其他答案(2)原因狀語從句\x0d要點:由連詞because,since,as引導(dǎo),也可由for,now that 等詞引導(dǎo)\x0d1.I didn’t go to school yesterday because I was ill.\x0d我昨天沒去上學(xué),因為我生病了.\x0d2.Since everybody is here,let’s begin our meeting.\x0d既然大家都來了,讓我們開始開會吧.\x0d3.As you are in poor health,you should not stay up late.\x0d既然你身體不好,你就不該熬夜.\x0d4.I asked her to stay to tea,for I had something to tell her.\x0d我請她留下來喝茶,因為我有事要告訴她.\x0d.難點——because ,since ,as ,for,辨析\x0d1） because語勢最強(qiáng),用來說明人所不知的原因,回答why提出的問題.當(dāng)原因是顯而易見的或已為人們所知,就用as或 since.\x0dI didn’t go,because I was afraid.\x0dSince /As the weather is so bad,we have to delay our journey.\x0d2） 由because引導(dǎo)的從句如果放在句末,且前面有逗 號,則可以用for來代替.