enough to keep the project going.
A.whether
B.how
C.where
D.when
75. ______ was most important to her, she told me, was the happiness of her whole family.
A.It
B.What
C.That
D.Which
【答案仅供参考】
71.【答案】D。解析:句子出现两个动词,需要一个连接词,“______ knowledge comes from practice”为从句部分,从句位于系动词之前,作主语,所以该从句为主语从句,从句不缺少成分,句意完整,需要填从属连词that,翻译为我们都知道知识来源于实践,故选D。
72.【答案】B。解析:考查主语从句。句意:我们如何理解事情与我们的感受有很大关系。本句考查主语从句,根据逻辑意义应该表示方式,故用how。
73.【答案】C。解析:题干中,“______ I was trying to do”为主语从句,故从句需一个连接词,排除B. 从句中空格上的连接词做do的宾语,故排除A。CD按句意选what,本句意为:我正在努力做的事情就是说服我哥哥戒烟。
74.【答案】A。解析:主语从句,it 在句中是形式主语,主语从句是空后whether引导的从句,A。表示是否,符合句意。
75.【答案】B。解析:考查主语从句。句子中间的she told me 可以作为插入语来理解,也就是说可以先去掉而不会影响答案的选择。句意:她告诉我,对她而言最重要的是她的家庭。故选择B。
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