有些考生在托福写作时一贯地使用简单句，导致文章读起来非常单调、乏味。为了增加文章的可读性，考生可以尝试变换句式，这样文章读起来会更加有节奏感。下面小编就为大家分享一些使得句式多样化的方法，一起来看一下吧。
一、改变句子开头
很多考生在写句子时喜欢用人作主语，但以主语开头的句子见多了，难免会让人感到厌倦。试比较：
A. We will never forget this lesson.
B. The lesson will be firmly rooted in our minds.
很显然，B句是变化后的句子，以物代人作为句子的主语，这样既改变了单调的句式，又突出了想要强调的内容。实际上，为了让文章显得生动活泼，除了用主语开头外，还可以用其它成分开头。例如：
用副词开头：Too often, students stray into the habit of cheating on tests.
用状语开头：Dark and empty, the house looked very different from the way I remembered it.
用表语开头：Equally essential to the highest success in learning a language are intense interest and persistent effort.
二、巧用连接词
有的考生在作文中使用太多的简单句，句子显得很刻板。为了避免这种现象，我们可以通过使用一些连接词如“who，which，that，because，although，whenever，unless”等来丰富句式，把思想表达得更清楚、意义更连贯。例如：
The Mississippi River is one of the longest rivers in the world, and in spring time it often overflows its banks, and the lives of many people are endangered.
此句中“and”把三个分句一贯到底，读起来很乏味。但是如果使用了连接词“which”，语义就会更连贯、语言就会更顺畅：
The Mississippi River, which is one of the longest rivers in the world, often overflows its banks in spring time, endangering the lives of many people.
三、长短句交叉
长句和短句是就字数多少、句子长短而言的。长句和短句各有其优点和缺点：长句，因为使用的修饰成分较多，因此比较精确和严密，但使用起来不够活泼、简便;短句，字数少，直截了当，一般比较简洁、明快，但不利于表达复杂的语义内容。在托福写作中，最好长短句交替使用，增强语言的节奏感。例如：
(1) We can imagine the beautiful surroundings. (2) There are many trees along the streets. (3) There is a clean river in the city. (4) There are many fishes in the river. (5) There are willow trees on the one side. (6) There are some pieces of grassland on the other side. (7) There are many flowers on them.
文中的7个句子都是简单句，句式结构单一，十分单调，下面是修改后的句子：
(1) Just imagine the beautiful surroundings if we have made our cities greener. (2) Green trees line the streets. (3) A clean river winds through the city, in which a lot of fishes abound. (4) On the one side stand rows of willow trees. (5) On the other side lies a stretch of grassland sprinkled with many yellow and red flowers.
改写后的这段文字，有长句(1)，(3)，(5)，也有短句(2)和(4)，一长一短，抑扬顿挫的节奏感就出来了。不仅句子长短交叉，而且句式结构变化也很大，使文章流畅自然，生动活泼。
以上就是小编为大家分享的使得托福写作句式多样化的方法，希望能给大家的学习带来帮助。最后，小编祝愿各位考生在托福考试中取得好成绩!
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