Question

一英语问题，感激不尽！！！！

The scientists and technicians overcame a lot of difficult________ the personal computer.
A they had developing
B having developing
C they had developed
D which had to develop

完全没方向。。。求解老师。。。该咋办？？

Answer 1

答案：A.

翻译：科学家和技术人员克服了很多他们在开发/发展个人电脑上所碰到的困难。

解释：
1. 此题关键也在于划分句子结构。
主句为：The scientists and technicians overcame a lot of difficulty.
后面是定语从句____ the personal computer，修饰并做主句中宾语difficulty的定语。
2. 关系代词which/that代替先行词difficulty，并在该定语从句中充当谓语动词had的宾语，所以关系代词可以省略。
即：(which/that) they had developing the personal computer
= they had (which/that) developing the personal computer
= they had (difficulty) developing the personal computer
该从句含有一个固定句型：sb have difficulty + with sth 或 (in) doing sth，意思是“某人在（做）某事上有困难/麻烦”，其中的介词in可以省略。
3. C/D中的定语从句结构有误，排除；
B使用非谓语动词做后置定语，但是被修饰词difficulty和having developing之间无法搭配，且主动被动关系有误，排除。

Answer 2

答案：A 。解析：译：科学家和技术人员们克服他们所遇到的困难而发展了个人电脑。they had 做 difficult 的定语从句，引导词that 或which在此作从句中作宾语被省略。此处相当于 overcome difficult （in）doing sth ，克服困难做某事。故选项A是正确答案。B明显有语法错误，C,D只能看作difficult的定语从句，翻译不通。

Answer 3

选择D 。科学家和技术人员克服了很多困难发展个人计算机。考察的是限制性定语从句. The scientists and technicians是主语，后面不再需要主语了，D中用which代替。A和C因为they有被排除，B中是语法错误.

Answer 4

答案为D
但是题目中的difficult应为difficulties，选项D中的which应为they
they had 是一个非常小的定语从句，to develop the personal computer是不定式短语做状语

Answer 5

A,B,C的答案都不对！正确的是：The scientists and technicians overcame a lot of difficulties in developing (the) personal computer.望采纳！