delta语法

lcbfeng

good job!

loralu

thanks a lot!!!

enjoylife517

delta-2-25
The largest poisonous snake, the king cobra, can be twice as long _______.
A. than the tall polar bear     B.as the polar bear is tall
C.is taller than the polar bear     D.the polar bear is not as tall
答案B，as...as, 可是加上tall怎么看怎么怪？有人能解释一下tall放在这里做什么用吗？

呵呵，因为两个东西不说明的话，没有可比性，蛇的长跟熊的长，概念上有不同，所以必须用tall来表达

enjoylife517

delta-2-17: It is (highly) recommended that any person (exploring) a cave（carries） a

source of (artificial) light.
答案是C， 说是要改成carry, 可是any person不是单数吗？

这里涉及的是动词recommend的虚拟语气用法，从句中省略should。但好像机考里面现在很少看到。

enjoylife517

delta-2-1: Because older adults have poorer vision and hearing, _______ some things they do not perceive as well as they used to.
A. along with B.thus C.there are D.but also
用排除法选了C，但是有个问题，things后面是不是省略了that? 这种省略在托福考试中常见吗？

这个是定语从句中省略情况，应该说还是挺多的吧。定语从句中只有做宾语时才能省略which，that