語法拓展
插入語(1)
插入語是指插入到主、謂、賓、賓補(通常被稱為句子的必要成分)之間的從句、短語或單詞。插入語在分隔這些語法成分的同時,對句子的內容進行補充、添加、限制或解釋說明。插入語按構成來劃分,主要有以下幾種:
1)名詞結構作插入語。例如:When all these shaping forces schools, open attitudes, the premiumsystem, a genius for spatial thinking—interacted with one another on the rich U.S. Mainland, theyproduced that American characteristic emulation. 當所有這些構成因素——學校、開放態度、獎金制度、真正的空間思維方式——在美國本土相互作用時,具有美國特點的競爭就被孕育出來了。
2)形容詞或副詞結構作插入語。例如:Because thanks to these schools, our early mechanics, especially inthe New England and Middle Atlantic states, were generally literate and at homein arithmetic and in some aspects of geometry and trigonometry. 因為有這樣的學校,我們當年的技工——特別是新英格蘭和大西洋沿岸中部各州的技工——總體上來說是有文化、懂算術并具有一定的幾何三角知識的。
3)介詞短語作插入語。例如:It should be observed , of course, that no school, vocational or not,is helped by a confusion over its purpose. 當然應該注意到,不管是職業學校還是非職業學校,目標混亂都是有益無害的
4)連詞作插入語。例如:On the other hand, though , if a child is left alone too much, orwithout any learning opportunities, he loses his natural enthusiasm for lifeand his desire to find out new things for himself. 但是另一方面,如果放任一個孩子過度自由,或是不給他任何學習的機會,他就會喪失對生活天生的熱情,失去發掘新事物的欲望。