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1、同步语法讲解表语从句表语从句放在连系动词的后面,充当复合句的表语,一般的结构是:主语 +连系动词 + 表语从句。可以连接表语从句的连系动词有:be, seem, look, appear, sound, taste, feel, remain等。引导表语从句的词主要有:1. 连词that, whether, as if, as though。它们在从句中不担任句子成分,只起连接作用。that无词义, whether意为“是否”,as if / as though意为“仿佛,好像”。例如:The question is whether it is worth doing 问题在于这件事是否值得做
2、。It looks as if it is going to snow天看上去像要下雪。2. 连接代词who, what, which。它们在从句中充当主语、宾语、定语等。例如:The problem is wholl be in charge of the class问题是谁将负责这个班。He is not what he used to be他不是原来的样子了。3. 连接副词when, where, how, why, because。它们在从句中充当时间状语、地点状语、方式状语、原因状语。例如:That is because it rains often these days 那是由于这些天经常下雨。The question is how we can learn English well问题是我们怎样才能学好英语。资