3)previously thought指的是life-forms were previously thought to emerge,------>life-forms emergedearlier than ( life-forms were) thought( to emerge),也就是说省略了 life-forms were&to emerge,我可以理解to emerge可以省略,但是不理解were为什么能省略?前面并没有出现过were,所以后面的were并不是repeat,怎么能省略呢? 为什么这里不补全为life-forms emerged earlier than that were previously thought呢?
--------------------------------------------------------------------------------------------------------------------------------------------------- 114:(正确句子) Starfish, with anywhere from five to eight arms, have a strong regenerative ability, and if one arm is lost it is quickly replaced ,with the animal sometimes overcompensating and growing an extra one or two.
每次看到with就头痛,究竟修饰谁不说,修饰的意思也往往让我看不懂,
这里第一个with,修饰subject,这里也是先行词(starfish),但是with后面是什么意思呢?这个anywhere是什么东西?我的理解是“无论从哪里来的,有五到八个胳膊的,海星” 第二个with,修饰if...than...clause,也就是with前面的clause。这个animal想想应该也只能指starfish,但读起来就是很奇怪!是不是因为前面句子中有it,且指代arm,所以with后面不能再用代词,以免歧义? 如果不考虑"if"前面这个“and”,句子是不是可以表述为:if one arm is lost it is quickly replaced ,andthe starfish sometimes overcompensate and grow an extra one or two.
7正确句子) The intricate structure of the compound insect eye, with its hundreds of miniature eyes called ommatidia,helps explain why scientists have assumed that it evolved independently of the vertebrate eys.
Starfish, with anywhere from five to eight arms, have a strong regenerative ability, and if one arm is lost it quickly replaces it, sometimes by the animal overcompensating and growing an extra one or two.
这道题目的with是独立主格结构的标志,提醒你们哦