英語專四原因狀語從句考點練習

知之為知之，不知為不知，是知也。以下是小編為大家搜索整理的英語專四原因狀語從句考點練習，希望能給大家帶來幫助!更多精彩內容請及時關注我們應屆畢業生考試網!

引導原因狀語從句的從屬連詞有because(因為), as(由於), since(既然), now(that)(既然), when(既然), seeing (that) (由於，鑑於), considering (that)(考慮到), given (that) (考慮到)等。

　一、引導原因狀語從句的從屬連詞主要的有because,for,in that,for the reason that;as,seeing (that), seeing as;since;now (that); considering (that)等：The woolly shrank because it was washed badly. 毛衣因為洗滌的方法不好而縮水。I can’t get to sleep because of the noise outside. 由於外面聲音嘈雜我睡不着。Since [As] we’ve no money, we can’t buy it. 由於我們沒錢，我們不能購買它。Seeing that it’s raining, we’d better stay indoors. 既然外邊在下雨，我們最好待在室內。Now that you are here, you’d better stay. 你既然來了，最好還是留下吧(既來之，則安之)。【注】除以上提到的大家比較熟悉的引導原因狀語從句的從屬連詞外，when有時也可引導原因狀語從句(when表示“既然”)I won’t tell you when you won’t listen. 既然你不想聽，那我就不告訴你了。

　二、關於not…because結構該結構中的否定詞有時否定主句，有時否定從句，一般要根據句子的意思作出正確或合乎邏輯的理解。若not否定主句，最好在because之前用逗號，否則會引起歧義，如下句在沒有特定上下文時就有兩種解釋：I didn’t go because I was afraid. 我沒有去是因為怕。/ 我不是因為怕才去的`。不過若because之前有just修飾，一般認為not 是否定從句的：You shouldn’t get angry just because some people speak ill of you. 你不要因為有人説你壞話而生氣。

　三、because不能與so連用漢語習慣上説“因為…所以…”，但英語習慣上卻不能將 so與because 連用：因為下雨，所以我們得呆在家裏。正：Because it was raining, we stayed at home. / It was raining, so we stayed at home.誤：Because it was raining, so we stayed at home.

　四、because從句與 because of短語的轉換Because引導的原因狀語從句有時可與because of 短語轉換，because of後加的原因可以為好或壞但最正規的還是because　He can’t come because he is ill. / He can’t come because of his illness. 他因病不能來。I said nothing about it because his wife was there. / I said nothing about it because of his wife’s being there. 因為他妻子在那兒，我對此事隻字未提。比較：because, since, as和for1)　because語勢最強，表示不知道的原因用because，即説話人認為聽話人不知道。因此because從句是全句最重要的部分，通常被放置於主語之後。 當原因是顯而易見的或已為人們所知，就用as或 since。I didn't go, because I was e /As the weather is so bad, we have to delay our journey.2)　for雖然表示原因，但因語氣比because弱得多，是可説可不説的話，只能位於主句之後。這時，for是並列連詞，如果不是因果關係，而是對前面主語內容加以解釋或推斷時，只能用for。He is absent today, because / for he is must be ill, for he is absent today.