雅思寫作從語和句型
Group 1
1.…,which leads to…
2.with…,…
with結構除了表示“隨著”，也可以表達“因為”。后面記得不接常規完整句子，而是名詞，或者一些分詞的形式。
例句：I couldn’t sleep with the noise of the traffic.
3.The reason why…is that…
The reason why后面接結果，is that后面加原因，都是寫完整的句子。
4.This is because…
5.The main/primary reason is that….
6.That is why….
例句：That is why this year is likely to be just the beginning of many discussions like the one at the Munich security conference.
7.It is only because…that…
例句：It is only because we have become used to these extraordinarily fragile structuresthat this demand seems so outrageous.
Group 2
1.…,leading to…
2.…,thus doing…
3.…,thereby doing…
例句：Unions often rely on volunteers to administrate,thereby keeping costs at a minimum.
4.thereby
例句：This is due to ignorant motorists who fail to stop and thereby put the lives of her and the children at risk.
5.leading to
這個可以用任何其他表示"導致"的詞匯去替換。
例句：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.
后兩個句子種的doing，要根據句子本身表達的內容去寫對應的動詞。thereby單獨用的時候，一般在句中，做一個普通的副詞。
Group 3
1.be a contributing factor
例句：Human error may have been a contributing factor.
2.be a factor contributing to
3.be a contributory cause of
例句：Smoking may be a contributory cause of the disease.
4.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。
例句1：Supermarkets are the main contributors to this mountain of food.
例句2：Juvenile delinquency can be attributed to parental permissiveness.
例句3：The health problems are attributable to a poor diet and lack of exercise.
Group 4
第1、2個表達強調后面的原因是最重要的，后面3個都表達這個原因是相對次要的。
1.…,not least because…
2.…,in large part because
例句：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.
3.…,if for no other(better)reason than
例句：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.
4.…,because at least…
例句：Monotony is a big problem for the moralist because at least half of human's bad habits result from his fear of it.
5.…,if only because
例句：We are confident if only because we are making progress.
Group 5
1.…so…that…
2.So…that…
例句：So scarce is the food that many people suffer from starvation.
3.Such…that…
例句：Such is the moment that all greats traverse.
4.…enough…that…
例句：Another excellent way to eliminate error messages is to make the application smartenough that it no longer needs to make unnecessary demands.
這幾個詞組都是圍繞常規的“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。
這個表達在因果關系中并不特別普遍。不是每次的原因，而是so/such之后。
