今天小编就为大家介绍一下ACT英语之开头与结尾这方面的知识点，希望可以帮助到大家。

　　一、开头与结尾

　　开头与结尾的题型也可以简单理解为引起或总结段落大意的题型。

　　这类题型的题干中常会出现以下关键词：an ending most consistent with the essay as a whole, most effective introductory phrase, most effectively conclude this paragraph, the most effective first sentence of paragraph 等。

　　二、真题解析

　　为了帮助大家更加充分地掌握这一考点用法，小编从历年真题中为大家精选了两道同类型题，大家可以练习一下，看看是否能够完全吸收这一知识点。

　　例1：Kevin and his parents believed that his constitutional rights had been violated. The United States District Court of New Hampshire agreed to hear Kevin's case. His claim was based in the notion of personal liberty一the tight of every individual to the control of his or her own person—protected by the Constitution's Fourteenth Amendment. The court agreed with Kevin that a person's right to wear clothing of his or her own choosing is, in fact, protected by the Fourteenth Amendment. The court noted, however, that restrictions may be justified in some circumstances, such as in the school setting.

　　Given that all of the choices are true, which one would most effectively introduce the main idea of this paragraph?

　　A.NO CHANGE

　　B.The principal said dungarees and blue jeans were the same thing, so Kevin should have known better.

　　C.If Kevin's jeans had been dirty and tom, the principal might have been justified in expelling him.

　　D.These events occurred in a time of social unrest, and emotions were running high.

　　解析：题干要求是选择最能总结本段段落大意的选项，选项B、C和D都过分侧重于具体细节信息。例如选项B侧重于解释dungarees和蓝牛仔是同样的东西，选项C侧重于如果Kevin的衣服脏了怎么办，选项 D侧重于在社会不安定的因素下会发生什么样的事情。只有选项A 能涵盖本段的段落大意，“Kevin和他的父母认为他的宪法权利被侵犯”，接下来是用具体事例证明Kevin认为哪些权利被侵犯。所以正确答案是A.

　　例2：As for the programming function, Grandpa not only uses it for the news but also for playing jokes on his youngest children. Explaining to the unsuspecting child that he has a remote control implanted in his little finger, grandpa points his finger at the TV and, to the child's amazement, seemingly turns it on. I suppose Grandpa hasn't learned all the possible uses of the remote control, but I don't doubt he will continue to discover new and creative ways of using it.

　　Which of the choices would provide an ending most consistent with the essay as a whole?

　　A.NO CHANGE

　　B.and he probably won't bother learning them either.

　　C.so the salesperson should explain how to interpret the 200-page manual.

　　D.and Grandma gratefully acknowledges this.

　　答案解析：本题是要求给段落提供一个最佳的段落结尾。选项C中的salesman 和选项D中的Grandma在本段中根本没有出现,所以直接排除;从段落的叙述中可以看出，Grandpa对遥控器充满了好奇和喜爱，所以选项A能更好、更形象地表达作者的感想，是最佳答案，而选项B太过平淡。所以正确答案是A.

　　三、答题关键

　　通过以上两道真题实例，相信大家现在对开头与结尾这类题型已经有了更深刻的认识，以下是小编为大家总结的几点这类题型的答题关键，大家在平时学习的时候要注意融会贯通，灵活运用。

　　一是要注意开头或结尾通常都是带有总结意味的句子;

　　二是学会抓段落中的关键词句，迅速判断选项和段落中的事例或叙述是否一致;

　　三是注意开头和结尾句的承上启下的连接词的选用;

　　四是通常来说开头和结尾的句子都不会过分专注于某一具体信息。