在托福的综合写作中，要求考生结合从阅读和听力部分中获取的信息来进行文章的写作，对综合写作阅读内容的总结和阐释不能照抄阅读文章原文，因此需要考生具备一定的概括能力。所谓概括能力，是指将段落中的论据或细节通过递进、并列、转折、因果等关系进行组织。具体怎么做?下面小编就通过实例为大家讲解。
我们来看下列的段落：The online questionnaire is able to feature many online options to help a respondent complete the survey that normally he or she might not be able to receive. For example, there could be a glossary to explain an unknown word. Also, the questionnaire submission is much easier, done at the click of a button instead of wasting time and effort via mailing the forms.
这个段落的分论点是many online options(在线选项)可以帮助很多问卷调查者(respondents)更好地完成问卷。通过论据和细节的展开，我们知道这些 online options 既包括 glossary 对不熟悉的单词进行解释，又包括easy submission.所以用一句话来概括这段话，应该为：
There are more online features that are helpful for questionnaire respondents, such as glossaries to explain unfamiliar words and easy submissions at the click of a button.
再如：Moreover, genetically modified trees promise to bring a number of economic benefits to those who grow them. Genetically modified trees tend to grow faster, give greater yields of food, fruit, or other products, and be hardier. This allows tree farmers to get faster and greater returns on their farming investment and save on pesticides as well.这个段落的分论点是 genetically modified trees(转基因树木)带来许多经济利益。通过论据和细节的展开，我们知道这是因为 genetically modified trees 生长的更快、产量更大、更为耐寒;而这些特质使得树农投资回报更快、更多，并且节约了杀虫剂的开支。用一句话来概括这段话，应该为：Genetically modified trees bring tree farmers many economic benefits, including favorable returns on their investment and savings on pesticides.
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