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ause of, owing to due to由于 ,作表語或狀語 ,一般不直于句首。 thanks to幸虧 ,多虧 ,由于 ,其后多是感恩性的內(nèi)容。 because of 因為 ,由于 ,用作狀 語。 owing to 由于 ,作表語或狀語。 Our success is due to our parents and teachers. 我們的成功歸功于我們的父母和老師。 Thanks to your help, we were successful. 多虧有你幫助 ,我們成功了。 The sports meeting has been put off because of the heavy 大雨 ,運動會被延期了。 It was owing to the bad weather that the train was late. 由于天氣惡劣 ,列車晚點了。 ◆ 4. witness 。證人 。證據(jù) 。見證 知識探究: I will bear witness to his honesty. (= I will be in witness of his honesty.)我會為他的誠實作證。 He witnessed the accident on the highway. 他目睹了高速公路上的那場事故。 She witnessed to having seen the robbery take place. 她作證親眼看見了那起搶劫案發(fā)生。 題練落實: D) 1. After the explosion, the police did a lot of work to find out some clues from the _____. A. lookerson B. viewers C. people D. witnesses A) 2. Many people ______ the car accident, so it was not difficult to investigate. A. witnessed B. harnessed C. swallowed D. drugged C) 3. The defence lawyer was questioning the old man who was one of the _____ of the murder mitted last month. A. observers B. viewers C. witnesses D. audiences B) 4. The successful launch of Shenzhou Ⅶ is a powerful ____ to our country39。s achievements, which has ____ our country39。s status in the world. A. evidence。 submitted B. witness。 promoted C. abundance。 increased D. insurance。 improved 解析:句意:神州七號的成功發(fā)射是我國成就的強有力的見證 ,這也提升了我國在世界上的地位。 witness to sth.“?的證明 ,?的目擊者 ,?的見證人”;promote“促進 ,提升”。 evidence“證據(jù) ,證物”; abundance“豐富 ,充?!?;insurance“保險 ,保險單 ,保險業(yè)”; submit“ (使 )服從 ,(使 )順從”。 ◆ 5. assume vt. 假設(shè) ,設(shè)想;以為 知識探究: It is generally assumed that (普遍認(rèn)為 ) stress is caused by too much work. It is reasonab1e to assume that the economy will continue to improve. 認(rèn)為經(jīng)濟將繼續(xù)好轉(zhuǎn)是有道理的。 題練落實: C) 1. I hope to go to college next year, always _________ that I pass my exams. A. assume B. to assume C. assuming D. assumed ◆ 6. occur vi. 發(fā)生 知識探究: The accident occurred at five o39。clock. 事故發(fā)生在 5點鐘。 An idea occurred to me. 我想到一個主意。 It occurred to me that I would have a try. 我突然有