ACT(American College Test)考试与SAT考试均被称为“美国高考”,它们既是美国大学的入学条件之一,又是大学发放奖学金的主要依据之一及对学生综合能力的测试标准。这个考试也被所有美国四年制大学承认,与SAT相比学校没有偏向性,两个考试的成绩均接受。和SAT不同,ACT考试更像一种学科考试,它更强调考生对课程知识的掌握,同时也考虑到了对考生独立思考和判断能力的。从时间上看,ACT考试比SAT紧张;从难度上看,ACT考试比SAT更容易一些,尤其对中国的考生来说,选择ACT考试可能更容易在短期内获得相对满意的成绩! 今天课窝小编为大家准备了ACT语法,希望能够对你有所帮助,顺利通过2018年的ACT考试,早日实现自己的留学梦!

熟悉非谓语动词的同学们应该都知道,非谓语动词包括to do, doing和done,这三类动词的特别之处就在于它们可以在句子里面充当除谓语以外的任何成分,其中一个非常重要的用法就是位于名词后作为名词的后置定语,比如:
The semiarid lands bordering the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures.
以上例句里的非谓语动词的短语“bordering the deserts”就是用作定语来修饰前面的名词短语“the semiarid lands”。
很多同学很熟悉定语从句,而对非谓语动词的用法总是有种望而却步的感觉。
但是细心的同学肯定会发现,其实在语法家族里,当将非谓语动词用作后置定语的时候,它与定语从句的用法是一样的,两者是名副其实地长相不同,但却有血缘关系的“远房表亲”。比如,上面的例子我们就可以改写成定语从句:
The semiarid lands which border the deserts exist in a delicate ecological balance and are limited in their potential to adjust to increased environmental pressures.
再如以下带有非谓语动词短语的句子:
Theorist adopting the psychodynamic approach hold that inner conflicts are crucial for understand human behavior, including aggression.
我们可以改成定语从句:
Theorist who adopt the psychodynamic approach hold that inner conflicts are crucial for understand human behavior, including aggression.
又如,以下的两个句子的意思是相同的:
1.What audience came to see was the magic made possible by trick photography and manipulation of the cinema.
2.What audience came to see was the magic that was made possible by trick photography and manipulation of the cinema.
在很多情况下,学生更容易理解定语从句。所以,下次在处理包含非谓语动词短语的长难句时,不妨将其改写成定语从句,方便我们理解长难句。
那么问题来了,定语从句和作定语的非谓语动词之前是否有某种特定的对应关系呢?答案是有的,关系如下:
Which be to do = to do(表主动/将来)
Which do... = doing...(表主动)
Which be done... = done...(表被动)
为方便大家记忆,大家准备了一个“玫瑰凋谢理论”:
1.The roses to be planted in the garden are fading away.
2.The roses which are to be planted in the garden are fading away.
1.The roses growing in the garden are fading away.
2.The roses which grow in the garden are fading away
1.The roses planted in the garden are fading away.
2.The roses which are planted in the garden are fading away
今天上海ACT培训小编就和大家分享以上ACT课程内容,希望大家能够熟练掌握,对同学们2018年ACT考试会有所帮助的,小编会继续更新ACT真题,ACT数学以及ACT写作等相关内容。
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