because 和 so 不能同时出现在一个句子中的疑惑
If a friend says that his arms and legs are weak, we know that it is his own fault.
But if he tells us that he has a poor memory, many of us think that his parents may be blamed, and few of us know that it is just his own fault.
Have you ever found that some people can’t read or write but usually they have better memories ?
This is because they cannot read or write and they have to remember days, songs and stories, so their memory is the whole time being exercised.
请教专家：
1）上面句式出现的This is because...,so...这种正确吗？不是说because 和 so 不能同时出现在一个句子中吗？
2）may be blamed, 还是应该是 may be to blame呢？哪个正确？ is the whole time being exercised 中，是否应该是is the whole time to exercise 呢？不然怎么分析理解is the whole time being exercised ？
谢谢老师。
最佳答案 2022-04-09 15:31
1 because引导时间状语从句，主句不可以用并列连词so。但你的句子中，并列连词并列的是 This is because...和their memory is...这二个主句。句子没有错误，是你理解错误。
2 Sb is to blame. 这是反射不定式结构。也可以说 Sb is to be blamed。 用普通不定式结构。以前者更为常见。也可以直接说Sb is blamed被动语态。 如果使用情态动词，就要用被动语态，sb may be blamed. 不能说 sb may be to blame.
3 their memory is the whole time being exercised.= their memory is being exercised the whole time. 这个句子的谓语为现在进行时被动语态，只不过时间状语插入主动is和现在分词之间了。阅读文章不能只看形式，要注意句子表达的逻辑意义，这样才不会出现理解错误。
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