Because you are dull,so i cannot play with you,引导的句子中,you是主语,are是谓语(系),dull是表语,because of则是短语介词,后接名词,或者名词性短语。
比如:She doesn't go to school because she is ill.
她没来上学因为她生病了。
在这句话中。she is ill就是从句。所以because后面就是接从句。而再来看because of。
because of:后加代词/名词/动词的ing形式。
还是拿刚才那句话来比较。用because of来代替后。就是:
She doesn't go to school because of her illness.
同样的一个意思。接连的却不同。
her illness是名词。
这就可以说明。because of后接代词/名词/动词的ing形式。
conj.因为;因为,由于。
例句:We have had to raise our prices because of rising costs.
因为成本日益上涨,我们不得不提高价格。
1、She found it difficult to get on with her, possibly because of the difference in their ages.
她觉得很难与她相处,这可能是因为她们年龄上的差距。
2、His school work is suffering because of family problems.
由于家庭问题,他的学业日渐退步。
3、They are here because of us.
他们是因为我们来这里的。