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6)They have made another wonderful discovery, ______ of great importance to science. A. which I think is 解题思路:英语中的连接词一般都是放在从句的最前面,据此,可以排除B、D选项;A、C的区分点是"it", 想一下本节的第一题,就能正确选择答案A了。此类题目中,I think应理解为"插入语",要熟悉这种形式, 又如: He is the man ______ I suppose is capable of finishing this task. 该题应填who而不是whom (在从句中)当状语时:关系副词where及when where : 当先行名词在从句中当"地点状语"时,用关系副词where连接 例如: The crime rate rises in cities where the unemployment rate increases. (失业率高的城市犯罪率也高。) 句中的where = in cities, 表示行为发生的地点。 这里的要点是能否区分是用that (which) 还是用 where, 即:是做"主语、宾表语",还是做"地点状语",例如: I love the small town that we visited last week. 句中"town"做动词"visited"的宾语,即"参观过的小镇",故用that连接。 I love the small town where I lived during my childhood. 句中"town" 是动词"lived"的地点,即"童年时住过的小镇",故用where. 这也是定语从句的一个考点。 when : 当先行名词在从句中当"时间状语"时,用关系副词when连接, 例如: July is the month when we have a lot of rain. (七月是多雨的月份。) 注意"when"定语从句后推的现象,例如: I think (that) the day will finally come when air pollution can be put under control. (我认为空气污染得以控制的一天最终会来到。) 放在主句后面作非限制定语从句时(前面一般加","号),"when"一般译为"此时","那时", 例如: The meeting will be put off until next month, when we will have made all the preparations. (会议将推迟到下月,那时一切就准备就绪了。) 另一个关系副词是why,由于它固定与the reason搭配, 即: the reason why,不难理解,一般也不作为考试的重点。例如: This is the reason why the electronic computer cannot entirely1 replace man. 这就是(为什么)电子计算机不能完全代替人的原因。 whose (= of which / whom):做先行词(不管是人还是物)的定语,汉语为"…的",不要考虑是否是限制性或非限制性定语从句, 例如: Pay attention to that boy whose temperature is very high. (理论上也可以写成:Pay attention to that boy the temperature of whom is very high. 注意那个男孩,他的体温很高。(非限制性) / 注意那个体温很高的男孩。(限制性) 介词 + which (whom) 先看两个句子: This is the house. He has lived in the house for over 30 years. 变为↓定语从句 This is the house in which he has lived for over 30 years. 上述句子中,先行词在从句中充当介词宾语,形成"介词 + which / whom"的形式,考试时要求作出1)要不要介词;2)若要,使用什么介词的判断。由于英语中介词搭配多为习惯用法,没有多少规律可循,因此这是定语从句考试的一个难点。 记住四个字:瞻前顾后 瞻前:先看看先行词一般与什么介词搭配,例如: There are occasions _____ which joking is not permissible2. → Joking is not permissible _____ (certain) occasions. 常与occasion搭配的介词是什么?on, 即: Joking is not permissible on (certain) occasions. (有的场合是不容许开玩笑的。) ↓ There are occasions on which joking is not permissible. 顾后:看看谓语动词常与什么介词搭配,例如: This car, ____ which I paid a lot of money, is now out of date. → I paid a lot of money ______ this car. Pay (money) for something 是一个固定的搭配,因此应填介词 "for" 当A、B、C、D中出现 " 介词 + which / whom" 选项时,而你又确实看不懂时,应倾向于选择" 介词 + which / whom"的形式,例如: The two elements _____ water is made are the gases oxygen and hydrogen. A. that 倾向选择C、D;正确答案D,"be made of "(由…组成): The two elements are gases (oxygen and hydrogen). Water is made of the two elements. 两个句子一合并,便是该句选择 点击收听单词发音
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