中考英語詞語辨析
as/ because/ for/ since
Ⅰ. 這三個(gè)詞都可以用作連詞，表原因、理由 但有區(qū)別：
Ⅱ. as 因?yàn)椤⒓热槐硎镜脑蚧蚶碛墒敲黠@的。語意不如because強(qiáng)。當(dāng)理由是明顯的，或者被認(rèn)為是已知的時(shí)，則以用as 為好。如：
① As he was not well, I decided to go without him.
因?yàn)樗眢w不好，我決定獨(dú)自去了。
② As it was getting very late, we soon turned back.
因?yàn)橐押芡砹耍?我們很快就回來了。
③ As it is raining, youd better take a taxi.
既然在下雨，你最好乘出租車。
Ⅲ. because 因?yàn)楸碇苯佣鞔_的原因或理由。即必然的困果關(guān)系。在這幾個(gè)詞中，它的語意最強(qiáng)。回答以why 引導(dǎo)的特殊疑問句時(shí)，只能用because . 注意：because 不可以與so 連用。如：
① He had to stay at home yesterday because he was ill.
昨天他只得呆在家里，因?yàn)樗×恕?/p>
② I did it because they asked me to do it.
我之所以做這件事，是因?yàn)樗埼易龅摹?/p>
③ ---Ｗhy cant you do it now? --- Because Im too busy.
Ⅳ. since既然比as 較為正式，說明為人所知的原因。語氣比because 稍弱。
① Since light travels faster than sound, we see lightening before we hear the thunder.
因?yàn)楣獗嚷曇魝鞑サ每欤晕覀兿瓤吹介W電，后聽到雷聲。
② Since he cant answer the question, youd better ask someone.
既然他回答不了這個(gè)問題，你最好問別人吧。
③ Since you are busy, Ill do it for you.既然你忙，我替你做吧。
Ⅴ. for 因?yàn)楸碓蚧蚶碛蓵r(shí)，用以說明理由，只是解釋性的。在這幾個(gè)詞中，它的語意最弱。它少用于口語中，也不用于句首。如：
① I asked her to stay to tea, for I had something to tell her.
我請她留下來喝茶，因?yàn)槲矣惺乱嬖V她。
② We must get rid of carelessness, for it often leads to errors.
我們一定克服粗枝大葉的毛病，因?yàn)榇种Υ笕~常常差錯(cuò)。
③ It must have rained, for the road is wet.
一定下雨了，因?yàn)槁肥菨竦摹?/p>
④ I must go now, for my sister is waiting for me.
現(xiàn)在我得走了，我姐姐在等我呢。
［注］：這幾個(gè)詞按語意的強(qiáng)弱來排，其順序?yàn)椋?/p>
becausesince(as)for
as/ because/ for/ since
Ⅰ. 這三個(gè)詞都可以用作連詞，表原因、理由 但有區(qū)別：
Ⅱ. as 因?yàn)椤⒓热槐硎镜脑蚧蚶碛墒敲黠@的。語意不如because強(qiáng)。當(dāng)理由是明顯的，或者被認(rèn)為是已知的時(shí)，則以用as 為好。如：
① As he was not well, I decided to go without him.
因?yàn)樗眢w不好，我決定獨(dú)自去了。
② As it was getting very late, we soon turned back.
因?yàn)橐押芡砹耍?我們很快就回來了。
③ As it is raining, youd better take a taxi.
既然在下雨，你最好乘出租車。
Ⅲ. because 因?yàn)楸碇苯佣鞔_的原因或理由。即必然的困果關(guān)系。在這幾個(gè)詞中，它的語意最強(qiáng)。回答以why 引導(dǎo)的特殊疑問句時(shí)，只能用because . 注意：because 不可以與so 連用。如：
① He had to stay at home yesterday because he was ill.
昨天他只得呆在家里，因?yàn)樗×恕?/p>
② I did it because they asked me to do it.
我之所以做這件事，是因?yàn)樗埼易龅摹?/p>
③ ---Ｗhy cant you do it now? --- Because Im too busy.
Ⅳ. since既然比as 較為正式，說明為人所知的原因。語氣比because 稍弱。
① Since light travels faster than sound, we see lightening before we hear the thunder.
因?yàn)楣獗嚷曇魝鞑サ每欤晕覀兿瓤吹介W電，后聽到雷聲。
② Since he cant answer the question, youd better ask someone.
既然他回答不了這個(gè)問題，你最好問別人吧。
③ Since you are busy, Ill do it for you.既然你忙，我替你做吧。
Ⅴ. for 因?yàn)楸碓蚧蚶碛蓵r(shí)，用以說明理由，只是解釋性的。在這幾個(gè)詞中，它的語意最弱。它少用于口語中，也不用于句首。如：
① I asked her to stay to tea, for I had something to tell her.
我請她留下來喝茶，因?yàn)槲矣惺乱嬖V她。
② We must get rid of carelessness, for it often leads to errors.
我們一定克服粗枝大葉的毛病，因?yàn)榇种Υ笕~常常差錯(cuò)。
③ It must have rained, for the road is wet.
一定下雨了，因?yàn)槁肥菨竦摹?/p>
④ I must go now, for my sister is waiting for me.
現(xiàn)在我得走了，我姐姐在等我呢。
［注］：這幾個(gè)詞按語意的強(qiáng)弱來排，其順序?yàn)椋?/p>
becausesince(as)for
