Interest in historical methods has arisen, less through external challenge to the validity of history as an intellectual discipline and more from internal quarrels among historians themselevs.
Additional social stresses may also occur because of the population explosion problems arising from mass migration movements—themselves made relatively easy nowadays by modern means of transport.
Many laboratories are developing medicines against AIDS.
参考译文:许多实验室正在研制治疗艾滋病的药物。
二、转换成名词
1.动词转换成名词
The university aims at the first rate of the world.
参考译文:学校的目标是世界一流。
2.形容词转换成名词
They did their best to help the sick and the wounded.
参考译文:他们尽了最大努力帮助病号和伤号。
3.代词转换成名词
According to a growing body of evidence, the chemicals that make up many plastics may migrate out of the material and into foods and fluids, ending up in your body.
The new type of machine is shown schematically in Figure1.
参考译文:图一所示是这种新型机器的简图。
三、转换成形容词
1.副词转换成形容词
The engineer had prepared meticulously for his design.
参考译文:工程师为这次设计做了十分周密的准备。
2.名词转换成形容词
Most teenagers feel no difficulty in learning and operating computers.
参考译文:绝大部分青少年在学习和操作电脑方面并不觉得困难。
四、转换成副词
形容词转换成副词
The wide application of electronic machines in scientific work, in designing and in economic calculations will free man from the labor of complicated computations.