2、動詞：cause, result in, result from, follow from, base on, be due to

　　3、介詞或連詞：because, since, for, as, therefore, so, thus, why, with

　　4、副詞：as a result, consequently

　　例 1 ：四級2002年6月39題：

　　39. People were given physical fitness tests in order to find out ________.

　　A) how well they could do in athletics

　　B) what their health condition was like

　　C) what kind of fitness center was suitable for them

　　D) whether they were fit for aerobic exercise��

　　39題考查對人們進行體能測試的目的。根據關鍵詞“physical fitness tests”，我們可以將考題定位至原文第二段，在第二段首句我們發現了因果關系標志詞“because”，二段首句就是我們要尋找的答案，閱讀者應當注意閱讀“because”后的原因內容。

　　Historically, most physical-fitness tests have usually included measures of muscular strength and endurance, not for health-related reasons, but primarily because such fitness components have been related to performance in athletics. However, in recent years, evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health benefits as well. The American College of Sports Medicine now recommends that weight training be part of a total fitness program for healthy Americans. Increased participation in such training is one of the specific physical activity and fitness objectives of Healthy People 2000: National Health Promotion and Disease Prevention Objectives.

　　二段首句的大意為：歷史上，大多數體能測試通常包括肌肉力量測試和耐力測試，這并不是要看誰更健康，主要是因為這些體能指標與體育成績有關。

　　根據這句話我們可以推斷，對人們進行體能測試是出于體育的目的，其目的在于考查他們能在運動中取得多好的成績。因此A選項“how well they could do in athletics”(人們在運動中能取得怎樣的成績)，是正確選項。

　　例 2 ：六級2001年1月19題：

　　19. Why did some TT practitioners agree to be the subjects of Emily's experiment?

　　A) It involved nothing more than mere guessing.��

　　B) They thought it was going to be a lot of fun.

　　��

　　C) It was more straightforward than other experiments.��

　　D) They sensed no harm in a little girl's experiment. ��

　　19題考察為何TT的從業人員同意接受Emily的實驗。在文章三段最后兩句，我們找到 了標志詞“because”，這兩句話闡述了某個因果關系。

　　Yet Rosa could not find any evidence that it works. To provide such proof, TT therapists would have to sit down for independent testing--something they haven't been eager to do, even though James Randi has offered more than $1 million to anyone who can demonstrate the existence of a human energy field. (He's had one taker so far. She failed.) A skeptic might conclude that TT practitioners are afraid to lay their beliefs on the line. But who could turn down an innocent fourth-grader? Says Emily: “I think they didn't take me very seriously because I'm a kid."�お�

　　最后兩句的大意為：誰會拒絕一個四年級的小孩?Emily說：“因為我是個孩子，所以他們沒把我當回事。”

　　根據這兩句話我們可以推斷TT從業人員之所以參見Emily的試驗，是因為他們認為Emily只是一個小孩子，參加她的試驗應當沒有任何危險。因此，19題D選項“They sensed no harm in a little girl's experiment.”(他們感到一個小女孩的實驗沒什么危險)是正確選項。