本文目录
定语从句选择题
1.A
2.B
3.C
4.C
5.C
6.C
7.A
8.D
9.A
10.C
比较：because, since, as和for
1） because语势最强，用来说明人所不知的原因，回答why提出的问题，是句子中的重要部分，常放在句末，不能用其它三个替换。逗号可加可不加。
You can trust those products because the quality never changes.
I haven”t been to the cinema lately, because I am too busy.
I didn”t go, because I was afraid.
2）当原因是显而易见的或已为人们所知，就用as或 since。since稍正式一些。
Since /As the weather is so bad, we have to delay our journey.
3） 由because引导的从句如果放在句末，且前面有逗 号，则可以用for来代替。但如果不是说明直接原因，而是多种情况加以推断，就只能用for。
He is absent today, because / for he is ill.
He must be ill, for he is absent today.
4）当because引导的从句与否定的主句连用，而主句又位于句首时，之前不用逗号，因为主句动词否定的是其后的全部内容。为了突出because从句，because 前常加上副词，如：just, only, simply, chiefly等。在这种情况下，常常会形成否定的转移。如果是在口语中，在because前要有一个停顿（逗号），才能表示出否定没有转到because从句中。如：
You should not despise a man just because he is poorly dressed.
She is not marrying Bill, because he is poor.
希望可以帮你！
now that的用法总结
now that 属于从属连词,用来引导条件状语从句.
如:Now that your son is well again,you no longer have anything to worry about.
你儿子已经痊愈,你没有担心的事了.
__that your son is well againyou no longer have anything to worry about.
B
again这个单词是什么
again的意思是再，又，重新，一般放在句子的末尾使用，例如：He is talking again.
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