答案　B

解析　答语句意为：或许他在回忆自己的童年。Look back on回顾，回忆。

6．Upon graduation from school，how well will you ________the job that lies ahead?

A．prepare B．prepare for

C．be prepared for D．be preparing

答案　C

解析　how well已暗示空白处应选择表状态的短语，故只能选C。

7．After he was knocked down by a car which escaped immediately，he ________to his feet and called 120 and the police station.

A．stood B．struggled

C．ran D．rose

答案　B

解析　struggle to one's feet是固定词组，意为"挣扎着站起来"。故选B。

8．The boss insisted that every minute________ made full use of________ the work well.

A．be；to do B．was；doing

C．be；doing D．was；to do

答案　A

解析　句意为：老板要求应该充分利用每分钟来做好工作。make full use of every minute to do...充分利用每一分钟做......，insist作"坚持要求"讲时，后所接的宾语从句中谓语动词用"(should＋) do"形式；不定式to do the work well在句中作目的状语。故选A。

9．________on my computer，I found an email from my pen friend，________me to spend the summer holiday in his city.

A．On turning；invited

B．On turning；inviting

C．When having turned；to invite

D．After having turned；inviting

答案　B

解析　第一空为"on＋doing..."结构，意为"一......就......"；第二空为v.­ing形式作定语，和email构成逻辑上的主谓关系。故选B。

10．________tablet computers like Apple's iPad just before bed，a research says recently，can lead to poor night sleep.

A．Using B．Used

C．To be used D．Use

答案　A