2017届高考英语一轮复习夯实训练：Unit 17《Laughter》（北师大版含解析）_高考复习指南

2017届高考英语一轮复习夯实训练：Unit 17《Laughter》（北师大版含解析）

　　．解析：选D　细节理解题。根据文章的第三段可知，医生应该避免在脸谱网上添加患者为朋友，他们也不应该拥抱病人或让病人直呼他们的名字，即医生应该和病人保持适当的距离，故选D项。

　　．解析：选A　细节理解题。根据倒数第三段中的“Young oncologists have to master ... and likely treatment aims.”可知，B、C、D三项表述正确；年轻的肿瘤学家需要掌握如何对待面临生命威胁的焦虑病人，A项“处理很多威胁生命的疾病”表述错误。故选A项。

　　．解析：选B　推理判断题。根据倒数第二段中的“Those doctors who have entered ... boundaries with patients.”可推知，网络使得医生更容易模糊与病人之间的职业分界线，故选B项。C

　　Today, ultrasonic(超声的) waves are being put to work in laboratories and factories. If an ultrasound generator is placed in a liquid, the waves move the liquid back and forth hundreds of thousands of times each second. This causes materials to mix quickly or to dissolve(使分解，使溶解) in liquids. Paint manufacturers(制造商) use ultrasound to do a better job of blending colors. The companies that make film for your camera find that mixing chemicals by the use of sound waves will produce a more sensitive film.

　　The new lightweight(轻量的) type of washing machine uses ultrasonic waves to get clothes clean. Its special ultrasound generator is put into a pail of soapy water containing the soiled clothes. The sound waves drive the soapy water back and forth through the cloth so fast that everything is soon clean. There is also a new kind of dishwasher that works in much the same way.