Question

高考非谓语求救，两道高三语法题 。求各选项详细解释，感激不尽。

1.____,There seemed little hope that the explorer would find his way through the forest
A.Having been deserted by his guide
B.As he had been deserted by his guide
C.deserted by his guide【非谓语作原因状语为什么不可以？】
D.he had been deserted by his guide
2.___,Dr.Baker is invited to deliver a speech on education and culture sometime in August.
A.Previously arranged
B.Having previously been arranged
C.it having previously arranged
D.As previously arranged

Answer 1

一、第一题答案应该是B。这涉及一个语法概念的理解，这个概念往往被人们忽视。
1、先看一个专四的练习题：
There seemed little hope that the explorer, ____ in the tropical forest, would find his way through it.
a. to be deserted b. having deserted
c. to have been deserted d. having been deserted
答案是d.
试想，如果把题目改成：
____ , there seemed little hope that the explorer in the tropical forest would find his way through it.
答案还可以是having been deserted吗？
不行！为什么呢？
2、语法概念：如果非谓语形式在主句之前，它的逻辑主语是否出现取决于一下三种情况：
a.它有自己的逻辑主语；
b.它的逻辑主语就是主句的主语；
c.它是习惯用法。
据此， 第一题可以排除选项A和C，答案应该是B。
二、第二题答案是D，因为被安排的是整个一件事，用as 来指称。

Answer 2

1应该是b。c的那个肯定不行，前后句的主语不一样，而且没有连词。第二个d。A没有连词。B 显然选项中省略的主语是受邀的这件事，而后面主句的主语是Baker，所以连词和主语都省了是不对的。C 直接是个4不像，没有这种结构。