从句的主语和be动词一起省略。本题中Determined to get a ticket for the concert =He is determined to get a ticket for the concert，省略了主语he和be动词is。

3._____, the student insisted that he _____ separated from his desk mate, who is very naughty.

A. To avoid being affected; be B. To avoid to be affected; would be

C. Avoid being affected; should be D. Avoiding to be affected; be

【答案】A

【解析】

【详解】考查非谓语动词及虚拟语气。句意：为了避免受到影响，这个学生坚持要求他应该和他非常淘气的同桌分开。固定短语avoid doing sth"避免做某事"，与逻辑主语the student为被动关系，故用被动语态avoid being done。根据句意，逗号前面部分应该是目的状语，故用不定式作目的状语。第二空动词insist为"坚持要求"之意，后接从句用"(should) + 动词原形"，其中should可以省略。故选A。

【点睛】insist的宾语从句的用法一般分为两种情况：

1）如果insist翻译为"坚持说/坚持认为"，且宾语从句的动作为已经发生的情况，此时宾语从句采用正常的陈述语气。如：He insisted that he was right. 他坚持说/认为他是对的。

2）如果insist翻译为"坚决主张/要求"，即宾语从句的动作当时尚未发生，此时宾语从句必须采用虚拟语气，构成为从句谓语动词用"(should) + 动词原形"，其中should可以省略。如：He insisted that he (should) be praised for what he had done.

3）此题中的insist所引导的宾语从句采用了虚拟语气，即he be separated = he should be separated

4.A murderer has escaped from prison, so a nationwide search for him is ________.

A. on the way B. in a way

C. in the way D. under way

【答案】D

【解析】

试题分析：考查介词短语辨析。句意：一个杀人犯越狱了，因此，一场全国范围的搜捕正在进行。A在去的路上；B在某种程度上；C妨碍，挡道；D正在进行。故选D。

考点：考查介词短语辨析