because作為一個高頻詞妥妥地出現(xiàn)在同學(xué)們的口語寫作中，也因其強(qiáng)大的情感特征，成為最不好被替換掉的連接詞之一。那么如果你確實(shí)用膩了because，想找?guī)讉€替換詞換著用該怎么辦?所以今天決定把雅思寫作中最常見的一種論證方法：因果論證，以及里面可以用到的一些表達(dá)匯總一下。
　　下面的總結(jié)分為 4 大類：
　　基礎(chǔ)替換詞：比如 since, as, due to 等
　　從句和句型：比如 which leads to, with 結(jié)構(gòu)等
　　表達(dá)的轉(zhuǎn)述：比如 be responsible for 等
　　不完全替換：比如 by dint of 等
　　其中重點(diǎn)推薦第 2 種和第 3 種方式，希望你看完之后會覺得非常實(shí)用，以至于下次寫到 because 的時候覺得不替換都不舒服。
　　今天為大家分享五類從句和句型
　　Group 1
　　..., which leads to ...
　　with ..., ...
　　The reason why ... is that ...
　　This is because ...
　　The main/ primary reason is that ... .
　　That is why ... .
　　It is only because ... that ...
　　with 結(jié)構(gòu)除了表示“隨著”，也可以表達(dá)“因?yàn)椤薄：竺嬗浀貌唤映Ｒ?guī)完整句子，而是名詞，或者一些分詞的形式。
　　The reason why 后面接結(jié)果，is that 后面加原因，都是寫完整的句子。
　　It is only because we have become used to these extraordinarily fragile structuresthat this demand seems so outrageous.
　　That is why this year is likely to be just the beginning of many discussions like the one at the Munich security conference.
　　I couldn’t sleep with the noise of the traffic.
　　Group 2
　　..., leading to ...
　　..., thus doing ...
　　..., thereby doing ...
　　thereby
　　leading to 這個可以用任何其他表示"導(dǎo)致"的詞匯去替換。
　　后兩個句子種的 doing，要根據(jù)句子本身表達(dá)的內(nèi)容去寫對應(yīng)的動詞。thereby 單獨(dú)用的時候，一般在句中，做一個普通的副詞。
　　Unions often rely on volunteers to administrate, thereby keeping costs at a minimum.
　　This is due to ignorant motorists who fail to stop and thereby put the lives of her and the children at risk.
　　A second object was described to be identical to the one seen by the second mission,leading to the same conclusion as to its risk.
　　Group 3
　　be a contributing factor
　　be a factor contributing to
　　be a contributory cause of
　　be contributing to
　　be a major contributor to
　　attribute ... to ...
　　... be attributed to
　　... be attributable to
　　contribute 和 attribute 某種程度來講是一對反義詞。前者是 A 促成了 B，后者是把 B 歸因于 A。所以后者更多用被動來表達(dá)。
　　Supermarkets are the main contributors to this mountain of food.
　　Human error may have been a contributing factor.
　　Smoking may be a contributory cause of the disease.
　　Juvenile delinquency can be attributed to parental permissiveness.
　　The health problems are attributable to a poor diet and lack of exercise.
　　Group 4
　　..., not least because ...
　　..., in large part because
　　..., if for no other (better) reason than
　　..., because at least...
　　..., if only because
　　第 1、2 個表達(dá)強(qiáng)調(diào)后面的原因是最重要的。后面 3 個都表達(dá)這個原因是相對次要的。
　　Despite well-intentioned policies and laws, the situation on the ground is often quite different, in large part because of the difficulty of enforcement, both within and across borders.
　　It is essential, if for no other reason than for a unity in teaching, that each member of the school community adopts a common outlook on life。
　　Monotony is a big problem for the moralist because at least half of human's bad habits result from his fear of it.
　　We are confident if only because we are making progress.
　　Group 5
　　... so ... that ...
　　So ... that ...
　　Such ... that ...
　　... enough ... that ...
　　這幾個詞組都是圍繞常規(guī)的“如此...以至于...”句型的一些變形。so 后面加形容詞，such 后面加名詞，他們兩個放句首，需要倒裝。
　　這個表達(dá)在因果關(guān)系種不是特別常見，因?yàn)椴皇敲看蔚脑蚨伎梢宰兊?so/ such 后面去。
　　So scarce is the food that many people suffer from starvation.
　　Such is the moment that all greats traverse.
　　Another excellent way to eliminate error messages is to make the application smartenough that it no longer needs to make unnecessary demands.